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1391d4142c
fix typo in issue16760.go, unconditinally -> unconditionally
Change-Id: I3a04fbcb23395c562821b35bc2d81cfaec0bc1ed
GitHub-Last-Rev: 5ce52a3deb
GitHub-Pull-Request: golang/go#44495
Reviewed-on: https://go-review.googlesource.com/c/go/+/294969
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: zhengjianxun <zhuimengshaonian04@gmail.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
43 lines
796 B
Go
43 lines
796 B
Go
// run
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// Copyright 2016 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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// Make sure we don't start marshaling (writing to the stack)
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// arguments until those arguments are evaluated and known
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// not to unconditionally panic. If they unconditionally panic,
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// we write some args but never do the call. That messes up
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// the logic which decides how big the argout section needs to be.
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package main
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type W interface {
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Write([]byte)
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}
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type F func(W)
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func foo(f F) {
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defer func() {
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if r := recover(); r != nil {
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usestack(1000)
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}
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}()
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f(nil)
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}
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func main() {
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foo(func(w W) {
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var x []string
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w.Write([]byte(x[5]))
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})
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}
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func usestack(n int) {
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if n == 0 {
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return
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}
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usestack(n - 1)
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}
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