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> !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>

Creates a filterable data provider with the given name for debugging. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
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<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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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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impl<T> ErasedDestructor for T
where T: 'static,

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