Struct rustc_metadata::creader::CStore

pub struct CStore {
    metas: IndexVec<CrateNum, Option<Lrc<CrateMetadata>>>,
    injected_panic_runtime: Option<CrateNum>,
    allocator_kind: Option<AllocatorKind>,
    has_global_allocator: bool,
    pub(crate) stable_crate_ids: FxHashMap<StableCrateId, CrateNum>,
    unused_externs: Vec<Symbol>,
}

Fields

metas: IndexVec<CrateNum, Option<Lrc<CrateMetadata>>>

injected_panic_runtime: Option<CrateNum>

allocator_kind: Option<AllocatorKind>

This crate needs an allocator and either provides it itself, or finds it in a dependency. If the above is true, then this field denotes the kind of the found allocator.

has_global_allocator: bool

This crate has a #[global_allocator] item.

stable_crate_ids: FxHashMap<StableCrateId, CrateNum>

This map is used to verify we get no hash conflicts between StableCrateId values.

unused_externs: Vec<Symbol>

Unused externs of the crate

Implementations

impl CStore

pub fn struct_field_names_untracked<'a>(
    &'a self,
    def: DefId,
    sess: &'a Session
) -> impl Iterator<Item = Spanned<Symbol>> + 'a

pub fn struct_field_visibilities_untracked(
    &self,
    def: DefId
) -> impl Iterator<Item = Visibility> + '_

pub fn ctor_def_id_and_kind_untracked(
    &self,
    def: DefId
) -> Option<(DefId, CtorKind)>

pub fn visibility_untracked(&self, def: DefId) -> Visibility

pub fn module_children_untracked(
    &self,
    def_id: DefId,
    sess: &Session
) -> Vec<ModChild>

pub fn load_macro_untracked(&self, id: DefId, sess: &Session) -> LoadedMacro

pub fn fn_has_self_parameter_untracked(&self, def: DefId) -> bool

pub fn crate_source_untracked(&self, cnum: CrateNum) -> CrateSource

pub fn get_span_untracked(&self, def_id: DefId, sess: &Session) -> Span

pub fn def_kind(&self, def: DefId) -> DefKind

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

pub fn item_generics_num_lifetimes(
    &self,
    def_id: DefId,
    sess: &Session
) -> usize

pub fn module_expansion_untracked(
    &self,
    def_id: DefId,
    sess: &Session
) -> ExpnId

pub fn num_def_ids_untracked(&self, cnum: CrateNum) -> usize

Only public-facing way to traverse all the definitions in a non-local crate. Critically useful for this third-party project: https://github.com/hacspec/hacspec. See https://github.com/rust-lang/rust/pull/85889 for context.

pub fn item_attrs_untracked<'a>(
    &'a self,
    def_id: DefId,
    sess: &'a Session
) -> impl Iterator<Item = Attribute> + 'a

pub fn get_proc_macro_quoted_span_untracked(
    &self,
    cnum: CrateNum,
    id: usize,
    sess: &Session
) -> Span

pub fn traits_in_crate_untracked(
    &self,
    cnum: CrateNum
) -> impl Iterator<Item = DefId> + '_

pub fn trait_impls_in_crate_untracked(
    &self,
    cnum: CrateNum
) -> impl Iterator<Item = (DefId, Option<SimplifiedType>)> + '_

impl CStore

pub fn from_tcx(tcx: TyCtxt<'_>) -> &CStore

fn alloc_new_crate_num(&mut self) -> CrateNum

pub(crate) fn get_crate_data(&self, cnum: CrateNum) -> CrateMetadataRef<'_>

fn set_crate_data(&mut self, cnum: CrateNum, data: CrateMetadata)

pub(crate) fn iter_crate_data(
    &self
) -> impl Iterator<Item = (CrateNum, &CrateMetadata)>

fn push_dependencies_in_postorder(
    &self,
    deps: &mut Vec<CrateNum>,
    cnum: CrateNum
)

pub(crate) fn crate_dependencies_in_postorder(
    &self,
    cnum: CrateNum
) -> Vec<CrateNum>

fn crate_dependencies_in_reverse_postorder(
    &self,
    cnum: CrateNum
) -> Vec<CrateNum>

pub(crate) fn injected_panic_runtime(&self) -> Option<CrateNum>

pub(crate) fn allocator_kind(&self) -> Option<AllocatorKind>

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

pub fn report_unused_deps(&self, tcx: TyCtxt<'_>)

Trait Implementations

impl Clone for CStore

fn clone(&self) -> CStore

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl CrateStore for CStore

fn def_key(&self, def: DefId) -> DefKey

Returns the DefKey for a given DefId. This indicates the parent DefId as well as some idea of what kind of data the DefId refers to.

fn as_any(&self) -> &dyn Any

fn crate_name(&self, cnum: CrateNum) -> Symbol

fn stable_crate_id(&self, cnum: CrateNum) -> StableCrateId

fn stable_crate_id_to_crate_num(
    &self,
    stable_crate_id: StableCrateId
) -> CrateNum

fn def_path(&self, def: DefId) -> DefPath

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

fn def_path_hash_to_def_id(&self, cnum: CrateNum, hash: DefPathHash) -> DefId

Fetch a DefId from a DefPathHash for a foreign crate.

fn expn_hash_to_expn_id(
    &self,
    sess: &Session,
    cnum: CrateNum,
    index_guess: u32,
    hash: ExpnHash
) -> ExpnId

fn import_source_files(&self, sess: &Session, cnum: CrateNum)

Imports all SourceFiles from the given crate into the current session. This normally happens automatically when we decode a Span from that crate’s metadata - however, the incr comp cache needs to trigger this manually when decoding a foreign Span

impl Debug for CStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

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: 88 bytes