issue16331.go

     1  // run
     2  
     3  // Copyright 2016 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  // Perform tracebackdefers with a deferred reflection method.
     8  
     9  package main
    10  
    11  import "reflect"
    12  
    13  type T struct{}
    14  
    15  func (T) M() {
    16  }
    17  
    18  func F(args []reflect.Value) (results []reflect.Value) {
    19  	return nil
    20  }
    21  
    22  func main() {
    23  	done := make(chan bool)
    24  	go func() {
    25  		// Test reflect.makeFuncStub.
    26  		t := reflect.TypeOf((func())(nil))
    27  		f := reflect.MakeFunc(t, F).Interface().(func())
    28  		defer f()
    29  		growstack(10000)
    30  		done <- true
    31  	}()
    32  	<-done
    33  	go func() {
    34  		// Test reflect.methodValueCall.
    35  		f := reflect.ValueOf(T{}).Method(0).Interface().(func())
    36  		defer f()
    37  		growstack(10000)
    38  		done <- true
    39  	}()
    40  	<-done
    41  }
    42  
    43  func growstack(x int) {
    44  	if x == 0 {
    45  		return
    46  	}
    47  	growstack(x - 1)
    48  }
    49
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