Lexer.hpp

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#pragma once
#include "../../../AST/AST.hpp"
#include <string>
#include <vector>
#include <memory>
#include <optional>
#include <iostream>
namespace Phasor
{
class Lexer
{
  public:
    
    Lexer(const std::string &source);
    std::vector<Token> tokenize();
 
    struct Error
    {
        std::string message;
        size_t      line;
        size_t      column;
    };
    std::optional<Error> getError() const
    {
        return lastError;
    }
  private:
    std::string source;
    size_t      position = 0;
    size_t      line = 1;
    size_t      column = 1;
 
    std::optional<Error> lastError;
 
    char  peek();
    char  advance();
    bool  isAtEnd();
    void  skipWhitespace();
    void  skipShebang();
    Token scanToken();
    Token identifier();
    Token number();
    Token string();
    Token complexString();
};
} // namespace Phasor