001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.modules.cnd.modelimpl.csm.deep;
043:
044: import java.util.*;
045:
046: import org.netbeans.modules.cnd.api.model.*;
047: import org.netbeans.modules.cnd.api.model.deep.*;
048:
049: import org.netbeans.modules.cnd.modelimpl.csm.*;
050: import org.netbeans.modules.cnd.modelimpl.csm.core.*;
051:
052: import antlr.collections.AST;
053: import org.netbeans.modules.cnd.modelimpl.parser.generated.CPPTokenTypes;
054:
055: /**
056: * CsmIfStatement implementation
057: * @author Vladimir Kvashin
058: */
059: public class IfStatementImpl extends StatementBase implements
060: CsmIfStatement {
061:
062: private CsmCondition condition;
063: private CsmStatement thenStmt;
064: private CsmStatement elseStmt;
065:
066: public IfStatementImpl(AST ast, CsmFile file, CsmScope scope) {
067: super (ast, file, scope);
068: }
069:
070: public CsmStatement.Kind getKind() {
071: return CsmStatement.Kind.IF;
072: }
073:
074: public CsmCondition getCondition() {
075: renderIfNeed(); // be lazy! ;-)
076: return condition;
077: }
078:
079: public CsmStatement getThen() {
080: renderIfNeed(); // lazyness is good ;-)
081: return thenStmt;
082: }
083:
084: public CsmStatement getElse() {
085: renderIfNeed(); // long live lazyness! ;-))
086: return elseStmt;
087: }
088:
089: private void renderIfNeed() {
090: if (condition == null) { // should never be null, so used as a flag
091: render(getAst());
092: }
093: }
094:
095: private void render(AST ast) {
096: AstRenderer renderer = new AstRenderer(
097: (FileImpl) getContainingFile());
098: boolean inElse = false;
099: for (AST token = ast.getFirstChild(); token != null; token = token
100: .getNextSibling()) {
101: switch (token.getType()) {
102: case CPPTokenTypes.CSM_CONDITION:
103: condition = renderer.renderCondition(token, this );
104: break;
105: case CPPTokenTypes.LITERAL_else:
106: inElse = true;
107: break;
108: default:
109: //if( AstRenderer.isStatement(token) ) {
110: CsmStatement stmt = AstRenderer.renderStatement(token,
111: getContainingFile(), this );
112: if (stmt != null) {
113: if (inElse) {
114: elseStmt = stmt;
115: } else {
116: thenStmt = stmt;
117: }
118: }
119: //}
120: }
121: }
122: }
123:
124: public Collection<CsmScopeElement> getScopeElements() {
125: return DeepUtil.merge(getCondition(), getThen(), getElse());
126: }
127:
128: }
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