pub struct LintLevelsBuilder<'s, P> {
    sess: &'s Session,
    features: &'s Features,
    provider: P,
    lint_added_lints: bool,
    store: &'s LintStore,
    registered_tools: &'s RegisteredTools,
}

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§sess: &'s Session§features: &'s Features§provider: P§lint_added_lints: bool§store: &'s LintStore§registered_tools: &'s RegisteredTools

Implementations§

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impl<'tcx> LintLevelsBuilder<'_, LintLevelQueryMap<'tcx>>

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fn add_id(&mut self, hir_id: HirId)

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impl<'tcx> LintLevelsBuilder<'_, QueryMapExpectationsWrapper<'tcx>>

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fn add_id(&mut self, hir_id: HirId)

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impl<'s> LintLevelsBuilder<'s, TopDown>

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pub(crate) fn new( sess: &'s Session, features: &'s Features, lint_added_lints: bool, store: &'s LintStore, registered_tools: &'s RegisteredTools ) -> Self

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fn process_command_line(&mut self)

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pub(crate) fn push( &mut self, attrs: &[Attribute], is_crate_node: bool, source_hir_id: Option<HirId> ) -> BuilderPush

Pushes a list of AST lint attributes onto this context.

This function will return a BuilderPush object which should be passed to pop when this scope for the attributes provided is exited.

This function will perform a number of tasks:

  • It’ll validate all lint-related attributes in attrs
  • It’ll mark all lint-related attributes as used
  • Lint levels will be updated based on the attributes provided
  • Lint attributes are validated, e.g., a #[forbid] can’t be switched to #[allow]

Don’t forget to call pop!

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pub(crate) fn pop(&mut self, push: BuilderPush)

Called after push when the scope of a set of attributes are exited.

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impl<'s, P: LintLevelsProvider> LintLevelsBuilder<'s, P>

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

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pub(crate) fn features(&self) -> &Features

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fn current_specs(&self) -> &FxIndexMap<LintId, LevelAndSource>

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fn insert(&mut self, id: LintId, lvl: LevelAndSource)

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fn add_command_line(&mut self)

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fn insert_spec(&mut self, id: LintId, (level, src): LevelAndSource)

Attempts to insert the id to level_src map entry. If unsuccessful (e.g. if a forbid was already inserted on the same scope), then emits a diagnostic with no change to specs.

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fn add( &mut self, attrs: &[Attribute], is_crate_node: bool, source_hir_id: Option<HirId> )

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fn check_gated_lint( &self, lint_id: LintId, span: Span, lint_from_cli: bool ) -> bool

Checks if the lint is gated on a feature that is not enabled.

Returns true if the lint’s feature is enabled.

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pub fn lint_level(&self, lint: &'static Lint) -> LevelAndSource

Find the lint level for a lint.

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pub(crate) fn opt_span_lint( &self, lint: &'static Lint, span: Option<MultiSpan>, msg: impl Into<DiagnosticMessage>, decorate: impl for<'a, 'b> FnOnce(&'b mut Diag<'a, ()>) )

Used to emit a lint-related diagnostic based on the current state of this lint context.

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pub fn emit_span_lint( &self, lint: &'static Lint, span: MultiSpan, decorate: impl for<'a> DecorateLint<'a, ()> )

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pub fn emit_lint( &self, lint: &'static Lint, decorate: impl for<'a> DecorateLint<'a, ()> )

Trait Implementations§

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impl<'tcx> Visitor<'tcx> for LintLevelsBuilder<'_, LintLevelQueryMap<'tcx>>

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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. Read more
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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.
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fn visit_param(&mut self, param: &'tcx Param<'tcx>)

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

Visits the top-level item and (optionally) nested items / impl items. See visit_nested_item for details.
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fn visit_foreign_item(&mut self, it: &'tcx ForeignItem<'tcx>)

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fn visit_stmt(&mut self, e: &'tcx Stmt<'tcx>)

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

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fn visit_expr_field(&mut self, f: &'tcx ExprField<'tcx>)

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

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fn visit_variant(&mut self, v: &'tcx Variant<'tcx>)

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

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

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fn visit_trait_item(&mut self, trait_item: &'tcx TraitItem<'tcx>)

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fn visit_impl_item(&mut self, impl_item: &'tcx ImplItem<'tcx>)

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

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type Result = ()

The result type of the visit_* methods. Can be either (), or ControlFlow<T>.
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fn visit_nested_item(&mut self, id: ItemId) -> Self::Result

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 at rustc_hir::intravisit. 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.
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fn visit_nested_trait_item(&mut self, id: TraitItemId) -> Self::Result

Like visit_nested_item(), but for trait items. See visit_nested_item() for advice on when to override this method.
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fn visit_nested_impl_item(&mut self, id: ImplItemId) -> Self::Result

Like visit_nested_item(), but for impl items. See visit_nested_item() for advice on when to override this method.
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fn visit_nested_foreign_item(&mut self, id: ForeignItemId) -> Self::Result

Like visit_nested_item(), but for foreign items. See visit_nested_item() for advice on when to override this method.
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fn visit_nested_body(&mut self, id: BodyId) -> Self::Result

Invoked to visit the body of a function, method or closure. Like visit_nested_item, does nothing by default unless you override Self::NestedFilter.
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fn visit_body(&mut self, b: &'v Body<'v>) -> Self::Result

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fn visit_id(&mut self, _hir_id: HirId) -> Self::Result

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fn visit_name(&mut self, _name: Symbol) -> Self::Result

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fn visit_ident(&mut self, ident: Ident) -> Self::Result

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

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

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

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fn visit_pat_field(&mut self, f: &'v PatField<'v>) -> Self::Result

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fn visit_array_length(&mut self, len: &'v ArrayLen) -> Self::Result

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fn visit_anon_const(&mut self, c: &'v AnonConst) -> Self::Result

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fn visit_inline_const(&mut self, c: &'v ConstBlock) -> Self::Result

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

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

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fn visit_const_param_default( &mut self, _param: HirId, ct: &'v AnonConst ) -> Self::Result

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fn visit_generics(&mut self, g: &'v Generics<'v>) -> Self::Result

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

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fn visit_fn_ret_ty(&mut self, ret_ty: &'v FnRetTy<'v>) -> Self::Result

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

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fn visit_fn( &mut self, fk: FnKind<'v>, fd: &'v FnDecl<'v>, b: BodyId, _: Span, id: LocalDefId ) -> Self::Result

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fn visit_use( &mut self, path: &'v Path<'v, SmallVec<[Res; 3]>>, hir_id: HirId ) -> Self::Result

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fn visit_trait_item_ref(&mut self, ii: &'v TraitItemRef) -> Self::Result

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fn visit_foreign_item_ref(&mut self, ii: &'v ForeignItemRef) -> Self::Result

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fn visit_impl_item_ref(&mut self, ii: &'v ImplItemRef) -> Self::Result

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

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

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fn visit_poly_trait_ref(&mut self, t: &'v PolyTraitRef<'v>) -> Self::Result

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fn visit_variant_data(&mut self, s: &'v VariantData<'v>) -> Self::Result

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fn visit_enum_def( &mut self, enum_definition: &'v EnumDef<'v>, item_id: HirId ) -> Self::Result

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fn visit_label(&mut self, label: &'v Label) -> Self::Result

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fn visit_infer(&mut self, inf: &'v InferArg) -> Self::Result

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

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fn visit_lifetime(&mut self, lifetime: &'v Lifetime) -> Self::Result

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fn visit_qpath( &mut self, qpath: &'v QPath<'v>, id: HirId, _span: Span ) -> Self::Result

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

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fn visit_path_segment( &mut self, path_segment: &'v PathSegment<'v> ) -> Self::Result

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fn visit_generic_args( &mut self, generic_args: &'v GenericArgs<'v> ) -> Self::Result

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

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fn visit_attribute(&mut self, _attr: &'v Attribute) -> Self::Result

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fn visit_associated_item_kind( &mut self, kind: &'v AssocItemKind ) -> Self::Result

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fn visit_defaultness(&mut self, defaultness: &'v Defaultness) -> Self::Result

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

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impl<'tcx> Visitor<'tcx> for LintLevelsBuilder<'_, QueryMapExpectationsWrapper<'tcx>>

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type NestedFilter = All

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. Read more
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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.
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fn visit_param(&mut self, param: &'tcx Param<'tcx>)

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

Visits the top-level item and (optionally) nested items / impl items. See visit_nested_item for details.
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fn visit_foreign_item(&mut self, it: &'tcx ForeignItem<'tcx>)

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fn visit_stmt(&mut self, e: &'tcx Stmt<'tcx>)

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

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

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fn visit_variant(&mut self, v: &'tcx Variant<'tcx>)

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

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

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fn visit_trait_item(&mut self, trait_item: &'tcx TraitItem<'tcx>)

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fn visit_impl_item(&mut self, impl_item: &'tcx ImplItem<'tcx>)

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

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type Result = ()

The result type of the visit_* methods. Can be either (), or ControlFlow<T>.
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fn visit_nested_item(&mut self, id: ItemId) -> Self::Result

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 at rustc_hir::intravisit. 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.
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fn visit_nested_trait_item(&mut self, id: TraitItemId) -> Self::Result

Like visit_nested_item(), but for trait items. See visit_nested_item() for advice on when to override this method.
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fn visit_nested_impl_item(&mut self, id: ImplItemId) -> Self::Result

Like visit_nested_item(), but for impl items. See visit_nested_item() for advice on when to override this method.
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fn visit_nested_foreign_item(&mut self, id: ForeignItemId) -> Self::Result

Like visit_nested_item(), but for foreign items. See visit_nested_item() for advice on when to override this method.
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fn visit_nested_body(&mut self, id: BodyId) -> Self::Result

Invoked to visit the body of a function, method or closure. Like visit_nested_item, does nothing by default unless you override Self::NestedFilter.
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fn visit_body(&mut self, b: &'v Body<'v>) -> Self::Result

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fn visit_id(&mut self, _hir_id: HirId) -> Self::Result

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fn visit_name(&mut self, _name: Symbol) -> Self::Result

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fn visit_ident(&mut self, ident: Ident) -> Self::Result

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

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

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

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fn visit_pat_field(&mut self, f: &'v PatField<'v>) -> Self::Result

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fn visit_array_length(&mut self, len: &'v ArrayLen) -> Self::Result

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fn visit_anon_const(&mut self, c: &'v AnonConst) -> Self::Result

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fn visit_inline_const(&mut self, c: &'v ConstBlock) -> Self::Result

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fn visit_expr_field(&mut self, field: &'v ExprField<'v>) -> Self::Result

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

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

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fn visit_const_param_default( &mut self, _param: HirId, ct: &'v AnonConst ) -> Self::Result

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fn visit_generics(&mut self, g: &'v Generics<'v>) -> Self::Result

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

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fn visit_fn_ret_ty(&mut self, ret_ty: &'v FnRetTy<'v>) -> Self::Result

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

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fn visit_fn( &mut self, fk: FnKind<'v>, fd: &'v FnDecl<'v>, b: BodyId, _: Span, id: LocalDefId ) -> Self::Result

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fn visit_use( &mut self, path: &'v Path<'v, SmallVec<[Res; 3]>>, hir_id: HirId ) -> Self::Result

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fn visit_trait_item_ref(&mut self, ii: &'v TraitItemRef) -> Self::Result

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fn visit_foreign_item_ref(&mut self, ii: &'v ForeignItemRef) -> Self::Result

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fn visit_impl_item_ref(&mut self, ii: &'v ImplItemRef) -> Self::Result

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

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

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fn visit_poly_trait_ref(&mut self, t: &'v PolyTraitRef<'v>) -> Self::Result

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fn visit_variant_data(&mut self, s: &'v VariantData<'v>) -> Self::Result

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fn visit_enum_def( &mut self, enum_definition: &'v EnumDef<'v>, item_id: HirId ) -> Self::Result

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fn visit_label(&mut self, label: &'v Label) -> Self::Result

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fn visit_infer(&mut self, inf: &'v InferArg) -> Self::Result

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

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fn visit_lifetime(&mut self, lifetime: &'v Lifetime) -> Self::Result

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fn visit_qpath( &mut self, qpath: &'v QPath<'v>, id: HirId, _span: Span ) -> Self::Result

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

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fn visit_path_segment( &mut self, path_segment: &'v PathSegment<'v> ) -> Self::Result

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fn visit_generic_args( &mut self, generic_args: &'v GenericArgs<'v> ) -> Self::Result

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

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fn visit_attribute(&mut self, _attr: &'v Attribute) -> Self::Result

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fn visit_associated_item_kind( &mut self, kind: &'v AssocItemKind ) -> Self::Result

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fn visit_defaultness(&mut self, defaultness: &'v Defaultness) -> Self::Result

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

Auto Trait Implementations§

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impl<'s, P> DynSend for LintLevelsBuilder<'s, P>
where P: DynSend,

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impl<'s, P> DynSync for LintLevelsBuilder<'s, P>
where P: DynSync,

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impl<'s, P> !RefUnwindSafe for LintLevelsBuilder<'s, P>

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impl<'s, P> !Send for LintLevelsBuilder<'s, P>

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impl<'s, P> !Sync for LintLevelsBuilder<'s, P>

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impl<'s, P> Unpin for LintLevelsBuilder<'s, P>
where P: Unpin,

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impl<'s, P> !UnwindSafe for LintLevelsBuilder<'s, P>

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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impl<T> Filterable for T

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fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<P> IntoQueryParam<P> for P

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impl<T> MaybeResult<T> for T

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type Error = !

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fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<'a, T> Captures<'a> for T
where T: ?Sized,

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impl<T> ErasedDestructor for T
where T: 'static,

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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.