Enum rustc_abi::Abi

source ·
pub enum Abi {
    Uninhabited,
    Scalar(Scalar),
    ScalarPair(ScalarScalar),
    Vector {
        element: Scalar,
        count: u64,
    },
    Aggregate {
        sized: bool,
    },
}
Expand description

Describes how values of the type are passed by target ABIs, in terms of categories of C types there are ABI rules for.

Variants§

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Uninhabited

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Scalar(Scalar)

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ScalarPair(ScalarScalar)

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Vector

Fields

§element: Scalar
§count: u64
§

Aggregate

Fields

§sized: bool

If true, the size is exact, otherwise it’s only a lower bound.

Implementations§

Returns true if the layout corresponds to an unsized type.

Returns true if this is a single signed integer scalar

Returns true if this is an uninhabited type

Returns true is this is a scalar type

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method tests for self and other values to be equal, and is used by ==.
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

Auto Trait Implementations§

Blanket Implementations§

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.

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: 80 bytes

Size for each variant:

  • Uninhabited: 0 bytes
  • Scalar: 40 bytes
  • ScalarPair: 80 bytes
  • Vector: 48 bytes
  • Aggregate: 1 byte