base.py

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#      BASE MODULE                                                            #
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from enum import Enum

_SHOULD_LOG_SCOPE = False  # see '--scope' command line option
_SHOULD_LOG_STACK = False  # see '--stack' command line option


class ErrorCode(Enum):
    UNEXPECTED_TOKEN = "Unexpected token"
    ID_NOT_FOUND = "Identifier not found"
    DUPLICATE_ID = "Duplicate id found"
    VARIABLE_NOT_INITIALISER = "Variable not initialised"
    MISSING_RETURN = "Missing return statement"


class Error(Exception):
    def __init__(self, error_code=None, token=None, message=None):
        self.error_code = error_code
        self.token = token
        # add exception class name before the message
        self.message = f"{self.__class__.__name__}: {message}"


class LexerError(Error):
    pass


class ParserError(Error):
    pass


class SemanticError(Error):
    pass