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/*******************************************************************************
* Copyright (c) 2008, 2014 IBM Wind River Systems, Inc. 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:
* Markus Schorn - Initial API and implementation
* Sergey Prigogin (Google)
* Thomas Corbat (IFS)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;
import org.eclipse.cdt.core.dom.ast.IASTAttributeSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTAttribute;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTPointerOperator;
import org.eclipse.cdt.core.dom.ast.IScope;
import org.eclipse.cdt.core.parser.util.ArrayUtil;
import org.eclipse.cdt.internal.core.dom.parser.ASTAmbiguousNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguousDeclarator;
import org.eclipse.cdt.internal.core.dom.parser.IASTInternalScope;
import org.eclipse.core.runtime.Assert;
/**
* Handles ambiguities when parsing declarators.
* <br>
* Example: void f(int (D)); // is D a type?
* @since 5.0.1
*/
public class CASTAmbiguousDeclarator extends ASTAmbiguousNode implements IASTAmbiguousDeclarator {
private IASTDeclarator[] dtors = new IASTDeclarator[2];
private int dtorPos= -1;
public CASTAmbiguousDeclarator(IASTDeclarator... decls) {
for (IASTDeclarator d : decls) {
if (d != null) {
addDeclarator(d);
}
}
}
@Override
protected void beforeResolution() {
// populate containing scope, so that it will not be affected by the alternative branches.
IScope scope= CVisitor.getContainingScope(this);
if (scope instanceof IASTInternalScope) {
((IASTInternalScope) scope).populateCache();
}
}
@Override
public void addDeclarator(IASTDeclarator d) {
assertNotFrozen();
if (d != null) {
dtors = ArrayUtil.appendAt(IASTDeclarator.class, dtors, ++dtorPos, d);
d.setParent(this);
d.setPropertyInParent(SUBDECLARATOR);
}
}
@Override
public IASTDeclarator[] getDeclarators() {
dtors = ArrayUtil.trimAt(IASTDeclarator.class, dtors, dtorPos);
return dtors;
}
@Override
public IASTNode[] getNodes() {
return getDeclarators();
}
@Override
public IASTInitializer getInitializer() {
return dtors[0].getInitializer();
}
@Override
public IASTName getName() {
return dtors[0].getName();
}
@Override
public IASTDeclarator getNestedDeclarator() {
return dtors[0].getNestedDeclarator();
}
@Override
public IASTPointerOperator[] getPointerOperators() {
return dtors[0].getPointerOperators();
}
@Override
public IASTAttribute[] getAttributes() {
return dtors[0].getAttributes();
}
@Override
public void addAttribute(IASTAttribute attribute) {
assertNotFrozen();
Assert.isLegal(false);
}
@Override
public IASTAttributeSpecifier[] getAttributeSpecifiers() {
return dtors[0].getAttributeSpecifiers();
}
@Override
public void addAttributeSpecifier(IASTAttributeSpecifier attributeSpecifier) {
assertNotFrozen();
Assert.isLegal(false);
}
@Override
public int getRoleForName(IASTName name) {
return dtors[0].getRoleForName(name);
}
@Override
public void addPointerOperator(IASTPointerOperator operator) {
assertNotFrozen();
Assert.isLegal(false);
}
@Override
public void setInitializer(IASTInitializer initializer) {
assertNotFrozen();
Assert.isLegal(false);
}
@Override
public void setName(IASTName name) {
assertNotFrozen();
Assert.isLegal(false);
}
@Override
public void setNestedDeclarator(IASTDeclarator nested) {
assertNotFrozen();
Assert.isLegal(false);
}
@Override
public IASTDeclarator copy() {
throw new UnsupportedOperationException();
}
@Override
public IASTDeclarator copy(CopyStyle style) {
throw new UnsupportedOperationException();
}
}
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