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https://github.com/golang/go
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e3c684777a
The general policy for the current state of js/wasm is that it only has to support tests that are also supported by nacl. The test nilptr3.go makes assumptions about which nil checks can be removed. Since WebAssembly does not signal on reading a null pointer, all nil checks have to be explicit. Updates #18892 Change-Id: I06a687860b8d22ae26b1c391499c0f5183e4c485 Reviewed-on: https://go-review.googlesource.com/110096 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
// +build !nacl,!js,!android,!darwin darwin,!arm
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// 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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package main
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import (
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"bytes"
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"log"
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"os/exec"
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"strings"
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)
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func main() {
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checkLinkOutput("", "-B argument must start with 0x")
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checkLinkOutput("0", "-B argument must start with 0x")
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checkLinkOutput("0x", "usage")
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checkLinkOutput("0x0", "-B argument must have even number of digits")
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checkLinkOutput("0x00", "usage")
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checkLinkOutput("0xYZ", "-B argument contains invalid hex digit")
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checkLinkOutput("0x"+strings.Repeat("00", 32), "usage")
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checkLinkOutput("0x"+strings.Repeat("00", 33), "-B option too long (max 32 digits)")
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}
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func checkLinkOutput(buildid string, message string) {
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cmd := exec.Command("go", "tool", "link", "-B", buildid)
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out, err := cmd.CombinedOutput()
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if err == nil {
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log.Fatalf("expected cmd/link to fail")
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}
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firstLine := string(bytes.SplitN(out, []byte("\n"), 2)[0])
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if strings.HasPrefix(firstLine, "panic") {
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log.Fatalf("cmd/link panicked:\n%s", out)
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}
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if !strings.Contains(firstLine, message) {
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log.Fatalf("cmd/link output did not include expected message %q: %s", message, firstLine)
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}
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}
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