Method ReportKwargsError

oneflow/api/python/functional/python_arg_parser.cpp:24–49

namespace functional {

void FunctionSchema::ReportKwargsError(PyObject* kwargs, size_t nargs) const {
  PyObject *key = nullptr, *value = nullptr;
  Py_ssize_t pos = 0;

  while (PyDict_Next(kwargs, &pos, &key, &value)) {
    if (!PyStringCheck(key)) { THROW(TypeError) << def_->name << "(): keywords must be strings"; }
    int64_t index = -1;
    const std::string string_key = PyStringAsString(key);
    for (int i = 0; i < def_->argument_def.size(); ++i) {
      const auto& arg = def_->argument_def[i];
      if (arg.name == string_key) {
        index = i;
        break;
      }
    }
    if (index < 0) {
      THROW(TypeError) << def_->name << "(): got an unexpected keyword argument '" << string_key
                       << "'";
    }
    if (index < nargs) {
      THROW(TypeError) << def_->name << "(): got multiple values for argument '" << string_key
                       << "'";
    }
  }
  THROW(TypeError) << def_->name << "(): kwargs unknown error";
}

// The argument parsing refers to the implementation of Pytorch.
bool FunctionSchema::Parse(PyObject* args, PyObject* kwargs, PythonArg* parsed_args,