Struct rustc_query_system::ich::hcx::StableHashingContext

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pub struct StableHashingContext<'a> {
    untracked: &'a Untracked,
    incremental_ignore_spans: bool,
    raw_source_map: &'a SourceMap,
    caching_source_map: Option<CachingSourceMapView<'a>>,
    hashing_controls: HashingControls,
}
Expand description

This is the context state available during incr. comp. hashing. It contains enough information to transform DefIds and HirIds into stable DefPaths (i.e., a reference to the TyCtxt) and it holds a few caches for speeding up various things (e.g., each DefId/DefPath is only hashed once).

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§untracked: &'a Untracked§incremental_ignore_spans: bool§raw_source_map: &'a SourceMap§caching_source_map: Option<CachingSourceMapView<'a>>§hashing_controls: HashingControls

Implementations§

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impl<'a> StableHashingContext<'a>

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pub fn new(sess: &'a Session, untracked: &'a Untracked) -> Self

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pub fn while_hashing_spans<F: FnOnce(&mut Self)>( &mut self, hash_spans: bool, f: F, )

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pub fn def_path_hash(&self, def_id: DefId) -> DefPathHash

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pub fn local_def_path_hash(&self, def_id: LocalDefId) -> DefPathHash

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pub fn source_map(&mut self) -> &mut CachingSourceMapView<'a>

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pub fn is_ignored_attr(&self, name: Symbol) -> bool

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pub fn hashing_controls(&self) -> HashingControls

Trait Implementations§

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impl<'a> Clone for StableHashingContext<'a>

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fn clone(&self) -> StableHashingContext<'a>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> HashStable<StableHashingContext<'a>> for [Attribute]

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fn hash_stable( &self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher, )

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impl<'a> HashStable<StableHashingContext<'a>> for NodeId

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fn hash_stable(&self, _: &mut StableHashingContext<'a>, _: &mut StableHasher)

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impl<'a> HashStable<StableHashingContext<'a>> for SourceFile

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fn hash_stable( &self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher, )

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impl<'tcx> HashStable<StableHashingContext<'tcx>> for Features

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fn hash_stable( &self, hcx: &mut StableHashingContext<'tcx>, hasher: &mut StableHasher, )

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impl<'a> HashStableContext for StableHashingContext<'a>

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fn hash_spans(&self) -> bool

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fn unstable_opts_incremental_ignore_spans(&self) -> bool

Accesses sess.opts.unstable_opts.incremental_ignore_spans since we don’t have easy access to a Session
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fn def_path_hash(&self, def_id: DefId) -> DefPathHash

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fn def_span(&self, def_id: LocalDefId) -> Span

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fn span_data_to_lines_and_cols( &mut self, span: &SpanData, ) -> Option<(Lrc<SourceFile>, usize, BytePos, usize, BytePos)>

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fn hashing_controls(&self) -> HashingControls

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impl<'ctx> HashStableContext for StableHashingContext<'ctx>

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fn hash_attr(&mut self, attr: &Attribute, hasher: &mut StableHasher)

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impl<'a> HashStableContext for StableHashingContext<'a>

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impl<'ctx> HashStableContext for StableHashingContext<'ctx>

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impl<'ctx> HashStableContext for StableHashingContext<'ctx>

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Alignment of Self.
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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: 160 bytes