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/*******************************************************************************
* Copyright (c) 2008, 2012 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)
* Nathan Ridge
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IScope;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPConstructor;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunction;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPFunctionType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPParameter;
import org.eclipse.cdt.internal.core.dom.parser.ProblemType;
/**
* Represents a reference to a (member) function (instance), which cannot be resolved because
* an argument depends on a template parameter. A compiler would resolve it during instantiation.
*/
public class CPPDeferredFunction extends CPPUnknownBinding implements ICPPFunction, ICPPComputableFunction {
private static final ICPPFunctionType FUNCTION_TYPE=
new CPPFunctionType(ProblemType.UNKNOWN_FOR_EXPRESSION, IType.EMPTY_TYPE_ARRAY);
/**
* Creates a CPPDeferredFunction given a set of overloaded functions
* (some of which may be templates) that the function might resolve to.
* At least one candidate must be provided.
*
* @param candidates a set of overloaded functions, some of which may be templates
* @return the constructed CPPDeferredFunction
*/
public static ICPPFunction createForCandidates(ICPPFunction... candidates) {
if (candidates[0] instanceof ICPPConstructor)
return new CPPUnknownConstructor(((ICPPConstructor) candidates[0]).getClassOwner(), candidates);
final IBinding owner = candidates[0].getOwner();
return new CPPDeferredFunction(owner, candidates[0].getNameCharArray(), candidates);
}
private final IBinding fOwner;
private final ICPPFunction[] fCandidates;
public CPPDeferredFunction(IBinding owner, char[] name, ICPPFunction[] candidates) {
super(name);
fOwner= owner;
fCandidates = candidates;
}
public ICPPFunction[] getCandidates() {
return fCandidates;
}
@Override
public IType[] getExceptionSpecification() {
return null;
}
@Override
public boolean isDeleted() {
return false;
}
@Override
public boolean isExternC() {
return false;
}
@Override
public boolean isInline() {
return false;
}
@Override
public boolean isMutable() {
return false;
}
@Override
public boolean isConstexpr() {
return false;
}
@Override
public IScope getFunctionScope() {
return asScope();
}
@Override
public ICPPParameter[] getParameters() {
return ICPPParameter.EMPTY_CPPPARAMETER_ARRAY;
}
@Override
public ICPPFunctionType getType() {
return FUNCTION_TYPE;
}
@Override
public boolean isAuto() {
return false;
}
@Override
public boolean isExtern() {
return false;
}
@Override
public boolean isRegister() {
return false;
}
@Override
public boolean isStatic() {
return false;
}
@Override
public boolean takesVarArgs() {
return false;
}
@Override
public boolean isNoReturn() {
return false;
}
@Override
public int getRequiredArgumentCount() {
return 0;
}
@Override
public boolean hasParameterPack() {
return false;
}
@Override
public IBinding getOwner() {
return fOwner;
}
@Override
public ICPPEvaluation getReturnExpression() {
return null;
}
}
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