This commit is contained in:
SpookyDervish
2025-10-15 16:23:51 +11:00
parent a75dcb933e
commit 549f650b54
7 changed files with 51 additions and 26 deletions

View File

@@ -33,7 +33,7 @@ PRECEDENCES: dict[TokenType, PrecedenceType] = {
TokenType.GT: PrecedenceType.P_LESSGREATER,
TokenType.LT_EQ: PrecedenceType.P_LESSGREATER,
TokenType.GT_EQ: PrecedenceType.P_LESSGREATER,
TokenType.LPAREN: PrecedenceType.P_CALL
TokenType.DOLLARSIGN: PrecedenceType.P_CALL
}
class Parser:
@@ -56,6 +56,8 @@ class Parser:
TokenType.FALSE: self.__parse_boolean,
TokenType.STRING: self.__parse_string_literal,
TokenType.DOLLARSIGN: self.__parse_call_expression
}
self.infix_parse_functions: dict[Token, Callable] = { # 5 + 5
TokenType.PLUS: self.__parse_infix_expression,
@@ -70,7 +72,7 @@ class Parser:
TokenType.GT: self.__parse_infix_expression,
TokenType.LT_EQ: self.__parse_infix_expression,
TokenType.GT_EQ: self.__parse_infix_expression,
TokenType.LPAREN: self.__parse_call_expression
}
self.__next_token()
@@ -340,13 +342,6 @@ class Parser:
return None
return expr
def __parse_call_expression(self, function: Expression) -> CallExpression:
expr: CallExpression = CallExpression(function=function)
expr.arguments = self.__parse_expression_list(TokenType.RPAREN)
return expr
def __parse_expression_list(self, end: TokenType) -> list[Expression]:
e_list: list[Expression] = []
@@ -372,6 +367,15 @@ class Parser:
# endregion
# region Prefix Methods
def __parse_call_expression(self) -> CallExpression:
self.__next_token()
expr: CallExpression = CallExpression(function=self.__parse_expression(PrecedenceType.P_LOWEST))
self.__next_token()
expr.arguments = self.__parse_expression_list(TokenType.RPAREN)
return expr
def __parse_identifier(self) -> IdentifierLiteral:
return IdentifierLiteral(value=self.current_token.literal)