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
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008: * Development and Distribution License("CDDL") (collectively, the
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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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026: * The Original Software is NetBeans. The Initial Developer of the Original
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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 antlr.collections.AST;
050: import java.io.DataInput;
051: import java.io.DataOutput;
052: import java.io.IOException;
053:
054: import org.netbeans.modules.cnd.modelimpl.csm.core.*;
055: import org.netbeans.modules.cnd.modelimpl.repository.PersistentUtils;
056: import org.netbeans.modules.cnd.modelimpl.uid.UIDCsmConverter;
057: import org.netbeans.modules.cnd.modelimpl.uid.UIDObjectFactory;
058:
059: /**
060: * Common base for all expression implementations
061: * @author Vladimir Kvashin
062: */
063: public class ExpressionBase extends OffsetableBase implements
064: CsmExpression {
065:
066: private CsmExpression.Kind kind;
067: private final CsmExpression parent;
068: private List<CsmExpression> operands;
069: private CsmScope scopeRef;
070: private CsmUID<CsmScope> scopeUID;
071:
072: public ExpressionBase(AST ast, CsmFile file, CsmExpression parent,
073: CsmScope scope) {
074: super (ast, file);
075: this .parent = parent;
076: if (scope != null) {
077: setScope(scope);
078: }
079: }
080:
081: public CsmExpression.Kind getKind() {
082: return kind;
083: }
084:
085: public CsmScope getScope() {
086: CsmScope scope = this .scopeRef;
087: if (scope == null) {
088: scope = UIDCsmConverter.UIDtoScope(this .scopeUID);
089: assert (scope != null || this .scopeUID == null) : "null object for UID "
090: + this .scopeUID;
091: }
092: return scope;
093: }
094:
095: protected void setScope(CsmScope scope) {
096: // within bodies scope is a statement - it is not Identifiable
097: if (scope instanceof CsmIdentifiable) {
098: this .scopeUID = UIDCsmConverter.scopeToUID(scope);
099: assert (scopeUID != null || scope == null);
100: } else {
101: this .scopeRef = scope;
102: }
103: }
104:
105: public List/*<CsmExpression>*/getOperands() {
106: if (operands == null) {
107: operands = new ArrayList<CsmExpression>();
108: }
109: return operands;
110: }
111:
112: public CsmExpression getParent() {
113: return parent;
114: }
115:
116: ////////////////////////////////////////////////////////////////////////////
117: // impl of SelfPersistent
118:
119: @Override
120: public void write(DataOutput output) throws IOException {
121: super .write(output);
122: PersistentUtils.writeExpression(this .parent, output);
123: PersistentUtils.writeExpressionKind(this .kind, output);
124: PersistentUtils.writeExpressions(this .operands, output);
125: UIDObjectFactory.getDefaultFactory().writeUID(this .scopeUID,
126: output);
127: }
128:
129: public ExpressionBase(DataInput input) throws IOException {
130: super (input);
131: this .parent = PersistentUtils.readExpression(input);
132: this .kind = PersistentUtils.readExpressionKind(input);
133: this .operands = PersistentUtils.readExpressions(
134: new ArrayList<CsmExpression>(), input);
135: this.scopeUID = UIDObjectFactory.getDefaultFactory().readUID(
136: input);
137: }
138: }
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