/*******************************************************************************
* Copyright (c) 2004, 2014 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)
* Bryan Wilkinson (QNX)
* Anton Leherbauer (Wind River Systems)
* Sergey Prigogin (Google)
*******************************************************************************/
package org.eclipse.cdt.internal.core.dom.parser.cpp;
import org.eclipse.cdt.core.dom.ast.ASTVisitor;
import org.eclipse.cdt.core.dom.ast.IASTCompletionContext;
import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
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.ICompositeType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTElaboratedTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPClassType;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPNamespace;
import org.eclipse.cdt.core.parser.util.ArrayUtil;
import org.eclipse.cdt.core.parser.util.CharArrayUtils;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPSemantics;
import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPVisitor;
/**
* Unqualified name, also base class for operator and conversion name.
*/
public class CPPASTName extends CPPASTNameBase implements ICPPASTCompletionContext {
public static final IASTName NOT_INITIALIZED= new CPPASTName(null);
private char[] name;
public CPPASTName(char[] name) {
this.name = name;
}
public CPPASTName() {
name = CharArrayUtils.EMPTY;
}
@Override
public CPPASTName copy() {
return copy(CopyStyle.withoutLocations);
}
@Override
public CPPASTName copy(CopyStyle style) {
CPPASTName copy = new CPPASTName(name == null ? null : name.clone());
return copy(copy, style);
}
@Override
protected IBinding createIntermediateBinding() {
return CPPVisitor.createBinding(this);
}
@Override
public IASTCompletionContext getCompletionContext() {
IASTNode node = getParent();
while (node != null) {
if (node instanceof IASTCompletionContext) {
return (IASTCompletionContext) node;
}
node = node.getParent();
}
if (getLength() > 0) {
return this;
}
return null;
}
@Override
public IBinding[] findBindings(IASTName n, boolean isPrefix, String[] namespaces) {
IASTNode parent = getParent();
if (parent instanceof ICPPASTElaboratedTypeSpecifier) {
ICPPASTElaboratedTypeSpecifier specifier = (ICPPASTElaboratedTypeSpecifier) parent;
int kind = specifier.getKind();
switch (kind) {
case ICompositeType.k_struct:
case ICompositeType.k_union:
case ICPPASTElaboratedTypeSpecifier.k_class:
break;
default:
return null;
}
IBinding[] bindings = CPPSemantics.findBindingsForContentAssist(n, isPrefix, namespaces);
return filterByElaboratedTypeSpecifier(kind, bindings);
} else if (parent instanceof IASTDeclarator) {
IBinding[] bindings = CPPSemantics.findBindingsForContentAssist(n, isPrefix, namespaces);
if (isPrefix) {
for (int i = 0; i < bindings.length; i++) {
IBinding binding = bindings[i];
if (!(binding instanceof ICPPNamespace) && !(binding instanceof ICPPClassType)) {
bindings[i] = null;
}
}
} else if (bindings.length == 0) {
// The lookup did not find the binding that is defined by this name.
bindings= new IBinding[] { n.resolveBinding() };
}
return ArrayUtil.removeNulls(IBinding.class, bindings);
}
return null;
}
private IBinding[] filterByElaboratedTypeSpecifier(int kind, IBinding[] bindings) {
for (int i = 0; i < bindings.length; i++) {
IBinding binding = bindings[i];
if (binding instanceof ICPPClassType) {
if (((ICPPClassType) binding).getKey() != kind)
bindings[i] = null;
} else if (!(binding instanceof ICPPNamespace)) {
bindings[i]= null;
}
}
return ArrayUtil.removeNulls(IBinding.class, bindings);
}
@Override
public char[] toCharArray() {
return name;
}
@Override
public final char[] getSimpleID() {
return name;
}
@Override
public final char[] getLookupKey() {
return name;
}
public void setName(char[] name) {
assertNotFrozen();
this.name = name;
}
@Override
public boolean accept(ASTVisitor action) {
if (action.shouldVisitNames) {
switch (action.visit(this)) {
case ASTVisitor.PROCESS_ABORT:
return false;
case ASTVisitor.PROCESS_SKIP:
return true;
default:
break;
}
}
if (action.shouldVisitNames) {
switch (action.leave(this)) {
case ASTVisitor.PROCESS_ABORT:
return false;
case ASTVisitor.PROCESS_SKIP:
return true;
default:
break;
}
}
return true;
}
@Override
public IBinding[] findBindings(IASTName n, boolean isPrefix) {
return findBindings(n, isPrefix, null);
}
}