gcc/libgo/go/os/error_plan9.go
Ian Lance Taylor c2047754c3 libgo: update to Go 1.8 release candidate 1
Compiler changes:
      * Change map assignment to use mapassign and assign value directly.
      * Change string iteration to use decoderune, faster for ASCII strings.
      * Change makeslice to take int, and use makeslice64 for larger values.
      * Add new noverflow field to hmap struct used for maps.
    
    Unresolved problems, to be fixed later:
      * Commented out test in go/types/sizes_test.go that doesn't compile.
      * Commented out reflect.TestStructOf test for padding after zero-sized field.
    
    Reviewed-on: https://go-review.googlesource.com/35231

gotools/:
	Updates for Go 1.8rc1.
	* Makefile.am (go_cmd_go_files): Add bug.go.
	(s-zdefaultcc): Write defaultPkgConfig.
	* Makefile.in: Rebuild.

From-SVN: r244456
2017-01-14 00:05:42 +00:00

45 lines
1.0 KiB
Go

// Copyright 2011 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 os
func isExist(err error) bool {
return checkErrMessageContent(err, " exists")
}
func isNotExist(err error) bool {
return checkErrMessageContent(err, "does not exist", "not found",
"has been removed", "no parent")
}
func isPermission(err error) bool {
return checkErrMessageContent(err, "permission denied")
}
// checkErrMessageContent checks if err message contains one of msgs.
func checkErrMessageContent(err error, msgs ...string) bool {
if err == nil {
return false
}
err = underlyingError(err)
for _, msg := range msgs {
if contains(err.Error(), msg) {
return true
}
}
return false
}
// contains is a local version of strings.Contains. It knows len(sep) > 1.
func contains(s, sep string) bool {
n := len(sep)
c := sep[0]
for i := 0; i+n <= len(s); i++ {
if s[i] == c && s[i:i+n] == sep {
return true
}
}
return false
}