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master
test/fixedbugs/issue25897a.go
51 строка
1 KB
Austin Clements
runtime: drop function context from traceback
02 сен 2022, 22:04
02 сен 2022, 22:04
8be94b8
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// run // 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. // Make sure the runtime can scan args of an unstarted goroutine // which starts with a reflect-generated function. package main import ( "reflect" "runtime" ) const N = 100 func main() { runtime.GOMAXPROCS(1) // Run GC in a loop. This makes it more likely GC will catch // an unstarted goroutine then if we were to GC after kicking // everything off. go func() { for { runtime.GC() } }() c := make(chan bool, N) for i := 0; i < N; i++ { // Test both with an argument and without because this // affects whether the compiler needs to generate a // wrapper closure for the "go" statement. f := reflect.MakeFunc(reflect.TypeOf(((func(*int))(nil))), func(args []reflect.Value) []reflect.Value { c <- true return nil }).Interface().(func(*int)) go f(nil) g := reflect.MakeFunc(reflect.TypeOf(((func())(nil))), func(args []reflect.Value) []reflect.Value { c <- true return nil }).Interface().(func()) go g() } for i := 0; i < N*2; i++ { <-c } }