Struct rustc_typeck::check::cast::CastCheck

pub struct CastCheck<'tcx> {
    expr: &'tcx Expr<'tcx>,
    expr_ty: Ty<'tcx>,
    cast_ty: Ty<'tcx>,
    cast_span: Span,
    span: Span,
}

Reifies a cast check to be checked once we have full type information for a function context.

Fields

expr: &'tcx Expr<'tcx>

expr_ty: Ty<'tcx>

cast_ty: Ty<'tcx>

cast_span: Span

span: Span

Implementations

impl<'a, 'tcx> CastCheck<'tcx>

pub fn new(
    fcx: &FnCtxt<'a, 'tcx>,
    expr: &'tcx Expr<'tcx>,
    expr_ty: Ty<'tcx>,
    cast_ty: Ty<'tcx>,
    cast_span: Span,
    span: Span
) -> Result<CastCheck<'tcx>, ErrorReported>

fn report_cast_error(&self, fcx: &FnCtxt<'a, 'tcx>, e: CastError)

fn report_cast_to_unsized_type(&self, fcx: &FnCtxt<'a, 'tcx>)

fn trivial_cast_lint(&self, fcx: &FnCtxt<'a, 'tcx>)

pub fn check(self, fcx: &FnCtxt<'a, 'tcx>)

fn report_object_unsafe_cast(&self, fcx: &FnCtxt<'a, 'tcx>, did: DefId)

pub fn do_check(&self, fcx: &FnCtxt<'a, 'tcx>) -> Result<CastKind, CastError>

Checks a cast, and report an error if one exists. In some cases, this can return Ok and create type errors in the fcx rather than returning directly. coercion-cast is handled in check instead of here.

fn check_ptr_ptr_cast(
    &self,
    fcx: &FnCtxt<'a, 'tcx>,
    m_expr: TypeAndMut<'tcx>,
    m_cast: TypeAndMut<'tcx>
) -> Result<CastKind, CastError>

fn check_fptr_ptr_cast(
    &self,
    fcx: &FnCtxt<'a, 'tcx>,
    m_cast: TypeAndMut<'tcx>
) -> Result<CastKind, CastError>

fn check_ptr_addr_cast(
    &self,
    fcx: &FnCtxt<'a, 'tcx>,
    m_expr: TypeAndMut<'tcx>
) -> Result<CastKind, CastError>

fn check_ref_cast(
    &self,
    fcx: &FnCtxt<'a, 'tcx>,
    m_expr: TypeAndMut<'tcx>,
    m_cast: TypeAndMut<'tcx>
) -> Result<CastKind, CastError>

fn check_addr_ptr_cast(
    &self,
    fcx: &FnCtxt<'a, 'tcx>,
    m_cast: TypeAndMut<'tcx>
) -> Result<CastKind, CastError>

fn try_coercion_cast(&self, fcx: &FnCtxt<'a, 'tcx>) -> Result<(), TypeError<'_>>

fn cenum_impl_drop_lint(&self, fcx: &FnCtxt<'a, 'tcx>)

Trait Implementations

impl<'tcx> Debug for CastCheck<'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

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: 40 bytes