Struct rustc_metadata::rmeta::decoder::DecodeContext

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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>>,
}

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§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§

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

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

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

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

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

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

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

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

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

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

Trait Implementations§

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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fn read_usize(&mut self) -> usize

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fn read_u128(&mut self) -> u128

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fn read_u64(&mut self) -> u64

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fn read_u32(&mut self) -> u32

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fn read_u16(&mut self) -> u16

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fn read_u8(&mut self) -> u8

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fn read_isize(&mut self) -> isize

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fn read_i128(&mut self) -> i128

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fn read_i64(&mut self) -> i64

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fn read_i32(&mut self) -> i32

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fn read_i16(&mut self) -> i16

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

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fn peek_byte(&self) -> u8

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fn position(&self) -> usize

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fn read_i8(&mut self) -> i8

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fn read_bool(&mut self) -> bool

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fn read_char(&mut self) -> char

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fn read_str(&mut self) -> &str

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

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

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const CLEAR_CROSS_CRATE: bool = true

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type I = TyCtxt<'tcx>

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

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

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

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fn decode_alloc_id(&mut self) -> AllocId

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fn positioned_at_shorthand(&self) -> bool

Auto Trait Implementations§

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impl<'a, 'tcx> !DynSend for DecodeContext<'a, 'tcx>

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impl<'a, 'tcx> !DynSync for DecodeContext<'a, 'tcx>

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

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impl<'a, 'tcx> !RefUnwindSafe for DecodeContext<'a, 'tcx>

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impl<'a, 'tcx> !Send for DecodeContext<'a, 'tcx>

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impl<'a, 'tcx> !Sync for DecodeContext<'a, 'tcx>

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

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impl<'a, 'tcx> !UnwindSafe for DecodeContext<'a, 'tcx>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type Error = !

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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: 88 bytes