net/url: Rename ParseWithReference to ParseWithFragment.

Updates #2946.

R=golang-dev, r, r
CC=golang-dev
https://golang.org/cl/5671061

doc/go1.html

@@ -1779,6 +1779,10 @@ A new <a href="/pkg/net/url/#URL.RequestURI"><code>RequestURI</code></a> method
 added to <code>URL</code>.
 </p>
 
+<p>
+The <code>ParseWithReference</code> function has been renamed to <code>ParseWithFragment</code>.
+</p>
+
 <p>
 <em>Updating</em>:
 Code that uses the old fields will fail to compile and must be updated by hand.

doc/go1.tmpl

@@ -1669,6 +1669,10 @@ A new <a href="/pkg/net/url/#URL.RequestURI"><code>RequestURI</code></a> method
 added to <code>URL</code>.
 </p>
 
+<p>
+The <code>ParseWithReference</code> function has been renamed to <code>ParseWithFragment</code>.
+</p>
+
 <p>
 <em>Updating</em>:
 Code that uses the old fields will fail to compile and must be updated by hand.

src/cmd/fix/url2.go

@@ -0,0 +1,46 @@
+// 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 main
+
+import "go/ast"
+
+func init() {
+	register(url2Fix)
+}
+
+var url2Fix = fix{
+	"url2",
+	"2012-02-16",
+	url2,
+	`Rename some functions in net/url.
+
+http://codereview.appspot.com/5671061
+`,
+}
+
+func url2(f *ast.File) bool {
+	if !imports(f, "net/url") {
+		return false
+	}
+
+	fixed := false
+
+	walk(f, func(n interface{}) {
+		// Rename functions and methods.
+		sel, ok := n.(*ast.SelectorExpr)
+		if !ok {
+			return
+		}
+		if !isTopName(sel.X, "url") {
+			return
+		}
+		if sel.Sel.Name == "ParseWithReference" {
+			sel.Sel.Name = "ParseWithFragment"
+			fixed = true
+		}
+	})
+
+	return fixed
+}

src/cmd/fix/url2_test.go

@@ -0,0 +1,31 @@
+// 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 main
+
+func init() {
+	addTestCases(url2Tests, url2)
+}
+
+var url2Tests = []testCase{
+	{
+		Name: "url2.0",
+		In: `package main
+
+import "net/url"
+
+func f() {
+	url.ParseWithReference("foo")
+}
+`,
+		Out: `package main
+
+import "net/url"
+
+func f() {
+	url.ParseWithFragment("foo")
+}
+`,
+	},
+}

src/pkg/net/url/url.go

@@ -415,18 +415,18 @@ func parseAuthority(authority string) (user *Userinfo, host string, err error) {
 	return
 }
 
-// ParseWithReference is like Parse but allows a trailing #fragment.
-func ParseWithReference(rawurlref string) (url *URL, err error) {
+// ParseWithFragment is like Parse but allows a trailing #fragment.
+func ParseWithFragment(rawurl string) (url *URL, err error) {
 	// Cut off #frag
-	rawurl, frag := split(rawurlref, '#', true)
-	if url, err = Parse(rawurl); err != nil {
+	u, frag := split(rawurl, '#', true)
+	if url, err = Parse(u); err != nil {
 		return nil, err
 	}
 	if frag == "" {
 		return url, nil
 	}
 	if url.Fragment, err = unescape(frag, encodeFragment); err != nil {
-		return nil, &Error{"parse", rawurlref, err}
+		return nil, &Error{"parse", rawurl, err}
 	}
 	return url, nil
 }

src/pkg/net/url/url_test.go

@@ -260,9 +260,9 @@ func TestParse(t *testing.T) {
 	DoTest(t, Parse, "Parse", urlnofragtests)
 }
 
-func TestParseWithReference(t *testing.T) {
-	DoTest(t, ParseWithReference, "ParseWithReference", urltests)
-	DoTest(t, ParseWithReference, "ParseWithReference", urlfragtests)
+func TestParseWithFragment(t *testing.T) {
+	DoTest(t, ParseWithFragment, "ParseWithFragment", urltests)
+	DoTest(t, ParseWithFragment, "ParseWithFragment", urlfragtests)
 }
 
 const pathThatLooksSchemeRelative = "//not.a.user@not.a.host/just/a/path"
@@ -320,8 +320,8 @@ func DoTestString(t *testing.T, parse func(string) (*URL, error), name string, t
 func TestURLString(t *testing.T) {
 	DoTestString(t, Parse, "Parse", urltests)
 	DoTestString(t, Parse, "Parse", urlnofragtests)
-	DoTestString(t, ParseWithReference, "ParseWithReference", urltests)
-	DoTestString(t, ParseWithReference, "ParseWithReference", urlfragtests)
+	DoTestString(t, ParseWithFragment, "ParseWithFragment", urltests)
+	DoTestString(t, ParseWithFragment, "ParseWithFragment", urlfragtests)
 }
 
 type EscapeTest struct {
@@ -538,7 +538,7 @@ var resolveReferenceTests = []struct {
 
 func TestResolveReference(t *testing.T) {
 	mustParse := func(url string) *URL {
-		u, err := ParseWithReference(url)
+		u, err := ParseWithFragment(url)
 		if err != nil {
 			t.Fatalf("Expected URL to parse: %q, got error: %v", url, err)
 		}
@@ -589,7 +589,7 @@ func TestResolveReference(t *testing.T) {
 
 func TestResolveReferenceOpaque(t *testing.T) {
 	mustParse := func(url string) *URL {
-		u, err := ParseWithReference(url)
+		u, err := ParseWithFragment(url)
 		if err != nil {
 			t.Fatalf("Expected URL to parse: %q, got error: %v", url, err)
 		}