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
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016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
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019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
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022: * "Portions Copyrighted [year] [name of copyright owner]"
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024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
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033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
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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.apt.impl.support;
043:
044: import antlr.Token;
045: import java.util.Collection;
046: import java.util.List;
047: import java.util.logging.Level;
048: import org.netbeans.modules.cnd.apt.support.APTMacro;
049: import org.netbeans.modules.cnd.apt.support.APTMacroMap;
050: import org.netbeans.modules.cnd.apt.utils.APTUtils;
051:
052: /**
053: *
054: * @author Vladimir Voskresensky
055: */
056: public class APTSystemMacroMap extends APTBaseMacroMap implements
057: APTMacroMap {
058:
059: private APTMacroMap preMacroMap;
060:
061: // /** Creates a new instance of APTSystemMacroMap */
062: protected APTSystemMacroMap() {
063: preMacroMap = new APTPredefinedMacroMap();
064: }
065:
066: public APTSystemMacroMap(List<String> sysMacros) {
067: this ();
068: fill(sysMacros);
069: }
070:
071: protected APTMacro createMacro(Token name,
072: Collection<Token> params, List<Token> value) {
073: return new APTMacroImpl(name, params, value, true);
074: }
075:
076: public boolean pushExpanding(Token token) {
077: APTUtils.LOG.log(Level.SEVERE,
078: "pushExpanding is not supported",
079: new IllegalAccessException());// NOI18N
080: return false;
081: }
082:
083: public void popExpanding() {
084: APTUtils.LOG.log(Level.SEVERE, "popExpanding is not supported",
085: new IllegalAccessException());// NOI18N
086: // return null;
087: }
088:
089: public boolean isExpanding(Token token) {
090: APTUtils.LOG.log(Level.SEVERE, "isExpanding is not supported",
091: new IllegalAccessException());// NOI18N
092: return false;
093: }
094:
095: @Override
096: public APTMacro getMacro(Token token) {
097: APTMacro res = super .getMacro(token);
098:
099: if (res == null) {
100: res = preMacroMap.getMacro(token);
101: }
102: // If UNDEFINED_MACRO is found then the requested macro is undefined, return null
103: return (res != APTMacroMapSnapshot.UNDEFINED_MACRO) ? res
104: : null;
105: }
106:
107: protected APTMacroMapSnapshot makeSnapshot(
108: APTMacroMapSnapshot parent) {
109: assert parent == null : "parent must be null";
110: return new APTMacroMapSnapshot(parent);
111: }
112:
113: @Override
114: public void define(Token name, Collection<Token> params,
115: List<Token> value) {
116: throw new UnsupportedOperationException(
117: "Can not modify immutable System macro map"); // NOI18N
118: }
119:
120: @Override
121: public void undef(Token name) {
122: throw new UnsupportedOperationException(
123: "Can not modify immutable System macro map"); // NOI18N
124: }
125: }
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