| /******************************************************************************* |
| * Copyright (c) 2004, 2015 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 |
| * Markus Schorn (Wind River Systems) |
| *******************************************************************************/ |
| package org.eclipse.cdt.internal.core.dom.parser.cpp; |
| |
| import static org.eclipse.cdt.core.dom.ast.IASTExpression.ValueCategory.LVALUE; |
| |
| import org.eclipse.cdt.core.dom.ast.ASTVisitor; |
| import org.eclipse.cdt.core.dom.ast.IASTImplicitDestructorName; |
| import org.eclipse.cdt.core.dom.ast.IASTTypeId; |
| import org.eclipse.cdt.core.dom.ast.IProblemType; |
| import org.eclipse.cdt.core.dom.ast.IType; |
| import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTTypeIdExpression; |
| import org.eclipse.cdt.internal.core.dom.parser.ASTNode; |
| import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPEvaluation; |
| import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPVisitor; |
| import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.EvalFixed; |
| import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.EvalUnaryTypeID; |
| |
| public class CPPASTTypeIdExpression extends ASTNode implements ICPPASTTypeIdExpression { |
| private int fOperator; |
| private IASTTypeId fTypeId; |
| private ICPPEvaluation fEvaluation; |
| |
| public CPPASTTypeIdExpression() { |
| } |
| |
| public CPPASTTypeIdExpression(int op, IASTTypeId typeId) { |
| this.fOperator = op; |
| setTypeId(typeId); |
| } |
| |
| @Override |
| public CPPASTTypeIdExpression copy() { |
| return copy(CopyStyle.withoutLocations); |
| } |
| |
| @Override |
| public CPPASTTypeIdExpression copy(CopyStyle style) { |
| CPPASTTypeIdExpression copy = |
| new CPPASTTypeIdExpression(fOperator, fTypeId == null ? null : fTypeId.copy(style)); |
| return copy(copy, style); |
| } |
| |
| @Override |
| public int getOperator() { |
| return fOperator; |
| } |
| |
| @Override |
| public void setOperator(int value) { |
| assertNotFrozen(); |
| fOperator = value; |
| } |
| |
| @Override |
| public void setTypeId(IASTTypeId typeId) { |
| assertNotFrozen(); |
| this.fTypeId = typeId; |
| if (typeId != null) { |
| typeId.setParent(this); |
| typeId.setPropertyInParent(TYPE_ID); |
| } |
| } |
| |
| @Override |
| public IASTTypeId getTypeId() { |
| return fTypeId; |
| } |
| |
| @Override |
| public IASTImplicitDestructorName[] getImplicitDestructorNames() { |
| return IASTImplicitDestructorName.EMPTY_NAME_ARRAY; // Type-id expression does not call destructors. |
| } |
| |
| @Override |
| public boolean accept(ASTVisitor action) { |
| if (action.shouldVisitExpressions) { |
| switch (action.visit(this)) { |
| case ASTVisitor.PROCESS_ABORT: return false; |
| case ASTVisitor.PROCESS_SKIP: return true; |
| default: break; |
| } |
| } |
| |
| if (fTypeId != null && !fTypeId.accept(action)) return false; |
| |
| if (action.shouldVisitExpressions) { |
| switch (action.leave(this)) { |
| case ASTVisitor.PROCESS_ABORT: return false; |
| case ASTVisitor.PROCESS_SKIP: return true; |
| default: break; |
| } |
| } |
| return true; |
| } |
| |
| @Override |
| public ICPPEvaluation getEvaluation() { |
| if (fEvaluation == null) { |
| IType type= CPPVisitor.createType(fTypeId); |
| if (type == null || type instanceof IProblemType) { |
| fEvaluation= EvalFixed.INCOMPLETE; |
| } else { |
| fEvaluation= new EvalUnaryTypeID(fOperator, type, this); |
| } |
| } |
| return fEvaluation; |
| } |
| |
| @Override |
| public IType getExpressionType() { |
| return CPPEvaluation.getType(this); |
| } |
| |
| @Override |
| public ValueCategory getValueCategory() { |
| return CPPEvaluation.getValueCategory(this); |
| } |
| |
| @Override |
| public boolean isLValue() { |
| return getValueCategory() == LVALUE; |
| } |
| } |