Fix functin parsing
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db1e188fdb
commit
fff9cb7d25
@ -88,6 +88,14 @@ macro_rules! expect {
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}
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}
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fn is_delimiter(token: &Token) -> bool {
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use tokenizer::Token::*;
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match *token {
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Newline | Semicolon => true,
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_ => false
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}
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}
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impl Parser {
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fn program(&mut self) -> ParseResult<AST> {
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use tokenizer::Token::*;
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@ -99,7 +107,7 @@ impl Parser {
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};
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let result: ParseResult<ASTNode> = match cur_tok {
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Newline | Semicolon => { self.next(); continue},
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ref t if is_delimiter(&t) => { self.next(); continue},
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_ => self.statement()
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};
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@ -117,7 +125,7 @@ impl Parser {
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let cur_tok: Token = self.peek().unwrap().clone();
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let node: ASTNode = match cur_tok {
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Keyword(Kw::Fn) => try!(self.declaration()),
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_ => try!(self.expression())
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_ => ASTNode::ExprNode(try!(self.expression())),
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};
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Ok(node)
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@ -168,18 +176,27 @@ impl Parser {
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fn body(&mut self) -> ParseResult<Vec<Expression>> {
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use tokenizer::Token::*;
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self.next();
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Ok(vec!(Expression::Number(101.01)))
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let mut exprs = Vec::new();
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loop {
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match self.peek() {
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Some(ref t) if is_delimiter(t) => { self.next(); continue},
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Some(Keyword(Kw::End)) => break,
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_ => {
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let expr = try!(self.expression());
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exprs.push(expr);
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}
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}
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}
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Ok(exprs)
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}
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fn expression(&mut self) -> ParseResult<ASTNode> {
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fn expression(&mut self) -> ParseResult<Expression> {
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use tokenizer::Token::*;
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let expr: Expression = match self.next() {
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Some(Identifier(s)) => Expression::StringLiteral(s),
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Some(x) => panic!("lol tryinna parse {:?}", x),
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None => panic!("FUCK")
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_ => panic!("bad expression parse"),
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};
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Ok(ASTNode::ExprNode(expr))
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Ok(expr)
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}
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}
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