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/*******************************************************************************
* Copyright (c) 2005, 2008 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 - Initial API and implementation
* Bryan Wilkinson (QNX)
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
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.IASTParameterDeclaration;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IFunctionType;
import org.eclipse.cdt.core.dom.ast.IParameter;
import org.eclipse.cdt.core.dom.ast.IScope;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunction;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPParameter;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPScope;
import org.eclipse.cdt.core.index.IIndexBinding;
import org.eclipse.cdt.core.parser.util.ObjectMap;
/**
* @author aniefer
*/
public class CPPFunctionSpecialization extends CPPSpecialization implements ICPPFunction, ICPPInternalFunction {
private IFunctionType type = null;
private IParameter [] specializedParams = null;
public CPPFunctionSpecialization(IBinding orig, ICPPScope scope, ObjectMap argMap ) {
super(orig, scope, argMap);
}
private ICPPFunction getFunction(){
return (ICPPFunction) getSpecializedBinding();
}
public IParameter[] getParameters() throws DOMException {
if( specializedParams == null ){
ICPPFunction function = (ICPPFunction) getSpecializedBinding();
IParameter [] params = function.getParameters();
specializedParams = new IParameter[ params.length];
for( int i = 0; i < params.length; i++ ){
specializedParams[i] = new CPPParameterSpecialization( (ICPPParameter)params[i], (ICPPScope) getScope(), argumentMap );
}
}
return specializedParams;
}
public IScope getFunctionScope() {
// resolveAllDeclarations();
// if( definition != null ){
// return definition.getFunctionScope();
// }
//
// return declarations[0].getFunctionScope();
return null;
}
public IFunctionType getType() throws DOMException {
if( type == null ){
ICPPFunction function = (ICPPFunction) getSpecializedBinding();
type = function.getType();
type = (IFunctionType) CPPTemplates.instantiateType( type, argumentMap );
}
return type;
}
public boolean isMutable() {
return false;
}
public boolean isInline() throws DOMException {
if( getDefinition() != null ){
IASTNode def = getDefinition();
while( !(def instanceof IASTFunctionDefinition) )
def = def.getParent();
return ((IASTFunctionDefinition)def).getDeclSpecifier().isInline();
}
return getFunction().isInline();
}
public boolean isExternC() throws DOMException {
if (CPPVisitor.isExternC(getDefinition())) {
return true;
}
return getFunction().isExternC();
}
public boolean isStatic() {
return isStatic(true);
}
public boolean isStatic(boolean resolveAll) {
//TODO resolveAll
IBinding f = getSpecializedBinding();
if( f instanceof ICPPInternalFunction)
return ((ICPPInternalFunction)f).isStatic( resolveAll);
if( f instanceof IIndexBinding && f instanceof ICPPFunction ) {
try {
return ((ICPPFunction) f).isStatic();
} catch(DOMException de) { /* cannot occur as we query the index */}
}
return CPPFunction.hasStorageClass( this, IASTDeclSpecifier.sc_static);
}
public boolean isExtern() throws DOMException {
ICPPFunction f = (ICPPFunction) getSpecializedBinding();
if( f != null )
return f.isExtern();
return CPPFunction.hasStorageClass( this, IASTDeclSpecifier.sc_extern );
}
public boolean isAuto() throws DOMException {
ICPPFunction f = (ICPPFunction) getSpecializedBinding();
if( f != null )
return f.isAuto();
return CPPFunction.hasStorageClass( this, IASTDeclSpecifier.sc_auto );
}
public boolean isRegister() throws DOMException {
ICPPFunction f = (ICPPFunction) getSpecializedBinding();
if( f != null )
return f.isRegister();
return CPPFunction.hasStorageClass( this, IASTDeclSpecifier.sc_register );
}
public boolean takesVarArgs() throws DOMException {
ICPPFunction f = (ICPPFunction) getSpecializedBinding();
if( f != null )
return f.takesVarArgs();
ICPPASTFunctionDeclarator dtor = (ICPPASTFunctionDeclarator) getDefinition();
if( dtor != null ){
return dtor.takesVarArgs();
}
ICPPASTFunctionDeclarator [] ds = (ICPPASTFunctionDeclarator[]) getDeclarations();
if( ds != null && ds.length > 0 ){
return ds[0].takesVarArgs();
}
return false;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPInternalFunction#resolveParameter(org.eclipse.cdt.core.dom.ast.IASTParameterDeclaration)
*/
public IBinding resolveParameter( IASTParameterDeclaration param ) {
IASTDeclarator dtor = param.getDeclarator();
while( dtor.getNestedDeclarator() != null )
dtor = dtor.getNestedDeclarator();
IASTName name = dtor.getName();
IBinding binding = name.getBinding();
if( binding != null )
return binding;
ICPPASTFunctionDeclarator fdtor = (ICPPASTFunctionDeclarator) param.getParent();
IASTParameterDeclaration [] ps = fdtor.getParameters();
int i = 0;
for( ; i < ps.length; i++ ){
if( param == ps[i] )
break;
}
try {
IParameter [] params = getParameters();
if( i < params.length ){
name.setBinding( params[i] );
if( params[i] instanceof ICPPInternalBinding )
((ICPPInternalBinding)params[i]).addDeclaration( name );
return params[i];
}
} catch ( DOMException e ) {
return e.getProblem();
}
return null;
}
@Override
public void addDefinition(IASTNode node) {
IASTNode n = node;
while( n instanceof IASTName )
n = n.getParent();
if( !(n instanceof ICPPASTFunctionDeclarator) )
return;
updateParameterBindings( (ICPPASTFunctionDeclarator) n );
super.addDefinition( n );
}
@Override
public void addDeclaration(IASTNode node) {
IASTNode n = node;
while( n instanceof IASTName )
n = n.getParent();
if( !(n instanceof ICPPASTFunctionDeclarator) )
return;
updateParameterBindings( (ICPPASTFunctionDeclarator) n );
super.addDeclaration( n );
}
protected void updateParameterBindings( ICPPASTFunctionDeclarator fdtor ){
IParameter [] params = null;
try {
params = getParameters();
} catch ( DOMException e ) {
return;
}
IASTParameterDeclaration [] nps = fdtor.getParameters();
for( int i = 0; i < nps.length; i++ ){
//temp = (CPPParameter) ops[i].getDeclarator().getName().getBinding();
if( params[i] != null ){
IASTDeclarator dtor = nps[i].getDeclarator();
while( dtor.getNestedDeclarator() != null )
dtor = dtor.getNestedDeclarator();
IASTName name = dtor.getName();
name.setBinding( params[i] );
if( params[i] instanceof ICPPInternalBinding )
((ICPPInternalBinding)params[i]).addDeclaration( name );
}
}
}
}
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