mt.base.casting

Registry to store all the cast functions to cast an object from type A to type B.

Functions

• cast(): Casts an object to a target type.

• castable(): Checks if an object can be cast to a target type.

• register_cast(): Registers a function to cast an object from type A to type B.

• register_castable(): registers a function to check if we can cast an object from type A to type B.

mt.base.casting.cast(obj, dst_type)

Casts an object to a target type.

Parameters:

• obj (object) – object to be cast

• dst_type (type) – type or class to cast to

Returns:

the cast version of obj

Return type:

object

Raises:

NotImplementedError – if the cast function has not been registered using function register_cast

mt.base.casting.castable(obj, dst_type)

Checks if an object can be cast to a target type.

Parameters:

• obj (object) – object to be cast

• dst_type (type) – type or class to cast to

Returns:

whether or not the object is castable to dst_type

Return type:

bool

mt.base.casting.register_cast(src_type, dst_type, func)

Registers a function to cast an object from type A to type B.

Parameters:

• src_type (type) – type or class to cast from

• dst_type (type) – type or class to cast to

• func (function) – cast function to register

mt.base.casting.register_castable(src_type, dst_type, func)

registers a function to check if we can cast an object from type A to type B.

Parameters:

• src_type (type) – type or class to cast from

• dst_type (type) – type or class to cast to

• func (function) – castable function to register