Module abi_stable::type_layout

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Expand description

Types for modeling the layout of a datatype

Re-exports§

  • pub use self::construction::_private_MonoTypeLayoutDerive;
  • pub use self::construction::_private_TypeLayoutDerive;
  • pub use self::tagging::Tag;
  • pub use self::tl_enums::MakeTLNonExhaustive;

Modules§

  • data_structures
    Helper types for type_layout types.
  • tagging
    Tag is a dynamically typed data structure used to encode extra properties about a type in its layout constant.

Structs§

  • CompFieldAccessor
    A compressed field accessor,represented as 3 bits inside of a CompTLField.
  • CompGenericParams
    The compressed generic parameters of a type, which can be expanded into a GenericParams by calling expand.
  • CompTLField
    A TLField represented as a u64, expadable to a TLField by calling the expand method.
  • CompTLFields
    The layout of all compressed fields in a type definition, one can access the expanded fields by calling the expand method.
  • CompTLFunction
    A compressed version of TLFunction, which can be expanded into a TLFunction by calling the expand method.
  • FmtFullType
    The typename and generics of the type this layout is associated to, used for printing types (eg: RVec<u8> ).
  • GenericParams
    The generic parameters of a type.
  • GenericTLEnum
    The layout of an enum,that might depend on generic parameters.
  • GenericTLPrefixType
    Properties of prefix types (vtables and modules) that depends on generic parameters.
  • IncompatibleWithNonExhaustive
    An error declaring that the Storage of a nonexhaustive enum is not compatible with the enum.
  • IsExhaustive
    Whether this enum is exhaustive,if it is,it can add variants in minor versions.
  • ItemInfo
    Information about where a type was declared.
  • LifetimeIndex
    Which lifetime is being referenced by a field. Allows lifetimes to be renamed,so long as the “same” lifetime is being referenced.
  • LifetimeIndexArray
    A LifetimeIndex::NONE terminated array of 5 lifetime indices.
  • LifetimeIndexPair
    A pair of LifetimeIndex.
  • LifetimeRange
    Either a LifetimeArray or a range into a slice of LifetimePairs.
  • MTLIterator
    An iterator over a list of type layouts.
  • MismatchedTLDataVariant
    An error returned by MonoTLData::expand because the GenericTLData it tried to combine itself with was a different variant.
  • ModPath
    A module path.
  • MonoSharedVars
    A few static slices that many types in the type_layout module contain ranges into, requiring this type to be passed as a parameter.
  • MonoTLEnum
    The parts of the layout of an enum,that don’t depend on generic parameters.
  • MonoTLPrefixType
    Properties of prefix types (vtables and modules) that don’t change with generic parameters.
  • MonoTypeLayout
    The data in the type layout that does not depend on generic parameters.
  • MultipleTypeLayouts
    This stores multiple TypeLayoutCtor,some inline and some in a borrowed slice.
  • OptionU8
    An optional u8 which represents None as u8::max_value()
  • OptionU16
    An optional u16 which represents None as u16::max_value()
  • SharedVars
    A few static slices that many types in the type_layout module contain ranges into, requiring this type to be passed as a parameter.
  • StartLen
    The start and length of a slice into TLFunctions.
  • StartLenConverter
    Used to convert the arguments passed to the tl_genparams macro to a StartLen.
  • TLDiscriminants
    The discriminants of an enum.
  • TLEnum
    Every property about an enum specifically.
  • TLField
    The layout of a field.
  • TLFields
    The layout of all the fields in a type definition.
  • TLFieldsIterator
    An iterator over all the fields in a type definition.
  • TLFunction
    A function pointer in a field.
  • TLFunctionIter
    An iterator over a range of TLFunctions.
  • TLFunctionQualifiers
    Stores all the supported function qualifiers.
  • TLFunctionSlice
    A slice of functions from a TLFunctions.
  • TLFunctions
    All the function pointer types in a type declaration.
  • TLNonExhaustive
    Properties exclusive to nonexhaustive enums.
  • TLPrefixType
    Properties of prefix types (vtables and modules), combining MonoTLPrefixType and GenericTLPrefixType.
  • TypeLayout
    The layout of a type, also includes metadata about where the type was defined.
  • TypeLayoutIndex
    An index for a slice of type layouts.
  • TypeLayoutRange
    A range of indices into a slice of type layouts which can store up to five indices inline, requiring additional layouts to be stored contiguously after the fourth one in the slice.

Enums§

  • DiscriminantRepr
    How the discriminant of an enum is represented.
  • FieldAccessor
    Whether a field is accessible,and how it is accessed.
  • GenericTLData
    The part of TLData that can change based on generic parameters.
  • LifetimeArrayOrSlice
    Either an array of 3 LifetimeIndexPair,or a slice of LifetimeIndexPair.
  • MonoTLData
    The parts of TLData that don’t change based on generic parameters.
  • ReprAttr
    The repr(..) attribute used on a type.
  • TLData
    The interior of the type definition, describing whether the type is a primitive/enum/struct/union and its contents.
  • TLDataDiscriminant
    A discriminant-only version of TLData.
  • TLDiscriminant
    A discriminant of an enum variant.
  • TLFieldOrFunction
    Either a TLField or a TLFunction.
  • TLPrimitive
    Types defined in the compiler

Type Aliases§