/*******************************************************************************
* Copyright (c) 2009 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 Corporation - initial API and implementation
* Zend Technologies
*******************************************************************************/
package org.eclipse.php.internal.core.codeassist.strategies;
import org.eclipse.dltk.core.IType;
import org.eclipse.dltk.core.ITypeHierarchy;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.php.core.codeassist.ICompletionContext;
import org.eclipse.php.core.codeassist.IElementFilter;
import org.eclipse.php.core.compiler.PHPFlags;
import org.eclipse.php.core.PHPVersion;
import org.eclipse.php.internal.core.codeassist.contexts.AbstractCompletionContext;
import org.eclipse.php.internal.core.codeassist.contexts.GlobalMethodStatementContext;
import org.eclipse.php.internal.core.language.keywords.PHPKeywords;
import org.eclipse.php.internal.core.language.keywords.PHPKeywords.KeywordData;
/**
* This strategy completes keywords that can be shown in a method body
* completion context
*
* @author vadim.p
*/
public class MethodKeywordStrategy extends KeywordsStrategy {
/**
* @param context
* @param elementFilter
*/
public MethodKeywordStrategy(ICompletionContext context, IElementFilter elementFilter) {
super(context, elementFilter);
}
/**
* @param context
*/
public MethodKeywordStrategy(ICompletionContext context) {
super(context);
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.php.internal.core.codeassist.strategies.KeywordsStrategy#
* filterKeyword
* (org.eclipse.php.internal.core.language.keywords.PHPKeywords.KeywordData)
*/
@Override
protected boolean filterKeyword(KeywordData keyword) {
// if the class does not have parent
if ((keyword.context & PHPKeywords.METHOD_BODY) != 0 && isParent(keyword)) {
ICompletionContext context = getContext();
if (context instanceof GlobalMethodStatementContext) {
GlobalMethodStatementContext globalContext = (GlobalMethodStatementContext) context;
IType type = globalContext.getEnclosingType();
try {
if (type != null && PHPFlags.isClass(type.getFlags())) {
ITypeHierarchy hierarchy = getCompanion().getSuperTypeHierarchy(type, null);
IType[] superTypes = hierarchy.getAllSupertypes(type);
for (IType superType : superTypes) {
if (PHPFlags.isClass(superType.getFlags())) {
return false;
}
}
}
} catch (ModelException e) {
}
return true;
}
}
return (keyword.context & PHPKeywords.METHOD_BODY) == 0;
}
protected boolean isParent(KeywordData keyword) {
String name = keyword.name;
if (PHPVersion.PHP5_4.isLessThan(((AbstractCompletionContext) getContext()).getPHPVersion())) {
name = name.toLowerCase();
}
return name.equals("parent"); //$NON-NLS-1$
}
}