TypeLayout

public struct TypeLayout : Regular

The layout of a type in memory, including the positions of its parts.

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  • Memory layout of a type, without any detail about parts.

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    Declaration

    Swift

    public struct Bytes : Regular
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  • A (potential, in the case of union types) part of type and where it is stored in a type instance.

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    Declaration

    Swift

    public struct Part : Regular
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  • Aggregate layout values of this layout.

    Declaration

    Swift

    public let bytes: Bytes
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  • The minimum alignment of an instance. Always a power of 2.

    Declaration

    Swift

    public var alignment: Int { get }
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  • The number of bytes occupied by an instance.

    Declaration

    Swift

    public var size: Int { get }
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  • The number of bytes between the beginnings of consecutive array elements.

    Declaration

    Swift

    public var stride: Int { get }
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  • The type whose layout is described by self.

    Declaration

    Swift

    public let type: AnyType
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  • The structure.

    For product types, info for each stored property in storage order. For union types, info for each case when it is active, followed by info for the discriminator. Empty otherwise (built-in types).

    Declaration

    Swift

    public let parts: [Part]
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  • The parentage of the parts.

    For product types, the parentage of each stored property in storage order. For union types, the parentage of each case when it is active, followed by the parentage of the discriminator. Empty otherwise (built-in types).

    Declaration

    Swift

    public var partParentages: some Collection<Part.Parentage> { get }
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  • True iff self is the layout of a union type, which changes how its parts are interpreted.

    Declaration

    Swift

    public let isUnionLayout: Bool
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  • The discriminator of a union layout.,

    Declaration

    Swift

    public var discriminator: Part { get }
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  • The id of the discriminator of a union layout.,

    Declaration

    Swift

    public var discriminatorParentage: Part.Parentage { get }
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  • The number of parts that will be stored at one time for a given instance.

    Declaration

    Swift

    public var storedPartCount: Int { get }
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