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/*******************************************************************************
* Copyright (c) 2009, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Mike Kucera (IBM) - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import java.util.Arrays;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.ExpansionOverlapsBoundaryException;
import org.eclipse.cdt.core.dom.ast.IASTImplicitName;
import org.eclipse.cdt.core.dom.ast.IASTImplicitNameOwner;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.parser.IToken;
import org.eclipse.cdt.core.parser.Keywords;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
public class CPPASTImplicitName extends CPPASTName implements IASTImplicitName {
private boolean alternate;
private boolean isOperator;
private boolean isDefinition= false;
public CPPASTImplicitName(char[] name, IASTNode parent) {
super(name);
setParent(parent);
setPropertyInParent(IASTImplicitNameOwner.IMPLICIT_NAME);
}
public CPPASTImplicitName(OverloadableOperator op, IASTNode parent) {
this(op.toCharArray(), parent);
isOperator = true;
}
@Override
public CPPASTImplicitName copy() {
throw new UnsupportedOperationException();
}
@Override
public CPPASTImplicitName copy(CopyStyle style) {
throw new UnsupportedOperationException();
}
@Override
public boolean isAlternate() {
return alternate;
}
public void setAlternate(boolean alternate) {
this.alternate = alternate;
}
@Override
public boolean accept(ASTVisitor action) {
if ((!alternate && action.shouldVisitImplicitNames) ||
(alternate && action.shouldVisitImplicitNameAlternates)) {
switch (action.visit(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
}
switch (action.leave(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
}
}
return true;
}
@Override
public boolean isDeclaration() {
return false;
}
@Override
public boolean isDefinition() {
return isDefinition;
}
@Override
public boolean isReference() {
return !isDefinition;
}
public void setIsDefinition(boolean val) {
isDefinition= val;
}
/**
* Utility method for setting offsets using operator syntax.
*
* @param trailing true for trailing syntax, false for leading syntax
*/
public void computeOperatorOffsets(IASTNode relativeNode, boolean trailing) {
if (relativeNode == null)
return;
IToken first;
try {
first = trailing ? relativeNode.getTrailingSyntax() : relativeNode.getLeadingSyntax();
int offset = ((ASTNode) relativeNode).getOffset() + first.getOffset();
if (trailing)
offset += ((ASTNode) relativeNode).getLength();
OverloadableOperator oo = OverloadableOperator.valueOf(first);
if ((first.getNext() == null && oo != null) ||
Arrays.equals(first.getCharImage(), Keywords.cDELETE) ||
Arrays.equals(first.getCharImage(), Keywords.cNEW)) {
int length = first.getLength();
setOffsetAndLength(offset, length);
} else {
setOffsetAndLength(offset, 0);
}
} catch (ExpansionOverlapsBoundaryException e) {
ASTNode parent = (ASTNode) getParent();
setOffsetAndLength(parent.getOffset() + parent.getLength(), 0);
}
}
public void setOperator(boolean isOperator) {
this.isOperator = isOperator;
}
@Override
public boolean isOperator() {
return isOperator;
}
}
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