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Beginnings of list literals

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greg 2017-02-17 21:36:39 -08:00
parent 4da771036a
commit d8df98ba01
1 changed files with 7 additions and 1 deletions
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8
src/schala_lang/parser.rs
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@ -17,9 +17,10 @@ use std::convert::From;
//
// expression := postop_expression (op postop_expression)*
// postop_expression := primary_expression postop
// primary_expression := number_expr | String | identifier_expr | paren_expr | conditional_expr | while_expr | lambda_expr
// primary_expression := number_expr | String | identifier_expr | paren_expr | conditional_expr | while_expr | lambda_expr | list_expr
// number_expr := (PLUS | MINUS ) number_expr | Number
// identifier_expr := call_expression | Variable
// list_expr := LSquareBracket exprlist RSquareBracket
// call_expression := Identifier LParen exprlist RParen
// while_expr := WHILE primary_expression LCurlyBrace (expression delimiter)* RCurlyBrace
// paren_expr := LParen expression RParen
@ -432,6 +433,7 @@ impl Parser {
Some(Identifier(_)) => try!(self.identifier_expr()),
Some(Token::LParen) => try!(self.paren_expr()),
Some(Keyword(Kw::Fn)) => try!(self.lambda_expr()),
Some(Token::LSquareBracket) => try!(self.list_expr()),
Some(e) => {
return ParseError::result_from_str(&format!("Expected primary expression, got \
{:?}",
@ -441,6 +443,10 @@ impl Parser {
})
}
fn list_expr(&mut self) -> ParseResult<Expression> {
unimplemented!()
}
fn number_expression(&mut self) -> ParseResult<Expression> {
let mut multiplier = 1;
loop {