Trait syn::parse::Parser[−][src]

pub trait Parser: Sized {
    type Output;
    fn parse2(self, tokens: TokenStream) -> Result<Self::Output>;

    fn parse(self, tokens: TokenStream) -> Result<Self::Output> { ... }
    fn parse_str(self, s: &str) -> Result<Self::Output> { ... }
}

Parser that can parse Rust tokens into a particular syntax tree node.

Refer to the module documentation for details about parsing in Syn.

This trait is available if Syn is built with the "parsing" feature.

Associated Types

`type Output`

Required Methods

`fn parse2(self, tokens: TokenStream) -> Result<Self::Output>`

Parse a proc-macro2 token stream into the chosen syntax tree node.

Provided Methods

`fn parse(self, tokens: TokenStream) -> Result<Self::Output>`

Parse tokens of source code into the chosen syntax tree node.

This method is available if Syn is built with both the "parsing" and "proc-macro" features.

`fn parse_str(self, s: &str) -> Result<Self::Output>`

Parse a string of Rust code into the chosen syntax tree node.

Hygiene

Every span in the resulting syntax tree will be set to resolve at the macro call site.

Implementors

impl<F, T> Parser for F where F: FnOnce(ParseStream) -> Result<T>, type Output = T;
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