Struct rustdoc::core::DocContext

pub(crate) struct DocContext<'tcx> {

    pub(crate) tcx: TyCtxt<'tcx>,
    pub(crate) resolver: Rc<RefCell<BoxedResolver>>,
    pub(crate) param_env: ParamEnv<'tcx>,
    pub(crate) external_traits: Rc<RefCell<FxHashMap<DefId, TraitWithExtraInfo>>>,
    pub(crate) active_extern_traits: FxHashSet<DefId>,
    pub(crate) ty_substs: FxHashMap<DefId, Type>,
    pub(crate) lt_substs: FxHashMap<DefId, Lifetime>,
    pub(crate) ct_substs: FxHashMap<DefId, Constant>,
    pub(crate) impl_trait_bounds: FxHashMap<ImplTraitParam, Vec<GenericBound>>,
    pub(crate) generated_synthetics: FxHashSet<(Ty<'tcx>, DefId)>,
    pub(crate) auto_traits: Vec<DefId>,
    pub(crate) render_options: RenderOptions,
    pub(crate) module_trait_cache: FxHashMap<DefId, FxHashSet<DefId>>,
    pub(crate) cache: Cache,
    pub(crate) inlined: FxHashSet<ItemId>,
    pub(crate) output_format: OutputFormat,
}

Fields

tcx: TyCtxt<'tcx>

resolver: Rc<RefCell<BoxedResolver>>

Name resolver. Used for intra-doc links.

The Rc<RefCell<...>> wrapping is needed because that is what’s returned by Queries::expansion().

param_env: ParamEnv<'tcx>

Used for normalization.

Most of this logic is copied from rustc_lint::late.

external_traits: Rc<RefCell<FxHashMap<DefId, TraitWithExtraInfo>>>

Later on moved through clean::Crate into cache

active_extern_traits: FxHashSet<DefId>

Used while populating external_traits to ensure we don’t process the same trait twice at the same time.

ty_substs: FxHashMap<DefId, Type>

Table DefId of type parameter -> substituted type

lt_substs: FxHashMap<DefId, Lifetime>

Table DefId of lifetime parameter -> substituted lifetime

ct_substs: FxHashMap<DefId, Constant>

Table DefId of const parameter -> substituted const

impl_trait_bounds: FxHashMap<ImplTraitParam, Vec<GenericBound>>

Table synthetic type parameter for impl Trait in argument position -> bounds

generated_synthetics: FxHashSet<(Ty<'tcx>, DefId)>

Auto-trait or blanket impls processed so far, as (self_ty, trait_def_id).

auto_traits: Vec<DefId>

render_options: RenderOptions

The options given to rustdoc that could be relevant to a pass.

module_trait_cache: FxHashMap<DefId, FxHashSet<DefId>>

The traits in scope for a given module.

See collect_intra_doc_links::traits_implemented_by for more details. map<module, set<trait>>

cache: Cache

This same cache is used throughout rustdoc, including in crate::html::render.

inlined: FxHashSet<ItemId>

Used by clean::inline to tell if an item has already been inlined.

output_format: OutputFormat

Used by calculate_doc_coverage.

Implementations

impl<'tcx> DocContext<'tcx>

pub(crate) fn sess(&self) -> &'tcx Session

pub(crate) fn with_param_env<T, F: FnOnce(&mut Self) -> T>(
    &mut self,
    def_id: DefId,
    f: F
) -> T

pub(crate) fn enter_resolver<F, R>(&self, f: F) -> R where
    F: FnOnce(&mut Resolver<'_>) -> R, 

pub(crate) fn enter_alias<F, R>(
    &mut self,
    ty_substs: FxHashMap<DefId, Type>,
    lt_substs: FxHashMap<DefId, Lifetime>,
    ct_substs: FxHashMap<DefId, Constant>,
    f: F
) -> R where
    F: FnOnce(&mut Self) -> R, 

Call the closure with the given parameters set as the substitutions for a type alias’ RHS.

pub(crate) fn as_local_hir_id(tcx: TyCtxt<'_>, def_id: ItemId) -> Option<HirId>

Like hir().local_def_id_to_hir_id(), but skips calling it on fake DefIds. (This avoids a slice-index-out-of-bounds panic.)

Layout

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: 1272 bytes