Trait syntax::ext::base::TTMacroExpander [−] [src]

pub trait TTMacroExpander {
    fn expand<'cx>(&self,
                   ecx: &'cx mut ExtCtxt,
                   span: Span,
                   input: TokenStream)
                   -> Box<MacResult + 'cx>;
}

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

Represents a thing that maps token trees to Macro Results

Required Methods

`fn expand<'cx>(&self, ecx: &'cx mut ExtCtxt, span: Span, input: TokenStream) -> Box<MacResult + 'cx>`

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

Implementors

impl<F> TTMacroExpander for F where F: for<'cx> Fn(&'cx mut ExtCtxt, Span, &[TokenTree]) -> Box<MacResult + 'cx>