Refactor raw_svector_stream_helper

newbinding/include/llvm_binding/extra.h

@@ -1,15 +1,36 @@
 #include <Python.h>
 #include <llvm/ADT/SmallVector.h>
+#include <llvm/Support/raw_ostream.h>
 
 static
-PyObject* small_vector_from_types(PyObject* self, PyObject* args) {
+PyObject* make_raw_ostream_for_printing(PyObject* self, PyObject* args) {
+    using llvm::raw_svector_ostream_helper;
+    using llvm::raw_svector_ostream;
+    
+    if (!PyArg_ParseTuple(args, "")) {
+        return NULL;
+    }
+    raw_svector_ostream* RSOH = raw_svector_ostream_helper::create();
+    return pycapsule_new(RSOH, "llvm::raw_ostream",
+                         "llvm::raw_svector_ostream");
+}
+
+static
+PyObject* make_small_vector_from_types(PyObject* self, PyObject* args) {
     using llvm::Type;
     using llvm::SmallVector_Type;
+    
     SmallVector_Type* SV = new SmallVector_Type;
     Py_ssize_t size = PyTuple_Size(args);
     for (Py_ssize_t i = 0; i < size; ++i) {
         PyObject* cap = PyTuple_GetItem(args, i);
+        if (!cap) {
+            return NULL;
+        }
         Type* type = (Type*)PyCapsule_GetPointer(cap, "llvm::Type");
+        if (!type) {
+            return NULL;
+        }
         SV->push_back(type);
     }
     return pycapsule_new(SV, "llvm::SmallVector_Type");
@@ -17,7 +38,8 @@ PyObject* small_vector_from_types(PyObject* self, PyObject* args) {
 
 static PyMethodDef extra_methodtable[] = {
 #define method(func) { #func, (PyCFunction)func, METH_VARARGS, NULL }
-method( small_vector_from_types ),
+method( make_raw_ostream_for_printing ),
+method( make_small_vector_from_types ),
 { NULL }
 #undef method
 };