feat: advance-my-method

Author: GreyElaina

challenges/advance-my-method/question.py

@@ -0,0 +1,43 @@
+"""
+TODO:
+
+a method-like descriptor, implements the `__get__` only.
+"""
+from typing import ParamSpec, TypeVar, Concatenate, Callable, Generic
+
+P = ParamSpec("P")
+T = TypeVar("T")
+R = TypeVar("R")
+
+class MyMethod(Generic[T, P, R]):
+    def __init__(self, func: Callable[Concatenate[T, P], R]) -> None:
+        self.func = func
+    
+    def __get__(self, instance, owner) -> None:
+        return
+
+
+
+def should_pass():
+    class Foo:
+        @MyMethod
+        def do_something(self, value: int) -> None:
+            ...
+
+    foo = Foo()
+
+    Foo.do_something(foo, 1111)
+    foo.do_something(1111)
+
+
+def should_fail():
+    class Foo:
+        @MyMethod
+        def do_something(self, value: int) -> None:
+            ...
+
+    foo = Foo()
+
+    Foo.do_something(1111)
+    foo.do_something(11111, foo)
+    foo.do_something(foo, 11111)