Struct rustc_metadata::rmeta::encoder::EncodeContext

pub(super) struct EncodeContext<'a, 'tcx> {
    opaque: Encoder,
    tcx: TyCtxt<'tcx>,
    feat: &'tcx Features,
    tables: TableBuilders<'tcx>,
    lazy_state: LazyState,
    type_shorthands: FxHashMap<Ty<'tcx>, usize>,
    predicate_shorthands: FxHashMap<PredicateKind<'tcx>, usize>,
    interpret_allocs: FxIndexSet<AllocId>,
    source_file_cache: (Lrc<SourceFile>, usize),
    required_source_files: Option<GrowableBitSet<usize>>,
    is_proc_macro: bool,
    hygiene_ctxt: &'a HygieneEncodeContext,
}

Fields

opaque: Encoder

tcx: TyCtxt<'tcx>

feat: &'tcx Features

tables: TableBuilders<'tcx>

lazy_state: LazyState

type_shorthands: FxHashMap<Ty<'tcx>, usize>

predicate_shorthands: FxHashMap<PredicateKind<'tcx>, usize>

interpret_allocs: FxIndexSet<AllocId>

source_file_cache: (Lrc<SourceFile>, usize)

required_source_files: Option<GrowableBitSet<usize>>

is_proc_macro: bool

hygiene_ctxt: &'a HygieneEncodeContext

Implementations

impl<'a, 'tcx> EncodeContext<'a, 'tcx>

fn emit_lazy_distance<T: ?Sized + LazyMeta>(
    &mut self,
    lazy: Lazy<T>
) -> Result<(), !>

fn lazy<T: ?Sized + LazyMeta>(
    &mut self,
    value: impl EncodeContentsForLazy<'a, 'tcx, T>
) -> Lazy<T>

fn encode_info_for_items(&mut self)

fn encode_def_path_table(&mut self)

fn encode_def_path_hash_map(&mut self) -> Lazy<DefPathHashMapRef<'tcx>>

fn encode_source_map(&mut self) -> Lazy<[SourceFile]>

fn encode_crate_root(&mut self) -> Lazy<CrateRoot<'tcx>>

impl<'a, 'tcx> EncodeContext<'a, 'tcx>

fn encode_attrs(&mut self, def_id: LocalDefId)

fn encode_def_ids(&mut self)

fn encode_item_type(&mut self, def_id: DefId)

fn encode_enum_variant_info(&mut self, def: AdtDef<'tcx>, index: VariantIdx)

fn encode_enum_variant_ctor(&mut self, def: AdtDef<'tcx>, index: VariantIdx)

fn encode_info_for_mod(&mut self, local_def_id: LocalDefId, md: &Mod<'_>)

fn encode_field(
    &mut self,
    adt_def: AdtDef<'tcx>,
    variant_index: VariantIdx,
    field_index: usize
)

fn encode_struct_ctor(&mut self, adt_def: AdtDef<'tcx>, def_id: DefId)

fn encode_explicit_item_bounds(&mut self, def_id: DefId)

fn encode_info_for_trait_item(&mut self, def_id: DefId)

fn encode_info_for_impl_item(&mut self, def_id: DefId)

fn encode_mir(&mut self)

fn encode_stability(&mut self, def_id: DefId)

fn encode_const_stability(&mut self, def_id: DefId)

fn encode_deprecation(&mut self, def_id: DefId)

fn encode_rendered_const_for_body(&mut self, body_id: BodyId) -> String

fn encode_info_for_item(&mut self, def_id: DefId, item: &'tcx Item<'tcx>)

fn encode_info_for_generic_param(
    &mut self,
    def_id: DefId,
    kind: EntryKind,
    encode_type: bool
)

fn encode_info_for_closure(&mut self, hir_id: HirId)

fn encode_info_for_anon_const(&mut self, id: HirId)

fn encode_native_libraries(&mut self) -> Lazy<[NativeLib]>

fn encode_foreign_modules(&mut self) -> Lazy<[ForeignModule]>

fn encode_hygiene(
    &mut self
) -> (Lazy<Table<u32, Lazy<SyntaxContextData>>>, Lazy<Table<ExpnIndex, Lazy<ExpnData>>>, Lazy<Table<ExpnIndex, Lazy<ExpnHash>>>)

fn encode_proc_macros(&mut self) -> Option<ProcMacroData>

fn encode_debugger_visualizers(&mut self) -> Lazy<[DebuggerVisualizerFile]>

fn encode_crate_deps(&mut self) -> Lazy<[CrateDep]>

fn encode_lib_features(&mut self) -> Lazy<[(Symbol, Option<Symbol>)]>

fn encode_diagnostic_items(&mut self) -> Lazy<[(Symbol, DefIndex)]>

fn encode_lang_items(&mut self) -> Lazy<[(DefIndex, usize)]>

fn encode_lang_items_missing(&mut self) -> Lazy<[LangItem]>

fn encode_traits(&mut self) -> Lazy<[DefIndex]>

fn encode_impls(&mut self) -> Lazy<[TraitImpls]>

Encodes an index, mapping each trait to its (local) implementations.

fn encode_incoherent_impls(&mut self) -> Lazy<[IncoherentImpls]>

fn encode_exported_symbols(
    &mut self,
    exported_symbols: &[(ExportedSymbol<'tcx>, SymbolExportInfo)]
) -> Lazy<[(ExportedSymbol<'tcx>, SymbolExportInfo)]>

fn encode_dylib_dependency_formats(
    &mut self
) -> Lazy<[Option<LinkagePreference>]>

fn encode_info_for_foreign_item(
    &mut self,
    def_id: DefId,
    nitem: &ForeignItem<'_>
)

impl<'a, 'tcx> EncodeContext<'a, 'tcx>

fn encode_fields(&mut self, adt_def: AdtDef<'tcx>)

fn encode_info_for_generics(&mut self, generics: &Generics<'tcx>)

fn encode_info_for_expr(&mut self, expr: &Expr<'_>)

fn encode_ident_span(&mut self, def_id: DefId, ident: Ident)

fn encode_addl_info_for_item(&mut self, item: &Item<'_>)

In some cases, along with the item itself, we also encode some sub-items. Usually we want some info from the item so it’s easier to do that here then to wait until we would encounter normally in the visitor walk.

Trait Implementations

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for ProcMacroData

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for CrateRoot<'tcx>

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for TraitImpls

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for IncoherentImpls

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for LazyTables<'tcx>

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for EntryKind

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'tcx, '__a> Encodable<EncodeContext<'__a, 'tcx>> for AssocFnData

fn encode(&self, __encoder: &mut EncodeContext<'__a, 'tcx>) -> Result<(), !>

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for DefPathHashMapRef<'tcx>

fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx, T: Encodable<EncodeContext<'a, 'tcx>>> Encodable<EncodeContext<'a, 'tcx>> for Lazy<T>

fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for &'tcx [Node<'tcx>]

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for &'tcx [(Predicate<'tcx>, Span)]

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx, T: Encodable<EncodeContext<'a, 'tcx>>> Encodable<EncodeContext<'a, 'tcx>> for Lazy<[T]>

fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx, I: Idx, T> Encodable<EncodeContext<'a, 'tcx>> for Lazy<Table<I, T>> where
    Option<T>: FixedSizeEncoding, 

fn encode(&self, e: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for CrateNum

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for DefIndex

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for ExpnIndex

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for SyntaxContext

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for ExpnId

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for Span

fn encode(&self, s: &mut EncodeContext<'a, 'tcx>) -> EncodeResult

impl<'a, 'tcx> Encoder for EncodeContext<'a, 'tcx>

type Error = !

fn emit_unit(&mut self) -> Result<(), Self::Error>

fn emit_usize(&mut self, value: usize) -> Result<(), Self::Error>

fn emit_u128(&mut self, value: u128) -> Result<(), Self::Error>

fn emit_u64(&mut self, value: u64) -> Result<(), Self::Error>

fn emit_u32(&mut self, value: u32) -> Result<(), Self::Error>

fn emit_u16(&mut self, value: u16) -> Result<(), Self::Error>

fn emit_u8(&mut self, value: u8) -> Result<(), Self::Error>

fn emit_isize(&mut self, value: isize) -> Result<(), Self::Error>

fn emit_i128(&mut self, value: i128) -> Result<(), Self::Error>

fn emit_i64(&mut self, value: i64) -> Result<(), Self::Error>

fn emit_i32(&mut self, value: i32) -> Result<(), Self::Error>

fn emit_i16(&mut self, value: i16) -> Result<(), Self::Error>

fn emit_i8(&mut self, value: i8) -> Result<(), Self::Error>

fn emit_bool(&mut self, value: bool) -> Result<(), Self::Error>

fn emit_f64(&mut self, value: f64) -> Result<(), Self::Error>

fn emit_f32(&mut self, value: f32) -> Result<(), Self::Error>

fn emit_char(&mut self, value: char) -> Result<(), Self::Error>

fn emit_str(&mut self, value: &str) -> Result<(), Self::Error>

fn emit_raw_bytes(&mut self, value: &[u8]) -> Result<(), Self::Error>

fn emit_enum<F>(&mut self, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_enum_variant<F>(
    &mut self,
    _v_name: &str,
    v_id: usize,
    _len: usize,
    f: F
) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_fieldless_enum_variant<const ID: usize>(
    &mut self,
    _v_name: &str
) -> Result<(), Self::Error>

fn emit_enum_variant_arg<F>(
    &mut self,
    _first: bool,
    f: F
) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_struct<F>(&mut self, _no_fields: bool, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_struct_field<F>(
    &mut self,
    _f_name: &str,
    _first: bool,
    f: F
) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_tuple<F>(&mut self, _len: usize, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_tuple_arg<F>(&mut self, _idx: usize, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_option<F>(&mut self, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_option_none(&mut self) -> Result<(), Self::Error>

fn emit_option_some<F>(&mut self, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_seq<F>(&mut self, len: usize, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_seq_elt<F>(&mut self, _idx: usize, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_map<F>(&mut self, len: usize, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_map_elt_key<F>(&mut self, _idx: usize, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

fn emit_map_elt_val<F>(&mut self, f: F) -> Result<(), Self::Error> where
    F: FnOnce(&mut Self) -> Result<(), Self::Error>, 

impl<'a, 'tcx> TyEncoder<'tcx> for EncodeContext<'a, 'tcx>

const CLEAR_CROSS_CRATE: bool = true

fn position(&self) -> usize

fn type_shorthands(&mut self) -> &mut FxHashMap<Ty<'tcx>, usize>

fn predicate_shorthands(&mut self) -> &mut FxHashMap<PredicateKind<'tcx>, usize>

fn encode_alloc_id(&mut self, alloc_id: &AllocId) -> Result<(), Self::Error>

impl<'a, 'tcx> Visitor<'tcx> for EncodeContext<'a, 'tcx>

type NestedFilter = OnlyBodies

Override this type to control which nested HIR are visited; see NestedFilter for details. If you override this type, you must also override nested_visit_map.

fn nested_visit_map(&mut self) -> Self::Map

If type NestedFilter is set to visit nested items, this method must also be overridden to provide a map to retrieve nested items.

fn visit_expr(&mut self, ex: &'tcx Expr<'tcx>)

fn visit_anon_const(&mut self, c: &'tcx AnonConst)

fn visit_item(&mut self, item: &'tcx Item<'tcx>)

Visits the top-level item and (optionally) nested items / impl items. See visit_nested_item for details.

fn visit_foreign_item(&mut self, ni: &'tcx ForeignItem<'tcx>)

fn visit_generics(&mut self, generics: &'tcx Generics<'tcx>)

type Map = <Self::NestedFilter as NestedFilter<'v>>::Map

fn visit_nested_item(&mut self, id: ItemId)

Invoked when a nested item is encountered. By default, when Self::NestedFilter is nested_filter::None, this method does nothing. You probably don’t want to override this method – instead, override Self::NestedFilter or use the “shallow” or “deep” visit patterns described on itemlikevisit::ItemLikeVisitor. The only reason to override this method is if you want a nested pattern but cannot supply a Map; see nested_visit_map for advice.

fn visit_nested_trait_item(&mut self, id: TraitItemId)

Like visit_nested_item(), but for trait items. See visit_nested_item() for advice on when to override this method.

fn visit_nested_impl_item(&mut self, id: ImplItemId)

Like visit_nested_item(), but for impl items. See visit_nested_item() for advice on when to override this method.

fn visit_nested_foreign_item(&mut self, id: ForeignItemId)

Like visit_nested_item(), but for foreign items. See visit_nested_item() for advice on when to override this method.

fn visit_nested_body(&mut self, id: BodyId)

Invoked to visit the body of a function, method or closure. Like visit_nested_item, does nothing by default unless you override Self::NestedFilter.

fn visit_param(&mut self, param: &'v Param<'v>)

fn visit_body(&mut self, b: &'v Body<'v>)

fn visit_id(&mut self, _hir_id: HirId)

fn visit_name(&mut self, _span: Span, _name: Symbol)

fn visit_ident(&mut self, ident: Ident)

fn visit_mod(&mut self, m: &'v Mod<'v>, _s: Span, n: HirId)

fn visit_local(&mut self, l: &'v Local<'v>)

fn visit_block(&mut self, b: &'v Block<'v>)

fn visit_stmt(&mut self, s: &'v Stmt<'v>)

fn visit_arm(&mut self, a: &'v Arm<'v>)

fn visit_pat(&mut self, p: &'v Pat<'v>)

fn visit_array_length(&mut self, len: &'v ArrayLen)

fn visit_let_expr(&mut self, lex: &'v Let<'v>)

fn visit_ty(&mut self, t: &'v Ty<'v>)

fn visit_generic_param(&mut self, p: &'v GenericParam<'v>)

fn visit_const_param_default(&mut self, _param: HirId, ct: &'v AnonConst)

fn visit_where_predicate(&mut self, predicate: &'v WherePredicate<'v>)

fn visit_fn_decl(&mut self, fd: &'v FnDecl<'v>)

fn visit_fn(
    &mut self,
    fk: FnKind<'v>,
    fd: &'v FnDecl<'v>,
    b: BodyId,
    s: Span,
    id: HirId
)

fn visit_use(&mut self, path: &'v Path<'v>, hir_id: HirId)

fn visit_trait_item(&mut self, ti: &'v TraitItem<'v>)

fn visit_trait_item_ref(&mut self, ii: &'v TraitItemRef)

fn visit_impl_item(&mut self, ii: &'v ImplItem<'v>)

fn visit_foreign_item_ref(&mut self, ii: &'v ForeignItemRef)

fn visit_impl_item_ref(&mut self, ii: &'v ImplItemRef)

fn visit_trait_ref(&mut self, t: &'v TraitRef<'v>)

fn visit_param_bound(&mut self, bounds: &'v GenericBound<'v>)

fn visit_poly_trait_ref(
    &mut self,
    t: &'v PolyTraitRef<'v>,
    m: TraitBoundModifier
)

fn visit_variant_data(
    &mut self,
    s: &'v VariantData<'v>,
    Symbol,
    &'v Generics<'v>,
    _parent_id: HirId,
    Span
)

fn visit_field_def(&mut self, s: &'v FieldDef<'v>)

fn visit_enum_def(
    &mut self,
    enum_definition: &'v EnumDef<'v>,
    generics: &'v Generics<'v>,
    item_id: HirId,
    Span
)

fn visit_variant(
    &mut self,
    v: &'v Variant<'v>,
    g: &'v Generics<'v>,
    item_id: HirId
)

fn visit_label(&mut self, label: &'v Label)

fn visit_infer(&mut self, inf: &'v InferArg)

fn visit_generic_arg(&mut self, generic_arg: &'v GenericArg<'v>)

fn visit_lifetime(&mut self, lifetime: &'v Lifetime)

fn visit_qpath(&mut self, qpath: &'v QPath<'v>, id: HirId, span: Span)

fn visit_path(&mut self, path: &'v Path<'v>, _id: HirId)

fn visit_path_segment(
    &mut self,
    path_span: Span,
    path_segment: &'v PathSegment<'v>
)

fn visit_generic_args(
    &mut self,
    path_span: Span,
    generic_args: &'v GenericArgs<'v>
)

fn visit_assoc_type_binding(&mut self, type_binding: &'v TypeBinding<'v>)

fn visit_attribute(&mut self, _id: HirId, _attr: &'v Attribute)

fn visit_associated_item_kind(&mut self, kind: &'v AssocItemKind)

fn visit_defaultness(&mut self, defaultness: &'v Defaultness)

fn visit_inline_asm(&mut self, asm: &'v InlineAsm<'v>, id: HirId)

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: 1368 bytes