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>>

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

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

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

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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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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> 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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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
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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impl<T> Filterable for T

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fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

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where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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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impl<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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Size: 88 bytes