``multiple-statements`` no longer triggers for function stubs using inlined ``...`` (#7863)

Co-authored-by: Mark Byrne <31762852+mbyrnepr2@users.noreply.github.com>
Co-authored-by: Pierre Sassoulas <pierre.sassoulas@gmail.com>

6 files changed, 10 insertions, 15 deletions

diff --git a/doc/whatsnew/fragments/7860.false_positive b/doc/whatsnew/fragments/7860.false_positive
new file mode 100644
index 000000000..c76425c54
--- /dev/null
+++ b/doc/whatsnew/fragments/7860.false_positive
@@ -0,0 +1,3 @@
+``multiple-statements`` no longer triggers for function stubs using inlined ``...``.
+
+Closes #7860
diff --git a/pylint/checkers/format.py b/pylint/checkers/format.py
index cde34b5d7..001330b2b 100644
--- a/pylint/checkers/format.py
+++ b/pylint/checkers/format.py
@@ -22,12 +22,7 @@ from typing import TYPE_CHECKING
 from astroid import nodes
 
 from pylint.checkers import BaseRawFileChecker, BaseTokenChecker
-from pylint.checkers.utils import (
-    is_overload_stub,
-    is_protocol_class,
-    node_frame_class,
-    only_required_for_messages,
-)
+from pylint.checkers.utils import only_required_for_messages
 from pylint.constants import WarningScope
 from pylint.interfaces import HIGH
 from pylint.typing import MessageDefinitionTuple
@@ -563,15 +558,14 @@ class FormatChecker(BaseTokenChecker, BaseRawFileChecker):
         ):
             return
 
-        # Function overloads that use ``Ellipsis`` are exempted.
+        # Functions stubs with ``Ellipsis`` as body are exempted.
         if (
-            isinstance(node, nodes.Expr)
+            isinstance(node.parent, nodes.FunctionDef)
+            and isinstance(node, nodes.Expr)
             and isinstance(node.value, nodes.Const)
             and node.value.value is Ellipsis
         ):
-            frame = node.frame(future=True)
-            if is_overload_stub(frame) or is_protocol_class(node_frame_class(frame)):
-                return
+            return
 
         self.add_message("multiple-statements", node=node)
         self._visited_lines[line] = 2
diff --git a/tests/functional/m/multiple_statements.py b/tests/functional/m/multiple_statements.py
index 5b55eac42..c3252f797 100644
--- a/tests/functional/m/multiple_statements.py
+++ b/tests/functional/m/multiple_statements.py
@@ -27,4 +27,4 @@ finally:
 @overload
 def concat2(arg1: str) -> str: ...
 
-def concat2(arg1: str) -> str: ...  # [multiple-statements]
+def concat2(arg1: str) -> str: ...
diff --git a/tests/functional/m/multiple_statements.txt b/tests/functional/m/multiple_statements.txt
index 34d80508e..661314268 100644
--- a/tests/functional/m/multiple_statements.txt
+++ b/tests/functional/m/multiple_statements.txt
@@ -3,4 +3,3 @@ multiple-statements:9:9:9:13::More than one statement on a single line:UNDEFINED
 multiple-statements:13:26:13:30:MyError:More than one statement on a single line:UNDEFINED
 multiple-statements:15:26:15:31:MyError:More than one statement on a single line:UNDEFINED
 multiple-statements:17:26:17:31:MyError:More than one statement on a single line:UNDEFINED
-multiple-statements:30:31:30:34:concat2:More than one statement on a single line:UNDEFINED
diff --git a/tests/functional/m/multiple_statements_single_line.py b/tests/functional/m/multiple_statements_single_line.py
index 4a77d992e..93a470702 100644
--- a/tests/functional/m/multiple_statements_single_line.py
+++ b/tests/functional/m/multiple_statements_single_line.py
@@ -27,4 +27,4 @@ finally:
 @overload
 def concat2(arg1: str) -> str: ...
 
-def concat2(arg1: str) -> str: ...  # [multiple-statements]
+def concat2(arg1: str) -> str: ...
diff --git a/tests/functional/m/multiple_statements_single_line.txt b/tests/functional/m/multiple_statements_single_line.txt
index a28fc96c4..cac2f7eb2 100644
--- a/tests/functional/m/multiple_statements_single_line.txt
+++ b/tests/functional/m/multiple_statements_single_line.txt
@@ -1,3 +1,2 @@
 multiple-statements:9:9:9:13::More than one statement on a single line:UNDEFINED
 multiple-statements:17:26:17:31:MyError:More than one statement on a single line:UNDEFINED
-multiple-statements:30:31:30:34:concat2:More than one statement on a single line:UNDEFINED