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

Implementations§

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

Trait Implementations§

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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 FxHashMap<DefId, EarlyBinder<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 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 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 CrateNum

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

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

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fn decode(_d: &mut CacheDecoder<'a, 'tcx>) -> DefIndex

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for ExpnId

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

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impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for Span

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

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

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

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

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fn decode(decoder: &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> TyDecoder for CacheDecoder<'a, 'tcx>

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type I = TyCtxt<'tcx>

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const CLEAR_CROSS_CRATE: bool = false

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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> !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>

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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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<'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<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle: &[QueryInfo], _guar: ErrorGuaranteed ) -> T

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: 104 bytes