include/inja/exceptions.hpp

// Copyright (c) 2020 Pantor. All rights reserved.

#ifndef INCLUDE_INJA_EXCEPTIONS_HPP_
#define INCLUDE_INJA_EXCEPTIONS_HPP_

#include <stdexcept>
#include <string>


namespace inja {

struct SourceLocation {
  size_t line;
  size_t column;
};

struct InjaError : public std::runtime_error {
  std::string type;
  std::string message;

  bool has_location {false};
  SourceLocation location;

  InjaError(const std::string& type, const std::string& message)
    : std::runtime_error("[inja.exception." + type + "] " + message), type(type), message(message) { }
  
  InjaError(const std::string& type, const std::string& message, SourceLocation location)
    : std::runtime_error(
      "[inja.exception." + type + "] (at " + std::to_string(location.line) + ":" + std::to_string(location.column) + ") " + message
    ), type(type), message(message), has_location(true), location(location) { }
};

struct ParserError : public InjaError {
  ParserError(const std::string& message) : InjaError("parser_error", message) { }
  ParserError(const std::string& message, SourceLocation location)
    : InjaError("parser_error", message, location) { }
};

struct RenderError : public InjaError {
  RenderError(const std::string& message) : InjaError("render_error", message) { }
  RenderError(const std::string& message, SourceLocation location)
    : InjaError("render_error", message, location) { }
};

struct FileError : public InjaError {
  FileError(const std::string& message) : InjaError("file_error", message) { }
  FileError(const std::string& message, SourceLocation location)
    : InjaError("file_error", message, location) { }
};

struct JsonError : public InjaError {
  JsonError(const std::string& message) : InjaError("json_error", message) { }
  JsonError(const std::string& message, SourceLocation location)
    : InjaError("json_error", message, location) { }
};

}  // namespace inja

#endif  // INCLUDE_INJA_EXCEPTIONS_HPP_