| /* |
| * Copyright 2007 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.javac.typemodel; |
| |
| import com.google.gwt.core.ext.TreeLogger; |
| import com.google.gwt.core.ext.UnableToCompleteException; |
| import com.google.gwt.dev.cfg.ModuleDef; |
| import com.google.gwt.dev.cfg.ModuleDefLoader; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Helper for loading modules from the classpath. |
| */ |
| class ModuleContext { |
| private static final Map<String, TypeOracle> typeOracleMap = new HashMap<String, TypeOracle>(); |
| |
| private static TypeOracle getTypeOracleFor(TreeLogger logger, |
| String moduleName) throws UnableToCompleteException { |
| TypeOracle oracle; |
| synchronized (typeOracleMap) { |
| oracle = typeOracleMap.get(moduleName); |
| if (oracle == null) { |
| ModuleDef moduleDef = ModuleDefLoader.loadFromClassPath(logger, |
| moduleName); |
| oracle = moduleDef.getCompilationState(logger).getTypeOracle(); |
| typeOracleMap.put(moduleName, oracle); |
| } |
| } |
| return oracle; |
| } |
| |
| private final TypeOracle oracle; |
| |
| ModuleContext(TreeLogger logger, String moduleName) |
| throws UnableToCompleteException { |
| this.oracle = getTypeOracleFor(logger, moduleName); |
| } |
| |
| public TypeOracle getOracle() { |
| return oracle; |
| } |
| } |