build(antlr): 引入第三方 ANTLR4 runtime/tool 并接入构建

third_party/antlr4-runtime-4.13.2/runtime/src/tree/TerminalNodeImpl.h

@@ -0,0 +1,32 @@
+/* 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 "tree/TerminalNode.h"
+
+namespace antlr4 {
+namespace tree {
+
+  class ANTLR4CPP_PUBLIC TerminalNodeImpl : public TerminalNode {
+  public:
+    Token *symbol;
+
+    explicit TerminalNodeImpl(Token *symbol) : TerminalNode(ParseTreeType::TERMINAL), symbol(symbol) {}
+
+    virtual Token* getSymbol() const override;
+    virtual void setParent(RuleContext *parent) override;
+    virtual misc::Interval getSourceInterval() override;
+
+    virtual std::any accept(ParseTreeVisitor *visitor) override;
+
+    virtual std::string getText() override;
+    virtual std::string toStringTree(Parser *parser, bool pretty = false) override;
+    virtual std::string toString() override;
+    virtual std::string toStringTree(bool pretty = false) override;
+  };
+
+} // namespace tree
+} // namespace antlr4