/*******************************************************************************
* Copyright (c) 2004, 2013 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:
* John Camelon (IBM) - Initial API and implementation
* Yuan Zhang / Beth Tibbitts (IBM Research)
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTEqualsInitializer;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTInitializerClause;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.c.ICASTDesignatedInitializer;
import org.eclipse.cdt.core.dom.ast.c.ICASTDesignator;
import org.eclipse.cdt.core.parser.util.ArrayUtil;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;
/**
* Implementation for designated initializers.
*/
public class CASTDesignatedInitializer extends ASTNode implements ICASTDesignatedInitializer, IASTAmbiguityParent {
private IASTInitializerClause rhs;
private ICASTDesignator[] designators;
private int designatorsPos = -1;
public CASTDesignatedInitializer() {
}
public CASTDesignatedInitializer(IASTInitializerClause init) {
setOperand(init);
}
@Override
public CASTDesignatedInitializer copy() {
return copy(CopyStyle.withoutLocations);
}
@Override
public CASTDesignatedInitializer copy(CopyStyle style) {
CASTDesignatedInitializer copy =
new CASTDesignatedInitializer(rhs == null ? null : rhs.copy(style));
for (ICASTDesignator designator : getDesignators()) {
copy.addDesignator(designator == null ? null : designator.copy(style));
}
return copy(copy, style);
}
@Override
public void addDesignator(ICASTDesignator designator) {
assertNotFrozen();
if (designator != null) {
designator.setParent(this);
designator.setPropertyInParent(DESIGNATOR);
designators = ArrayUtil.appendAt(ICASTDesignator.class, designators, ++designatorsPos, designator);
}
}
@Override
public ICASTDesignator[] getDesignators() {
if (designators == null)
return ICASTDesignatedInitializer.EMPTY_DESIGNATOR_ARRAY;
designators = ArrayUtil.trimAt(ICASTDesignator.class, designators, designatorsPos);
return designators;
}
@Override
public IASTInitializerClause getOperand() {
return rhs;
}
@Override
public void setOperand(IASTInitializerClause operand) {
assertNotFrozen();
this.rhs = operand;
if (rhs != null) {
rhs.setParent(this);
rhs.setPropertyInParent(OPERAND);
}
}
@Override
@Deprecated
public IASTInitializer getOperandInitializer() {
if (rhs instanceof IASTInitializer) {
return (IASTInitializer) rhs;
}
if (rhs instanceof IASTExpression) {
CASTEqualsInitializer init = new CASTEqualsInitializer(((IASTExpression) rhs).copy());
init.setParent(this);
init.setPropertyInParent(OPERAND);
return init;
}
return null;
}
@Override
@Deprecated
public void setOperandInitializer(IASTInitializer rhs) {
if (rhs instanceof IASTEqualsInitializer) {
setOperand(((IASTEqualsInitializer) rhs).getInitializerClause());
} else if (rhs instanceof IASTInitializerClause) {
setOperand((IASTInitializerClause) rhs);
} else {
setOperand(null);
}
}
@Override
public boolean accept(ASTVisitor action) {
if (action.shouldVisitInitializers) {
switch (action.visit(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
ICASTDesignator[] ds = getDesignators();
for (int i = 0; i < ds.length; i++) {
if (!ds[i].accept(action))
return false;
}
if (rhs != null && !rhs.accept(action)) return false;
if (action.shouldVisitInitializers) {
switch (action.leave(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
return true;
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (child == rhs) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
rhs = (IASTInitializerClause) other;
}
}
}