Trait syntax::ext::base::AttrProcMacro

pub trait AttrProcMacro {
    fn expand<'cx>(
        &self, 
        ecx: &'cx mut ExtCtxt, 
        span: Span, 
        annotation: TokenStream, 
        annotated: TokenStream
    ) -> TokenStream;
}

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Required Methods

fn expand<'cx>(
    &self,
    ecx: &'cx mut ExtCtxt,
    span: Span,
    annotation: TokenStream,
    annotated: TokenStream
) -> TokenStream

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Implementors

• impl<F> AttrProcMacro for F where
    F: Fn(TokenStream, TokenStream) -> TokenStream,