Title here
Summary here
Struct Embedding in Assembly Language
Embedding Structs and Methods in Python
Python supports a form of composition through object attributes. While Python doesn’t have explicit struct embedding like other languages, similar functionality can be achieved using class inheritance or including instances of one class as attributes of another.
class Base:
def __init__(self, num):
self.num = num
def describe(self):
return f"Base with num={self.num}"
class Container:
def __init__(self, num, string):
self.base = Base(num)
self.str = string
def main():
co = Container(1, "some name")
# Directly access the base's fields through the container
print(f"co={{num: {co.base.num}, str: {co.str}}}")
# Alternatively, access the base's fields explicitly
print(f"also num: {co.base.num}")
# Calling the describe method from Base through the Container
print(f"describe: {co.base.describe()}")
# Using a protocol (interface) in Python modeled with a class
class Describer:
def describe(self):
pass
# Assign co.base to a variable of type Describer to show interface implementation
d = co.base
print(f"describer: {d.describe()}")
if __name__ == "__main__":
main()To run the program, save it in a file named struct_embedding.py and use Python to execute it.
$ python struct_embedding.pyThis will produce the following output:
co={num: 1, str: some name}
also num: 1
describe: Base with num=1
describer: Base with num=1By utilizing class inheritance, object attributes, and Python’s dynamic nature, we can achieve functionality similar to struct embedding and method extension.