| /* |
| * Copyright 2013 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.cfg; |
| |
| import com.google.gwt.core.ext.Generator; |
| import com.google.gwt.core.ext.GeneratorContext; |
| import com.google.gwt.core.ext.TreeLogger; |
| |
| import java.io.PrintWriter; |
| import java.util.Map; |
| |
| /** |
| * Generator used to generate a class unique to the current module which has a register() function |
| * which when invoked will register all currently known runtime rebind rule implementations with a |
| * global registry.<br /> |
| * |
| * The resulting class is expected to be invoked as part of per module bootstrapping and before |
| * anything that might depend on GWT.create() rebinding (including onModuleLoad() or gwtOnLoad() |
| * methods). |
| */ |
| public class RuntimeRebindRegistratorGenerator extends Generator { |
| |
| private static final String PACKAGE_PATH = "com.google.gwt.core.client"; |
| |
| /** |
| * The extension for all generated runtime rebind registrator classes. Is exposed publicly so |
| * others can filter using the extension. |
| */ |
| public static final String RUNTIME_REBIND_REGISTRATOR_SUFFIX = "RuntimeRebindRegistrator"; |
| |
| @Override |
| public String generate(TreeLogger logger, GeneratorContext context, String moduleName) { |
| Map<String, String> runtimeRebindRuleSourcesByName = |
| RuntimeRebindRuleGenerator.RUNTIME_REBIND_RULE_SOURCES_BY_NAME; |
| |
| // Creates a new class definition unique per module to avoid collision. |
| String typeName = |
| moduleName.replace(".", "_").replace("-", "_") + "_" + RUNTIME_REBIND_REGISTRATOR_SUFFIX; |
| PrintWriter out = context.tryCreate(logger, PACKAGE_PATH, typeName); |
| |
| if (out != null) { |
| out.println("package " + PACKAGE_PATH + ";"); |
| out.println("public class " + typeName + " {"); |
| |
| // Drop all of the runtime rebind rule class implementations in. |
| for (String runtimeRebindRuleSource : runtimeRebindRuleSourcesByName.values()) { |
| out.println(runtimeRebindRuleSource); |
| } |
| |
| out.println(" public static void register() {"); |
| if (!runtimeRebindRuleSourcesByName.isEmpty()) { |
| // Instantiates and registers each one. |
| for (String runtimeRebindRuleName : runtimeRebindRuleSourcesByName.keySet()) { |
| out.println(String.format( |
| " RuntimeRebinder.registerRuntimeRebindRule(new %s());", runtimeRebindRuleName)); |
| } |
| } else { |
| out.println(" // There are no runtime rebind rules for this module."); |
| } |
| out.println(" }"); |
| out.println("}"); |
| |
| context.commit(logger, out); |
| } else { |
| // Must have been a cache hit. |
| } |
| |
| return PACKAGE_PATH + "." + typeName; |
| } |
| } |