Mojo struct
VariadicPack
@register_passable
struct VariadicPack[elt_is_mutable: Bool, //, is_owned: Bool, origin: Origin[elt_is_mutable], element_trait: AnyTrait[AnyType], *element_types: element_trait]
A utility class to access variadic pack arguments and provide an API for doing things with them.
Parameters
- elt_is_mutable (
Bool): True if the elements of the list are mutable for an mut or owned argument pack. - is_owned (
Bool): Whether the elements are owned by the pack. If so, the pack will release the elements when it is destroyed. - origin (
Origin[elt_is_mutable]): The origin of the underlying elements. - element_trait (
AnyTrait[AnyType]): The trait that each element of the pack conforms to. - *element_types (
element_trait): The list of types held by the argument pack.
Implemented traits
AnyType,
Sized,
UnknownDestructibility
Methods
__del__
__del__(owned self)
Destructor that releases elements if owned.
__getitem__
__getitem__[index: Int](self) -> ref [origin] element_types[index.value]
Return a reference to an element of the pack.
Parameters:
- index (
Int): The element of the pack to return.
Returns:
A reference to the element. The Pointer's mutability follows the mutability of the pack argument convention.
__len__
static __len__() -> Int
Return the VariadicPack length.
Returns:
The number of elements in the variadic pack.
__len__(self) -> Int
Return the VariadicPack length.
Returns:
The number of elements in the variadic pack.
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