| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.dev; |
| |
| import com.google.gwt.core.ext.Generator; |
| import com.google.gwt.core.ext.Generator.RunsLocal; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.thirdparty.guava.common.collect.Lists; |
| |
| import java.io.PrintWriter; |
| import java.util.LinkedList; |
| |
| /** |
| * A Generator whose output is unstable and that contains nested types that reference some external |
| * type. |
| * <p> |
| * Makes it possible to test what how much Generator output is recreated when a referenced external |
| * type is modified. |
| */ |
| @RunsLocal |
| public class UnstableNestedAnonymousGenerator extends Generator { |
| |
| /** |
| * Indicates which version of Generator output should be created. |
| */ |
| public enum OutputVersion { |
| A, B |
| } |
| |
| public static LinkedList<OutputVersion> outputVersionOrder = Lists.newLinkedList(); |
| |
| @Override |
| public String generate(TreeLogger logger, GeneratorContext context, String typeName) |
| throws UnableToCompleteException { |
| PrintWriter pw = context.tryCreate(logger, "com.foo", "NestedAnonymousClasses"); |
| if (pw != null) { |
| OutputVersion outputVersion = outputVersionOrder.removeFirst(); |
| |
| pw.println("package com.foo;"); |
| pw.println("import java.lang.Runnable;"); |
| pw.println("public class NestedAnonymousClasses {"); |
| if (outputVersion == OutputVersion.A) { |
| insertClassDefinitionOne(pw); |
| insertClassDefinitionTwo(pw); |
| } else { |
| insertClassDefinitionTwo(pw); |
| insertClassDefinitionOne(pw); |
| } |
| pw.println(" public NestedAnonymousClasses() {run();}"); |
| pw.println(" void run() {"); |
| pw.println(" new Runnable() {"); |
| pw.println(" public void run() {"); |
| pw.println(" new Runnable() {"); |
| pw.println(" public void run() {"); |
| if (outputVersion == OutputVersion.A) { |
| pw.println("ClassOne classOne = new ClassOne();"); |
| pw.println("ClassTwo classTwo = new ClassTwo();"); |
| } else { |
| pw.println("ClassTwo classTwo = new ClassTwo();"); |
| pw.println("ClassOne classOne = new ClassOne();"); |
| } |
| pw.println(" }"); |
| pw.println(" }.run();"); |
| pw.println(" }"); |
| pw.println(" }.run();"); |
| pw.println(" }"); |
| pw.println("}"); |
| pw.flush(); |
| context.commit(logger, pw); |
| } |
| return "com.foo.NestedAnonymousClasses"; |
| } |
| |
| private void insertClassDefinitionOne(PrintWriter pw) { |
| pw.println("class ClassOne {"); |
| pw.println(" Foo foo = new Foo();"); |
| pw.println("};"); |
| } |
| |
| private void insertClassDefinitionTwo(PrintWriter pw) { |
| pw.println("class ClassTwo {"); |
| pw.println(" Foo foo = new Foo();"); |
| pw.println("};"); |
| } |
| } |