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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2010-12-03 04:34:57 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2010-12-03 04:34:57 +0000 |
| commit | 7a9389330e91acc3ed05deac2d198af25d13cf3c (patch) | |
| tree | 38fe54a4f38ede5d949c915d66191f24a6fe5153 /libgo/go/gob/error.go | |
| parent | 1aa6700378e5188a853c018256113ce6e1fb5c05 (diff) | |
| download | gcc-7a9389330e91acc3ed05deac2d198af25d13cf3c.zip gcc-7a9389330e91acc3ed05deac2d198af25d13cf3c.tar.gz gcc-7a9389330e91acc3ed05deac2d198af25d13cf3c.tar.bz2 | |
Add Go frontend, libgo library, and Go testsuite.
gcc/:
* gcc.c (default_compilers): Add entry for ".go".
* common.opt: Add -static-libgo as a driver option.
* doc/install.texi (Configuration): Mention libgo as an option for
--enable-shared. Mention go as an option for --enable-languages.
* doc/invoke.texi (Overall Options): Mention .go as a file name
suffix. Mention go as a -x option.
* doc/frontends.texi (G++ and GCC): Mention Go as a supported
language.
* doc/sourcebuild.texi (Top Level): Mention libgo.
* doc/standards.texi (Standards): Add section on Go language.
Move references for other languages into their own section.
* doc/contrib.texi (Contributors): Mention that I contributed the
Go frontend.
gcc/testsuite/:
* lib/go.exp: New file.
* lib/go-dg.exp: New file.
* lib/go-torture.exp: New file.
* lib/target-supports.exp (check_compile): Match // Go.
From-SVN: r167407
Diffstat (limited to 'libgo/go/gob/error.go')
| -rw-r--r-- | libgo/go/gob/error.go | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libgo/go/gob/error.go b/libgo/go/gob/error.go new file mode 100644 index 0000000..b053761 --- /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 +} |