Implement PyException_Get/SetArgs

Author: msimacek

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/cext/PythonCextErrBuiltins.java

@@ -501,4 +501,27 @@ Object setTraceback(Object exc, Object traceback,
             return 0;
         }
     }
+
+    @CApiBuiltin(ret = PyObjectTransfer, args = {PyObject}, call = Direct)
+    abstract static class PyException_GetArgs extends CApiUnaryBuiltinNode {
+
+        @Specialization
+        static Object get(Object exc,
+                        @Bind Node inliningTarget,
+                        @Cached ExceptionNodes.GetArgsNode getArgsNode) {
+            return getArgsNode.execute(inliningTarget, exc);
+        }
+    }
+
+    @CApiBuiltin(ret = Void, args = {PyObject, PyObject}, call = Direct)
+    abstract static class PyException_SetArgs extends CApiBinaryBuiltinNode {
+
+        @Specialization
+        static Object set(PBaseException exc, PTuple args,
+                        @Bind Node inliningTarget,
+                        @Cached ExceptionNodes.SetArgsNode setArgsNode) {
+            setArgsNode.execute(inliningTarget, exc, args);
+            return PNone.NO_VALUE;
+        }
+    }
 }

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/CApiFunction.java

@@ -1262,8 +1262,6 @@ public final class CApiFunction {
     @CApiBuiltin(name = "PyErr_SetRaisedException", ret = Void, args = {PyObjectRawPointer}, call = CImpl)
     @CApiBuiltin(name = "PyEval_SetProfileAllThreads", ret = Void, args = {PY_TRACEFUNC, PyObjectRawPointer}, call = NotImplemented)
     @CApiBuiltin(name = "PyEval_SetTraceAllThreads", ret = Void, args = {PY_TRACEFUNC, PyObjectRawPointer}, call = NotImplemented)
-    @CApiBuiltin(name = "PyException_GetArgs", ret = PyObjectRawPointer, args = {PyObjectRawPointer}, call = NotImplemented)
-    @CApiBuiltin(name = "PyException_SetArgs", ret = Void, args = {PyObjectRawPointer, PyObjectRawPointer}, call = NotImplemented)
     @CApiBuiltin(name = "PyFrame_GetVar", ret = PyObjectRawPointer, args = {PyFrameObjectBorrowed, PyObjectRawPointer}, call = NotImplemented)
     @CApiBuiltin(name = "PyFrame_GetVarString", ret = PyObjectRawPointer, args = {PyFrameObjectBorrowed, ConstCharPtr}, call = NotImplemented)
     @CApiBuiltin(name = "PyFunction_AddWatcher", ret = PrimitiveResult32, args = {PyFunction_WatchCallback}, call = NotImplemented)