1  /*[clinic input]
       2  preserve
       3  [clinic start generated code]*/
       4  
       5  #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
       6  #  include "pycore_gc.h"            // PyGC_Head
       7  #  include "pycore_runtime.h"       // _Py_ID()
       8  #endif
       9  
      10  
      11  PyDoc_STRVAR(func_new__doc__,
      12  "function(code, globals, name=None, argdefs=None, closure=None)\n"
      13  "--\n"
      14  "\n"
      15  "Create a function object.\n"
      16  "\n"
      17  "  code\n"
      18  "    a code object\n"
      19  "  globals\n"
      20  "    the globals dictionary\n"
      21  "  name\n"
      22  "    a string that overrides the name from the code object\n"
      23  "  argdefs\n"
      24  "    a tuple that specifies the default argument values\n"
      25  "  closure\n"
      26  "    a tuple that supplies the bindings for free variables");
      27  
      28  static PyObject *
      29  func_new_impl(PyTypeObject *type, PyCodeObject *code, PyObject *globals,
      30                PyObject *name, PyObject *defaults, PyObject *closure);
      31  
      32  static PyObject *
      33  func_new(PyTypeObject *type, PyObject *args, PyObject *kwargs)
      34  {
      35      PyObject *return_value = NULL;
      36      #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
      37  
      38      #define NUM_KEYWORDS 5
      39      static struct {
      40          PyGC_Head _this_is_not_used;
      41          PyObject_VAR_HEAD
      42          PyObject *ob_item[NUM_KEYWORDS];
      43      } _kwtuple = {
      44          .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
      45          .ob_item = { &_Py_ID(code), &_Py_ID(globals), &_Py_ID(name), &_Py_ID(argdefs), &_Py_ID(closure), },
      46      };
      47      #undef NUM_KEYWORDS
      48      #define KWTUPLE (&_kwtuple.ob_base.ob_base)
      49  
      50      #else  // !Py_BUILD_CORE
      51      #  define KWTUPLE NULL
      52      #endif  // !Py_BUILD_CORE
      53  
      54      static const char * const _keywords[] = {"code", "globals", "name", "argdefs", "closure", NULL};
      55      static _PyArg_Parser _parser = {
      56          .keywords = _keywords,
      57          .fname = "function",
      58          .kwtuple = KWTUPLE,
      59      };
      60      #undef KWTUPLE
      61      PyObject *argsbuf[5];
      62      PyObject * const *fastargs;
      63      Py_ssize_t nargs = PyTuple_GET_SIZE(args);
      64      Py_ssize_t noptargs = nargs + (kwargs ? PyDict_GET_SIZE(kwargs) : 0) - 2;
      65      PyCodeObject *code;
      66      PyObject *globals;
      67      PyObject *name = Py_None;
      68      PyObject *defaults = Py_None;
      69      PyObject *closure = Py_None;
      70  
      71      fastargs = _PyArg_UnpackKeywords(_PyTuple_CAST(args)->ob_item, nargs, kwargs, NULL, &_parser, 2, 5, 0, argsbuf);
      72      if (!fastargs) {
      73          goto exit;
      74      }
      75      if (!PyObject_TypeCheck(fastargs[0], &PyCode_Type)) {
      76          _PyArg_BadArgument("function", "argument 'code'", (&PyCode_Type)->tp_name, fastargs[0]);
      77          goto exit;
      78      }
      79      code = (PyCodeObject *)fastargs[0];
      80      if (!PyDict_Check(fastargs[1])) {
      81          _PyArg_BadArgument("function", "argument 'globals'", "dict", fastargs[1]);
      82          goto exit;
      83      }
      84      globals = fastargs[1];
      85      if (!noptargs) {
      86          goto skip_optional_pos;
      87      }
      88      if (fastargs[2]) {
      89          name = fastargs[2];
      90          if (!--noptargs) {
      91              goto skip_optional_pos;
      92          }
      93      }
      94      if (fastargs[3]) {
      95          defaults = fastargs[3];
      96          if (!--noptargs) {
      97              goto skip_optional_pos;
      98          }
      99      }
     100      closure = fastargs[4];
     101  skip_optional_pos:
     102      return_value = func_new_impl(type, code, globals, name, defaults, closure);
     103  
     104  exit:
     105      return return_value;
     106  }
     107  /*[clinic end generated code: output=777cead7b1f6fad3 input=a9049054013a1b77]*/