Always inline frozensetwriter_update_array()

Simplify writer_dealloc()

Author: vstinner

Modules/_testcapi/set.c

@@ -103,9 +103,7 @@ writer_dealloc(PyObject *self_raw)
 {
     WriterObject *self = (WriterObject *)self_raw;
     PyTypeObject *tp = Py_TYPE(self);
-    if (self->writer) {
-        PyFrozenSetWriter_Discard(self->writer);
-    }
+    PyFrozenSetWriter_Discard(self->writer);
     tp->tp_free(self);
     Py_DECREF(tp);
 }

Objects/setobject.c

@@ -3354,7 +3354,8 @@ PyFrozenSetWriter_Update(PyFrozenSetWriter *writer, PyObject *iterable)
 }
 
 
-static inline int
+// Force inlining to optimize "if (steal)" at build time
+static inline Py_ALWAYS_INLINE int
 frozensetwriter_update_array(PyFrozenSetWriter *writer,
                              PyObject *const *items, Py_ssize_t nitem,
                              int steal)