01: /*
02: * Copyright 2007 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12: * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13: * License for the specific language governing permissions and limitations under
14: * the License.
15: */
16: package com.google.gwt.dev.js.ast;
17:
18: /**
19: * Represents a JavaScript expression that references a name.
20: */
21: public final class JsNameRef extends JsExpression implements HasName {
22:
23: private String ident;
24: private JsName name;
25: private JsExpression qualifier;
26:
27: public JsNameRef(JsName name) {
28: this .name = name;
29: }
30:
31: public JsNameRef(String ident) {
32: this .ident = ident;
33: }
34:
35: public String getIdent() {
36: return (name == null) ? ident : name.getIdent();
37: }
38:
39: public JsName getName() {
40: return name;
41: }
42:
43: public JsExpression getQualifier() {
44: return qualifier;
45: }
46:
47: public String getShortIdent() {
48: return (name == null) ? ident : name.getShortIdent();
49: }
50:
51: @Override
52: public boolean isLeaf() {
53: if (qualifier == null) {
54: return true;
55: } else {
56: return false;
57: }
58: }
59:
60: public boolean isResolved() {
61: return name != null;
62: }
63:
64: public void resolve(JsName name) {
65: this .name = name;
66: this .ident = null;
67: }
68:
69: public void setQualifier(JsExpression qualifier) {
70: this .qualifier = qualifier;
71: }
72:
73: public void traverse(JsVisitor v, JsContext<JsExpression> ctx) {
74: if (v.visit(this, ctx)) {
75: if (qualifier != null) {
76: qualifier = v.accept(qualifier);
77: }
78: }
79: v.endVisit(this, ctx);
80: }
81: }
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