[][src]Struct rustc::hir::map::definitions::Definitions

pub struct Definitions {
    table: DefPathTable,
    node_to_def_index: NodeMap<DefIndex>,
    def_index_to_node: [Vec<NodeId>; 2],
    pub(super) node_to_hir_id: IndexVec<NodeId, HirId>,
    parent_modules_of_macro_defs: FxHashMap<Mark, DefId>,
    expansions_that_defined: FxHashMap<DefIndex, Mark>,
    next_disambiguator: FxHashMap<(DefIndex, DefPathData), u32>,
    def_index_to_span: FxHashMap<DefIndex, Span>,
}
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The definition table containing node definitions. It holds the DefPathTable for local DefIds/DefPaths and it also stores a mapping from NodeIds to local DefIds.

Fields

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

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

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If Mark is an ID of some macro expansion, then DefId is the normal module (mod) in which the expanded macro was defined.

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Item with a given DefIndex was defined during macro expansion with ID Mark.

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Methods

impl Definitions
[src]

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Create new empty definition map.

The DefIndex returned from a new Definitions are as follows:

  1. At DefIndexAddressSpace::Low, CRATE_ROOT has index 0:0, and then new indexes are allocated in ascending order.
  2. At DefIndexAddressSpace::High, the first FIRST_FREE_HIGH_DEF_INDEX indexes are reserved for internal use, then 1:FIRST_FREE_HIGH_DEF_INDEX are allocated in ascending order.

FIXME: there is probably a better place to put this comment.

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Get the number of definitions.

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Returns the path from the crate root to index. The root nodes are not included in the path (i.e., this will be an empty vector for the crate root). For an inlined item, this will be the path of the item in the external crate (but the path will begin with the path to the external crate).

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

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

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

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Retrieve the span of the given DefId if DefId is in the local crate, the span exists and it's not DUMMY_SP

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Add a definition with a parent definition.

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Add a definition with a parent definition.

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Initialize the ast::NodeId to HirId mapping once it has been generated during AST to HIR lowering.

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

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Trait Implementations

impl Clone for Definitions
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Auto Trait Implementations

impl !Send for Definitions

impl !Sync for Definitions

Blanket Implementations

impl<T> MaybeResult for T
[src]

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impl<'a, T> Captures for T where
    T: ?Sized
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impl<T> ToOwned for T where
    T: Clone
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Creates owned data from borrowed data, usually by cloning. Read more

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recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
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Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
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The type returned in the event of a conversion error.

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Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
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Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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The type returned in the event of a conversion error.

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Performs the conversion.

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

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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