From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgo/go/gob/error.go | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 libgo/go/gob/error.go (limited to 'libgo/go/gob/error.go') diff --git a/libgo/go/gob/error.go b/libgo/go/gob/error.go new file mode 100644 index 000000000..b053761fb --- /dev/null +++ b/libgo/go/gob/error.go @@ -0,0 +1,41 @@ +// Copyright 2009 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 gob + +import ( + "fmt" + "os" +) + +// Errors in decoding and encoding are handled using panic and recover. +// Panics caused by user error (that is, everything except run-time panics +// such as "index out of bounds" errors) do not leave the file that caused +// them, but are instead turned into plain os.Error returns. Encoding and +// decoding functions and methods that do not return an os.Error either use +// panic to report an error or are guaranteed error-free. + +// A gobError wraps an os.Error and is used to distinguish errors (panics) generated in this package. +type gobError struct { + os.Error +} + +// errorf is like error but takes Printf-style arguments to construct an os.Error. +func errorf(format string, args ...interface{}) { + error(fmt.Errorf(format, args...)) +} + +// error wraps the argument error and uses it as the argument to panic. +func error(err os.Error) { + panic(gobError{Error: err}) +} + +// catchError is meant to be used as a deferred function to turn a panic(gobError) into a +// plain os.Error. It overwrites the error return of the function that deferred its call. +func catchError(err *os.Error) { + if e := recover(); e != nil { + *err = e.(gobError).Error // Will re-panic if not one of our errors, such as a runtime error. + } + return +} -- cgit v1.2.3