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/*******************************************************************************
* Copyright (c) 2004, 2005 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:
* IBM Rational Software - Initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.c;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IASTCompoundStatement;
import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTFunctionDefinition;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
import org.eclipse.cdt.core.dom.ast.IParameter;
import org.eclipse.cdt.core.dom.ast.IScope;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.gnu.c.ICASTKnRFunctionDeclarator;
import org.eclipse.cdt.core.parser.util.ArrayUtil;
import org.eclipse.cdt.internal.core.dom.parser.ProblemBinding;
import org.eclipse.core.runtime.PlatformObject;
/**
* Created on Nov 5, 2004
* @author aniefer
*/
public class CParameter extends PlatformObject implements IParameter {
public static class CParameterProblem extends ProblemBinding implements IParameter {
public CParameterProblem( IASTNode node, int id, char[] arg ) {
super( node, id, arg );
}
public IType getType() throws DOMException {
throw new DOMException( this );
}
public boolean isStatic() throws DOMException {
throw new DOMException( this );
}
public boolean isExtern() throws DOMException {
throw new DOMException( this );
}
public boolean isAuto() throws DOMException {
throw new DOMException( this );
}
public boolean isRegister() throws DOMException {
throw new DOMException( this );
}
}
private IASTName [] declarations;
private IType type = null;
public CParameter( IASTName parameterName ){
this.declarations = new IASTName [] { parameterName };
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IVariable#getType()
*/
public IType getType() {
if ( type == null && declarations[0].getParent() instanceof IASTDeclarator)
type = CVisitor.createType( (IASTDeclarator)declarations[0].getParent() );
return type;
}
private IASTName getPrimaryDeclaration(){
if( declarations != null ){
for( int i = 0; i < declarations.length && declarations[i] != null; i++ ){
IASTNode node = declarations[i].getParent();
while( !(node instanceof IASTDeclaration) )
node = node.getParent();
if( node.getPropertyInParent() == ICASTKnRFunctionDeclarator.FUNCTION_PARAMETER ||
node instanceof IASTFunctionDefinition )
{
return declarations[i];
}
}
return declarations[0];
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IBinding#getName()
*/
public String getName() {
IASTName name = getPrimaryDeclaration();
if( name != null )
return name.toString();
return CVisitor.EMPTY_STRING;
}
public char[] getNameCharArray(){
IASTName name = getPrimaryDeclaration();
if( name != null )
return name.toCharArray();
return CVisitor.EMPTY_CHAR_ARRAY;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IBinding#getScope()
*/
public IScope getScope() {
//IASTParameterDeclaration or IASTSimpleDeclaration
for( int i = 0; i < declarations.length; i++ ){
IASTNode parent = declarations[i].getParent();
if( parent instanceof ICASTKnRFunctionDeclarator ){
parent = parent.getParent();
return ((IASTCompoundStatement)((IASTFunctionDefinition)parent).getBody()).getScope();
}
IASTNode fdtorNode = parent.getParent().getParent();
if (fdtorNode instanceof IASTFunctionDeclarator) {
IASTFunctionDeclarator fdtor = (IASTFunctionDeclarator)fdtorNode;
parent = fdtor.getParent();
if( parent instanceof IASTFunctionDefinition ) {
return ((IASTCompoundStatement)((IASTFunctionDefinition)parent).getBody()).getScope();
}
}
}
//TODO: if not definition, find definition
return null;
}
/**
* @param name
*/
public void addDeclaration( IASTName name ) {
if( name != null )
declarations = (IASTName[]) ArrayUtil.append( IASTName.class, declarations, name );
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IVariable#isStatic()
*/
public boolean isStatic(){
return false;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IVariable#isExtern()
*/
public boolean isExtern() {
return false;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IVariable#isAuto()
*/
public boolean isAuto() {
return hasStorageClass( IASTDeclSpecifier.sc_auto );
}
/* (non-Javadoc)
* @see org.eclipse.cdt.core.dom.ast.IVariable#isRegister()
*/
public boolean isRegister() {
return hasStorageClass( IASTDeclSpecifier.sc_register );
}
public boolean hasStorageClass( int storage ){
if( declarations == null )
return false;
for( int i = 0; i < declarations.length && declarations[i] != null; i++ ){
IASTNode parent = declarations[i].getParent();
while( !(parent instanceof IASTDeclaration) )
parent = parent.getParent();
if( parent instanceof IASTSimpleDeclaration ){
IASTDeclSpecifier declSpec = ((IASTSimpleDeclaration)parent).getDeclSpecifier();
if( declSpec.getStorageClass() == storage )
return true;
}
}
return false;
}
}
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