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/*******************************************************************************
* Copyright (c) 2013, 2014 Nathan Ridge
* 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:
* Nathan Ridge - Initial API and implementation
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTDecltypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTExpression;
import org.eclipse.cdt.core.parser.Keywords;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.IASTAmbiguityParent;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.SemanticUtil;
/**
* Implementation of ICPPASTDecltypeSpecifier.
*/
public class CPPASTDecltypeSpecifier extends ASTNode
implements ICPPASTDecltypeSpecifier, IASTAmbiguityParent {
private ICPPASTExpression fDecltypeExpression;
private char[] fSignature;
public CPPASTDecltypeSpecifier(ICPPASTExpression decltypeExpression) {
fDecltypeExpression = decltypeExpression;
fDecltypeExpression.setParent(this);
}
@Override
public ICPPASTExpression getDecltypeExpression() {
return fDecltypeExpression;
}
@Override
public CPPASTDecltypeSpecifier copy() {
return copy(CopyStyle.withoutLocations);
}
@Override
public CPPASTDecltypeSpecifier copy(CopyStyle style) {
CPPASTDecltypeSpecifier copy = new CPPASTDecltypeSpecifier((ICPPASTExpression) fDecltypeExpression.copy(style));
return copy(copy, style);
}
@Override
public char[] toCharArray() {
if (fSignature == null) {
StringBuilder buffer = new StringBuilder();
buffer.append(Keywords.cDECLTYPE);
buffer.append(Keywords.cpLPAREN);
buffer.append(fDecltypeExpression.getEvaluation().getSignature());
buffer.append(Keywords.cpRPAREN);
final int len = buffer.length();
fSignature = new char[len];
buffer.getChars(0, len, fSignature, 0);
}
return fSignature;
}
@Override
public boolean accept(ASTVisitor visitor) {
if (visitor.shouldVisitDecltypeSpecifiers) {
switch (visitor.visit(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
if (!fDecltypeExpression.accept(visitor))
return false;
if (visitor.shouldVisitDecltypeSpecifiers) {
switch (visitor.leave(this)) {
case ASTVisitor.PROCESS_ABORT: return false;
case ASTVisitor.PROCESS_SKIP: return true;
default: break;
}
}
return true;
}
@Override
public IBinding resolveBinding() {
IType type = fDecltypeExpression.getExpressionType();
type = SemanticUtil.getNestedType(type, SemanticUtil.CVTYPE);
if (type instanceof IBinding)
return (IBinding) type;
return null;
}
@Override
public IBinding resolvePreBinding() {
return resolveBinding();
}
@Override
public void replace(IASTNode child, IASTNode other) {
if (child == fDecltypeExpression) {
other.setPropertyInParent(child.getPropertyInParent());
other.setParent(child.getParent());
fDecltypeExpression = (ICPPASTExpression) other;
fSignature = null;
}
}
}
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