Struct rustc_lint::types::ImproperCTypesVisitor

struct ImproperCTypesVisitor<'a, 'tcx> {
    cx: &'a LateContext<'tcx>,
    mode: CItemKind,
}

Fields

cx: &'a LateContext<'tcx>

mode: CItemKind

Implementations

impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx>

fn check_for_array_ty(&mut self, sp: Span, ty: Ty<'tcx>) -> bool

Check if the type is array and emit an unsafe type lint.

fn check_field_type_for_ffi(
    &self,
    cache: &mut FxHashSet<Ty<'tcx>>,
    field: &FieldDef,
    substs: SubstsRef<'tcx>
) -> FfiResult<'tcx>

Checks if the given field’s type is “ffi-safe”.

fn check_variant_for_ffi(
    &self,
    cache: &mut FxHashSet<Ty<'tcx>>,
    ty: Ty<'tcx>,
    def: AdtDef<'tcx>,
    variant: &VariantDef,
    substs: SubstsRef<'tcx>
) -> FfiResult<'tcx>

Checks if the given VariantDef’s field types are “ffi-safe”.

fn check_type_for_ffi(
    &self,
    cache: &mut FxHashSet<Ty<'tcx>>,
    ty: Ty<'tcx>
) -> FfiResult<'tcx>

Checks if the given type is “ffi-safe” (has a stable, well-defined representation which can be exported to C code).

fn emit_ffi_unsafe_type_lint(
    &mut self,
    ty: Ty<'tcx>,
    sp: Span,
    note: DiagnosticMessage,
    help: Option<DiagnosticMessage>
)

fn check_for_opaque_ty(&mut self, sp: Span, ty: Ty<'tcx>) -> bool

fn check_type_for_ffi_and_report_errors(
    &mut self,
    sp: Span,
    ty: Ty<'tcx>,
    is_static: bool,
    is_return_type: bool
)

fn check_foreign_fn(&mut self, id: HirId, decl: &FnDecl<'_>)

fn check_foreign_static(&mut self, id: HirId, span: Span)

fn is_internal_abi(&self, abi: SpecAbi) -> bool

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: 16 bytes