Struct CacheDecoder 

pub struct CacheDecoder<'a, 'tcx> {
    tcx: TyCtxt<'tcx>,
    opaque: MemDecoder<'a>,
    file_index_to_file: &'a Lock<FxHashMap<SourceFileIndex, Arc<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>

file_index_to_file: &'a Lock<FxHashMap<SourceFileIndex, Arc<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) -> Arc<SourceFile>

fn decode_symbol_or_byte_symbol<S>( &mut self, new_from_index: impl Fn(u32) -> S, read_and_intern_str_or_byte_str_this: impl Fn(&mut Self) -> S, read_and_intern_str_or_byte_str_opaque: impl Fn(&mut MemDecoder<'a>) -> S, ) -> S

Trait Implementations

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

fn decode_symbol(&mut self) -> Symbol

fn decode_byte_symbol(&mut self) -> ByteSymbol

fn decode_def_index(&mut self) -> DefIndex

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 [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 [Spanned<MonoItem<'tcx>>]

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 Graph

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 UnordMap<DefId, EarlyBinder<'tcx, Ty<'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 Vec<u8>

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

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

fn read_usize(&mut self) -> usize

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_isize(&mut self) -> isize

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

fn peek_byte(&self) -> u8

fn position(&self) -> usize

fn read_i8(&mut self) -> i8

fn read_bool(&mut self) -> bool

fn read_char(&mut self) -> char

fn read_str(&mut self) -> &str

fn read_byte_str(&mut self) -> &[u8]

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

fn decode_syntax_context(&mut self) -> SyntaxContext

fn decode_expn_id(&mut self) -> ExpnId

fn decode_span(&mut self) -> Span

fn decode_crate_num(&mut self) -> CrateNum

fn decode_def_id(&mut self) -> DefId

fn decode_attr_id(&mut self) -> AttrId

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

const CLEAR_CROSS_CRATE: bool = false

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

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) -> R

where 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: 88 bytes