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