+
Point of view
INTERNALS_HANDLER
deferred class DRAWABLE
- std_width > 0
- std_height > 0
frozen
effective function
frozen
effective function
frozen
effective function
frozen
effective function
frozen
effective function
ensure
-
good_hash_value: Result >= 0
is_equal (other: DRAWABLE):
BOOLEAN
deferred function
require
ensure
- Result implies hash_code = other.hash_code
-
commutative: generating_type = other.generating_type implies Result = other.is_equal(Current)