1 /* 2 * [The "BSD license"] 3 * Copyright (c) 2010 Terence Parr 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 package org.antlr.codegen; 29 30 import org.antlr.Tool; 31 import org.antlr.tool.Grammar; 32 import org.antlr.tool.Rule; 33 import org.stringtemplate.v4.ST; 34 35 import java.util.Set; 36 37 public class JavaTarget extends Target { 38 @Override useBaseTemplatesForSynPredFragments()39 public boolean useBaseTemplatesForSynPredFragments() { 40 return false; 41 } 42 chooseWhereCyclicDFAsGo(Tool tool, CodeGenerator generator, Grammar grammar, ST recognizerST, ST cyclicDFAST)43 protected ST chooseWhereCyclicDFAsGo(Tool tool, 44 CodeGenerator generator, 45 Grammar grammar, 46 ST recognizerST, 47 ST cyclicDFAST) 48 { 49 return recognizerST; 50 } 51 52 @Override performGrammarAnalysis(CodeGenerator generator, Grammar grammar)53 protected void performGrammarAnalysis(CodeGenerator generator, Grammar grammar) { 54 super.performGrammarAnalysis(generator, grammar); 55 for (Rule rule : grammar.getRules()) { 56 rule.throwsSpec.add("RecognitionException"); 57 } 58 Set<? extends Rule> delegatedRules = grammar.getDelegatedRules(); 59 if ( delegatedRules!=null ) { 60 for (Rule rule : delegatedRules) { 61 rule.throwsSpec.add("RecognitionException"); 62 } 63 } 64 } 65 } 66