[][src]Struct rustc_metadata::cstore::CrateMetadata

pub struct CrateMetadata {
    pub name: Symbol,
    pub imported_name: Symbol,
    pub extern_crate: Lock<Option<ExternCrate>>,
    pub blob: MetadataBlob,
    pub cnum_map: CrateNumMap,
    pub cnum: CrateNum,
    pub dependencies: Lock<Vec<CrateNum>>,
    pub source_map_import_info: RwLock<Vec<ImportedSourceFile>>,
    pub alloc_decoding_state: AllocDecodingState,
    pub root: CrateRoot,
    pub def_path_table: Lrc<DefPathTable>,
    pub trait_impls: FxHashMap<(u32, DefIndex), LazySeq<DefIndex>>,
    pub dep_kind: Lock<DepKind>,
    pub source: CrateSource,
    pub proc_macros: Option<Vec<(Name, Lrc<SyntaxExtension>)>>,
}
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Fields

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Original name of the crate.

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Name of the crate as imported. I.e. if imported with extern crate foo as bar; this will be bar.

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

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

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For each public item in this crate, we encode a key. When the crate is loaded, we read all the keys and put them in this hashmap, which gives the reverse mapping. This allows us to quickly retrace a DefPath, which is needed for incremental compilation support.

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🔬 This is a nightly-only experimental API. (rustc_private)

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Methods

impl<'a, 'tcx> CrateMetadata
[src]

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Important traits for Vec<u8>

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Iterates over all the stability attributes in the given crate.

Important traits for Vec<u8>

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Iterates over the language items in the given crate.

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Iterates over each child of the given item.

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Important traits for Vec<u8>

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Imports the source_map from an external crate into the source_map of the crate currently being compiled (the "local crate").

The import algorithm works analogous to how AST items are inlined from an external crate's metadata: For every SourceFile in the external source_map an 'inline' copy is created in the local source_map. The correspondence relation between external and local SourceFiles is recorded in the ImportedSourceFile objects returned from this function. When an item from an external crate is later inlined into this crate, this correspondence information is used to translate the span information of the inlined item so that it refers the correct positions in the local source_map (see <decoder::DecodeContext as SpecializedDecoder<Span>>).

The import algorithm in the function below will reuse SourceFiles already existing in the local source_map. For example, even if the SourceFile of some source file of libstd gets imported many times, there will only ever be one SourceFile object for the corresponding file in the local source_map.

Note that imported SourceFiles do not actually contain the source code of the file they represent, just information about length, line breaks, and multibyte characters. This information is enough to generate valid debuginfo for items inlined from other crates.

Proc macro crates don't currently export spans, so this function does not have to work for them.

Trait Implementations

impl<'a, 'tcx> Metadata<'a, 'tcx> for &'a CrateMetadata
[src]

Important traits for &'a [u8]

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Auto Trait Implementations

impl !Send for CrateMetadata

impl !Sync for CrateMetadata

Blanket Implementations

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

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The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

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The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from)

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
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this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<E> SpecializationError for E
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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
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impl<T> Send for T where
    T: ?Sized
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impl<T> Sync for T where
    T: ?Sized
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impl<T> Erased for T

impl<T> MaybeResult for T
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impl<'a, T> Captures for T where
    T: ?Sized
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