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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 "tree/ParseTree.h"
namespace antlr4 {
namespace tree {
class ANTLR4CPP_PUBLIC TerminalNode : public ParseTree {
public:
static bool is(const tree::ParseTree &parseTree) {
const auto treeType = parseTree.getTreeType();
return treeType == ParseTreeType::TERMINAL || treeType == ParseTreeType::ERROR;
}
static bool is(const tree::ParseTree *parseTree) { return parseTree != nullptr && is(*parseTree); }
virtual Token* getSymbol() const = 0;
/** Set the parent for this leaf node.
*
* Technically, this is not backward compatible as it changes
* the interface but no one was able to create custom
* TerminalNodes anyway so I'm adding as it improves internal
* code quality.
*
* @since 4.7
*/
virtual void setParent(RuleContext *parent) = 0;
protected:
using ParseTree::ParseTree;
};
} // namespace tree
} // namespace antlr4