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go/test/fixedbugs/issue24488.go
Keith Randall af134b17da runtime: proper panic tracebacks with mid-stack inlining
As a followon to CL 152537, modify the panic-printing traceback
to also handle mid-stack inlining correctly.

Also declare -fm functions (aka method functions) as wrappers, so that
they get elided during traceback. This fixes part 2 of #26839.

Fixes #28640
Fixes #24488
Update #26839

Change-Id: I1c535a9b87a9a1ea699621be1e6526877b696c21
Reviewed-on: https://go-review.googlesource.com/c/153477
Reviewed-by: David Chase <drchase@google.com>
2019-01-04 00:00:24 +00:00

39 lines
563 B
Go

// run
// Copyright 2018 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 (
"runtime"
"strings"
)
type Func func()
func (f Func) Foo() {
if f != nil {
f()
}
}
func (f Func) Bar() {
if f != nil {
f()
}
buf := make([]byte, 4000)
n := runtime.Stack(buf, true)
s := string(buf[:n])
if strings.Contains(s, "-fm") {
panic("wrapper present in stack trace:\n" + s)
}
}
func main() {
foo := Func(func() {})
foo = foo.Bar
foo.Foo()
}