Type Definition syntax::ext::base::IdentMacroExpanderFn
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[src]
type IdentMacroExpanderFn = fn<'cx>(_: &'cx mut ExtCtxt, _: Span, _: Ident, _: Vec<TokenTree>) -> Box<MacResult + 'cx>;
🔬 This is a nightly-only experimental API. (
rustc_private
)