ast.hpp

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#pragma once
 
#include <string>
#include <variant>
#include <vector>
 
#include "stax/lexer/tokens.hpp"
 
namespace stax::parser {
 
struct Node {
  token::Token token;
};
 
struct Expression {
  Expression() = default;
};
 
struct Identifier {
  Identifier() = default;
  Identifier(const token::Token& tok, const std::string& val)
      : token(tok), value(val) {}
 
  token::Token token;
  std::string value;
};
BOOST_DESCRIBE_STRUCT(Identifier, (), (token, value));
 
struct Statement : public Node {};
 
struct LetStatement : public Statement {
  LetStatement() = default;
  LetStatement(const Identifier& ident) : ident(ident) {}
 
  Identifier ident;
};
BOOST_DESCRIBE_STRUCT(LetStatement, (), (ident));
 
using ast_t = std::variant<LetStatement>;
 
struct Program {
  std::vector<ast_t> statements;
};
 
}  // namespace stax::parser