Struct rustc_middle::ty::layout::LayoutCx

pub struct LayoutCx<'tcx, C> {
    pub tcx: C,
    pub param_env: ParamEnv<'tcx>,
}

Fields

tcx: C

param_env: ParamEnv<'tcx>

Implementations

impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>>

fn scalar_pair(&self, a: Scalar, b: Scalar) -> Layout

fn univariant_uninterned(
    &self,
    ty: Ty<'tcx>,
    fields: &[TyAndLayout<'_>],
    repr: &ReprOptions,
    kind: StructKind
) -> Result<Layout, LayoutError<'tcx>>

fn layout_of_uncached(
    &self,
    ty: Ty<'tcx>
) -> Result<&'tcx Layout, LayoutError<'tcx>>

impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>>

fn generator_saved_local_eligibility(
    &self,
    info: &GeneratorLayout<'tcx>
) -> (BitSet<GeneratorSavedLocal>, IndexVec<GeneratorSavedLocal, SavedLocalEligibility>)

Compute the eligibility and assignment of each local.

fn generator_layout(
    &self,
    ty: Ty<'tcx>,
    def_id: DefId,
    substs: SubstsRef<'tcx>
) -> Result<&'tcx Layout, LayoutError<'tcx>>

Compute the full generator layout.

fn record_layout_for_printing(&self, layout: TyAndLayout<'tcx>)

This is invoked by the layout_of query to record the final layout of each type.

fn record_layout_for_printing_outlined(&self, layout: TyAndLayout<'tcx>)

impl<'tcx> LayoutCx<'tcx, TyCtxt<'tcx>>

fn fn_abi_new_uncached(
    &self,
    sig: PolyFnSig<'tcx>,
    extra_args: &[Ty<'tcx>],
    caller_location: Option<Ty<'tcx>>,
    codegen_fn_attr_flags: CodegenFnAttrFlags,
    force_thin_self_ptr: bool
) -> Result<&'tcx FnAbi<'tcx, Ty<'tcx>>, FnAbiError<'tcx>>

fn fn_abi_adjust_for_abi(
    &self,
    fn_abi: &mut FnAbi<'tcx, Ty<'tcx>>,
    abi: SpecAbi
) -> Result<(), FnAbiError<'tcx>>

Trait Implementations

impl<'tcx, T: HasDataLayout> HasDataLayout for LayoutCx<'tcx, T>

fn data_layout(&self) -> &TargetDataLayout

impl<'tcx, C> HasParamEnv<'tcx> for LayoutCx<'tcx, C>

fn param_env(&self) -> ParamEnv<'tcx>

impl<'tcx, T: HasTargetSpec> HasTargetSpec for LayoutCx<'tcx, T>

fn target_spec(&self) -> &Target

impl<'tcx, T: HasTyCtxt<'tcx>> HasTyCtxt<'tcx> for LayoutCx<'tcx, T>

fn tcx(&self) -> TyCtxt<'tcx>

impl<'tcx> LayoutOfHelpers<'tcx> for LayoutCx<'tcx, TyCtxt<'tcx>>

type LayoutOfResult = Result<TyAndLayout<'tcx>, LayoutError<'tcx>>

The TyAndLayout-wrapping type (or TyAndLayout itself), which will be returned from layout_of (see also handle_layout_err).

fn handle_layout_err(
    &self,
    err: LayoutError<'tcx>,
    _: Span,
    _: Ty<'tcx>
) -> LayoutError<'tcx>

Helper used for layout_of, to adapt tcx.layout_of(...) into a Self::LayoutOfResult (which does not need to be a Result<...>).

fn layout_tcx_at_span(&self) -> Span

Span to use for tcx.at(span), from layout_of.

impl<'tcx> LayoutOfHelpers<'tcx> for LayoutCx<'tcx, TyCtxtAt<'tcx>>

type LayoutOfResult = Result<TyAndLayout<'tcx>, LayoutError<'tcx>>

The TyAndLayout-wrapping type (or TyAndLayout itself), which will be returned from layout_of (see also handle_layout_err).

fn layout_tcx_at_span(&self) -> Span

Span to use for tcx.at(span), from layout_of.

fn handle_layout_err(
    &self,
    err: LayoutError<'tcx>,
    _: Span,
    _: Ty<'tcx>
) -> LayoutError<'tcx>

Helper used for layout_of, to adapt tcx.layout_of(...) into a Self::LayoutOfResult (which does not need to be a Result<...>).

Layout

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