Struct rustc_query_impl::on_disk_cache::CacheDecoder

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,
}

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.

Fields

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

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

fn file_index_to_file(&self, index: SourceFileIndex) -> Lrc<SourceFile>

Trait Implementations

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

fn read_u128(&mut self) -> u128

fn read_u64(&mut self) -> u64

fn read_u32(&mut self) -> u32

fn read_u16(&mut self) -> u16

fn read_u8(&mut self) -> u8

fn read_usize(&mut self) -> usize

fn read_i128(&mut self) -> i128

fn read_i64(&mut self) -> i64

fn read_i32(&mut self) -> i32

fn read_i16(&mut self) -> i16

fn read_i8(&mut self) -> i8

fn read_isize(&mut self) -> isize

fn read_bool(&mut self) -> bool

fn read_f64(&mut self) -> f64

fn read_f32(&mut self) -> f32

fn read_char(&mut self) -> char

fn read_str(&mut self) -> &str

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

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

fn position(&self) -> usize

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

type I = TyCtxt<'tcx>

const CLEAR_CROSS_CRATE: bool = false

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

fn position(&self) -> usize

fn peek_byte(&self) -> u8

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

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

fn decode_alloc_id(&mut self) -> AllocId

fn positioned_at_shorthand(&self) -> bool

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