#include "Python.h"

#include "code.h"
#include "Python-ast.h"
#include "symtable.h"

#include "clinic/symtablemodule.c.h"
/*[clinic input]
module _symtable
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=f4685845a7100605]*/


/*[clinic input]
_symtable.symtable

 str: str
 filename: object(converter='PyUnicode_FSDecoder')
 startstr: str
 /

Return symbol and scope dictionaries used internally by compiler.
[clinic start generated code]*/

static PyObject *
_symtable_symtable_impl(PyObject *module, const char *str,
 PyObject *filename, const char *startstr)
/*[clinic end generated code: output=914b369c9b785956 input=6c615e84d5f408e3]*/
{
 struct symtable *st;
 PyObject *t;
 int start;

 if (strcmp(startstr, "exec") == 0)
 start = Py_file_input;
 else if (strcmp(startstr, "eval") == 0)
 start = Py_eval_input;
 else if (strcmp(startstr, "single") == 0)
 start = Py_single_input;
 else {
 PyErr_SetString(PyExc_ValueError,
 "symtable() arg 3 must be 'exec' or 'eval' or 'single'");
 Py_DECREF(filename);
 return NULL;
 }
 st = Py_SymtableStringObject(str, filename, start);
 Py_DECREF(filename);
 if (st == NULL)
 return NULL;
 t = (PyObject *)st->st_top;
 Py_INCREF(t);
 PyMem_Free((void *)st->st_future);
 PySymtable_Free(st);
 return t;
}

static PyMethodDef symtable_methods[] = {
 _SYMTABLE_SYMTABLE_METHODDEF
 {NULL, NULL} /* sentinel */
};

static struct PyModuleDef symtablemodule = {
 PyModuleDef_HEAD_INIT,
 "_symtable",
 NULL,
 -1,
 symtable_methods,
 NULL,
 NULL,
 NULL,
 NULL
};

PyMODINIT_FUNC
PyInit__symtable(void)
{
 PyObject *m;

 if (PyType_Ready(&PySTEntry_Type) < 0)
 return NULL;

 m = PyModule_Create(&symtablemodule);
 if (m == NULL)
 return NULL;
 PyModule_AddIntMacro(m, USE);
 PyModule_AddIntMacro(m, DEF_GLOBAL);
 PyModule_AddIntMacro(m, DEF_LOCAL);
 PyModule_AddIntMacro(m, DEF_PARAM);
 PyModule_AddIntMacro(m, DEF_FREE);
 PyModule_AddIntMacro(m, DEF_FREE_CLASS);
 PyModule_AddIntMacro(m, DEF_IMPORT);
 PyModule_AddIntMacro(m, DEF_BOUND);
 PyModule_AddIntMacro(m, DEF_ANNOT);

 PyModule_AddIntConstant(m, "TYPE_FUNCTION", FunctionBlock);
 PyModule_AddIntConstant(m, "TYPE_CLASS", ClassBlock);
 PyModule_AddIntConstant(m, "TYPE_MODULE", ModuleBlock);

 PyModule_AddIntMacro(m, LOCAL);
 PyModule_AddIntMacro(m, GLOBAL_EXPLICIT);
 PyModule_AddIntMacro(m, GLOBAL_IMPLICIT);
 PyModule_AddIntMacro(m, FREE);
 PyModule_AddIntMacro(m, CELL);

 PyModule_AddIntConstant(m, "SCOPE_OFF", SCOPE_OFFSET);
 PyModule_AddIntMacro(m, SCOPE_MASK);

 if (PyErr_Occurred()) {
 Py_DECREF(m);
 m = 0;
 }
 return m;
}