1 /* 2 * [The "BSD license"] 3 * Copyright (c) 2012 Terence Parr 4 * Copyright (c) 2012 Sam Harwell 5 * Copyright (c) 2017 Egbert Voigt 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 module antlr.v4.runtime.ProxyErrorListener; 33 34 import antlr.v4.runtime.ANTLRErrorListener; 35 import antlr.v4.runtime.InterfaceRecognizer; 36 import antlr.v4.runtime.RecognitionException; 37 import antlr.v4.runtime.Token; 38 import antlr.v4.runtime.InterfaceParser; 39 import antlr.v4.runtime.dfa.DFA; 40 import antlr.v4.runtime.atn.ATNConfigSet; 41 import antlr.v4.runtime.misc.BitSet; 42 43 // Class Template ProxyErrorListener 44 /** 45 * @uml 46 * This implementation of {@link ANTLRErrorListener} dispatches all calls to a 47 * collection of delegate listeners. This reduces the effort required to support multiple 48 * listeners. 49 */ 50 class ProxyErrorListener(U, V) : ANTLRErrorListener!(U, V) 51 { 52 53 public ANTLRErrorListener!(U,V)[] delegates; 54 55 public this(ANTLRErrorListener!(U,V)[] delegates) 56 { 57 if (delegates is null) { 58 assert(0, "Null pointer exception delegates"); 59 } 60 this.delegates = delegates; 61 } 62 63 public void syntaxError(InterfaceRecognizer recognizer, Object offendingSymbol, int line, 64 int charPositionInLine, string msg, RecognitionException e) 65 { 66 foreach (listener; delegates) { 67 listener.syntaxError(recognizer, offendingSymbol, line, charPositionInLine, msg, e); 68 } 69 } 70 71 public void reportAmbiguity(InterfaceParser recognizer, DFA dfa, int startIndex, int stopIndex, bool exact, BitSet ambigAlts, 72 ATNConfigSet configs) 73 { 74 foreach (listener; delegates) { 75 listener.reportAmbiguity(recognizer, dfa, startIndex, stopIndex, exact, ambigAlts, configs); 76 } 77 } 78 79 public void reportAttemptingFullContext(InterfaceParser recognizer, DFA dfa, int startIndex, int stopIndex, 80 BitSet conflictingAlts, ATNConfigSet configs) 81 { 82 foreach (listener; delegates) { 83 listener.reportAttemptingFullContext(recognizer, dfa, startIndex, stopIndex, conflictingAlts, configs); 84 } 85 } 86 87 public void reportContextSensitivity(InterfaceParser recognizer, DFA dfa, int startIndex, int stopIndex, 88 int prediction, ATNConfigSet configs) 89 { 90 foreach (listener; delegates) { 91 listener.reportContextSensitivity(recognizer, dfa, startIndex, stopIndex, prediction, configs); 92 } 93 } 94 95 }