Mojo trait
Movable
The Movable trait denotes a type whose value can be moved.
Implement the Movable trait on Foo which requires the __moveinit__
method:
struct Foo(Movable):
fn __init__(out self):
pass
fn __moveinit__(out self, deinit existing: Self):
print("moving")
struct Foo(Movable):
fn __init__(out self):
pass
fn __moveinit__(out self, deinit existing: Self):
print("moving")
You can now use the ^ suffix to move the object instead of copying it inside generic functions:
fn return_foo[T: Movable](var foo: T) -> T:
return foo^
var foo = Foo()
var res = return_foo(foo^)
fn return_foo[T: Movable](var foo: T) -> T:
return foo^
var foo = Foo()
var res = return_foo(foo^)
moving
moving
Implemented traits
AnyType,
UnknownDestructibility
Methods
__moveinit__
__moveinit__(out self: _Self, var existing: _Self, /)
Create a new instance of the value by moving the value of another.
Args:
- existing (
_Self): The value to move.
Returns:
_Self
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