PyCode_NewEmpty:
Most uses of PyCode_New found by http://www.google.com/codesearch?q=PyCode_New
are trying to build an empty code object, usually to put it in a dummy frame
object. This patch adds a PyCode_NewEmpty wrapper which lets the user specify
just the filename, function name, and first line number, instead of also
requiring lots of code internals.
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index e94b4cc..55f3fb8 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -107,6 +107,52 @@
return co;
}
+PyCodeObject *
+PyCode_NewEmpty(const char *filename, const char *funcname, int firstlineno)
+{
+ static PyObject *emptystring = NULL;
+ static PyObject *nulltuple = NULL;
+ PyObject *filename_ob = NULL;
+ PyObject *funcname_ob = NULL;
+ PyCodeObject *result = NULL;
+ if (emptystring == NULL) {
+ emptystring = PyString_FromString("");
+ if (emptystring == NULL)
+ goto failed;
+ }
+ if (nulltuple == NULL) {
+ nulltuple = PyTuple_New(0);
+ if (nulltuple == NULL)
+ goto failed;
+ }
+ funcname_ob = PyString_FromString(funcname);
+ if (funcname_ob == NULL)
+ goto failed;
+ filename_ob = PyString_FromString(filename);
+ if (filename_ob == NULL)
+ goto failed;
+
+ result = PyCode_New(0, /* argcount */
+ 0, /* nlocals */
+ 0, /* stacksize */
+ 0, /* flags */
+ emptystring, /* code */
+ nulltuple, /* consts */
+ nulltuple, /* names */
+ nulltuple, /* varnames */
+ nulltuple, /* freevars */
+ nulltuple, /* cellvars */
+ filename_ob, /* filename */
+ funcname_ob, /* name */
+ firstlineno, /* firstlineno */
+ emptystring /* lnotab */
+ );
+
+failed:
+ Py_XDECREF(funcname_ob);
+ Py_XDECREF(filename_ob);
+ return result;
+}
#define OFF(x) offsetof(PyCodeObject, x)