Struct rustc_metadata::rmeta::decoder::CrateMetadata

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pub(crate) struct CrateMetadata {
Show 20 fields blob: MetadataBlob, root: CrateRoot, trait_impls: FxHashMap<(u32, DefIndex), LazyArray<(DefIndex, Option<SimplifiedType>)>>, incoherent_impls: FxHashMap<SimplifiedType, LazyArray<DefIndex>>, raw_proc_macros: Option<&'static [ProcMacro]>, source_map_import_info: Lock<Vec<Option<ImportedSourceFile>>>, def_path_hash_map: DefPathHashMapRef<'static>, expn_hash_map: OnceLock<UnhashMap<ExpnHash, ExpnIndex>>, alloc_decoding_state: AllocDecodingState, def_key_cache: Lock<FxHashMap<DefIndex, DefKey>>, cnum: CrateNum, cnum_map: IndexVec<CrateNum, CrateNum>, dependencies: Vec<CrateNum>, dep_kind: CrateDepKind, source: Lrc<CrateSource>, private_dep: bool, host_hash: Option<Svh>, used: bool, hygiene_context: HygieneDecodeContext, extern_crate: Option<ExternCrate>,
}

Fields§

§blob: MetadataBlob

The primary crate data - binary metadata blob.

§root: CrateRoot

Data about the top-level items in a crate, as well as various crate-level metadata.

§trait_impls: FxHashMap<(u32, DefIndex), LazyArray<(DefIndex, Option<SimplifiedType>)>>

Trait impl data. FIXME: Used only from queries and can use query cache, so pre-decoding can probably be avoided.

§incoherent_impls: FxHashMap<SimplifiedType, LazyArray<DefIndex>>

Inherent impls which do not follow the normal coherence rules.

These can be introduced using either #![rustc_coherence_is_core] or #[rustc_allow_incoherent_impl].

§raw_proc_macros: Option<&'static [ProcMacro]>

Proc macro descriptions for this crate, if it’s a proc macro crate.

§source_map_import_info: Lock<Vec<Option<ImportedSourceFile>>>

Source maps for code from the crate.

§def_path_hash_map: DefPathHashMapRef<'static>

For every definition in this crate, maps its DefPathHash to its DefIndex.

§expn_hash_map: OnceLock<UnhashMap<ExpnHash, ExpnIndex>>

Likewise for ExpnHash.

§alloc_decoding_state: AllocDecodingState

Used for decoding interpret::AllocIds in a cached & thread-safe manner.

§def_key_cache: Lock<FxHashMap<DefIndex, DefKey>>

Caches decoded DefKeys.

§cnum: CrateNum

ID of this crate, from the current compilation session’s point of view.

§cnum_map: IndexVec<CrateNum, CrateNum>

Maps crate IDs as they are were seen from this crate’s compilation sessions into IDs as they are seen from the current compilation session.

§dependencies: Vec<CrateNum>

Same ID set as cnum_map plus maybe some injected crates like panic runtime.

§dep_kind: CrateDepKind

How to link (or not link) this crate to the currently compiled crate.

§source: Lrc<CrateSource>

Filesystem location of this crate.

§private_dep: bool

Whether or not this crate should be consider a private dependency. Used by the ‘exported_private_dependencies’ lint, and for determining whether to emit suggestions that reference this crate.

§host_hash: Option<Svh>

The hash for the host proc macro. Used to support -Z dual-proc-macro.

§used: bool

The crate was used non-speculatively.

§hygiene_context: HygieneDecodeContext

Additional data used for decoding HygieneData (e.g. SyntaxContext and ExpnId). Note that we store a HygieneDecodeContext for each CrateMetadata. This is because SyntaxContext ids are not globally unique, so we need to track which ids we’ve decoded on a per-crate basis.

§extern_crate: Option<ExternCrate>

Information about the extern crate item or path that caused this crate to be loaded. If this is None, then the crate was injected (e.g., by the allocator).

Implementations§

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impl CrateMetadata

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pub(crate) fn new( sess: &Session, cstore: &CStore, blob: MetadataBlob, root: CrateRoot, raw_proc_macros: Option<&'static [ProcMacro]>, cnum: CrateNum, cnum_map: IndexVec<CrateNum, CrateNum>, dep_kind: CrateDepKind, source: CrateSource, private_dep: bool, host_hash: Option<Svh>, ) -> CrateMetadata

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pub(crate) fn dependencies(&self) -> impl Iterator<Item = CrateNum> + '_

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pub(crate) fn add_dependency(&mut self, cnum: CrateNum)

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pub(crate) fn update_extern_crate( &mut self, new_extern_crate: ExternCrate, ) -> bool

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pub(crate) fn source(&self) -> &CrateSource

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pub(crate) fn dep_kind(&self) -> CrateDepKind

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pub(crate) fn set_dep_kind(&mut self, dep_kind: CrateDepKind)

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pub(crate) fn update_and_private_dep(&mut self, private_dep: bool)

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pub(crate) fn used(&self) -> bool

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pub(crate) fn required_panic_strategy(&self) -> Option<PanicStrategy>

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pub(crate) fn needs_panic_runtime(&self) -> bool

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pub(crate) fn is_panic_runtime(&self) -> bool

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pub(crate) fn is_profiler_runtime(&self) -> bool

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pub(crate) fn needs_allocator(&self) -> bool

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pub(crate) fn has_global_allocator(&self) -> bool

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pub(crate) fn has_alloc_error_handler(&self) -> bool

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pub(crate) fn has_default_lib_allocator(&self) -> bool

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pub(crate) fn is_proc_macro_crate(&self) -> bool

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pub(crate) fn name(&self) -> Symbol

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pub(crate) fn hash(&self) -> Svh

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fn num_def_ids(&self) -> usize

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fn local_def_id(&self, index: DefIndex) -> DefId

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fn reverse_translate_def_id(&self, did: DefId) -> Option<DefId>

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Size: 2736 bytes