static Tcl_Object copyObjectInstance( Tcl_Interp *interp, Tcl_Object source, const char *name, const char *nameSpace) { Tcl_Object result; result = Tcl_CopyObjectInstance(interp, source, name, nameSpace); if (result == NULL) { Tcl_AppendResult(interp, "ERROR: copy failed."); } return result; }
int TclOOCopyObjectCmd( ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const *objv) { Tcl_Object oPtr, o2Ptr; if (objc < 2 || objc > 3) { Tcl_WrongNumArgs(interp, 1, objv, "sourceName ?targetName?"); return TCL_ERROR; } oPtr = Tcl_GetObjectFromObj(interp, objv[1]); if (oPtr == NULL) { return TCL_ERROR; } /* * Create a cloned object of the correct class. Note that constructors are * not called. Also note that we must resolve the object name ourselves * because we do not want to create the object in the current namespace, * but rather in the context of the namespace of the caller of the overall * [oo::define] command. */ if (objc == 2) { o2Ptr = Tcl_CopyObjectInstance(interp, oPtr, NULL, NULL); } else { const char *name; Tcl_DString buffer; name = TclGetString(objv[2]); Tcl_DStringInit(&buffer); if (name[0]!=':' || name[1]!=':') { Interp *iPtr = (Interp *) interp; if (iPtr->varFramePtr != NULL) { Tcl_DStringAppend(&buffer, iPtr->varFramePtr->nsPtr->fullName, -1); } TclDStringAppendLiteral(&buffer, "::"); Tcl_DStringAppend(&buffer, name, -1); name = Tcl_DStringValue(&buffer); } o2Ptr = Tcl_CopyObjectInstance(interp, oPtr, name, NULL); Tcl_DStringFree(&buffer); } if (o2Ptr == NULL) { return TCL_ERROR; } /* * Return the name of the cloned object. */ Tcl_SetObjResult(interp, TclOOObjectName(interp, (Object *) o2Ptr)); return TCL_OK; }