Function rustc_expand::hygiene::decode_syntax_context

pub fn decode_syntax_context<D, F>(
    d: &mut D, 
    context: &HygieneDecodeContext, 
    decode_data: F
) -> Result<SyntaxContext, <D as Decoder>::Error> where
    D: Decoder,
    F: FnOnce(&mut D, u32) -> Result<SyntaxContextData, <D as Decoder>::Error>,