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f1778c28a9
Change the run.go driver to recognize the "gc" build tag. Change existing tests to use the "gc" build tag if they use some feature that seems specific to the gc compiler, such as passing specific options to or expecting specific behavior from "go tool compile". Change tests to use the "!gccgo" build tag if they use "go build" or "go run", as while those might work with compilers other than gc, they won't work with the way that gccgo runs its testsuite (which happens independently of the go command). For #43252 Change-Id: I666e04b6d7255a77dfc256ee304094e3a6bb15ad Reviewed-on: https://go-review.googlesource.com/c/go/+/279052 Trust: Ian Lance Taylor <iant@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
// run
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// +build !nacl,!js,gc
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// Copyright 2020 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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// Tests that when non-existent files are passed to the
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// compiler, such as in:
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// go tool compile foo
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// we don't print the beginning position:
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// foo:0: open foo: no such file or directory
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// but instead omit it and print out:
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// open foo: no such file or directory
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package main
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import (
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"regexp"
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)
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func main() {
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tmpDir, err := ioutil.TempDir("", "issue36437")
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if err != nil {
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panic(err)
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}
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defer os.RemoveAll(tmpDir)
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msgOrErr := func(msg []byte, err error) string {
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if len(msg) == 0 && err != nil {
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return err.Error()
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}
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return string(msg)
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}
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filename := "non-existent.go"
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output, err := exec.Command("go", "tool", "compile", filename).CombinedOutput()
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got := msgOrErr(output, err)
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regFilenamePos := regexp.MustCompile(filename + ":\\d+")
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if regFilenamePos.MatchString(got) {
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fmt.Printf("Error message must not contain filename:pos, but got:\n%q\n", got)
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}
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}
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