Struct rustc_metadata::rmeta::decoder::DecodeContext

pub(super) struct DecodeContext<'a, 'tcx> {
    opaque: MemDecoder<'a>,
    cdata: Option<CrateMetadataRef<'a>>,
    blob: &'a MetadataBlob,
    sess: Option<&'tcx Session>,
    tcx: Option<TyCtxt<'tcx>>,
    lazy_state: LazyState,
    alloc_decoding_session: Option<AllocDecodingSession<'a>>,
}

Fields

opaque: MemDecoder<'a>

cdata: Option<CrateMetadataRef<'a>>

blob: &'a MetadataBlob

sess: Option<&'tcx Session>

tcx: Option<TyCtxt<'tcx>>

lazy_state: LazyState

alloc_decoding_session: Option<AllocDecodingSession<'a>>

Implementations

impl<'a, 'tcx> DecodeContext<'a, 'tcx>

fn tcx(&self) -> TyCtxt<'tcx>

pub fn blob(&self) -> &'a MetadataBlob

pub fn cdata(&self) -> CrateMetadataRef<'a>

fn map_encoded_cnum_to_current(&self, cnum: CrateNum) -> CrateNum

fn read_lazy_offset_then<T>(&mut self, f: impl Fn(NonZeroUsize) -> T) -> T

fn read_lazy<T>(&mut self) -> LazyValue<T>

fn read_lazy_array<T>(&mut self, len: usize) -> LazyArray<T>

fn read_lazy_table<I, T>(&mut self, width: usize, len: usize) -> LazyTable<I, T>

pub fn read_raw_bytes(&mut self, len: usize) -> &[u8]

Trait Implementations

impl<'tcx, '__a> Decodable<DecodeContext<'__a, 'tcx>> for CrateHeader

fn decode(__decoder: &mut DecodeContext<'__a, 'tcx>) -> Self

impl<'tcx, '__a> Decodable<DecodeContext<'__a, 'tcx>> for CrateRoot

fn decode(__decoder: &mut DecodeContext<'__a, 'tcx>) -> Self

impl<'tcx, '__a> Decodable<DecodeContext<'__a, 'tcx>> for IncoherentImpls

fn decode(__decoder: &mut DecodeContext<'__a, 'tcx>) -> Self

impl<'tcx, '__a> Decodable<DecodeContext<'__a, 'tcx>> for LazyTables

fn decode(__decoder: &mut DecodeContext<'__a, 'tcx>) -> Self

impl<'tcx, '__a> Decodable<DecodeContext<'__a, 'tcx>> for ProcMacroData

fn decode(__decoder: &mut DecodeContext<'__a, 'tcx>) -> Self

impl<'tcx, '__a> Decodable<DecodeContext<'__a, 'tcx>> for TraitImpls

fn decode(__decoder: &mut DecodeContext<'__a, 'tcx>) -> Self

impl<'a, 'tcx> Decodable<DecodeContext<'a, 'tcx>> for &'tcx [(Clause<'tcx>, Span)]

fn decode(d: &mut DecodeContext<'a, 'tcx>) -> Self

impl<'a, 'tcx> Decodable<DecodeContext<'a, 'tcx>> for DefPathHashMapRef<'static>

fn decode(d: &mut DecodeContext<'a, 'tcx>) -> DefPathHashMapRef<'static>

impl<'a, 'tcx> Decodable<DecodeContext<'a, 'tcx>> for ExpnIndex

fn decode(d: &mut DecodeContext<'a, 'tcx>) -> ExpnIndex

impl<'a, 'tcx, T> Decodable<DecodeContext<'a, 'tcx>> for LazyArray<T>

fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self

impl<'a, 'tcx, I: Idx, T> Decodable<DecodeContext<'a, 'tcx>> for LazyTable<I, T>

fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self

impl<'a, 'tcx, T> Decodable<DecodeContext<'a, 'tcx>> for LazyValue<T>

fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> Self

impl<'a, 'tcx> Decodable<DecodeContext<'a, 'tcx>> for SpanData

fn decode(decoder: &mut DecodeContext<'a, 'tcx>) -> SpanData

impl<'a, 'tcx> Decoder for DecodeContext<'a, 'tcx>

fn read_usize(&mut self) -> usize

fn read_u128(&mut self) -> u128

fn read_u64(&mut self) -> u64

fn read_u32(&mut self) -> u32

fn read_u16(&mut self) -> u16

fn read_u8(&mut self) -> u8

fn read_isize(&mut self) -> isize

fn read_i128(&mut self) -> i128

fn read_i64(&mut self) -> i64

fn read_i32(&mut self) -> i32

fn read_i16(&mut self) -> i16

fn read_raw_bytes(&mut self, len: usize) -> &[u8]

fn peek_byte(&self) -> u8

fn position(&self) -> usize

fn read_i8(&mut self) -> i8

fn read_bool(&mut self) -> bool

fn read_char(&mut self) -> char

fn read_str(&mut self) -> &str

impl<'a, 'tcx> SpanDecoder for DecodeContext<'a, 'tcx>

fn decode_attr_id(&mut self) -> AttrId

fn decode_crate_num(&mut self) -> CrateNum

fn decode_def_index(&mut self) -> DefIndex

fn decode_def_id(&mut self) -> DefId

fn decode_syntax_context(&mut self) -> SyntaxContext

fn decode_expn_id(&mut self) -> ExpnId

fn decode_span(&mut self) -> Span

fn decode_symbol(&mut self) -> Symbol

impl<'a, 'tcx> TyDecoder for DecodeContext<'a, 'tcx>

const CLEAR_CROSS_CRATE: bool = true

type I = TyCtxt<'tcx>

fn interner(&self) -> Self::I

fn cached_ty_for_shorthand<F>( &mut self, shorthand: usize, or_insert_with: F ) -> Ty<'tcx>

where F: FnOnce(&mut Self) -> Ty<'tcx>,

fn with_position<F, R>(&mut self, pos: usize, f: F) -> R

where F: FnOnce(&mut Self) -> R,

fn decode_alloc_id(&mut self) -> AllocId

fn positioned_at_shorthand(&self) -> bool

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 96 bytes