Struct rustc::ty::layout::TyLayout

pub struct TyLayout<'a, Ty> {
    pub ty: Ty,
    pub details: &'a LayoutDetails,
}

🔬 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?

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

🔬 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?

details: &'a LayoutDetails

🔬 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?

Methods

impl<'a, Ty> TyLayout<'a, Ty>

impl<'a, Ty> TyLayout<'a, Ty>

pub fn for_variant<C>(self, cx: C, variant_index: usize) -> TyLayout<'a, Ty> where     C: LayoutOf<Ty = Ty>,     Ty: TyLayoutMethods<'a, C>,

🔬 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 as LayoutOf>::TyLayout where     C: LayoutOf<Ty = Ty>,     Ty: TyLayoutMethods<'a, C>,

🔬 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?

impl<'a, Ty> TyLayout<'a, Ty>

pub fn is_unsized(&self) -> bool

🔬 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?

Returns true if the layout corresponds to an unsized type.

pub fn is_zst(&self) -> bool

🔬 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?

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?

Methods from Deref<Target = &'a LayoutDetails>

Trait Implementations

impl<'a, Ty> Clone for TyLayout<'a, Ty> where     Ty: Clone,

fn clone(&self) -> TyLayout<'a, Ty>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, Ty> Deref for TyLayout<'a, Ty>

type Target = &'a LayoutDetails

The resulting type after dereferencing.

fn deref(&self) -> &&'a LayoutDetails

Dereferences the value.

impl<'a, Ty> Debug for TyLayout<'a, Ty> where     Ty: Debug,

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

Formats the value using the given formatter.

impl<'a, Ty> Copy for TyLayout<'a, Ty> where     Ty: Copy,