1 #include "Python.h" 2 #include "opcode.h" 3 4 /*[clinic input] 5 module _opcode 6 [clinic start generated code]*/ 7 /*[clinic end generated code: output=da39a3ee5e6b4b0d input=117442e66eb376e6]*/ 8 9 #include "clinic/_opcode.c.h" 10 11 /*[clinic input] 12 13 _opcode.stack_effect -> int 14 15 opcode: int 16 oparg: object = None 17 / 18 19 Compute the stack effect of the opcode. 20 [clinic start generated code]*/ 21 22 static int 23 _opcode_stack_effect_impl(PyObject *module, int opcode, PyObject *oparg) 24 /*[clinic end generated code: output=ad39467fa3ad22ce input=2d0a9ee53c0418f5]*/ 25 { 26 int effect; 27 int oparg_int = 0; 28 if (HAS_ARG(opcode)) { 29 if (oparg == Py_None) { 30 PyErr_SetString(PyExc_ValueError, 31 "stack_effect: opcode requires oparg but oparg was not specified"); 32 return -1; 33 } 34 oparg_int = (int)PyLong_AsLong(oparg); 35 if ((oparg_int == -1) && PyErr_Occurred()) 36 return -1; 37 } 38 else if (oparg != Py_None) { 39 PyErr_SetString(PyExc_ValueError, 40 "stack_effect: opcode does not permit oparg but oparg was specified"); 41 return -1; 42 } 43 effect = PyCompile_OpcodeStackEffect(opcode, oparg_int); 44 if (effect == PY_INVALID_STACK_EFFECT) { 45 PyErr_SetString(PyExc_ValueError, 46 "invalid opcode or oparg"); 47 return -1; 48 } 49 return effect; 50 } 51 52 53 54 55 static PyMethodDef 56 opcode_functions[] = { 57 _OPCODE_STACK_EFFECT_METHODDEF 58 {NULL, NULL, 0, NULL} 59 }; 60 61 62 static struct PyModuleDef opcodemodule = { 63 PyModuleDef_HEAD_INIT, 64 "_opcode", 65 "Opcode support module.", 66 -1, 67 opcode_functions, 68 NULL, 69 NULL, 70 NULL, 71 NULL 72 }; 73 74 PyMODINIT_FUNC 75 PyInit__opcode(void) 76 { 77 return PyModule_Create(&opcodemodule); 78 } 79
