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failed_to_match_macro

rustc_expand::mbe::diagnostics

Function failed_to_match_macro 

Source 
pub(super) fn failed_to_match_macro(
    psess: &ParseSess,
    sp: Span,
    def_span: Span,
    name: Ident,
    args: FailedMacro<'_>,
    body: &TokenStream,
    rules: &[MacroRule],
    on_unmatch_args: Option<&Directive>,
) -> (Span, ErrorGuaranteed)