python
diff --git a/‎Include/cpython/frameobject.h‎
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Lines changed: 10 additions & 0 deletions
diff --git a/‎Misc/NEWS.d/next/Core and Builtins/2022-04-13-11-15-09.gh-issue-91502.11YXHQ.rst‎
Lines changed: 2 additions & 0 deletions b/‎Misc/NEWS.d/next/Core and Builtins/2022-04-13-11-15-09.gh-issue-91502.11YXHQ.rst‎
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diff --git a/‎Objects/frameobject.c‎
Lines changed: 8 additions & 0 deletions b/‎Objects/frameobject.c‎
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@@ -19,6 +19,16 @@ PyAPI_FUNC(PyFrameObject *) PyFrame_New(PyThreadState *, PyCodeObject *,
 
 PyAPI_FUNC(void) PyFrame_LocalsToFast(PyFrameObject *, int);
 
+/* -- Caveat emptor --
+ * The concept of entry frames is an implementation detail of the CPython
+ * interpreter. This API is considered unstable and is provided for the
+ * convenience of debuggers, profilers and state-inspecting tools. Notice that
+ * this API can be changed in future minor versions if the underlying frame
+ * mechanism change or the concept of an 'entry frame' or its semantics becomes
+ * obsolete or outdated. */
+
+PyAPI_FUNC(int) _PyFrame_IsEntryFrame(PyFrameObject *frame);
+
 PyAPI_FUNC(int) PyFrame_FastToLocalsWithError(PyFrameObject *f);
 PyAPI_FUNC(void) PyFrame_FastToLocals(PyFrameObject *);
 
 
@@ -0,0 +1,2 @@
+Add a new :c:func:`_PyFrame_IsEntryFrame` API function, to check if a
+:c:type:`PyFrameObject` is an entry frame. Patch by Pablo Galindo.
@@ -1104,6 +1104,14 @@ PyFrame_LocalsToFast(PyFrameObject *f, int clear)
     }
 }
 
+
+int _PyFrame_IsEntryFrame(PyFrameObject *frame)
+{
+    assert(frame != NULL);
+    return frame->f_frame->is_entry;
+}
+
+
 PyCodeObject *
 PyFrame_GetCode(PyFrameObject *frame)
 {
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Add a new :c:func:`_PyFrame_IsEntryFrame` API function, to check if a
	`2`	+:c:type:`PyFrameObject` is an entry frame. Patch by Pablo Galindo.
Original file line number	Diff line number	Diff line change
`@@ -1104,6 +1104,14 @@ PyFrame_LocalsToFast(PyFrameObject *f, int clear)`
`1104`	`1104`	`}`
`1105`	`1105`	`}`
`1106`	`1106`
	`1107`	`+`
	`1108`	`+int _PyFrame_IsEntryFrame(PyFrameObject *frame)`
	`1109`	`+{`
	`1110`	`+ assert(frame != NULL);`
	`1111`	`+ return frame->f_frame->is_entry;`
	`1112`	`+}`
	`1113`	`+`
	`1114`	`+`
`1107`	`1115`	`PyCodeObject *`
`1108`	`1116`	`PyFrame_GetCode(PyFrameObject *frame)`
`1109`	`1117`	`{`