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Diffstat (limited to 'libgo/go/html/template/clone.go')
-rw-r--r--libgo/go/html/template/clone.go90
1 files changed, 0 insertions, 90 deletions
diff --git a/libgo/go/html/template/clone.go b/libgo/go/html/template/clone.go
deleted file mode 100644
index d0d8ea46733..00000000000
--- a/libgo/go/html/template/clone.go
+++ /dev/null
@@ -1,90 +0,0 @@
-// 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 template
-
-import (
- "text/template/parse"
-)
-
-// clone clones a template Node.
-func clone(n parse.Node) parse.Node {
- switch t := n.(type) {
- case *parse.ActionNode:
- return cloneAction(t)
- case *parse.IfNode:
- b := new(parse.IfNode)
- copyBranch(&b.BranchNode, &t.BranchNode)
- return b
- case *parse.ListNode:
- return cloneList(t)
- case *parse.RangeNode:
- b := new(parse.RangeNode)
- copyBranch(&b.BranchNode, &t.BranchNode)
- return b
- case *parse.TemplateNode:
- return cloneTemplate(t)
- case *parse.TextNode:
- return cloneText(t)
- case *parse.WithNode:
- b := new(parse.WithNode)
- copyBranch(&b.BranchNode, &t.BranchNode)
- return b
- }
- panic("cloning " + n.String() + " is unimplemented")
-}
-
-// cloneAction returns a deep clone of n.
-func cloneAction(n *parse.ActionNode) *parse.ActionNode {
- // We use keyless fields because they won't compile if a field is added.
- return &parse.ActionNode{n.NodeType, n.Line, clonePipe(n.Pipe)}
-}
-
-// cloneList returns a deep clone of n.
-func cloneList(n *parse.ListNode) *parse.ListNode {
- if n == nil {
- return nil
- }
- // We use keyless fields because they won't compile if a field is added.
- c := parse.ListNode{n.NodeType, make([]parse.Node, len(n.Nodes))}
- for i, child := range n.Nodes {
- c.Nodes[i] = clone(child)
- }
- return &c
-}
-
-// clonePipe returns a shallow clone of n.
-// The escaper does not modify pipe descendants in place so there's no need to
-// clone deeply.
-func clonePipe(n *parse.PipeNode) *parse.PipeNode {
- if n == nil {
- return nil
- }
- // We use keyless fields because they won't compile if a field is added.
- return &parse.PipeNode{n.NodeType, n.Line, n.Decl, n.Cmds}
-}
-
-// cloneTemplate returns a deep clone of n.
-func cloneTemplate(n *parse.TemplateNode) *parse.TemplateNode {
- // We use keyless fields because they won't compile if a field is added.
- return &parse.TemplateNode{n.NodeType, n.Line, n.Name, clonePipe(n.Pipe)}
-}
-
-// cloneText clones the given node sharing its []byte.
-func cloneText(n *parse.TextNode) *parse.TextNode {
- // We use keyless fields because they won't compile if a field is added.
- return &parse.TextNode{n.NodeType, n.Text}
-}
-
-// copyBranch clones src into dst.
-func copyBranch(dst, src *parse.BranchNode) {
- // We use keyless fields because they won't compile if a field is added.
- *dst = parse.BranchNode{
- src.NodeType,
- src.Line,
- clonePipe(src.Pipe),
- cloneList(src.List),
- cloneList(src.ElseList),
- }
-}