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Source file test/fixedbugs/issue19799.go

Documentation: test/fixedbugs

  // run
  
  // Copyright 2017 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.
  
  package main
  
  import (
  	"os"
  	"runtime"
  )
  
  func foo(x int) int {
  	return x + 1
  }
  
  func test() {
  	defer func() {
  		if r := recover(); r != nil {
  			pcs := make([]uintptr, 10)
  			n := runtime.Callers(0, pcs)
  			pcs = pcs[:n]
  			frames := runtime.CallersFrames(pcs)
  			for {
  				f, more := frames.Next()
  				if f.Function == "main.foo" {
  					println("did not expect to see call to foo in stack trace")
  					os.Exit(1)
  				}
  				if !more {
  					break
  				}
  			}
  		}
  	}()
  	var v []int
  	foo(v[0])
  }
  
  func bar(x ...int) int {
  	return x[0] + 1
  }
  
  func testVariadic() {
  	defer func() {
  		if r := recover(); r != nil {
  			pcs := make([]uintptr, 10)
  			n := runtime.Callers(0, pcs)
  			pcs = pcs[:n]
  			frames := runtime.CallersFrames(pcs)
  			for {
  				f, more := frames.Next()
  				if f.Function == "main.bar" {
  					println("did not expect to see call to bar in stack trace")
  					os.Exit(1)
  				}
  				if !more {
  					break
  				}
  			}
  		}
  	}()
  	var v []int
  	bar(v[0])
  }
  
  func main() {
  	test()
  	testVariadic()
  }
  

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