PyAPI: add utilities PyTuple_SET_ITEMS, Py_INCREF_RET

Setting all values of a tuple is such a common operation that it deserves its own macro.
Also added Py_INCREF_RET to avoid confusing use of comma operator.

source/blender/python/intern/bpy_app.c

@@ -50,6 +50,7 @@
 #include "BKE_global.h"
 
 #include "../generic/py_capi_utils.h"
+#include "../generic/python_utildefines.h"
 
 #ifdef BUILD_DATE
 extern char build_date[];
@@ -264,8 +265,7 @@ static PyObject *bpy_app_driver_dict_get(PyObject *UNUSED(self), void *UNUSED(cl
 		}
 	}
 
-	Py_INCREF(bpy_pydriver_Dict);
-	return bpy_pydriver_Dict;
+	return Py_INCREF_RET(bpy_pydriver_Dict);
 }
 
 static PyObject *bpy_app_autoexec_fail_message_get(PyObject *UNUSED(self), void *UNUSED(closure))

source/blender/python/intern/bpy_app_handlers.c

@@ -37,6 +37,8 @@
 #include "bpy_rna.h"
 #include "bpy_app_handlers.h"
 
+#include "../generic/python_utildefines.h"
+
 #include "BPY_extern.h"
 
 void bpy_app_generic_callback(struct Main *main, struct ID *id, void *arg);
@@ -306,8 +308,7 @@ void bpy_app_generic_callback(struct Main *UNUSED(main), struct ID *id, void *ar
 			PyTuple_SET_ITEM(args, 0, pyrna_struct_CreatePyObject(&id_ptr));
 		}
 		else {
-			PyTuple_SET_ITEM(args, 0, Py_None);
-			Py_INCREF(Py_None);
+			PyTuple_SET_ITEM(args, 0, Py_INCREF_RET(Py_None));
 		}
 
 		/* Iterate the list and run the callbacks

source/blender/python/intern/bpy_app_translations.c

@@ -45,6 +45,7 @@
 
 #include "RNA_types.h"
 
+#include "../generic/python_utildefines.h"
 
 typedef struct
 {
@@ -406,7 +407,7 @@ static PyObject *app_translations_contexts_make(void)
 	}
 
 #define SetObjString(item) PyStructSequence_SET_ITEM(translations_contexts, pos++, PyUnicode_FromString((item)))
-#define SetObjNone() Py_INCREF(Py_None); PyStructSequence_SET_ITEM(translations_contexts, pos++, Py_None)
+#define SetObjNone() PyStructSequence_SET_ITEM(translations_contexts, pos++, Py_INCREF_RET(Py_None))
 
 	for (ctxt = _contexts; ctxt->c_id; ctxt++) {
 		if (ctxt->value) {
@@ -516,9 +517,7 @@ static PyObject *_py_pgettext(PyObject *args, PyObject *kw, const char *(*_pgett
 		return NULL;
 	}
 
-	Py_INCREF(msgid);
-
-	return msgid;
+	return Py_INCREF_RET(msgid);
 #endif
 }
 

source/blender/python/intern/bpy_library.c

@@ -53,6 +53,8 @@
 #include "bpy_util.h"
 #include "bpy_library.h"
 
+#include "../generic/python_utildefines.h"
+
 /* nifty feature. swap out strings for RNA data */
 #define USE_RNA_DATABLOCKS
 
@@ -274,10 +276,9 @@ static PyObject *bpy_lib_enter(BPy_Library *self, PyObject *UNUSED(args))
 
 	/* return pair */
 	ret = PyTuple_New(2);
-
-	PyTuple_SET_ITEM(ret, 0, (PyObject *)self_from);
-
-	PyTuple_SET_ITEM(ret, 1, (PyObject *)self);
+	PyTuple_SET_ITEMS(ret,
+	        (PyObject *)self_from,
+	        (PyObject *)self);
 	Py_INCREF(self);
 
 	BKE_reports_clear(&reports);
@@ -362,8 +363,7 @@ static PyObject *bpy_lib_exit(BPy_Library *self, PyObject *UNUSED(args))
 								/* just warn for now */
 								/* err = -1; */
 #ifdef USE_RNA_DATABLOCKS
-								item = Py_None;
-								Py_INCREF(item);
+								item = Py_INCREF_RET(Py_None);
 #endif
 							}
 
@@ -375,8 +375,7 @@ static PyObject *bpy_lib_exit(BPy_Library *self, PyObject *UNUSED(args))
 							PyErr_Clear();
 
 #ifdef USE_RNA_DATABLOCKS
-							item = Py_None;
-							Py_INCREF(item);
+							item = Py_INCREF_RET(Py_None);
 #endif
 						}
 

source/blender/python/intern/bpy_operator.c

@@ -44,6 +44,7 @@
 #include "bpy_rna.h" /* for setting arg props only - pyrna_py_to_prop() */
 #include "bpy_util.h"
 #include "../generic/bpy_internal_import.h"
+#include "../generic/python_utildefines.h"
 
 #include "RNA_access.h"
 #include "RNA_enum_types.h"
@@ -127,9 +128,8 @@ static PyObject *pyop_poll(PyObject *UNUSED(self), PyObject *args)
 	/* restore with original context dict, probably NULL but need this for nested operator calls */
 	Py_XDECREF(context_dict);
 	CTX_py_dict_set(C, (void *)context_dict_back);
-	
-	Py_INCREF(ret);
-	return ret;
+
+	return Py_INCREF_RET(ret);
 }
 
 static PyObject *pyop_call(PyObject *UNUSED(self), PyObject *args)

source/blender/python/intern/bpy_rna.c

@@ -76,6 +76,7 @@
 
 #include "../generic/idprop_py_api.h" /* for IDprop lookups */
 #include "../generic/py_capi_utils.h"
+#include "../generic/python_utildefines.h"
 
 #define USE_PEDANTIC_WRITE
 #define USE_MATHUTILS
@@ -805,7 +806,7 @@ static PyObject *pyrna_struct_richcmp(PyObject *a, PyObject *b, int op)
 			return NULL;
 	}
 
-	return Py_INCREF(res), res;
+	return Py_INCREF_RET(res);
 }
 
 static PyObject *pyrna_prop_richcmp(PyObject *a, PyObject *b, int op)
@@ -835,7 +836,7 @@ static PyObject *pyrna_prop_richcmp(PyObject *a, PyObject *b, int op)
 			return NULL;
 	}
 
-	return Py_INCREF(res), res;
+	return Py_INCREF_RET(res);
 }
 
 /*----------------------repr--------------------------------------------*/
@@ -4223,7 +4224,7 @@ static PyObject *pyrna_struct_get(BPy_StructRNA *self, PyObject *args)
 		}
 	}
 
-	return Py_INCREF(def), def;
+	return Py_INCREF_RET(def);
 }
 
 PyDoc_STRVAR(pyrna_struct_as_pointer_doc,
@@ -4285,7 +4286,7 @@ static PyObject *pyrna_prop_collection_get(BPy_PropertyRNA *self, PyObject *args
 		             Py_TYPE(key_ob)->tp_name);
 	}
 
-	return Py_INCREF(def), def;
+	return Py_INCREF_RET(def);
 }
 
 PyDoc_STRVAR(pyrna_prop_collection_find_doc,
@@ -4798,8 +4799,7 @@ static PyObject *pyrna_prop_new(PyTypeObject *type, PyObject *args, PyObject *UN
 		return NULL;
 
 	if (type == Py_TYPE(base)) {
-		Py_INCREF(base);
-		return (PyObject *)base;
+		return Py_INCREF_RET((PyObject *)base);
 	}
 	else if (PyType_IsSubtype(type, &pyrna_prop_Type)) {
 		BPy_PropertyRNA *ret = (BPy_PropertyRNA *) type->tp_alloc(type, 0);
@@ -6283,7 +6283,7 @@ static PyObject *pyrna_srna_Subtype(StructRNA *srna)
 
 			/* arg[1] (bases=...) */
 			PyTuple_SET_ITEM(args, 1, item = PyTuple_New(1));
-			PyTuple_SET_ITEM(item, 0, py_base); Py_INCREF(py_base);
+			PyTuple_SET_ITEM(item, 0, Py_INCREF_RET(py_base));
 
 
 			/* arg[2] (dict=...) */