Mojo trait
ImplicitlyBoolable
The ImplicitlyBoolable trait describes a type that can be implicitly converted to a Bool.
Types conforming to this trait can be passed to a function that expects a
Bool without explicitly converting to it. Accordingly, most types should
conform to Boolable instead, since implicit conversions to Bool can have
unintuitive consequences.
This trait requires the type to implement the __as_bool__() method. For
example:
struct Foo(ImplicitlyBoolable):
var val: Bool
fn __as_bool__(self) -> Bool:
return self.val
fn __bool__(self) -> Bool:
return self.__as_bool__()Implemented traits
AnyType,
Boolable,
UnknownDestructibility
Aliases
__del__is_trivial
alias __del__is_trivial
A flag (often compiler generated) to indicate whether the implementation of __del__ is trivial.
The implementation of __del__ is considered to be trivial if:
- The struct has a compiler-generated trivial destructor and all its fields
have a trivial
__del__method.
In practice, it means that the __del__ can be considered as no-op.
Required methods
__bool__
__bool__(self: _Self) -> Bool
Get the boolean representation of the value.
Returns:
Bool: The boolean representation of the value.
__as_bool__
__as_bool__(self: _Self) -> Bool
Get the boolean representation of the value.
Returns:
Bool: The boolean representation of the value.
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