| /* |
| * 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.jjs.impl.codesplitter; |
| |
| import com.google.gwt.dev.jjs.ast.JDeclaredType; |
| import com.google.gwt.dev.jjs.ast.JField; |
| import com.google.gwt.dev.jjs.ast.JMethod; |
| import com.google.gwt.dev.jjs.impl.ControlFlowAnalyzer; |
| |
| /** |
| * A {@link LivenessPredicate} that bases liveness on a single |
| * {@link com.google.gwt.dev.jjs.impl.ControlFlowAnalyzer}. |
| */ |
| public class CfaLivenessPredicate implements LivenessPredicate { |
| private final ControlFlowAnalyzer cfa; |
| |
| public CfaLivenessPredicate(ControlFlowAnalyzer cfa) { |
| this.cfa = cfa; |
| } |
| |
| @Override |
| public boolean isLive(JDeclaredType type) { |
| return cfa.getInstantiatedTypes().contains(type); |
| } |
| |
| @Override |
| public boolean isLive(JField field) { |
| return cfa.getLiveFieldsAndMethods().contains(field) |
| || cfa.getFieldsWritten().contains(field); |
| } |
| |
| @Override |
| public boolean isLive(JMethod method) { |
| return cfa.getLiveFieldsAndMethods().contains(method); |
| } |
| |
| @Override |
| public boolean miscellaneousStatementsAreLive() { |
| return true; |
| } |
| } |