mirror of
https://github.com/golang/go
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61 lines
1.2 KiB
Go
61 lines
1.2 KiB
Go
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// run
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// Copyright 2023 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Some derived-type expressions require the compiler to synthesize
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// function literals to plumb sub-dictionaries appropriately.
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// However, when these expressions are inlined, we were constructing
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// the function literal bodies with the inline-adjusted positions
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// instead of the original (inline-free) positions, which could lead
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// to infinite loops when unwinding the stack.
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package main
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import "runtime"
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func assert[_ any]() {
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panic(0)
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}
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func Assert[To any]() func() {
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return assert[To]
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}
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type asserter[_ any] struct{}
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func (asserter[_]) assert() {
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panic(0)
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}
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func AssertMV[To any]() func() {
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return asserter[To]{}.assert
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}
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func AssertME[To any]() func(asserter[To]) {
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return asserter[To].assert
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}
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var me = AssertME[string]()
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var tests = []func(){
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Assert[int](),
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AssertMV[int](),
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func() { me(asserter[string]{}) },
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}
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func main() {
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for _, test := range tests {
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func() {
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defer func() {
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recover()
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// Check that we can unwind the stack without infinite looping.
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runtime.Caller(1000)
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}()
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test()
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}()
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}
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}
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