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fix(deps): update module github.com/onsi/ginkgo/v2 to v2.26.0

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Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
This commit is contained in:
renovate[bot] authored and GitHub committed 2025-10-02 15:28:39 +00:00
1 parent 9570f99790
commit 72ffd00c5a
91 files changed
+35620 -8
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go.mod
+1 -1
View File
@@ -47,7 +47,7 @@ require (
github.com/moby/sys/user v0.4.0
github.com/moby/term v0.5.2
github.com/nxadm/tail v1.4.11
github.com/onsi/ginkgo/v2 v2.25.3
github.com/onsi/ginkgo/v2 v2.26.0
github.com/onsi/gomega v1.38.2
github.com/opencontainers/cgroups v0.0.5
github.com/opencontainers/go-digest v1.0.0
go.sum
+24 -2
View File
@@ -131,6 +131,12 @@ github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S
github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
github.com/fsouza/go-dockerclient v1.12.1 h1:FMoLq+Zhv9Oz/rFmu6JWkImfr6CBgZOPcL+bHW4gS0o=
github.com/fsouza/go-dockerclient v1.12.1/go.mod h1:OqsgJJcpCwqyM3JED7TdfM9QVWS5O7jSYwXxYKmOooY=
github.com/gkampitakis/ciinfo v0.3.2 h1:JcuOPk8ZU7nZQjdUhctuhQofk7BGHuIy0c9Ez8BNhXs=
github.com/gkampitakis/ciinfo v0.3.2/go.mod h1:1NIwaOcFChN4fa/B0hEBdAb6npDlFL8Bwx4dfRLRqAo=
github.com/gkampitakis/go-diff v1.3.2 h1:Qyn0J9XJSDTgnsgHRdz9Zp24RaJeKMUHg2+PDZZdC4M=
github.com/gkampitakis/go-diff v1.3.2/go.mod h1:LLgOrpqleQe26cte8s36HTWcTmMEur6OPYerdAAS9tk=
github.com/gkampitakis/go-snaps v0.5.14 h1:3fAqdB6BCPKHDMHAKRwtPUwYexKtGrNuw8HX/T/4neo=
github.com/gkampitakis/go-snaps v0.5.14/go.mod h1:HNpx/9GoKisdhw9AFOBT1N7DBs9DiHo/hGheFGBZ+mc=
github.com/go-jose/go-jose/v4 v4.0.5 h1:M6T8+mKZl/+fNNuFHvGIzDz7BTLQPIounk/b9dw3AaE=
github.com/go-jose/go-jose/v4 v4.0.5/go.mod h1:s3P1lRrkT8igV8D9OjyL4WRyHvjB6a4JSllnOrmmBOA=
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
@@ -147,6 +153,8 @@ github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1v
github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
github.com/go-test/deep v1.1.1 h1:0r/53hagsehfO4bzD2Pgr/+RgHqhmf+k1Bpse2cTu1U=
github.com/go-test/deep v1.1.1/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw=
github.com/goccy/go-yaml v1.18.0/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
github.com/godbus/dbus/v5 v5.1.1-0.20241109141217-c266b19b28e9 h1:Kzr9J0S0V2PRxiX6B6xw1kWjzsIyjLO2Ibi4fNTaYBM=
github.com/godbus/dbus/v5 v5.1.1-0.20241109141217-c266b19b28e9/go.mod h1:3AAv2+hPq5rdnr5txxxRwiGjPXamgoIHgz9FPBfOp3c=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
@@ -205,6 +213,8 @@ github.com/jmhodges/clock v1.2.0 h1:eq4kys+NI0PLngzaHEe7AmPT90XMGIEySD1JfV1PDIs=
github.com/jmhodges/clock v1.2.0/go.mod h1:qKjhA7x7u/lQpPB1XAqX1b1lCI/w3/fNuYpI/ZjLynI=
github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtLA=
github.com/josharian/native v1.1.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
github.com/joshdk/go-junit v1.0.0 h1:S86cUKIdwBHWwA6xCmFlf3RTLfVXYQfvanM5Uh+K6GE=
github.com/joshdk/go-junit v1.0.0/go.mod h1:TiiV0PqkaNfFXjEiyjWM3XXrhVyCa1K4Zfga6W52ung=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
github.com/kevinburke/ssh_config v1.4.0 h1:6xxtP5bZ2E4NF5tuQulISpTO2z8XbtH8cg1PWkxoFkQ=
@@ -229,6 +239,8 @@ github.com/lufia/plan9stats v0.0.0-20240909124753-873cd0166683 h1:7UMa6KCCMjZEMD
github.com/lufia/plan9stats v0.0.0-20240909124753-873cd0166683/go.mod h1:ilwx/Dta8jXAgpFYFvSWEMwxmbWXyiUHkd5FwyKhb5k=
github.com/manifoldco/promptui v0.9.0 h1:3V4HzJk1TtXW1MTZMP7mdlwbBpIinw3HztaIlYthEiA=
github.com/manifoldco/promptui v0.9.0/go.mod h1:ka04sppxSGFAtxX0qhlYQjISsg9mR4GWtQEhdbn6Pgg=
github.com/maruel/natural v1.1.1 h1:Hja7XhhmvEFhcByqDoHz9QZbkWey+COd9xWfCfn1ioo=
github.com/maruel/natural v1.1.1/go.mod h1:v+Rfd79xlw1AgVBjbO0BEQmptqb5HvL/k9GRHB7ZKEg=
github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -245,6 +257,8 @@ github.com/mdlayher/socket v0.5.1 h1:VZaqt6RkGkt2OE9l3GcC6nZkqD3xKeQLyfleW/uBcos
github.com/mdlayher/socket v0.5.1/go.mod h1:TjPLHI1UgwEv5J1B5q0zTZq12A/6H7nKmtTanQE37IQ=
github.com/mdlayher/vsock v1.2.1 h1:pC1mTJTvjo1r9n9fbm7S1j04rCgCzhCOS5DY0zqHlnQ=
github.com/mdlayher/vsock v1.2.1/go.mod h1:NRfCibel++DgeMD8z/hP+PPTjlNJsdPOmxcnENvE+SE=
github.com/mfridman/tparse v0.18.0 h1:wh6dzOKaIwkUGyKgOntDW4liXSo37qg5AXbIhkMV3vE=
github.com/mfridman/tparse v0.18.0/go.mod h1:gEvqZTuCgEhPbYk/2lS3Kcxg1GmTxxU7kTC8DvP0i/A=
github.com/miekg/pkcs11 v1.1.1 h1:Ugu9pdy6vAYku5DEpVWVFPYnzV+bxB+iRdbuFSu7TvU=
github.com/miekg/pkcs11 v1.1.1/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
github.com/mistifyio/go-zfs/v3 v3.0.1 h1:YaoXgBePoMA12+S1u/ddkv+QqxcfiZK4prI6HPnkFiU=
@@ -282,8 +296,8 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
github.com/nxadm/tail v1.4.11 h1:8feyoE3OzPrcshW5/MJ4sGESc5cqmGkGCWlco4l0bqY=
github.com/nxadm/tail v1.4.11/go.mod h1:OTaG3NK980DZzxbRq6lEuzgU+mug70nY11sMd4JXXHc=
github.com/onsi/ginkgo/v2 v2.25.3 h1:Ty8+Yi/ayDAGtk4XxmmfUy4GabvM+MegeB4cDLRi6nw=
github.com/onsi/ginkgo/v2 v2.25.3/go.mod h1:43uiyQC4Ed2tkOzLsEYm7hnrb7UJTWHYNsuy3bG/snE=
github.com/onsi/ginkgo/v2 v2.26.0 h1:1J4Wut1IlYZNEAWIV3ALrT9NfiaGW2cDCJQSFQMs/gE=
github.com/onsi/ginkgo/v2 v2.26.0/go.mod h1:qhEywmzWTBUY88kfO0BRvX4py7scov9yR+Az2oavUzw=
github.com/onsi/gomega v1.38.2 h1:eZCjf2xjZAqe+LeWvKb5weQ+NcPwX84kqJ0cZNxok2A=
github.com/onsi/gomega v1.38.2/go.mod h1:W2MJcYxRGV63b418Ai34Ud0hEdTVXq9NW9+Sx6uXf3k=
github.com/opencontainers/cgroups v0.0.5 h1:DRITAqcOnY0uSBzIpt1RYWLjh5DPDiqUs4fY6Y0ktls=
@@ -383,6 +397,14 @@ github.com/sylabs/sif/v2 v2.21.1 h1:GZ0b5//AFAqJEChd8wHV/uSKx/l1iuGYwjR8nx+4wPI=
github.com/sylabs/sif/v2 v2.21.1/go.mod h1:YoqEGQnb5x/ItV653bawXHZJOXQaEWpGwHsSD3YePJI=
github.com/tchap/go-patricia/v2 v2.3.3 h1:xfNEsODumaEcCcY3gI0hYPZ/PcpVv5ju6RMAhgwZDDc=
github.com/tchap/go-patricia/v2 v2.3.3/go.mod h1:VZRHKAb53DLaG+nA9EaYYiaEx6YztwDlLElMsnSHD4k=
github.com/tidwall/gjson v1.18.0 h1:FIDeeyB800efLX89e5a8Y0BNH+LOngJyGrIWxG2FKQY=
github.com/tidwall/gjson v1.18.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
github.com/tidwall/match v1.1.1 h1:+Ho715JplO36QYgwN9PGYNhgZvoUSc9X2c80KVTi+GA=
github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399 h1:e/5i7d4oYZ+C1wj2THlRK+oAhjeS/TRQwMfkIuet3w0=
github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399/go.mod h1:LdwHTNJT99C5fTAzDz0ud328OgXz+gierycbcIx2fRs=
github.com/tklauser/go-sysconf v0.3.15 h1:VE89k0criAymJ/Os65CSn1IXaol+1wrsFHEB8Ol49K4=
vendor/github.com/onsi/ginkgo/v2/CHANGELOG.md
Generated Vendored
+6
View File
@@ -1,3 +1,9 @@
## 2.26.0
### Features
Ginkgo can now generate json-formatted reports that are compatible with the `go test` json format. Use `ginkgo --gojson-report=report.go.json`. This is not intended to be a replacement for Ginkgo's native json format which is more information rich and better models Ginkgo's test structure semantics.
## 2.25.3
### Fixes
vendor/github.com/onsi/ginkgo/v2/README.md
Generated Vendored
+10
View File
@@ -113,3 +113,13 @@ Ginkgo is MIT-Licensed
## Contributing
See [CONTRIBUTING.md](CONTRIBUTING.md)
## Sponsors
Sponsors commit to a [sponsorship](https://github.com/sponsors/onsi) for a year. If you're an organization that makes use of Ginkgo please consider becoming a sponsor!
<p style="font-size:21px; color:black;">Browser testing via
<a href="https://www.lambdatest.com/" target="_blank">
<img src="https://www.lambdatest.com/blue-logo.png" style="vertical-align: middle;" width="250" height="45" />
</a>
</p>
vendor/github.com/onsi/ginkgo/v2/ginkgo/internal/profiles_and_reports.go
Generated Vendored
+3
View File
@@ -90,6 +90,9 @@ func FinalizeProfilesAndReportsForSuites(suites TestSuites, cliConfig types.CLIC
if reporterConfig.JSONReport != "" {
reportFormats = append(reportFormats, reportFormat{ReportName: reporterConfig.JSONReport, GenerateFunc: reporters.GenerateJSONReport, MergeFunc: reporters.MergeAndCleanupJSONReports})
}
if reporterConfig.GoJSONReport != "" {
reportFormats = append(reportFormats, reportFormat{ReportName: reporterConfig.GoJSONReport, GenerateFunc: reporters.GenerateGoTestJSONReport, MergeFunc: reporters.MergeAndCleanupGoTestJSONReports})
}
if reporterConfig.JUnitReport != "" {
reportFormats = append(reportFormats, reportFormat{ReportName: reporterConfig.JUnitReport, GenerateFunc: reporters.GenerateJUnitReport, MergeFunc: reporters.MergeAndCleanupJUnitReports})
}
vendor/github.com/onsi/ginkgo/v2/ginkgo/internal/run.go
Generated Vendored
+6
View File
@@ -107,6 +107,9 @@ func runSerial(suite TestSuite, ginkgoConfig types.SuiteConfig, reporterConfig t
if reporterConfig.JSONReport != "" {
reporterConfig.JSONReport = AbsPathForGeneratedAsset(reporterConfig.JSONReport, suite, cliConfig, 0)
}
if reporterConfig.GoJSONReport != "" {
reporterConfig.GoJSONReport = AbsPathForGeneratedAsset(reporterConfig.GoJSONReport, suite, cliConfig, 0)
}
if reporterConfig.JUnitReport != "" {
reporterConfig.JUnitReport = AbsPathForGeneratedAsset(reporterConfig.JUnitReport, suite, cliConfig, 0)
}
@@ -179,6 +182,9 @@ func runParallel(suite TestSuite, ginkgoConfig types.SuiteConfig, reporterConfig
if reporterConfig.JSONReport != "" {
reporterConfig.JSONReport = AbsPathForGeneratedAsset(reporterConfig.JSONReport, suite, cliConfig, 0)
}
if reporterConfig.GoJSONReport != "" {
reporterConfig.GoJSONReport = AbsPathForGeneratedAsset(reporterConfig.GoJSONReport, suite, cliConfig, 0)
}
if reporterConfig.JUnitReport != "" {
reporterConfig.JUnitReport = AbsPathForGeneratedAsset(reporterConfig.JUnitReport, suite, cliConfig, 0)
}
vendor/github.com/onsi/ginkgo/v2/ginkgo/main.go
Generated Vendored
-1
View File
@@ -3,7 +3,6 @@ package main
import (
"fmt"
"os"
_ "go.uber.org/automaxprocs"
"github.com/onsi/ginkgo/v2/ginkgo/build"
"github.com/onsi/ginkgo/v2/ginkgo/command"
"github.com/onsi/ginkgo/v2/ginkgo/generators"
vendor/github.com/onsi/ginkgo/v2/ginkgo/maxprocs.go
Generated Vendored
+8
View File
@@ -0,0 +1,8 @@
//go:build !go1.25
// +build !go1.25
package main
import (
_ "go.uber.org/automaxprocs"
)
vendor/github.com/onsi/ginkgo/v2/internal/reporters/gojson.go
Generated Vendored
+158
View File
@@ -0,0 +1,158 @@
package reporters
import (
"errors"
"fmt"
"strings"
"time"
"github.com/onsi/ginkgo/v2/types"
"golang.org/x/tools/go/packages"
)
func ptr[T any](in T) *T {
return &in
}
type encoder interface {
Encode(v any) error
}
// gojsonEvent matches the format from go internals
// https://github.com/golang/go/blob/master/src/cmd/internal/test2json/test2json.go#L31-L41
// https://pkg.go.dev/cmd/test2json
type gojsonEvent struct {
Time *time.Time `json:",omitempty"`
Action GoJSONAction
Package string `json:",omitempty"`
Test string `json:",omitempty"`
Elapsed *float64 `json:",omitempty"`
Output *string `json:",omitempty"`
FailedBuild string `json:",omitempty"`
}
type GoJSONAction string
const (
// start - the test binary is about to be executed
GoJSONStart GoJSONAction = "start"
// run - the test has started running
GoJSONRun GoJSONAction = "run"
// pause - the test has been paused
GoJSONPause GoJSONAction = "pause"
// cont - the test has continued running
GoJSONCont GoJSONAction = "cont"
// pass - the test passed
GoJSONPass GoJSONAction = "pass"
// bench - the benchmark printed log output but did not fail
GoJSONBench GoJSONAction = "bench"
// fail - the test or benchmark failed
GoJSONFail GoJSONAction = "fail"
// output - the test printed output
GoJSONOutput GoJSONAction = "output"
// skip - the test was skipped or the package contained no tests
GoJSONSkip GoJSONAction = "skip"
)
func goJSONActionFromSpecState(state types.SpecState) GoJSONAction {
switch state {
case types.SpecStateInvalid:
return GoJSONFail
case types.SpecStatePending:
return GoJSONSkip
case types.SpecStateSkipped:
return GoJSONSkip
case types.SpecStatePassed:
return GoJSONPass
case types.SpecStateFailed:
return GoJSONFail
case types.SpecStateAborted:
return GoJSONFail
case types.SpecStatePanicked:
return GoJSONFail
case types.SpecStateInterrupted:
return GoJSONFail
case types.SpecStateTimedout:
return GoJSONFail
default:
panic("unexpected state should not happen")
}
}
// gojsonReport wraps types.Report and calcualtes extra fields requires by gojson
type gojsonReport struct {
o types.Report
// Extra calculated fields
goPkg string
elapsed float64
}
func newReport(in types.Report) *gojsonReport {
return &gojsonReport{
o: in,
}
}
func (r *gojsonReport) Fill() error {
// NOTE: could the types.Report include the go package name?
goPkg, err := suitePathToPkg(r.o.SuitePath)
if err != nil {
return err
}
r.goPkg = goPkg
r.elapsed = r.o.RunTime.Seconds()
return nil
}
// gojsonSpecReport wraps types.SpecReport and calculates extra fields required by gojson
type gojsonSpecReport struct {
o types.SpecReport
// extra calculated fields
testName string
elapsed float64
action GoJSONAction
}
func newSpecReport(in types.SpecReport) *gojsonSpecReport {
return &gojsonSpecReport{
o: in,
}
}
func (sr *gojsonSpecReport) Fill() error {
sr.elapsed = sr.o.RunTime.Seconds()
sr.testName = createTestName(sr.o)
sr.action = goJSONActionFromSpecState(sr.o.State)
return nil
}
func suitePathToPkg(dir string) (string, error) {
cfg := &packages.Config{
Mode: packages.NeedFiles | packages.NeedSyntax,
}
pkgs, err := packages.Load(cfg, dir)
if err != nil {
return "", err
}
if len(pkgs) != 1 {
return "", errors.New("error")
}
return pkgs[0].ID, nil
}
func createTestName(spec types.SpecReport) string {
name := fmt.Sprintf("[%s]", spec.LeafNodeType)
if spec.FullText() != "" {
name = name + " " + spec.FullText()
}
labels := spec.Labels()
if len(labels) > 0 {
name = name + " [" + strings.Join(labels, ", ") + "]"
}
semVerConstraints := spec.SemVerConstraints()
if len(semVerConstraints) > 0 {
name = name + " [" + strings.Join(semVerConstraints, ", ") + "]"
}
name = strings.TrimSpace(name)
return name
}
vendor/github.com/onsi/ginkgo/v2/internal/reporters/gojson_event_writer.go
Generated Vendored
+111
View File
@@ -0,0 +1,111 @@
package reporters
type GoJSONEventWriter struct {
enc encoder
specSystemErrFn specSystemExtractFn
specSystemOutFn specSystemExtractFn
}
func NewGoJSONEventWriter(enc encoder, errFn specSystemExtractFn, outFn specSystemExtractFn) *GoJSONEventWriter {
return &GoJSONEventWriter{
enc: enc,
specSystemErrFn: errFn,
specSystemOutFn: outFn,
}
}
func (r *GoJSONEventWriter) writeEvent(e *gojsonEvent) error {
return r.enc.Encode(e)
}
func (r *GoJSONEventWriter) WriteSuiteStart(report *gojsonReport) error {
e := &gojsonEvent{
Time: &report.o.StartTime,
Action: GoJSONStart,
Package: report.goPkg,
Output: nil,
FailedBuild: "",
}
return r.writeEvent(e)
}
func (r *GoJSONEventWriter) WriteSuiteResult(report *gojsonReport) error {
var action GoJSONAction
switch {
case report.o.PreRunStats.SpecsThatWillRun == 0:
action = GoJSONSkip
case report.o.SuiteSucceeded:
action = GoJSONPass
default:
action = GoJSONFail
}
e := &gojsonEvent{
Time: &report.o.EndTime,
Action: action,
Package: report.goPkg,
Output: nil,
FailedBuild: "",
Elapsed: ptr(report.elapsed),
}
return r.writeEvent(e)
}
func (r *GoJSONEventWriter) WriteSpecStart(report *gojsonReport, specReport *gojsonSpecReport) error {
e := &gojsonEvent{
Time: &specReport.o.StartTime,
Action: GoJSONRun,
Test: specReport.testName,
Package: report.goPkg,
Output: nil,
FailedBuild: "",
}
return r.writeEvent(e)
}
func (r *GoJSONEventWriter) WriteSpecOut(report *gojsonReport, specReport *gojsonSpecReport) error {
events := []*gojsonEvent{}
stdErr := r.specSystemErrFn(specReport.o)
if stdErr != "" {
events = append(events, &gojsonEvent{
Time: &specReport.o.EndTime,
Action: GoJSONOutput,
Test: specReport.testName,
Package: report.goPkg,
Output: ptr(stdErr),
FailedBuild: "",
})
}
stdOut := r.specSystemOutFn(specReport.o)
if stdOut != "" {
events = append(events, &gojsonEvent{
Time: &specReport.o.EndTime,
Action: GoJSONOutput,
Test: specReport.testName,
Package: report.goPkg,
Output: ptr(stdOut),
FailedBuild: "",
})
}
for _, ev := range events {
err := r.writeEvent(ev)
if err != nil {
return err
}
}
return nil
}
func (r *GoJSONEventWriter) WriteSpecResult(report *gojsonReport, specReport *gojsonSpecReport) error {
e := &gojsonEvent{
Time: &specReport.o.EndTime,
Action: specReport.action,
Test: specReport.testName,
Package: report.goPkg,
Elapsed: ptr(specReport.elapsed),
Output: nil,
FailedBuild: "",
}
return r.writeEvent(e)
}
vendor/github.com/onsi/ginkgo/v2/internal/reporters/gojson_reporter.go
Generated Vendored
+45
View File
@@ -0,0 +1,45 @@
package reporters
import (
"github.com/onsi/ginkgo/v2/types"
)
type GoJSONReporter struct {
ev *GoJSONEventWriter
}
type specSystemExtractFn func (spec types.SpecReport) string
func NewGoJSONReporter(enc encoder, errFn specSystemExtractFn, outFn specSystemExtractFn) *GoJSONReporter {
return &GoJSONReporter{
ev: NewGoJSONEventWriter(enc, errFn, outFn),
}
}
func (r *GoJSONReporter) Write(originalReport types.Report) error {
// suite start events
report := newReport(originalReport)
err := report.Fill()
if err != nil {
return err
}
r.ev.WriteSuiteStart(report)
for _, originalSpecReport := range originalReport.SpecReports {
specReport := newSpecReport(originalSpecReport)
err := specReport.Fill()
if err != nil {
return err
}
if specReport.o.LeafNodeType == types.NodeTypeIt {
// handle any It leaf node as a spec
r.ev.WriteSpecStart(report, specReport)
r.ev.WriteSpecOut(report, specReport)
r.ev.WriteSpecResult(report, specReport)
} else {
// handle any other leaf node as generic output
r.ev.WriteSpecOut(report, specReport)
}
}
r.ev.WriteSuiteResult(report)
return nil
}
vendor/github.com/onsi/ginkgo/v2/reporters/gojson_report.go
Generated Vendored
+61
View File
@@ -0,0 +1,61 @@
package reporters
import (
"encoding/json"
"fmt"
"os"
"path"
"github.com/onsi/ginkgo/v2/internal/reporters"
"github.com/onsi/ginkgo/v2/types"
)
// GenerateGoTestJSONReport produces a JSON-formatted in the test2json format used by `go test -json`
func GenerateGoTestJSONReport(report types.Report, destination string) error {
// walk report and generate test2json-compatible objects
// JSON-encode the objects into filename
if err := os.MkdirAll(path.Dir(destination), 0770); err != nil {
return err
}
f, err := os.Create(destination)
if err != nil {
return err
}
defer f.Close()
enc := json.NewEncoder(f)
r := reporters.NewGoJSONReporter(
enc,
systemErrForUnstructuredReporters,
systemOutForUnstructuredReporters,
)
return r.Write(report)
}
// MergeJSONReports produces a single JSON-formatted report at the passed in destination by merging the JSON-formatted reports provided in sources
// It skips over reports that fail to decode but reports on them via the returned messages []string
func MergeAndCleanupGoTestJSONReports(sources []string, destination string) ([]string, error) {
messages := []string{}
if err := os.MkdirAll(path.Dir(destination), 0770); err != nil {
return messages, err
}
f, err := os.Create(destination)
if err != nil {
return messages, err
}
defer f.Close()
for _, source := range sources {
data, err := os.ReadFile(source)
if err != nil {
messages = append(messages, fmt.Sprintf("Could not open %s:\n%s", source, err.Error()))
continue
}
_, err = f.Write(data)
if err != nil {
messages = append(messages, fmt.Sprintf("Could not write to %s:\n%s", destination, err.Error()))
continue
}
os.Remove(source)
}
return messages, nil
}
vendor/github.com/onsi/ginkgo/v2/reporting_dsl.go
Generated Vendored
+10 -1
View File
@@ -165,7 +165,7 @@ ReportAfterSuite nodes must be created at the top-level (i.e. not nested in a Co
When running in parallel, Ginkgo ensures that only one of the parallel nodes runs the ReportAfterSuite and that it is passed a report that is aggregated across
all parallel nodes
In addition to using ReportAfterSuite to programmatically generate suite reports, you can also generate JSON, JUnit, and Teamcity formatted reports using the --json-report, --junit-report, and --teamcity-report ginkgo CLI flags.
In addition to using ReportAfterSuite to programmatically generate suite reports, you can also generate JSON, GoJSON, JUnit, and Teamcity formatted reports using the --json-report, --gojson-report, --junit-report, and --teamcity-report ginkgo CLI flags.
You cannot nest any other Ginkgo nodes within a ReportAfterSuite node's closure.
You can learn more about ReportAfterSuite here: https://onsi.github.io/ginkgo/#generating-reports-programmatically
@@ -188,6 +188,12 @@ func registerReportAfterSuiteNodeForAutogeneratedReports(reporterConfig types.Re
Fail(fmt.Sprintf("Failed to generate JSON report:\n%s", err.Error()))
}
}
if reporterConfig.GoJSONReport != "" {
err := reporters.GenerateGoTestJSONReport(report, reporterConfig.GoJSONReport)
if err != nil {
Fail(fmt.Sprintf("Failed to generate Go JSON report:\n%s", err.Error()))
}
}
if reporterConfig.JUnitReport != "" {
err := reporters.GenerateJUnitReport(report, reporterConfig.JUnitReport)
if err != nil {
@@ -206,6 +212,9 @@ func registerReportAfterSuiteNodeForAutogeneratedReports(reporterConfig types.Re
if reporterConfig.JSONReport != "" {
flags = append(flags, "--json-report")
}
if reporterConfig.GoJSONReport != "" {
flags = append(flags, "--gojson-report")
}
if reporterConfig.JUnitReport != "" {
flags = append(flags, "--junit-report")
}
vendor/github.com/onsi/ginkgo/v2/types/config.go
Generated Vendored
+4 -1
View File
@@ -96,6 +96,7 @@ type ReporterConfig struct {
ForceNewlines bool
JSONReport string
GoJSONReport string
JUnitReport string
TeamcityReport string
}
@@ -112,7 +113,7 @@ func (rc ReporterConfig) Verbosity() VerbosityLevel {
}
func (rc ReporterConfig) WillGenerateReport() bool {
return rc.JSONReport != "" || rc.JUnitReport != "" || rc.TeamcityReport != ""
return rc.JSONReport != "" || rc.GoJSONReport != "" || rc.JUnitReport != "" || rc.TeamcityReport != ""
}
func NewDefaultReporterConfig() ReporterConfig {
@@ -359,6 +360,8 @@ var ReporterConfigFlags = GinkgoFlags{
{KeyPath: "R.JSONReport", Name: "json-report", UsageArgument: "filename.json", SectionKey: "output",
Usage: "If set, Ginkgo will generate a JSON-formatted test report at the specified location."},
{KeyPath: "R.GoJSONReport", Name: "gojson-report", UsageArgument: "filename.json", SectionKey: "output",
Usage: "If set, Ginkgo will generate a Go JSON-formatted test report at the specified location."},
{KeyPath: "R.JUnitReport", Name: "junit-report", UsageArgument: "filename.xml", SectionKey: "output", DeprecatedName: "reportFile", DeprecatedDocLink: "improved-reporting-infrastructure",
Usage: "If set, Ginkgo will generate a conformant junit test report in the specified file."},
{KeyPath: "R.TeamcityReport", Name: "teamcity-report", UsageArgument: "filename", SectionKey: "output",
vendor/github.com/onsi/ginkgo/v2/types/version.go
Generated Vendored
+1 -1
View File
@@ -1,3 +1,3 @@
package types
const VERSION = "2.25.3"
const VERSION = "2.26.0"
vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go
Generated Vendored
+236
View File
@@ -0,0 +1,236 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package gcexportdata provides functions for reading and writing
// export data, which is a serialized description of the API of a Go
// package including the names, kinds, types, and locations of all
// exported declarations.
//
// The standard Go compiler (cmd/compile) writes an export data file
// for each package it compiles, which it later reads when compiling
// packages that import the earlier one. The compiler must thus
// contain logic to both write and read export data.
// (See the "Export" section in the cmd/compile/README file.)
//
// The [Read] function in this package can read files produced by the
// compiler, producing [go/types] data structures. As a matter of
// policy, Read supports export data files produced by only the last
// two Go releases plus tip; see https://go.dev/issue/68898. The
// export data files produced by the compiler contain additional
// details related to generics, inlining, and other optimizations that
// cannot be decoded by the [Read] function.
//
// In files written by the compiler, the export data is not at the
// start of the file. Before calling Read, use [NewReader] to locate
// the desired portion of the file.
//
// The [Write] function in this package encodes the exported API of a
// Go package ([types.Package]) as a file. Such files can be later
// decoded by Read, but cannot be consumed by the compiler.
//
// # Future changes
//
// Although Read supports the formats written by both Write and the
// compiler, the two are quite different, and there is an open
// proposal (https://go.dev/issue/69491) to separate these APIs.
//
// Under that proposal, this package would ultimately provide only the
// Read operation for compiler export data, which must be defined in
// this module (golang.org/x/tools), not in the standard library, to
// avoid version skew for developer tools that need to read compiler
// export data both before and after a Go release, such as from Go
// 1.23 to Go 1.24. Because this package lives in the tools module,
// clients can update their version of the module some time before the
// Go 1.24 release and rebuild and redeploy their tools, which will
// then be able to consume both Go 1.23 and Go 1.24 export data files,
// so they will work before and after the Go update. (See discussion
// at https://go.dev/issue/15651.)
//
// The operations to import and export [go/types] data structures
// would be defined in the go/types package as Import and Export.
// [Write] would (eventually) delegate to Export,
// and [Read], when it detects a file produced by Export,
// would delegate to Import.
//
// # Deprecations
//
// The [NewImporter] and [Find] functions are deprecated and should
// not be used in new code. The [WriteBundle] and [ReadBundle]
// functions are experimental, and there is an open proposal to
// deprecate them (https://go.dev/issue/69573).
package gcexportdata
import (
"bufio"
"bytes"
"encoding/json"
"fmt"
"go/token"
"go/types"
"io"
"os/exec"
"golang.org/x/tools/internal/gcimporter"
)
// Find returns the name of an object (.o) or archive (.a) file
// containing type information for the specified import path,
// using the go command.
// If no file was found, an empty filename is returned.
//
// A relative srcDir is interpreted relative to the current working directory.
//
// Find also returns the package's resolved (canonical) import path,
// reflecting the effects of srcDir and vendoring on importPath.
//
// Deprecated: Use the higher-level API in golang.org/x/tools/go/packages,
// which is more efficient.
func Find(importPath, srcDir string) (filename, path string) {
cmd := exec.Command("go", "list", "-json", "-export", "--", importPath)
cmd.Dir = srcDir
out, err := cmd.Output()
if err != nil {
return "", ""
}
var data struct {
ImportPath string
Export string
}
json.Unmarshal(out, &data)
return data.Export, data.ImportPath
}
// NewReader returns a reader for the export data section of an object
// (.o) or archive (.a) file read from r. The new reader may provide
// additional trailing data beyond the end of the export data.
func NewReader(r io.Reader) (io.Reader, error) {
buf := bufio.NewReader(r)
size, err := gcimporter.FindExportData(buf)
if err != nil {
return nil, err
}
// We were given an archive and found the __.PKGDEF in it.
// This tells us the size of the export data, and we don't
// need to return the entire file.
return &io.LimitedReader{
R: buf,
N: size,
}, nil
}
// readAll works the same way as io.ReadAll, but avoids allocations and copies
// by preallocating a byte slice of the necessary size if the size is known up
// front. This is always possible when the input is an archive. In that case,
// NewReader will return the known size using an io.LimitedReader.
func readAll(r io.Reader) ([]byte, error) {
if lr, ok := r.(*io.LimitedReader); ok {
data := make([]byte, lr.N)
_, err := io.ReadFull(lr, data)
return data, err
}
return io.ReadAll(r)
}
// Read reads export data from in, decodes it, and returns type
// information for the package.
//
// Read is capable of reading export data produced by [Write] at the
// same source code version, or by the last two Go releases (plus tip)
// of the standard Go compiler. Reading files from older compilers may
// produce an error.
//
// The package path (effectively its linker symbol prefix) is
// specified by path, since unlike the package name, this information
// may not be recorded in the export data.
//
// File position information is added to fset.
//
// Read may inspect and add to the imports map to ensure that references
// within the export data to other packages are consistent. The caller
// must ensure that imports[path] does not exist, or exists but is
// incomplete (see types.Package.Complete), and Read inserts the
// resulting package into this map entry.
//
// On return, the state of the reader is undefined.
func Read(in io.Reader, fset *token.FileSet, imports map[string]*types.Package, path string) (*types.Package, error) {
data, err := readAll(in)
if err != nil {
return nil, fmt.Errorf("reading export data for %q: %v", path, err)
}
if bytes.HasPrefix(data, []byte("!<arch>")) {
return nil, fmt.Errorf("can't read export data for %q directly from an archive file (call gcexportdata.NewReader first to extract export data)", path)
}
// The indexed export format starts with an 'i'; the older
// binary export format starts with a 'c', 'd', or 'v'
// (from "version"). Select appropriate importer.
if len(data) > 0 {
switch data[0] {
case 'v', 'c', 'd':
// binary, produced by cmd/compile till go1.10
return nil, fmt.Errorf("binary (%c) import format is no longer supported", data[0])
case 'i':
// indexed, produced by cmd/compile till go1.19,
// and also by [Write].
//
// If proposal #69491 is accepted, go/types
// serialization will be implemented by
// types.Export, to which Write would eventually
// delegate (explicitly dropping any pretence at
// inter-version Write-Read compatibility).
// This [Read] function would delegate to types.Import
// when it detects that the file was produced by Export.
_, pkg, err := gcimporter.IImportData(fset, imports, data[1:], path)
return pkg, err
case 'u':
// unified, produced by cmd/compile since go1.20
_, pkg, err := gcimporter.UImportData(fset, imports, data[1:], path)
return pkg, err
default:
l := min(len(data), 10)
return nil, fmt.Errorf("unexpected export data with prefix %q for path %s", string(data[:l]), path)
}
}
return nil, fmt.Errorf("empty export data for %s", path)
}
// Write writes encoded type information for the specified package to out.
// The FileSet provides file position information for named objects.
func Write(out io.Writer, fset *token.FileSet, pkg *types.Package) error {
if _, err := io.WriteString(out, "i"); err != nil {
return err
}
return gcimporter.IExportData(out, fset, pkg)
}
// ReadBundle reads an export bundle from in, decodes it, and returns type
// information for the packages.
// File position information is added to fset.
//
// ReadBundle may inspect and add to the imports map to ensure that references
// within the export bundle to other packages are consistent.
//
// On return, the state of the reader is undefined.
//
// Experimental: This API is experimental and may change in the future.
func ReadBundle(in io.Reader, fset *token.FileSet, imports map[string]*types.Package) ([]*types.Package, error) {
data, err := readAll(in)
if err != nil {
return nil, fmt.Errorf("reading export bundle: %v", err)
}
return gcimporter.IImportBundle(fset, imports, data)
}
// WriteBundle writes encoded type information for the specified packages to out.
// The FileSet provides file position information for named objects.
//
// Experimental: This API is experimental and may change in the future.
func WriteBundle(out io.Writer, fset *token.FileSet, pkgs []*types.Package) error {
return gcimporter.IExportBundle(out, fset, pkgs)
}
vendor/golang.org/x/tools/go/gcexportdata/importer.go
Generated Vendored
+75
View File
@@ -0,0 +1,75 @@
// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gcexportdata
import (
"fmt"
"go/token"
"go/types"
"os"
)
// NewImporter returns a new instance of the types.Importer interface
// that reads type information from export data files written by gc.
// The Importer also satisfies types.ImporterFrom.
//
// Export data files are located using "go build" workspace conventions
// and the build.Default context.
//
// Use this importer instead of go/importer.For("gc", ...) to avoid the
// version-skew problems described in the documentation of this package,
// or to control the FileSet or access the imports map populated during
// package loading.
//
// Deprecated: Use the higher-level API in golang.org/x/tools/go/packages,
// which is more efficient.
func NewImporter(fset *token.FileSet, imports map[string]*types.Package) types.ImporterFrom {
return importer{fset, imports}
}
type importer struct {
fset *token.FileSet
imports map[string]*types.Package
}
func (imp importer) Import(importPath string) (*types.Package, error) {
return imp.ImportFrom(importPath, "", 0)
}
func (imp importer) ImportFrom(importPath, srcDir string, mode types.ImportMode) (_ *types.Package, err error) {
filename, path := Find(importPath, srcDir)
if filename == "" {
if importPath == "unsafe" {
// Even for unsafe, call Find first in case
// the package was vendored.
return types.Unsafe, nil
}
return nil, fmt.Errorf("can't find import: %s", importPath)
}
if pkg, ok := imp.imports[path]; ok && pkg.Complete() {
return pkg, nil // cache hit
}
// open file
f, err := os.Open(filename)
if err != nil {
return nil, err
}
defer func() {
f.Close()
if err != nil {
// add file name to error
err = fmt.Errorf("reading export data: %s: %v", filename, err)
}
}()
r, err := NewReader(f)
if err != nil {
return nil, err
}
return Read(r, imp.fset, imp.imports, path)
}
vendor/golang.org/x/tools/go/packages/doc.go
Generated Vendored
+253
View File
@@ -0,0 +1,253 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
/*
Package packages loads Go packages for inspection and analysis.
The [Load] function takes as input a list of patterns and returns a
list of [Package] values describing individual packages matched by those
patterns.
A [Config] specifies configuration options, the most important of which is
the [LoadMode], which controls the amount of detail in the loaded packages.
Load passes most patterns directly to the underlying build tool.
The default build tool is the go command.
Its supported patterns are described at
https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
Other build systems may be supported by providing a "driver";
see [The driver protocol].
All patterns with the prefix "query=", where query is a
non-empty string of letters from [a-z], are reserved and may be
interpreted as query operators.
Two query operators are currently supported: "file" and "pattern".
The query "file=path/to/file.go" matches the package or packages enclosing
the Go source file path/to/file.go. For example "file=~/go/src/fmt/print.go"
might return the packages "fmt" and "fmt [fmt.test]".
The query "pattern=string" causes "string" to be passed directly to
the underlying build tool. In most cases this is unnecessary,
but an application can use Load("pattern=" + x) as an escaping mechanism
to ensure that x is not interpreted as a query operator if it contains '='.
All other query operators are reserved for future use and currently
cause Load to report an error.
The Package struct provides basic information about the package, including
- ID, a unique identifier for the package in the returned set;
- GoFiles, the names of the package's Go source files;
- Imports, a map from source import strings to the Packages they name;
- Types, the type information for the package's exported symbols;
- Syntax, the parsed syntax trees for the package's source code; and
- TypesInfo, the result of a complete type-check of the package syntax trees.
(See the documentation for type Package for the complete list of fields
and more detailed descriptions.)
For example,
Load(nil, "bytes", "unicode...")
returns four Package structs describing the standard library packages
bytes, unicode, unicode/utf16, and unicode/utf8. Note that one pattern
can match multiple packages and that a package might be matched by
multiple patterns: in general it is not possible to determine which
packages correspond to which patterns.
Note that the list returned by Load contains only the packages matched
by the patterns. Their dependencies can be found by walking the import
graph using the Imports fields.
The Load function can be configured by passing a pointer to a Config as
the first argument. A nil Config is equivalent to the zero Config, which
causes Load to run in [LoadFiles] mode, collecting minimal information.
See the documentation for type Config for details.
As noted earlier, the Config.Mode controls the amount of detail
reported about the loaded packages. See the documentation for type LoadMode
for details.
Most tools should pass their command-line arguments (after any flags)
uninterpreted to Load, so that it can interpret them
according to the conventions of the underlying build system.
See the Example function for typical usage.
See also [golang.org/x/tools/go/packages/internal/linecount]
for an example application.
# The driver protocol
Load may be used to load Go packages even in Go projects that use
alternative build systems, by installing an appropriate "driver"
program for the build system and specifying its location in the
GOPACKAGESDRIVER environment variable.
For example,
https://github.com/bazelbuild/rules_go/wiki/Editor-and-tool-integration
explains how to use the driver for Bazel.
The driver program is responsible for interpreting patterns in its
preferred notation and reporting information about the packages that
those patterns identify. Drivers must also support the special "file="
and "pattern=" patterns described above.
The patterns are provided as positional command-line arguments. A
JSON-encoded [DriverRequest] message providing additional information
is written to the driver's standard input. The driver must write a
JSON-encoded [DriverResponse] message to its standard output. (This
message differs from the JSON schema produced by 'go list'.)
The value of the PWD environment variable seen by the driver process
is the preferred name of its working directory. (The working directory
may have other aliases due to symbolic links; see the comment on the
Dir field of [exec.Cmd] for related information.)
When the driver process emits in its response the name of a file
that is a descendant of this directory, it must use an absolute path
that has the value of PWD as a prefix, to ensure that the returned
filenames satisfy the original query.
*/
package packages // import "golang.org/x/tools/go/packages"
/*
Motivation and design considerations
The new package's design solves problems addressed by two existing
packages: go/build, which locates and describes packages, and
golang.org/x/tools/go/loader, which loads, parses and type-checks them.
The go/build.Package structure encodes too much of the 'go build' way
of organizing projects, leaving us in need of a data type that describes a
package of Go source code independent of the underlying build system.
We wanted something that works equally well with go build and vgo, and
also other build systems such as Bazel and Blaze, making it possible to
construct analysis tools that work in all these environments.
Tools such as errcheck and staticcheck were essentially unavailable to
the Go community at Google, and some of Google's internal tools for Go
are unavailable externally.
This new package provides a uniform way to obtain package metadata by
querying each of these build systems, optionally supporting their
preferred command-line notations for packages, so that tools integrate
neatly with users' build environments. The Metadata query function
executes an external query tool appropriate to the current workspace.
Loading packages always returns the complete import graph "all the way down",
even if all you want is information about a single package, because the query
mechanisms of all the build systems we currently support ({go,vgo} list, and
blaze/bazel aspect-based query) cannot provide detailed information
about one package without visiting all its dependencies too, so there is
no additional asymptotic cost to providing transitive information.
(This property might not be true of a hypothetical 5th build system.)
In calls to TypeCheck, all initial packages, and any package that
transitively depends on one of them, must be loaded from source.
Consider A->B->C->D->E: if A,C are initial, A,B,C must be loaded from
source; D may be loaded from export data, and E may not be loaded at all
(though it's possible that D's export data mentions it, so a
types.Package may be created for it and exposed.)
The old loader had a feature to suppress type-checking of function
bodies on a per-package basis, primarily intended to reduce the work of
obtaining type information for imported packages. Now that imports are
satisfied by export data, the optimization no longer seems necessary.
Despite some early attempts, the old loader did not exploit export data,
instead always using the equivalent of WholeProgram mode. This was due
to the complexity of mixing source and export data packages (now
resolved by the upward traversal mentioned above), and because export data
files were nearly always missing or stale. Now that 'go build' supports
caching, all the underlying build systems can guarantee to produce
export data in a reasonable (amortized) time.
Test "main" packages synthesized by the build system are now reported as
first-class packages, avoiding the need for clients (such as go/ssa) to
reinvent this generation logic.
One way in which go/packages is simpler than the old loader is in its
treatment of in-package tests. In-package tests are packages that
consist of all the files of the library under test, plus the test files.
The old loader constructed in-package tests by a two-phase process of
mutation called "augmentation": first it would construct and type check
all the ordinary library packages and type-check the packages that
depend on them; then it would add more (test) files to the package and
type-check again. This two-phase approach had four major problems:
1) in processing the tests, the loader modified the library package,
leaving no way for a client application to see both the test
package and the library package; one would mutate into the other.
2) because test files can declare additional methods on types defined in
the library portion of the package, the dispatch of method calls in
the library portion was affected by the presence of the test files.
This should have been a clue that the packages were logically
different.
3) this model of "augmentation" assumed at most one in-package test
per library package, which is true of projects using 'go build',
but not other build systems.
4) because of the two-phase nature of test processing, all packages that
import the library package had to be processed before augmentation,
forcing a "one-shot" API and preventing the client from calling Load
in several times in sequence as is now possible in WholeProgram mode.
(TypeCheck mode has a similar one-shot restriction for a different reason.)
Early drafts of this package supported "multi-shot" operation.
Although it allowed clients to make a sequence of calls (or concurrent
calls) to Load, building up the graph of Packages incrementally,
it was of marginal value: it complicated the API
(since it allowed some options to vary across calls but not others),
it complicated the implementation,
it cannot be made to work in Types mode, as explained above,
and it was less efficient than making one combined call (when this is possible).
Among the clients we have inspected, none made multiple calls to load
but could not be easily and satisfactorily modified to make only a single call.
However, applications changes may be required.
For example, the ssadump command loads the user-specified packages
and in addition the runtime package. It is tempting to simply append
"runtime" to the user-provided list, but that does not work if the user
specified an ad-hoc package such as [a.go b.go].
Instead, ssadump no longer requests the runtime package,
but seeks it among the dependencies of the user-specified packages,
and emits an error if it is not found.
Questions & Tasks
- Add GOARCH/GOOS?
They are not portable concepts, but could be made portable.
Our goal has been to allow users to express themselves using the conventions
of the underlying build system: if the build system honors GOARCH
during a build and during a metadata query, then so should
applications built atop that query mechanism.
Conversely, if the target architecture of the build is determined by
command-line flags, the application can pass the relevant
flags through to the build system using a command such as:
myapp -query_flag="--cpu=amd64" -query_flag="--os=darwin"
However, this approach is low-level, unwieldy, and non-portable.
GOOS and GOARCH seem important enough to warrant a dedicated option.
- How should we handle partial failures such as a mixture of good and
malformed patterns, existing and non-existent packages, successful and
failed builds, import failures, import cycles, and so on, in a call to
Load?
- Support bazel, blaze, and go1.10 list, not just go1.11 list.
- Handle (and test) various partial success cases, e.g.
a mixture of good packages and:
invalid patterns
nonexistent packages
empty packages
packages with malformed package or import declarations
unreadable files
import cycles
other parse errors
type errors
Make sure we record errors at the correct place in the graph.
- Missing packages among initial arguments are not reported.
Return bogus packages for them, like golist does.
- "undeclared name" errors (for example) are reported out of source file
order. I suspect this is due to the breadth-first resolution now used
by go/types. Is that a bug? Discuss with gri.
*/
vendor/golang.org/x/tools/go/packages/external.go
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package packages
// This file defines the protocol that enables an external "driver"
// tool to supply package metadata in place of 'go list'.
import (
"bytes"
"encoding/json"
"fmt"
"os"
"os/exec"
"slices"
"strings"
)
// DriverRequest defines the schema of a request for package metadata
// from an external driver program. The JSON-encoded DriverRequest
// message is provided to the driver program's standard input. The
// query patterns are provided as command-line arguments.
//
// See the package documentation for an overview.
type DriverRequest struct {
Mode LoadMode `json:"mode"`
// Env specifies the environment the underlying build system should be run in.
Env []string `json:"env"`
// BuildFlags are flags that should be passed to the underlying build system.
BuildFlags []string `json:"build_flags"`
// Tests specifies whether the patterns should also return test packages.
Tests bool `json:"tests"`
// Overlay maps file paths (relative to the driver's working directory)
// to the contents of overlay files (see Config.Overlay).
Overlay map[string][]byte `json:"overlay"`
}
// DriverResponse defines the schema of a response from an external
// driver program, providing the results of a query for package
// metadata. The driver program must write a JSON-encoded
// DriverResponse message to its standard output.
//
// See the package documentation for an overview.
type DriverResponse struct {
// NotHandled is returned if the request can't be handled by the current
// driver. If an external driver returns a response with NotHandled, the
// rest of the DriverResponse is ignored, and go/packages will fallback
// to the next driver. If go/packages is extended in the future to support
// lists of multiple drivers, go/packages will fall back to the next driver.
NotHandled bool
// Compiler and Arch are the arguments pass of types.SizesFor
// to get a types.Sizes to use when type checking.
Compiler string
Arch string
// Roots is the set of package IDs that make up the root packages.
// We have to encode this separately because when we encode a single package
// we cannot know if it is one of the roots as that requires knowledge of the
// graph it is part of.
Roots []string `json:",omitempty"`
// Packages is the full set of packages in the graph.
// The packages are not connected into a graph.
// The Imports if populated will be stubs that only have their ID set.
// Imports will be connected and then type and syntax information added in a
// later pass (see refine).
Packages []*Package
// GoVersion is the minor version number used by the driver
// (e.g. the go command on the PATH) when selecting .go files.
// Zero means unknown.
GoVersion int
}
// driver is the type for functions that query the build system for the
// packages named by the patterns.
type driver func(cfg *Config, patterns []string) (*DriverResponse, error)
// findExternalDriver returns the file path of a tool that supplies
// the build system package structure, or "" if not found.
// If GOPACKAGESDRIVER is set in the environment findExternalTool returns its
// value, otherwise it searches for a binary named gopackagesdriver on the PATH.
func findExternalDriver(cfg *Config) driver {
const toolPrefix = "GOPACKAGESDRIVER="
tool := ""
for _, env := range cfg.Env {
if val, ok := strings.CutPrefix(env, toolPrefix); ok {
tool = val
}
}
if tool != "" && tool == "off" {
return nil
}
if tool == "" {
var err error
tool, err = exec.LookPath("gopackagesdriver")
if err != nil {
return nil
}
}
return func(cfg *Config, patterns []string) (*DriverResponse, error) {
req, err := json.Marshal(DriverRequest{
Mode: cfg.Mode,
Env: cfg.Env,
BuildFlags: cfg.BuildFlags,
Tests: cfg.Tests,
Overlay: cfg.Overlay,
})
if err != nil {
return nil, fmt.Errorf("failed to encode message to driver tool: %v", err)
}
buf := new(bytes.Buffer)
stderr := new(bytes.Buffer)
cmd := exec.CommandContext(cfg.Context, tool, patterns...)
cmd.Dir = cfg.Dir
// The cwd gets resolved to the real path. On Darwin, where
// /tmp is a symlink, this breaks anything that expects the
// working directory to keep the original path, including the
// go command when dealing with modules.
//
// os.Getwd stdlib has a special feature where if the
// cwd and the PWD are the same node then it trusts
// the PWD, so by setting it in the env for the child
// process we fix up all the paths returned by the go
// command.
//
// (See similar trick in Invocation.run in ../../internal/gocommand/invoke.go)
cmd.Env = append(slices.Clip(cfg.Env), "PWD="+cfg.Dir)
cmd.Stdin = bytes.NewReader(req)
cmd.Stdout = buf
cmd.Stderr = stderr
if err := cmd.Run(); err != nil {
return nil, fmt.Errorf("%v: %v: %s", tool, err, cmd.Stderr)
}
if len(stderr.Bytes()) != 0 && os.Getenv("GOPACKAGESPRINTDRIVERERRORS") != "" {
fmt.Fprintf(os.Stderr, "%s stderr: <<%s>>\n", cmdDebugStr(cmd), stderr)
}
var response DriverResponse
if err := json.Unmarshal(buf.Bytes(), &response); err != nil {
return nil, err
}
return &response, nil
}
}
vendor/golang.org/x/tools/go/packages/golist.go
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vendor/golang.org/x/tools/go/packages/golist_overlay.go
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package packages
import (
"encoding/json"
"path/filepath"
"golang.org/x/tools/internal/gocommand"
)
// determineRootDirs returns a mapping from absolute directories that could
// contain code to their corresponding import path prefixes.
func (state *golistState) determineRootDirs() (map[string]string, error) {
env, err := state.getEnv()
if err != nil {
return nil, err
}
if env["GOMOD"] != "" {
state.rootsOnce.Do(func() {
state.rootDirs, state.rootDirsError = state.determineRootDirsModules()
})
} else {
state.rootsOnce.Do(func() {
state.rootDirs, state.rootDirsError = state.determineRootDirsGOPATH()
})
}
return state.rootDirs, state.rootDirsError
}
func (state *golistState) determineRootDirsModules() (map[string]string, error) {
// List all of the modules--the first will be the directory for the main
// module. Any replaced modules will also need to be treated as roots.
// Editing files in the module cache isn't a great idea, so we don't
// plan to ever support that.
out, err := state.invokeGo("list", "-m", "-json", "all")
if err != nil {
// 'go list all' will fail if we're outside of a module and
// GO111MODULE=on. Try falling back without 'all'.
var innerErr error
out, innerErr = state.invokeGo("list", "-m", "-json")
if innerErr != nil {
return nil, err
}
}
roots := map[string]string{}
modules := map[string]string{}
var i int
for dec := json.NewDecoder(out); dec.More(); {
mod := new(gocommand.ModuleJSON)
if err := dec.Decode(mod); err != nil {
return nil, err
}
if mod.Dir != "" && mod.Path != "" {
// This is a valid module; add it to the map.
absDir, err := state.cfg.abs(mod.Dir)
if err != nil {
return nil, err
}
modules[absDir] = mod.Path
// The first result is the main module.
if i == 0 || mod.Replace != nil && mod.Replace.Path != "" {
roots[absDir] = mod.Path
}
}
i++
}
return roots, nil
}
func (state *golistState) determineRootDirsGOPATH() (map[string]string, error) {
m := map[string]string{}
for _, dir := range filepath.SplitList(state.mustGetEnv()["GOPATH"]) {
absDir, err := filepath.Abs(dir)
if err != nil {
return nil, err
}
m[filepath.Join(absDir, "src")] = ""
}
return m, nil
}
vendor/golang.org/x/tools/go/packages/loadmode_string.go
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package packages
import (
"fmt"
"strings"
)
var modes = [...]struct {
mode LoadMode
name string
}{
{NeedName, "NeedName"},
{NeedFiles, "NeedFiles"},
{NeedCompiledGoFiles, "NeedCompiledGoFiles"},
{NeedImports, "NeedImports"},
{NeedDeps, "NeedDeps"},
{NeedExportFile, "NeedExportFile"},
{NeedTypes, "NeedTypes"},
{NeedSyntax, "NeedSyntax"},
{NeedTypesInfo, "NeedTypesInfo"},
{NeedTypesSizes, "NeedTypesSizes"},
{NeedForTest, "NeedForTest"},
{NeedModule, "NeedModule"},
{NeedEmbedFiles, "NeedEmbedFiles"},
{NeedEmbedPatterns, "NeedEmbedPatterns"},
{NeedTarget, "NeedTarget"},
}
func (mode LoadMode) String() string {
if mode == 0 {
return "LoadMode(0)"
}
var out []string
// named bits
for _, item := range modes {
if (mode & item.mode) != 0 {
mode ^= item.mode
out = append(out, item.name)
}
}
// unnamed residue
if mode != 0 {
if out == nil {
return fmt.Sprintf("LoadMode(%#x)", int(mode))
}
out = append(out, fmt.Sprintf("%#x", int(mode)))
}
if len(out) == 1 {
return out[0]
}
return "(" + strings.Join(out, "|") + ")"
}
vendor/golang.org/x/tools/go/packages/packages.go
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vendor/golang.org/x/tools/go/packages/visit.go
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package packages
import (
"fmt"
"os"
"sort"
)
// Visit visits all the packages in the import graph whose roots are
// pkgs, calling the optional pre function the first time each package
// is encountered (preorder), and the optional post function after a
// package's dependencies have been visited (postorder).
// The boolean result of pre(pkg) determines whether
// the imports of package pkg are visited.
func Visit(pkgs []*Package, pre func(*Package) bool, post func(*Package)) {
seen := make(map[*Package]bool)
var visit func(*Package)
visit = func(pkg *Package) {
if !seen[pkg] {
seen[pkg] = true
if pre == nil || pre(pkg) {
paths := make([]string, 0, len(pkg.Imports))
for path := range pkg.Imports {
paths = append(paths, path)
}
sort.Strings(paths) // Imports is a map, this makes visit stable
for _, path := range paths {
visit(pkg.Imports[path])
}
}
if post != nil {
post(pkg)
}
}
}
for _, pkg := range pkgs {
visit(pkg)
}
}
// PrintErrors prints to os.Stderr the accumulated errors of all
// packages in the import graph rooted at pkgs, dependencies first.
// PrintErrors returns the number of errors printed.
func PrintErrors(pkgs []*Package) int {
var n int
errModules := make(map[*Module]bool)
Visit(pkgs, nil, func(pkg *Package) {
for _, err := range pkg.Errors {
fmt.Fprintln(os.Stderr, err)
n++
}
// Print pkg.Module.Error once if present.
mod := pkg.Module
if mod != nil && mod.Error != nil && !errModules[mod] {
errModules[mod] = true
fmt.Fprintln(os.Stderr, mod.Error.Err)
n++
}
})
return n
}
vendor/golang.org/x/tools/go/types/objectpath/objectpath.go
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// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package objectpath defines a naming scheme for types.Objects
// (that is, named entities in Go programs) relative to their enclosing
// package.
//
// Type-checker objects are canonical, so they are usually identified by
// their address in memory (a pointer), but a pointer has meaning only
// within one address space. By contrast, objectpath names allow the
// identity of an object to be sent from one program to another,
// establishing a correspondence between types.Object variables that are
// distinct but logically equivalent.
//
// A single object may have multiple paths. In this example,
//
// type A struct{ X int }
// type B A
//
// the field X has two paths due to its membership of both A and B.
// The For(obj) function always returns one of these paths, arbitrarily
// but consistently.
package objectpath
import (
"fmt"
"go/types"
"strconv"
"strings"
"golang.org/x/tools/internal/aliases"
"golang.org/x/tools/internal/typesinternal"
)
// TODO(adonovan): think about generic aliases.
// A Path is an opaque name that identifies a types.Object
// relative to its package. Conceptually, the name consists of a
// sequence of destructuring operations applied to the package scope
// to obtain the original object.
// The name does not include the package itself.
type Path string
// Encoding
//
// An object path is a textual and (with training) human-readable encoding
// of a sequence of destructuring operators, starting from a types.Package.
// The sequences represent a path through the package/object/type graph.
// We classify these operators by their type:
//
// PO package->object Package.Scope.Lookup
// OT object->type Object.Type
// TT type->type Type.{Elem,Key,{,{,Recv}Type}Params,Results,Underlying,Rhs} [EKPRUTrCa]
// TO type->object Type.{At,Field,Method,Obj} [AFMO]
//
// All valid paths start with a package and end at an object
// and thus may be defined by the regular language:
//
// objectpath = PO (OT TT* TO)*
//
// The concrete encoding follows directly:
// - The only PO operator is Package.Scope.Lookup, which requires an identifier.
// - The only OT operator is Object.Type,
// which we encode as '.' because dot cannot appear in an identifier.
// - The TT operators are encoded as [EKPRUTrCa];
// two of these ({,Recv}TypeParams) require an integer operand,
// which is encoded as a string of decimal digits.
// - The TO operators are encoded as [AFMO];
// three of these (At,Field,Method) require an integer operand,
// which is encoded as a string of decimal digits.
// These indices are stable across different representations
// of the same package, even source and export data.
// The indices used are implementation specific and may not correspond to
// the argument to the go/types function.
//
// In the example below,
//
// package p
//
// type T interface {
// f() (a string, b struct{ X int })
// }
//
// field X has the path "T.UM0.RA1.F0",
// representing the following sequence of operations:
//
// p.Lookup("T") T
// .Type().Underlying().Method(0). f
// .Type().Results().At(1) b
// .Type().Field(0) X
//
// The encoding is not maximally compact---every R or P is
// followed by an A, for example---but this simplifies the
// encoder and decoder.
const (
// object->type operators
opType = '.' // .Type() (Object)
// type->type operators
opElem = 'E' // .Elem() (Pointer, Slice, Array, Chan, Map)
opKey = 'K' // .Key() (Map)
opParams = 'P' // .Params() (Signature)
opResults = 'R' // .Results() (Signature)
opUnderlying = 'U' // .Underlying() (Named)
opTypeParam = 'T' // .TypeParams.At(i) (Named, Signature)
opRecvTypeParam = 'r' // .RecvTypeParams.At(i) (Signature)
opConstraint = 'C' // .Constraint() (TypeParam)
opRhs = 'a' // .Rhs() (Alias)
// type->object operators
opAt = 'A' // .At(i) (Tuple)
opField = 'F' // .Field(i) (Struct)
opMethod = 'M' // .Method(i) (Named or Interface; not Struct: "promoted" names are ignored)
opObj = 'O' // .Obj() (Named, TypeParam)
)
// For is equivalent to new(Encoder).For(obj).
//
// It may be more efficient to reuse a single Encoder across several calls.
func For(obj types.Object) (Path, error) {
return new(Encoder).For(obj)
}
// An Encoder amortizes the cost of encoding the paths of multiple objects.
// The zero value of an Encoder is ready to use.
type Encoder struct {
scopeMemo map[*types.Scope][]types.Object // memoization of scopeObjects
}
// For returns the path to an object relative to its package,
// or an error if the object is not accessible from the package's Scope.
//
// The For function guarantees to return a path only for the following objects:
// - package-level types
// - exported package-level non-types
// - methods
// - parameter and result variables
// - struct fields
// These objects are sufficient to define the API of their package.
// The objects described by a package's export data are drawn from this set.
//
// The set of objects accessible from a package's Scope depends on
// whether the package was produced by type-checking syntax, or
// reading export data; the latter may have a smaller Scope since
// export data trims objects that are not reachable from an exported
// declaration. For example, the For function will return a path for
// an exported method of an unexported type that is not reachable
// from any public declaration; this path will cause the Object
// function to fail if called on a package loaded from export data.
// TODO(adonovan): is this a bug or feature? Should this package
// compute accessibility in the same way?
//
// For does not return a path for predeclared names, imported package
// names, local names, and unexported package-level names (except
// types).
//
// Example: given this definition,
//
// package p
//
// type T interface {
// f() (a string, b struct{ X int })
// }
//
// For(X) would return a path that denotes the following sequence of operations:
//
// p.Scope().Lookup("T") (TypeName T)
// .Type().Underlying().Method(0). (method Func f)
// .Type().Results().At(1) (field Var b)
// .Type().Field(0) (field Var X)
//
// where p is the package (*types.Package) to which X belongs.
func (enc *Encoder) For(obj types.Object) (Path, error) {
pkg := obj.Pkg()
// This table lists the cases of interest.
//
// Object Action
// ------ ------
// nil reject
// builtin reject
// pkgname reject
// label reject
// var
// package-level accept
// func param/result accept
// local reject
// struct field accept
// const
// package-level accept
// local reject
// func
// package-level accept
// init functions reject
// concrete method accept
// interface method accept
// type
// package-level accept
// local reject
//
// The only accessible package-level objects are members of pkg itself.
//
// The cases are handled in four steps:
//
// 1. reject nil and builtin
// 2. accept package-level objects
// 3. reject obviously invalid objects
// 4. search the API for the path to the param/result/field/method.
// 1. reference to nil or builtin?
if pkg == nil {
return "", fmt.Errorf("predeclared %s has no path", obj)
}
scope := pkg.Scope()
// 2. package-level object?
if scope.Lookup(obj.Name()) == obj {
// Only exported objects (and non-exported types) have a path.
// Non-exported types may be referenced by other objects.
if _, ok := obj.(*types.TypeName); !ok && !obj.Exported() {
return "", fmt.Errorf("no path for non-exported %v", obj)
}
return Path(obj.Name()), nil
}
// 3. Not a package-level object.
// Reject obviously non-viable cases.
switch obj := obj.(type) {
case *types.TypeName:
if _, ok := types.Unalias(obj.Type()).(*types.TypeParam); !ok {
// With the exception of type parameters, only package-level type names
// have a path.
return "", fmt.Errorf("no path for %v", obj)
}
case *types.Const, // Only package-level constants have a path.
*types.Label, // Labels are function-local.
*types.PkgName: // PkgNames are file-local.
return "", fmt.Errorf("no path for %v", obj)
case *types.Var:
// Could be:
// - a field (obj.IsField())
// - a func parameter or result
// - a local var.
// Sadly there is no way to distinguish
// a param/result from a local
// so we must proceed to the find.
case *types.Func:
// A func, if not package-level, must be a method.
if recv := obj.Type().(*types.Signature).Recv(); recv == nil {
return "", fmt.Errorf("func is not a method: %v", obj)
}
if path, ok := enc.concreteMethod(obj); ok {
// Fast path for concrete methods that avoids looping over scope.
return path, nil
}
default:
panic(obj)
}
// 4. Search the API for the path to the var (field/param/result) or method.
// First inspect package-level named types.
// In the presence of path aliases, these give
// the best paths because non-types may
// refer to types, but not the reverse.
empty := make([]byte, 0, 48) // initial space
objs := enc.scopeObjects(scope)
for _, o := range objs {
tname, ok := o.(*types.TypeName)
if !ok {
continue // handle non-types in second pass
}
path := append(empty, o.Name()...)
path = append(path, opType)
T := o.Type()
if alias, ok := T.(*types.Alias); ok {
if r := findTypeParam(obj, aliases.TypeParams(alias), path, opTypeParam); r != nil {
return Path(r), nil
}
if r := find(obj, aliases.Rhs(alias), append(path, opRhs)); r != nil {
return Path(r), nil
}
} else if tname.IsAlias() {
// legacy alias
if r := find(obj, T, path); r != nil {
return Path(r), nil
}
} else if named, ok := T.(*types.Named); ok {
// defined (named) type
if r := findTypeParam(obj, named.TypeParams(), path, opTypeParam); r != nil {
return Path(r), nil
}
if r := find(obj, named.Underlying(), append(path, opUnderlying)); r != nil {
return Path(r), nil
}
}
}
// Then inspect everything else:
// non-types, and declared methods of defined types.
for _, o := range objs {
path := append(empty, o.Name()...)
if _, ok := o.(*types.TypeName); !ok {
if o.Exported() {
// exported non-type (const, var, func)
if r := find(obj, o.Type(), append(path, opType)); r != nil {
return Path(r), nil
}
}
continue
}
// Inspect declared methods of defined types.
if T, ok := types.Unalias(o.Type()).(*types.Named); ok {
path = append(path, opType)
// The method index here is always with respect
// to the underlying go/types data structures,
// which ultimately derives from source order
// and must be preserved by export data.
for i := 0; i < T.NumMethods(); i++ {
m := T.Method(i)
path2 := appendOpArg(path, opMethod, i)
if m == obj {
return Path(path2), nil // found declared method
}
if r := find(obj, m.Type(), append(path2, opType)); r != nil {
return Path(r), nil
}
}
}
}
return "", fmt.Errorf("can't find path for %v in %s", obj, pkg.Path())
}
func appendOpArg(path []byte, op byte, arg int) []byte {
path = append(path, op)
path = strconv.AppendInt(path, int64(arg), 10)
return path
}
// concreteMethod returns the path for meth, which must have a non-nil receiver.
// The second return value indicates success and may be false if the method is
// an interface method or if it is an instantiated method.
//
// This function is just an optimization that avoids the general scope walking
// approach. You are expected to fall back to the general approach if this
// function fails.
func (enc *Encoder) concreteMethod(meth *types.Func) (Path, bool) {
// Concrete methods can only be declared on package-scoped named types. For
// that reason we can skip the expensive walk over the package scope: the
// path will always be package -> named type -> method. We can trivially get
// the type name from the receiver, and only have to look over the type's
// methods to find the method index.
//
// Methods on generic types require special consideration, however. Consider
// the following package:
//
// L1: type S[T any] struct{}
// L2: func (recv S[A]) Foo() { recv.Bar() }
// L3: func (recv S[B]) Bar() { }
// L4: type Alias = S[int]
// L5: func _[T any]() { var s S[int]; s.Foo() }
//
// The receivers of methods on generic types are instantiations. L2 and L3
// instantiate S with the type-parameters A and B, which are scoped to the
// respective methods. L4 and L5 each instantiate S with int. Each of these
// instantiations has its own method set, full of methods (and thus objects)
// with receivers whose types are the respective instantiations. In other
// words, we have
//
// S[A].Foo, S[A].Bar
// S[B].Foo, S[B].Bar
// S[int].Foo, S[int].Bar
//
// We may thus be trying to produce object paths for any of these objects.
//
// S[A].Foo and S[B].Bar are the origin methods, and their paths are S.Foo
// and S.Bar, which are the paths that this function naturally produces.
//
// S[A].Bar, S[B].Foo, and both methods on S[int] are instantiations that
// don't correspond to the origin methods. For S[int], this is significant.
// The most precise object path for S[int].Foo, for example, is Alias.Foo,
// not S.Foo. Our function, however, would produce S.Foo, which would
// resolve to a different object.
//
// For S[A].Bar and S[B].Foo it could be argued that S.Bar and S.Foo are
// still the correct paths, since only the origin methods have meaningful
// paths. But this is likely only true for trivial cases and has edge cases.
// Since this function is only an optimization, we err on the side of giving
// up, deferring to the slower but definitely correct algorithm. Most users
// of objectpath will only be giving us origin methods, anyway, as referring
// to instantiated methods is usually not useful.
if meth.Origin() != meth {
return "", false
}
_, named := typesinternal.ReceiverNamed(meth.Type().(*types.Signature).Recv())
if named == nil {
return "", false
}
if types.IsInterface(named) {
// Named interfaces don't have to be package-scoped
//
// TODO(dominikh): opt: if scope.Lookup(name) == named, then we can apply this optimization to interface
// methods, too, I think.
return "", false
}
// Preallocate space for the name, opType, opMethod, and some digits.
name := named.Obj().Name()
path := make([]byte, 0, len(name)+8)
path = append(path, name...)
path = append(path, opType)
// Method indices are w.r.t. the go/types data structures,
// ultimately deriving from source order,
// which is preserved by export data.
for i := 0; i < named.NumMethods(); i++ {
if named.Method(i) == meth {
path = appendOpArg(path, opMethod, i)
return Path(path), true
}
}
// Due to golang/go#59944, go/types fails to associate the receiver with
// certain methods on cgo types.
//
// TODO(rfindley): replace this panic once golang/go#59944 is fixed in all Go
// versions gopls supports.
return "", false
// panic(fmt.Sprintf("couldn't find method %s on type %s; methods: %#v", meth, named, enc.namedMethods(named)))
}
// find finds obj within type T, returning the path to it, or nil if not found.
//
// The seen map is used to short circuit cycles through type parameters. If
// nil, it will be allocated as necessary.
//
// The seenMethods map is used internally to short circuit cycles through
// interface methods, such as occur in the following example:
//
// type I interface { f() interface{I} }
//
// See golang/go#68046 for details.
func find(obj types.Object, T types.Type, path []byte) []byte {
return (&finder{obj: obj}).find(T, path)
}
// finder closes over search state for a call to find.
type finder struct {
obj types.Object // the sought object
seenTParamNames map[*types.TypeName]bool // for cycle breaking through type parameters
seenMethods map[*types.Func]bool // for cycle breaking through recursive interfaces
}
func (f *finder) find(T types.Type, path []byte) []byte {
switch T := T.(type) {
case *types.Alias:
return f.find(types.Unalias(T), path)
case *types.Basic, *types.Named:
// Named types belonging to pkg were handled already,
// so T must belong to another package. No path.
return nil
case *types.Pointer:
return f.find(T.Elem(), append(path, opElem))
case *types.Slice:
return f.find(T.Elem(), append(path, opElem))
case *types.Array:
return f.find(T.Elem(), append(path, opElem))
case *types.Chan:
return f.find(T.Elem(), append(path, opElem))
case *types.Map:
if r := f.find(T.Key(), append(path, opKey)); r != nil {
return r
}
return f.find(T.Elem(), append(path, opElem))
case *types.Signature:
if r := f.findTypeParam(T.RecvTypeParams(), path, opRecvTypeParam); r != nil {
return r
}
if r := f.findTypeParam(T.TypeParams(), path, opTypeParam); r != nil {
return r
}
if r := f.find(T.Params(), append(path, opParams)); r != nil {
return r
}
return f.find(T.Results(), append(path, opResults))
case *types.Struct:
for i := 0; i < T.NumFields(); i++ {
fld := T.Field(i)
path2 := appendOpArg(path, opField, i)
if fld == f.obj {
return path2 // found field var
}
if r := f.find(fld.Type(), append(path2, opType)); r != nil {
return r
}
}
return nil
case *types.Tuple:
for i := 0; i < T.Len(); i++ {
v := T.At(i)
path2 := appendOpArg(path, opAt, i)
if v == f.obj {
return path2 // found param/result var
}
if r := f.find(v.Type(), append(path2, opType)); r != nil {
return r
}
}
return nil
case *types.Interface:
for i := 0; i < T.NumMethods(); i++ {
m := T.Method(i)
if f.seenMethods[m] {
return nil
}
path2 := appendOpArg(path, opMethod, i)
if m == f.obj {
return path2 // found interface method
}
if f.seenMethods == nil {
f.seenMethods = make(map[*types.Func]bool)
}
f.seenMethods[m] = true
if r := f.find(m.Type(), append(path2, opType)); r != nil {
return r
}
}
return nil
case *types.TypeParam:
name := T.Obj()
if f.seenTParamNames[name] {
return nil
}
if name == f.obj {
return append(path, opObj)
}
if f.seenTParamNames == nil {
f.seenTParamNames = make(map[*types.TypeName]bool)
}
f.seenTParamNames[name] = true
if r := f.find(T.Constraint(), append(path, opConstraint)); r != nil {
return r
}
return nil
}
panic(T)
}
func findTypeParam(obj types.Object, list *types.TypeParamList, path []byte, op byte) []byte {
return (&finder{obj: obj}).findTypeParam(list, path, op)
}
func (f *finder) findTypeParam(list *types.TypeParamList, path []byte, op byte) []byte {
for i := 0; i < list.Len(); i++ {
tparam := list.At(i)
path2 := appendOpArg(path, op, i)
if r := f.find(tparam, path2); r != nil {
return r
}
}
return nil
}
// Object returns the object denoted by path p within the package pkg.
func Object(pkg *types.Package, p Path) (types.Object, error) {
pathstr := string(p)
if pathstr == "" {
return nil, fmt.Errorf("empty path")
}
var pkgobj, suffix string
if dot := strings.IndexByte(pathstr, opType); dot < 0 {
pkgobj = pathstr
} else {
pkgobj = pathstr[:dot]
suffix = pathstr[dot:] // suffix starts with "."
}
obj := pkg.Scope().Lookup(pkgobj)
if obj == nil {
return nil, fmt.Errorf("package %s does not contain %q", pkg.Path(), pkgobj)
}
// abstraction of *types.{Pointer,Slice,Array,Chan,Map}
type hasElem interface {
Elem() types.Type
}
// abstraction of *types.{Named,Signature}
type hasTypeParams interface {
TypeParams() *types.TypeParamList
}
// abstraction of *types.{Alias,Named,TypeParam}
type hasObj interface {
Obj() *types.TypeName
}
// The loop state is the pair (t, obj),
// exactly one of which is non-nil, initially obj.
// All suffixes start with '.' (the only object->type operation),
// followed by optional type->type operations,
// then a type->object operation.
// The cycle then repeats.
var t types.Type
for suffix != "" {
code := suffix[0]
suffix = suffix[1:]
// Codes [AFMTr] have an integer operand.
var index int
switch code {
case opAt, opField, opMethod, opTypeParam, opRecvTypeParam:
rest := strings.TrimLeft(suffix, "0123456789")
numerals := suffix[:len(suffix)-len(rest)]
suffix = rest
i, err := strconv.Atoi(numerals)
if err != nil {
return nil, fmt.Errorf("invalid path: bad numeric operand %q for code %q", numerals, code)
}
index = int(i)
case opObj:
// no operand
default:
// The suffix must end with a type->object operation.
if suffix == "" {
return nil, fmt.Errorf("invalid path: ends with %q, want [AFMO]", code)
}
}
if code == opType {
if t != nil {
return nil, fmt.Errorf("invalid path: unexpected %q in type context", opType)
}
t = obj.Type()
obj = nil
continue
}
if t == nil {
return nil, fmt.Errorf("invalid path: code %q in object context", code)
}
// Inv: t != nil, obj == nil
t = types.Unalias(t)
switch code {
case opElem:
hasElem, ok := t.(hasElem) // Pointer, Slice, Array, Chan, Map
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want pointer, slice, array, chan or map)", code, t, t)
}
t = hasElem.Elem()
case opKey:
mapType, ok := t.(*types.Map)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want map)", code, t, t)
}
t = mapType.Key()
case opParams:
sig, ok := t.(*types.Signature)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want signature)", code, t, t)
}
t = sig.Params()
case opResults:
sig, ok := t.(*types.Signature)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want signature)", code, t, t)
}
t = sig.Results()
case opUnderlying:
named, ok := t.(*types.Named)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want named)", code, t, t)
}
t = named.Underlying()
case opRhs:
if alias, ok := t.(*types.Alias); ok {
t = aliases.Rhs(alias)
} else if false && aliases.Enabled() {
// The Enabled check is too expensive, so for now we
// simply assume that aliases are not enabled.
// TODO(adonovan): replace with "if true {" when go1.24 is assured.
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want alias)", code, t, t)
}
case opTypeParam:
hasTypeParams, ok := t.(hasTypeParams) // Named, Signature
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want named or signature)", code, t, t)
}
tparams := hasTypeParams.TypeParams()
if n := tparams.Len(); index >= n {
return nil, fmt.Errorf("tuple index %d out of range [0-%d)", index, n)
}
t = tparams.At(index)
case opRecvTypeParam:
sig, ok := t.(*types.Signature) // Signature
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want signature)", code, t, t)
}
rtparams := sig.RecvTypeParams()
if n := rtparams.Len(); index >= n {
return nil, fmt.Errorf("tuple index %d out of range [0-%d)", index, n)
}
t = rtparams.At(index)
case opConstraint:
tparam, ok := t.(*types.TypeParam)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want type parameter)", code, t, t)
}
t = tparam.Constraint()
case opAt:
tuple, ok := t.(*types.Tuple)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want tuple)", code, t, t)
}
if n := tuple.Len(); index >= n {
return nil, fmt.Errorf("tuple index %d out of range [0-%d)", index, n)
}
obj = tuple.At(index)
t = nil
case opField:
structType, ok := t.(*types.Struct)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want struct)", code, t, t)
}
if n := structType.NumFields(); index >= n {
return nil, fmt.Errorf("field index %d out of range [0-%d)", index, n)
}
obj = structType.Field(index)
t = nil
case opMethod:
switch t := t.(type) {
case *types.Interface:
if index >= t.NumMethods() {
return nil, fmt.Errorf("method index %d out of range [0-%d)", index, t.NumMethods())
}
obj = t.Method(index) // Id-ordered
case *types.Named:
if index >= t.NumMethods() {
return nil, fmt.Errorf("method index %d out of range [0-%d)", index, t.NumMethods())
}
obj = t.Method(index)
default:
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want interface or named)", code, t, t)
}
t = nil
case opObj:
hasObj, ok := t.(hasObj)
if !ok {
return nil, fmt.Errorf("cannot apply %q to %s (got %T, want named or type param)", code, t, t)
}
obj = hasObj.Obj()
t = nil
default:
return nil, fmt.Errorf("invalid path: unknown code %q", code)
}
}
if obj == nil {
panic(p) // path does not end in an object-valued operator
}
if obj.Pkg() != pkg {
return nil, fmt.Errorf("path denotes %s, which belongs to a different package", obj)
}
return obj, nil // success
}
// scopeObjects is a memoization of scope objects.
// Callers must not modify the result.
func (enc *Encoder) scopeObjects(scope *types.Scope) []types.Object {
m := enc.scopeMemo
if m == nil {
m = make(map[*types.Scope][]types.Object)
enc.scopeMemo = m
}
objs, ok := m[scope]
if !ok {
names := scope.Names() // allocates and sorts
objs = make([]types.Object, len(names))
for i, name := range names {
objs[i] = scope.Lookup(name)
}
m[scope] = objs
}
return objs
}
vendor/golang.org/x/tools/go/types/typeutil/callee.go
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+85
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@@ -0,0 +1,85 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeutil
import (
"go/ast"
"go/types"
_ "unsafe" // for linkname
)
// Callee returns the named target of a function call, if any:
// a function, method, builtin, or variable.
//
// Functions and methods may potentially have type parameters.
//
// Note: for calls of instantiated functions and methods, Callee returns
// the corresponding generic function or method on the generic type.
func Callee(info *types.Info, call *ast.CallExpr) types.Object {
obj := info.Uses[usedIdent(info, call.Fun)]
if obj == nil {
return nil
}
if _, ok := obj.(*types.TypeName); ok {
return nil
}
return obj
}
// StaticCallee returns the target (function or method) of a static function
// call, if any. It returns nil for calls to builtins.
//
// Note: for calls of instantiated functions and methods, StaticCallee returns
// the corresponding generic function or method on the generic type.
func StaticCallee(info *types.Info, call *ast.CallExpr) *types.Func {
obj := info.Uses[usedIdent(info, call.Fun)]
fn, _ := obj.(*types.Func)
if fn == nil || interfaceMethod(fn) {
return nil
}
return fn
}
// usedIdent is the implementation of [internal/typesinternal.UsedIdent].
// It returns the identifier associated with e.
// See typesinternal.UsedIdent for a fuller description.
// This function should live in typesinternal, but cannot because it would
// create an import cycle.
//
//go:linkname usedIdent golang.org/x/tools/go/types/typeutil.usedIdent
func usedIdent(info *types.Info, e ast.Expr) *ast.Ident {
if info.Types == nil || info.Uses == nil {
panic("one of info.Types or info.Uses is nil; both must be populated")
}
// Look through type instantiation if necessary.
switch d := ast.Unparen(e).(type) {
case *ast.IndexExpr:
if info.Types[d.Index].IsType() {
e = d.X
}
case *ast.IndexListExpr:
e = d.X
}
switch e := ast.Unparen(e).(type) {
// info.Uses always has the object we want, even for selector expressions.
// We don't need info.Selections.
// See go/types/recording.go:recordSelection.
case *ast.Ident:
return e
case *ast.SelectorExpr:
return e.Sel
}
return nil
}
// interfaceMethod reports whether its argument is a method of an interface.
// This function should live in typesinternal, but cannot because it would create an import cycle.
//
//go:linkname interfaceMethod golang.org/x/tools/go/types/typeutil.interfaceMethod
func interfaceMethod(f *types.Func) bool {
recv := f.Signature().Recv()
return recv != nil && types.IsInterface(recv.Type())
}
vendor/golang.org/x/tools/go/types/typeutil/imports.go
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+30
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@@ -0,0 +1,30 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeutil
import "go/types"
// Dependencies returns all dependencies of the specified packages.
//
// Dependent packages appear in topological order: if package P imports
// package Q, Q appears earlier than P in the result.
// The algorithm follows import statements in the order they
// appear in the source code, so the result is a total order.
func Dependencies(pkgs ...*types.Package) []*types.Package {
var result []*types.Package
seen := make(map[*types.Package]bool)
var visit func(pkgs []*types.Package)
visit = func(pkgs []*types.Package) {
for _, p := range pkgs {
if !seen[p] {
seen[p] = true
visit(p.Imports())
result = append(result, p)
}
}
}
visit(pkgs)
return result
}
vendor/golang.org/x/tools/go/types/typeutil/map.go
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+475
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@@ -0,0 +1,475 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package typeutil defines various utilities for types, such as [Map],
// a hash table that maps [types.Type] to any value.
package typeutil
import (
"bytes"
"fmt"
"go/types"
"hash/maphash"
"unsafe"
"golang.org/x/tools/internal/typeparams"
)
// Map is a hash-table-based mapping from types (types.Type) to
// arbitrary values. The concrete types that implement
// the Type interface are pointers. Since they are not canonicalized,
// == cannot be used to check for equivalence, and thus we cannot
// simply use a Go map.
//
// Just as with map[K]V, a nil *Map is a valid empty map.
//
// Read-only map operations ([Map.At], [Map.Len], and so on) may
// safely be called concurrently.
//
// TODO(adonovan): deprecate in favor of https://go.dev/issues/69420
// and 69559, if the latter proposals for a generic hash-map type and
// a types.Hash function are accepted.
type Map struct {
table map[uint32][]entry // maps hash to bucket; entry.key==nil means unused
length int // number of map entries
}
// entry is an entry (key/value association) in a hash bucket.
type entry struct {
key types.Type
value any
}
// SetHasher has no effect.
//
// It is a relic of an optimization that is no longer profitable. Do
// not use [Hasher], [MakeHasher], or [SetHasher] in new code.
func (m *Map) SetHasher(Hasher) {}
// Delete removes the entry with the given key, if any.
// It returns true if the entry was found.
func (m *Map) Delete(key types.Type) bool {
if m != nil && m.table != nil {
hash := hash(key)
bucket := m.table[hash]
for i, e := range bucket {
if e.key != nil && types.Identical(key, e.key) {
// We can't compact the bucket as it
// would disturb iterators.
bucket[i] = entry{}
m.length--
return true
}
}
}
return false
}
// At returns the map entry for the given key.
// The result is nil if the entry is not present.
func (m *Map) At(key types.Type) any {
if m != nil && m.table != nil {
for _, e := range m.table[hash(key)] {
if e.key != nil && types.Identical(key, e.key) {
return e.value
}
}
}
return nil
}
// Set sets the map entry for key to val,
// and returns the previous entry, if any.
func (m *Map) Set(key types.Type, value any) (prev any) {
if m.table != nil {
hash := hash(key)
bucket := m.table[hash]
var hole *entry
for i, e := range bucket {
if e.key == nil {
hole = &bucket[i]
} else if types.Identical(key, e.key) {
prev = e.value
bucket[i].value = value
return
}
}
if hole != nil {
*hole = entry{key, value} // overwrite deleted entry
} else {
m.table[hash] = append(bucket, entry{key, value})
}
} else {
hash := hash(key)
m.table = map[uint32][]entry{hash: {entry{key, value}}}
}
m.length++
return
}
// Len returns the number of map entries.
func (m *Map) Len() int {
if m != nil {
return m.length
}
return 0
}
// Iterate calls function f on each entry in the map in unspecified order.
//
// If f should mutate the map, Iterate provides the same guarantees as
// Go maps: if f deletes a map entry that Iterate has not yet reached,
// f will not be invoked for it, but if f inserts a map entry that
// Iterate has not yet reached, whether or not f will be invoked for
// it is unspecified.
func (m *Map) Iterate(f func(key types.Type, value any)) {
if m != nil {
for _, bucket := range m.table {
for _, e := range bucket {
if e.key != nil {
f(e.key, e.value)
}
}
}
}
}
// Keys returns a new slice containing the set of map keys.
// The order is unspecified.
func (m *Map) Keys() []types.Type {
keys := make([]types.Type, 0, m.Len())
m.Iterate(func(key types.Type, _ any) {
keys = append(keys, key)
})
return keys
}
func (m *Map) toString(values bool) string {
if m == nil {
return "{}"
}
var buf bytes.Buffer
fmt.Fprint(&buf, "{")
sep := ""
m.Iterate(func(key types.Type, value any) {
fmt.Fprint(&buf, sep)
sep = ", "
fmt.Fprint(&buf, key)
if values {
fmt.Fprintf(&buf, ": %q", value)
}
})
fmt.Fprint(&buf, "}")
return buf.String()
}
// String returns a string representation of the map's entries.
// Values are printed using fmt.Sprintf("%v", v).
// Order is unspecified.
func (m *Map) String() string {
return m.toString(true)
}
// KeysString returns a string representation of the map's key set.
// Order is unspecified.
func (m *Map) KeysString() string {
return m.toString(false)
}
// -- Hasher --
// hash returns the hash of type t.
// TODO(adonovan): replace by types.Hash when Go proposal #69420 is accepted.
func hash(t types.Type) uint32 {
return theHasher.Hash(t)
}
// A Hasher provides a [Hasher.Hash] method to map a type to its hash value.
// Hashers are stateless, and all are equivalent.
type Hasher struct{}
var theHasher Hasher
// MakeHasher returns Hasher{}.
// Hashers are stateless; all are equivalent.
func MakeHasher() Hasher { return theHasher }
// Hash computes a hash value for the given type t such that
// Identical(t, t') => Hash(t) == Hash(t').
func (h Hasher) Hash(t types.Type) uint32 {
return hasher{inGenericSig: false}.hash(t)
}
// hasher holds the state of a single Hash traversal: whether we are
// inside the signature of a generic function; this is used to
// optimize [hasher.hashTypeParam].
type hasher struct{ inGenericSig bool }
// hashString computes the Fowler–Noll–Vo hash of s.
func hashString(s string) uint32 {
var h uint32
for i := 0; i < len(s); i++ {
h ^= uint32(s[i])
h *= 16777619
}
return h
}
// hash computes the hash of t.
func (h hasher) hash(t types.Type) uint32 {
// See Identical for rationale.
switch t := t.(type) {
case *types.Basic:
return uint32(t.Kind())
case *types.Alias:
return h.hash(types.Unalias(t))
case *types.Array:
return 9043 + 2*uint32(t.Len()) + 3*h.hash(t.Elem())
case *types.Slice:
return 9049 + 2*h.hash(t.Elem())
case *types.Struct:
var hash uint32 = 9059
for i, n := 0, t.NumFields(); i < n; i++ {
f := t.Field(i)
if f.Anonymous() {
hash += 8861
}
hash += hashString(t.Tag(i))
hash += hashString(f.Name()) // (ignore f.Pkg)
hash += h.hash(f.Type())
}
return hash
case *types.Pointer:
return 9067 + 2*h.hash(t.Elem())
case *types.Signature:
var hash uint32 = 9091
if t.Variadic() {
hash *= 8863
}
tparams := t.TypeParams()
if n := tparams.Len(); n > 0 {
h.inGenericSig = true // affects constraints, params, and results
for i := range n {
tparam := tparams.At(i)
hash += 7 * h.hash(tparam.Constraint())
}
}
return hash + 3*h.hashTuple(t.Params()) + 5*h.hashTuple(t.Results())
case *types.Union:
return h.hashUnion(t)
case *types.Interface:
// Interfaces are identical if they have the same set of methods, with
// identical names and types, and they have the same set of type
// restrictions. See go/types.identical for more details.
var hash uint32 = 9103
// Hash methods.
for i, n := 0, t.NumMethods(); i < n; i++ {
// Method order is not significant.
// Ignore m.Pkg().
m := t.Method(i)
// Use shallow hash on method signature to
// avoid anonymous interface cycles.
hash += 3*hashString(m.Name()) + 5*h.shallowHash(m.Type())
}
// Hash type restrictions.
terms, err := typeparams.InterfaceTermSet(t)
// if err != nil t has invalid type restrictions.
if err == nil {
hash += h.hashTermSet(terms)
}
return hash
case *types.Map:
return 9109 + 2*h.hash(t.Key()) + 3*h.hash(t.Elem())
case *types.Chan:
return 9127 + 2*uint32(t.Dir()) + 3*h.hash(t.Elem())
case *types.Named:
hash := h.hashTypeName(t.Obj())
targs := t.TypeArgs()
for i := 0; i < targs.Len(); i++ {
targ := targs.At(i)
hash += 2 * h.hash(targ)
}
return hash
case *types.TypeParam:
return h.hashTypeParam(t)
case *types.Tuple:
return h.hashTuple(t)
}
panic(fmt.Sprintf("%T: %v", t, t))
}
func (h hasher) hashTuple(tuple *types.Tuple) uint32 {
// See go/types.identicalTypes for rationale.
n := tuple.Len()
hash := 9137 + 2*uint32(n)
for i := range n {
hash += 3 * h.hash(tuple.At(i).Type())
}
return hash
}
func (h hasher) hashUnion(t *types.Union) uint32 {
// Hash type restrictions.
terms, err := typeparams.UnionTermSet(t)
// if err != nil t has invalid type restrictions. Fall back on a non-zero
// hash.
if err != nil {
return 9151
}
return h.hashTermSet(terms)
}
func (h hasher) hashTermSet(terms []*types.Term) uint32 {
hash := 9157 + 2*uint32(len(terms))
for _, term := range terms {
// term order is not significant.
termHash := h.hash(term.Type())
if term.Tilde() {
termHash *= 9161
}
hash += 3 * termHash
}
return hash
}
// hashTypeParam returns the hash of a type parameter.
func (h hasher) hashTypeParam(t *types.TypeParam) uint32 {
// Within the signature of a generic function, TypeParams are
// identical if they have the same index and constraint, so we
// hash them based on index.
//
// When we are outside a generic function, free TypeParams are
// identical iff they are the same object, so we can use a
// more discriminating hash consistent with object identity.
// This optimization saves [Map] about 4% when hashing all the
// types.Info.Types in the forward closure of net/http.
if !h.inGenericSig {
// Optimization: outside a generic function signature,
// use a more discrimating hash consistent with object identity.
return h.hashTypeName(t.Obj())
}
return 9173 + 3*uint32(t.Index())
}
var theSeed = maphash.MakeSeed()
// hashTypeName hashes the pointer of tname.
func (hasher) hashTypeName(tname *types.TypeName) uint32 {
// Since types.Identical uses == to compare TypeNames,
// the Hash function uses maphash.Comparable.
// TODO(adonovan): or will, when it becomes available in go1.24.
// In the meantime we use the pointer's numeric value.
//
// hash := maphash.Comparable(theSeed, tname)
//
// (Another approach would be to hash the name and package
// path, and whether or not it is a package-level typename. It
// is rare for a package to define multiple local types with
// the same name.)
ptr := uintptr(unsafe.Pointer(tname))
if unsafe.Sizeof(ptr) == 8 {
hash := uint64(ptr)
return uint32(hash ^ (hash >> 32))
} else {
return uint32(ptr)
}
}
// shallowHash computes a hash of t without looking at any of its
// element Types, to avoid potential anonymous cycles in the types of
// interface methods.
//
// When an unnamed non-empty interface type appears anywhere among the
// arguments or results of an interface method, there is a potential
// for endless recursion. Consider:
//
// type X interface { m() []*interface { X } }
//
// The problem is that the Methods of the interface in m's result type
// include m itself; there is no mention of the named type X that
// might help us break the cycle.
// (See comment in go/types.identical, case *Interface, for more.)
func (h hasher) shallowHash(t types.Type) uint32 {
// t is the type of an interface method (Signature),
// its params or results (Tuples), or their immediate
// elements (mostly Slice, Pointer, Basic, Named),
// so there's no need to optimize anything else.
switch t := t.(type) {
case *types.Alias:
return h.shallowHash(types.Unalias(t))
case *types.Signature:
var hash uint32 = 604171
if t.Variadic() {
hash *= 971767
}
// The Signature/Tuple recursion is always finite
// and invariably shallow.
return hash + 1062599*h.shallowHash(t.Params()) + 1282529*h.shallowHash(t.Results())
case *types.Tuple:
n := t.Len()
hash := 9137 + 2*uint32(n)
for i := range n {
hash += 53471161 * h.shallowHash(t.At(i).Type())
}
return hash
case *types.Basic:
return 45212177 * uint32(t.Kind())
case *types.Array:
return 1524181 + 2*uint32(t.Len())
case *types.Slice:
return 2690201
case *types.Struct:
return 3326489
case *types.Pointer:
return 4393139
case *types.Union:
return 562448657
case *types.Interface:
return 2124679 // no recursion here
case *types.Map:
return 9109
case *types.Chan:
return 9127
case *types.Named:
return h.hashTypeName(t.Obj())
case *types.TypeParam:
return h.hashTypeParam(t)
}
panic(fmt.Sprintf("shallowHash: %T: %v", t, t))
}
vendor/golang.org/x/tools/go/types/typeutil/methodsetcache.go
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file implements a cache of method sets.
package typeutil
import (
"go/types"
"sync"
)
// A MethodSetCache records the method set of each type T for which
// MethodSet(T) is called so that repeat queries are fast.
// The zero value is a ready-to-use cache instance.
type MethodSetCache struct {
mu sync.Mutex
named map[*types.Named]struct{ value, pointer *types.MethodSet } // method sets for named N and *N
others map[types.Type]*types.MethodSet // all other types
}
// MethodSet returns the method set of type T. It is thread-safe.
//
// If cache is nil, this function is equivalent to types.NewMethodSet(T).
// Utility functions can thus expose an optional *MethodSetCache
// parameter to clients that care about performance.
func (cache *MethodSetCache) MethodSet(T types.Type) *types.MethodSet {
if cache == nil {
return types.NewMethodSet(T)
}
cache.mu.Lock()
defer cache.mu.Unlock()
switch T := types.Unalias(T).(type) {
case *types.Named:
return cache.lookupNamed(T).value
case *types.Pointer:
if N, ok := types.Unalias(T.Elem()).(*types.Named); ok {
return cache.lookupNamed(N).pointer
}
}
// all other types
// (The map uses pointer equivalence, not type identity.)
mset := cache.others[T]
if mset == nil {
mset = types.NewMethodSet(T)
if cache.others == nil {
cache.others = make(map[types.Type]*types.MethodSet)
}
cache.others[T] = mset
}
return mset
}
func (cache *MethodSetCache) lookupNamed(named *types.Named) struct{ value, pointer *types.MethodSet } {
if cache.named == nil {
cache.named = make(map[*types.Named]struct{ value, pointer *types.MethodSet })
}
// Avoid recomputing mset(*T) for each distinct Pointer
// instance whose underlying type is a named type.
msets, ok := cache.named[named]
if !ok {
msets.value = types.NewMethodSet(named)
msets.pointer = types.NewMethodSet(types.NewPointer(named))
cache.named[named] = msets
}
return msets
}
vendor/golang.org/x/tools/go/types/typeutil/ui.go
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+53
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@@ -0,0 +1,53 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeutil
// This file defines utilities for user interfaces that display types.
import (
"go/types"
)
// IntuitiveMethodSet returns the intuitive method set of a type T,
// which is the set of methods you can call on an addressable value of
// that type.
//
// The result always contains MethodSet(T), and is exactly MethodSet(T)
// for interface types and for pointer-to-concrete types.
// For all other concrete types T, the result additionally
// contains each method belonging to *T if there is no identically
// named method on T itself.
//
// This corresponds to user intuition about method sets;
// this function is intended only for user interfaces.
//
// The order of the result is as for types.MethodSet(T).
func IntuitiveMethodSet(T types.Type, msets *MethodSetCache) []*types.Selection {
isPointerToConcrete := func(T types.Type) bool {
ptr, ok := types.Unalias(T).(*types.Pointer)
return ok && !types.IsInterface(ptr.Elem())
}
var result []*types.Selection
mset := msets.MethodSet(T)
if types.IsInterface(T) || isPointerToConcrete(T) {
for i, n := 0, mset.Len(); i < n; i++ {
result = append(result, mset.At(i))
}
} else {
// T is some other concrete type.
// Report methods of T and *T, preferring those of T.
pmset := msets.MethodSet(types.NewPointer(T))
for i, n := 0, pmset.Len(); i < n; i++ {
meth := pmset.At(i)
if m := mset.Lookup(meth.Obj().Pkg(), meth.Obj().Name()); m != nil {
meth = m
}
result = append(result, meth)
}
}
return result
}
vendor/golang.org/x/tools/internal/aliases/aliases.go
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+38
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// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package aliases
import (
"go/token"
"go/types"
)
// Package aliases defines backward compatible shims
// for the types.Alias type representation added in 1.22.
// This defines placeholders for x/tools until 1.26.
// NewAlias creates a new TypeName in Package pkg that
// is an alias for the type rhs.
//
// The enabled parameter determines whether the resulting [TypeName]'s
// type is an [types.Alias]. Its value must be the result of a call to
// [Enabled], which computes the effective value of
// GODEBUG=gotypesalias=... by invoking the type checker. The Enabled
// function is expensive and should be called once per task (e.g.
// package import), not once per call to NewAlias.
//
// Precondition: enabled || len(tparams)==0.
// If materialized aliases are disabled, there must not be any type parameters.
func NewAlias(enabled bool, pos token.Pos, pkg *types.Package, name string, rhs types.Type, tparams []*types.TypeParam) *types.TypeName {
if enabled {
tname := types.NewTypeName(pos, pkg, name, nil)
SetTypeParams(types.NewAlias(tname, rhs), tparams)
return tname
}
if len(tparams) > 0 {
panic("cannot create an alias with type parameters when gotypesalias is not enabled")
}
return types.NewTypeName(pos, pkg, name, rhs)
}
vendor/golang.org/x/tools/internal/aliases/aliases_go122.go
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+80
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// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package aliases
import (
"go/ast"
"go/parser"
"go/token"
"go/types"
)
// Rhs returns the type on the right-hand side of the alias declaration.
func Rhs(alias *types.Alias) types.Type {
if alias, ok := any(alias).(interface{ Rhs() types.Type }); ok {
return alias.Rhs() // go1.23+
}
// go1.22's Alias didn't have the Rhs method,
// so Unalias is the best we can do.
return types.Unalias(alias)
}
// TypeParams returns the type parameter list of the alias.
func TypeParams(alias *types.Alias) *types.TypeParamList {
if alias, ok := any(alias).(interface{ TypeParams() *types.TypeParamList }); ok {
return alias.TypeParams() // go1.23+
}
return nil
}
// SetTypeParams sets the type parameters of the alias type.
func SetTypeParams(alias *types.Alias, tparams []*types.TypeParam) {
if alias, ok := any(alias).(interface {
SetTypeParams(tparams []*types.TypeParam)
}); ok {
alias.SetTypeParams(tparams) // go1.23+
} else if len(tparams) > 0 {
panic("cannot set type parameters of an Alias type in go1.22")
}
}
// TypeArgs returns the type arguments used to instantiate the Alias type.
func TypeArgs(alias *types.Alias) *types.TypeList {
if alias, ok := any(alias).(interface{ TypeArgs() *types.TypeList }); ok {
return alias.TypeArgs() // go1.23+
}
return nil // empty (go1.22)
}
// Origin returns the generic Alias type of which alias is an instance.
// If alias is not an instance of a generic alias, Origin returns alias.
func Origin(alias *types.Alias) *types.Alias {
if alias, ok := any(alias).(interface{ Origin() *types.Alias }); ok {
return alias.Origin() // go1.23+
}
return alias // not an instance of a generic alias (go1.22)
}
// Enabled reports whether [NewAlias] should create [types.Alias] types.
//
// This function is expensive! Call it sparingly.
func Enabled() bool {
// The only reliable way to compute the answer is to invoke go/types.
// We don't parse the GODEBUG environment variable, because
// (a) it's tricky to do so in a manner that is consistent
// with the godebug package; in particular, a simple
// substring check is not good enough. The value is a
// rightmost-wins list of options. But more importantly:
// (b) it is impossible to detect changes to the effective
// setting caused by os.Setenv("GODEBUG"), as happens in
// many tests. Therefore any attempt to cache the result
// is just incorrect.
fset := token.NewFileSet()
f, _ := parser.ParseFile(fset, "a.go", "package p; type A = int", parser.SkipObjectResolution)
pkg, _ := new(types.Config).Check("p", fset, []*ast.File{f}, nil)
_, enabled := pkg.Scope().Lookup("A").Type().(*types.Alias)
return enabled
}
vendor/golang.org/x/tools/internal/event/core/event.go
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+85
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package core provides support for event based telemetry.
package core
import (
"fmt"
"time"
"golang.org/x/tools/internal/event/label"
)
// Event holds the information about an event of note that occurred.
type Event struct {
at time.Time
// As events are often on the stack, storing the first few labels directly
// in the event can avoid an allocation at all for the very common cases of
// simple events.
// The length needs to be large enough to cope with the majority of events
// but no so large as to cause undue stack pressure.
// A log message with two values will use 3 labels (one for each value and
// one for the message itself).
static [3]label.Label // inline storage for the first few labels
dynamic []label.Label // dynamically sized storage for remaining labels
}
// eventLabelMap implements label.Map for a the labels of an Event.
type eventLabelMap struct {
event Event
}
func (ev Event) At() time.Time { return ev.at }
func (ev Event) Format(f fmt.State, r rune) {
if !ev.at.IsZero() {
fmt.Fprint(f, ev.at.Format("2006/01/02 15:04:05 "))
}
for index := 0; ev.Valid(index); index++ {
if l := ev.Label(index); l.Valid() {
fmt.Fprintf(f, "\n\t%v", l)
}
}
}
func (ev Event) Valid(index int) bool {
return index >= 0 && index < len(ev.static)+len(ev.dynamic)
}
func (ev Event) Label(index int) label.Label {
if index < len(ev.static) {
return ev.static[index]
}
return ev.dynamic[index-len(ev.static)]
}
func (ev Event) Find(key label.Key) label.Label {
for _, l := range ev.static {
if l.Key() == key {
return l
}
}
for _, l := range ev.dynamic {
if l.Key() == key {
return l
}
}
return label.Label{}
}
func MakeEvent(static [3]label.Label, labels []label.Label) Event {
return Event{
static: static,
dynamic: labels,
}
}
// CloneEvent event returns a copy of the event with the time adjusted to at.
func CloneEvent(ev Event, at time.Time) Event {
ev.at = at
return ev
}
vendor/golang.org/x/tools/internal/event/core/export.go
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+70
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package core
import (
"context"
"sync/atomic"
"time"
"unsafe"
"golang.org/x/tools/internal/event/label"
)
// Exporter is a function that handles events.
// It may return a modified context and event.
type Exporter func(context.Context, Event, label.Map) context.Context
var (
exporter unsafe.Pointer
)
// SetExporter sets the global exporter function that handles all events.
// The exporter is called synchronously from the event call site, so it should
// return quickly so as not to hold up user code.
func SetExporter(e Exporter) {
p := unsafe.Pointer(&e)
if e == nil {
// &e is always valid, and so p is always valid, but for the early abort
// of ProcessEvent to be efficient it needs to make the nil check on the
// pointer without having to dereference it, so we make the nil function
// also a nil pointer
p = nil
}
atomic.StorePointer(&exporter, p)
}
// deliver is called to deliver an event to the supplied exporter.
// it will fill in the time.
func deliver(ctx context.Context, exporter Exporter, ev Event) context.Context {
// add the current time to the event
ev.at = time.Now()
// hand the event off to the current exporter
return exporter(ctx, ev, ev)
}
// Export is called to deliver an event to the global exporter if set.
func Export(ctx context.Context, ev Event) context.Context {
// get the global exporter and abort early if there is not one
exporterPtr := (*Exporter)(atomic.LoadPointer(&exporter))
if exporterPtr == nil {
return ctx
}
return deliver(ctx, *exporterPtr, ev)
}
// ExportPair is called to deliver a start event to the supplied exporter.
// It also returns a function that will deliver the end event to the same
// exporter.
// It will fill in the time.
func ExportPair(ctx context.Context, begin, end Event) (context.Context, func()) {
// get the global exporter and abort early if there is not one
exporterPtr := (*Exporter)(atomic.LoadPointer(&exporter))
if exporterPtr == nil {
return ctx, func() {}
}
ctx = deliver(ctx, *exporterPtr, begin)
return ctx, func() { deliver(ctx, *exporterPtr, end) }
}
vendor/golang.org/x/tools/internal/event/core/fast.go
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+77
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package core
import (
"context"
"golang.org/x/tools/internal/event/keys"
"golang.org/x/tools/internal/event/label"
)
// Log1 takes a message and one label delivers a log event to the exporter.
// It is a customized version of Print that is faster and does no allocation.
func Log1(ctx context.Context, message string, t1 label.Label) {
Export(ctx, MakeEvent([3]label.Label{
keys.Msg.Of(message),
t1,
}, nil))
}
// Log2 takes a message and two labels and delivers a log event to the exporter.
// It is a customized version of Print that is faster and does no allocation.
func Log2(ctx context.Context, message string, t1 label.Label, t2 label.Label) {
Export(ctx, MakeEvent([3]label.Label{
keys.Msg.Of(message),
t1,
t2,
}, nil))
}
// Metric1 sends a label event to the exporter with the supplied labels.
func Metric1(ctx context.Context, t1 label.Label) context.Context {
return Export(ctx, MakeEvent([3]label.Label{
keys.Metric.New(),
t1,
}, nil))
}
// Metric2 sends a label event to the exporter with the supplied labels.
func Metric2(ctx context.Context, t1, t2 label.Label) context.Context {
return Export(ctx, MakeEvent([3]label.Label{
keys.Metric.New(),
t1,
t2,
}, nil))
}
// Start1 sends a span start event with the supplied label list to the exporter.
// It also returns a function that will end the span, which should normally be
// deferred.
func Start1(ctx context.Context, name string, t1 label.Label) (context.Context, func()) {
return ExportPair(ctx,
MakeEvent([3]label.Label{
keys.Start.Of(name),
t1,
}, nil),
MakeEvent([3]label.Label{
keys.End.New(),
}, nil))
}
// Start2 sends a span start event with the supplied label list to the exporter.
// It also returns a function that will end the span, which should normally be
// deferred.
func Start2(ctx context.Context, name string, t1, t2 label.Label) (context.Context, func()) {
return ExportPair(ctx,
MakeEvent([3]label.Label{
keys.Start.Of(name),
t1,
t2,
}, nil),
MakeEvent([3]label.Label{
keys.End.New(),
}, nil))
}
vendor/golang.org/x/tools/internal/event/doc.go
Generated Vendored
+7
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@@ -0,0 +1,7 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package event provides a set of packages that cover the main
// concepts of telemetry in an implementation agnostic way.
package event
vendor/golang.org/x/tools/internal/event/event.go
Generated Vendored
+127
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@@ -0,0 +1,127 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package event
import (
"context"
"golang.org/x/tools/internal/event/core"
"golang.org/x/tools/internal/event/keys"
"golang.org/x/tools/internal/event/label"
)
// Exporter is a function that handles events.
// It may return a modified context and event.
type Exporter func(context.Context, core.Event, label.Map) context.Context
// SetExporter sets the global exporter function that handles all events.
// The exporter is called synchronously from the event call site, so it should
// return quickly so as not to hold up user code.
func SetExporter(e Exporter) {
core.SetExporter(core.Exporter(e))
}
// Log takes a message and a label list and combines them into a single event
// before delivering them to the exporter.
func Log(ctx context.Context, message string, labels ...label.Label) {
core.Export(ctx, core.MakeEvent([3]label.Label{
keys.Msg.Of(message),
}, labels))
}
// IsLog returns true if the event was built by the Log function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsLog(ev core.Event) bool {
return ev.Label(0).Key() == keys.Msg
}
// Error takes a message and a label list and combines them into a single event
// before delivering them to the exporter. It captures the error in the
// delivered event.
func Error(ctx context.Context, message string, err error, labels ...label.Label) {
core.Export(ctx, core.MakeEvent([3]label.Label{
keys.Msg.Of(message),
keys.Err.Of(err),
}, labels))
}
// IsError returns true if the event was built by the Error function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsError(ev core.Event) bool {
return ev.Label(0).Key() == keys.Msg &&
ev.Label(1).Key() == keys.Err
}
// Metric sends a label event to the exporter with the supplied labels.
func Metric(ctx context.Context, labels ...label.Label) {
core.Export(ctx, core.MakeEvent([3]label.Label{
keys.Metric.New(),
}, labels))
}
// IsMetric returns true if the event was built by the Metric function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsMetric(ev core.Event) bool {
return ev.Label(0).Key() == keys.Metric
}
// Label sends a label event to the exporter with the supplied labels.
func Label(ctx context.Context, labels ...label.Label) context.Context {
return core.Export(ctx, core.MakeEvent([3]label.Label{
keys.Label.New(),
}, labels))
}
// IsLabel returns true if the event was built by the Label function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsLabel(ev core.Event) bool {
return ev.Label(0).Key() == keys.Label
}
// Start sends a span start event with the supplied label list to the exporter.
// It also returns a function that will end the span, which should normally be
// deferred.
func Start(ctx context.Context, name string, labels ...label.Label) (context.Context, func()) {
return core.ExportPair(ctx,
core.MakeEvent([3]label.Label{
keys.Start.Of(name),
}, labels),
core.MakeEvent([3]label.Label{
keys.End.New(),
}, nil))
}
// IsStart returns true if the event was built by the Start function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsStart(ev core.Event) bool {
return ev.Label(0).Key() == keys.Start
}
// IsEnd returns true if the event was built by the End function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsEnd(ev core.Event) bool {
return ev.Label(0).Key() == keys.End
}
// Detach returns a context without an associated span.
// This allows the creation of spans that are not children of the current span.
func Detach(ctx context.Context) context.Context {
return core.Export(ctx, core.MakeEvent([3]label.Label{
keys.Detach.New(),
}, nil))
}
// IsDetach returns true if the event was built by the Detach function.
// It is intended to be used in exporters to identify the semantics of the
// event when deciding what to do with it.
func IsDetach(ev core.Event) bool {
return ev.Label(0).Key() == keys.Detach
}
vendor/golang.org/x/tools/internal/event/keys/keys.go
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package keys
import (
"fmt"
"io"
"math"
"strconv"
"golang.org/x/tools/internal/event/label"
)
// Value represents a key for untyped values.
type Value struct {
name string
description string
}
// New creates a new Key for untyped values.
func New(name, description string) *Value {
return &Value{name: name, description: description}
}
func (k *Value) Name() string { return k.name }
func (k *Value) Description() string { return k.description }
func (k *Value) Format(w io.Writer, buf []byte, l label.Label) {
fmt.Fprint(w, k.From(l))
}
// Get can be used to get a label for the key from a label.Map.
func (k *Value) Get(lm label.Map) any {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return nil
}
// From can be used to get a value from a Label.
func (k *Value) From(t label.Label) any { return t.UnpackValue() }
// Of creates a new Label with this key and the supplied value.
func (k *Value) Of(value any) label.Label { return label.OfValue(k, value) }
// Tag represents a key for tagging labels that have no value.
// These are used when the existence of the label is the entire information it
// carries, such as marking events to be of a specific kind, or from a specific
// package.
type Tag struct {
name string
description string
}
// NewTag creates a new Key for tagging labels.
func NewTag(name, description string) *Tag {
return &Tag{name: name, description: description}
}
func (k *Tag) Name() string { return k.name }
func (k *Tag) Description() string { return k.description }
func (k *Tag) Format(w io.Writer, buf []byte, l label.Label) {}
// New creates a new Label with this key.
func (k *Tag) New() label.Label { return label.OfValue(k, nil) }
// Int represents a key
type Int struct {
name string
description string
}
// NewInt creates a new Key for int values.
func NewInt(name, description string) *Int {
return &Int{name: name, description: description}
}
func (k *Int) Name() string { return k.name }
func (k *Int) Description() string { return k.description }
func (k *Int) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendInt(buf, int64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *Int) Of(v int) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *Int) Get(lm label.Map) int {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Int) From(t label.Label) int { return int(t.Unpack64()) }
// Int8 represents a key
type Int8 struct {
name string
description string
}
// NewInt8 creates a new Key for int8 values.
func NewInt8(name, description string) *Int8 {
return &Int8{name: name, description: description}
}
func (k *Int8) Name() string { return k.name }
func (k *Int8) Description() string { return k.description }
func (k *Int8) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendInt(buf, int64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *Int8) Of(v int8) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *Int8) Get(lm label.Map) int8 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Int8) From(t label.Label) int8 { return int8(t.Unpack64()) }
// Int16 represents a key
type Int16 struct {
name string
description string
}
// NewInt16 creates a new Key for int16 values.
func NewInt16(name, description string) *Int16 {
return &Int16{name: name, description: description}
}
func (k *Int16) Name() string { return k.name }
func (k *Int16) Description() string { return k.description }
func (k *Int16) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendInt(buf, int64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *Int16) Of(v int16) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *Int16) Get(lm label.Map) int16 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Int16) From(t label.Label) int16 { return int16(t.Unpack64()) }
// Int32 represents a key
type Int32 struct {
name string
description string
}
// NewInt32 creates a new Key for int32 values.
func NewInt32(name, description string) *Int32 {
return &Int32{name: name, description: description}
}
func (k *Int32) Name() string { return k.name }
func (k *Int32) Description() string { return k.description }
func (k *Int32) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendInt(buf, int64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *Int32) Of(v int32) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *Int32) Get(lm label.Map) int32 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Int32) From(t label.Label) int32 { return int32(t.Unpack64()) }
// Int64 represents a key
type Int64 struct {
name string
description string
}
// NewInt64 creates a new Key for int64 values.
func NewInt64(name, description string) *Int64 {
return &Int64{name: name, description: description}
}
func (k *Int64) Name() string { return k.name }
func (k *Int64) Description() string { return k.description }
func (k *Int64) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendInt(buf, k.From(l), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *Int64) Of(v int64) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *Int64) Get(lm label.Map) int64 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Int64) From(t label.Label) int64 { return int64(t.Unpack64()) }
// UInt represents a key
type UInt struct {
name string
description string
}
// NewUInt creates a new Key for uint values.
func NewUInt(name, description string) *UInt {
return &UInt{name: name, description: description}
}
func (k *UInt) Name() string { return k.name }
func (k *UInt) Description() string { return k.description }
func (k *UInt) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendUint(buf, uint64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *UInt) Of(v uint) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *UInt) Get(lm label.Map) uint {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *UInt) From(t label.Label) uint { return uint(t.Unpack64()) }
// UInt8 represents a key
type UInt8 struct {
name string
description string
}
// NewUInt8 creates a new Key for uint8 values.
func NewUInt8(name, description string) *UInt8 {
return &UInt8{name: name, description: description}
}
func (k *UInt8) Name() string { return k.name }
func (k *UInt8) Description() string { return k.description }
func (k *UInt8) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendUint(buf, uint64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *UInt8) Of(v uint8) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *UInt8) Get(lm label.Map) uint8 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *UInt8) From(t label.Label) uint8 { return uint8(t.Unpack64()) }
// UInt16 represents a key
type UInt16 struct {
name string
description string
}
// NewUInt16 creates a new Key for uint16 values.
func NewUInt16(name, description string) *UInt16 {
return &UInt16{name: name, description: description}
}
func (k *UInt16) Name() string { return k.name }
func (k *UInt16) Description() string { return k.description }
func (k *UInt16) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendUint(buf, uint64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *UInt16) Of(v uint16) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *UInt16) Get(lm label.Map) uint16 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *UInt16) From(t label.Label) uint16 { return uint16(t.Unpack64()) }
// UInt32 represents a key
type UInt32 struct {
name string
description string
}
// NewUInt32 creates a new Key for uint32 values.
func NewUInt32(name, description string) *UInt32 {
return &UInt32{name: name, description: description}
}
func (k *UInt32) Name() string { return k.name }
func (k *UInt32) Description() string { return k.description }
func (k *UInt32) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendUint(buf, uint64(k.From(l)), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *UInt32) Of(v uint32) label.Label { return label.Of64(k, uint64(v)) }
// Get can be used to get a label for the key from a label.Map.
func (k *UInt32) Get(lm label.Map) uint32 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *UInt32) From(t label.Label) uint32 { return uint32(t.Unpack64()) }
// UInt64 represents a key
type UInt64 struct {
name string
description string
}
// NewUInt64 creates a new Key for uint64 values.
func NewUInt64(name, description string) *UInt64 {
return &UInt64{name: name, description: description}
}
func (k *UInt64) Name() string { return k.name }
func (k *UInt64) Description() string { return k.description }
func (k *UInt64) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendUint(buf, k.From(l), 10))
}
// Of creates a new Label with this key and the supplied value.
func (k *UInt64) Of(v uint64) label.Label { return label.Of64(k, v) }
// Get can be used to get a label for the key from a label.Map.
func (k *UInt64) Get(lm label.Map) uint64 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *UInt64) From(t label.Label) uint64 { return t.Unpack64() }
// Float32 represents a key
type Float32 struct {
name string
description string
}
// NewFloat32 creates a new Key for float32 values.
func NewFloat32(name, description string) *Float32 {
return &Float32{name: name, description: description}
}
func (k *Float32) Name() string { return k.name }
func (k *Float32) Description() string { return k.description }
func (k *Float32) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendFloat(buf, float64(k.From(l)), 'E', -1, 32))
}
// Of creates a new Label with this key and the supplied value.
func (k *Float32) Of(v float32) label.Label {
return label.Of64(k, uint64(math.Float32bits(v)))
}
// Get can be used to get a label for the key from a label.Map.
func (k *Float32) Get(lm label.Map) float32 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Float32) From(t label.Label) float32 {
return math.Float32frombits(uint32(t.Unpack64()))
}
// Float64 represents a key
type Float64 struct {
name string
description string
}
// NewFloat64 creates a new Key for int64 values.
func NewFloat64(name, description string) *Float64 {
return &Float64{name: name, description: description}
}
func (k *Float64) Name() string { return k.name }
func (k *Float64) Description() string { return k.description }
func (k *Float64) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendFloat(buf, k.From(l), 'E', -1, 64))
}
// Of creates a new Label with this key and the supplied value.
func (k *Float64) Of(v float64) label.Label {
return label.Of64(k, math.Float64bits(v))
}
// Get can be used to get a label for the key from a label.Map.
func (k *Float64) Get(lm label.Map) float64 {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return 0
}
// From can be used to get a value from a Label.
func (k *Float64) From(t label.Label) float64 {
return math.Float64frombits(t.Unpack64())
}
// String represents a key
type String struct {
name string
description string
}
// NewString creates a new Key for int64 values.
func NewString(name, description string) *String {
return &String{name: name, description: description}
}
func (k *String) Name() string { return k.name }
func (k *String) Description() string { return k.description }
func (k *String) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendQuote(buf, k.From(l)))
}
// Of creates a new Label with this key and the supplied value.
func (k *String) Of(v string) label.Label { return label.OfString(k, v) }
// Get can be used to get a label for the key from a label.Map.
func (k *String) Get(lm label.Map) string {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return ""
}
// From can be used to get a value from a Label.
func (k *String) From(t label.Label) string { return t.UnpackString() }
// Boolean represents a key
type Boolean struct {
name string
description string
}
// NewBoolean creates a new Key for bool values.
func NewBoolean(name, description string) *Boolean {
return &Boolean{name: name, description: description}
}
func (k *Boolean) Name() string { return k.name }
func (k *Boolean) Description() string { return k.description }
func (k *Boolean) Format(w io.Writer, buf []byte, l label.Label) {
w.Write(strconv.AppendBool(buf, k.From(l)))
}
// Of creates a new Label with this key and the supplied value.
func (k *Boolean) Of(v bool) label.Label {
if v {
return label.Of64(k, 1)
}
return label.Of64(k, 0)
}
// Get can be used to get a label for the key from a label.Map.
func (k *Boolean) Get(lm label.Map) bool {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return false
}
// From can be used to get a value from a Label.
func (k *Boolean) From(t label.Label) bool { return t.Unpack64() > 0 }
// Error represents a key
type Error struct {
name string
description string
}
// NewError creates a new Key for int64 values.
func NewError(name, description string) *Error {
return &Error{name: name, description: description}
}
func (k *Error) Name() string { return k.name }
func (k *Error) Description() string { return k.description }
func (k *Error) Format(w io.Writer, buf []byte, l label.Label) {
io.WriteString(w, k.From(l).Error())
}
// Of creates a new Label with this key and the supplied value.
func (k *Error) Of(v error) label.Label { return label.OfValue(k, v) }
// Get can be used to get a label for the key from a label.Map.
func (k *Error) Get(lm label.Map) error {
if t := lm.Find(k); t.Valid() {
return k.From(t)
}
return nil
}
// From can be used to get a value from a Label.
func (k *Error) From(t label.Label) error {
err, _ := t.UnpackValue().(error)
return err
}
vendor/golang.org/x/tools/internal/event/keys/standard.go
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package keys
var (
// Msg is a key used to add message strings to label lists.
Msg = NewString("message", "a readable message")
// Label is a key used to indicate an event adds labels to the context.
Label = NewTag("label", "a label context marker")
// Start is used for things like traces that have a name.
Start = NewString("start", "span start")
// Metric is a key used to indicate an event records metrics.
End = NewTag("end", "a span end marker")
// Metric is a key used to indicate an event records metrics.
Detach = NewTag("detach", "a span detach marker")
// Err is a key used to add error values to label lists.
Err = NewError("error", "an error that occurred")
// Metric is a key used to indicate an event records metrics.
Metric = NewTag("metric", "a metric event marker")
)
vendor/golang.org/x/tools/internal/event/keys/util.go
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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package keys
import (
"sort"
"strings"
)
// Join returns a canonical join of the keys in S:
// a sorted comma-separated string list.
func Join[S ~[]T, T ~string](s S) string {
strs := make([]string, 0, len(s))
for _, v := range s {
strs = append(strs, string(v))
}
sort.Strings(strs)
return strings.Join(strs, ",")
}
vendor/golang.org/x/tools/internal/event/label/label.go
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+214
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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package label
import (
"fmt"
"io"
"reflect"
"slices"
"unsafe"
)
// Key is used as the identity of a Label.
// Keys are intended to be compared by pointer only, the name should be unique
// for communicating with external systems, but it is not required or enforced.
type Key interface {
// Name returns the key name.
Name() string
// Description returns a string that can be used to describe the value.
Description() string
// Format is used in formatting to append the value of the label to the
// supplied buffer.
// The formatter may use the supplied buf as a scratch area to avoid
// allocations.
Format(w io.Writer, buf []byte, l Label)
}
// Label holds a key and value pair.
// It is normally used when passing around lists of labels.
type Label struct {
key Key
packed uint64
untyped any
}
// Map is the interface to a collection of Labels indexed by key.
type Map interface {
// Find returns the label that matches the supplied key.
Find(key Key) Label
}
// List is the interface to something that provides an iterable
// list of labels.
// Iteration should start from 0 and continue until Valid returns false.
type List interface {
// Valid returns true if the index is within range for the list.
// It does not imply the label at that index will itself be valid.
Valid(index int) bool
// Label returns the label at the given index.
Label(index int) Label
}
// list implements LabelList for a list of Labels.
type list struct {
labels []Label
}
// filter wraps a LabelList filtering out specific labels.
type filter struct {
keys []Key
underlying List
}
// listMap implements LabelMap for a simple list of labels.
type listMap struct {
labels []Label
}
// mapChain implements LabelMap for a list of underlying LabelMap.
type mapChain struct {
maps []Map
}
// OfValue creates a new label from the key and value.
// This method is for implementing new key types, label creation should
// normally be done with the Of method of the key.
func OfValue(k Key, value any) Label { return Label{key: k, untyped: value} }
// UnpackValue assumes the label was built using LabelOfValue and returns the value
// that was passed to that constructor.
// This method is for implementing new key types, for type safety normal
// access should be done with the From method of the key.
func (t Label) UnpackValue() any { return t.untyped }
// Of64 creates a new label from a key and a uint64. This is often
// used for non uint64 values that can be packed into a uint64.
// This method is for implementing new key types, label creation should
// normally be done with the Of method of the key.
func Of64(k Key, v uint64) Label { return Label{key: k, packed: v} }
// Unpack64 assumes the label was built using LabelOf64 and returns the value that
// was passed to that constructor.
// This method is for implementing new key types, for type safety normal
// access should be done with the From method of the key.
func (t Label) Unpack64() uint64 { return t.packed }
type stringptr unsafe.Pointer
// OfString creates a new label from a key and a string.
// This method is for implementing new key types, label creation should
// normally be done with the Of method of the key.
func OfString(k Key, v string) Label {
hdr := (*reflect.StringHeader)(unsafe.Pointer(&v))
return Label{
key: k,
packed: uint64(hdr.Len),
untyped: stringptr(hdr.Data),
}
}
// UnpackString assumes the label was built using LabelOfString and returns the
// value that was passed to that constructor.
// This method is for implementing new key types, for type safety normal
// access should be done with the From method of the key.
func (t Label) UnpackString() string {
var v string
hdr := (*reflect.StringHeader)(unsafe.Pointer(&v))
hdr.Data = uintptr(t.untyped.(stringptr))
hdr.Len = int(t.packed)
return v
}
// Valid returns true if the Label is a valid one (it has a key).
func (t Label) Valid() bool { return t.key != nil }
// Key returns the key of this Label.
func (t Label) Key() Key { return t.key }
// Format is used for debug printing of labels.
func (t Label) Format(f fmt.State, r rune) {
if !t.Valid() {
io.WriteString(f, `nil`)
return
}
io.WriteString(f, t.Key().Name())
io.WriteString(f, "=")
var buf [128]byte
t.Key().Format(f, buf[:0], t)
}
func (l *list) Valid(index int) bool {
return index >= 0 && index < len(l.labels)
}
func (l *list) Label(index int) Label {
return l.labels[index]
}
func (f *filter) Valid(index int) bool {
return f.underlying.Valid(index)
}
func (f *filter) Label(index int) Label {
l := f.underlying.Label(index)
if slices.Contains(f.keys, l.Key()) {
return Label{}
}
return l
}
func (lm listMap) Find(key Key) Label {
for _, l := range lm.labels {
if l.Key() == key {
return l
}
}
return Label{}
}
func (c mapChain) Find(key Key) Label {
for _, src := range c.maps {
l := src.Find(key)
if l.Valid() {
return l
}
}
return Label{}
}
var emptyList = &list{}
func NewList(labels ...Label) List {
if len(labels) == 0 {
return emptyList
}
return &list{labels: labels}
}
func Filter(l List, keys ...Key) List {
if len(keys) == 0 {
return l
}
return &filter{keys: keys, underlying: l}
}
func NewMap(labels ...Label) Map {
return listMap{labels: labels}
}
func MergeMaps(srcs ...Map) Map {
var nonNil []Map
for _, src := range srcs {
if src != nil {
nonNil = append(nonNil, src)
}
}
if len(nonNil) == 1 {
return nonNil[0]
}
return mapChain{maps: nonNil}
}
vendor/golang.org/x/tools/internal/gcimporter/bimport.go
Generated Vendored
+89
View File
@@ -0,0 +1,89 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file contains the remaining vestiges of
// $GOROOT/src/go/internal/gcimporter/bimport.go.
package gcimporter
import (
"fmt"
"go/token"
"go/types"
"sync"
)
func errorf(format string, args ...any) {
panic(fmt.Sprintf(format, args...))
}
const deltaNewFile = -64 // see cmd/compile/internal/gc/bexport.go
// Synthesize a token.Pos
type fakeFileSet struct {
fset *token.FileSet
files map[string]*fileInfo
}
type fileInfo struct {
file *token.File
lastline int
}
const maxlines = 64 * 1024
func (s *fakeFileSet) pos(file string, line, column int) token.Pos {
// TODO(mdempsky): Make use of column.
// Since we don't know the set of needed file positions, we reserve maxlines
// positions per file. We delay calling token.File.SetLines until all
// positions have been calculated (by way of fakeFileSet.setLines), so that
// we can avoid setting unnecessary lines. See also golang/go#46586.
f := s.files[file]
if f == nil {
f = &fileInfo{file: s.fset.AddFile(file, -1, maxlines)}
s.files[file] = f
}
if line > maxlines {
line = 1
}
if line > f.lastline {
f.lastline = line
}
// Return a fake position assuming that f.file consists only of newlines.
return token.Pos(f.file.Base() + line - 1)
}
func (s *fakeFileSet) setLines() {
fakeLinesOnce.Do(func() {
fakeLines = make([]int, maxlines)
for i := range fakeLines {
fakeLines[i] = i
}
})
for _, f := range s.files {
f.file.SetLines(fakeLines[:f.lastline])
}
}
var (
fakeLines []int
fakeLinesOnce sync.Once
)
func chanDir(d int) types.ChanDir {
// tag values must match the constants in cmd/compile/internal/gc/go.go
switch d {
case 1 /* Crecv */ :
return types.RecvOnly
case 2 /* Csend */ :
return types.SendOnly
case 3 /* Cboth */ :
return types.SendRecv
default:
errorf("unexpected channel dir %d", d)
return 0
}
}
vendor/golang.org/x/tools/internal/gcimporter/exportdata.go
Generated Vendored
+421
View File
@@ -0,0 +1,421 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file should be kept in sync with $GOROOT/src/internal/exportdata/exportdata.go.
// This file also additionally implements FindExportData for gcexportdata.NewReader.
package gcimporter
import (
"bufio"
"bytes"
"errors"
"fmt"
"go/build"
"io"
"os"
"os/exec"
"path/filepath"
"strings"
"sync"
)
// FindExportData positions the reader r at the beginning of the
// export data section of an underlying cmd/compile created archive
// file by reading from it. The reader must be positioned at the
// start of the file before calling this function.
// This returns the length of the export data in bytes.
//
// This function is needed by [gcexportdata.Read], which must
// accept inputs produced by the last two releases of cmd/compile,
// plus tip.
func FindExportData(r *bufio.Reader) (size int64, err error) {
arsize, err := FindPackageDefinition(r)
if err != nil {
return
}
size = int64(arsize)
objapi, headers, err := ReadObjectHeaders(r)
if err != nil {
return
}
size -= int64(len(objapi))
for _, h := range headers {
size -= int64(len(h))
}
// Check for the binary export data section header "$$B\n".
// TODO(taking): Unify with ReadExportDataHeader so that it stops at the 'u' instead of reading
line, err := r.ReadSlice('\n')
if err != nil {
return
}
hdr := string(line)
if hdr != "$$B\n" {
err = fmt.Errorf("unknown export data header: %q", hdr)
return
}
size -= int64(len(hdr))
// For files with a binary export data header "$$B\n",
// these are always terminated by an end-of-section marker "\n$$\n".
// So the last bytes must always be this constant.
//
// The end-of-section marker is not a part of the export data itself.
// Do not include these in size.
//
// It would be nice to have sanity check that the final bytes after
// the export data are indeed the end-of-section marker. The split
// of gcexportdata.NewReader and gcexportdata.Read make checking this
// ugly so gcimporter gives up enforcing this. The compiler and go/types
// importer do enforce this, which seems good enough.
const endofsection = "\n$$\n"
size -= int64(len(endofsection))
if size < 0 {
err = fmt.Errorf("invalid size (%d) in the archive file: %d bytes remain without section headers (recompile package)", arsize, size)
return
}
return
}
// ReadUnified reads the contents of the unified export data from a reader r
// that contains the contents of a GC-created archive file.
//
// On success, the reader will be positioned after the end-of-section marker "\n$$\n".
//
// Supported GC-created archive files have 4 layers of nesting:
// - An archive file containing a package definition file.
// - The package definition file contains headers followed by a data section.
// Headers are lines (≤ 4kb) that do not start with "$$".
// - The data section starts with "$$B\n" followed by export data followed
// by an end of section marker "\n$$\n". (The section start "$$\n" is no
// longer supported.)
// - The export data starts with a format byte ('u') followed by the <data> in
// the given format. (See ReadExportDataHeader for older formats.)
//
// Putting this together, the bytes in a GC-created archive files are expected
// to look like the following.
// See cmd/internal/archive for more details on ar file headers.
//
// | <!arch>\n | ar file signature
// | __.PKGDEF...size...\n | ar header for __.PKGDEF including size.
// | go object <...>\n | objabi header
// | <optional headers>\n | other headers such as build id
// | $$B\n | binary format marker
// | u<data>\n | unified export <data>
// | $$\n | end-of-section marker
// | [optional padding] | padding byte (0x0A) if size is odd
// | [ar file header] | other ar files
// | [ar file data] |
func ReadUnified(r *bufio.Reader) (data []byte, err error) {
// We historically guaranteed headers at the default buffer size (4096) work.
// This ensures we can use ReadSlice throughout.
const minBufferSize = 4096
r = bufio.NewReaderSize(r, minBufferSize)
size, err := FindPackageDefinition(r)
if err != nil {
return
}
n := size
objapi, headers, err := ReadObjectHeaders(r)
if err != nil {
return
}
n -= len(objapi)
for _, h := range headers {
n -= len(h)
}
hdrlen, err := ReadExportDataHeader(r)
if err != nil {
return
}
n -= hdrlen
// size also includes the end of section marker. Remove that many bytes from the end.
const marker = "\n$$\n"
n -= len(marker)
if n < 0 {
err = fmt.Errorf("invalid size (%d) in the archive file: %d bytes remain without section headers (recompile package)", size, n)
return
}
// Read n bytes from buf.
data = make([]byte, n)
_, err = io.ReadFull(r, data)
if err != nil {
return
}
// Check for marker at the end.
var suffix [len(marker)]byte
_, err = io.ReadFull(r, suffix[:])
if err != nil {
return
}
if s := string(suffix[:]); s != marker {
err = fmt.Errorf("read %q instead of end-of-section marker (%q)", s, marker)
return
}
return
}
// FindPackageDefinition positions the reader r at the beginning of a package
// definition file ("__.PKGDEF") within a GC-created archive by reading
// from it, and returns the size of the package definition file in the archive.
//
// The reader must be positioned at the start of the archive file before calling
// this function, and "__.PKGDEF" is assumed to be the first file in the archive.
//
// See cmd/internal/archive for details on the archive format.
func FindPackageDefinition(r *bufio.Reader) (size int, err error) {
// Uses ReadSlice to limit risk of malformed inputs.
// Read first line to make sure this is an object file.
line, err := r.ReadSlice('\n')
if err != nil {
err = fmt.Errorf("can't find export data (%v)", err)
return
}
// Is the first line an archive file signature?
if string(line) != "!<arch>\n" {
err = fmt.Errorf("not the start of an archive file (%q)", line)
return
}
// package export block should be first
size = readArchiveHeader(r, "__.PKGDEF")
if size <= 0 {
err = fmt.Errorf("not a package file")
return
}
return
}
// ReadObjectHeaders reads object headers from the reader. Object headers are
// lines that do not start with an end-of-section marker "$$". The first header
// is the objabi header. On success, the reader will be positioned at the beginning
// of the end-of-section marker.
//
// It returns an error if any header does not fit in r.Size() bytes.
func ReadObjectHeaders(r *bufio.Reader) (objapi string, headers []string, err error) {
// line is a temporary buffer for headers.
// Use bounded reads (ReadSlice, Peek) to limit risk of malformed inputs.
var line []byte
// objapi header should be the first line
if line, err = r.ReadSlice('\n'); err != nil {
err = fmt.Errorf("can't find export data (%v)", err)
return
}
objapi = string(line)
// objapi header begins with "go object ".
if !strings.HasPrefix(objapi, "go object ") {
err = fmt.Errorf("not a go object file: %s", objapi)
return
}
// process remaining object header lines
for {
// check for an end of section marker "$$"
line, err = r.Peek(2)
if err != nil {
return
}
if string(line) == "$$" {
return // stop
}
// read next header
line, err = r.ReadSlice('\n')
if err != nil {
return
}
headers = append(headers, string(line))
}
}
// ReadExportDataHeader reads the export data header and format from r.
// It returns the number of bytes read, or an error if the format is no longer
// supported or it failed to read.
//
// The only currently supported format is binary export data in the
// unified export format.
func ReadExportDataHeader(r *bufio.Reader) (n int, err error) {
// Read export data header.
line, err := r.ReadSlice('\n')
if err != nil {
return
}
hdr := string(line)
switch hdr {
case "$$\n":
err = fmt.Errorf("old textual export format no longer supported (recompile package)")
return
case "$$B\n":
var format byte
format, err = r.ReadByte()
if err != nil {
return
}
// The unified export format starts with a 'u'.
switch format {
case 'u':
default:
// Older no longer supported export formats include:
// indexed export format which started with an 'i'; and
// the older binary export format which started with a 'c',
// 'd', or 'v' (from "version").
err = fmt.Errorf("binary export format %q is no longer supported (recompile package)", format)
return
}
default:
err = fmt.Errorf("unknown export data header: %q", hdr)
return
}
n = len(hdr) + 1 // + 1 is for 'u'
return
}
// FindPkg returns the filename and unique package id for an import
// path based on package information provided by build.Import (using
// the build.Default build.Context). A relative srcDir is interpreted
// relative to the current working directory.
//
// FindPkg is only used in tests within x/tools.
func FindPkg(path, srcDir string) (filename, id string, err error) {
// TODO(taking): Move internal/exportdata.FindPkg into its own file,
// and then this copy into a _test package.
if path == "" {
return "", "", errors.New("path is empty")
}
var noext string
switch {
default:
// "x" -> "$GOPATH/pkg/$GOOS_$GOARCH/x.ext", "x"
// Don't require the source files to be present.
if abs, err := filepath.Abs(srcDir); err == nil { // see issue 14282
srcDir = abs
}
var bp *build.Package
bp, err = build.Import(path, srcDir, build.FindOnly|build.AllowBinary)
if bp.PkgObj == "" {
if bp.Goroot && bp.Dir != "" {
filename, err = lookupGorootExport(bp.Dir)
if err == nil {
_, err = os.Stat(filename)
}
if err == nil {
return filename, bp.ImportPath, nil
}
}
goto notfound
} else {
noext = strings.TrimSuffix(bp.PkgObj, ".a")
}
id = bp.ImportPath
case build.IsLocalImport(path):
// "./x" -> "/this/directory/x.ext", "/this/directory/x"
noext = filepath.Join(srcDir, path)
id = noext
case filepath.IsAbs(path):
// for completeness only - go/build.Import
// does not support absolute imports
// "/x" -> "/x.ext", "/x"
noext = path
id = path
}
if false { // for debugging
if path != id {
fmt.Printf("%s -> %s\n", path, id)
}
}
// try extensions
for _, ext := range pkgExts {
filename = noext + ext
f, statErr := os.Stat(filename)
if statErr == nil && !f.IsDir() {
return filename, id, nil
}
if err == nil {
err = statErr
}
}
notfound:
if err == nil {
return "", path, fmt.Errorf("can't find import: %q", path)
}
return "", path, fmt.Errorf("can't find import: %q: %w", path, err)
}
var pkgExts = [...]string{".a", ".o"} // a file from the build cache will have no extension
var exportMap sync.Map // package dir → func() (string, error)
// lookupGorootExport returns the location of the export data
// (normally found in the build cache, but located in GOROOT/pkg
// in prior Go releases) for the package located in pkgDir.
//
// (We use the package's directory instead of its import path
// mainly to simplify handling of the packages in src/vendor
// and cmd/vendor.)
//
// lookupGorootExport is only used in tests within x/tools.
func lookupGorootExport(pkgDir string) (string, error) {
f, ok := exportMap.Load(pkgDir)
if !ok {
var (
listOnce sync.Once
exportPath string
err error
)
f, _ = exportMap.LoadOrStore(pkgDir, func() (string, error) {
listOnce.Do(func() {
cmd := exec.Command(filepath.Join(build.Default.GOROOT, "bin", "go"), "list", "-export", "-f", "{{.Export}}", pkgDir)
cmd.Dir = build.Default.GOROOT
cmd.Env = append(os.Environ(), "PWD="+cmd.Dir, "GOROOT="+build.Default.GOROOT)
var output []byte
output, err = cmd.Output()
if err != nil {
if ee, ok := err.(*exec.ExitError); ok && len(ee.Stderr) > 0 {
err = errors.New(string(ee.Stderr))
}
return
}
exports := strings.Split(string(bytes.TrimSpace(output)), "\n")
if len(exports) != 1 {
err = fmt.Errorf("go list reported %d exports; expected 1", len(exports))
return
}
exportPath = exports[0]
})
return exportPath, err
})
}
return f.(func() (string, error))()
}
vendor/golang.org/x/tools/internal/gcimporter/gcimporter.go
Generated Vendored
+108
View File
@@ -0,0 +1,108 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file is a reduced copy of $GOROOT/src/go/internal/gcimporter/gcimporter.go.
// Package gcimporter provides various functions for reading
// gc-generated object files that can be used to implement the
// Importer interface defined by the Go 1.5 standard library package.
//
// The encoding is deterministic: if the encoder is applied twice to
// the same types.Package data structure, both encodings are equal.
// This property may be important to avoid spurious changes in
// applications such as build systems.
//
// However, the encoder is not necessarily idempotent. Importing an
// exported package may yield a types.Package that, while it
// represents the same set of Go types as the original, may differ in
// the details of its internal representation. Because of these
// differences, re-encoding the imported package may yield a
// different, but equally valid, encoding of the package.
package gcimporter // import "golang.org/x/tools/internal/gcimporter"
import (
"bufio"
"fmt"
"go/token"
"go/types"
"io"
"os"
)
const (
// Enable debug during development: it adds some additional checks, and
// prevents errors from being recovered.
debug = false
// If trace is set, debugging output is printed to std out.
trace = false
)
// Import imports a gc-generated package given its import path and srcDir, adds
// the corresponding package object to the packages map, and returns the object.
// The packages map must contain all packages already imported.
//
// Import is only used in tests.
func Import(fset *token.FileSet, packages map[string]*types.Package, path, srcDir string, lookup func(path string) (io.ReadCloser, error)) (pkg *types.Package, err error) {
var rc io.ReadCloser
var id string
if lookup != nil {
// With custom lookup specified, assume that caller has
// converted path to a canonical import path for use in the map.
if path == "unsafe" {
return types.Unsafe, nil
}
id = path
// No need to re-import if the package was imported completely before.
if pkg = packages[id]; pkg != nil && pkg.Complete() {
return
}
f, err := lookup(path)
if err != nil {
return nil, err
}
rc = f
} else {
var filename string
filename, id, err = FindPkg(path, srcDir)
if filename == "" {
if path == "unsafe" {
return types.Unsafe, nil
}
return nil, err
}
// no need to re-import if the package was imported completely before
if pkg = packages[id]; pkg != nil && pkg.Complete() {
return
}
// open file
f, err := os.Open(filename)
if err != nil {
return nil, err
}
defer func() {
if err != nil {
// add file name to error
err = fmt.Errorf("%s: %v", filename, err)
}
}()
rc = f
}
defer rc.Close()
buf := bufio.NewReader(rc)
data, err := ReadUnified(buf)
if err != nil {
err = fmt.Errorf("import %q: %v", path, err)
return
}
// unified: emitted by cmd/compile since go1.20.
_, pkg, err = UImportData(fset, packages, data, id)
return
}
vendor/golang.org/x/tools/internal/gcimporter/iexport.go
Generated Vendored
+1596
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File diff suppressed because it is too large. Load diff
vendor/golang.org/x/tools/internal/gcimporter/iimport.go
Generated Vendored
+1120
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File diff suppressed because it is too large. Load diff
vendor/golang.org/x/tools/internal/gcimporter/iimport_go122.go
Generated Vendored
+53
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@@ -0,0 +1,53 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.22 && !go1.24
package gcimporter
import (
"go/token"
"go/types"
"unsafe"
)
// TODO(rfindley): delete this workaround once go1.24 is assured.
func init() {
// Update markBlack so that it correctly sets the color
// of imported TypeNames.
//
// See the doc comment for markBlack for details.
type color uint32
const (
white color = iota
black
grey
)
type object struct {
_ *types.Scope
_ token.Pos
_ *types.Package
_ string
_ types.Type
_ uint32
color_ color
_ token.Pos
}
type typeName struct {
object
}
// If the size of types.TypeName changes, this will fail to compile.
const delta = int64(unsafe.Sizeof(typeName{})) - int64(unsafe.Sizeof(types.TypeName{}))
var _ [-delta * delta]int
markBlack = func(obj *types.TypeName) {
type uP = unsafe.Pointer
var ptr *typeName
*(*uP)(uP(&ptr)) = uP(obj)
ptr.color_ = black
}
}
vendor/golang.org/x/tools/internal/gcimporter/predeclared.go
Generated Vendored
+91
View File
@@ -0,0 +1,91 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gcimporter
import (
"go/types"
"sync"
)
// predecl is a cache for the predeclared types in types.Universe.
//
// Cache a distinct result based on the runtime value of any.
// The pointer value of the any type varies based on GODEBUG settings.
var predeclMu sync.Mutex
var predecl map[types.Type][]types.Type
func predeclared() []types.Type {
anyt := types.Universe.Lookup("any").Type()
predeclMu.Lock()
defer predeclMu.Unlock()
if pre, ok := predecl[anyt]; ok {
return pre
}
if predecl == nil {
predecl = make(map[types.Type][]types.Type)
}
decls := []types.Type{ // basic types
types.Typ[types.Bool],
types.Typ[types.Int],
types.Typ[types.Int8],
types.Typ[types.Int16],
types.Typ[types.Int32],
types.Typ[types.Int64],
types.Typ[types.Uint],
types.Typ[types.Uint8],
types.Typ[types.Uint16],
types.Typ[types.Uint32],
types.Typ[types.Uint64],
types.Typ[types.Uintptr],
types.Typ[types.Float32],
types.Typ[types.Float64],
types.Typ[types.Complex64],
types.Typ[types.Complex128],
types.Typ[types.String],
// basic type aliases
types.Universe.Lookup("byte").Type(),
types.Universe.Lookup("rune").Type(),
// error
types.Universe.Lookup("error").Type(),
// untyped types
types.Typ[types.UntypedBool],
types.Typ[types.UntypedInt],
types.Typ[types.UntypedRune],
types.Typ[types.UntypedFloat],
types.Typ[types.UntypedComplex],
types.Typ[types.UntypedString],
types.Typ[types.UntypedNil],
// package unsafe
types.Typ[types.UnsafePointer],
// invalid type
types.Typ[types.Invalid], // only appears in packages with errors
// used internally by gc; never used by this package or in .a files
anyType{},
// comparable
types.Universe.Lookup("comparable").Type(),
// any
anyt,
}
predecl[anyt] = decls
return decls
}
type anyType struct{}
func (t anyType) Underlying() types.Type { return t }
func (t anyType) String() string { return "any" }
vendor/golang.org/x/tools/internal/gcimporter/support.go
Generated Vendored
+30
View File
@@ -0,0 +1,30 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gcimporter
import (
"bufio"
"io"
"strconv"
"strings"
)
// Copy of $GOROOT/src/cmd/internal/archive.ReadHeader.
func readArchiveHeader(b *bufio.Reader, name string) int {
// architecture-independent object file output
const HeaderSize = 60
var buf [HeaderSize]byte
if _, err := io.ReadFull(b, buf[:]); err != nil {
return -1
}
aname := strings.Trim(string(buf[0:16]), " ")
if !strings.HasPrefix(aname, name) {
return -1
}
asize := strings.Trim(string(buf[48:58]), " ")
i, _ := strconv.Atoi(asize)
return i
}
vendor/golang.org/x/tools/internal/gcimporter/ureader_yes.go
Generated Vendored
+761
View File
@@ -0,0 +1,761 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Derived from go/internal/gcimporter/ureader.go
package gcimporter
import (
"fmt"
"go/token"
"go/types"
"sort"
"golang.org/x/tools/internal/aliases"
"golang.org/x/tools/internal/pkgbits"
"golang.org/x/tools/internal/typesinternal"
)
// A pkgReader holds the shared state for reading a unified IR package
// description.
type pkgReader struct {
pkgbits.PkgDecoder
fake fakeFileSet
ctxt *types.Context
imports map[string]*types.Package // previously imported packages, indexed by path
aliases bool // create types.Alias nodes
// lazily initialized arrays corresponding to the unified IR
// PosBase, Pkg, and Type sections, respectively.
posBases []string // position bases (i.e., file names)
pkgs []*types.Package
typs []types.Type
// laterFns holds functions that need to be invoked at the end of
// import reading.
laterFns []func()
// laterFors is used in case of 'type A B' to ensure that B is processed before A.
laterFors map[types.Type]int
// ifaces holds a list of constructed Interfaces, which need to have
// Complete called after importing is done.
ifaces []*types.Interface
}
// later adds a function to be invoked at the end of import reading.
func (pr *pkgReader) later(fn func()) {
pr.laterFns = append(pr.laterFns, fn)
}
// See cmd/compile/internal/noder.derivedInfo.
type derivedInfo struct {
idx pkgbits.Index
}
// See cmd/compile/internal/noder.typeInfo.
type typeInfo struct {
idx pkgbits.Index
derived bool
}
func UImportData(fset *token.FileSet, imports map[string]*types.Package, data []byte, path string) (_ int, pkg *types.Package, err error) {
if !debug {
defer func() {
if x := recover(); x != nil {
err = fmt.Errorf("internal error in importing %q (%v); please report an issue", path, x)
}
}()
}
s := string(data)
input := pkgbits.NewPkgDecoder(path, s)
pkg = readUnifiedPackage(fset, nil, imports, input)
return
}
// laterFor adds a function to be invoked at the end of import reading, and records the type that function is finishing.
func (pr *pkgReader) laterFor(t types.Type, fn func()) {
if pr.laterFors == nil {
pr.laterFors = make(map[types.Type]int)
}
pr.laterFors[t] = len(pr.laterFns)
pr.laterFns = append(pr.laterFns, fn)
}
// readUnifiedPackage reads a package description from the given
// unified IR export data decoder.
func readUnifiedPackage(fset *token.FileSet, ctxt *types.Context, imports map[string]*types.Package, input pkgbits.PkgDecoder) *types.Package {
pr := pkgReader{
PkgDecoder: input,
fake: fakeFileSet{
fset: fset,
files: make(map[string]*fileInfo),
},
ctxt: ctxt,
imports: imports,
aliases: aliases.Enabled(),
posBases: make([]string, input.NumElems(pkgbits.RelocPosBase)),
pkgs: make([]*types.Package, input.NumElems(pkgbits.RelocPkg)),
typs: make([]types.Type, input.NumElems(pkgbits.RelocType)),
}
defer pr.fake.setLines()
r := pr.newReader(pkgbits.RelocMeta, pkgbits.PublicRootIdx, pkgbits.SyncPublic)
pkg := r.pkg()
if r.Version().Has(pkgbits.HasInit) {
r.Bool()
}
for i, n := 0, r.Len(); i < n; i++ {
// As if r.obj(), but avoiding the Scope.Lookup call,
// to avoid eager loading of imports.
r.Sync(pkgbits.SyncObject)
if r.Version().Has(pkgbits.DerivedFuncInstance) {
assert(!r.Bool())
}
r.p.objIdx(r.Reloc(pkgbits.RelocObj))
assert(r.Len() == 0)
}
r.Sync(pkgbits.SyncEOF)
for _, fn := range pr.laterFns {
fn()
}
for _, iface := range pr.ifaces {
iface.Complete()
}
// Imports() of pkg are all of the transitive packages that were loaded.
var imps []*types.Package
for _, imp := range pr.pkgs {
if imp != nil && imp != pkg {
imps = append(imps, imp)
}
}
sort.Sort(byPath(imps))
pkg.SetImports(imps)
pkg.MarkComplete()
return pkg
}
// A reader holds the state for reading a single unified IR element
// within a package.
type reader struct {
pkgbits.Decoder
p *pkgReader
dict *readerDict
}
// A readerDict holds the state for type parameters that parameterize
// the current unified IR element.
type readerDict struct {
// bounds is a slice of typeInfos corresponding to the underlying
// bounds of the element's type parameters.
bounds []typeInfo
// tparams is a slice of the constructed TypeParams for the element.
tparams []*types.TypeParam
// derived is a slice of types derived from tparams, which may be
// instantiated while reading the current element.
derived []derivedInfo
derivedTypes []types.Type // lazily instantiated from derived
}
func (pr *pkgReader) newReader(k pkgbits.RelocKind, idx pkgbits.Index, marker pkgbits.SyncMarker) *reader {
return &reader{
Decoder: pr.NewDecoder(k, idx, marker),
p: pr,
}
}
func (pr *pkgReader) tempReader(k pkgbits.RelocKind, idx pkgbits.Index, marker pkgbits.SyncMarker) *reader {
return &reader{
Decoder: pr.TempDecoder(k, idx, marker),
p: pr,
}
}
func (pr *pkgReader) retireReader(r *reader) {
pr.RetireDecoder(&r.Decoder)
}
// @@@ Positions
func (r *reader) pos() token.Pos {
r.Sync(pkgbits.SyncPos)
if !r.Bool() {
return token.NoPos
}
// TODO(mdempsky): Delta encoding.
posBase := r.posBase()
line := r.Uint()
col := r.Uint()
return r.p.fake.pos(posBase, int(line), int(col))
}
func (r *reader) posBase() string {
return r.p.posBaseIdx(r.Reloc(pkgbits.RelocPosBase))
}
func (pr *pkgReader) posBaseIdx(idx pkgbits.Index) string {
if b := pr.posBases[idx]; b != "" {
return b
}
var filename string
{
r := pr.tempReader(pkgbits.RelocPosBase, idx, pkgbits.SyncPosBase)
// Within types2, position bases have a lot more details (e.g.,
// keeping track of where //line directives appeared exactly).
//
// For go/types, we just track the file name.
filename = r.String()
if r.Bool() { // file base
// Was: "b = token.NewTrimmedFileBase(filename, true)"
} else { // line base
pos := r.pos()
line := r.Uint()
col := r.Uint()
// Was: "b = token.NewLineBase(pos, filename, true, line, col)"
_, _, _ = pos, line, col
}
pr.retireReader(r)
}
b := filename
pr.posBases[idx] = b
return b
}
// @@@ Packages
func (r *reader) pkg() *types.Package {
r.Sync(pkgbits.SyncPkg)
return r.p.pkgIdx(r.Reloc(pkgbits.RelocPkg))
}
func (pr *pkgReader) pkgIdx(idx pkgbits.Index) *types.Package {
// TODO(mdempsky): Consider using some non-nil pointer to indicate
// the universe scope, so we don't need to keep re-reading it.
if pkg := pr.pkgs[idx]; pkg != nil {
return pkg
}
pkg := pr.newReader(pkgbits.RelocPkg, idx, pkgbits.SyncPkgDef).doPkg()
pr.pkgs[idx] = pkg
return pkg
}
func (r *reader) doPkg() *types.Package {
path := r.String()
switch path {
// cmd/compile emits path="main" for main packages because
// that's the linker symbol prefix it used; but we need
// the package's path as it would be reported by go list,
// hence "main" below.
// See test at go/packages.TestMainPackagePathInModeTypes.
case "", "main":
path = r.p.PkgPath()
case "builtin":
return nil // universe
case "unsafe":
return types.Unsafe
}
if pkg := r.p.imports[path]; pkg != nil {
return pkg
}
name := r.String()
pkg := types.NewPackage(path, name)
r.p.imports[path] = pkg
return pkg
}
// @@@ Types
func (r *reader) typ() types.Type {
return r.p.typIdx(r.typInfo(), r.dict)
}
func (r *reader) typInfo() typeInfo {
r.Sync(pkgbits.SyncType)
if r.Bool() {
return typeInfo{idx: pkgbits.Index(r.Len()), derived: true}
}
return typeInfo{idx: r.Reloc(pkgbits.RelocType), derived: false}
}
func (pr *pkgReader) typIdx(info typeInfo, dict *readerDict) types.Type {
idx := info.idx
var where *types.Type
if info.derived {
where = &dict.derivedTypes[idx]
idx = dict.derived[idx].idx
} else {
where = &pr.typs[idx]
}
if typ := *where; typ != nil {
return typ
}
var typ types.Type
{
r := pr.tempReader(pkgbits.RelocType, idx, pkgbits.SyncTypeIdx)
r.dict = dict
typ = r.doTyp()
assert(typ != nil)
pr.retireReader(r)
}
// See comment in pkgReader.typIdx explaining how this happens.
if prev := *where; prev != nil {
return prev
}
*where = typ
return typ
}
func (r *reader) doTyp() (res types.Type) {
switch tag := pkgbits.CodeType(r.Code(pkgbits.SyncType)); tag {
default:
errorf("unhandled type tag: %v", tag)
panic("unreachable")
case pkgbits.TypeBasic:
return types.Typ[r.Len()]
case pkgbits.TypeNamed:
obj, targs := r.obj()
name := obj.(*types.TypeName)
if len(targs) != 0 {
t, _ := types.Instantiate(r.p.ctxt, name.Type(), targs, false)
return t
}
return name.Type()
case pkgbits.TypeTypeParam:
return r.dict.tparams[r.Len()]
case pkgbits.TypeArray:
len := int64(r.Uint64())
return types.NewArray(r.typ(), len)
case pkgbits.TypeChan:
dir := types.ChanDir(r.Len())
return types.NewChan(dir, r.typ())
case pkgbits.TypeMap:
return types.NewMap(r.typ(), r.typ())
case pkgbits.TypePointer:
return types.NewPointer(r.typ())
case pkgbits.TypeSignature:
return r.signature(nil, nil, nil)
case pkgbits.TypeSlice:
return types.NewSlice(r.typ())
case pkgbits.TypeStruct:
return r.structType()
case pkgbits.TypeInterface:
return r.interfaceType()
case pkgbits.TypeUnion:
return r.unionType()
}
}
func (r *reader) structType() *types.Struct {
fields := make([]*types.Var, r.Len())
var tags []string
for i := range fields {
pos := r.pos()
pkg, name := r.selector()
ftyp := r.typ()
tag := r.String()
embedded := r.Bool()
fields[i] = types.NewField(pos, pkg, name, ftyp, embedded)
if tag != "" {
for len(tags) < i {
tags = append(tags, "")
}
tags = append(tags, tag)
}
}
return types.NewStruct(fields, tags)
}
func (r *reader) unionType() *types.Union {
terms := make([]*types.Term, r.Len())
for i := range terms {
terms[i] = types.NewTerm(r.Bool(), r.typ())
}
return types.NewUnion(terms)
}
func (r *reader) interfaceType() *types.Interface {
methods := make([]*types.Func, r.Len())
embeddeds := make([]types.Type, r.Len())
implicit := len(methods) == 0 && len(embeddeds) == 1 && r.Bool()
for i := range methods {
pos := r.pos()
pkg, name := r.selector()
mtyp := r.signature(nil, nil, nil)
methods[i] = types.NewFunc(pos, pkg, name, mtyp)
}
for i := range embeddeds {
embeddeds[i] = r.typ()
}
iface := types.NewInterfaceType(methods, embeddeds)
if implicit {
iface.MarkImplicit()
}
// We need to call iface.Complete(), but if there are any embedded
// defined types, then we may not have set their underlying
// interface type yet. So we need to defer calling Complete until
// after we've called SetUnderlying everywhere.
//
// TODO(mdempsky): After CL 424876 lands, it should be safe to call
// iface.Complete() immediately.
r.p.ifaces = append(r.p.ifaces, iface)
return iface
}
func (r *reader) signature(recv *types.Var, rtparams, tparams []*types.TypeParam) *types.Signature {
r.Sync(pkgbits.SyncSignature)
params := r.params()
results := r.params()
variadic := r.Bool()
return types.NewSignatureType(recv, rtparams, tparams, params, results, variadic)
}
func (r *reader) params() *types.Tuple {
r.Sync(pkgbits.SyncParams)
params := make([]*types.Var, r.Len())
for i := range params {
params[i] = r.param()
}
return types.NewTuple(params...)
}
func (r *reader) param() *types.Var {
r.Sync(pkgbits.SyncParam)
pos := r.pos()
pkg, name := r.localIdent()
typ := r.typ()
return types.NewParam(pos, pkg, name, typ)
}
// @@@ Objects
func (r *reader) obj() (types.Object, []types.Type) {
r.Sync(pkgbits.SyncObject)
if r.Version().Has(pkgbits.DerivedFuncInstance) {
assert(!r.Bool())
}
pkg, name := r.p.objIdx(r.Reloc(pkgbits.RelocObj))
obj := pkgScope(pkg).Lookup(name)
targs := make([]types.Type, r.Len())
for i := range targs {
targs[i] = r.typ()
}
return obj, targs
}
func (pr *pkgReader) objIdx(idx pkgbits.Index) (*types.Package, string) {
var objPkg *types.Package
var objName string
var tag pkgbits.CodeObj
{
rname := pr.tempReader(pkgbits.RelocName, idx, pkgbits.SyncObject1)
objPkg, objName = rname.qualifiedIdent()
assert(objName != "")
tag = pkgbits.CodeObj(rname.Code(pkgbits.SyncCodeObj))
pr.retireReader(rname)
}
if tag == pkgbits.ObjStub {
assert(objPkg == nil || objPkg == types.Unsafe)
return objPkg, objName
}
// Ignore local types promoted to global scope (#55110).
if _, suffix := splitVargenSuffix(objName); suffix != "" {
return objPkg, objName
}
if objPkg.Scope().Lookup(objName) == nil {
dict := pr.objDictIdx(idx)
r := pr.newReader(pkgbits.RelocObj, idx, pkgbits.SyncObject1)
r.dict = dict
declare := func(obj types.Object) {
objPkg.Scope().Insert(obj)
}
switch tag {
default:
panic("weird")
case pkgbits.ObjAlias:
pos := r.pos()
var tparams []*types.TypeParam
if r.Version().Has(pkgbits.AliasTypeParamNames) {
tparams = r.typeParamNames()
}
typ := r.typ()
declare(aliases.NewAlias(r.p.aliases, pos, objPkg, objName, typ, tparams))
case pkgbits.ObjConst:
pos := r.pos()
typ := r.typ()
val := r.Value()
declare(types.NewConst(pos, objPkg, objName, typ, val))
case pkgbits.ObjFunc:
pos := r.pos()
tparams := r.typeParamNames()
sig := r.signature(nil, nil, tparams)
declare(types.NewFunc(pos, objPkg, objName, sig))
case pkgbits.ObjType:
pos := r.pos()
obj := types.NewTypeName(pos, objPkg, objName, nil)
named := types.NewNamed(obj, nil, nil)
declare(obj)
named.SetTypeParams(r.typeParamNames())
setUnderlying := func(underlying types.Type) {
// If the underlying type is an interface, we need to
// duplicate its methods so we can replace the receiver
// parameter's type (#49906).
if iface, ok := types.Unalias(underlying).(*types.Interface); ok && iface.NumExplicitMethods() != 0 {
methods := make([]*types.Func, iface.NumExplicitMethods())
for i := range methods {
fn := iface.ExplicitMethod(i)
sig := fn.Type().(*types.Signature)
recv := types.NewVar(fn.Pos(), fn.Pkg(), "", named)
typesinternal.SetVarKind(recv, typesinternal.RecvVar)
methods[i] = types.NewFunc(fn.Pos(), fn.Pkg(), fn.Name(), types.NewSignatureType(recv, nil, nil, sig.Params(), sig.Results(), sig.Variadic()))
}
embeds := make([]types.Type, iface.NumEmbeddeds())
for i := range embeds {
embeds[i] = iface.EmbeddedType(i)
}
newIface := types.NewInterfaceType(methods, embeds)
r.p.ifaces = append(r.p.ifaces, newIface)
underlying = newIface
}
named.SetUnderlying(underlying)
}
// Since go.dev/cl/455279, we can assume rhs.Underlying() will
// always be non-nil. However, to temporarily support users of
// older snapshot releases, we continue to fallback to the old
// behavior for now.
//
// TODO(mdempsky): Remove fallback code and simplify after
// allowing time for snapshot users to upgrade.
rhs := r.typ()
if underlying := rhs.Underlying(); underlying != nil {
setUnderlying(underlying)
} else {
pk := r.p
pk.laterFor(named, func() {
// First be sure that the rhs is initialized, if it needs to be initialized.
delete(pk.laterFors, named) // prevent cycles
if i, ok := pk.laterFors[rhs]; ok {
f := pk.laterFns[i]
pk.laterFns[i] = func() {} // function is running now, so replace it with a no-op
f() // initialize RHS
}
setUnderlying(rhs.Underlying())
})
}
for i, n := 0, r.Len(); i < n; i++ {
named.AddMethod(r.method())
}
case pkgbits.ObjVar:
pos := r.pos()
typ := r.typ()
v := types.NewVar(pos, objPkg, objName, typ)
typesinternal.SetVarKind(v, typesinternal.PackageVar)
declare(v)
}
}
return objPkg, objName
}
func (pr *pkgReader) objDictIdx(idx pkgbits.Index) *readerDict {
var dict readerDict
{
r := pr.tempReader(pkgbits.RelocObjDict, idx, pkgbits.SyncObject1)
if implicits := r.Len(); implicits != 0 {
errorf("unexpected object with %v implicit type parameter(s)", implicits)
}
dict.bounds = make([]typeInfo, r.Len())
for i := range dict.bounds {
dict.bounds[i] = r.typInfo()
}
dict.derived = make([]derivedInfo, r.Len())
dict.derivedTypes = make([]types.Type, len(dict.derived))
for i := range dict.derived {
dict.derived[i] = derivedInfo{idx: r.Reloc(pkgbits.RelocType)}
if r.Version().Has(pkgbits.DerivedInfoNeeded) {
assert(!r.Bool())
}
}
pr.retireReader(r)
}
// function references follow, but reader doesn't need those
return &dict
}
func (r *reader) typeParamNames() []*types.TypeParam {
r.Sync(pkgbits.SyncTypeParamNames)
// Note: This code assumes it only processes objects without
// implement type parameters. This is currently fine, because
// reader is only used to read in exported declarations, which are
// always package scoped.
if len(r.dict.bounds) == 0 {
return nil
}
// Careful: Type parameter lists may have cycles. To allow for this,
// we construct the type parameter list in two passes: first we
// create all the TypeNames and TypeParams, then we construct and
// set the bound type.
r.dict.tparams = make([]*types.TypeParam, len(r.dict.bounds))
for i := range r.dict.bounds {
pos := r.pos()
pkg, name := r.localIdent()
tname := types.NewTypeName(pos, pkg, name, nil)
r.dict.tparams[i] = types.NewTypeParam(tname, nil)
}
typs := make([]types.Type, len(r.dict.bounds))
for i, bound := range r.dict.bounds {
typs[i] = r.p.typIdx(bound, r.dict)
}
// TODO(mdempsky): This is subtle, elaborate further.
//
// We have to save tparams outside of the closure, because
// typeParamNames() can be called multiple times with the same
// dictionary instance.
//
// Also, this needs to happen later to make sure SetUnderlying has
// been called.
//
// TODO(mdempsky): Is it safe to have a single "later" slice or do
// we need to have multiple passes? See comments on CL 386002 and
// go.dev/issue/52104.
tparams := r.dict.tparams
r.p.later(func() {
for i, typ := range typs {
tparams[i].SetConstraint(typ)
}
})
return r.dict.tparams
}
func (r *reader) method() *types.Func {
r.Sync(pkgbits.SyncMethod)
pos := r.pos()
pkg, name := r.selector()
rparams := r.typeParamNames()
sig := r.signature(r.param(), rparams, nil)
_ = r.pos() // TODO(mdempsky): Remove; this is a hacker for linker.go.
return types.NewFunc(pos, pkg, name, sig)
}
func (r *reader) qualifiedIdent() (*types.Package, string) { return r.ident(pkgbits.SyncSym) }
func (r *reader) localIdent() (*types.Package, string) { return r.ident(pkgbits.SyncLocalIdent) }
func (r *reader) selector() (*types.Package, string) { return r.ident(pkgbits.SyncSelector) }
func (r *reader) ident(marker pkgbits.SyncMarker) (*types.Package, string) {
r.Sync(marker)
return r.pkg(), r.String()
}
// pkgScope returns pkg.Scope().
// If pkg is nil, it returns types.Universe instead.
//
// TODO(mdempsky): Remove after x/tools can depend on Go 1.19.
func pkgScope(pkg *types.Package) *types.Scope {
if pkg != nil {
return pkg.Scope()
}
return types.Universe
}
// See cmd/compile/internal/types.SplitVargenSuffix.
func splitVargenSuffix(name string) (base, suffix string) {
i := len(name)
for i > 0 && name[i-1] >= '0' && name[i-1] <= '9' {
i--
}
const dot = "·"
if i >= len(dot) && name[i-len(dot):i] == dot {
i -= len(dot)
return name[:i], name[i:]
}
return name, ""
}
vendor/golang.org/x/tools/internal/gocommand/invoke.go
Generated Vendored
+567
View File
@@ -0,0 +1,567 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package gocommand is a helper for calling the go command.
package gocommand
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"log"
"os"
"os/exec"
"path/filepath"
"regexp"
"runtime"
"strconv"
"strings"
"sync"
"time"
"golang.org/x/tools/internal/event"
"golang.org/x/tools/internal/event/keys"
"golang.org/x/tools/internal/event/label"
)
// A Runner will run go command invocations and serialize
// them if it sees a concurrency error.
type Runner struct {
// once guards the runner initialization.
once sync.Once
// inFlight tracks available workers.
inFlight chan struct{}
// serialized guards the ability to run a go command serially,
// to avoid deadlocks when claiming workers.
serialized chan struct{}
}
const maxInFlight = 10
func (runner *Runner) initialize() {
runner.once.Do(func() {
runner.inFlight = make(chan struct{}, maxInFlight)
runner.serialized = make(chan struct{}, 1)
})
}
// 1.13: go: updates to go.mod needed, but contents have changed
// 1.14: go: updating go.mod: existing contents have changed since last read
var modConcurrencyError = regexp.MustCompile(`go:.*go.mod.*contents have changed`)
// event keys for go command invocations
var (
verb = keys.NewString("verb", "go command verb")
directory = keys.NewString("directory", "")
)
func invLabels(inv Invocation) []label.Label {
return []label.Label{verb.Of(inv.Verb), directory.Of(inv.WorkingDir)}
}
// Run is a convenience wrapper around RunRaw.
// It returns only stdout and a "friendly" error.
func (runner *Runner) Run(ctx context.Context, inv Invocation) (*bytes.Buffer, error) {
ctx, done := event.Start(ctx, "gocommand.Runner.Run", invLabels(inv)...)
defer done()
stdout, _, friendly, _ := runner.RunRaw(ctx, inv)
return stdout, friendly
}
// RunPiped runs the invocation serially, always waiting for any concurrent
// invocations to complete first.
func (runner *Runner) RunPiped(ctx context.Context, inv Invocation, stdout, stderr io.Writer) error {
ctx, done := event.Start(ctx, "gocommand.Runner.RunPiped", invLabels(inv)...)
defer done()
_, err := runner.runPiped(ctx, inv, stdout, stderr)
return err
}
// RunRaw runs the invocation, serializing requests only if they fight over
// go.mod changes.
// Postcondition: both error results have same nilness.
func (runner *Runner) RunRaw(ctx context.Context, inv Invocation) (*bytes.Buffer, *bytes.Buffer, error, error) {
ctx, done := event.Start(ctx, "gocommand.Runner.RunRaw", invLabels(inv)...)
defer done()
// Make sure the runner is always initialized.
runner.initialize()
// First, try to run the go command concurrently.
stdout, stderr, friendlyErr, err := runner.runConcurrent(ctx, inv)
// If we encounter a load concurrency error, we need to retry serially.
if friendlyErr != nil && modConcurrencyError.MatchString(friendlyErr.Error()) {
event.Error(ctx, "Load concurrency error, will retry serially", err)
// Run serially by calling runPiped.
stdout.Reset()
stderr.Reset()
friendlyErr, err = runner.runPiped(ctx, inv, stdout, stderr)
}
return stdout, stderr, friendlyErr, err
}
// Postcondition: both error results have same nilness.
func (runner *Runner) runConcurrent(ctx context.Context, inv Invocation) (*bytes.Buffer, *bytes.Buffer, error, error) {
// Wait for 1 worker to become available.
select {
case <-ctx.Done():
return nil, nil, ctx.Err(), ctx.Err()
case runner.inFlight <- struct{}{}:
defer func() { <-runner.inFlight }()
}
stdout, stderr := &bytes.Buffer{}, &bytes.Buffer{}
friendlyErr, err := inv.runWithFriendlyError(ctx, stdout, stderr)
return stdout, stderr, friendlyErr, err
}
// Postcondition: both error results have same nilness.
func (runner *Runner) runPiped(ctx context.Context, inv Invocation, stdout, stderr io.Writer) (error, error) {
// Make sure the runner is always initialized.
runner.initialize()
// Acquire the serialization lock. This avoids deadlocks between two
// runPiped commands.
select {
case <-ctx.Done():
return ctx.Err(), ctx.Err()
case runner.serialized <- struct{}{}:
defer func() { <-runner.serialized }()
}
// Wait for all in-progress go commands to return before proceeding,
// to avoid load concurrency errors.
for range maxInFlight {
select {
case <-ctx.Done():
return ctx.Err(), ctx.Err()
case runner.inFlight <- struct{}{}:
// Make sure we always "return" any workers we took.
defer func() { <-runner.inFlight }()
}
}
return inv.runWithFriendlyError(ctx, stdout, stderr)
}
// An Invocation represents a call to the go command.
type Invocation struct {
Verb string
Args []string
BuildFlags []string
// If ModFlag is set, the go command is invoked with -mod=ModFlag.
// TODO(rfindley): remove, in favor of Args.
ModFlag string
// If ModFile is set, the go command is invoked with -modfile=ModFile.
// TODO(rfindley): remove, in favor of Args.
ModFile string
// Overlay is the name of the JSON overlay file that describes
// unsaved editor buffers; see [WriteOverlays].
// If set, the go command is invoked with -overlay=Overlay.
// TODO(rfindley): remove, in favor of Args.
Overlay string
// If CleanEnv is set, the invocation will run only with the environment
// in Env, not starting with os.Environ.
CleanEnv bool
Env []string
WorkingDir string
Logf func(format string, args ...any)
}
// Postcondition: both error results have same nilness.
func (i *Invocation) runWithFriendlyError(ctx context.Context, stdout, stderr io.Writer) (friendlyError error, rawError error) {
rawError = i.run(ctx, stdout, stderr)
if rawError != nil {
friendlyError = rawError
// Check for 'go' executable not being found.
if ee, ok := rawError.(*exec.Error); ok && ee.Err == exec.ErrNotFound {
friendlyError = fmt.Errorf("go command required, not found: %v", ee)
}
if ctx.Err() != nil {
friendlyError = ctx.Err()
}
friendlyError = fmt.Errorf("err: %v: stderr: %s", friendlyError, stderr)
}
return
}
// logf logs if i.Logf is non-nil.
func (i *Invocation) logf(format string, args ...any) {
if i.Logf != nil {
i.Logf(format, args...)
}
}
func (i *Invocation) run(ctx context.Context, stdout, stderr io.Writer) error {
goArgs := []string{i.Verb}
appendModFile := func() {
if i.ModFile != "" {
goArgs = append(goArgs, "-modfile="+i.ModFile)
}
}
appendModFlag := func() {
if i.ModFlag != "" {
goArgs = append(goArgs, "-mod="+i.ModFlag)
}
}
appendOverlayFlag := func() {
if i.Overlay != "" {
goArgs = append(goArgs, "-overlay="+i.Overlay)
}
}
switch i.Verb {
case "env", "version":
goArgs = append(goArgs, i.Args...)
case "mod":
// mod needs the sub-verb before flags.
goArgs = append(goArgs, i.Args[0])
appendModFile()
goArgs = append(goArgs, i.Args[1:]...)
case "get":
goArgs = append(goArgs, i.BuildFlags...)
appendModFile()
goArgs = append(goArgs, i.Args...)
default: // notably list and build.
goArgs = append(goArgs, i.BuildFlags...)
appendModFile()
appendModFlag()
appendOverlayFlag()
goArgs = append(goArgs, i.Args...)
}
cmd := exec.Command("go", goArgs...)
cmd.Stdout = stdout
cmd.Stderr = stderr
// https://go.dev/issue/59541: don't wait forever copying stderr
// after the command has exited.
// After CL 484741 we copy stdout manually, so we we'll stop reading that as
// soon as ctx is done. However, we also don't want to wait around forever
// for stderr. Give a much-longer-than-reasonable delay and then assume that
// something has wedged in the kernel or runtime.
cmd.WaitDelay = 30 * time.Second
// The cwd gets resolved to the real path. On Darwin, where
// /tmp is a symlink, this breaks anything that expects the
// working directory to keep the original path, including the
// go command when dealing with modules.
//
// os.Getwd has a special feature where if the cwd and the PWD
// are the same node then it trusts the PWD, so by setting it
// in the env for the child process we fix up all the paths
// returned by the go command.
if !i.CleanEnv {
cmd.Env = os.Environ()
}
cmd.Env = append(cmd.Env, i.Env...)
if i.WorkingDir != "" {
cmd.Env = append(cmd.Env, "PWD="+i.WorkingDir)
cmd.Dir = i.WorkingDir
}
debugStr := cmdDebugStr(cmd)
i.logf("starting %v", debugStr)
start := time.Now()
defer func() {
i.logf("%s for %v", time.Since(start), debugStr)
}()
return runCmdContext(ctx, cmd)
}
// DebugHangingGoCommands may be set by tests to enable additional
// instrumentation (including panics) for debugging hanging Go commands.
//
// See golang/go#54461 for details.
var DebugHangingGoCommands = false
// runCmdContext is like exec.CommandContext except it sends os.Interrupt
// before os.Kill.
func runCmdContext(ctx context.Context, cmd *exec.Cmd) (err error) {
// If cmd.Stdout is not an *os.File, the exec package will create a pipe and
// copy it to the Writer in a goroutine until the process has finished and
// either the pipe reaches EOF or command's WaitDelay expires.
//
// However, the output from 'go list' can be quite large, and we don't want to
// keep reading (and allocating buffers) if we've already decided we don't
// care about the output. We don't want to wait for the process to finish, and
// we don't wait to wait for the WaitDelay to expire either.
//
// Instead, if cmd.Stdout requires a copying goroutine we explicitly replace
// it with a pipe (which is an *os.File), which we can close in order to stop
// copying output as soon as we realize we don't care about it.
var stdoutW *os.File
if cmd.Stdout != nil {
if _, ok := cmd.Stdout.(*os.File); !ok {
var stdoutR *os.File
stdoutR, stdoutW, err = os.Pipe()
if err != nil {
return err
}
prevStdout := cmd.Stdout
cmd.Stdout = stdoutW
stdoutErr := make(chan error, 1)
go func() {
_, err := io.Copy(prevStdout, stdoutR)
if err != nil {
err = fmt.Errorf("copying stdout: %w", err)
}
stdoutErr <- err
}()
defer func() {
// We started a goroutine to copy a stdout pipe.
// Wait for it to finish, or terminate it if need be.
var err2 error
select {
case err2 = <-stdoutErr:
stdoutR.Close()
case <-ctx.Done():
stdoutR.Close()
// Per https://pkg.go.dev/os#File.Close, the call to stdoutR.Close
// should cause the Read call in io.Copy to unblock and return
// immediately, but we still need to receive from stdoutErr to confirm
// that it has happened.
<-stdoutErr
err2 = ctx.Err()
}
if err == nil {
err = err2
}
}()
// Per https://pkg.go.dev/os/exec#Cmd, “If Stdout and Stderr are the
// same writer, and have a type that can be compared with ==, at most
// one goroutine at a time will call Write.”
//
// Since we're starting a goroutine that writes to cmd.Stdout, we must
// also update cmd.Stderr so that it still holds.
func() {
defer func() { recover() }()
if cmd.Stderr == prevStdout {
cmd.Stderr = cmd.Stdout
}
}()
}
}
startTime := time.Now()
err = cmd.Start()
if stdoutW != nil {
// The child process has inherited the pipe file,
// so close the copy held in this process.
stdoutW.Close()
stdoutW = nil
}
if err != nil {
return err
}
resChan := make(chan error, 1)
go func() {
resChan <- cmd.Wait()
}()
// If we're interested in debugging hanging Go commands, stop waiting after a
// minute and panic with interesting information.
debug := DebugHangingGoCommands
if debug {
timer := time.NewTimer(1 * time.Minute)
defer timer.Stop()
select {
case err := <-resChan:
return err
case <-timer.C:
// HandleHangingGoCommand terminates this process.
// Pass off resChan in case we can collect the command error.
handleHangingGoCommand(startTime, cmd, resChan)
case <-ctx.Done():
}
} else {
select {
case err := <-resChan:
return err
case <-ctx.Done():
}
}
// Cancelled. Interrupt and see if it ends voluntarily.
if err := cmd.Process.Signal(os.Interrupt); err == nil {
// (We used to wait only 1s but this proved
// fragile on loaded builder machines.)
timer := time.NewTimer(5 * time.Second)
defer timer.Stop()
select {
case err := <-resChan:
return err
case <-timer.C:
}
}
// Didn't shut down in response to interrupt. Kill it hard.
if err := cmd.Process.Kill(); err != nil && !errors.Is(err, os.ErrProcessDone) && debug {
log.Printf("error killing the Go command: %v", err)
}
return <-resChan
}
// handleHangingGoCommand outputs debugging information to help diagnose the
// cause of a hanging Go command, and then exits with log.Fatalf.
func handleHangingGoCommand(start time.Time, cmd *exec.Cmd, resChan chan error) {
switch runtime.GOOS {
case "linux", "darwin", "freebsd", "netbsd", "openbsd":
fmt.Fprintln(os.Stderr, `DETECTED A HANGING GO COMMAND
The gopls test runner has detected a hanging go command. In order to debug
this, the output of ps and lsof/fstat is printed below.
See golang/go#54461 for more details.`)
fmt.Fprintln(os.Stderr, "\nps axo ppid,pid,command:")
fmt.Fprintln(os.Stderr, "-------------------------")
psCmd := exec.Command("ps", "axo", "ppid,pid,command")
psCmd.Stdout = os.Stderr
psCmd.Stderr = os.Stderr
if err := psCmd.Run(); err != nil {
log.Printf("Handling hanging Go command: running ps: %v", err)
}
listFiles := "lsof"
if runtime.GOOS == "freebsd" || runtime.GOOS == "netbsd" {
listFiles = "fstat"
}
fmt.Fprintln(os.Stderr, "\n"+listFiles+":")
fmt.Fprintln(os.Stderr, "-----")
listFilesCmd := exec.Command(listFiles)
listFilesCmd.Stdout = os.Stderr
listFilesCmd.Stderr = os.Stderr
if err := listFilesCmd.Run(); err != nil {
log.Printf("Handling hanging Go command: running %s: %v", listFiles, err)
}
// Try to extract information about the slow go process by issuing a SIGQUIT.
if err := cmd.Process.Signal(sigStuckProcess); err == nil {
select {
case err := <-resChan:
stderr := "not a bytes.Buffer"
if buf, _ := cmd.Stderr.(*bytes.Buffer); buf != nil {
stderr = buf.String()
}
log.Printf("Quit hanging go command:\n\terr:%v\n\tstderr:\n%v\n\n", err, stderr)
case <-time.After(5 * time.Second):
}
} else {
log.Printf("Sending signal %d to hanging go command: %v", sigStuckProcess, err)
}
}
log.Fatalf("detected hanging go command (golang/go#54461); waited %s\n\tcommand:%s\n\tpid:%d", time.Since(start), cmd, cmd.Process.Pid)
}
func cmdDebugStr(cmd *exec.Cmd) string {
env := make(map[string]string)
for _, kv := range cmd.Env {
split := strings.SplitN(kv, "=", 2)
if len(split) == 2 {
k, v := split[0], split[1]
env[k] = v
}
}
var args []string
for _, arg := range cmd.Args {
quoted := strconv.Quote(arg)
if quoted[1:len(quoted)-1] != arg || strings.Contains(arg, " ") {
args = append(args, quoted)
} else {
args = append(args, arg)
}
}
return fmt.Sprintf("GOROOT=%v GOPATH=%v GO111MODULE=%v GOPROXY=%v PWD=%v %v", env["GOROOT"], env["GOPATH"], env["GO111MODULE"], env["GOPROXY"], env["PWD"], strings.Join(args, " "))
}
// WriteOverlays writes each value in the overlay (see the Overlay
// field of go/packages.Config) to a temporary file and returns the name
// of a JSON file describing the mapping that is suitable for the "go
// list -overlay" flag.
//
// On success, the caller must call the cleanup function exactly once
// when the files are no longer needed.
func WriteOverlays(overlay map[string][]byte) (filename string, cleanup func(), err error) {
// Do nothing if there are no overlays in the config.
if len(overlay) == 0 {
return "", func() {}, nil
}
dir, err := os.MkdirTemp("", "gocommand-*")
if err != nil {
return "", nil, err
}
// The caller must clean up this directory,
// unless this function returns an error.
// (The cleanup operand of each return
// statement below is ignored.)
defer func() {
cleanup = func() {
os.RemoveAll(dir)
}
if err != nil {
cleanup()
cleanup = nil
}
}()
// Write each map entry to a temporary file.
overlays := make(map[string]string)
for k, v := range overlay {
// Use a unique basename for each file (001-foo.go),
// to avoid creating nested directories.
base := fmt.Sprintf("%d-%s", 1+len(overlays), filepath.Base(k))
filename := filepath.Join(dir, base)
err := os.WriteFile(filename, v, 0666)
if err != nil {
return "", nil, err
}
overlays[k] = filename
}
// Write the JSON overlay file that maps logical file names to temp files.
//
// OverlayJSON is the format overlay files are expected to be in.
// The Replace map maps from overlaid paths to replacement paths:
// the Go command will forward all reads trying to open
// each overlaid path to its replacement path, or consider the overlaid
// path not to exist if the replacement path is empty.
//
// From golang/go#39958.
type OverlayJSON struct {
Replace map[string]string `json:"replace,omitempty"`
}
b, err := json.Marshal(OverlayJSON{Replace: overlays})
if err != nil {
return "", nil, err
}
filename = filepath.Join(dir, "overlay.json")
if err := os.WriteFile(filename, b, 0666); err != nil {
return "", nil, err
}
return filename, nil, nil
}
vendor/golang.org/x/tools/internal/gocommand/invoke_notunix.go
Generated Vendored
+13
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@@ -0,0 +1,13 @@
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !unix
package gocommand
import "os"
// sigStuckProcess is the signal to send to kill a hanging subprocess.
// On Unix we send SIGQUIT, but on non-Unix we only have os.Kill.
var sigStuckProcess = os.Kill
vendor/golang.org/x/tools/internal/gocommand/invoke_unix.go
Generated Vendored
+13
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@@ -0,0 +1,13 @@
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build unix
package gocommand
import "syscall"
// Sigstuckprocess is the signal to send to kill a hanging subprocess.
// Send SIGQUIT to get a stack trace.
var sigStuckProcess = syscall.SIGQUIT
vendor/golang.org/x/tools/internal/gocommand/vendor.go
Generated Vendored
+163
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@@ -0,0 +1,163 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gocommand
import (
"bytes"
"context"
"fmt"
"os"
"path/filepath"
"regexp"
"strings"
"time"
"golang.org/x/mod/semver"
)
// ModuleJSON holds information about a module.
type ModuleJSON struct {
Path string // module path
Version string // module version
Versions []string // available module versions (with -versions)
Replace *ModuleJSON // replaced by this module
Time *time.Time // time version was created
Update *ModuleJSON // available update, if any (with -u)
Main bool // is this the main module?
Indirect bool // is this module only an indirect dependency of main module?
Dir string // directory holding files for this module, if any
GoMod string // path to go.mod file used when loading this module, if any
GoVersion string // go version used in module
}
var modFlagRegexp = regexp.MustCompile(`-mod[ =](\w+)`)
// VendorEnabled reports whether vendoring is enabled. It takes a *Runner to execute Go commands
// with the supplied context.Context and Invocation. The Invocation can contain pre-defined fields,
// of which only Verb and Args are modified to run the appropriate Go command.
// Inspired by setDefaultBuildMod in modload/init.go
func VendorEnabled(ctx context.Context, inv Invocation, r *Runner) (bool, *ModuleJSON, error) {
mainMod, go114, err := getMainModuleAnd114(ctx, inv, r)
if err != nil {
return false, nil, err
}
// We check the GOFLAGS to see if there is anything overridden or not.
inv.Verb = "env"
inv.Args = []string{"GOFLAGS"}
stdout, err := r.Run(ctx, inv)
if err != nil {
return false, nil, err
}
goflags := string(bytes.TrimSpace(stdout.Bytes()))
matches := modFlagRegexp.FindStringSubmatch(goflags)
var modFlag string
if len(matches) != 0 {
modFlag = matches[1]
}
// Don't override an explicit '-mod=' argument.
if modFlag == "vendor" {
return true, mainMod, nil
} else if modFlag != "" {
return false, nil, nil
}
if mainMod == nil || !go114 {
return false, nil, nil
}
// Check 1.14's automatic vendor mode.
if fi, err := os.Stat(filepath.Join(mainMod.Dir, "vendor")); err == nil && fi.IsDir() {
if mainMod.GoVersion != "" && semver.Compare("v"+mainMod.GoVersion, "v1.14") >= 0 {
// The Go version is at least 1.14, and a vendor directory exists.
// Set -mod=vendor by default.
return true, mainMod, nil
}
}
return false, nil, nil
}
// getMainModuleAnd114 gets one of the main modules' information and whether the
// go command in use is 1.14+. This is the information needed to figure out
// if vendoring should be enabled.
func getMainModuleAnd114(ctx context.Context, inv Invocation, r *Runner) (*ModuleJSON, bool, error) {
const format = `{{.Path}}
{{.Dir}}
{{.GoMod}}
{{.GoVersion}}
{{range context.ReleaseTags}}{{if eq . "go1.14"}}{{.}}{{end}}{{end}}
`
inv.Verb = "list"
inv.Args = []string{"-m", "-f", format}
stdout, err := r.Run(ctx, inv)
if err != nil {
return nil, false, err
}
lines := strings.Split(stdout.String(), "\n")
if len(lines) < 5 {
return nil, false, fmt.Errorf("unexpected stdout: %q", stdout.String())
}
mod := &ModuleJSON{
Path: lines[0],
Dir: lines[1],
GoMod: lines[2],
GoVersion: lines[3],
Main: true,
}
return mod, lines[4] == "go1.14", nil
}
// WorkspaceVendorEnabled reports whether workspace vendoring is enabled. It takes a *Runner to execute Go commands
// with the supplied context.Context and Invocation. The Invocation can contain pre-defined fields,
// of which only Verb and Args are modified to run the appropriate Go command.
// Inspired by setDefaultBuildMod in modload/init.go
func WorkspaceVendorEnabled(ctx context.Context, inv Invocation, r *Runner) (bool, []*ModuleJSON, error) {
inv.Verb = "env"
inv.Args = []string{"GOWORK"}
stdout, err := r.Run(ctx, inv)
if err != nil {
return false, nil, err
}
goWork := string(bytes.TrimSpace(stdout.Bytes()))
if fi, err := os.Stat(filepath.Join(filepath.Dir(goWork), "vendor")); err == nil && fi.IsDir() {
mainMods, err := getWorkspaceMainModules(ctx, inv, r)
if err != nil {
return false, nil, err
}
return true, mainMods, nil
}
return false, nil, nil
}
// getWorkspaceMainModules gets the main modules' information.
// This is the information needed to figure out if vendoring should be enabled.
func getWorkspaceMainModules(ctx context.Context, inv Invocation, r *Runner) ([]*ModuleJSON, error) {
const format = `{{.Path}}
{{.Dir}}
{{.GoMod}}
{{.GoVersion}}
`
inv.Verb = "list"
inv.Args = []string{"-m", "-f", format}
stdout, err := r.Run(ctx, inv)
if err != nil {
return nil, err
}
lines := strings.Split(strings.TrimSuffix(stdout.String(), "\n"), "\n")
if len(lines) < 4 {
return nil, fmt.Errorf("unexpected stdout: %q", stdout.String())
}
mods := make([]*ModuleJSON, 0, len(lines)/4)
for i := 0; i < len(lines); i += 4 {
mods = append(mods, &ModuleJSON{
Path: lines[i],
Dir: lines[i+1],
GoMod: lines[i+2],
GoVersion: lines[i+3],
Main: true,
})
}
return mods, nil
}
vendor/golang.org/x/tools/internal/gocommand/version.go
Generated Vendored
+71
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@@ -0,0 +1,71 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gocommand
import (
"context"
"fmt"
"regexp"
"strings"
)
// GoVersion reports the minor version number of the highest release
// tag built into the go command on the PATH.
//
// Note that this may be higher than the version of the go tool used
// to build this application, and thus the versions of the standard
// go/{scanner,parser,ast,types} packages that are linked into it.
// In that case, callers should either downgrade to the version of
// go used to build the application, or report an error that the
// application is too old to use the go command on the PATH.
func GoVersion(ctx context.Context, inv Invocation, r *Runner) (int, error) {
inv.Verb = "list"
inv.Args = []string{"-e", "-f", `{{context.ReleaseTags}}`, `--`, `unsafe`}
inv.BuildFlags = nil // This is not a build command.
inv.ModFlag = ""
inv.ModFile = ""
inv.Env = append(inv.Env[:len(inv.Env):len(inv.Env)], "GO111MODULE=off")
stdoutBytes, err := r.Run(ctx, inv)
if err != nil {
return 0, err
}
stdout := stdoutBytes.String()
if len(stdout) < 3 {
return 0, fmt.Errorf("bad ReleaseTags output: %q", stdout)
}
// Split up "[go1.1 go1.15]" and return highest go1.X value.
tags := strings.Fields(stdout[1 : len(stdout)-2])
for i := len(tags) - 1; i >= 0; i-- {
var version int
if _, err := fmt.Sscanf(tags[i], "go1.%d", &version); err != nil {
continue
}
return version, nil
}
return 0, fmt.Errorf("no parseable ReleaseTags in %v", tags)
}
// GoVersionOutput returns the complete output of the go version command.
func GoVersionOutput(ctx context.Context, inv Invocation, r *Runner) (string, error) {
inv.Verb = "version"
goVersion, err := r.Run(ctx, inv)
if err != nil {
return "", err
}
return goVersion.String(), nil
}
// ParseGoVersionOutput extracts the Go version string
// from the output of the "go version" command.
// Given an unrecognized form, it returns an empty string.
func ParseGoVersionOutput(data string) string {
re := regexp.MustCompile(`^go version (go\S+|devel \S+)`)
m := re.FindStringSubmatch(data)
if len(m) != 2 {
return "" // unrecognized version
}
return m[1]
}
vendor/golang.org/x/tools/internal/packagesinternal/packages.go
Generated Vendored
+23
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@@ -0,0 +1,23 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package packagesinternal exposes internal-only fields from go/packages.
package packagesinternal
import "fmt"
var GetDepsErrors = func(p any) []*PackageError { return nil }
type PackageError struct {
ImportStack []string // shortest path from package named on command line to this one
Pos string // position of error (if present, file:line:col)
Err string // the error itself
}
func (err PackageError) String() string {
return fmt.Sprintf("%s: %s (import stack: %s)", err.Pos, err.Err, err.ImportStack)
}
var TypecheckCgo int
var DepsErrors int // must be set as a LoadMode to call GetDepsErrors
vendor/golang.org/x/tools/internal/pkgbits/codes.go
Generated Vendored
+77
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@@ -0,0 +1,77 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
// A Code is an enum value that can be encoded into bitstreams.
//
// Code types are preferable for enum types, because they allow
// Decoder to detect desyncs.
type Code interface {
// Marker returns the SyncMarker for the Code's dynamic type.
Marker() SyncMarker
// Value returns the Code's ordinal value.
Value() int
}
// A CodeVal distinguishes among go/constant.Value encodings.
type CodeVal int
func (c CodeVal) Marker() SyncMarker { return SyncVal }
func (c CodeVal) Value() int { return int(c) }
// Note: These values are public and cannot be changed without
// updating the go/types importers.
const (
ValBool CodeVal = iota
ValString
ValInt64
ValBigInt
ValBigRat
ValBigFloat
)
// A CodeType distinguishes among go/types.Type encodings.
type CodeType int
func (c CodeType) Marker() SyncMarker { return SyncType }
func (c CodeType) Value() int { return int(c) }
// Note: These values are public and cannot be changed without
// updating the go/types importers.
const (
TypeBasic CodeType = iota
TypeNamed
TypePointer
TypeSlice
TypeArray
TypeChan
TypeMap
TypeSignature
TypeStruct
TypeInterface
TypeUnion
TypeTypeParam
)
// A CodeObj distinguishes among go/types.Object encodings.
type CodeObj int
func (c CodeObj) Marker() SyncMarker { return SyncCodeObj }
func (c CodeObj) Value() int { return int(c) }
// Note: These values are public and cannot be changed without
// updating the go/types importers.
const (
ObjAlias CodeObj = iota
ObjConst
ObjType
ObjFunc
ObjVar
ObjStub
)
vendor/golang.org/x/tools/internal/pkgbits/decoder.go
Generated Vendored
+519
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@@ -0,0 +1,519 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
import (
"encoding/binary"
"errors"
"fmt"
"go/constant"
"go/token"
"io"
"math/big"
"os"
"runtime"
"strings"
)
// A PkgDecoder provides methods for decoding a package's Unified IR
// export data.
type PkgDecoder struct {
// version is the file format version.
version Version
// sync indicates whether the file uses sync markers.
sync bool
// pkgPath is the package path for the package to be decoded.
//
// TODO(mdempsky): Remove; unneeded since CL 391014.
pkgPath string
// elemData is the full data payload of the encoded package.
// Elements are densely and contiguously packed together.
//
// The last 8 bytes of elemData are the package fingerprint.
elemData string
// elemEnds stores the byte-offset end positions of element
// bitstreams within elemData.
//
// For example, element I's bitstream data starts at elemEnds[I-1]
// (or 0, if I==0) and ends at elemEnds[I].
//
// Note: elemEnds is indexed by absolute indices, not
// section-relative indices.
elemEnds []uint32
// elemEndsEnds stores the index-offset end positions of relocation
// sections within elemEnds.
//
// For example, section K's end positions start at elemEndsEnds[K-1]
// (or 0, if K==0) and end at elemEndsEnds[K].
elemEndsEnds [numRelocs]uint32
scratchRelocEnt []RelocEnt
}
// PkgPath returns the package path for the package
//
// TODO(mdempsky): Remove; unneeded since CL 391014.
func (pr *PkgDecoder) PkgPath() string { return pr.pkgPath }
// SyncMarkers reports whether pr uses sync markers.
func (pr *PkgDecoder) SyncMarkers() bool { return pr.sync }
// NewPkgDecoder returns a PkgDecoder initialized to read the Unified
// IR export data from input. pkgPath is the package path for the
// compilation unit that produced the export data.
func NewPkgDecoder(pkgPath, input string) PkgDecoder {
pr := PkgDecoder{
pkgPath: pkgPath,
}
// TODO(mdempsky): Implement direct indexing of input string to
// avoid copying the position information.
r := strings.NewReader(input)
var ver uint32
assert(binary.Read(r, binary.LittleEndian, &ver) == nil)
pr.version = Version(ver)
if pr.version >= numVersions {
panic(fmt.Errorf("cannot decode %q, export data version %d is greater than maximum supported version %d", pkgPath, pr.version, numVersions-1))
}
if pr.version.Has(Flags) {
var flags uint32
assert(binary.Read(r, binary.LittleEndian, &flags) == nil)
pr.sync = flags&flagSyncMarkers != 0
}
assert(binary.Read(r, binary.LittleEndian, pr.elemEndsEnds[:]) == nil)
pr.elemEnds = make([]uint32, pr.elemEndsEnds[len(pr.elemEndsEnds)-1])
assert(binary.Read(r, binary.LittleEndian, pr.elemEnds[:]) == nil)
pos, err := r.Seek(0, io.SeekCurrent)
assert(err == nil)
pr.elemData = input[pos:]
const fingerprintSize = 8
assert(len(pr.elemData)-fingerprintSize == int(pr.elemEnds[len(pr.elemEnds)-1]))
return pr
}
// NumElems returns the number of elements in section k.
func (pr *PkgDecoder) NumElems(k RelocKind) int {
count := int(pr.elemEndsEnds[k])
if k > 0 {
count -= int(pr.elemEndsEnds[k-1])
}
return count
}
// TotalElems returns the total number of elements across all sections.
func (pr *PkgDecoder) TotalElems() int {
return len(pr.elemEnds)
}
// Fingerprint returns the package fingerprint.
func (pr *PkgDecoder) Fingerprint() [8]byte {
var fp [8]byte
copy(fp[:], pr.elemData[len(pr.elemData)-8:])
return fp
}
// AbsIdx returns the absolute index for the given (section, index)
// pair.
func (pr *PkgDecoder) AbsIdx(k RelocKind, idx Index) int {
absIdx := int(idx)
if k > 0 {
absIdx += int(pr.elemEndsEnds[k-1])
}
if absIdx >= int(pr.elemEndsEnds[k]) {
panicf("%v:%v is out of bounds; %v", k, idx, pr.elemEndsEnds)
}
return absIdx
}
// DataIdx returns the raw element bitstream for the given (section,
// index) pair.
func (pr *PkgDecoder) DataIdx(k RelocKind, idx Index) string {
absIdx := pr.AbsIdx(k, idx)
var start uint32
if absIdx > 0 {
start = pr.elemEnds[absIdx-1]
}
end := pr.elemEnds[absIdx]
return pr.elemData[start:end]
}
// StringIdx returns the string value for the given string index.
func (pr *PkgDecoder) StringIdx(idx Index) string {
return pr.DataIdx(RelocString, idx)
}
// NewDecoder returns a Decoder for the given (section, index) pair,
// and decodes the given SyncMarker from the element bitstream.
func (pr *PkgDecoder) NewDecoder(k RelocKind, idx Index, marker SyncMarker) Decoder {
r := pr.NewDecoderRaw(k, idx)
r.Sync(marker)
return r
}
// TempDecoder returns a Decoder for the given (section, index) pair,
// and decodes the given SyncMarker from the element bitstream.
// If possible the Decoder should be RetireDecoder'd when it is no longer
// needed, this will avoid heap allocations.
func (pr *PkgDecoder) TempDecoder(k RelocKind, idx Index, marker SyncMarker) Decoder {
r := pr.TempDecoderRaw(k, idx)
r.Sync(marker)
return r
}
func (pr *PkgDecoder) RetireDecoder(d *Decoder) {
pr.scratchRelocEnt = d.Relocs
d.Relocs = nil
}
// NewDecoderRaw returns a Decoder for the given (section, index) pair.
//
// Most callers should use NewDecoder instead.
func (pr *PkgDecoder) NewDecoderRaw(k RelocKind, idx Index) Decoder {
r := Decoder{
common: pr,
k: k,
Idx: idx,
}
r.Data.Reset(pr.DataIdx(k, idx))
r.Sync(SyncRelocs)
r.Relocs = make([]RelocEnt, r.Len())
for i := range r.Relocs {
r.Sync(SyncReloc)
r.Relocs[i] = RelocEnt{RelocKind(r.Len()), Index(r.Len())}
}
return r
}
func (pr *PkgDecoder) TempDecoderRaw(k RelocKind, idx Index) Decoder {
r := Decoder{
common: pr,
k: k,
Idx: idx,
}
r.Data.Reset(pr.DataIdx(k, idx))
r.Sync(SyncRelocs)
l := r.Len()
if cap(pr.scratchRelocEnt) >= l {
r.Relocs = pr.scratchRelocEnt[:l]
pr.scratchRelocEnt = nil
} else {
r.Relocs = make([]RelocEnt, l)
}
for i := range r.Relocs {
r.Sync(SyncReloc)
r.Relocs[i] = RelocEnt{RelocKind(r.Len()), Index(r.Len())}
}
return r
}
// A Decoder provides methods for decoding an individual element's
// bitstream data.
type Decoder struct {
common *PkgDecoder
Relocs []RelocEnt
Data strings.Reader
k RelocKind
Idx Index
}
func (r *Decoder) checkErr(err error) {
if err != nil {
panicf("unexpected decoding error: %w", err)
}
}
func (r *Decoder) rawUvarint() uint64 {
x, err := readUvarint(&r.Data)
r.checkErr(err)
return x
}
// readUvarint is a type-specialized copy of encoding/binary.ReadUvarint.
// This avoids the interface conversion and thus has better escape properties,
// which flows up the stack.
func readUvarint(r *strings.Reader) (uint64, error) {
var x uint64
var s uint
for i := range binary.MaxVarintLen64 {
b, err := r.ReadByte()
if err != nil {
if i > 0 && err == io.EOF {
err = io.ErrUnexpectedEOF
}
return x, err
}
if b < 0x80 {
if i == binary.MaxVarintLen64-1 && b > 1 {
return x, overflow
}
return x | uint64(b)<<s, nil
}
x |= uint64(b&0x7f) << s
s += 7
}
return x, overflow
}
var overflow = errors.New("pkgbits: readUvarint overflows a 64-bit integer")
func (r *Decoder) rawVarint() int64 {
ux := r.rawUvarint()
// Zig-zag decode.
x := int64(ux >> 1)
if ux&1 != 0 {
x = ^x
}
return x
}
func (r *Decoder) rawReloc(k RelocKind, idx int) Index {
e := r.Relocs[idx]
assert(e.Kind == k)
return e.Idx
}
// Sync decodes a sync marker from the element bitstream and asserts
// that it matches the expected marker.
//
// If r.common.sync is false, then Sync is a no-op.
func (r *Decoder) Sync(mWant SyncMarker) {
if !r.common.sync {
return
}
pos, _ := r.Data.Seek(0, io.SeekCurrent)
mHave := SyncMarker(r.rawUvarint())
writerPCs := make([]int, r.rawUvarint())
for i := range writerPCs {
writerPCs[i] = int(r.rawUvarint())
}
if mHave == mWant {
return
}
// There's some tension here between printing:
//
// (1) full file paths that tools can recognize (e.g., so emacs
// hyperlinks the "file:line" text for easy navigation), or
//
// (2) short file paths that are easier for humans to read (e.g., by
// omitting redundant or irrelevant details, so it's easier to
// focus on the useful bits that remain).
//
// The current formatting favors the former, as it seems more
// helpful in practice. But perhaps the formatting could be improved
// to better address both concerns. For example, use relative file
// paths if they would be shorter, or rewrite file paths to contain
// "$GOROOT" (like objabi.AbsFile does) if tools can be taught how
// to reliably expand that again.
fmt.Printf("export data desync: package %q, section %v, index %v, offset %v\n", r.common.pkgPath, r.k, r.Idx, pos)
fmt.Printf("\nfound %v, written at:\n", mHave)
if len(writerPCs) == 0 {
fmt.Printf("\t[stack trace unavailable; recompile package %q with -d=syncframes]\n", r.common.pkgPath)
}
for _, pc := range writerPCs {
fmt.Printf("\t%s\n", r.common.StringIdx(r.rawReloc(RelocString, pc)))
}
fmt.Printf("\nexpected %v, reading at:\n", mWant)
var readerPCs [32]uintptr // TODO(mdempsky): Dynamically size?
n := runtime.Callers(2, readerPCs[:])
for _, pc := range fmtFrames(readerPCs[:n]...) {
fmt.Printf("\t%s\n", pc)
}
// We already printed a stack trace for the reader, so now we can
// simply exit. Printing a second one with panic or base.Fatalf
// would just be noise.
os.Exit(1)
}
// Bool decodes and returns a bool value from the element bitstream.
func (r *Decoder) Bool() bool {
r.Sync(SyncBool)
x, err := r.Data.ReadByte()
r.checkErr(err)
assert(x < 2)
return x != 0
}
// Int64 decodes and returns an int64 value from the element bitstream.
func (r *Decoder) Int64() int64 {
r.Sync(SyncInt64)
return r.rawVarint()
}
// Uint64 decodes and returns a uint64 value from the element bitstream.
func (r *Decoder) Uint64() uint64 {
r.Sync(SyncUint64)
return r.rawUvarint()
}
// Len decodes and returns a non-negative int value from the element bitstream.
func (r *Decoder) Len() int { x := r.Uint64(); v := int(x); assert(uint64(v) == x); return v }
// Int decodes and returns an int value from the element bitstream.
func (r *Decoder) Int() int { x := r.Int64(); v := int(x); assert(int64(v) == x); return v }
// Uint decodes and returns a uint value from the element bitstream.
func (r *Decoder) Uint() uint { x := r.Uint64(); v := uint(x); assert(uint64(v) == x); return v }
// Code decodes a Code value from the element bitstream and returns
// its ordinal value. It's the caller's responsibility to convert the
// result to an appropriate Code type.
//
// TODO(mdempsky): Ideally this method would have signature "Code[T
// Code] T" instead, but we don't allow generic methods and the
// compiler can't depend on generics yet anyway.
func (r *Decoder) Code(mark SyncMarker) int {
r.Sync(mark)
return r.Len()
}
// Reloc decodes a relocation of expected section k from the element
// bitstream and returns an index to the referenced element.
func (r *Decoder) Reloc(k RelocKind) Index {
r.Sync(SyncUseReloc)
return r.rawReloc(k, r.Len())
}
// String decodes and returns a string value from the element
// bitstream.
func (r *Decoder) String() string {
r.Sync(SyncString)
return r.common.StringIdx(r.Reloc(RelocString))
}
// Strings decodes and returns a variable-length slice of strings from
// the element bitstream.
func (r *Decoder) Strings() []string {
res := make([]string, r.Len())
for i := range res {
res[i] = r.String()
}
return res
}
// Value decodes and returns a constant.Value from the element
// bitstream.
func (r *Decoder) Value() constant.Value {
r.Sync(SyncValue)
isComplex := r.Bool()
val := r.scalar()
if isComplex {
val = constant.BinaryOp(val, token.ADD, constant.MakeImag(r.scalar()))
}
return val
}
func (r *Decoder) scalar() constant.Value {
switch tag := CodeVal(r.Code(SyncVal)); tag {
default:
panic(fmt.Errorf("unexpected scalar tag: %v", tag))
case ValBool:
return constant.MakeBool(r.Bool())
case ValString:
return constant.MakeString(r.String())
case ValInt64:
return constant.MakeInt64(r.Int64())
case ValBigInt:
return constant.Make(r.bigInt())
case ValBigRat:
num := r.bigInt()
denom := r.bigInt()
return constant.Make(new(big.Rat).SetFrac(num, denom))
case ValBigFloat:
return constant.Make(r.bigFloat())
}
}
func (r *Decoder) bigInt() *big.Int {
v := new(big.Int).SetBytes([]byte(r.String()))
if r.Bool() {
v.Neg(v)
}
return v
}
func (r *Decoder) bigFloat() *big.Float {
v := new(big.Float).SetPrec(512)
assert(v.UnmarshalText([]byte(r.String())) == nil)
return v
}
// @@@ Helpers
// TODO(mdempsky): These should probably be removed. I think they're a
// smell that the export data format is not yet quite right.
// PeekPkgPath returns the package path for the specified package
// index.
func (pr *PkgDecoder) PeekPkgPath(idx Index) string {
var path string
{
r := pr.TempDecoder(RelocPkg, idx, SyncPkgDef)
path = r.String()
pr.RetireDecoder(&r)
}
if path == "" {
path = pr.pkgPath
}
return path
}
// PeekObj returns the package path, object name, and CodeObj for the
// specified object index.
func (pr *PkgDecoder) PeekObj(idx Index) (string, string, CodeObj) {
var ridx Index
var name string
var rcode int
{
r := pr.TempDecoder(RelocName, idx, SyncObject1)
r.Sync(SyncSym)
r.Sync(SyncPkg)
ridx = r.Reloc(RelocPkg)
name = r.String()
rcode = r.Code(SyncCodeObj)
pr.RetireDecoder(&r)
}
path := pr.PeekPkgPath(ridx)
assert(name != "")
tag := CodeObj(rcode)
return path, name, tag
}
// Version reports the version of the bitstream.
func (w *Decoder) Version() Version { return w.common.version }
vendor/golang.org/x/tools/internal/pkgbits/doc.go
Generated Vendored
+32
View File
@@ -0,0 +1,32 @@
// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package pkgbits implements low-level coding abstractions for
// Unified IR's export data format.
//
// At a low-level, a package is a collection of bitstream elements.
// Each element has a "kind" and a dense, non-negative index.
// Elements can be randomly accessed given their kind and index.
//
// Individual elements are sequences of variable-length values (e.g.,
// integers, booleans, strings, go/constant values, cross-references
// to other elements). Package pkgbits provides APIs for encoding and
// decoding these low-level values, but the details of mapping
// higher-level Go constructs into elements is left to higher-level
// abstractions.
//
// Elements may cross-reference each other with "relocations." For
// example, an element representing a pointer type has a relocation
// referring to the element type.
//
// Go constructs may be composed as a constellation of multiple
// elements. For example, a declared function may have one element to
// describe the object (e.g., its name, type, position), and a
// separate element to describe its function body. This allows readers
// some flexibility in efficiently seeking or re-reading data (e.g.,
// inlining requires re-reading the function body for each inlined
// call, without needing to re-read the object-level details).
//
// This is a copy of internal/pkgbits in the Go implementation.
package pkgbits
vendor/golang.org/x/tools/internal/pkgbits/encoder.go
Generated Vendored
+392
View File
@@ -0,0 +1,392 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
import (
"bytes"
"crypto/md5"
"encoding/binary"
"go/constant"
"io"
"math/big"
"runtime"
"strings"
)
// A PkgEncoder provides methods for encoding a package's Unified IR
// export data.
type PkgEncoder struct {
// version of the bitstream.
version Version
// elems holds the bitstream for previously encoded elements.
elems [numRelocs][]string
// stringsIdx maps previously encoded strings to their index within
// the RelocString section, to allow deduplication. That is,
// elems[RelocString][stringsIdx[s]] == s (if present).
stringsIdx map[string]Index
// syncFrames is the number of frames to write at each sync
// marker. A negative value means sync markers are omitted.
syncFrames int
}
// SyncMarkers reports whether pw uses sync markers.
func (pw *PkgEncoder) SyncMarkers() bool { return pw.syncFrames >= 0 }
// NewPkgEncoder returns an initialized PkgEncoder.
//
// syncFrames is the number of caller frames that should be serialized
// at Sync points. Serializing additional frames results in larger
// export data files, but can help diagnosing desync errors in
// higher-level Unified IR reader/writer code. If syncFrames is
// negative, then sync markers are omitted entirely.
func NewPkgEncoder(version Version, syncFrames int) PkgEncoder {
return PkgEncoder{
version: version,
stringsIdx: make(map[string]Index),
syncFrames: syncFrames,
}
}
// DumpTo writes the package's encoded data to out0 and returns the
// package fingerprint.
func (pw *PkgEncoder) DumpTo(out0 io.Writer) (fingerprint [8]byte) {
h := md5.New()
out := io.MultiWriter(out0, h)
writeUint32 := func(x uint32) {
assert(binary.Write(out, binary.LittleEndian, x) == nil)
}
writeUint32(uint32(pw.version))
if pw.version.Has(Flags) {
var flags uint32
if pw.SyncMarkers() {
flags |= flagSyncMarkers
}
writeUint32(flags)
}
// Write elemEndsEnds.
var sum uint32
for _, elems := range &pw.elems {
sum += uint32(len(elems))
writeUint32(sum)
}
// Write elemEnds.
sum = 0
for _, elems := range &pw.elems {
for _, elem := range elems {
sum += uint32(len(elem))
writeUint32(sum)
}
}
// Write elemData.
for _, elems := range &pw.elems {
for _, elem := range elems {
_, err := io.WriteString(out, elem)
assert(err == nil)
}
}
// Write fingerprint.
copy(fingerprint[:], h.Sum(nil))
_, err := out0.Write(fingerprint[:])
assert(err == nil)
return
}
// StringIdx adds a string value to the strings section, if not
// already present, and returns its index.
func (pw *PkgEncoder) StringIdx(s string) Index {
if idx, ok := pw.stringsIdx[s]; ok {
assert(pw.elems[RelocString][idx] == s)
return idx
}
idx := Index(len(pw.elems[RelocString]))
pw.elems[RelocString] = append(pw.elems[RelocString], s)
pw.stringsIdx[s] = idx
return idx
}
// NewEncoder returns an Encoder for a new element within the given
// section, and encodes the given SyncMarker as the start of the
// element bitstream.
func (pw *PkgEncoder) NewEncoder(k RelocKind, marker SyncMarker) Encoder {
e := pw.NewEncoderRaw(k)
e.Sync(marker)
return e
}
// NewEncoderRaw returns an Encoder for a new element within the given
// section.
//
// Most callers should use NewEncoder instead.
func (pw *PkgEncoder) NewEncoderRaw(k RelocKind) Encoder {
idx := Index(len(pw.elems[k]))
pw.elems[k] = append(pw.elems[k], "") // placeholder
return Encoder{
p: pw,
k: k,
Idx: idx,
}
}
// An Encoder provides methods for encoding an individual element's
// bitstream data.
type Encoder struct {
p *PkgEncoder
Relocs []RelocEnt
RelocMap map[RelocEnt]uint32
Data bytes.Buffer // accumulated element bitstream data
encodingRelocHeader bool
k RelocKind
Idx Index // index within relocation section
}
// Flush finalizes the element's bitstream and returns its Index.
func (w *Encoder) Flush() Index {
var sb strings.Builder
// Backup the data so we write the relocations at the front.
var tmp bytes.Buffer
io.Copy(&tmp, &w.Data)
// TODO(mdempsky): Consider writing these out separately so they're
// easier to strip, along with function bodies, so that we can prune
// down to just the data that's relevant to go/types.
if w.encodingRelocHeader {
panic("encodingRelocHeader already true; recursive flush?")
}
w.encodingRelocHeader = true
w.Sync(SyncRelocs)
w.Len(len(w.Relocs))
for _, rEnt := range w.Relocs {
w.Sync(SyncReloc)
w.Len(int(rEnt.Kind))
w.Len(int(rEnt.Idx))
}
io.Copy(&sb, &w.Data)
io.Copy(&sb, &tmp)
w.p.elems[w.k][w.Idx] = sb.String()
return w.Idx
}
func (w *Encoder) checkErr(err error) {
if err != nil {
panicf("unexpected encoding error: %v", err)
}
}
func (w *Encoder) rawUvarint(x uint64) {
var buf [binary.MaxVarintLen64]byte
n := binary.PutUvarint(buf[:], x)
_, err := w.Data.Write(buf[:n])
w.checkErr(err)
}
func (w *Encoder) rawVarint(x int64) {
// Zig-zag encode.
ux := uint64(x) << 1
if x < 0 {
ux = ^ux
}
w.rawUvarint(ux)
}
func (w *Encoder) rawReloc(r RelocKind, idx Index) int {
e := RelocEnt{r, idx}
if w.RelocMap != nil {
if i, ok := w.RelocMap[e]; ok {
return int(i)
}
} else {
w.RelocMap = make(map[RelocEnt]uint32)
}
i := len(w.Relocs)
w.RelocMap[e] = uint32(i)
w.Relocs = append(w.Relocs, e)
return i
}
func (w *Encoder) Sync(m SyncMarker) {
if !w.p.SyncMarkers() {
return
}
// Writing out stack frame string references requires working
// relocations, but writing out the relocations themselves involves
// sync markers. To prevent infinite recursion, we simply trim the
// stack frame for sync markers within the relocation header.
var frames []string
if !w.encodingRelocHeader && w.p.syncFrames > 0 {
pcs := make([]uintptr, w.p.syncFrames)
n := runtime.Callers(2, pcs)
frames = fmtFrames(pcs[:n]...)
}
// TODO(mdempsky): Save space by writing out stack frames as a
// linked list so we can share common stack frames.
w.rawUvarint(uint64(m))
w.rawUvarint(uint64(len(frames)))
for _, frame := range frames {
w.rawUvarint(uint64(w.rawReloc(RelocString, w.p.StringIdx(frame))))
}
}
// Bool encodes and writes a bool value into the element bitstream,
// and then returns the bool value.
//
// For simple, 2-alternative encodings, the idiomatic way to call Bool
// is something like:
//
// if w.Bool(x != 0) {
// // alternative #1
// } else {
// // alternative #2
// }
//
// For multi-alternative encodings, use Code instead.
func (w *Encoder) Bool(b bool) bool {
w.Sync(SyncBool)
var x byte
if b {
x = 1
}
err := w.Data.WriteByte(x)
w.checkErr(err)
return b
}
// Int64 encodes and writes an int64 value into the element bitstream.
func (w *Encoder) Int64(x int64) {
w.Sync(SyncInt64)
w.rawVarint(x)
}
// Uint64 encodes and writes a uint64 value into the element bitstream.
func (w *Encoder) Uint64(x uint64) {
w.Sync(SyncUint64)
w.rawUvarint(x)
}
// Len encodes and writes a non-negative int value into the element bitstream.
func (w *Encoder) Len(x int) { assert(x >= 0); w.Uint64(uint64(x)) }
// Int encodes and writes an int value into the element bitstream.
func (w *Encoder) Int(x int) { w.Int64(int64(x)) }
// Uint encodes and writes a uint value into the element bitstream.
func (w *Encoder) Uint(x uint) { w.Uint64(uint64(x)) }
// Reloc encodes and writes a relocation for the given (section,
// index) pair into the element bitstream.
//
// Note: Only the index is formally written into the element
// bitstream, so bitstream decoders must know from context which
// section an encoded relocation refers to.
func (w *Encoder) Reloc(r RelocKind, idx Index) {
w.Sync(SyncUseReloc)
w.Len(w.rawReloc(r, idx))
}
// Code encodes and writes a Code value into the element bitstream.
func (w *Encoder) Code(c Code) {
w.Sync(c.Marker())
w.Len(c.Value())
}
// String encodes and writes a string value into the element
// bitstream.
//
// Internally, strings are deduplicated by adding them to the strings
// section (if not already present), and then writing a relocation
// into the element bitstream.
func (w *Encoder) String(s string) {
w.StringRef(w.p.StringIdx(s))
}
// StringRef writes a reference to the given index, which must be a
// previously encoded string value.
func (w *Encoder) StringRef(idx Index) {
w.Sync(SyncString)
w.Reloc(RelocString, idx)
}
// Strings encodes and writes a variable-length slice of strings into
// the element bitstream.
func (w *Encoder) Strings(ss []string) {
w.Len(len(ss))
for _, s := range ss {
w.String(s)
}
}
// Value encodes and writes a constant.Value into the element
// bitstream.
func (w *Encoder) Value(val constant.Value) {
w.Sync(SyncValue)
if w.Bool(val.Kind() == constant.Complex) {
w.scalar(constant.Real(val))
w.scalar(constant.Imag(val))
} else {
w.scalar(val)
}
}
func (w *Encoder) scalar(val constant.Value) {
switch v := constant.Val(val).(type) {
default:
panicf("unhandled %v (%v)", val, val.Kind())
case bool:
w.Code(ValBool)
w.Bool(v)
case string:
w.Code(ValString)
w.String(v)
case int64:
w.Code(ValInt64)
w.Int64(v)
case *big.Int:
w.Code(ValBigInt)
w.bigInt(v)
case *big.Rat:
w.Code(ValBigRat)
w.bigInt(v.Num())
w.bigInt(v.Denom())
case *big.Float:
w.Code(ValBigFloat)
w.bigFloat(v)
}
}
func (w *Encoder) bigInt(v *big.Int) {
b := v.Bytes()
w.String(string(b)) // TODO: More efficient encoding.
w.Bool(v.Sign() < 0)
}
func (w *Encoder) bigFloat(v *big.Float) {
b := v.Append(nil, 'p', -1)
w.String(string(b)) // TODO: More efficient encoding.
}
// Version reports the version of the bitstream.
func (w *Encoder) Version() Version { return w.p.version }
vendor/golang.org/x/tools/internal/pkgbits/flags.go
Generated Vendored
+9
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@@ -0,0 +1,9 @@
// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
const (
flagSyncMarkers = 1 << iota // file format contains sync markers
)
vendor/golang.org/x/tools/internal/pkgbits/reloc.go
Generated Vendored
+42
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@@ -0,0 +1,42 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
// A RelocKind indicates a particular section within a unified IR export.
type RelocKind int32
// An Index represents a bitstream element index within a particular
// section.
type Index int32
// A relocEnt (relocation entry) is an entry in an element's local
// reference table.
//
// TODO(mdempsky): Rename this too.
type RelocEnt struct {
Kind RelocKind
Idx Index
}
// Reserved indices within the meta relocation section.
const (
PublicRootIdx Index = 0
PrivateRootIdx Index = 1
)
const (
RelocString RelocKind = iota
RelocMeta
RelocPosBase
RelocPkg
RelocName
RelocType
RelocObj
RelocObjExt
RelocObjDict
RelocBody
numRelocs = iota
)
vendor/golang.org/x/tools/internal/pkgbits/support.go
Generated Vendored
+17
View File
@@ -0,0 +1,17 @@
// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
import "fmt"
func assert(b bool) {
if !b {
panic("assertion failed")
}
}
func panicf(format string, args ...any) {
panic(fmt.Errorf(format, args...))
}
vendor/golang.org/x/tools/internal/pkgbits/sync.go
Generated Vendored
+136
View File
@@ -0,0 +1,136 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
import (
"fmt"
"runtime"
"strings"
)
// fmtFrames formats a backtrace for reporting reader/writer desyncs.
func fmtFrames(pcs ...uintptr) []string {
res := make([]string, 0, len(pcs))
walkFrames(pcs, func(file string, line int, name string, offset uintptr) {
// Trim package from function name. It's just redundant noise.
name = strings.TrimPrefix(name, "cmd/compile/internal/noder.")
res = append(res, fmt.Sprintf("%s:%v: %s +0x%v", file, line, name, offset))
})
return res
}
type frameVisitor func(file string, line int, name string, offset uintptr)
// walkFrames calls visit for each call frame represented by pcs.
//
// pcs should be a slice of PCs, as returned by runtime.Callers.
func walkFrames(pcs []uintptr, visit frameVisitor) {
if len(pcs) == 0 {
return
}
frames := runtime.CallersFrames(pcs)
for {
frame, more := frames.Next()
visit(frame.File, frame.Line, frame.Function, frame.PC-frame.Entry)
if !more {
return
}
}
}
// SyncMarker is an enum type that represents markers that may be
// written to export data to ensure the reader and writer stay
// synchronized.
type SyncMarker int
//go:generate stringer -type=SyncMarker -trimprefix=Sync
const (
_ SyncMarker = iota
// Public markers (known to go/types importers).
// Low-level coding markers.
SyncEOF
SyncBool
SyncInt64
SyncUint64
SyncString
SyncValue
SyncVal
SyncRelocs
SyncReloc
SyncUseReloc
// Higher-level object and type markers.
SyncPublic
SyncPos
SyncPosBase
SyncObject
SyncObject1
SyncPkg
SyncPkgDef
SyncMethod
SyncType
SyncTypeIdx
SyncTypeParamNames
SyncSignature
SyncParams
SyncParam
SyncCodeObj
SyncSym
SyncLocalIdent
SyncSelector
// Private markers (only known to cmd/compile).
SyncPrivate
SyncFuncExt
SyncVarExt
SyncTypeExt
SyncPragma
SyncExprList
SyncExprs
SyncExpr
SyncExprType
SyncAssign
SyncOp
SyncFuncLit
SyncCompLit
SyncDecl
SyncFuncBody
SyncOpenScope
SyncCloseScope
SyncCloseAnotherScope
SyncDeclNames
SyncDeclName
SyncStmts
SyncBlockStmt
SyncIfStmt
SyncForStmt
SyncSwitchStmt
SyncRangeStmt
SyncCaseClause
SyncCommClause
SyncSelectStmt
SyncDecls
SyncLabeledStmt
SyncUseObjLocal
SyncAddLocal
SyncLinkname
SyncStmt1
SyncStmtsEnd
SyncLabel
SyncOptLabel
SyncMultiExpr
SyncRType
SyncConvRTTI
)
vendor/golang.org/x/tools/internal/pkgbits/syncmarker_string.go
Generated Vendored
+92
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@@ -0,0 +1,92 @@
// Code generated by "stringer -type=SyncMarker -trimprefix=Sync"; DO NOT EDIT.
package pkgbits
import "strconv"
func _() {
// An "invalid array index" compiler error signifies that the constant values have changed.
// Re-run the stringer command to generate them again.
var x [1]struct{}
_ = x[SyncEOF-1]
_ = x[SyncBool-2]
_ = x[SyncInt64-3]
_ = x[SyncUint64-4]
_ = x[SyncString-5]
_ = x[SyncValue-6]
_ = x[SyncVal-7]
_ = x[SyncRelocs-8]
_ = x[SyncReloc-9]
_ = x[SyncUseReloc-10]
_ = x[SyncPublic-11]
_ = x[SyncPos-12]
_ = x[SyncPosBase-13]
_ = x[SyncObject-14]
_ = x[SyncObject1-15]
_ = x[SyncPkg-16]
_ = x[SyncPkgDef-17]
_ = x[SyncMethod-18]
_ = x[SyncType-19]
_ = x[SyncTypeIdx-20]
_ = x[SyncTypeParamNames-21]
_ = x[SyncSignature-22]
_ = x[SyncParams-23]
_ = x[SyncParam-24]
_ = x[SyncCodeObj-25]
_ = x[SyncSym-26]
_ = x[SyncLocalIdent-27]
_ = x[SyncSelector-28]
_ = x[SyncPrivate-29]
_ = x[SyncFuncExt-30]
_ = x[SyncVarExt-31]
_ = x[SyncTypeExt-32]
_ = x[SyncPragma-33]
_ = x[SyncExprList-34]
_ = x[SyncExprs-35]
_ = x[SyncExpr-36]
_ = x[SyncExprType-37]
_ = x[SyncAssign-38]
_ = x[SyncOp-39]
_ = x[SyncFuncLit-40]
_ = x[SyncCompLit-41]
_ = x[SyncDecl-42]
_ = x[SyncFuncBody-43]
_ = x[SyncOpenScope-44]
_ = x[SyncCloseScope-45]
_ = x[SyncCloseAnotherScope-46]
_ = x[SyncDeclNames-47]
_ = x[SyncDeclName-48]
_ = x[SyncStmts-49]
_ = x[SyncBlockStmt-50]
_ = x[SyncIfStmt-51]
_ = x[SyncForStmt-52]
_ = x[SyncSwitchStmt-53]
_ = x[SyncRangeStmt-54]
_ = x[SyncCaseClause-55]
_ = x[SyncCommClause-56]
_ = x[SyncSelectStmt-57]
_ = x[SyncDecls-58]
_ = x[SyncLabeledStmt-59]
_ = x[SyncUseObjLocal-60]
_ = x[SyncAddLocal-61]
_ = x[SyncLinkname-62]
_ = x[SyncStmt1-63]
_ = x[SyncStmtsEnd-64]
_ = x[SyncLabel-65]
_ = x[SyncOptLabel-66]
_ = x[SyncMultiExpr-67]
_ = x[SyncRType-68]
_ = x[SyncConvRTTI-69]
}
const _SyncMarker_name = "EOFBoolInt64Uint64StringValueValRelocsRelocUseRelocPublicPosPosBaseObjectObject1PkgPkgDefMethodTypeTypeIdxTypeParamNamesSignatureParamsParamCodeObjSymLocalIdentSelectorPrivateFuncExtVarExtTypeExtPragmaExprListExprsExprExprTypeAssignOpFuncLitCompLitDeclFuncBodyOpenScopeCloseScopeCloseAnotherScopeDeclNamesDeclNameStmtsBlockStmtIfStmtForStmtSwitchStmtRangeStmtCaseClauseCommClauseSelectStmtDeclsLabeledStmtUseObjLocalAddLocalLinknameStmt1StmtsEndLabelOptLabelMultiExprRTypeConvRTTI"
var _SyncMarker_index = [...]uint16{0, 3, 7, 12, 18, 24, 29, 32, 38, 43, 51, 57, 60, 67, 73, 80, 83, 89, 95, 99, 106, 120, 129, 135, 140, 147, 150, 160, 168, 175, 182, 188, 195, 201, 209, 214, 218, 226, 232, 234, 241, 248, 252, 260, 269, 279, 296, 305, 313, 318, 327, 333, 340, 350, 359, 369, 379, 389, 394, 405, 416, 424, 432, 437, 445, 450, 458, 467, 472, 480}
func (i SyncMarker) String() string {
i -= 1
if i < 0 || i >= SyncMarker(len(_SyncMarker_index)-1) {
return "SyncMarker(" + strconv.FormatInt(int64(i+1), 10) + ")"
}
return _SyncMarker_name[_SyncMarker_index[i]:_SyncMarker_index[i+1]]
}
vendor/golang.org/x/tools/internal/pkgbits/version.go
Generated Vendored
+85
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@@ -0,0 +1,85 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pkgbits
// Version indicates a version of a unified IR bitstream.
// Each Version indicates the addition, removal, or change of
// new data in the bitstream.
//
// These are serialized to disk and the interpretation remains fixed.
type Version uint32
const (
// V0: initial prototype.
//
// All data that is not assigned a Field is in version V0
// and has not been deprecated.
V0 Version = iota
// V1: adds the Flags uint32 word
V1
// V2: removes unused legacy fields and supports type parameters for aliases.
// - remove the legacy "has init" bool from the public root
// - remove obj's "derived func instance" bool
// - add a TypeParamNames field to ObjAlias
// - remove derived info "needed" bool
V2
numVersions = iota
)
// Field denotes a unit of data in the serialized unified IR bitstream.
// It is conceptually a like field in a structure.
//
// We only really need Fields when the data may or may not be present
// in a stream based on the Version of the bitstream.
//
// Unlike much of pkgbits, Fields are not serialized and
// can change values as needed.
type Field int
const (
// Flags in a uint32 in the header of a bitstream
// that is used to indicate whether optional features are enabled.
Flags Field = iota
// Deprecated: HasInit was a bool indicating whether a package
// has any init functions.
HasInit
// Deprecated: DerivedFuncInstance was a bool indicating
// whether an object was a function instance.
DerivedFuncInstance
// ObjAlias has a list of TypeParamNames.
AliasTypeParamNames
// Deprecated: DerivedInfoNeeded was a bool indicating
// whether a type was a derived type.
DerivedInfoNeeded
numFields = iota
)
// introduced is the version a field was added.
var introduced = [numFields]Version{
Flags: V1,
AliasTypeParamNames: V2,
}
// removed is the version a field was removed in or 0 for fields
// that have not yet been deprecated.
// (So removed[f]-1 is the last version it is included in.)
var removed = [numFields]Version{
HasInit: V2,
DerivedFuncInstance: V2,
DerivedInfoNeeded: V2,
}
// Has reports whether field f is present in a bitstream at version v.
func (v Version) Has(f Field) bool {
return introduced[f] <= v && (v < removed[f] || removed[f] == V0)
}
vendor/golang.org/x/tools/internal/stdlib/deps.go
Generated Vendored
+359
View File
@@ -0,0 +1,359 @@
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Code generated by generate.go. DO NOT EDIT.
package stdlib
type pkginfo struct {
name string
deps string // list of indices of dependencies, as varint-encoded deltas
}
var deps = [...]pkginfo{
{"archive/tar", "\x03j\x03E5\x01\v\x01#\x01\x01\x02\x05\n\x02\x01\x02\x02\v"},
{"archive/zip", "\x02\x04`\a\x16\x0205\x01+\x05\x01\x11\x03\x02\r\x04"},
{"bufio", "\x03j}F\x13"},
{"bytes", "m+R\x03\fH\x02\x02"},
{"cmp", ""},
{"compress/bzip2", "\x02\x02\xe6\x01C"},
{"compress/flate", "\x02k\x03z\r\x025\x01\x03"},
{"compress/gzip", "\x02\x04`\a\x03\x15eU"},
{"compress/lzw", "\x02k\x03z"},
{"compress/zlib", "\x02\x04`\a\x03\x13\x01f"},
{"container/heap", "\xae\x02"},
{"container/list", ""},
{"container/ring", ""},
{"context", "m\\i\x01\f"},
{"crypto", "\x83\x01gE"},
{"crypto/aes", "\x10\n\a\x8e\x02"},
{"crypto/cipher", "\x03\x1e\x01\x01\x1d\x11\x1c,Q"},
{"crypto/des", "\x10\x13\x1d-,\x96\x01\x03"},
{"crypto/dsa", "@\x04)}\x0e"},
{"crypto/ecdh", "\x03\v\f\x0e\x04\x14\x04\r\x1c}"},
{"crypto/ecdsa", "\x0e\x05\x03\x04\x01\x0e\x16\x01\x04\f\x01\x1c}\x0e\x04L\x01"},
{"crypto/ed25519", "\x0e\x1c\x16\n\a\x1c}E"},
{"crypto/elliptic", "0=}\x0e:"},
{"crypto/fips140", " \x05\x90\x01"},
{"crypto/hkdf", "-\x12\x01-\x16"},
{"crypto/hmac", "\x1a\x14\x11\x01\x112"},
{"crypto/internal/boring", "\x0e\x02\rf"},
{"crypto/internal/boring/bbig", "\x1a\xde\x01M"},
{"crypto/internal/boring/bcache", "\xb3\x02\x12"},
{"crypto/internal/boring/sig", ""},
{"crypto/internal/cryptotest", "\x03\r\n)\x0e\x19\x06\x13\x12#\a\t\x11\x11\x11\x1b\x01\f\r\x05\n"},
{"crypto/internal/entropy", "E"},
{"crypto/internal/fips140", ">/}9\r\x15"},
{"crypto/internal/fips140/aes", "\x03\x1d\x03\x02\x13\x04\x01\x01\x05*\x8c\x016"},
{"crypto/internal/fips140/aes/gcm", " \x01\x02\x02\x02\x11\x04\x01\x06*\x8a\x01"},
{"crypto/internal/fips140/alias", "\xc5\x02"},
{"crypto/internal/fips140/bigmod", "%\x17\x01\x06*\x8c\x01"},
{"crypto/internal/fips140/check", " \x0e\x06\b\x02\xac\x01["},
{"crypto/internal/fips140/check/checktest", "%\xfe\x01\""},
{"crypto/internal/fips140/drbg", "\x03\x1c\x01\x01\x04\x13\x04\b\x01(}\x0f9"},
{"crypto/internal/fips140/ecdh", "\x03\x1d\x05\x02\t\f1}\x0f9"},
{"crypto/internal/fips140/ecdsa", "\x03\x1d\x04\x01\x02\a\x02\x067}H"},
{"crypto/internal/fips140/ed25519", "\x03\x1d\x05\x02\x04\v7\xc2\x01\x03"},
{"crypto/internal/fips140/edwards25519", "%\a\f\x041\x8c\x019"},
{"crypto/internal/fips140/edwards25519/field", "%\x13\x041\x8c\x01"},
{"crypto/internal/fips140/hkdf", "\x03\x1d\x05\t\x069"},
{"crypto/internal/fips140/hmac", "\x03\x1d\x14\x01\x017"},
{"crypto/internal/fips140/mlkem", "\x03\x1d\x05\x02\x0e\x03\x041"},
{"crypto/internal/fips140/nistec", "%\f\a\x041\x8c\x01*\x0f\x13"},
{"crypto/internal/fips140/nistec/fiat", "%\x135\x8c\x01"},
{"crypto/internal/fips140/pbkdf2", "\x03\x1d\x05\t\x069"},
{"crypto/internal/fips140/rsa", "\x03\x1d\x04\x01\x02\r\x01\x01\x025}H"},
{"crypto/internal/fips140/sha256", "\x03\x1d\x1c\x01\x06*\x8c\x01"},
{"crypto/internal/fips140/sha3", "\x03\x1d\x18\x04\x010\x8c\x01L"},
{"crypto/internal/fips140/sha512", "\x03\x1d\x1c\x01\x06*\x8c\x01"},
{"crypto/internal/fips140/ssh", " \x05"},
{"crypto/internal/fips140/subtle", "#"},
{"crypto/internal/fips140/tls12", "\x03\x1d\x05\t\x06\x027"},
{"crypto/internal/fips140/tls13", "\x03\x1d\x05\b\a\b1"},
{"crypto/internal/fips140deps", ""},
{"crypto/internal/fips140deps/byteorder", "\x99\x01"},
{"crypto/internal/fips140deps/cpu", "\xad\x01\a"},
{"crypto/internal/fips140deps/godebug", "\xb5\x01"},
{"crypto/internal/fips140hash", "5\x1a4\xc2\x01"},
{"crypto/internal/fips140only", "'\r\x01\x01M25"},
{"crypto/internal/fips140test", ""},
{"crypto/internal/hpke", "\x0e\x01\x01\x03\x1a\x1d#,`N"},
{"crypto/internal/impl", "\xb0\x02"},
{"crypto/internal/randutil", "\xea\x01\x12"},
{"crypto/internal/sysrand", "mi!\x1f\r\x0f\x01\x01\v\x06"},
{"crypto/internal/sysrand/internal/seccomp", "m"},
{"crypto/md5", "\x0e2-\x16\x16`"},
{"crypto/mlkem", "/"},
{"crypto/pbkdf2", "2\r\x01-\x16"},
{"crypto/rand", "\x1a\x06\a\x19\x04\x01(}\x0eM"},
{"crypto/rc4", "#\x1d-\xc2\x01"},
{"crypto/rsa", "\x0e\f\x01\t\x0f\f\x01\x04\x06\a\x1c\x03\x1325\r\x01"},
{"crypto/sha1", "\x0e\f&-\x16\x16\x14L"},
{"crypto/sha256", "\x0e\f\x1aO"},
{"crypto/sha3", "\x0e'N\xc2\x01"},
{"crypto/sha512", "\x0e\f\x1cM"},
{"crypto/subtle", "8\x96\x01U"},
{"crypto/tls", "\x03\b\x02\x01\x01\x01\x01\x02\x01\x01\x01\x03\x01\a\x01\v\x02\n\x01\b\x05\x03\x01\x01\x01\x01\x02\x01\x02\x01\x17\x02\x03\x13\x16\x14\b5\x16\x16\r\n\x01\x01\x01\x02\x01\f\x06\x02\x01"},
{"crypto/tls/internal/fips140tls", " \x93\x02"},
{"crypto/x509", "\x03\v\x01\x01\x01\x01\x01\x01\x01\x011\x03\x02\x01\x01\x02\x05\x0e\x06\x02\x02\x03E\x032\x01\x02\t\x01\x01\x01\a\x10\x05\x01\x06\x02\x05\f\x01\x02\r\x02\x01\x01\x02\x03\x01"},
{"crypto/x509/pkix", "c\x06\a\x88\x01G"},
{"database/sql", "\x03\nJ\x16\x03z\f\x06\"\x05\n\x02\x03\x01\f\x02\x02\x02"},
{"database/sql/driver", "\r`\x03\xae\x01\x11\x10"},
{"debug/buildinfo", "\x03W\x02\x01\x01\b\a\x03`\x18\x02\x01+\x0f "},
{"debug/dwarf", "\x03c\a\x03z1\x13\x01\x01"},
{"debug/elf", "\x03\x06P\r\a\x03`\x19\x01,\x19\x01\x15"},
{"debug/gosym", "\x03c\n\xbe\x01\x01\x01\x02"},
{"debug/macho", "\x03\x06P\r\n`\x1a,\x19\x01"},
{"debug/pe", "\x03\x06P\r\a\x03`\x1a,\x19\x01\x15"},
{"debug/plan9obj", "f\a\x03`\x1a,"},
{"embed", "m+:\x18\x01T"},
{"embed/internal/embedtest", ""},
{"encoding", ""},
{"encoding/ascii85", "\xea\x01E"},
{"encoding/asn1", "\x03j\x03\x87\x01\x01&\x0f\x02\x01\x0f\x03\x01"},
{"encoding/base32", "\xea\x01C\x02"},
{"encoding/base64", "\x99\x01QC\x02"},
{"encoding/binary", "m}\r'\x0f\x05"},
{"encoding/csv", "\x02\x01j\x03zF\x11\x02"},
{"encoding/gob", "\x02_\x05\a\x03`\x1a\f\x01\x02\x1d\b\x14\x01\x0e\x02"},
{"encoding/hex", "m\x03zC\x03"},
{"encoding/json", "\x03\x01]\x04\b\x03z\r'\x0f\x02\x01\x02\x0f\x01\x01\x02"},
{"encoding/pem", "\x03b\b}C\x03"},
{"encoding/xml", "\x02\x01^\f\x03z4\x05\f\x01\x02\x0f\x02"},
{"errors", "\xc9\x01|"},
{"expvar", "jK9\t\n\x15\r\n\x02\x03\x01\x10"},
{"flag", "a\f\x03z,\b\x05\n\x02\x01\x0f"},
{"fmt", "mE8\r\x1f\b\x0f\x02\x03\x11"},
{"go/ast", "\x03\x01l\x0f\x01j\x03)\b\x0f\x02\x01"},
{"go/ast/internal/tests", ""},
{"go/build", "\x02\x01j\x03\x01\x03\x02\a\x02\x01\x17\x1e\x04\x02\t\x14\x12\x01+\x01\x04\x01\a\n\x02\x01\x11\x02\x02"},
{"go/build/constraint", "m\xc2\x01\x01\x11\x02"},
{"go/constant", "p\x10w\x01\x016\x01\x02\x11"},
{"go/doc", "\x04l\x01\x06\t=-1\x12\x02\x01\x11\x02"},
{"go/doc/comment", "\x03m\xbd\x01\x01\x01\x01\x11\x02"},
{"go/format", "\x03m\x01\f\x01\x02jF"},
{"go/importer", "s\a\x01\x01\x04\x01i9"},
{"go/internal/gccgoimporter", "\x02\x01W\x13\x03\x05\v\x01g\x02,\x01\x05\x13\x01\v\b"},
{"go/internal/gcimporter", "\x02n\x10\x01/\x05\x0e',\x17\x03\x02"},
{"go/internal/srcimporter", "p\x01\x02\n\x03\x01i,\x01\x05\x14\x02\x13"},
{"go/parser", "\x03j\x03\x01\x03\v\x01j\x01+\x06\x14"},
{"go/printer", "p\x01\x03\x03\tj\r\x1f\x17\x02\x01\x02\n\x05\x02"},
{"go/scanner", "\x03m\x10j2\x12\x01\x12\x02"},
{"go/token", "\x04l\xbd\x01\x02\x03\x01\x0e\x02"},
{"go/types", "\x03\x01\x06c\x03\x01\x04\b\x03\x02\x15\x1e\x06+\x04\x03\n%\a\n\x01\x01\x01\x02\x01\x0e\x02\x02"},
{"go/version", "\xba\x01v"},
{"hash", "\xea\x01"},
{"hash/adler32", "m\x16\x16"},
{"hash/crc32", "m\x16\x16\x14\x85\x01\x01\x12"},
{"hash/crc64", "m\x16\x16\x99\x01"},
{"hash/fnv", "m\x16\x16`"},
{"hash/maphash", "\x94\x01\x05\x1b\x03@N"},
{"html", "\xb0\x02\x02\x11"},
{"html/template", "\x03g\x06\x19,5\x01\v \x05\x01\x02\x03\x0e\x01\x02\v\x01\x03\x02"},
{"image", "\x02k\x1f^\x0f6\x03\x01"},
{"image/color", ""},
{"image/color/palette", "\x8c\x01"},
{"image/draw", "\x8b\x01\x01\x04"},
{"image/gif", "\x02\x01\x05e\x03\x1b\x01\x01\x01\vQ"},
{"image/internal/imageutil", "\x8b\x01"},
{"image/jpeg", "\x02k\x1e\x01\x04Z"},
{"image/png", "\x02\a]\n\x13\x02\x06\x01^E"},
{"index/suffixarray", "\x03c\a}\r*\f\x01"},
{"internal/abi", "\xb4\x01\x91\x01"},
{"internal/asan", "\xc5\x02"},
{"internal/bisect", "\xa3\x02\x0f\x01"},
{"internal/buildcfg", "pG_\x06\x02\x05\f\x01"},
{"internal/bytealg", "\xad\x01\x98\x01"},
{"internal/byteorder", ""},
{"internal/cfg", ""},
{"internal/chacha8rand", "\x99\x01\x1b\x91\x01"},
{"internal/copyright", ""},
{"internal/coverage", ""},
{"internal/coverage/calloc", ""},
{"internal/coverage/cfile", "j\x06\x17\x16\x01\x02\x01\x01\x01\x01\x01\x01\x01#\x01\x1f,\x06\a\f\x01\x03\f\x06"},
{"internal/coverage/cformat", "\x04l-\x04I\f7\x01\x02\f"},
{"internal/coverage/cmerge", "p-Z"},
{"internal/coverage/decodecounter", "f\n-\v\x02@,\x19\x16"},
{"internal/coverage/decodemeta", "\x02d\n\x17\x16\v\x02@,"},
{"internal/coverage/encodecounter", "\x02d\n-\f\x01\x02>\f \x17"},
{"internal/coverage/encodemeta", "\x02\x01c\n\x13\x04\x16\r\x02>,/"},
{"internal/coverage/pods", "\x04l-y\x06\x05\f\x02\x01"},
{"internal/coverage/rtcov", "\xc5\x02"},
{"internal/coverage/slicereader", "f\nz["},
{"internal/coverage/slicewriter", "pz"},
{"internal/coverage/stringtab", "p8\x04>"},
{"internal/coverage/test", ""},
{"internal/coverage/uleb128", ""},
{"internal/cpu", "\xc5\x02"},
{"internal/dag", "\x04l\xbd\x01\x03"},
{"internal/diff", "\x03m\xbe\x01\x02"},
{"internal/exportdata", "\x02\x01j\x03\x03]\x1a,\x01\x05\x13\x01\x02"},
{"internal/filepathlite", "m+:\x19B"},
{"internal/fmtsort", "\x04\x9a\x02\x0f"},
{"internal/fuzz", "\x03\nA\x18\x04\x03\x03\x01\f\x0355\r\x02\x1d\x01\x05\x02\x05\f\x01\x02\x01\x01\v\x04\x02"},
{"internal/goarch", ""},
{"internal/godebug", "\x96\x01 |\x01\x12"},
{"internal/godebugs", ""},
{"internal/goexperiment", ""},
{"internal/goos", ""},
{"internal/goroot", "\x96\x02\x01\x05\x14\x02"},
{"internal/gover", "\x04"},
{"internal/goversion", ""},
{"internal/itoa", ""},
{"internal/lazyregexp", "\x96\x02\v\x0f\x02"},
{"internal/lazytemplate", "\xea\x01,\x1a\x02\v"},
{"internal/msan", "\xc5\x02"},
{"internal/nettrace", ""},
{"internal/obscuretestdata", "e\x85\x01,"},
{"internal/oserror", "m"},
{"internal/pkgbits", "\x03K\x18\a\x03\x05\vj\x0e\x1e\r\f\x01"},
{"internal/platform", ""},
{"internal/poll", "mO\x1a\x149\x0f\x01\x01\v\x06"},
{"internal/profile", "\x03\x04f\x03z7\r\x01\x01\x0f"},
{"internal/profilerecord", ""},
{"internal/race", "\x94\x01\xb1\x01"},
{"internal/reflectlite", "\x94\x01 3<\""},
{"internal/runtime/atomic", "\xc5\x02"},
{"internal/runtime/exithook", "\xca\x01{"},
{"internal/runtime/maps", "\x94\x01\x01\x1f\v\t\x05\x01w"},
{"internal/runtime/math", "\xb4\x01"},
{"internal/runtime/sys", "\xb4\x01\x04"},
{"internal/runtime/syscall", "\xc5\x02"},
{"internal/saferio", "\xea\x01["},
{"internal/singleflight", "\xb2\x02"},
{"internal/stringslite", "\x98\x01\xad\x01"},
{"internal/sync", "\x94\x01 \x14k\x12"},
{"internal/synctest", "\xc5\x02"},
{"internal/syscall/execenv", "\xb4\x02"},
{"internal/syscall/unix", "\xa3\x02\x10\x01\x11"},
{"internal/sysinfo", "\x02\x01\xaa\x01=,\x1a\x02"},
{"internal/syslist", ""},
{"internal/testenv", "\x03\n`\x02\x01*\x1a\x10'+\x01\x05\a\f\x01\x02\x02\x01\n"},
{"internal/testlog", "\xb2\x02\x01\x12"},
{"internal/testpty", "m\x03\xa6\x01"},
{"internal/trace", "\x02\x01\x01\x06\\\a\x03n\x03\x03\x06\x03\n6\x01\x02\x0f\x06"},
{"internal/trace/internal/testgen", "\x03c\nl\x03\x02\x03\x011\v\x0f"},
{"internal/trace/internal/tracev1", "\x03\x01b\a\x03t\x06\r6\x01"},
{"internal/trace/raw", "\x02d\nq\x03\x06E\x01\x11"},
{"internal/trace/testtrace", "\x02\x01j\x03l\x03\x06\x057\f\x02\x01"},
{"internal/trace/tracev2", ""},
{"internal/trace/traceviewer", "\x02]\v\x06\x1a<\x16\a\a\x04\t\n\x15\x01\x05\a\f\x01\x02\r"},
{"internal/trace/traceviewer/format", ""},
{"internal/trace/version", "pq\t"},
{"internal/txtar", "\x03m\xa6\x01\x1a"},
{"internal/types/errors", "\xaf\x02"},
{"internal/unsafeheader", "\xc5\x02"},
{"internal/xcoff", "Y\r\a\x03`\x1a,\x19\x01"},
{"internal/zstd", "f\a\x03z\x0f"},
{"io", "m\xc5\x01"},
{"io/fs", "m+*(1\x12\x12\x04"},
{"io/ioutil", "\xea\x01\x01+\x17\x03"},
{"iter", "\xc8\x01[\""},
{"log", "pz\x05'\r\x0f\x01\f"},
{"log/internal", ""},
{"log/slog", "\x03\nT\t\x03\x03z\x04\x01\x02\x02\x04'\x05\n\x02\x01\x02\x01\f\x02\x02\x02"},
{"log/slog/internal", ""},
{"log/slog/internal/benchmarks", "\r`\x03z\x06\x03<\x10"},
{"log/slog/internal/buffer", "\xb2\x02"},
{"log/slog/internal/slogtest", "\xf0\x01"},
{"log/syslog", "m\x03~\x12\x16\x1a\x02\r"},
{"maps", "\xed\x01X"},
{"math", "\xad\x01LL"},
{"math/big", "\x03j\x03)\x14=\r\x02\x024\x01\x02\x13"},
{"math/bits", "\xc5\x02"},
{"math/cmplx", "\xf7\x01\x02"},
{"math/rand", "\xb5\x01B;\x01\x12"},
{"math/rand/v2", "m,\x02\\\x02L"},
{"mime", "\x02\x01b\b\x03z\f \x17\x03\x02\x0f\x02"},
{"mime/multipart", "\x02\x01G#\x03E5\f\x01\x06\x02\x15\x02\x06\x11\x02\x01\x15"},
{"mime/quotedprintable", "\x02\x01mz"},
{"net", "\x04\t`+\x1d\a\x04\x05\f\x01\x04\x14\x01%\x06\r\n\x05\x01\x01\v\x06\a"},
{"net/http", "\x02\x01\x04\x04\x02=\b\x13\x01\a\x03E5\x01\x03\b\x01\x02\x02\x02\x01\x02\x06\x02\x01\x01\n\x01\x01\x05\x01\x02\x05\n\x01\x01\x01\x02\x01\x01\v\x02\x02\x02\b\x01\x01\x01"},
{"net/http/cgi", "\x02P\x1b\x03z\x04\b\n\x01\x13\x01\x01\x01\x04\x01\x05\x02\n\x02\x01\x0f\x0e"},
{"net/http/cookiejar", "\x04i\x03\x90\x01\x01\b\f\x18\x03\x02\r\x04"},
{"net/http/fcgi", "\x02\x01\nY\a\x03z\x16\x01\x01\x14\x1a\x02\r"},
{"net/http/httptest", "\x02\x01\nE\x02\x1b\x01z\x04\x12\x01\n\t\x02\x19\x01\x02\r\x0e"},
{"net/http/httptrace", "\rEn@\x14\n!"},
{"net/http/httputil", "\x02\x01\n`\x03z\x04\x0f\x03\x01\x05\x02\x01\v\x01\x1b\x02\r\x0e"},
{"net/http/internal", "\x02\x01j\x03z"},
{"net/http/internal/ascii", "\xb0\x02\x11"},
{"net/http/internal/httpcommon", "\r`\x03\x96\x01\x0e\x01\x19\x01\x01\x02\x1b\x02"},
{"net/http/internal/testcert", "\xb0\x02"},
{"net/http/pprof", "\x02\x01\nc\x19,\x11$\x04\x13\x14\x01\r\x06\x03\x01\x02\x01\x0f"},
{"net/internal/cgotest", ""},
{"net/internal/socktest", "p\xc2\x01\x02"},
{"net/mail", "\x02k\x03z\x04\x0f\x03\x14\x1c\x02\r\x04"},
{"net/netip", "\x04i+\x01#;\x026\x15"},
{"net/rpc", "\x02f\x05\x03\x10\n`\x04\x12\x01\x1d\x0f\x03\x02"},
{"net/rpc/jsonrpc", "j\x03\x03z\x16\x11!"},
{"net/smtp", "\x19.\v\x13\b\x03z\x16\x14\x1c"},
{"net/textproto", "\x02\x01j\x03z\r\t/\x01\x02\x13"},
{"net/url", "m\x03\x86\x01%\x12\x02\x01\x15"},
{"os", "m+\x01\x18\x03\b\t\r\x03\x01\x04\x10\x018\n\x05\x01\x01\v\x06"},
{"os/exec", "\x03\n`H \x01\x14\x01+\x06\a\f\x01\x04\v"},
{"os/exec/internal/fdtest", "\xb4\x02"},
{"os/signal", "\r\x89\x02\x17\x05\x02"},
{"os/user", "\x02\x01j\x03z,\r\f\x01\x02"},
{"path", "m+\xab\x01"},
{"path/filepath", "m+\x19:+\r\n\x03\x04\x0f"},
{"plugin", "m"},
{"reflect", "m'\x04\x1c\b\f\x04\x02\x19\x10,\f\x03\x0f\x02\x02"},
{"reflect/internal/example1", ""},
{"reflect/internal/example2", ""},
{"regexp", "\x03\xe7\x018\v\x02\x01\x02\x0f\x02"},
{"regexp/syntax", "\xad\x02\x01\x01\x01\x11\x02"},
{"runtime", "\x94\x01\x04\x01\x02\f\x06\a\x02\x01\x01\x0f\x03\x01\x01\x01\x01\x01\x03\x0fd"},
{"runtime/coverage", "\x9f\x01K"},
{"runtime/debug", "pUQ\r\n\x02\x01\x0f\x06"},
{"runtime/internal/startlinetest", ""},
{"runtime/internal/wasitest", ""},
{"runtime/metrics", "\xb6\x01A,\""},
{"runtime/pprof", "\x02\x01\x01\x03\x06Y\a\x03$3#\r\x1f\r\n\x01\x01\x01\x02\x02\b\x03\x06"},
{"runtime/race", "\xab\x02"},
{"runtime/race/internal/amd64v1", ""},
{"runtime/trace", "\rcz9\x0f\x01\x12"},
{"slices", "\x04\xe9\x01\fL"},
{"sort", "\xc9\x0104"},
{"strconv", "m+:%\x02J"},
{"strings", "m'\x04:\x18\x03\f9\x0f\x02\x02"},
{"structs", ""},
{"sync", "\xc8\x01\vP\x10\x12"},
{"sync/atomic", "\xc5\x02"},
{"syscall", "m(\x03\x01\x1b\b\x03\x03\x06\aT\n\x05\x01\x12"},
{"testing", "\x03\n`\x02\x01X\x0f\x13\r\x04\x1b\x06\x02\x05\x02\a\x01\x02\x01\x02\x01\f\x02\x02\x02"},
{"testing/fstest", "m\x03z\x01\v%\x12\x03\b\a"},
{"testing/internal/testdeps", "\x02\v\xa6\x01'\x10,\x03\x05\x03\b\a\x02\r"},
{"testing/iotest", "\x03j\x03z\x04"},
{"testing/quick", "o\x01\x87\x01\x04#\x12\x0f"},
{"testing/slogtest", "\r`\x03\x80\x01.\x05\x12\n"},
{"text/scanner", "\x03mz,+\x02"},
{"text/tabwriter", "pzY"},
{"text/template", "m\x03B8\x01\v\x1f\x01\x05\x01\x02\x05\r\x02\f\x03\x02"},
{"text/template/parse", "\x03m\xb3\x01\f\x01\x11\x02"},
{"time", "m+\x1d\x1d'*\x0f\x02\x11"},
{"time/tzdata", "m\xc7\x01\x11"},
{"unicode", ""},
{"unicode/utf16", ""},
{"unicode/utf8", ""},
{"unique", "\x94\x01>\x01P\x0f\x13\x12"},
{"unsafe", ""},
{"vendor/golang.org/x/crypto/chacha20", "\x10V\a\x8c\x01*'"},
{"vendor/golang.org/x/crypto/chacha20poly1305", "\x10V\a\xd9\x01\x04\x01\a"},
{"vendor/golang.org/x/crypto/cryptobyte", "c\n\x03\x88\x01&!\n"},
{"vendor/golang.org/x/crypto/cryptobyte/asn1", ""},
{"vendor/golang.org/x/crypto/internal/alias", "\xc5\x02"},
{"vendor/golang.org/x/crypto/internal/poly1305", "Q\x15\x93\x01"},
{"vendor/golang.org/x/net/dns/dnsmessage", "m"},
{"vendor/golang.org/x/net/http/httpguts", "\x80\x02\x14\x1c\x13\r"},
{"vendor/golang.org/x/net/http/httpproxy", "m\x03\x90\x01\x15\x01\x1a\x13\r"},
{"vendor/golang.org/x/net/http2/hpack", "\x03j\x03zH"},
{"vendor/golang.org/x/net/idna", "p\x87\x019\x13\x10\x02\x01"},
{"vendor/golang.org/x/net/nettest", "\x03c\a\x03z\x11\x05\x16\x01\f\f\x01\x02\x02\x01\n"},
{"vendor/golang.org/x/sys/cpu", "\x96\x02\r\f\x01\x15"},
{"vendor/golang.org/x/text/secure/bidirule", "m\xd6\x01\x11\x01"},
{"vendor/golang.org/x/text/transform", "\x03j}Y"},
{"vendor/golang.org/x/text/unicode/bidi", "\x03\be~@\x15"},
{"vendor/golang.org/x/text/unicode/norm", "f\nzH\x11\x11"},
{"weak", "\x94\x01\x8f\x01\""},
}
vendor/golang.org/x/tools/internal/stdlib/import.go
Generated Vendored
+89
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@@ -0,0 +1,89 @@
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package stdlib
// This file provides the API for the import graph of the standard library.
//
// Be aware that the compiler-generated code for every package
// implicitly depends on package "runtime" and a handful of others
// (see runtimePkgs in GOROOT/src/cmd/internal/objabi/pkgspecial.go).
import (
"encoding/binary"
"iter"
"slices"
"strings"
)
// Imports returns the sequence of packages directly imported by the
// named standard packages, in name order.
// The imports of an unknown package are the empty set.
//
// The graph is built into the application and may differ from the
// graph in the Go source tree being analyzed by the application.
func Imports(pkgs ...string) iter.Seq[string] {
return func(yield func(string) bool) {
for _, pkg := range pkgs {
if i, ok := find(pkg); ok {
var depIndex uint64
for data := []byte(deps[i].deps); len(data) > 0; {
delta, n := binary.Uvarint(data)
depIndex += delta
if !yield(deps[depIndex].name) {
return
}
data = data[n:]
}
}
}
}
}
// Dependencies returns the set of all dependencies of the named
// standard packages, including the initial package,
// in a deterministic topological order.
// The dependencies of an unknown package are the empty set.
//
// The graph is built into the application and may differ from the
// graph in the Go source tree being analyzed by the application.
func Dependencies(pkgs ...string) iter.Seq[string] {
return func(yield func(string) bool) {
for _, pkg := range pkgs {
if i, ok := find(pkg); ok {
var seen [1 + len(deps)/8]byte // bit set of seen packages
var visit func(i int) bool
visit = func(i int) bool {
bit := byte(1) << (i % 8)
if seen[i/8]&bit == 0 {
seen[i/8] |= bit
var depIndex uint64
for data := []byte(deps[i].deps); len(data) > 0; {
delta, n := binary.Uvarint(data)
depIndex += delta
if !visit(int(depIndex)) {
return false
}
data = data[n:]
}
if !yield(deps[i].name) {
return false
}
}
return true
}
if !visit(i) {
return
}
}
}
}
}
// find returns the index of pkg in the deps table.
func find(pkg string) (int, bool) {
return slices.BinarySearchFunc(deps[:], pkg, func(p pkginfo, n string) int {
return strings.Compare(p.name, n)
})
}
vendor/golang.org/x/tools/internal/stdlib/manifest.go
Generated Vendored
+17676
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File diff suppressed because it is too large. Load diff
vendor/golang.org/x/tools/internal/stdlib/stdlib.go
Generated Vendored
+105
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@@ -0,0 +1,105 @@
// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:generate go run generate.go
// Package stdlib provides a table of all exported symbols in the
// standard library, along with the version at which they first
// appeared. It also provides the import graph of std packages.
package stdlib
import (
"fmt"
"strings"
)
type Symbol struct {
Name string
Kind Kind
Version Version // Go version that first included the symbol
// Signature provides the type of a function (defined only for Kind=Func).
// Imported types are denoted as pkg.T; pkg is not fully qualified.
// TODO(adonovan): use an unambiguous encoding that is parseable.
//
// Example2:
// func[M ~map[K]V, K comparable, V any](m M) M
// func(fi fs.FileInfo, link string) (*Header, error)
Signature string // if Kind == stdlib.Func
}
// A Kind indicates the kind of a symbol:
// function, variable, constant, type, and so on.
type Kind int8
const (
Invalid Kind = iota // Example name:
Type // "Buffer"
Func // "Println"
Var // "EOF"
Const // "Pi"
Field // "Point.X"
Method // "(*Buffer).Grow"
)
func (kind Kind) String() string {
return [...]string{
Invalid: "invalid",
Type: "type",
Func: "func",
Var: "var",
Const: "const",
Field: "field",
Method: "method",
}[kind]
}
// A Version represents a version of Go of the form "go1.%d".
type Version int8
// String returns a version string of the form "go1.23", without allocating.
func (v Version) String() string { return versions[v] }
var versions [30]string // (increase constant as needed)
func init() {
for i := range versions {
versions[i] = fmt.Sprintf("go1.%d", i)
}
}
// HasPackage reports whether the specified package path is part of
// the standard library's public API.
func HasPackage(path string) bool {
_, ok := PackageSymbols[path]
return ok
}
// SplitField splits the field symbol name into type and field
// components. It must be called only on Field symbols.
//
// Example: "File.Package" -> ("File", "Package")
func (sym *Symbol) SplitField() (typename, name string) {
if sym.Kind != Field {
panic("not a field")
}
typename, name, _ = strings.Cut(sym.Name, ".")
return
}
// SplitMethod splits the method symbol name into pointer, receiver,
// and method components. It must be called only on Method symbols.
//
// Example: "(*Buffer).Grow" -> (true, "Buffer", "Grow")
func (sym *Symbol) SplitMethod() (ptr bool, recv, name string) {
if sym.Kind != Method {
panic("not a method")
}
recv, name, _ = strings.Cut(sym.Name, ".")
recv = recv[len("(") : len(recv)-len(")")]
ptr = recv[0] == '*'
if ptr {
recv = recv[len("*"):]
}
return
}
vendor/golang.org/x/tools/internal/typeparams/common.go
Generated Vendored
+68
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@@ -0,0 +1,68 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package typeparams contains common utilities for writing tools that
// interact with generic Go code, as introduced with Go 1.18. It
// supplements the standard library APIs. Notably, the StructuralTerms
// API computes a minimal representation of the structural
// restrictions on a type parameter.
//
// An external version of these APIs is available in the
// golang.org/x/exp/typeparams module.
package typeparams
import (
"go/ast"
"go/token"
"go/types"
)
// UnpackIndexExpr extracts data from AST nodes that represent index
// expressions.
//
// For an ast.IndexExpr, the resulting indices slice will contain exactly one
// index expression. For an ast.IndexListExpr (go1.18+), it may have a variable
// number of index expressions.
//
// For nodes that don't represent index expressions, the first return value of
// UnpackIndexExpr will be nil.
func UnpackIndexExpr(n ast.Node) (x ast.Expr, lbrack token.Pos, indices []ast.Expr, rbrack token.Pos) {
switch e := n.(type) {
case *ast.IndexExpr:
return e.X, e.Lbrack, []ast.Expr{e.Index}, e.Rbrack
case *ast.IndexListExpr:
return e.X, e.Lbrack, e.Indices, e.Rbrack
}
return nil, token.NoPos, nil, token.NoPos
}
// PackIndexExpr returns an *ast.IndexExpr or *ast.IndexListExpr, depending on
// the cardinality of indices. Calling PackIndexExpr with len(indices) == 0
// will panic.
func PackIndexExpr(x ast.Expr, lbrack token.Pos, indices []ast.Expr, rbrack token.Pos) ast.Expr {
switch len(indices) {
case 0:
panic("empty indices")
case 1:
return &ast.IndexExpr{
X: x,
Lbrack: lbrack,
Index: indices[0],
Rbrack: rbrack,
}
default:
return &ast.IndexListExpr{
X: x,
Lbrack: lbrack,
Indices: indices,
Rbrack: rbrack,
}
}
}
// IsTypeParam reports whether t is a type parameter (or an alias of one).
func IsTypeParam(t types.Type) bool {
_, ok := types.Unalias(t).(*types.TypeParam)
return ok
}
vendor/golang.org/x/tools/internal/typeparams/coretype.go
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+155
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// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeparams
import (
"fmt"
"go/types"
)
// CoreType returns the core type of T or nil if T does not have a core type.
//
// See https://go.dev/ref/spec#Core_types for the definition of a core type.
func CoreType(T types.Type) types.Type {
U := T.Underlying()
if _, ok := U.(*types.Interface); !ok {
return U // for non-interface types,
}
terms, err := NormalTerms(U)
if len(terms) == 0 || err != nil {
// len(terms) -> empty type set of interface.
// err != nil => U is invalid, exceeds complexity bounds, or has an empty type set.
return nil // no core type.
}
U = terms[0].Type().Underlying()
var identical int // i in [0,identical) => Identical(U, terms[i].Type().Underlying())
for identical = 1; identical < len(terms); identical++ {
if !types.Identical(U, terms[identical].Type().Underlying()) {
break
}
}
if identical == len(terms) {
// https://go.dev/ref/spec#Core_types
// "There is a single type U which is the underlying type of all types in the type set of T"
return U
}
ch, ok := U.(*types.Chan)
if !ok {
return nil // no core type as identical < len(terms) and U is not a channel.
}
// https://go.dev/ref/spec#Core_types
// "the type chan E if T contains only bidirectional channels, or the type chan<- E or
// <-chan E depending on the direction of the directional channels present."
for chans := identical; chans < len(terms); chans++ {
curr, ok := terms[chans].Type().Underlying().(*types.Chan)
if !ok {
return nil
}
if !types.Identical(ch.Elem(), curr.Elem()) {
return nil // channel elements are not identical.
}
if ch.Dir() == types.SendRecv {
// ch is bidirectional. We can safely always use curr's direction.
ch = curr
} else if curr.Dir() != types.SendRecv && ch.Dir() != curr.Dir() {
// ch and curr are not bidirectional and not the same direction.
return nil
}
}
return ch
}
// NormalTerms returns a slice of terms representing the normalized structural
// type restrictions of a type, if any.
//
// For all types other than *types.TypeParam, *types.Interface, and
// *types.Union, this is just a single term with Tilde() == false and
// Type() == typ. For *types.TypeParam, *types.Interface, and *types.Union, see
// below.
//
// Structural type restrictions of a type parameter are created via
// non-interface types embedded in its constraint interface (directly, or via a
// chain of interface embeddings). For example, in the declaration type
// T[P interface{~int; m()}] int the structural restriction of the type
// parameter P is ~int.
//
// With interface embedding and unions, the specification of structural type
// restrictions may be arbitrarily complex. For example, consider the
// following:
//
// type A interface{ ~string|~[]byte }
//
// type B interface{ int|string }
//
// type C interface { ~string|~int }
//
// type T[P interface{ A|B; C }] int
//
// In this example, the structural type restriction of P is ~string|int: A|B
// expands to ~string|~[]byte|int|string, which reduces to ~string|~[]byte|int,
// which when intersected with C (~string|~int) yields ~string|int.
//
// NormalTerms computes these expansions and reductions, producing a
// "normalized" form of the embeddings. A structural restriction is normalized
// if it is a single union containing no interface terms, and is minimal in the
// sense that removing any term changes the set of types satisfying the
// constraint. It is left as a proof for the reader that, modulo sorting, there
// is exactly one such normalized form.
//
// Because the minimal representation always takes this form, NormalTerms
// returns a slice of tilde terms corresponding to the terms of the union in
// the normalized structural restriction. An error is returned if the type is
// invalid, exceeds complexity bounds, or has an empty type set. In the latter
// case, NormalTerms returns ErrEmptyTypeSet.
//
// NormalTerms makes no guarantees about the order of terms, except that it
// is deterministic.
func NormalTerms(T types.Type) ([]*types.Term, error) {
// typeSetOf(T) == typeSetOf(Unalias(T))
typ := types.Unalias(T)
if named, ok := typ.(*types.Named); ok {
typ = named.Underlying()
}
switch typ := typ.(type) {
case *types.TypeParam:
return StructuralTerms(typ)
case *types.Union:
return UnionTermSet(typ)
case *types.Interface:
return InterfaceTermSet(typ)
default:
return []*types.Term{types.NewTerm(false, T)}, nil
}
}
// Deref returns the type of the variable pointed to by t,
// if t's core type is a pointer; otherwise it returns t.
//
// Do not assume that Deref(T)==T implies T is not a pointer:
// consider "type T *T", for example.
//
// TODO(adonovan): ideally this would live in typesinternal, but that
// creates an import cycle. Move there when we melt this package down.
func Deref(t types.Type) types.Type {
if ptr, ok := CoreType(t).(*types.Pointer); ok {
return ptr.Elem()
}
return t
}
// MustDeref returns the type of the variable pointed to by t.
// It panics if t's core type is not a pointer.
//
// TODO(adonovan): ideally this would live in typesinternal, but that
// creates an import cycle. Move there when we melt this package down.
func MustDeref(t types.Type) types.Type {
if ptr, ok := CoreType(t).(*types.Pointer); ok {
return ptr.Elem()
}
panic(fmt.Sprintf("%v is not a pointer", t))
}
vendor/golang.org/x/tools/internal/typeparams/free.go
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// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeparams
import (
"go/types"
"golang.org/x/tools/internal/aliases"
)
// Free is a memoization of the set of free type parameters within a
// type. It makes a sequence of calls to [Free.Has] for overlapping
// types more efficient. The zero value is ready for use.
//
// NOTE: Adapted from go/types/infer.go. If it is later exported, factor.
type Free struct {
seen map[types.Type]bool
}
// Has reports whether the specified type has a free type parameter.
func (w *Free) Has(typ types.Type) (res bool) {
// detect cycles
if x, ok := w.seen[typ]; ok {
return x
}
if w.seen == nil {
w.seen = make(map[types.Type]bool)
}
w.seen[typ] = false
defer func() {
w.seen[typ] = res
}()
switch t := typ.(type) {
case nil, *types.Basic: // TODO(gri) should nil be handled here?
break
case *types.Alias:
if aliases.TypeParams(t).Len() > aliases.TypeArgs(t).Len() {
return true // This is an uninstantiated Alias.
}
// The expansion of an alias can have free type parameters,
// whether or not the alias itself has type parameters:
//
// func _[K comparable]() {
// type Set = map[K]bool // free(Set) = {K}
// type MapTo[V] = map[K]V // free(Map[foo]) = {V}
// }
//
// So, we must Unalias.
return w.Has(types.Unalias(t))
case *types.Array:
return w.Has(t.Elem())
case *types.Slice:
return w.Has(t.Elem())
case *types.Struct:
for i, n := 0, t.NumFields(); i < n; i++ {
if w.Has(t.Field(i).Type()) {
return true
}
}
case *types.Pointer:
return w.Has(t.Elem())
case *types.Tuple:
n := t.Len()
for i := range n {
if w.Has(t.At(i).Type()) {
return true
}
}
case *types.Signature:
// t.tparams may not be nil if we are looking at a signature
// of a generic function type (or an interface method) that is
// part of the type we're testing. We don't care about these type
// parameters.
// Similarly, the receiver of a method may declare (rather than
// use) type parameters, we don't care about those either.
// Thus, we only need to look at the input and result parameters.
return w.Has(t.Params()) || w.Has(t.Results())
case *types.Interface:
for i, n := 0, t.NumMethods(); i < n; i++ {
if w.Has(t.Method(i).Type()) {
return true
}
}
terms, err := InterfaceTermSet(t)
if err != nil {
return false // ill typed
}
for _, term := range terms {
if w.Has(term.Type()) {
return true
}
}
case *types.Map:
return w.Has(t.Key()) || w.Has(t.Elem())
case *types.Chan:
return w.Has(t.Elem())
case *types.Named:
args := t.TypeArgs()
if params := t.TypeParams(); params.Len() > args.Len() {
return true // this is an uninstantiated named type.
}
for i, n := 0, args.Len(); i < n; i++ {
if w.Has(args.At(i)) {
return true
}
}
return w.Has(t.Underlying()) // recurse for types local to parameterized functions
case *types.TypeParam:
return true
default:
panic(t) // unreachable
}
return false
}
vendor/golang.org/x/tools/internal/typeparams/normalize.go
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+218
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@@ -0,0 +1,218 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typeparams
import (
"errors"
"fmt"
"go/types"
"os"
"strings"
)
//go:generate go run copytermlist.go
const debug = false
var ErrEmptyTypeSet = errors.New("empty type set")
// StructuralTerms returns a slice of terms representing the normalized
// structural type restrictions of a type parameter, if any.
//
// Structural type restrictions of a type parameter are created via
// non-interface types embedded in its constraint interface (directly, or via a
// chain of interface embeddings). For example, in the declaration
//
// type T[P interface{~int; m()}] int
//
// the structural restriction of the type parameter P is ~int.
//
// With interface embedding and unions, the specification of structural type
// restrictions may be arbitrarily complex. For example, consider the
// following:
//
// type A interface{ ~string|~[]byte }
//
// type B interface{ int|string }
//
// type C interface { ~string|~int }
//
// type T[P interface{ A|B; C }] int
//
// In this example, the structural type restriction of P is ~string|int: A|B
// expands to ~string|~[]byte|int|string, which reduces to ~string|~[]byte|int,
// which when intersected with C (~string|~int) yields ~string|int.
//
// StructuralTerms computes these expansions and reductions, producing a
// "normalized" form of the embeddings. A structural restriction is normalized
// if it is a single union containing no interface terms, and is minimal in the
// sense that removing any term changes the set of types satisfying the
// constraint. It is left as a proof for the reader that, modulo sorting, there
// is exactly one such normalized form.
//
// Because the minimal representation always takes this form, StructuralTerms
// returns a slice of tilde terms corresponding to the terms of the union in
// the normalized structural restriction. An error is returned if the
// constraint interface is invalid, exceeds complexity bounds, or has an empty
// type set. In the latter case, StructuralTerms returns ErrEmptyTypeSet.
//
// StructuralTerms makes no guarantees about the order of terms, except that it
// is deterministic.
func StructuralTerms(tparam *types.TypeParam) ([]*types.Term, error) {
constraint := tparam.Constraint()
if constraint == nil {
return nil, fmt.Errorf("%s has nil constraint", tparam)
}
iface, _ := constraint.Underlying().(*types.Interface)
if iface == nil {
return nil, fmt.Errorf("constraint is %T, not *types.Interface", constraint.Underlying())
}
return InterfaceTermSet(iface)
}
// InterfaceTermSet computes the normalized terms for a constraint interface,
// returning an error if the term set cannot be computed or is empty. In the
// latter case, the error will be ErrEmptyTypeSet.
//
// See the documentation of StructuralTerms for more information on
// normalization.
func InterfaceTermSet(iface *types.Interface) ([]*types.Term, error) {
return computeTermSet(iface)
}
// UnionTermSet computes the normalized terms for a union, returning an error
// if the term set cannot be computed or is empty. In the latter case, the
// error will be ErrEmptyTypeSet.
//
// See the documentation of StructuralTerms for more information on
// normalization.
func UnionTermSet(union *types.Union) ([]*types.Term, error) {
return computeTermSet(union)
}
func computeTermSet(typ types.Type) ([]*types.Term, error) {
tset, err := computeTermSetInternal(typ, make(map[types.Type]*termSet), 0)
if err != nil {
return nil, err
}
if tset.terms.isEmpty() {
return nil, ErrEmptyTypeSet
}
if tset.terms.isAll() {
return nil, nil
}
var terms []*types.Term
for _, term := range tset.terms {
terms = append(terms, types.NewTerm(term.tilde, term.typ))
}
return terms, nil
}
// A termSet holds the normalized set of terms for a given type.
//
// The name termSet is intentionally distinct from 'type set': a type set is
// all types that implement a type (and includes method restrictions), whereas
// a term set just represents the structural restrictions on a type.
type termSet struct {
complete bool
terms termlist
}
func indentf(depth int, format string, args ...any) {
fmt.Fprintf(os.Stderr, strings.Repeat(".", depth)+format+"\n", args...)
}
func computeTermSetInternal(t types.Type, seen map[types.Type]*termSet, depth int) (res *termSet, err error) {
if t == nil {
panic("nil type")
}
if debug {
indentf(depth, "%s", t.String())
defer func() {
if err != nil {
indentf(depth, "=> %s", err)
} else {
indentf(depth, "=> %s", res.terms.String())
}
}()
}
const maxTermCount = 100
if tset, ok := seen[t]; ok {
if !tset.complete {
return nil, fmt.Errorf("cycle detected in the declaration of %s", t)
}
return tset, nil
}
// Mark the current type as seen to avoid infinite recursion.
tset := new(termSet)
defer func() {
tset.complete = true
}()
seen[t] = tset
switch u := t.Underlying().(type) {
case *types.Interface:
// The term set of an interface is the intersection of the term sets of its
// embedded types.
tset.terms = allTermlist
for i := 0; i < u.NumEmbeddeds(); i++ {
embedded := u.EmbeddedType(i)
if _, ok := embedded.Underlying().(*types.TypeParam); ok {
return nil, fmt.Errorf("invalid embedded type %T", embedded)
}
tset2, err := computeTermSetInternal(embedded, seen, depth+1)
if err != nil {
return nil, err
}
tset.terms = tset.terms.intersect(tset2.terms)
}
case *types.Union:
// The term set of a union is the union of term sets of its terms.
tset.terms = nil
for i := 0; i < u.Len(); i++ {
t := u.Term(i)
var terms termlist
switch t.Type().Underlying().(type) {
case *types.Interface:
tset2, err := computeTermSetInternal(t.Type(), seen, depth+1)
if err != nil {
return nil, err
}
terms = tset2.terms
case *types.TypeParam, *types.Union:
// A stand-alone type parameter or union is not permitted as union
// term.
return nil, fmt.Errorf("invalid union term %T", t)
default:
if t.Type() == types.Typ[types.Invalid] {
continue
}
terms = termlist{{t.Tilde(), t.Type()}}
}
tset.terms = tset.terms.union(terms)
if len(tset.terms) > maxTermCount {
return nil, fmt.Errorf("exceeded max term count %d", maxTermCount)
}
}
case *types.TypeParam:
panic("unreachable")
default:
// For all other types, the term set is just a single non-tilde term
// holding the type itself.
if u != types.Typ[types.Invalid] {
tset.terms = termlist{{false, t}}
}
}
return tset, nil
}
// under is a facade for the go/types internal function of the same name. It is
// used by typeterm.go.
func under(t types.Type) types.Type {
return t.Underlying()
}
vendor/golang.org/x/tools/internal/typeparams/termlist.go
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+169
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// Code generated by "go test -run=Generate -write=all"; DO NOT EDIT.
// Source: ../../cmd/compile/internal/types2/termlist.go
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Code generated by copytermlist.go DO NOT EDIT.
package typeparams
import (
"go/types"
"strings"
)
// A termlist represents the type set represented by the union
// t1 ∪ y2 ∪ ... tn of the type sets of the terms t1 to tn.
// A termlist is in normal form if all terms are disjoint.
// termlist operations don't require the operands to be in
// normal form.
type termlist []*term
// allTermlist represents the set of all types.
// It is in normal form.
var allTermlist = termlist{new(term)}
// termSep is the separator used between individual terms.
const termSep = " | "
// String prints the termlist exactly (without normalization).
func (xl termlist) String() string {
if len(xl) == 0 {
return "∅"
}
var buf strings.Builder
for i, x := range xl {
if i > 0 {
buf.WriteString(termSep)
}
buf.WriteString(x.String())
}
return buf.String()
}
// isEmpty reports whether the termlist xl represents the empty set of types.
func (xl termlist) isEmpty() bool {
// If there's a non-nil term, the entire list is not empty.
// If the termlist is in normal form, this requires at most
// one iteration.
for _, x := range xl {
if x != nil {
return false
}
}
return true
}
// isAll reports whether the termlist xl represents the set of all types.
func (xl termlist) isAll() bool {
// If there's a 𝓤 term, the entire list is 𝓤.
// If the termlist is in normal form, this requires at most
// one iteration.
for _, x := range xl {
if x != nil && x.typ == nil {
return true
}
}
return false
}
// norm returns the normal form of xl.
func (xl termlist) norm() termlist {
// Quadratic algorithm, but good enough for now.
// TODO(gri) fix asymptotic performance
used := make([]bool, len(xl))
var rl termlist
for i, xi := range xl {
if xi == nil || used[i] {
continue
}
for j := i + 1; j < len(xl); j++ {
xj := xl[j]
if xj == nil || used[j] {
continue
}
if u1, u2 := xi.union(xj); u2 == nil {
// If we encounter a 𝓤 term, the entire list is 𝓤.
// Exit early.
// (Note that this is not just an optimization;
// if we continue, we may end up with a 𝓤 term
// and other terms and the result would not be
// in normal form.)
if u1.typ == nil {
return allTermlist
}
xi = u1
used[j] = true // xj is now unioned into xi - ignore it in future iterations
}
}
rl = append(rl, xi)
}
return rl
}
// union returns the union xl ∪ yl.
func (xl termlist) union(yl termlist) termlist {
return append(xl, yl...).norm()
}
// intersect returns the intersection xl ∩ yl.
func (xl termlist) intersect(yl termlist) termlist {
if xl.isEmpty() || yl.isEmpty() {
return nil
}
// Quadratic algorithm, but good enough for now.
// TODO(gri) fix asymptotic performance
var rl termlist
for _, x := range xl {
for _, y := range yl {
if r := x.intersect(y); r != nil {
rl = append(rl, r)
}
}
}
return rl.norm()
}
// equal reports whether xl and yl represent the same type set.
func (xl termlist) equal(yl termlist) bool {
// TODO(gri) this should be more efficient
return xl.subsetOf(yl) && yl.subsetOf(xl)
}
// includes reports whether t ∈ xl.
func (xl termlist) includes(t types.Type) bool {
for _, x := range xl {
if x.includes(t) {
return true
}
}
return false
}
// supersetOf reports whether y ⊆ xl.
func (xl termlist) supersetOf(y *term) bool {
for _, x := range xl {
if y.subsetOf(x) {
return true
}
}
return false
}
// subsetOf reports whether xl ⊆ yl.
func (xl termlist) subsetOf(yl termlist) bool {
if yl.isEmpty() {
return xl.isEmpty()
}
// each term x of xl must be a subset of yl
for _, x := range xl {
if !yl.supersetOf(x) {
return false // x is not a subset yl
}
}
return true
}
vendor/golang.org/x/tools/internal/typeparams/typeterm.go
Generated Vendored
+172
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// Code generated by "go test -run=Generate -write=all"; DO NOT EDIT.
// Source: ../../cmd/compile/internal/types2/typeterm.go
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Code generated by copytermlist.go DO NOT EDIT.
package typeparams
import "go/types"
// A term describes elementary type sets:
//
// ∅: (*term)(nil) == ∅ // set of no types (empty set)
// 𝓤: &term{} == 𝓤 // set of all types (𝓤niverse)
// T: &term{false, T} == {T} // set of type T
// ~t: &term{true, t} == {t' | under(t') == t} // set of types with underlying type t
type term struct {
tilde bool // valid if typ != nil
typ types.Type
}
func (x *term) String() string {
switch {
case x == nil:
return "∅"
case x.typ == nil:
return "𝓤"
case x.tilde:
return "~" + x.typ.String()
default:
return x.typ.String()
}
}
// equal reports whether x and y represent the same type set.
func (x *term) equal(y *term) bool {
// easy cases
switch {
case x == nil || y == nil:
return x == y
case x.typ == nil || y.typ == nil:
return x.typ == y.typ
}
// ∅ ⊂ x, y ⊂ 𝓤
return x.tilde == y.tilde && types.Identical(x.typ, y.typ)
}
// union returns the union x ∪ y: zero, one, or two non-nil terms.
func (x *term) union(y *term) (_, _ *term) {
// easy cases
switch {
case x == nil && y == nil:
return nil, nil // ∅ ∪ ∅ == ∅
case x == nil:
return y, nil // ∅ ∪ y == y
case y == nil:
return x, nil // x ∪ ∅ == x
case x.typ == nil:
return x, nil // 𝓤 ∪ y == 𝓤
case y.typ == nil:
return y, nil // x ∪ 𝓤 == 𝓤
}
// ∅ ⊂ x, y ⊂ 𝓤
if x.disjoint(y) {
return x, y // x ∪ y == (x, y) if x ∩ y == ∅
}
// x.typ == y.typ
// ~t ∪ ~t == ~t
// ~t ∪ T == ~t
// T ∪ ~t == ~t
// T ∪ T == T
if x.tilde || !y.tilde {
return x, nil
}
return y, nil
}
// intersect returns the intersection x ∩ y.
func (x *term) intersect(y *term) *term {
// easy cases
switch {
case x == nil || y == nil:
return nil // ∅ ∩ y == ∅ and ∩ ∅ == ∅
case x.typ == nil:
return y // 𝓤 ∩ y == y
case y.typ == nil:
return x // x ∩ 𝓤 == x
}
// ∅ ⊂ x, y ⊂ 𝓤
if x.disjoint(y) {
return nil // x ∩ y == ∅ if x ∩ y == ∅
}
// x.typ == y.typ
// ~t ∩ ~t == ~t
// ~t ∩ T == T
// T ∩ ~t == T
// T ∩ T == T
if !x.tilde || y.tilde {
return x
}
return y
}
// includes reports whether t ∈ x.
func (x *term) includes(t types.Type) bool {
// easy cases
switch {
case x == nil:
return false // t ∈ ∅ == false
case x.typ == nil:
return true // t ∈ 𝓤 == true
}
// ∅ ⊂ x ⊂ 𝓤
u := t
if x.tilde {
u = under(u)
}
return types.Identical(x.typ, u)
}
// subsetOf reports whether x ⊆ y.
func (x *term) subsetOf(y *term) bool {
// easy cases
switch {
case x == nil:
return true // ∅ ⊆ y == true
case y == nil:
return false // x ⊆ ∅ == false since x != ∅
case y.typ == nil:
return true // x ⊆ 𝓤 == true
case x.typ == nil:
return false // 𝓤 ⊆ y == false since y != 𝓤
}
// ∅ ⊂ x, y ⊂ 𝓤
if x.disjoint(y) {
return false // x ⊆ y == false if x ∩ y == ∅
}
// x.typ == y.typ
// ~t ⊆ ~t == true
// ~t ⊆ T == false
// T ⊆ ~t == true
// T ⊆ T == true
return !x.tilde || y.tilde
}
// disjoint reports whether x ∩ y == ∅.
// x.typ and y.typ must not be nil.
func (x *term) disjoint(y *term) bool {
if debug && (x.typ == nil || y.typ == nil) {
panic("invalid argument(s)")
}
ux := x.typ
if y.tilde {
ux = under(ux)
}
uy := y.typ
if x.tilde {
uy = under(uy)
}
return !types.Identical(ux, uy)
}
vendor/golang.org/x/tools/internal/typesinternal/classify_call.go
Generated Vendored
+137
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@@ -0,0 +1,137 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
import (
"fmt"
"go/ast"
"go/types"
_ "unsafe"
)
// CallKind describes the function position of an [*ast.CallExpr].
type CallKind int
const (
CallStatic CallKind = iota // static call to known function
CallInterface // dynamic call through an interface method
CallDynamic // dynamic call of a func value
CallBuiltin // call to a builtin function
CallConversion // a conversion (not a call)
)
var callKindNames = []string{
"CallStatic",
"CallInterface",
"CallDynamic",
"CallBuiltin",
"CallConversion",
}
func (k CallKind) String() string {
if i := int(k); i >= 0 && i < len(callKindNames) {
return callKindNames[i]
}
return fmt.Sprintf("typeutil.CallKind(%d)", k)
}
// ClassifyCall classifies the function position of a call expression ([*ast.CallExpr]).
// It distinguishes among true function calls, calls to builtins, and type conversions,
// and further classifies function calls as static calls (where the function is known),
// dynamic interface calls, and other dynamic calls.
//
// For the declarations:
//
// func f() {}
// func g[T any]() {}
// var v func()
// var s []func()
// type I interface { M() }
// var i I
//
// ClassifyCall returns the following:
//
// f() CallStatic
// g[int]() CallStatic
// i.M() CallInterface
// min(1, 2) CallBuiltin
// v() CallDynamic
// s[0]() CallDynamic
// int(x) CallConversion
// []byte("") CallConversion
func ClassifyCall(info *types.Info, call *ast.CallExpr) CallKind {
if info.Types == nil {
panic("ClassifyCall: info.Types is nil")
}
tv := info.Types[call.Fun]
if tv.IsType() {
return CallConversion
}
if tv.IsBuiltin() {
return CallBuiltin
}
obj := info.Uses[UsedIdent(info, call.Fun)]
// Classify the call by the type of the object, if any.
switch obj := obj.(type) {
case *types.Func:
if interfaceMethod(obj) {
return CallInterface
}
return CallStatic
default:
return CallDynamic
}
}
// UsedIdent returns the identifier such that info.Uses[UsedIdent(info, e)]
// is the [types.Object] used by e, if any.
//
// If e is one of various forms of reference:
//
// f, c, v, T lexical reference
// pkg.X qualified identifier
// f[T] or pkg.F[K,V] instantiations of the above kinds
// expr.f field or method value selector
// T.f method expression selector
//
// UsedIdent returns the identifier whose is associated value in [types.Info.Uses]
// is the object to which it refers.
//
// For the declarations:
//
// func F[T any] {...}
// type I interface { M() }
// var (
// x int
// s struct { f int }
// a []int
// i I
// )
//
// UsedIdent returns the following:
//
// Expr UsedIdent
// x x
// s.f f
// F[int] F
// i.M M
// I.M M
// min min
// int int
// 1 nil
// a[0] nil
// []byte nil
//
// Note: if e is an instantiated function or method, UsedIdent returns
// the corresponding generic function or method on the generic type.
func UsedIdent(info *types.Info, e ast.Expr) *ast.Ident {
return usedIdent(info, e)
}
//go:linkname usedIdent golang.org/x/tools/go/types/typeutil.usedIdent
func usedIdent(info *types.Info, e ast.Expr) *ast.Ident
//go:linkname interfaceMethod golang.org/x/tools/go/types/typeutil.interfaceMethod
func interfaceMethod(f *types.Func) bool
vendor/golang.org/x/tools/internal/typesinternal/element.go
Generated Vendored
+133
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@@ -0,0 +1,133 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
import (
"fmt"
"go/types"
"golang.org/x/tools/go/types/typeutil"
)
// ForEachElement calls f for type T and each type reachable from its
// type through reflection. It does this by recursively stripping off
// type constructors; in addition, for each named type N, the type *N
// is added to the result as it may have additional methods.
//
// The caller must provide an initially empty set used to de-duplicate
// identical types, potentially across multiple calls to ForEachElement.
// (Its final value holds all the elements seen, matching the arguments
// passed to f.)
//
// TODO(adonovan): share/harmonize with go/callgraph/rta.
func ForEachElement(rtypes *typeutil.Map, msets *typeutil.MethodSetCache, T types.Type, f func(types.Type)) {
var visit func(T types.Type, skip bool)
visit = func(T types.Type, skip bool) {
if !skip {
if seen, _ := rtypes.Set(T, true).(bool); seen {
return // de-dup
}
f(T) // notify caller of new element type
}
// Recursion over signatures of each method.
tmset := msets.MethodSet(T)
for i := 0; i < tmset.Len(); i++ {
sig := tmset.At(i).Type().(*types.Signature)
// It is tempting to call visit(sig, false)
// but, as noted in golang.org/cl/65450043,
// the Signature.Recv field is ignored by
// types.Identical and typeutil.Map, which
// is confusing at best.
//
// More importantly, the true signature rtype
// reachable from a method using reflection
// has no receiver but an extra ordinary parameter.
// For the Read method of io.Reader we want:
// func(Reader, []byte) (int, error)
// but here sig is:
// func([]byte) (int, error)
// with .Recv = Reader (though it is hard to
// notice because it doesn't affect Signature.String
// or types.Identical).
//
// TODO(adonovan): construct and visit the correct
// non-method signature with an extra parameter
// (though since unnamed func types have no methods
// there is essentially no actual demand for this).
//
// TODO(adonovan): document whether or not it is
// safe to skip non-exported methods (as RTA does).
visit(sig.Params(), true) // skip the Tuple
visit(sig.Results(), true) // skip the Tuple
}
switch T := T.(type) {
case *types.Alias:
visit(types.Unalias(T), skip) // emulates the pre-Alias behavior
case *types.Basic:
// nop
case *types.Interface:
// nop---handled by recursion over method set.
case *types.Pointer:
visit(T.Elem(), false)
case *types.Slice:
visit(T.Elem(), false)
case *types.Chan:
visit(T.Elem(), false)
case *types.Map:
visit(T.Key(), false)
visit(T.Elem(), false)
case *types.Signature:
if T.Recv() != nil {
panic(fmt.Sprintf("Signature %s has Recv %s", T, T.Recv()))
}
visit(T.Params(), true) // skip the Tuple
visit(T.Results(), true) // skip the Tuple
case *types.Named:
// A pointer-to-named type can be derived from a named
// type via reflection. It may have methods too.
visit(types.NewPointer(T), false)
// Consider 'type T struct{S}' where S has methods.
// Reflection provides no way to get from T to struct{S},
// only to S, so the method set of struct{S} is unwanted,
// so set 'skip' flag during recursion.
visit(T.Underlying(), true) // skip the unnamed type
case *types.Array:
visit(T.Elem(), false)
case *types.Struct:
for i, n := 0, T.NumFields(); i < n; i++ {
// TODO(adonovan): document whether or not
// it is safe to skip non-exported fields.
visit(T.Field(i).Type(), false)
}
case *types.Tuple:
for i, n := 0, T.Len(); i < n; i++ {
visit(T.At(i).Type(), false)
}
case *types.TypeParam, *types.Union:
// forEachReachable must not be called on parameterized types.
panic(T)
default:
panic(T)
}
}
visit(T, false)
}
vendor/golang.org/x/tools/internal/typesinternal/errorcode.go
Generated Vendored
+1560
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File diff suppressed because it is too large. Load diff
vendor/golang.org/x/tools/internal/typesinternal/errorcode_string.go
Generated Vendored
+179
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@@ -0,0 +1,179 @@
// Code generated by "stringer -type=ErrorCode"; DO NOT EDIT.
package typesinternal
import "strconv"
func _() {
// An "invalid array index" compiler error signifies that the constant values have changed.
// Re-run the stringer command to generate them again.
var x [1]struct{}
_ = x[InvalidSyntaxTree - -1]
_ = x[Test-1]
_ = x[BlankPkgName-2]
_ = x[MismatchedPkgName-3]
_ = x[InvalidPkgUse-4]
_ = x[BadImportPath-5]
_ = x[BrokenImport-6]
_ = x[ImportCRenamed-7]
_ = x[UnusedImport-8]
_ = x[InvalidInitCycle-9]
_ = x[DuplicateDecl-10]
_ = x[InvalidDeclCycle-11]
_ = x[InvalidTypeCycle-12]
_ = x[InvalidConstInit-13]
_ = x[InvalidConstVal-14]
_ = x[InvalidConstType-15]
_ = x[UntypedNilUse-16]
_ = x[WrongAssignCount-17]
_ = x[UnassignableOperand-18]
_ = x[NoNewVar-19]
_ = x[MultiValAssignOp-20]
_ = x[InvalidIfaceAssign-21]
_ = x[InvalidChanAssign-22]
_ = x[IncompatibleAssign-23]
_ = x[UnaddressableFieldAssign-24]
_ = x[NotAType-25]
_ = x[InvalidArrayLen-26]
_ = x[BlankIfaceMethod-27]
_ = x[IncomparableMapKey-28]
_ = x[InvalidIfaceEmbed-29]
_ = x[InvalidPtrEmbed-30]
_ = x[BadRecv-31]
_ = x[InvalidRecv-32]
_ = x[DuplicateFieldAndMethod-33]
_ = x[DuplicateMethod-34]
_ = x[InvalidBlank-35]
_ = x[InvalidIota-36]
_ = x[MissingInitBody-37]
_ = x[InvalidInitSig-38]
_ = x[InvalidInitDecl-39]
_ = x[InvalidMainDecl-40]
_ = x[TooManyValues-41]
_ = x[NotAnExpr-42]
_ = x[TruncatedFloat-43]
_ = x[NumericOverflow-44]
_ = x[UndefinedOp-45]
_ = x[MismatchedTypes-46]
_ = x[DivByZero-47]
_ = x[NonNumericIncDec-48]
_ = x[UnaddressableOperand-49]
_ = x[InvalidIndirection-50]
_ = x[NonIndexableOperand-51]
_ = x[InvalidIndex-52]
_ = x[SwappedSliceIndices-53]
_ = x[NonSliceableOperand-54]
_ = x[InvalidSliceExpr-55]
_ = x[InvalidShiftCount-56]
_ = x[InvalidShiftOperand-57]
_ = x[InvalidReceive-58]
_ = x[InvalidSend-59]
_ = x[DuplicateLitKey-60]
_ = x[MissingLitKey-61]
_ = x[InvalidLitIndex-62]
_ = x[OversizeArrayLit-63]
_ = x[MixedStructLit-64]
_ = x[InvalidStructLit-65]
_ = x[MissingLitField-66]
_ = x[DuplicateLitField-67]
_ = x[UnexportedLitField-68]
_ = x[InvalidLitField-69]
_ = x[UntypedLit-70]
_ = x[InvalidLit-71]
_ = x[AmbiguousSelector-72]
_ = x[UndeclaredImportedName-73]
_ = x[UnexportedName-74]
_ = x[UndeclaredName-75]
_ = x[MissingFieldOrMethod-76]
_ = x[BadDotDotDotSyntax-77]
_ = x[NonVariadicDotDotDot-78]
_ = x[MisplacedDotDotDot-79]
_ = x[InvalidDotDotDotOperand-80]
_ = x[InvalidDotDotDot-81]
_ = x[UncalledBuiltin-82]
_ = x[InvalidAppend-83]
_ = x[InvalidCap-84]
_ = x[InvalidClose-85]
_ = x[InvalidCopy-86]
_ = x[InvalidComplex-87]
_ = x[InvalidDelete-88]
_ = x[InvalidImag-89]
_ = x[InvalidLen-90]
_ = x[SwappedMakeArgs-91]
_ = x[InvalidMake-92]
_ = x[InvalidReal-93]
_ = x[InvalidAssert-94]
_ = x[ImpossibleAssert-95]
_ = x[InvalidConversion-96]
_ = x[InvalidUntypedConversion-97]
_ = x[BadOffsetofSyntax-98]
_ = x[InvalidOffsetof-99]
_ = x[UnusedExpr-100]
_ = x[UnusedVar-101]
_ = x[MissingReturn-102]
_ = x[WrongResultCount-103]
_ = x[OutOfScopeResult-104]
_ = x[InvalidCond-105]
_ = x[InvalidPostDecl-106]
_ = x[InvalidChanRange-107]
_ = x[InvalidIterVar-108]
_ = x[InvalidRangeExpr-109]
_ = x[MisplacedBreak-110]
_ = x[MisplacedContinue-111]
_ = x[MisplacedFallthrough-112]
_ = x[DuplicateCase-113]
_ = x[DuplicateDefault-114]
_ = x[BadTypeKeyword-115]
_ = x[InvalidTypeSwitch-116]
_ = x[InvalidExprSwitch-117]
_ = x[InvalidSelectCase-118]
_ = x[UndeclaredLabel-119]
_ = x[DuplicateLabel-120]
_ = x[MisplacedLabel-121]
_ = x[UnusedLabel-122]
_ = x[JumpOverDecl-123]
_ = x[JumpIntoBlock-124]
_ = x[InvalidMethodExpr-125]
_ = x[WrongArgCount-126]
_ = x[InvalidCall-127]
_ = x[UnusedResults-128]
_ = x[InvalidDefer-129]
_ = x[InvalidGo-130]
_ = x[BadDecl-131]
_ = x[RepeatedDecl-132]
_ = x[InvalidUnsafeAdd-133]
_ = x[InvalidUnsafeSlice-134]
_ = x[UnsupportedFeature-135]
_ = x[NotAGenericType-136]
_ = x[WrongTypeArgCount-137]
_ = x[CannotInferTypeArgs-138]
_ = x[InvalidTypeArg-139]
_ = x[InvalidInstanceCycle-140]
_ = x[InvalidUnion-141]
_ = x[MisplacedConstraintIface-142]
_ = x[InvalidMethodTypeParams-143]
_ = x[MisplacedTypeParam-144]
_ = x[InvalidUnsafeSliceData-145]
_ = x[InvalidUnsafeString-146]
}
const (
_ErrorCode_name_0 = "InvalidSyntaxTree"
_ErrorCode_name_1 = "TestBlankPkgNameMismatchedPkgNameInvalidPkgUseBadImportPathBrokenImportImportCRenamedUnusedImportInvalidInitCycleDuplicateDeclInvalidDeclCycleInvalidTypeCycleInvalidConstInitInvalidConstValInvalidConstTypeUntypedNilUseWrongAssignCountUnassignableOperandNoNewVarMultiValAssignOpInvalidIfaceAssignInvalidChanAssignIncompatibleAssignUnaddressableFieldAssignNotATypeInvalidArrayLenBlankIfaceMethodIncomparableMapKeyInvalidIfaceEmbedInvalidPtrEmbedBadRecvInvalidRecvDuplicateFieldAndMethodDuplicateMethodInvalidBlankInvalidIotaMissingInitBodyInvalidInitSigInvalidInitDeclInvalidMainDeclTooManyValuesNotAnExprTruncatedFloatNumericOverflowUndefinedOpMismatchedTypesDivByZeroNonNumericIncDecUnaddressableOperandInvalidIndirectionNonIndexableOperandInvalidIndexSwappedSliceIndicesNonSliceableOperandInvalidSliceExprInvalidShiftCountInvalidShiftOperandInvalidReceiveInvalidSendDuplicateLitKeyMissingLitKeyInvalidLitIndexOversizeArrayLitMixedStructLitInvalidStructLitMissingLitFieldDuplicateLitFieldUnexportedLitFieldInvalidLitFieldUntypedLitInvalidLitAmbiguousSelectorUndeclaredImportedNameUnexportedNameUndeclaredNameMissingFieldOrMethodBadDotDotDotSyntaxNonVariadicDotDotDotMisplacedDotDotDotInvalidDotDotDotOperandInvalidDotDotDotUncalledBuiltinInvalidAppendInvalidCapInvalidCloseInvalidCopyInvalidComplexInvalidDeleteInvalidImagInvalidLenSwappedMakeArgsInvalidMakeInvalidRealInvalidAssertImpossibleAssertInvalidConversionInvalidUntypedConversionBadOffsetofSyntaxInvalidOffsetofUnusedExprUnusedVarMissingReturnWrongResultCountOutOfScopeResultInvalidCondInvalidPostDeclInvalidChanRangeInvalidIterVarInvalidRangeExprMisplacedBreakMisplacedContinueMisplacedFallthroughDuplicateCaseDuplicateDefaultBadTypeKeywordInvalidTypeSwitchInvalidExprSwitchInvalidSelectCaseUndeclaredLabelDuplicateLabelMisplacedLabelUnusedLabelJumpOverDeclJumpIntoBlockInvalidMethodExprWrongArgCountInvalidCallUnusedResultsInvalidDeferInvalidGoBadDeclRepeatedDeclInvalidUnsafeAddInvalidUnsafeSliceUnsupportedFeatureNotAGenericTypeWrongTypeArgCountCannotInferTypeArgsInvalidTypeArgInvalidInstanceCycleInvalidUnionMisplacedConstraintIfaceInvalidMethodTypeParamsMisplacedTypeParamInvalidUnsafeSliceDataInvalidUnsafeString"
)
var (
_ErrorCode_index_1 = [...]uint16{0, 4, 16, 33, 46, 59, 71, 85, 97, 113, 126, 142, 158, 174, 189, 205, 218, 234, 253, 261, 277, 295, 312, 330, 354, 362, 377, 393, 411, 428, 443, 450, 461, 484, 499, 511, 522, 537, 551, 566, 581, 594, 603, 617, 632, 643, 658, 667, 683, 703, 721, 740, 752, 771, 790, 806, 823, 842, 856, 867, 882, 895, 910, 926, 940, 956, 971, 988, 1006, 1021, 1031, 1041, 1058, 1080, 1094, 1108, 1128, 1146, 1166, 1184, 1207, 1223, 1238, 1251, 1261, 1273, 1284, 1298, 1311, 1322, 1332, 1347, 1358, 1369, 1382, 1398, 1415, 1439, 1456, 1471, 1481, 1490, 1503, 1519, 1535, 1546, 1561, 1577, 1591, 1607, 1621, 1638, 1658, 1671, 1687, 1701, 1718, 1735, 1752, 1767, 1781, 1795, 1806, 1818, 1831, 1848, 1861, 1872, 1885, 1897, 1906, 1913, 1925, 1941, 1959, 1977, 1992, 2009, 2028, 2042, 2062, 2074, 2098, 2121, 2139, 2161, 2180}
)
func (i ErrorCode) String() string {
switch {
case i == -1:
return _ErrorCode_name_0
case 1 <= i && i <= 146:
i -= 1
return _ErrorCode_name_1[_ErrorCode_index_1[i]:_ErrorCode_index_1[i+1]]
default:
return "ErrorCode(" + strconv.FormatInt(int64(i), 10) + ")"
}
}
vendor/golang.org/x/tools/internal/typesinternal/qualifier.go
Generated Vendored
+46
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@@ -0,0 +1,46 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
import (
"go/ast"
"go/types"
"strconv"
)
// FileQualifier returns a [types.Qualifier] function that qualifies
// imported symbols appropriately based on the import environment of a given
// file.
// If the same package is imported multiple times, the last appearance is
// recorded.
func FileQualifier(f *ast.File, pkg *types.Package) types.Qualifier {
// Construct mapping of import paths to their defined names.
// It is only necessary to look at renaming imports.
imports := make(map[string]string)
for _, imp := range f.Imports {
if imp.Name != nil && imp.Name.Name != "_" {
path, _ := strconv.Unquote(imp.Path.Value)
imports[path] = imp.Name.Name
}
}
// Define qualifier to replace full package paths with names of the imports.
return func(p *types.Package) string {
if p == nil || p == pkg {
return ""
}
if name, ok := imports[p.Path()]; ok {
if name == "." {
return ""
} else {
return name
}
}
// If there is no local renaming, fall back to the package name.
return p.Name()
}
}
vendor/golang.org/x/tools/internal/typesinternal/recv.go
Generated Vendored
+44
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@@ -0,0 +1,44 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
import (
"go/types"
)
// ReceiverNamed returns the named type (if any) associated with the
// type of recv, which may be of the form N or *N, or aliases thereof.
// It also reports whether a Pointer was present.
//
// The named result may be nil if recv is from a method on an
// anonymous interface or struct types or in ill-typed code.
func ReceiverNamed(recv *types.Var) (isPtr bool, named *types.Named) {
t := recv.Type()
if ptr, ok := types.Unalias(t).(*types.Pointer); ok {
isPtr = true
t = ptr.Elem()
}
named, _ = types.Unalias(t).(*types.Named)
return
}
// Unpointer returns T given *T or an alias thereof.
// For all other types it is the identity function.
// It does not look at underlying types.
// The result may be an alias.
//
// Use this function to strip off the optional pointer on a receiver
// in a field or method selection, without losing the named type
// (which is needed to compute the method set).
//
// See also [typeparams.MustDeref], which removes one level of
// indirection from the type, regardless of named types (analogous to
// a LOAD instruction).
func Unpointer(t types.Type) types.Type {
if ptr, ok := types.Unalias(t).(*types.Pointer); ok {
return ptr.Elem()
}
return t
}
vendor/golang.org/x/tools/internal/typesinternal/toonew.go
Generated Vendored
+89
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@@ -0,0 +1,89 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
import (
"go/types"
"golang.org/x/tools/internal/stdlib"
"golang.org/x/tools/internal/versions"
)
// TooNewStdSymbols computes the set of package-level symbols
// exported by pkg that are not available at the specified version.
// The result maps each symbol to its minimum version.
//
// The pkg is allowed to contain type errors.
func TooNewStdSymbols(pkg *types.Package, version string) map[types.Object]string {
disallowed := make(map[types.Object]string)
// Pass 1: package-level symbols.
symbols := stdlib.PackageSymbols[pkg.Path()]
for _, sym := range symbols {
symver := sym.Version.String()
if versions.Before(version, symver) {
switch sym.Kind {
case stdlib.Func, stdlib.Var, stdlib.Const, stdlib.Type:
disallowed[pkg.Scope().Lookup(sym.Name)] = symver
}
}
}
// Pass 2: fields and methods.
//
// We allow fields and methods if their associated type is
// disallowed, as otherwise we would report false positives
// for compatibility shims. Consider:
//
// //go:build go1.22
// type T struct { F std.Real } // correct new API
//
// //go:build !go1.22
// type T struct { F fake } // shim
// type fake struct { ... }
// func (fake) M () {}
//
// These alternative declarations of T use either the std.Real
// type, introduced in go1.22, or a fake type, for the field
// F. (The fakery could be arbitrarily deep, involving more
// nested fields and methods than are shown here.) Clients
// that use the compatibility shim T will compile with any
// version of go, whether older or newer than go1.22, but only
// the newer version will use the std.Real implementation.
//
// Now consider a reference to method M in new(T).F.M() in a
// module that requires a minimum of go1.21. The analysis may
// occur using a version of Go higher than 1.21, selecting the
// first version of T, so the method M is Real.M. This would
// spuriously cause the analyzer to report a reference to a
// too-new symbol even though this expression compiles just
// fine (with the fake implementation) using go1.21.
for _, sym := range symbols {
symVersion := sym.Version.String()
if !versions.Before(version, symVersion) {
continue // allowed
}
var obj types.Object
switch sym.Kind {
case stdlib.Field:
typename, name := sym.SplitField()
if t := pkg.Scope().Lookup(typename); t != nil && disallowed[t] == "" {
obj, _, _ = types.LookupFieldOrMethod(t.Type(), false, pkg, name)
}
case stdlib.Method:
ptr, recvname, name := sym.SplitMethod()
if t := pkg.Scope().Lookup(recvname); t != nil && disallowed[t] == "" {
obj, _, _ = types.LookupFieldOrMethod(t.Type(), ptr, pkg, name)
}
}
if obj != nil {
disallowed[obj] = symVersion
}
}
return disallowed
}
vendor/golang.org/x/tools/internal/typesinternal/types.go
Generated Vendored
+155
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@@ -0,0 +1,155 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package typesinternal provides access to internal go/types APIs that are not
// yet exported.
package typesinternal
import (
"go/ast"
"go/token"
"go/types"
"reflect"
"unsafe"
"golang.org/x/tools/internal/aliases"
)
func SetUsesCgo(conf *types.Config) bool {
v := reflect.ValueOf(conf).Elem()
f := v.FieldByName("go115UsesCgo")
if !f.IsValid() {
f = v.FieldByName("UsesCgo")
if !f.IsValid() {
return false
}
}
addr := unsafe.Pointer(f.UnsafeAddr())
*(*bool)(addr) = true
return true
}
// ErrorCodeStartEnd extracts additional information from types.Error values
// generated by Go version 1.16 and later: the error code, start position, and
// end position. If all positions are valid, start <= err.Pos <= end.
//
// If the data could not be read, the final result parameter will be false.
//
// TODO(adonovan): eliminate start/end when proposal #71803 is accepted.
func ErrorCodeStartEnd(err types.Error) (code ErrorCode, start, end token.Pos, ok bool) {
var data [3]int
// By coincidence all of these fields are ints, which simplifies things.
v := reflect.ValueOf(err)
for i, name := range []string{"go116code", "go116start", "go116end"} {
f := v.FieldByName(name)
if !f.IsValid() {
return 0, 0, 0, false
}
data[i] = int(f.Int())
}
return ErrorCode(data[0]), token.Pos(data[1]), token.Pos(data[2]), true
}
// NameRelativeTo returns a types.Qualifier that qualifies members of
// all packages other than pkg, using only the package name.
// (By contrast, [types.RelativeTo] uses the complete package path,
// which is often excessive.)
//
// If pkg is nil, it is equivalent to [*types.Package.Name].
func NameRelativeTo(pkg *types.Package) types.Qualifier {
return func(other *types.Package) string {
if pkg != nil && pkg == other {
return "" // same package; unqualified
}
return other.Name()
}
}
// TypeNameFor returns the type name symbol for the specified type, if
// it is a [*types.Alias], [*types.Named], [*types.TypeParam], or a
// [*types.Basic] representing a type.
//
// For all other types, and for Basic types representing a builtin,
// constant, or nil, it returns nil. Be careful not to convert the
// resulting nil pointer to a [types.Object]!
//
// If t is the type of a constant, it may be an "untyped" type, which
// has no TypeName. To access the name of such types (e.g. "untyped
// int"), use [types.Basic.Name].
func TypeNameFor(t types.Type) *types.TypeName {
switch t := t.(type) {
case *types.Alias:
return t.Obj()
case *types.Named:
return t.Obj()
case *types.TypeParam:
return t.Obj()
case *types.Basic:
// See issues #71886 and #66890 for some history.
if tname, ok := types.Universe.Lookup(t.Name()).(*types.TypeName); ok {
return tname
}
}
return nil
}
// A NamedOrAlias is a [types.Type] that is named (as
// defined by the spec) and capable of bearing type parameters: it
// abstracts aliases ([types.Alias]) and defined types
// ([types.Named]).
//
// Every type declared by an explicit "type" declaration is a
// NamedOrAlias. (Built-in type symbols may additionally
// have type [types.Basic], which is not a NamedOrAlias,
// though the spec regards them as "named"; see [TypeNameFor].)
//
// NamedOrAlias cannot expose the Origin method, because
// [types.Alias.Origin] and [types.Named.Origin] have different
// (covariant) result types; use [Origin] instead.
type NamedOrAlias interface {
types.Type
Obj() *types.TypeName
TypeArgs() *types.TypeList
TypeParams() *types.TypeParamList
SetTypeParams(tparams []*types.TypeParam)
}
var (
_ NamedOrAlias = (*types.Alias)(nil)
_ NamedOrAlias = (*types.Named)(nil)
)
// Origin returns the generic type of the Named or Alias type t if it
// is instantiated, otherwise it returns t.
func Origin(t NamedOrAlias) NamedOrAlias {
switch t := t.(type) {
case *types.Alias:
return aliases.Origin(t)
case *types.Named:
return t.Origin()
}
return t
}
// IsPackageLevel reports whether obj is a package-level symbol.
func IsPackageLevel(obj types.Object) bool {
return obj.Pkg() != nil && obj.Parent() == obj.Pkg().Scope()
}
// NewTypesInfo returns a *types.Info with all maps populated.
func NewTypesInfo() *types.Info {
return &types.Info{
Types: map[ast.Expr]types.TypeAndValue{},
Instances: map[*ast.Ident]types.Instance{},
Defs: map[*ast.Ident]types.Object{},
Uses: map[*ast.Ident]types.Object{},
Implicits: map[ast.Node]types.Object{},
Selections: map[*ast.SelectorExpr]*types.Selection{},
Scopes: map[ast.Node]*types.Scope{},
FileVersions: map[*ast.File]string{},
}
}
vendor/golang.org/x/tools/internal/typesinternal/varkind.go
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// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
// TODO(adonovan): when CL 645115 lands, define the go1.25 version of
// this API that actually does something.
import "go/types"
type VarKind uint8
const (
_ VarKind = iota // (not meaningful)
PackageVar // a package-level variable
LocalVar // a local variable
RecvVar // a method receiver variable
ParamVar // a function parameter variable
ResultVar // a function result variable
FieldVar // a struct field
)
func (kind VarKind) String() string {
return [...]string{
0: "VarKind(0)",
PackageVar: "PackageVar",
LocalVar: "LocalVar",
RecvVar: "RecvVar",
ParamVar: "ParamVar",
ResultVar: "ResultVar",
FieldVar: "FieldVar",
}[kind]
}
// GetVarKind returns an invalid VarKind.
func GetVarKind(v *types.Var) VarKind { return 0 }
// SetVarKind has no effect.
func SetVarKind(v *types.Var, kind VarKind) {}
vendor/golang.org/x/tools/internal/typesinternal/zerovalue.go
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// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package typesinternal
import (
"fmt"
"go/ast"
"go/token"
"go/types"
"strings"
)
// ZeroString returns the string representation of the zero value for any type t.
// The boolean result indicates whether the type is or contains an invalid type
// or a non-basic (constraint) interface type.
//
// Even for invalid input types, ZeroString may return a partially correct
// string representation. The caller should use the returned isValid boolean
// to determine the validity of the expression.
//
// When assigning to a wider type (such as 'any'), it's the caller's
// responsibility to handle any necessary type conversions.
//
// This string can be used on the right-hand side of an assignment where the
// left-hand side has that explicit type.
// References to named types are qualified by an appropriate (optional)
// qualifier function.
// Exception: This does not apply to tuples. Their string representation is
// informational only and cannot be used in an assignment.
//
// See [ZeroExpr] for a variant that returns an [ast.Expr].
func ZeroString(t types.Type, qual types.Qualifier) (_ string, isValid bool) {
switch t := t.(type) {
case *types.Basic:
switch {
case t.Info()&types.IsBoolean != 0:
return "false", true
case t.Info()&types.IsNumeric != 0:
return "0", true
case t.Info()&types.IsString != 0:
return `""`, true
case t.Kind() == types.UnsafePointer:
fallthrough
case t.Kind() == types.UntypedNil:
return "nil", true
case t.Kind() == types.Invalid:
return "invalid", false
default:
panic(fmt.Sprintf("ZeroString for unexpected type %v", t))
}
case *types.Pointer, *types.Slice, *types.Chan, *types.Map, *types.Signature:
return "nil", true
case *types.Interface:
if !t.IsMethodSet() {
return "invalid", false
}
return "nil", true
case *types.Named:
switch under := t.Underlying().(type) {
case *types.Struct, *types.Array:
return types.TypeString(t, qual) + "{}", true
default:
return ZeroString(under, qual)
}
case *types.Alias:
switch t.Underlying().(type) {
case *types.Struct, *types.Array:
return types.TypeString(t, qual) + "{}", true
default:
// A type parameter can have alias but alias type's underlying type
// can never be a type parameter.
// Use types.Unalias to preserve the info of type parameter instead
// of call Underlying() going right through and get the underlying
// type of the type parameter which is always an interface.
return ZeroString(types.Unalias(t), qual)
}
case *types.Array, *types.Struct:
return types.TypeString(t, qual) + "{}", true
case *types.TypeParam:
// Assumes func new is not shadowed.
return "*new(" + types.TypeString(t, qual) + ")", true
case *types.Tuple:
// Tuples are not normal values.
// We are currently format as "(t[0], ..., t[n])". Could be something else.
isValid := true
components := make([]string, t.Len())
for i := 0; i < t.Len(); i++ {
comp, ok := ZeroString(t.At(i).Type(), qual)
components[i] = comp
isValid = isValid && ok
}
return "(" + strings.Join(components, ", ") + ")", isValid
case *types.Union:
// Variables of these types cannot be created, so it makes
// no sense to ask for their zero value.
panic(fmt.Sprintf("invalid type for a variable: %v", t))
default:
panic(t) // unreachable.
}
}
// ZeroExpr returns the ast.Expr representation of the zero value for any type t.
// The boolean result indicates whether the type is or contains an invalid type
// or a non-basic (constraint) interface type.
//
// Even for invalid input types, ZeroExpr may return a partially correct ast.Expr
// representation. The caller should use the returned isValid boolean to determine
// the validity of the expression.
//
// This function is designed for types suitable for variables and should not be
// used with Tuple or Union types.References to named types are qualified by an
// appropriate (optional) qualifier function.
//
// See [ZeroString] for a variant that returns a string.
func ZeroExpr(t types.Type, qual types.Qualifier) (_ ast.Expr, isValid bool) {
switch t := t.(type) {
case *types.Basic:
switch {
case t.Info()&types.IsBoolean != 0:
return &ast.Ident{Name: "false"}, true
case t.Info()&types.IsNumeric != 0:
return &ast.BasicLit{Kind: token.INT, Value: "0"}, true
case t.Info()&types.IsString != 0:
return &ast.BasicLit{Kind: token.STRING, Value: `""`}, true
case t.Kind() == types.UnsafePointer:
fallthrough
case t.Kind() == types.UntypedNil:
return ast.NewIdent("nil"), true
case t.Kind() == types.Invalid:
return &ast.BasicLit{Kind: token.STRING, Value: `"invalid"`}, false
default:
panic(fmt.Sprintf("ZeroExpr for unexpected type %v", t))
}
case *types.Pointer, *types.Slice, *types.Chan, *types.Map, *types.Signature:
return ast.NewIdent("nil"), true
case *types.Interface:
if !t.IsMethodSet() {
return &ast.BasicLit{Kind: token.STRING, Value: `"invalid"`}, false
}
return ast.NewIdent("nil"), true
case *types.Named:
switch under := t.Underlying().(type) {
case *types.Struct, *types.Array:
return &ast.CompositeLit{
Type: TypeExpr(t, qual),
}, true
default:
return ZeroExpr(under, qual)
}
case *types.Alias:
switch t.Underlying().(type) {
case *types.Struct, *types.Array:
return &ast.CompositeLit{
Type: TypeExpr(t, qual),
}, true
default:
return ZeroExpr(types.Unalias(t), qual)
}
case *types.Array, *types.Struct:
return &ast.CompositeLit{
Type: TypeExpr(t, qual),
}, true
case *types.TypeParam:
return &ast.StarExpr{ // *new(T)
X: &ast.CallExpr{
// Assumes func new is not shadowed.
Fun: ast.NewIdent("new"),
Args: []ast.Expr{
ast.NewIdent(t.Obj().Name()),
},
},
}, true
case *types.Tuple:
// Unlike ZeroString, there is no ast.Expr can express tuple by
// "(t[0], ..., t[n])".
panic(fmt.Sprintf("invalid type for a variable: %v", t))
case *types.Union:
// Variables of these types cannot be created, so it makes
// no sense to ask for their zero value.
panic(fmt.Sprintf("invalid type for a variable: %v", t))
default:
panic(t) // unreachable.
}
}
// IsZeroExpr uses simple syntactic heuristics to report whether expr
// is a obvious zero value, such as 0, "", nil, or false.
// It cannot do better without type information.
func IsZeroExpr(expr ast.Expr) bool {
switch e := expr.(type) {
case *ast.BasicLit:
return e.Value == "0" || e.Value == `""`
case *ast.Ident:
return e.Name == "nil" || e.Name == "false"
default:
return false
}
}
// TypeExpr returns syntax for the specified type. References to named types
// are qualified by an appropriate (optional) qualifier function.
// It may panic for types such as Tuple or Union.
func TypeExpr(t types.Type, qual types.Qualifier) ast.Expr {
switch t := t.(type) {
case *types.Basic:
switch t.Kind() {
case types.UnsafePointer:
return &ast.SelectorExpr{X: ast.NewIdent(qual(types.NewPackage("unsafe", "unsafe"))), Sel: ast.NewIdent("Pointer")}
default:
return ast.NewIdent(t.Name())
}
case *types.Pointer:
return &ast.UnaryExpr{
Op: token.MUL,
X: TypeExpr(t.Elem(), qual),
}
case *types.Array:
return &ast.ArrayType{
Len: &ast.BasicLit{
Kind: token.INT,
Value: fmt.Sprintf("%d", t.Len()),
},
Elt: TypeExpr(t.Elem(), qual),
}
case *types.Slice:
return &ast.ArrayType{
Elt: TypeExpr(t.Elem(), qual),
}
case *types.Map:
return &ast.MapType{
Key: TypeExpr(t.Key(), qual),
Value: TypeExpr(t.Elem(), qual),
}
case *types.Chan:
dir := ast.ChanDir(t.Dir())
if t.Dir() == types.SendRecv {
dir = ast.SEND | ast.RECV
}
return &ast.ChanType{
Dir: dir,
Value: TypeExpr(t.Elem(), qual),
}
case *types.Signature:
var params []*ast.Field
for i := 0; i < t.Params().Len(); i++ {
params = append(params, &ast.Field{
Type: TypeExpr(t.Params().At(i).Type(), qual),
Names: []*ast.Ident{
{
Name: t.Params().At(i).Name(),
},
},
})
}
if t.Variadic() {
last := params[len(params)-1]
last.Type = &ast.Ellipsis{Elt: last.Type.(*ast.ArrayType).Elt}
}
var returns []*ast.Field
for i := 0; i < t.Results().Len(); i++ {
returns = append(returns, &ast.Field{
Type: TypeExpr(t.Results().At(i).Type(), qual),
})
}
return &ast.FuncType{
Params: &ast.FieldList{
List: params,
},
Results: &ast.FieldList{
List: returns,
},
}
case *types.TypeParam:
pkgName := qual(t.Obj().Pkg())
if pkgName == "" || t.Obj().Pkg() == nil {
return ast.NewIdent(t.Obj().Name())
}
return &ast.SelectorExpr{
X: ast.NewIdent(pkgName),
Sel: ast.NewIdent(t.Obj().Name()),
}
// types.TypeParam also implements interface NamedOrAlias. To differentiate,
// case TypeParam need to be present before case NamedOrAlias.
// TODO(hxjiang): remove this comment once TypeArgs() is added to interface
// NamedOrAlias.
case NamedOrAlias:
var expr ast.Expr = ast.NewIdent(t.Obj().Name())
if pkgName := qual(t.Obj().Pkg()); pkgName != "." && pkgName != "" {
expr = &ast.SelectorExpr{
X: ast.NewIdent(pkgName),
Sel: expr.(*ast.Ident),
}
}
// TODO(hxjiang): call t.TypeArgs after adding method TypeArgs() to
// typesinternal.NamedOrAlias.
if hasTypeArgs, ok := t.(interface{ TypeArgs() *types.TypeList }); ok {
if typeArgs := hasTypeArgs.TypeArgs(); typeArgs != nil && typeArgs.Len() > 0 {
var indices []ast.Expr
for i := range typeArgs.Len() {
indices = append(indices, TypeExpr(typeArgs.At(i), qual))
}
expr = &ast.IndexListExpr{
X: expr,
Indices: indices,
}
}
}
return expr
case *types.Struct:
return ast.NewIdent(t.String())
case *types.Interface:
return ast.NewIdent(t.String())
case *types.Union:
if t.Len() == 0 {
panic("Union type should have at least one term")
}
// Same as go/ast, the return expression will put last term in the
// Y field at topmost level of BinaryExpr.
// For union of type "float32 | float64 | int64", the structure looks
// similar to:
// {
// X: {
// X: float32,
// Op: |
// Y: float64,
// }
// Op: |,
// Y: int64,
// }
var union ast.Expr
for i := range t.Len() {
term := t.Term(i)
termExpr := TypeExpr(term.Type(), qual)
if term.Tilde() {
termExpr = &ast.UnaryExpr{
Op: token.TILDE,
X: termExpr,
}
}
if i == 0 {
union = termExpr
} else {
union = &ast.BinaryExpr{
X: union,
Op: token.OR,
Y: termExpr,
}
}
}
return union
case *types.Tuple:
panic("invalid input type types.Tuple")
default:
panic("unreachable")
}
}
vendor/golang.org/x/tools/internal/versions/features.go
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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package versions
// This file contains predicates for working with file versions to
// decide when a tool should consider a language feature enabled.
// GoVersions that features in x/tools can be gated to.
const (
Go1_18 = "go1.18"
Go1_19 = "go1.19"
Go1_20 = "go1.20"
Go1_21 = "go1.21"
Go1_22 = "go1.22"
)
// Future is an invalid unknown Go version sometime in the future.
// Do not use directly with Compare.
const Future = ""
// AtLeast reports whether the file version v comes after a Go release.
//
// Use this predicate to enable a behavior once a certain Go release
// has happened (and stays enabled in the future).
func AtLeast(v, release string) bool {
if v == Future {
return true // an unknown future version is always after y.
}
return Compare(Lang(v), Lang(release)) >= 0
}
// Before reports whether the file version v is strictly before a Go release.
//
// Use this predicate to disable a behavior once a certain Go release
// has happened (and stays enabled in the future).
func Before(v, release string) bool {
if v == Future {
return false // an unknown future version happens after y.
}
return Compare(Lang(v), Lang(release)) < 0
}
vendor/golang.org/x/tools/internal/versions/gover.go
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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This is a fork of internal/gover for use by x/tools until
// go1.21 and earlier are no longer supported by x/tools.
package versions
import "strings"
// A gover is a parsed Go gover: major[.Minor[.Patch]][kind[pre]]
// The numbers are the original decimal strings to avoid integer overflows
// and since there is very little actual math. (Probably overflow doesn't matter in practice,
// but at the time this code was written, there was an existing test that used
// go1.99999999999, which does not fit in an int on 32-bit platforms.
// The "big decimal" representation avoids the problem entirely.)
type gover struct {
major string // decimal
minor string // decimal or ""
patch string // decimal or ""
kind string // "", "alpha", "beta", "rc"
pre string // decimal or ""
}
// compare returns -1, 0, or +1 depending on whether
// x < y, x == y, or x > y, interpreted as toolchain versions.
// The versions x and y must not begin with a "go" prefix: just "1.21" not "go1.21".
// Malformed versions compare less than well-formed versions and equal to each other.
// The language version "1.21" compares less than the release candidate and eventual releases "1.21rc1" and "1.21.0".
func compare(x, y string) int {
vx := parse(x)
vy := parse(y)
if c := cmpInt(vx.major, vy.major); c != 0 {
return c
}
if c := cmpInt(vx.minor, vy.minor); c != 0 {
return c
}
if c := cmpInt(vx.patch, vy.patch); c != 0 {
return c
}
if c := strings.Compare(vx.kind, vy.kind); c != 0 { // "" < alpha < beta < rc
return c
}
if c := cmpInt(vx.pre, vy.pre); c != 0 {
return c
}
return 0
}
// lang returns the Go language version. For example, lang("1.2.3") == "1.2".
func lang(x string) string {
v := parse(x)
if v.minor == "" || v.major == "1" && v.minor == "0" {
return v.major
}
return v.major + "." + v.minor
}
// isValid reports whether the version x is valid.
func isValid(x string) bool {
return parse(x) != gover{}
}
// parse parses the Go version string x into a version.
// It returns the zero version if x is malformed.
func parse(x string) gover {
var v gover
// Parse major version.
var ok bool
v.major, x, ok = cutInt(x)
if !ok {
return gover{}
}
if x == "" {
// Interpret "1" as "1.0.0".
v.minor = "0"
v.patch = "0"
return v
}
// Parse . before minor version.
if x[0] != '.' {
return gover{}
}
// Parse minor version.
v.minor, x, ok = cutInt(x[1:])
if !ok {
return gover{}
}
if x == "" {
// Patch missing is same as "0" for older versions.
// Starting in Go 1.21, patch missing is different from explicit .0.
if cmpInt(v.minor, "21") < 0 {
v.patch = "0"
}
return v
}
// Parse patch if present.
if x[0] == '.' {
v.patch, x, ok = cutInt(x[1:])
if !ok || x != "" {
// Note that we are disallowing prereleases (alpha, beta, rc) for patch releases here (x != "").
// Allowing them would be a bit confusing because we already have:
// 1.21 < 1.21rc1
// But a prerelease of a patch would have the opposite effect:
// 1.21.3rc1 < 1.21.3
// We've never needed them before, so let's not start now.
return gover{}
}
return v
}
// Parse prerelease.
i := 0
for i < len(x) && (x[i] < '0' || '9' < x[i]) {
if x[i] < 'a' || 'z' < x[i] {
return gover{}
}
i++
}
if i == 0 {
return gover{}
}
v.kind, x = x[:i], x[i:]
if x == "" {
return v
}
v.pre, x, ok = cutInt(x)
if !ok || x != "" {
return gover{}
}
return v
}
// cutInt scans the leading decimal number at the start of x to an integer
// and returns that value and the rest of the string.
func cutInt(x string) (n, rest string, ok bool) {
i := 0
for i < len(x) && '0' <= x[i] && x[i] <= '9' {
i++
}
if i == 0 || x[0] == '0' && i != 1 { // no digits or unnecessary leading zero
return "", "", false
}
return x[:i], x[i:], true
}
// cmpInt returns cmp.Compare(x, y) interpreting x and y as decimal numbers.
// (Copied from golang.org/x/mod/semver's compareInt.)
func cmpInt(x, y string) int {
if x == y {
return 0
}
if len(x) < len(y) {
return -1
}
if len(x) > len(y) {
return +1
}
if x < y {
return -1
} else {
return +1
}
}
vendor/golang.org/x/tools/internal/versions/types.go
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// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package versions
import (
"go/ast"
"go/types"
)
// FileVersion returns a file's Go version.
// The reported version is an unknown Future version if a
// version cannot be determined.
func FileVersion(info *types.Info, file *ast.File) string {
// In tools built with Go >= 1.22, the Go version of a file
// follow a cascades of sources:
// 1) types.Info.FileVersion, which follows the cascade:
// 1.a) file version (ast.File.GoVersion),
// 1.b) the package version (types.Config.GoVersion), or
// 2) is some unknown Future version.
//
// File versions require a valid package version to be provided to types
// in Config.GoVersion. Config.GoVersion is either from the package's module
// or the toolchain (go run). This value should be provided by go/packages
// or unitchecker.Config.GoVersion.
if v := info.FileVersions[file]; IsValid(v) {
return v
}
// Note: we could instead return runtime.Version() [if valid].
// This would act as a max version on what a tool can support.
return Future
}
vendor/golang.org/x/tools/internal/versions/versions.go
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@@ -0,0 +1,57 @@
// Copyright 2023 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package versions
import (
"strings"
)
// Note: If we use build tags to use go/versions when go >=1.22,
// we run into go.dev/issue/53737. Under some operations users would see an
// import of "go/versions" even if they would not compile the file.
// For example, during `go get -u ./...` (go.dev/issue/64490) we do not try to include
// For this reason, this library just a clone of go/versions for the moment.
// Lang returns the Go language version for version x.
// If x is not a valid version, Lang returns the empty string.
// For example:
//
// Lang("go1.21rc2") = "go1.21"
// Lang("go1.21.2") = "go1.21"
// Lang("go1.21") = "go1.21"
// Lang("go1") = "go1"
// Lang("bad") = ""
// Lang("1.21") = ""
func Lang(x string) string {
v := lang(stripGo(x))
if v == "" {
return ""
}
return x[:2+len(v)] // "go"+v without allocation
}
// Compare returns -1, 0, or +1 depending on whether
// x < y, x == y, or x > y, interpreted as Go versions.
// The versions x and y must begin with a "go" prefix: "go1.21" not "1.21".
// Invalid versions, including the empty string, compare less than
// valid versions and equal to each other.
// The language version "go1.21" compares less than the
// release candidate and eventual releases "go1.21rc1" and "go1.21.0".
// Custom toolchain suffixes are ignored during comparison:
// "go1.21.0" and "go1.21.0-bigcorp" are equal.
func Compare(x, y string) int { return compare(stripGo(x), stripGo(y)) }
// IsValid reports whether the version x is valid.
func IsValid(x string) bool { return isValid(stripGo(x)) }
// stripGo converts from a "go1.21" version to a "1.21" version.
// If v does not start with "go", stripGo returns the empty string (a known invalid version).
func stripGo(v string) string {
v, _, _ = strings.Cut(v, "-") // strip -bigcorp suffix.
if len(v) < 2 || v[:2] != "go" {
return ""
}
return v[2:]
}
vendor/modules.txt
Vendored
+19 -1
View File
@@ -480,7 +480,7 @@ github.com/nxadm/tail/ratelimiter
github.com/nxadm/tail/util
github.com/nxadm/tail/watch
github.com/nxadm/tail/winfile
# github.com/onsi/ginkgo/v2 v2.25.3
# github.com/onsi/ginkgo/v2 v2.26.0
## explicit; go 1.23.0
github.com/onsi/ginkgo/v2
github.com/onsi/ginkgo/v2/config
@@ -499,6 +499,7 @@ github.com/onsi/ginkgo/v2/internal
github.com/onsi/ginkgo/v2/internal/global
github.com/onsi/ginkgo/v2/internal/interrupt_handler
github.com/onsi/ginkgo/v2/internal/parallel_support
github.com/onsi/ginkgo/v2/internal/reporters
github.com/onsi/ginkgo/v2/internal/testingtproxy
github.com/onsi/ginkgo/v2/reporters
github.com/onsi/ginkgo/v2/types
@@ -1043,6 +1044,23 @@ golang.org/x/time/rate
golang.org/x/tools/cover
golang.org/x/tools/go/ast/edge
golang.org/x/tools/go/ast/inspector
golang.org/x/tools/go/gcexportdata
golang.org/x/tools/go/packages
golang.org/x/tools/go/types/objectpath
golang.org/x/tools/go/types/typeutil
golang.org/x/tools/internal/aliases
golang.org/x/tools/internal/event
golang.org/x/tools/internal/event/core
golang.org/x/tools/internal/event/keys
golang.org/x/tools/internal/event/label
golang.org/x/tools/internal/gcimporter
golang.org/x/tools/internal/gocommand
golang.org/x/tools/internal/packagesinternal
golang.org/x/tools/internal/pkgbits
golang.org/x/tools/internal/stdlib
golang.org/x/tools/internal/typeparams
golang.org/x/tools/internal/typesinternal
golang.org/x/tools/internal/versions
# google.golang.org/genproto/googleapis/api v0.0.0-20250414145226-207652e42e2e
## explicit; go 1.23.0
google.golang.org/genproto/googleapis/api