flexi_parse

Function parse

Source 
pub fn parse<T: Parse>(tokens: TokenStream) -> Result<T>
Expand description

Parses the given tokens into the syntax tree node T.

This function ignores all whitespace.

ยงErrors

Forwards any error from T::parse.

Examples found in repository?
examples/calc.rs (line 89)
81fn primary(input: ParseStream) -> Result<Expr> {
82    let lookahead = input.lookahead();
83    if lookahead.peek(token::LitFloat) {
84        Ok(Expr::Num(input.parse::<token::LitFloat>()?.value()))
85    } else if lookahead.peek(token::LitInt) {
86        Ok(Expr::Num(input.parse::<token::LitInt>()?.value() as f64))
87    } else if lookahead.peek(token::LeftParen) {
88        let group: Group<Parentheses> = input.parse()?;
89        parse(group.into_token_stream())
90    } else {
91        Err(lookahead.error())
92    }
93}