Function rustc::middle::cstore::tls::with_decoding_context

pub fn with_decoding_context<'decoder, 'tcx, D, F, R>(d: &'decoder mut D, f: F) -> R where D: Decoder, F: FnOnce(&DecodingContext<'tcx>, &mut OpaqueDecoder) -> R, 'tcx: 'decoder

Unstable (rustc_private)

Execute f with access to the thread-local decoding context and rbml decoder. This function will panic if the decoder passed in and the context decoder are not the same.

Note that this method is 'practically' safe due to its checking that the decoder passed in is the same as the one in TLS, but it would still be possible to construct cases where the DecodingContext is exchanged while the same decoder is used, thus working with a wrong context.