Add descriptors to @classmethod and @staticmethod

Author: ChJR

vm/src/builtins/classmethod.rs

@@ -100,6 +100,36 @@ impl PyClassMethod {
         self.callable.lock().clone()
     }
 
+    #[pyproperty(magic)]
+    fn wrapped(&self) -> PyObjectRef {
+        self.callable.clone()
+    }
+
+    #[pyproperty(magic)]
+    fn module(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__module__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn qualname(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__qualname__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn name(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__name__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn annotations(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__annotations__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn doc(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__doc__", vm)
+    }
+
     #[pyproperty(magic)]
     fn isabstractmethod(&self, vm: &VirtualMachine) -> PyObjectRef {
         match vm.get_attribute_opt(self.callable.lock().clone(), "__isabstractmethod__") {

vm/src/builtins/staticmethod.rs

@@ -73,6 +73,36 @@ impl PyStaticMethod {
         self.callable.clone()
     }
 
+    #[pyproperty(magic)]
+    fn wrapped(&self) -> PyObjectRef {
+        self.callable.clone()
+    }
+
+    #[pyproperty(magic)]
+    fn module(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__module__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn qualname(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__qualname__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn name(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__name__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn annotations(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__annotations__", vm)
+    }
+
+    #[pyproperty(magic)]
+    fn doc(&self, vm: &VirtualMachine) -> PyResult {
+        self.callable.get_attr("__doc__", vm)
+    }
+
     #[pyproperty(magic)]
     fn isabstractmethod(&self, vm: &VirtualMachine) -> PyObjectRef {
         match vm.get_attribute_opt(self.callable.clone(), "__isabstractmethod__") {