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, 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 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 [(Predicate<'tcx>, Span)]

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

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

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

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

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

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

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

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 ExpnId

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

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 Span

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

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

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

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

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

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

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_usize(&mut self) -> usize

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_i8(&mut self) -> i8

fn read_isize(&mut self) -> isize

fn read_bool(&mut self) -> bool

fn read_f64(&mut self) -> f64

fn read_f32(&mut self) -> f32

fn read_char(&mut self) -> char

fn read_str(&mut self) -> &str

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

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

const CLEAR_CROSS_CRATE: bool = true

type I = TyCtxt<'tcx>

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

fn peek_byte(&self) -> u8

fn position(&self) -> usize

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) -> Rwhere
    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