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// run
// 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.
// Some derived-type expressions require the compiler to synthesize
// function literals to plumb sub-dictionaries appropriately.
// However, when these expressions are inlined, we were constructing
// the function literal bodies with the inline-adjusted positions
// instead of the original (inline-free) positions, which could lead
// to infinite loops when unwinding the stack.
package main
import "runtime"
func assert[_ any]() {
panic(0)
}
func Assert[To any]() func() {
return assert[To]
}
type asserter[_ any] struct{}
func (asserter[_]) assert() {
panic(0)
}
func AssertMV[To any]() func() {
return asserter[To]{}.assert
}
func AssertME[To any]() func(asserter[To]) {
return asserter[To].assert
}
var me = AssertME[string]()
var tests = []func(){
Assert[int](),
AssertMV[int](),
func() { me(asserter[string]{}) },
}
func main() {
for _, test := range tests {
func() {
defer func() {
recover()
// Check that we can unwind the stack without infinite looping.
runtime.Caller(1000)
}()
test()
}()
}
}
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