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bpo-37999: Simplify the conversion code for %c, %d, %x, etc. #20437

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merged 2 commits into from
Jun 29, 2020
Merged

bpo-37999: Simplify the conversion code for %c, %d, %x, etc. #20437

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02fb0b0
bpo-37999: Simplify the conversion code for %c, %d, %x, etc.
serhiy-storchaka May 26, 2020
c52b7f9
Merge branch 'master' into formatlong
serhiy-storchaka Jun 29, 2020
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19 changes: 6 additions & 13 deletions Objects/bytearrayobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -22,22 +22,15 @@ char _PyByteArray_empty_string[] = "";
static int
_getbytevalue(PyObject* arg, int *value)
{
long face_value;
int overflow;
long face_value = PyLong_AsLongAndOverflow(arg, &overflow);

if (PyLong_Check(arg)) {
face_value = PyLong_AsLong(arg);
} else {
PyObject *index = PyNumber_Index(arg);
if (index == NULL) {
*value = -1;
return 0;
}
face_value = PyLong_AsLong(index);
Py_DECREF(index);
if (face_value == -1 && PyErr_Occurred()) {
*value = -1;
return 0;
}

if (face_value < 0 || face_value >= 256) {
/* this includes the OverflowError in case the long is too large */
/* this includes an overflow in converting to C long */
PyErr_SetString(PyExc_ValueError, "byte must be in range(0, 256)");
*value = -1;
return 0;
Expand Down
31 changes: 9 additions & 22 deletions Objects/bytesobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -510,17 +510,14 @@ formatlong(PyObject *v, int flags, int prec, int type)
iobj = _PyNumber_Index(v);
else
iobj = PyNumber_Long(v);
if (iobj == NULL) {
if (!PyErr_ExceptionMatches(PyExc_TypeError))
return NULL;
}
else if (!PyLong_Check(iobj))
Py_CLEAR(iobj);
if (iobj != NULL) {
assert(PyLong_Check(iobj));
result = _PyUnicode_FormatLong(iobj, flags & F_ALT, prec, type);
Py_DECREF(iobj);
return result;
}
if (!PyErr_ExceptionMatches(PyExc_TypeError))
return NULL;
}
PyErr_Format(PyExc_TypeError,
"%%%c format: %s is required, not %.200s", type,
Expand All @@ -542,26 +539,16 @@ byte_converter(PyObject *arg, char *p)
return 1;
}
else {
PyObject *iobj;
long ival;
int overflow;
/* make sure number is a type of integer */
if (PyLong_Check(arg)) {
ival = PyLong_AsLongAndOverflow(arg, &overflow);
}
else {
iobj = PyNumber_Index(arg);
if (iobj == NULL) {
if (!PyErr_ExceptionMatches(PyExc_TypeError))
return 0;
long ival = PyLong_AsLongAndOverflow(arg, &overflow);
if (ival == -1 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_TypeError)) {
goto onError;
}
ival = PyLong_AsLongAndOverflow(iobj, &overflow);
Py_DECREF(iobj);
return 0;
}
if (!overflow && ival == -1 && PyErr_Occurred())
goto onError;
if (overflow || !(0 <= ival && ival <= 255)) {
if (!(0 <= ival && ival <= 255)) {
/* this includes an overflow in converting to C long */
PyErr_SetString(PyExc_OverflowError,
"%c arg not in range(256)");
return 0;
Expand Down
34 changes: 11 additions & 23 deletions Objects/unicodeobject.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14641,19 +14641,14 @@ mainformatlong(PyObject *v,
if (!PyLong_Check(v)) {
if (type == 'o' || type == 'x' || type == 'X') {
iobj = _PyNumber_Index(v);
if (iobj == NULL) {
if (PyErr_ExceptionMatches(PyExc_TypeError))
goto wrongtype;
return -1;
}
}
else {
iobj = PyNumber_Long(v);
if (iobj == NULL ) {
if (PyErr_ExceptionMatches(PyExc_TypeError))
goto wrongtype;
return -1;
}
}
if (iobj == NULL ) {
if (PyErr_ExceptionMatches(PyExc_TypeError))
goto wrongtype;
return -1;
}
assert(PyLong_Check(iobj));
}
Expand Down Expand Up @@ -14736,24 +14731,17 @@ formatchar(PyObject *v)
goto onError;
}
else {
PyObject *iobj;
long x;
/* make sure number is a type of integer */
if (!PyLong_Check(v)) {
iobj = PyNumber_Index(v);
if (iobj == NULL) {
int overflow;
long x = PyLong_AsLongAndOverflow(v, &overflow);
if (x == -1 && PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_TypeError)) {
goto onError;
}
x = PyLong_AsLong(iobj);
Py_DECREF(iobj);
}
else {
x = PyLong_AsLong(v);
return (Py_UCS4) -1;
}
if (x == -1 && PyErr_Occurred())
goto onError;

if (x < 0 || x > MAX_UNICODE) {
/* this includes an overflow in converting to C long */
PyErr_SetString(PyExc_OverflowError,
"%c arg not in range(0x110000)");
return (Py_UCS4) -1;
Expand Down