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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:16:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-28 13:16:40 +0000
commit47ab3d4a42e9ab51c465c4322d2ec233f6324e6b (patch)
treea61a0ffd83f4a3def4b36e5c8e99630c559aa723 /src/encoding/gob/error.go
parentInitial commit. (diff)
downloadgolang-1.18-upstream.tar.xz
golang-1.18-upstream.zip
Adding upstream version 1.18.10.upstream/1.18.10upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/encoding/gob/error.go')
-rw-r--r--src/encoding/gob/error.go42
1 files changed, 42 insertions, 0 deletions
diff --git a/src/encoding/gob/error.go b/src/encoding/gob/error.go
new file mode 100644
index 0000000..3c9515b
--- /dev/null
+++ b/src/encoding/gob/error.go
@@ -0,0 +1,42 @@
+// 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"
+
+// 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 error returns. Encoding and
+// decoding functions and methods that do not return an error either use
+// panic to report an error or are guaranteed error-free.
+
+// A gobError is used to distinguish errors (panics) generated in this package.
+type gobError struct {
+ err error
+}
+
+// errorf is like error_ but takes Printf-style arguments to construct an error.
+// It always prefixes the message with "gob: ".
+func errorf(format string, args ...any) {
+ error_(fmt.Errorf("gob: "+format, args...))
+}
+
+// error wraps the argument error and uses it as the argument to panic.
+func error_(err error) {
+ panic(gobError{err})
+}
+
+// catchError is meant to be used as a deferred function to turn a panic(gobError) into a
+// plain error. It overwrites the error return of the function that deferred its call.
+func catchError(err *error) {
+ if e := recover(); e != nil {
+ ge, ok := e.(gobError)
+ if !ok {
+ panic(e)
+ }
+ *err = ge.err
+ }
+}