/*******************************************************************************
* Copyright (c) 2004, 2013 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)
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import java.util.Arrays;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTExpression;
import org.eclipse.cdt.core.dom.ast.IASTImplicitName;
import org.eclipse.cdt.core.dom.ast.IASTImplicitNameOwner;
import org.eclipse.cdt.core.dom.ast.IASTInitializer;
import org.eclipse.cdt.core.dom.ast.IASTName;
import org.eclipse.cdt.core.dom.ast.IASTNode;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.ICPPASTCompletionContext;
import org.eclipse.cdt.core.dom.ast.IType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTConstructorChainInitializer;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTConstructorInitializer;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTFunctionDefinition;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPBase;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPConstructor;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPField;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPMethod;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespace;
import org.eclipse.cdt.core.parser.util.CharArraySet;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPSemantics;
/**
* For example in the constructor definition <br>
* <code>
* Derived() : Base(), field() { <br>
* }
* </code><br>
* {@code Base()} and {@code field()} are the constructor chain initializers.<br>
*/
public class CPPASTConstructorChainInitializer extends ASTNode implements
ICPPASTConstructorChainInitializer, IASTImplicitNameOwner, ICPPASTCompletionContext {
private IASTName name;
private IASTImplicitName[] implicitNames;
private IASTInitializer initializer;
private boolean fIsPackExpansion;
public CPPASTConstructorChainInitializer() {
}
public CPPASTConstructorChainInitializer(IASTName id, IASTInitializer initializer) {
setMemberInitializerId(id);
setInitializer(initializer);
}
@Override
public CPPASTConstructorChainInitializer copy() {
return copy(CopyStyle.withoutLocations);
}
@Override
public CPPASTConstructorChainInitializer copy(CopyStyle style) {
CPPASTConstructorChainInitializer copy = new CPPASTConstructorChainInitializer();
copy.setMemberInitializerId(name == null ? null : name.copy(style));
copy.setInitializer(initializer == null ? null : initializer.copy(style));
copy.fIsPackExpansion = fIsPackExpansion;
return copy(copy, style);
}
@Override
public IASTName getMemberInitializerId() {
return name;
}
@Override
public void setMemberInitializerId(IASTName name) {
assertNotFrozen();
this.name = name;
if (name != null) {
name.setParent(this);
name.setPropertyInParent(MEMBER_ID);
}
}
@Override
public IASTInitializer getInitializer() {
return initializer;
}
@Override
public void setInitializer(IASTInitializer init) {
assertNotFrozen();
initializer = init;
if (init != null) {
init.setParent(this);
init.setPropertyInParent(INITIALIZER);
}
}
@Override
public boolean accept(ASTVisitor action) {
if (action.shouldVisitInitializers) {
switch (action.visit(this)) {
case ASTVisitor.PROCESS_ABORT:
return false;
case ASTVisitor.PROCESS_SKIP:
return true;
}
}
if (name != null && !name.accept(action))
return false;
if (action.shouldVisitImplicitNames) {
for (IASTImplicitName implicitName : getImplicitNames()) {
if (!implicitName.accept(action))
return false;
}
}
if (initializer != null && !initializer.accept(action))
return false;
if (action.shouldVisitInitializers && action.leave(this) == ASTVisitor.PROCESS_ABORT)
return false;
return true;
}
@Override
public int getRoleForName(IASTName n) {
if (name == n)
return r_reference;
return r_unclear;
}
@Override
public IBinding[] findBindings(IASTName n, boolean isPrefix, String[] namespaces) {
IBinding[] bindings = CPPSemantics.findBindingsForContentAssist(n, isPrefix, namespaces);
CharArraySet baseClasses = null;
int j = 0;
for (int i = 0; i < bindings.length; i++) {
final IBinding binding = bindings[i];
if ((binding instanceof ICPPField) || (binding instanceof ICPPNamespace)) {
if (i != j)
bindings[j] = binding;
j++;
} else if (binding instanceof ICPPConstructor || binding instanceof ICPPClassType) {
if (baseClasses == null)
baseClasses = getBaseClasses(n);
if (baseClasses.containsKey(binding.getNameCharArray())) {
if (i != j)
bindings[j] = binding;
j++;
}
}
}
if (j < bindings.length)
return Arrays.copyOfRange(bindings, 0, j);
return bindings;
}
private CharArraySet getBaseClasses(IASTName name) {
CharArraySet result= new CharArraySet(2);
for (IASTNode parent = name.getParent(); parent != null; parent = parent.getParent()) {
if (parent instanceof ICPPASTFunctionDefinition) {
ICPPASTFunctionDefinition fdef= (ICPPASTFunctionDefinition) parent;
IBinding method= fdef.getDeclarator().getName().resolveBinding();
if (method instanceof ICPPMethod) {
ICPPClassType cls= ((ICPPMethod) method).getClassOwner();
for (ICPPBase base : ClassTypeHelper.getBases(cls, fdef)) {
IType baseType= base.getBaseClassType();
if (baseType instanceof IBinding)
result.put(((IBinding) baseType).getNameCharArray());
}
return result;
}
}
}
return result;
}
@Override
public boolean isPackExpansion() {
return fIsPackExpansion;
}
@Override
public void setIsPackExpansion(boolean val) {
assertNotFrozen();
fIsPackExpansion= val;
}
@Override
@Deprecated
public IASTExpression getInitializerValue() {
if (initializer == null || initializer instanceof IASTExpression) {
return (IASTExpression) initializer;
}
if (initializer instanceof ICPPASTConstructorInitializer) {
IASTExpression expr= ((ICPPASTConstructorInitializer) initializer).getExpression();
if (expr != null) {
expr= expr.copy();
expr.setParent(this);
expr.setPropertyInParent(INITIALIZER);
}
return expr;
}
return null;
}
@Override
@Deprecated
public void setInitializerValue(IASTExpression expression) {
assertNotFrozen();
//CDT_70_FIX_FROM_50-#6
CPPASTConstructorInitializer ctorInit= new CPPASTConstructorInitializer();
if (expression == null) {
//add an empty initializer, fix test testBug89539 for xlc parser
setInitializer(ctorInit);
} else if (expression instanceof IASTInitializer) {
setInitializer((IASTInitializer) expression);
} else {
ctorInit.setExpression(expression);
ctorInit.setOffsetAndLength((ASTNode) expression);
setInitializer(ctorInit);
}
}
/**
* @see IASTImplicitNameOwner#getImplicitNames()
*/
@Override
public IASTImplicitName[] getImplicitNames() {
if (implicitNames == null) {
IBinding ctor = CPPSemantics.findImplicitlyCalledConstructor(this);
if (ctor == null) {
implicitNames = IASTImplicitName.EMPTY_NAME_ARRAY;
} else {
CPPASTImplicitName ctorName = new CPPASTImplicitName(ctor.getNameCharArray(), this);
ctorName.setBinding(ctor);
IASTName id = name.getLastName();
ctorName.setOffsetAndLength((ASTNode) id);
implicitNames = new IASTImplicitName[] { ctorName };
}
}
return implicitNames;
}
@Override
public IBinding[] findBindings(IASTName n, boolean isPrefix) {
return findBindings(n, isPrefix, null);
}
}