Struct rustc_query_impl::on_disk_cache::CacheEncoder

pub struct CacheEncoder<'a, 'tcx, E: OpaqueEncoder> {
    tcx: TyCtxt<'tcx>,
    encoder: E,
    type_shorthands: FxHashMap<Ty<'tcx>, usize>,
    predicate_shorthands: FxHashMap<PredicateKind<'tcx>, usize>,
    interpret_allocs: FxIndexSet<AllocId>,
    source_map: CachingSourceMapView<'tcx>,
    file_to_file_index: FxHashMap<*const SourceFile, SourceFileIndex>,
    hygiene_context: &'a HygieneEncodeContext,
}

An encoder that can write to the incremental compilation cache.

Fields

tcx: TyCtxt<'tcx>

encoder: E

type_shorthands: FxHashMap<Ty<'tcx>, usize>

predicate_shorthands: FxHashMap<PredicateKind<'tcx>, usize>

interpret_allocs: FxIndexSet<AllocId>

source_map: CachingSourceMapView<'tcx>

file_to_file_index: FxHashMap<*const SourceFile, SourceFileIndex>

hygiene_context: &'a HygieneEncodeContext

Implementations

impl<'a, 'tcx, E> CacheEncoder<'a, 'tcx, E> where
    E: OpaqueEncoder, 

fn source_file_index(&mut self, source_file: Lrc<SourceFile>) -> SourceFileIndex

fn encode_tagged<T: Encodable<Self>, V: Encodable<Self>>(
    &mut self,
    tag: T,
    value: &V
)

Encode something with additional information that allows to do some sanity checks when decoding the data again. This method will first encode the specified tag, then the given value, then the number of bytes taken up by tag and value. On decoding, we can then verify that we get the expected tag and read the expected number of bytes.

Trait Implementations

impl<'a, 'tcx, E> Encodable<CacheEncoder<'a, 'tcx, E>> for SyntaxContext where
    E: OpaqueEncoder, 

fn encode(&self, s: &mut CacheEncoder<'a, 'tcx, E>)

impl<'a, 'tcx, E> Encodable<CacheEncoder<'a, 'tcx, E>> for ExpnId where
    E: OpaqueEncoder, 

fn encode(&self, s: &mut CacheEncoder<'a, 'tcx, E>)

impl<'a, 'tcx, E> Encodable<CacheEncoder<'a, 'tcx, E>> for Span where
    E: OpaqueEncoder, 

fn encode(&self, s: &mut CacheEncoder<'a, 'tcx, E>)

impl<'a, 'tcx, E> Encodable<CacheEncoder<'a, 'tcx, E>> for CrateNum where
    E: OpaqueEncoder, 

fn encode(&self, s: &mut CacheEncoder<'a, 'tcx, E>)

impl<'a, 'tcx, E> Encodable<CacheEncoder<'a, 'tcx, E>> for DefId where
    E: OpaqueEncoder, 

fn encode(&self, s: &mut CacheEncoder<'a, 'tcx, E>)

impl<'a, 'tcx, E> Encodable<CacheEncoder<'a, 'tcx, E>> for DefIndex where
    E: OpaqueEncoder, 

fn encode(&self, _: &mut CacheEncoder<'a, 'tcx, E>)

impl<'a, 'tcx> Encodable<CacheEncoder<'a, 'tcx, FileEncoder>> for [u8]

fn encode(&self, e: &mut CacheEncoder<'a, 'tcx, FileEncoder>)

impl<'a, 'tcx, E> Encoder for CacheEncoder<'a, 'tcx, E> where
    E: OpaqueEncoder, 

type Ok = <E as Encoder>::Ok

type Err = <E as Encoder>::Err

fn emit_usize(&mut self, value: usize)

fn emit_u128(&mut self, value: u128)

fn emit_u64(&mut self, value: u64)

fn emit_u32(&mut self, value: u32)

fn emit_u16(&mut self, value: u16)

fn emit_u8(&mut self, value: u8)

fn emit_isize(&mut self, value: isize)

fn emit_i128(&mut self, value: i128)

fn emit_i64(&mut self, value: i64)

fn emit_i32(&mut self, value: i32)

fn emit_i16(&mut self, value: i16)

fn emit_i8(&mut self, value: i8)

fn emit_bool(&mut self, value: bool)

fn emit_f64(&mut self, value: f64)

fn emit_f32(&mut self, value: f32)

fn emit_char(&mut self, value: char)

fn emit_str(&mut self, value: &str)

fn emit_raw_bytes(&mut self, value: &[u8])

fn finish(self) -> Result<E::Ok, E::Err>

fn emit_enum_variant<F>(&mut self, v_id: usize, f: F) where
    F: FnOnce(&mut Self), 

fn emit_fieldless_enum_variant<const ID: usize>(&mut self)

impl<'a, 'tcx, E> TyEncoder for CacheEncoder<'a, 'tcx, E> where
    E: OpaqueEncoder, 

type I = TyCtxt<'tcx>

const CLEAR_CROSS_CRATE: bool = false

fn position(&self) -> usize

fn type_shorthands(&mut self) -> &mut FxHashMap<Ty<'tcx>, usize>

fn predicate_shorthands(&mut self) -> &mut FxHashMap<PredicateKind<'tcx>, usize>

fn encode_alloc_id(&mut self, alloc_id: &AllocId)

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.