add antlr

lib/antlr4/include/atn/LexerATNConfig.h

@@ -0,0 +1,44 @@
+/* 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 "atn/ATNConfig.h"
+
+namespace antlr4 {
+namespace atn {
+
+  class ANTLR4CPP_PUBLIC LexerATNConfig : public ATNConfig {
+  public:
+    LexerATNConfig(ATNState *state, int alt, Ref<PredictionContext> const& context);
+    LexerATNConfig(ATNState *state, int alt, Ref<PredictionContext> const& context, Ref<LexerActionExecutor> const& lexerActionExecutor);
+
+    LexerATNConfig(Ref<LexerATNConfig> const& c, ATNState *state);
+    LexerATNConfig(Ref<LexerATNConfig> const& c, ATNState *state, Ref<LexerActionExecutor> const& lexerActionExecutor);
+    LexerATNConfig(Ref<LexerATNConfig> const& c, ATNState *state, Ref<PredictionContext> const& context);
+
+    /**
+     * Gets the {@link LexerActionExecutor} capable of executing the embedded
+     * action(s) for the current configuration.
+     */
+    Ref<LexerActionExecutor> getLexerActionExecutor() const;
+    bool hasPassedThroughNonGreedyDecision();
+
+    virtual size_t hashCode() const override;
+
+    bool operator == (const LexerATNConfig& other) const;
+
+  private:
+    /**
+     * This is the backing field for {@link #getLexerActionExecutor}.
+     */
+    const Ref<LexerActionExecutor> _lexerActionExecutor;
+    const bool _passedThroughNonGreedyDecision;
+
+    static bool checkNonGreedyDecision(Ref<LexerATNConfig> const& source, ATNState *target);
+  };
+
+} // namespace atn
+} // namespace antlr4