pub type ProvidedValue<'tcx> = CoerceUnsizedInfo;
Expand description

This type alias specifies the type returned from query providers and the type used for decoding. For regular queries this is the declared returned type V, but arena_cache will use <V as Deref>::Target instead.

Aliased Type§

struct ProvidedValue<'tcx> {
    pub custom_kind: Option<CustomCoerceUnsized>,
}

Fields§

§custom_kind: Option<CustomCoerceUnsized>

If this is a “custom coerce” impl, then what kind of custom coercion is it? This applies to impls of CoerceUnsized for structs, primarily, where we store a bit of info about which fields need to be coerced.

Trait Implementations§

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impl Clone for CoerceUnsizedInfo

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fn clone(&self) -> CoerceUnsizedInfo

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for CoerceUnsizedInfo

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

Formats the value using the given formatter. Read more
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impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for CoerceUnsizedInfo

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fn decode(__decoder: &mut __D) -> Self

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impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for CoerceUnsizedInfo

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fn encode(&self, __encoder: &mut __E)

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impl EraseType for CoerceUnsizedInfo

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type Result = [u8; 4]

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impl<'__ctx> HashStable<StableHashingContext<'__ctx>> for CoerceUnsizedInfo

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fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )

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impl ParameterizedOverTcx for CoerceUnsizedInfo

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impl Copy for CoerceUnsizedInfo

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:4 bytes