Struct rustc_metadata::schema::LazySeq[][src]

#[must_use]
pub struct LazySeq<T> { pub len: usize, pub position: usize, _marker: PhantomData<T>, }
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A sequence of type T referred to by its absolute position in the metadata and length, and which can be decoded lazily. The sequence is a single node for the purposes of Lazy.

Unlike Lazy<Vec<T>>, the length is encoded next to the position, not at the position, which means that the length doesn't need to be known before encoding all the elements.

If the length is 0, no position is encoded, but otherwise, the encoding is that of Lazy, with the distinction that the minimal distance the length of the sequence, i.e. it's assumed there's no 0-byte element in the sequence.

Fields

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🔬 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?

🔬 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<'tcx> LazySeq<Index>
[src]

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Given the metadata, extract out the offset of a particular DefIndex (if any).

impl<'a, 'tcx: 'a, T: Decodable> LazySeq<T>
[src]

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impl<T> LazySeq<T>
[src]

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

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🔬 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?

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

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Returns the minimum encoded size of length values of type T.

Trait Implementations

impl<'a, 'tcx, T> SpecializedEncoder<LazySeq<T>> for EncodeContext<'a, 'tcx>
[src]

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

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Encode the value in a manner specific to this encoder state.

impl<'a, 'tcx, T> SpecializedDecoder<LazySeq<T>> for DecodeContext<'a, 'tcx>
[src]

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Decode a value in a manner specific to this decoder state.

impl<T> Copy for LazySeq<T>
[src]

impl<T> Clone for LazySeq<T>
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<T> UseSpecializedEncodable for LazySeq<T>
[src]

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Defaults to returning an error (see SpecializationError).

impl<T> UseSpecializedDecodable for LazySeq<T>
[src]

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

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Defaults to returning an error (see SpecializationError).

impl<CTX, T> HashStable<CTX> for LazySeq<T>
[src]

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

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Auto Trait Implementations

impl<T> Send for LazySeq<T> where
    T: Send

impl<T> Sync for LazySeq<T> where
    T: Sync