rustc_middle::query::on_disk_cache

Struct CacheDecoder

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pub struct CacheDecoder<'a, 'tcx> {
    tcx: TyCtxt<'tcx>,
    opaque: MemDecoder<'a>,
    source_map: &'a SourceMap,
    file_index_to_file: &'a Lock<FxHashMap<SourceFileIndex, Lrc<SourceFile>>>,
    file_index_to_stable_id: &'a FxHashMap<SourceFileIndex, EncodedSourceFileId>,
    alloc_decoding_session: AllocDecodingSession<'a>,
    syntax_contexts: &'a FxHashMap<u32, AbsoluteBytePos>,
    expn_data: &'a UnhashMap<ExpnHash, AbsoluteBytePos>,
    foreign_expn_data: &'a UnhashMap<ExpnHash, u32>,
    hygiene_context: &'a HygieneDecodeContext,
}
Expand description

A decoder that can read from the incremental compilation cache. It is similar to the one we use for crate metadata decoding in that it can rebase spans and eventually will also handle things that contain Ty instances.

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§tcx: TyCtxt<'tcx>§opaque: MemDecoder<'a>§source_map: &'a SourceMap§file_index_to_file: &'a Lock<FxHashMap<SourceFileIndex, Lrc<SourceFile>>>§file_index_to_stable_id: &'a FxHashMap<SourceFileIndex, EncodedSourceFileId>§alloc_decoding_session: AllocDecodingSession<'a>§syntax_contexts: &'a FxHashMap<u32, AbsoluteBytePos>§expn_data: &'a UnhashMap<ExpnHash, AbsoluteBytePos>§foreign_expn_data: &'a UnhashMap<ExpnHash, u32>§hygiene_context: &'a HygieneDecodeContext

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impl<'a, 'tcx> CacheDecoder<'a, 'tcx>

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

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [(ExportedSymbol<'tcx>, SymbolExportInfo)]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [Attribute]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [DeducedParamAttrs]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [DefId]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [Ident]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [InlineAsmTemplatePiece]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [LocalDefId]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [Span]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx [Variance]

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx Graph

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx IndexVec<Promoted, Body<'tcx>>

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx UnordMap<DefId, EarlyBinder<'tcx, Ty<'tcx>>>

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx UnordSet<LocalDefId>

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for Vec<u8>

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

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

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

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const CLEAR_CROSS_CRATE: bool = false

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type I = TyCtxt<'tcx>

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

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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 CacheDecoder<'a, 'tcx>

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

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

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

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

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

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

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

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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<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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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<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<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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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