/*******************************************************************************
* Copyright (c) 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.ui.tests.core;
import java.util.Hashtable;
import junit.framework.Test;
import org.eclipse.jdt.testplugin.JavaProjectHelper;
import org.eclipse.jdt.testplugin.TestOptions;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.ILocalVariable;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.core.IPackageFragmentRoot;
import org.eclipse.jdt.core.IType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.ITypeBinding;
import org.eclipse.jdt.core.dom.LambdaExpression;
import org.eclipse.jdt.core.dom.NodeFinder;
import org.eclipse.jdt.core.dom.TypeDeclaration;
public class MethodOverrideTest18 extends MethodOverrideTest {
private static final Class<MethodOverrideTest18> THIS= MethodOverrideTest18.class;
public static Test suite() {
return setUpTest(new NoSuperTestsSuite(THIS));
}
public static Test setUpTest(Test test) {
return new Java18ProjectTestSetup(test);
}
private IJavaProject fJProject1;
private IPackageFragmentRoot fSrc;
public MethodOverrideTest18(String name) {
super(name);
}
@Override
protected void setUp() throws Exception {
fJProject1= Java18ProjectTestSetup.getProject();
fSrc= JavaProjectHelper.addSourceContainer(fJProject1, "src");
Hashtable<String, String> options= TestOptions.getDefaultOptions();
JavaCore.setOptions(options);
}
@Override
protected void tearDown() throws Exception {
JavaProjectHelper.clear(fJProject1, Java18ProjectTestSetup.getDefaultClasspath());
}
public void testOverrideLambda1() throws Exception {
IPackageFragment pack1= fSrc.createPackageFragment("test1", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test1;\n");
buf.append("public interface MyFunction<T, R> {\n");
buf.append(" R apply(T t);\n");
buf.append(" default <V> MyFunction<V, R> compose(MyFunction<? super V, ? extends T> before) {\n");
buf.append(" return (V v) -> apply(before.apply(v));\n");
buf.append(" }\n");
buf.append("}\n");
ICompilationUnit cu= pack1.createCompilationUnit("MyFunction.java", buf.toString(), false, null);
CompilationUnit root= assertNoCompilationError(cu);
IType focusType= cu.getTypes()[0];
int vStart= buf.indexOf("v))");
ILocalVariable v= (ILocalVariable) cu.codeSelect(vStart, 1)[0];
IType overridingType= v.getDeclaringMember().getDeclaringType();
LambdaExpression lambda= (LambdaExpression) NodeFinder.perform(root, buf.indexOf("->"), 2);
ITypeBinding overridingTypeBinding= lambda.resolveTypeBinding();
IType overriddenType= focusType;
ITypeBinding overriddenTypeBinding= ((TypeDeclaration) root.types().get(0)).resolveBinding();
doOverrideTests(root, focusType, overridingType, overridingTypeBinding, overriddenType, overriddenTypeBinding);
}
}