Struct rustc::ty::layout::TyLayout

pub struct TyLayout<'tcx> {
    pub ty: Ty<'tcx>,
    // some fields omitted
}

🔬 This is a nightly-only experimental API. (rustc_private)

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The details of the layout of a type, alongside the type itself. Provides various type traversal APIs (e.g. recursing into fields).

Note that the details are NOT guaranteed to always be identical to those obtained from layout_of(ty), as we need to produce layouts for which Rust types do not exist, such as enum variants or synthetic fields of enums (i.e. discriminants) and fat pointers.

Fields

ty: Ty<'tcx>

🔬 This is a nightly-only experimental API. (rustc_private)

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Methods

impl<'a, 'tcx> TyLayout<'tcx>

pub fn for_variant<C>(&self, cx: C, variant_index: usize) -> Self where
    C: LayoutOf<Ty<'tcx>> + HasTyCtxt<'tcx>,
    C::TyLayout: MaybeResult<TyLayout<'tcx>>, 

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

pub fn field<C>(&self, cx: C, i: usize) -> C::TyLayout where
    C: LayoutOf<Ty<'tcx>> + HasTyCtxt<'tcx>,
    C::TyLayout: MaybeResult<TyLayout<'tcx>>, 

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

pub fn is_unsized(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

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Returns true if the layout corresponds to an unsized type.

pub fn is_packed(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

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Returns true if the fields of the layout are packed.

pub fn is_zst(&self) -> bool

🔬 This is a nightly-only experimental API. (rustc_private)

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Returns true if the type is a ZST and not unsized.

pub fn size_and_align(&self) -> (Size, Align)

🔬 This is a nightly-only experimental API. (rustc_private)

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?

Trait Implementations

impl<'tcx> Copy for TyLayout<'tcx>

impl<'tcx> Clone for TyLayout<'tcx>

fn clone(&self) -> TyLayout<'tcx>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'tcx> Debug for TyLayout<'tcx>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.