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an API to create unique function names

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This commit is contained in:
Krasimir Angelov
2022-12-05 08:11:43 +01:00
parent a6aa6c2a5a
commit 8f7e4c084c
12 changed files with 284 additions and 84 deletions
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21
src/runtime/python/transactions.c
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@@ -134,16 +134,23 @@ Transaction_createFunction(TransactionObject *self, PyObject *args)
if (!PyArg_ParseTuple(args, "s#O!nf", &s, &size, &pgf_TypeType, &type, &arity, &prob))
return NULL;
PgfText *funname = CString_AsPgfText(s, size);
PgfText *name_pattern = CString_AsPgfText(s, size);
PgfExn err;
pgf_create_function(self->pgf->db, self->revision, funname, (PgfType) type, arity, NULL, prob, &marshaller, &err);
FreePgfText(funname);
PgfText *name =
pgf_create_function(self->pgf->db, self->revision, name_pattern, (PgfType) type, arity, NULL, prob, &marshaller, &err);
FreePgfText(name_pattern);
if (handleError(err) != PGF_EXN_NONE) {
return NULL;
}
Py_RETURN_NONE;
PyObject *py_name = PyUnicode_FromPgfText(name);
FreePgfText(name);
return py_name;
}
static PyObject *
@@ -340,7 +347,11 @@ static PyMethodDef Transaction_methods[] = {
{"__exit__", (PyCFunction)(void(*)(void))Transaction_exit, METH_FASTCALL, ""},
{"createFunction", (PyCFunction)Transaction_createFunction, METH_VARARGS,
"Create function"
"'createFunction(name,ty,arity,bytecode,prob)' creates a new abstract"
"syntax function with the given name, type, arity, etc. If the name"
"contains %d, %x or %a then the pattern is replaced with a random"
"number in base 10, 16, or 36, which guarantees that the name is"
"unique. The returned name is the final name after the substitution."
},
{"dropFunction", (PyCFunction)Transaction_dropFunction, METH_VARARGS,
"Drop function"