/*******************************************************************************
* 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.*;
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.core.compiler.PHPFlags;
import org.eclipse.php.internal.core.PHPCorePlugin;
import org.eclipse.php.internal.core.PHPVersion;
import org.eclipse.php.internal.core.codeassist.ICompletionReporter;
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.PHPVariables;
import org.eclipse.php.internal.core.typeinference.FakeField;
import org.eclipse.php.internal.core.typeinference.PHPModelUtils;
/**
* This strategy completes global variables including constants
*
* @author michael
*/
public class LocalMethodVariablesStrategy extends GlobalElementStrategy {
private static final String THIS = "$this"; //$NON-NLS-1$
public LocalMethodVariablesStrategy(ICompletionContext context,
IElementFilter elementFilter) {
super(context, elementFilter);
}
public LocalMethodVariablesStrategy(ICompletionContext context) {
super(context);
}
public void apply(ICompletionReporter reporter)
throws BadLocationException, ModelException {
ICompletionContext context = getContext();
if (!(context instanceof GlobalMethodStatementContext)) {
return;
}
GlobalMethodStatementContext concreteContext = (GlobalMethodStatementContext) context;
CompletionRequestor requestor = concreteContext
.getCompletionRequestor();
String prefix = concreteContext.getPrefix();
String suffix = getSuffix(concreteContext);
SourceRange replaceRange = null;
if (suffix.equals("")) { //$NON-NLS-1$
replaceRange = getReplacementRange(concreteContext);
} else {
replaceRange = getReplacementRangeWithBraces(concreteContext);
}
replaceRange = getReplacementRange(context);
IMethod enclosingMethod = concreteContext.getEnclosingMethod();
// complete class variable: $this
if (!PHPFlags.isStatic(enclosingMethod.getFlags())) {
IType declaringType = enclosingMethod.getDeclaringType();
if (declaringType != null) {
if (THIS.startsWith(prefix)) { //$NON-NLS-1$
reporter.reportField(new FakeField(
(ModelElement) declaringType, THIS, 0, 0), suffix,
replaceRange, false,
ICompletionReporter.RELEVANCE_ADJUST); //NON-NLS-1 //$NON-NLS-2$
}
} else {
if (enclosingMethod.getParent() instanceof IField
&& concreteContext.getPhpVersion().isGreaterThan(
PHPVersion.PHP5_3)) {
IMethod method = (IMethod) enclosingMethod.getParent()
.getAncestor(IModelElement.METHOD);
if (method != null) {
declaringType = method.getDeclaringType();
if (declaringType != null && THIS.startsWith(prefix)) { //$NON-NLS-1$
reporter.reportField(new FakeField(
(ModelElement) declaringType, THIS, 0, 0),
suffix, replaceRange, false,
ICompletionReporter.RELEVANCE_ADJUST); //NON-NLS-1 //$NON-NLS-2$
}
}
}
}
}
for (IModelElement element : PHPModelUtils.getMethodFields(
enclosingMethod, prefix, requestor.isContextInformationMode(),
null)) {
reporter.reportField((IField) element, "", replaceRange, false, //$NON-NLS-1$
ICompletionReporter.RELEVANCE_ADJUST);
}
PHPVersion phpVersion = concreteContext.getPhpVersion();
for (String variable : PHPVariables.getVariables(phpVersion)) {
if (variable.startsWith(prefix)) {
if (!requestor.isContextInformationMode()
|| variable.length() == prefix.length()) {
reporter.reportField(new FakeField(
(ModelElement) concreteContext.getSourceModule(),
variable, 0, 0), "", replaceRange, false, //$NON-NLS-1$
-ICompletionReporter.RELEVANCE_ADJUST); // NON-NLS-1
}
}
}
}
public String getSuffix(AbstractCompletionContext abstractContext) {
String nextWord = null;
try {
nextWord = abstractContext.getNextWord();
} catch (BadLocationException e) {
PHPCorePlugin.log(e);
}
return "->".equals(nextWord) ? "" : "->"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}
}