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Casting a polymorphic procedure to `rawptr`, or to a procedure type it cannot be specialized to, was accepted. There is no procedure to take the address of, so the value came out nil, or the build hung, as with `x := rawptr(avl.init_cmp)`. Assigning one to `rawptr` already errors; make `cast` and `transmute` match. Casting to a procedure type that specializes it still works, as assignment does.
21 lines
660 B
Odin
21 lines
660 B
Odin
// A polymorphic procedure has no value until it is specialized. Casting or transmuting one
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// was accepted and then hung the build or produced nil; each must be an error.
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package test_issues
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import "core:container/avl"
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poly :: proc(a: $T) -> T { return a }
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global := rawptr(avl.init_cmp) // error
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main :: proc() {
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a := rawptr(poly) // error
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b := cast(proc(string, int))poly // error
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c := transmute(rawptr)poly // error
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// casting to a procedure type it can be specialized to still works
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d := cast(proc(int) -> int)poly
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_, _, _, _, _ = global, a, b, c, d
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}
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