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[toc] / antlr4-cpp-runtime-4.9.2-source / runtime / src / LexerNoViableAltException.h

diff --git a/antlr4-cpp-runtime-4.9.2-source/runtime/src/LexerNoViableAltException.h b/antlr4-cpp-runtime-4.9.2-source/runtime/src/LexerNoViableAltException.h
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+/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
+ * Use of this file is governed by the BSD 3-clause license that
+ * can be found in the LICENSE.txt file in the project root.
+ */
+
+#pragma once
+
+#include "RecognitionException.h"
+#include "atn/ATNConfigSet.h"
+
+namespace antlr4 {
+
+  class ANTLR4CPP_PUBLIC LexerNoViableAltException : public RecognitionException {
+  public:
+    LexerNoViableAltException(Lexer *lexer, CharStream *input, size_t startIndex,
+                              atn::ATNConfigSet *deadEndConfigs);
+
+    virtual size_t getStartIndex();
+    virtual atn::ATNConfigSet* getDeadEndConfigs();
+    virtual std::string toString();
+
+  private:
+    /// Matching attempted at what input index?
+    const size_t _startIndex;
+
+    /// Which configurations did we try at input.index() that couldn't match input.LA(1)?
+    atn::ATNConfigSet *_deadEndConfigs;
+
+  };
+
+} // namespace antlr4