/*******************************************************************************
* Copyright (c) 2013, 2016 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.quickfix;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jdt.internal.corext.codemanipulation.StubUtility;
import org.eclipse.jdt.internal.corext.fix.CleanUpConstants;
import org.eclipse.jdt.internal.corext.template.java.CodeTemplateContextType;
import org.eclipse.jdt.ui.tests.core.Java18ProjectTestSetup;
import junit.framework.Test;
import junit.framework.TestSuite;
public class CleanUpTest18 extends CleanUpTestCase {
private static final Class<CleanUpTest18> THIS= CleanUpTest18.class;
public CleanUpTest18(String name) {
super(name);
}
public static Test suite() {
return setUpTest(new TestSuite(THIS));
}
public static Test setUpTest(Test test) {
return new Java18ProjectTestSetup(test);
}
@Override
protected void setUp() throws Exception {
super.setUp();
StubUtility.setCodeTemplate(CodeTemplateContextType.OVERRIDECOMMENT_ID, "", null);
}
@Override
protected IJavaProject getProject() {
return Java18ProjectTestSetup.getProject();
}
@Override
protected IClasspathEntry[] getDefaultClasspath() throws CoreException {
return Java18ProjectTestSetup.getDefaultClasspath();
}
public void testConvertToLambda01() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class E {\n");
buf.append(" void foo(){\n");
buf.append(" Runnable r = new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public void run() {\n");
buf.append(" System.out.println(\"do something\");\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class E {\n");
buf.append(" void foo(){\n");
buf.append(" Runnable r = () -> System.out.println(\"do something\");\n");
buf.append(" };\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToLambda02() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class E {\n");
buf.append(" void foo(){\n");
buf.append(" Runnable r1 = new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public void run() {\n");
buf.append(" System.out.println(\"do something\");\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" Runnable r2 = new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public void run() {\n");
buf.append(" System.out.println(\"do one thing\");\n");
buf.append(" System.out.println(\"do another thing\");\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class E {\n");
buf.append(" void foo(){\n");
buf.append(" Runnable r1 = () -> System.out.println(\"do something\");\n");
buf.append(" Runnable r2 = () -> {\n");
buf.append(" System.out.println(\"do one thing\");\n");
buf.append(" System.out.println(\"do another thing\");\n");
buf.append(" };\n");
buf.append(" };\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToLambda03() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test1;\n");
buf.append("import java.util.function.Supplier;\n");
buf.append("class E {\n");
buf.append(" Supplier<Supplier<String>> s= new Supplier<Supplier<String>>() {\n");
buf.append(" @Override\n");
buf.append(" public Supplier<String> get() {\n");
buf.append(" return new Supplier<String>() {\n");
buf.append(" @Override\n");
buf.append(" public String get() {\n");
buf.append(" return \"a\";\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test1;\n");
buf.append("import java.util.function.Supplier;\n");
buf.append("class E {\n");
buf.append(" Supplier<Supplier<String>> s= () -> () -> \"a\";\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToLambdaNestedWithImports() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("import java.util.concurrent.Callable;\n");
buf.append("import java.util.concurrent.Executors;\n");
buf.append("public class E {\n");
buf.append(" void foo() {\n");
buf.append(" new Thread(new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public void run() {\n");
buf.append(" Executors.newSingleThreadExecutor().submit(new Callable<String>() {\n");
buf.append(" @Override\n");
buf.append(" public String call() throws Exception {\n");
buf.append(" return \"hi\";\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("import java.util.concurrent.Executors;\n");
buf.append("public class E {\n");
buf.append(" void foo() {\n");
buf.append(" new Thread(() -> Executors.newSingleThreadExecutor().submit(() -> \"hi\"));\n");
buf.append(" }\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
// fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=434507#c5
public void testConvertToLambdaAmbiguous01() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("interface ISuper {\n");
buf.append(" void foo(FI1 fi1);\n");
buf.append("}\n");
buf.append("\n");
buf.append("interface ISub extends ISuper {\n");
buf.append(" void foo(FI2 fi2);\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI1 {\n");
buf.append(" void abc();\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI2 {\n");
buf.append(" void xyz();\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Test1 {\n");
buf.append(" private void test1() {\n");
buf.append(" f1().foo(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append("\n");
buf.append(" }\n");
buf.append(" \n");
buf.append(" private ISub f1() {\n");
buf.append(" return null;\n");
buf.append(" }\n");
buf.append("}\n");
buf.append("\n");
buf.append("abstract class Test2 implements ISub {\n");
buf.append(" private void test2() {\n");
buf.append(" foo(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Test3 {\n");
buf.append(" void foo(FI1 fi1) {}\n");
buf.append(" void foo(FI2 fi2) {}\n");
buf.append(" private void test3() {\n");
buf.append(" foo(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Outer {\n");
buf.append(" class Test4 {\n");
buf.append(" {\n");
buf.append(" bar(0, new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" void bar(int i, FI1 fi1) {}\n");
buf.append(" void bar(int s, FI2 fi2) {}\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("interface ISuper {\n");
buf.append(" void foo(FI1 fi1);\n");
buf.append("}\n");
buf.append("\n");
buf.append("interface ISub extends ISuper {\n");
buf.append(" void foo(FI2 fi2);\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI1 {\n");
buf.append(" void abc();\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI2 {\n");
buf.append(" void xyz();\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Test1 {\n");
buf.append(" private void test1() {\n");
buf.append(" f1().foo((FI1) () -> System.out.println());\n");
buf.append("\n");
buf.append(" }\n");
buf.append(" \n");
buf.append(" private ISub f1() {\n");
buf.append(" return null;\n");
buf.append(" }\n");
buf.append("}\n");
buf.append("\n");
buf.append("abstract class Test2 implements ISub {\n");
buf.append(" private void test2() {\n");
buf.append(" foo((FI1) () -> System.out.println());\n");
buf.append(" }\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Test3 {\n");
buf.append(" void foo(FI1 fi1) {}\n");
buf.append(" void foo(FI2 fi2) {}\n");
buf.append(" private void test3() {\n");
buf.append(" foo((FI1) () -> System.out.println());\n");
buf.append(" }\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Outer {\n");
buf.append(" class Test4 {\n");
buf.append(" {\n");
buf.append(" bar(0, (FI1) () -> {\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" void bar(int i, FI1 fi1) {}\n");
buf.append(" void bar(int s, FI2 fi2) {}\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
// fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=434507#c5
public void testConvertToLambdaAmbiguous02() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI1 {\n");
buf.append(" void abc();\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI2 {\n");
buf.append(" void xyz();\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Outer {\n");
buf.append(" void outer(FI1 fi1) {}\n");
buf.append("}\n");
buf.append("class OuterSub extends Outer {\n");
buf.append(" OuterSub() {\n");
buf.append(" super.outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" class Test1 {\n");
buf.append(" private void test1() {\n");
buf.append(" OuterSub.super.outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" OuterSub.this.outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" @Override\n");
buf.append(" void outer(FI1 fi1) {}\n");
buf.append(" void outer(FI2 fi2) {}\n");
buf.append("}\n");
buf.append("\n");
buf.append("class OuterSub2 extends OuterSub {\n");
buf.append(" OuterSub2() {\n");
buf.append(" super.outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" class Test2 {\n");
buf.append(" private void test2() {\n");
buf.append(" OuterSub2.super.outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" OuterSub2.this.outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" outer(new FI1() {\n");
buf.append(" @Override\n");
buf.append(" public void abc() {\n");
buf.append(" System.out.println();\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI1 {\n");
buf.append(" void abc();\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface\n");
buf.append("interface FI2 {\n");
buf.append(" void xyz();\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Outer {\n");
buf.append(" void outer(FI1 fi1) {}\n");
buf.append("}\n");
buf.append("class OuterSub extends Outer {\n");
buf.append(" OuterSub() {\n");
buf.append(" super.outer(() -> System.out.println());\n");
buf.append(" }\n");
buf.append(" class Test1 {\n");
buf.append(" private void test1() {\n");
buf.append(" OuterSub.super.outer(() -> System.out.println());\n");
buf.append(" OuterSub.this.outer((FI1) () -> System.out.println());\n");
buf.append(" outer((FI1) () -> System.out.println());\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" @Override\n");
buf.append(" void outer(FI1 fi1) {}\n");
buf.append(" void outer(FI2 fi2) {}\n");
buf.append("}\n");
buf.append("\n");
buf.append("class OuterSub2 extends OuterSub {\n");
buf.append(" OuterSub2() {\n");
buf.append(" super.outer((FI1) () -> System.out.println());\n");
buf.append(" }\n");
buf.append(" class Test2 {\n");
buf.append(" private void test2() {\n");
buf.append(" OuterSub2.super.outer((FI1) () -> System.out.println());\n");
buf.append(" OuterSub2.this.outer((FI1) () -> System.out.println());\n");
buf.append(" outer((FI1) () -> System.out.println());\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
// fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=434507#c2
public void testConvertToLambdaAmbiguous03() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public interface E {\n");
buf.append(" default void m() {\n");
buf.append(" bar(0, new FI() {\n");
buf.append(" @Override\n");
buf.append(" public int foo(int x) {\n");
buf.append(" return x++;\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" baz(0, new ZI() {\n");
buf.append(" @Override\n");
buf.append(" public int zoo() {\n");
buf.append(" return 1;\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append("\n");
buf.append(" void bar(int i, FI fi);\n");
buf.append(" void bar(int i, FV fv);\n");
buf.append("\n");
buf.append(" void baz(int i, ZI zi);\n");
buf.append(" void baz(int i, ZV zv);\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface interface FI { int foo(int a); }\n");
buf.append("@FunctionalInterface interface FV { void foo(int a); }\n");
buf.append("\n");
buf.append("@FunctionalInterface interface ZI { int zoo(); }\n");
buf.append("@FunctionalInterface interface ZV { void zoo(); }\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public interface E {\n");
buf.append(" default void m() {\n");
buf.append(" bar(0, (FI) x -> x++);\n");
buf.append(" baz(0, () -> 1);\n");
buf.append(" }\n");
buf.append("\n");
buf.append(" void bar(int i, FI fi);\n");
buf.append(" void bar(int i, FV fv);\n");
buf.append("\n");
buf.append(" void baz(int i, ZI zi);\n");
buf.append(" void baz(int i, ZV zv);\n");
buf.append("}\n");
buf.append("\n");
buf.append("@FunctionalInterface interface FI { int foo(int a); }\n");
buf.append("@FunctionalInterface interface FV { void foo(int a); }\n");
buf.append("\n");
buf.append("@FunctionalInterface interface ZI { int zoo(); }\n");
buf.append("@FunctionalInterface interface ZV { void zoo(); }\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_LAMBDA);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToLambdaConflictingNames() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test1;\n");
buf.append("\n");
buf.append("interface FI {\n");
buf.append(" void run(int x);\n");
buf.append("}\n");
buf.append("\n");
buf.append("public class Test {\n");
buf.append(" {\n");
buf.append(" int e;\n");
buf.append(" FI fi = new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e) {\n");
buf.append(" class C1 {\n");
buf.append(" void init1() {\n");
buf.append(" m(new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e) {\n");
buf.append(" FI fi = new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e) {\n");
buf.append(" FI fi = new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e) {\n");
buf.append(" return;\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append("\n");
buf.append(" void init2() {\n");
buf.append(" m(new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e) {\n");
buf.append(" new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e3) {\n");
buf.append(" FI fi = new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e) {\n");
buf.append(" return;\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append("\n");
buf.append(" void m(FI fi) {\n");
buf.append(" };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("Test.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test1;\n");
buf.append("\n");
buf.append("interface FI {\n");
buf.append(" void run(int x);\n");
buf.append("}\n");
buf.append("\n");
buf.append("public class Test {\n");
buf.append(" {\n");
buf.append(" int e;\n");
buf.append(" FI fi = e4 -> {\n");
buf.append(" class C1 {\n");
buf.append(" void init1() {\n");
buf.append(" m(e3 -> {\n");
buf.append(" FI fi2 = e2 -> {\n");
buf.append(" FI fi1 = e1 -> {\n");
buf.append(" return;\n");
buf.append(" };\n");
buf.append(" };\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append("\n");
buf.append(" void init2() {\n");
buf.append(" m(e2 -> new FI() {\n");
buf.append(" @Override\n");
buf.append(" public void run(int e3) {\n");
buf.append(" FI fi = e1 -> {\n");
buf.append(" return;\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" }\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" }\n");
buf.append("\n");
buf.append(" void m(FI fi) {\n");
buf.append(" };\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
}
public void testConvertToLambdaWithMethodAnnotations() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class C1 {\n");
buf.append(" Runnable r1 = new Runnable() {\n");
buf.append(" @Override @A @Deprecated\n");
buf.append(" public void run() {\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" Runnable r2 = new Runnable() {\n");
buf.append(" @Override @Deprecated\n");
buf.append(" public void run() {\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append("}\n");
buf.append("@interface A {}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("C1.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class C1 {\n");
buf.append(" Runnable r1 = new Runnable() {\n");
buf.append(" @Override @A @Deprecated\n");
buf.append(" public void run() {\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" Runnable r2 = () -> {\n");
buf.append(" };\n");
buf.append("}\n");
buf.append("@interface A {}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
}
public void testConvertToAnonymousWithWildcards() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("import java.util.*;\n");
buf.append("public class E {\n");
buf.append(" void foo(Integer[] ints){\n");
buf.append(" Arrays.sort(ints, (i1, i2) -> i1 - i2);\n");
buf.append(" Comparator<?> cw = (w1, w2) -> 0;\n");
buf.append(" Comparator cr = (r1, r2) -> 0;\n");
buf.append(" Comparator<? extends Number> ce = (n1, n2) -> -0;\n");
buf.append(" };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("E.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("import java.util.*;\n");
buf.append("public class E {\n");
buf.append(" void foo(Integer[] ints){\n");
buf.append(" Arrays.sort(ints, new Comparator<Integer>() {\n");
buf.append(" @Override\n");
buf.append(" public int compare(Integer i1, Integer i2) {\n");
buf.append(" return i1 - i2;\n");
buf.append(" }\n");
buf.append(" });\n");
buf.append(" Comparator<?> cw = new Comparator<Object>() {\n");
buf.append(" @Override\n");
buf.append(" public int compare(Object w1, Object w2) {\n");
buf.append(" return 0;\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" Comparator cr = new Comparator() {\n");
buf.append(" @Override\n");
buf.append(" public int compare(Object r1, Object r2) {\n");
buf.append(" return 0;\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" Comparator<? extends Number> ce = new Comparator<Number>() {\n");
buf.append(" @Override\n");
buf.append(" public int compare(Number n1, Number n2) {\n");
buf.append(" return -0;\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" };\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
enable(CleanUpConstants.USE_LAMBDA);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToAnonymousWithWildcards1() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("interface I<M> {\n");
buf.append(" M run(M x);\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Test {\n");
buf.append(" I<?> li = s -> null;\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("Test.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("interface I<M> {\n");
buf.append(" M run(M x);\n");
buf.append("}\n");
buf.append("\n");
buf.append("class Test {\n");
buf.append(" I<?> li = new I<Object>() {\n");
buf.append(" @Override\n");
buf.append(" public Object run(Object s) {\n");
buf.append(" return null;\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
enable(CleanUpConstants.USE_LAMBDA);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToAnonymousWithJoinedSAM() throws Exception {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=428526#c1 and #c6
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("interface Foo<T, N extends Number> {\n");
buf.append(" void m(T t);\n");
buf.append(" void m(N n);\n");
buf.append("}\n");
buf.append("interface Baz extends Foo<Integer, Integer> {}\n");
buf.append("class Test {\n");
buf.append(" Baz baz = x -> { return; };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("Test.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("interface Foo<T, N extends Number> {\n");
buf.append(" void m(T t);\n");
buf.append(" void m(N n);\n");
buf.append("}\n");
buf.append("interface Baz extends Foo<Integer, Integer> {}\n");
buf.append("class Test {\n");
buf.append(" Baz baz = new Baz() {\n");
buf.append(" @Override\n");
buf.append(" public void m(Integer x) { return; }\n");
buf.append(" };\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
disable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
enable(CleanUpConstants.USE_LAMBDA);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToLambdaWithNonFunctionalTargetType() throws Exception {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=468457
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("public class Snippet {\n");
buf.append(" void test(Interface context) {\n");
buf.append(" context.set(\"bar\", new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public void run() {}\n");
buf.append(" });\n");
buf.append(" \n");
buf.append(" } \n");
buf.append("}\n");
buf.append("\n");
buf.append("interface Interface {\n");
buf.append(" public void set(String name, Object value);\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu1= pack1.createCompilationUnit("Snippet.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
buf= new StringBuffer();
buf.append("package test;\n");
buf.append("\n");
buf.append("public class Snippet {\n");
buf.append(" void test(Interface context) {\n");
buf.append(" context.set(\"bar\", (Runnable) () -> {});\n");
buf.append(" \n");
buf.append(" } \n");
buf.append("}\n");
buf.append("\n");
buf.append("interface Interface {\n");
buf.append(" public void set(String name, Object value);\n");
buf.append("}\n");
String expected1= buf.toString();
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { expected1 });
enable(CleanUpConstants.USE_ANONYMOUS_CLASS_CREATION);
disable(CleanUpConstants.USE_LAMBDA);
assertRefactoringResultAsExpected(new ICompilationUnit[] { cu1 }, new String[] { original });
}
public void testConvertToLambdaWithSynchronizedOrStrictfp() throws Exception {
IPackageFragment pack1= fSourceFolder.createPackageFragment("test", false, null);
StringBuffer buf= new StringBuffer();
buf.append("package test;\n");
buf.append("public class C1 {\n");
buf.append(" Runnable run1 = new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public synchronized void run() {\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append(" Runnable run2 = new Runnable() {\n");
buf.append(" @Override\n");
buf.append(" public strictfp void run() {\n");
buf.append(" }\n");
buf.append(" };\n");
buf.append("}\n");
String original= buf.toString();
ICompilationUnit cu= pack1.createCompilationUnit("C1.java", original, false, null);
enable(CleanUpConstants.CONVERT_FUNCTIONAL_INTERFACES);
enable(CleanUpConstants.USE_LAMBDA);
assertRefactoringHasNoChange(new ICompilationUnit[] { cu });
}
}