// 极简符号表：记录局部变量定义点。
#pragma once

#include <string>
#include <unordered_map>

#include "SysYParser.h"

class SymbolTable {
 public:
  void Add(const std::string& name, SysYParser::VarDeclContext* decl);
  bool Contains(const std::string& name) const;
  SysYParser::VarDeclContext* Lookup(const std::string& name) const;

 private:
  std::unordered_map<std::string, SysYParser::VarDeclContext*> table_;
};