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

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§cx: &'a LateContext<'tcx>§mode: CItemKind

Implementations§

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

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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.

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

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

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

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

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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).

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

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

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

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fn check_fn(&mut self, def_id: LocalDefId, decl: &'tcx FnDecl<'_>)

Check if a function’s argument types and result type are “ffi-safe”.

For a external ABI function, argument types and the result type are walked to find fn-ptr types that have external ABIs, as these still need checked.

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fn check_foreign_fn(&mut self, def_id: LocalDefId, decl: &'tcx FnDecl<'_>)

Check if a function’s argument types and result type are “ffi-safe”.

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

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

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fn find_fn_ptr_ty_with_external_abi( &self, hir_ty: &Ty<'tcx>, ty: Ty<'tcx> ) -> Vec<(Ty<'tcx>, Span)>

Find any fn-ptr types with external ABIs in ty.

For example, Option<extern "C" fn()> returns extern "C" fn()

Auto Trait Implementations§

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impl<'a, 'tcx> !RefUnwindSafe for ImproperCTypesVisitor<'a, 'tcx>

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impl<'a, 'tcx> !Send for ImproperCTypesVisitor<'a, 'tcx>

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impl<'a, 'tcx> !Sync for ImproperCTypesVisitor<'a, 'tcx>

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

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impl<'a, 'tcx> !UnwindSafe for ImproperCTypesVisitor<'a, 'tcx>

Blanket Implementations§

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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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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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<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.

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