fix(profiling): get_frame_name only look at arguments (#1684)

Looking for `self` and `cls` is not sufficient because they may have come from
an outer scope. Make sure to check that they are coming from the frame's
positional arguments.

Co-authored-by: Anton Pirker <anton.pirker@sentry.io>

Author: Zylphrex

sentry_sdk/profiler.py

@@ -202,22 +202,35 @@ def get_frame_name(frame):
     # in 3.11+, there is a frame.f_code.co_qualname that
     # we should consider using instead where possible
 
+    f_code = frame.f_code
     # co_name only contains the frame name.  If the frame was a method,
     # the class name will NOT be included.
-    name = frame.f_code.co_name
+    name = f_code.co_name
 
     # if it was a method, we can get the class name by inspecting
     # the f_locals for the `self` argument
     try:
-        if "self" in frame.f_locals:
+        if (
+            # the co_varnames start with the frame's positional arguments
+            # and we expect the first to be `self` if its an instance method
+            f_code.co_varnames
+            and f_code.co_varnames[0] == "self"
+            and "self" in frame.f_locals
+        ):
             return "{}.{}".format(frame.f_locals["self"].__class__.__name__, name)
     except AttributeError:
         pass
 
     # if it was a class method, (decorated with `@classmethod`)
     # we can get the class name by inspecting the f_locals for the `cls` argument
     try:
-        if "cls" in frame.f_locals:
+        if (
+            # the co_varnames start with the frame's positional arguments
+            # and we expect the first to be `cls` if its a class method
+            f_code.co_varnames
+            and f_code.co_varnames[0] == "cls"
+            and "cls" in frame.f_locals
+        ):
             return "{}.{}".format(frame.f_locals["cls"].__name__, name)
     except AttributeError:
         pass

tests/test_profiler.py

@@ -85,10 +85,25 @@ class GetFrame:
     def instance_method(self):
         return inspect.currentframe()
 
+    def instance_method_wrapped(self):
+        def wrapped():
+            self
+            return inspect.currentframe()
+
+        return wrapped
+
     @classmethod
     def class_method(cls):
         return inspect.currentframe()
 
+    @classmethod
+    def class_method_wrapped(cls):
+        def wrapped():
+            cls
+            return inspect.currentframe()
+
+        return wrapped
+
     @staticmethod
     def static_method():
         return inspect.currentframe()
@@ -112,11 +127,21 @@ def static_method():
             "GetFrame.instance_method",
             id="instance_method",
         ),
+        pytest.param(
+            GetFrame().instance_method_wrapped()(),
+            "wrapped",
+            id="instance_method_wrapped",
+        ),
         pytest.param(
             GetFrame().class_method(),
             "GetFrame.class_method",
             id="class_method",
         ),
+        pytest.param(
+            GetFrame().class_method_wrapped()(),
+            "wrapped",
+            id="class_method_wrapped",
+        ),
         pytest.param(
             GetFrame().static_method(),
             "GetFrame.static_method",