Struct CrateLoader

pub struct CrateLoader<'a, 'tcx: 'a> {
    tcx: TyCtxt<'tcx>,
    cstore: &'a mut CStore,
    used_extern_options: &'a mut FxHashSet<Symbol>,
}

Fields

tcx: TyCtxt<'tcx>

cstore: &'a mut CStore

used_extern_options: &'a mut FxHashSet<Symbol>

Implementations

impl<'a, 'tcx> CrateLoader<'a, 'tcx>

fn dcx(&self) -> DiagCtxtHandle<'tcx>

impl<'a, 'tcx> CrateLoader<'a, 'tcx>

pub fn new( tcx: TyCtxt<'tcx>, cstore: &'a mut CStore, used_extern_options: &'a mut FxHashSet<Symbol>, ) -> Self

fn existing_match( &self, name: Symbol, hash: Option<Svh>, kind: PathKind, ) -> Option<CrateNum>

fn is_private_dep( &self, name: Symbol, private_dep: Option<bool>, dep_root: Option<&CratePaths>, ) -> bool

Determine whether a dependency should be considered private.

Dependencies are private if they get extern option specified, e.g. --extern priv:mycrate. This is stored in metadata, so private_dep can be correctly set during load. A Some value for private_dep indicates that the crate is known to be private or public (note that any None or Some(false) use of the same crate will make it public).

Sometimes the directly dependent crate is not specified by --extern, in this case, private-dep is none during loading. This is equivalent to the scenario where the command parameter is set to public-dependency

fn register_crate( &mut self, host_lib: Option<Library>, dep_root: Option<&CratePaths>, lib: Library, dep_kind: CrateDepKind, name: Symbol, private_dep: Option<bool>, ) -> Result<CrateNum, CrateError>

fn load_proc_macro<'b>( &self, locator: &mut CrateLocator<'b>, path_kind: PathKind, host_hash: Option<Svh>, ) -> Result<Option<(LoadResult, Option<Library>)>, CrateError>

where 'a: 'b,

fn resolve_crate( &mut self, name: Symbol, span: Span, dep_kind: CrateDepKind, ) -> Option<CrateNum>

fn maybe_resolve_crate<'b>( &'b mut self, name: Symbol, dep_kind: CrateDepKind, dep_of: Option<(&'b CratePaths, &'b CrateDep)>, ) -> Result<CrateNum, CrateError>

fn load( &self, locator: &mut CrateLocator<'_>, ) -> Result<Option<LoadResult>, CrateError>

fn resolve_crate_deps( &mut self, dep_root: &CratePaths, crate_root: &CrateRoot, metadata: &MetadataBlob, krate: CrateNum, dep_kind: CrateDepKind, ) -> Result<IndexVec<CrateNum, CrateNum>, CrateError>

Go through the crate metadata and load any crates that it references.

fn dlsym_proc_macros( &self, path: &Path, stable_crate_id: StableCrateId, ) -> Result<&'static [ProcMacro], CrateError>

fn inject_panic_runtime(&mut self, krate: &Crate)

fn inject_profiler_runtime(&mut self)

fn inject_allocator_crate(&mut self, krate: &Crate)

fn inject_forced_externs(&mut self)

fn inject_dependency_if( &mut self, krate: CrateNum, what: &str, needs_dep: &dyn Fn(&CrateMetadata) -> bool, )

fn report_unused_deps(&mut self, krate: &Crate)

fn report_future_incompatible_deps(&self, krate: &Crate)

pub fn postprocess(&mut self, krate: &Crate)

pub fn process_extern_crate( &mut self, item: &Item, def_id: LocalDefId, definitions: &Definitions, ) -> Option<CrateNum>

pub fn process_path_extern( &mut self, name: Symbol, span: Span, ) -> Option<CrateNum>

pub fn maybe_process_path_extern(&mut self, name: Symbol) -> Option<CrateNum>

Methods from Deref<Target = TyCtxt<'tcx>>

pub const COMMON_VTABLE_ENTRIES: &'tcx [VtblEntry<'tcx>]

Trait Implementations

impl<'a, 'tcx> Deref for CrateLoader<'a, 'tcx>

type Target = TyCtxt<'tcx>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

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: 24 bytes