libgo: Update to weekly.2012-01-20.

From-SVN: r183540

7 files changed, 52 insertions, 8 deletions

diff --git a/libgo/go/encoding/gob/debug.go b/libgo/go/encoding/gob/debug.go
index b21c7fa..4a61d0f 100644
--- a/libgo/go/encoding/gob/debug.go
+++ b/libgo/go/encoding/gob/debug.go
@@ -1,3 +1,7 @@
+// 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
 
 // This file is not normally included in the gob package.  Used only for debugging the package itself.
diff --git a/libgo/go/encoding/gob/dump.go b/libgo/go/encoding/gob/dump.go
index 0d0017c..f7d822c 100644
--- a/libgo/go/encoding/gob/dump.go
+++ b/libgo/go/encoding/gob/dump.go
@@ -1,3 +1,7 @@
+// 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 main
 
 // Need to compile package gob with debug.go to build this program.
diff --git a/libgo/go/encoding/json/encode.go b/libgo/go/encoding/json/encode.go
index 033da2d..eac14a4 100644
--- a/libgo/go/encoding/json/encode.go
+++ b/libgo/go/encoding/json/encode.go
@@ -39,6 +39,8 @@ import (
 //
 // String values encode as JSON strings, with each invalid UTF-8 sequence
 // replaced by the encoding of the Unicode replacement character U+FFFD.
+// The angle brackets "<" and ">" are escaped to "\u003c" and "\u003e"
+// to keep some browsers from misinterpreting JSON output as HTML.
 //
 // Array and slice values encode as JSON arrays, except that
 // []byte encodes as a base64-encoded string.
@@ -77,7 +79,8 @@ import (
 //    Int64String int64 `json:",string"`
 //
 // The key name will be used if it's a non-empty string consisting of
-// only Unicode letters, digits, dollar signs, hyphens, and underscores.
+// only Unicode letters, digits, dollar signs, percent signs, hyphens,
+// underscores and slashes.
 //
 // Map values encode as JSON objects.
 // The map's key type must be string; the object keys are used directly
@@ -417,8 +420,13 @@ func isValidTag(s string) bool {
 		return false
 	}
 	for _, c := range s {
-		if c != '$' && c != '-' && c != '_' && !unicode.IsLetter(c) && !unicode.IsDigit(c) {
-			return false
+		switch c {
+		case '$', '-', '_', '/', '%':
+			// Acceptable
+		default:
+			if !unicode.IsLetter(c) && !unicode.IsDigit(c) {
+				return false
+			}
 		}
 	}
 	return true
diff --git a/libgo/go/encoding/json/tagkey_test.go b/libgo/go/encoding/json/tagkey_test.go
index 31fe2be..bba5730 100644
--- a/libgo/go/encoding/json/tagkey_test.go
+++ b/libgo/go/encoding/json/tagkey_test.go
@@ -9,7 +9,7 @@ import (
 )
 
 type basicLatin2xTag struct {
-	V string `json:"$-"`
+	V string `json:"$%-/"`
 }
 
 type basicLatin3xTag struct {
@@ -36,6 +36,10 @@ type miscPlaneTag struct {
 	V string `json:"色は匂へど"`
 }
 
+type percentSlashTag struct {
+	V string `json:"text/html%"` // http://golang.org/issue/2718
+}
+
 type emptyTag struct {
 	W string
 }
@@ -49,7 +53,7 @@ type badFormatTag struct {
 }
 
 type badCodeTag struct {
-	Z string `json:" !\"#%&'()*+,./"`
+	Z string `json:" !\"#&'()*+,."`
 }
 
 var structTagObjectKeyTests = []struct {
@@ -57,7 +61,7 @@ var structTagObjectKeyTests = []struct {
 	value string
 	key   string
 }{
-	{basicLatin2xTag{"2x"}, "2x", "$-"},
+	{basicLatin2xTag{"2x"}, "2x", "$%-/"},
 	{basicLatin3xTag{"3x"}, "3x", "0123456789"},
 	{basicLatin4xTag{"4x"}, "4x", "ABCDEFGHIJKLMO"},
 	{basicLatin5xTag{"5x"}, "5x", "PQRSTUVWXYZ_"},
@@ -68,6 +72,7 @@ var structTagObjectKeyTests = []struct {
 	{misnamedTag{"Animal Kingdom"}, "Animal Kingdom", "X"},
 	{badFormatTag{"Orfevre"}, "Orfevre", "Y"},
 	{badCodeTag{"Reliable Man"}, "Reliable Man", "Z"},
+	{percentSlashTag{"brut"}, "brut", "text/html%"},
 }
 
 func TestStructTagObjectKey(t *testing.T) {
@@ -88,7 +93,7 @@ func TestStructTagObjectKey(t *testing.T) {
 					t.Fatalf("Unexpected value: %#q, want %v", s, tt.value)
 				}
 			default:
-				t.Fatalf("Unexpected key: %#q", i)
+				t.Fatalf("Unexpected key: %#q, from %#q", i, b)
 			}
 		}
 	}
diff --git a/libgo/go/encoding/xml/marshal_test.go b/libgo/go/encoding/xml/marshal_test.go
index bec5376..f23b2cb 100644
--- a/libgo/go/encoding/xml/marshal_test.go
+++ b/libgo/go/encoding/xml/marshal_test.go
@@ -150,6 +150,10 @@ type XMLNameWithoutTag struct {
 	Value   string ",chardata"
 }
 
+type NameInField struct {
+	Foo Name `xml:"ns foo"`
+}
+
 type AttrTest struct {
 	Int   int     `xml:",attr"`
 	Lower int     `xml:"int,attr"`
@@ -483,6 +487,19 @@ var marshalTests = []struct {
 		UnmarshalOnly: true,
 	},
 
+	// xml.Name works in a plain field as well.
+	{
+		Value:     &NameInField{Name{Space: "ns", Local: "foo"}},
+		ExpectXML: `<NameInField><foo xmlns="ns"></foo></NameInField>`,
+	},
+
+	// Marshaling zero xml.Name uses the tag or field name.
+	{
+		Value:       &NameInField{},
+		ExpectXML:   `<NameInField><foo xmlns="ns"></foo></NameInField>`,
+		MarshalOnly: true,
+	},
+
 	// Test attributes
 	{
 		Value: &AttrTest{
diff --git a/libgo/go/encoding/xml/read.go b/libgo/go/encoding/xml/read.go
index dde68de..4419ed1 100644
--- a/libgo/go/encoding/xml/read.go
+++ b/libgo/go/encoding/xml/read.go
@@ -271,6 +271,10 @@ func (p *Parser) unmarshal(val reflect.Value, start *StartElement) error {
 	case reflect.Struct:
 		sv = v
 		typ := sv.Type()
+		if typ == nameType {
+			v.Set(reflect.ValueOf(start.Name))
+			break
+		}
 		tinfo, err = getTypeInfo(typ)
 		if err != nil {
 			return err
diff --git a/libgo/go/encoding/xml/typeinfo.go b/libgo/go/encoding/xml/typeinfo.go
index 8f79c4e..36b35ed 100644
--- a/libgo/go/encoding/xml/typeinfo.go
+++ b/libgo/go/encoding/xml/typeinfo.go
@@ -46,6 +46,8 @@ const (
 var tinfoMap = make(map[reflect.Type]*typeInfo)
 var tinfoLock sync.RWMutex
 
+var nameType = reflect.TypeOf(Name{})
+
 // getTypeInfo returns the typeInfo structure with details necessary
 // for marshalling and unmarshalling typ.
 func getTypeInfo(typ reflect.Type) (*typeInfo, error) {
@@ -56,7 +58,7 @@ func getTypeInfo(typ reflect.Type) (*typeInfo, error) {
 		return tinfo, nil
 	}
 	tinfo = &typeInfo{}
-	if typ.Kind() == reflect.Struct {
+	if typ.Kind() == reflect.Struct && typ != nameType {
 		n := typ.NumField()
 		for i := 0; i < n; i++ {
 			f := typ.Field(i)