/*******************************************************************************
* 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 java.util.List;
import org.eclipse.dltk.ast.declarations.Argument;
import org.eclipse.dltk.ast.declarations.Declaration;
import org.eclipse.dltk.ast.declarations.MethodDeclaration;
import org.eclipse.dltk.ast.declarations.ModuleDeclaration;
import org.eclipse.dltk.core.CompletionRequestor;
import org.eclipse.dltk.core.ISourceModule;
import org.eclipse.dltk.core.SourceParserUtil;
import org.eclipse.dltk.internal.core.ModelElement;
import org.eclipse.dltk.internal.core.SourceRange;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.php.core.codeassist.ICompletionContext;
import org.eclipse.php.core.codeassist.IElementFilter;
import org.eclipse.php.internal.core.codeassist.ICompletionReporter;
import org.eclipse.php.internal.core.codeassist.contexts.AbstractCompletionContext;
import org.eclipse.php.internal.core.compiler.ast.parser.ASTUtils;
import org.eclipse.php.internal.core.typeinference.FakeField;
/**
* This strategy completes variable names taken from function parameters list.
* @author michael
*/
public class FunctionArgumentsStrategy extends AbstractCompletionStrategy {
public FunctionArgumentsStrategy(ICompletionContext context, IElementFilter elementFilter) {
super(context, elementFilter);
}
public FunctionArgumentsStrategy(ICompletionContext context) {
super(context);
}
@SuppressWarnings("unchecked")
public void apply(ICompletionReporter reporter) throws BadLocationException {
AbstractCompletionContext abstractContext = (AbstractCompletionContext) getContext();
CompletionRequestor requestor = abstractContext.getCompletionRequestor();
int offset = abstractContext.getOffset();
// find function arguments
ISourceModule sourceModule = abstractContext.getSourceModule();
ModuleDeclaration moduleDeclaration = SourceParserUtil.getModuleDeclaration(sourceModule, null);
Declaration declaration = ASTUtils.findDeclarationAfterPHPdoc(moduleDeclaration, offset);
if (declaration instanceof MethodDeclaration) {
String prefix = abstractContext.getPrefix();
SourceRange replaceRange = getReplacementRange(abstractContext);
String suffix = ""; //$NON-NLS-1$
List<Argument> arguments = ((MethodDeclaration) declaration).getArguments();
for (Argument arg : arguments) {
String argumentVar = arg.getName();
if (argumentVar.startsWith(prefix)) {
if (!requestor.isContextInformationMode() || argumentVar.length() == prefix.length()) {
reporter.reportField(new FakeField((ModelElement) sourceModule, argumentVar, 0, 0), suffix, replaceRange, false);
}
}
}
}
}
}