Struct rustc_lint::builtin::ClashingExternDeclarations

pub struct ClashingExternDeclarations {
    seen_decls: FxHashMap<Symbol, HirId>,
}

Fields

seen_decls: FxHashMap<Symbol, HirId>

Implementations

impl ClashingExternDeclarations

pub(crate) fn new() -> Self

pub(in builtin) fn insert(
    &mut self,
    tcx: TyCtxt<'_>,
    fi: &ForeignItem<'_>
) -> Option<HirId>

Insert a new foreign item into the seen set. If a symbol with the same name already exists for the item, return its HirId without updating the set.

pub(in builtin) fn name_of_extern_decl(
    tcx: TyCtxt<'_>,
    fi: &ForeignItem<'_>
) -> SymbolName

Get the name of the symbol that's linked against for a given extern declaration. That is, the name specified in a #[link_name = ...] attribute if one was specified, else, just the symbol's name.

pub(in builtin) fn structurally_same_type<'tcx>(
    cx: &LateContext<'tcx>,
    a: Ty<'tcx>,
    b: Ty<'tcx>,
    ckind: CItemKind
) -> bool

Checks whether two types are structurally the same enough that the declarations shouldn't clash. We need this so we don't emit a lint when two modules both declare an extern struct, with the same members (as the declarations shouldn't clash).

impl ClashingExternDeclarations

pub fn get_lints() -> LintArray

Trait Implementations

impl<'tcx> LateLintPass<'tcx> for ClashingExternDeclarations

pub fn check_foreign_item(
    &mut self,
    cx: &LateContext<'tcx>,
    this_fi: &ForeignItem<'_>
)

pub fn check_param(&mut self, _: &LateContext<'tcx>, _: &'tcx Param<'tcx>)

pub fn check_body(&mut self, _: &LateContext<'tcx>, _: &'tcx Body<'tcx>)

pub fn check_body_post(&mut self, _: &LateContext<'tcx>, _: &'tcx Body<'tcx>)

pub fn check_name(&mut self, _: &LateContext<'tcx>, _: Span, _: Symbol)

pub fn check_crate(&mut self, _: &LateContext<'tcx>, _: &'tcx Crate<'tcx>)

pub fn check_crate_post(&mut self, _: &LateContext<'tcx>, _: &'tcx Crate<'tcx>)

pub fn check_mod(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx Mod<'tcx>,
    _: Span,
    _: HirId
)

pub fn check_mod_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx Mod<'tcx>,
    _: Span,
    _: HirId
)

pub fn check_foreign_item_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx ForeignItem<'tcx>
)

pub fn check_item(&mut self, _: &LateContext<'tcx>, _: &'tcx Item<'tcx>)

pub fn check_item_post(&mut self, _: &LateContext<'tcx>, _: &'tcx Item<'tcx>)

pub fn check_local(&mut self, _: &LateContext<'tcx>, _: &'tcx Local<'tcx>)

pub fn check_block(&mut self, _: &LateContext<'tcx>, _: &'tcx Block<'tcx>)

pub fn check_block_post(&mut self, _: &LateContext<'tcx>, _: &'tcx Block<'tcx>)

pub fn check_stmt(&mut self, _: &LateContext<'tcx>, _: &'tcx Stmt<'tcx>)

pub fn check_arm(&mut self, _: &LateContext<'tcx>, _: &'tcx Arm<'tcx>)

pub fn check_pat(&mut self, _: &LateContext<'tcx>, _: &'tcx Pat<'tcx>)

pub fn check_expr(&mut self, _: &LateContext<'tcx>, _: &'tcx Expr<'tcx>)

pub fn check_expr_post(&mut self, _: &LateContext<'tcx>, _: &'tcx Expr<'tcx>)

pub fn check_ty(&mut self, _: &LateContext<'tcx>, _: &'tcx Ty<'tcx>)

pub fn check_generic_arg(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx GenericArg<'tcx>
)

pub fn check_generic_param(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx GenericParam<'tcx>
)

pub fn check_generics(&mut self, _: &LateContext<'tcx>, _: &'tcx Generics<'tcx>)

pub fn check_where_predicate(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx WherePredicate<'tcx>
)

pub fn check_poly_trait_ref(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx PolyTraitRef<'tcx>,
    _: TraitBoundModifier
)

pub fn check_fn(
    &mut self,
    _: &LateContext<'tcx>,
    _: FnKind<'tcx>,
    _: &'tcx FnDecl<'tcx>,
    _: &'tcx Body<'tcx>,
    _: Span,
    _: HirId
)

pub fn check_fn_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: FnKind<'tcx>,
    _: &'tcx FnDecl<'tcx>,
    _: &'tcx Body<'tcx>,
    _: Span,
    _: HirId
)

pub fn check_trait_item(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx TraitItem<'tcx>
)

pub fn check_trait_item_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx TraitItem<'tcx>
)

pub fn check_impl_item(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx ImplItem<'tcx>
)

pub fn check_impl_item_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx ImplItem<'tcx>
)

pub fn check_struct_def(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx VariantData<'tcx>
)

pub fn check_struct_def_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx VariantData<'tcx>
)

pub fn check_struct_field(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx StructField<'tcx>
)

pub fn check_variant(&mut self, _: &LateContext<'tcx>, _: &'tcx Variant<'tcx>)

pub fn check_variant_post(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx Variant<'tcx>
)

pub fn check_lifetime(&mut self, _: &LateContext<'tcx>, _: &'tcx Lifetime)

pub fn check_path(
    &mut self,
    _: &LateContext<'tcx>,
    _: &'tcx Path<'tcx>,
    _: HirId
)

pub fn check_attribute(&mut self, _: &LateContext<'tcx>, _: &'tcx Attribute)

pub fn enter_lint_attrs(&mut self, _: &LateContext<'tcx>, _: &'tcx [Attribute])

pub fn exit_lint_attrs(&mut self, _: &LateContext<'tcx>, _: &'tcx [Attribute])

impl LintPass for ClashingExternDeclarations

pub fn name(&self) -> &'static str