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7b916243d9
The name change init -> init.ializers was initially required for initialization code. With CL 161337 there's no wrapper code any more, there's a data structure instead (named .inittask). So we can go back to just plain init appearing in tracebacks. RELNOTE=yes Update #29919. Followon to CL 161337. Change-Id: I5a4a49d286df24b53b2baa193dfda482f3ea82a5 Reviewed-on: https://go-review.googlesource.com/c/go/+/167780 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
// Copyright 2019 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 tracebacks from initialization code are reported correctly.
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package a
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import (
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"fmt"
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"runtime"
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"strings"
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)
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var x = f() // line 15
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func f() int {
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var b [4096]byte
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n := runtime.Stack(b[:], false) // line 19
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s := string(b[:n])
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var pcs [10]uintptr
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n = runtime.Callers(1, pcs[:]) // line 22
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// Check the Stack results.
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if debug {
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println(s)
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}
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if strings.Contains(s, "autogenerated") {
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panic("autogenerated code in traceback")
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}
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if !strings.Contains(s, "a.go:15") {
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panic("missing a.go:15")
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}
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if !strings.Contains(s, "a.go:19") {
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panic("missing a.go:19")
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}
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if !strings.Contains(s, "a.init") {
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panic("missing a.init")
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}
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// Check the CallersFrames results.
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if debug {
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iter := runtime.CallersFrames(pcs[:n])
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for {
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f, more := iter.Next()
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fmt.Printf("%s %s:%d\n", f.Function, f.File, f.Line)
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if !more {
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break
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}
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}
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}
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iter := runtime.CallersFrames(pcs[:n])
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f, more := iter.Next()
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if f.Function != "a.f" || !strings.HasSuffix(f.File, "a.go") || f.Line != 22 {
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panic(fmt.Sprintf("bad f %v\n", f))
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}
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if !more {
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panic("traceback truncated after f")
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}
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f, more = iter.Next()
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if f.Function != "a.init" || !strings.HasSuffix(f.File, "a.go") || f.Line != 15 {
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panic(fmt.Sprintf("bad init %v\n", f))
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}
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if !more {
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panic("traceback truncated after init")
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}
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f, _ = iter.Next()
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if !strings.HasPrefix(f.Function, "runtime.") {
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panic("runtime. driver missing")
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}
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return 0
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}
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const debug = false
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