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// run
// 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.
// The Go 1.18 frontend failed to disambiguate instantiations of
// different, locally defined generic types with the same name.
//
// The unified frontend also exposed the scope-disambiguation mangling
// to end users in reflect data.
package main
import (
"reflect"
)
func one() any { type T[_ any] int; return T[int](0) }
func two() any { type T[_ any] int; return T[int](0) }
func main() {
p, q := one(), two()
// p and q have different dynamic types; this comparison should
// evaluate false.
if p == q {
panic("bad type identity")
}
for _, x := range []any{p, q} {
// The names here should not contain "·1" or "·2".
if name := reflect.TypeOf(x).String(); name != "main.T[int]" {
panic(name)
}
}
}
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