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author | Benjamin Peterson <benjamin@python.org> | 2010-11-20 22:44:32 (GMT) |
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committer | Benjamin Peterson <benjamin@python.org> | 2010-11-20 22:44:32 (GMT) |
commit | 155614b104e7bd0a0175bfab2b249082989d398e (patch) | |
tree | 49e670883d75ae423afab4a6876aa4568af3ad3c | |
parent | 7e5343b882006ba4853f2b0b1064f6b1a458f790 (diff) | |
download | cpython-155614b104e7bd0a0175bfab2b249082989d398e.zip cpython-155614b104e7bd0a0175bfab2b249082989d398e.tar.gz cpython-155614b104e7bd0a0175bfab2b249082989d398e.tar.bz2 |
code style and simplification
-rw-r--r-- | Objects/rangeobject.c | 103 |
1 files changed, 31 insertions, 72 deletions
diff --git a/Objects/rangeobject.c b/Objects/rangeobject.c index d7bf018..66d743f 100644 --- a/Objects/rangeobject.c +++ b/Objects/rangeobject.c @@ -20,8 +20,7 @@ typedef struct { NULL on error. */ static PyObject * -validate_step(PyObject *step) -{ +validate_step(PyObject *step) { /* No step specified, use a step of 1. */ if (!step) return PyLong_FromLong(1); @@ -49,8 +48,7 @@ validate_step(PyObject *step) range(0, 5, -1) */ static PyObject * -range_new(PyTypeObject *type, PyObject *args, PyObject *kw) -{ +range_new(PyTypeObject *type, PyObject *args, PyObject *kw) { rangeobject *obj = NULL; PyObject *start = NULL, *stop = NULL, *step = NULL; @@ -118,8 +116,7 @@ PyDoc_STRVAR(range_doc, Returns an iterator that generates the numbers in the range on demand."); static void -range_dealloc(rangeobject *r) -{ +range_dealloc(rangeobject *r) { Py_DECREF(r->start); Py_DECREF(r->stop); Py_DECREF(r->step); @@ -131,8 +128,7 @@ range_dealloc(rangeobject *r) * PyLong_Check(). Return NULL when there is an error. */ static PyObject* -range_length_obj(rangeobject *r) -{ +range_length_obj(rangeobject *r) { /* ------------------------------------------------------------- Algorithm is equal to that of get_len_of_range(), but it operates on PyObjects (which are assumed to be PyLong objects). @@ -204,8 +200,7 @@ range_length_obj(rangeobject *r) } static Py_ssize_t -range_length(rangeobject *r) -{ +range_length(rangeobject *r) { PyObject *len = range_length_obj(r); Py_ssize_t result = -1; if (len) { @@ -218,8 +213,7 @@ range_length(rangeobject *r) /* range(...)[x] is necessary for: seq[:] = range(...) */ static PyObject * -range_item(rangeobject *r, Py_ssize_t i) -{ +range_item(rangeobject *r, Py_ssize_t i) { Py_ssize_t len = range_length(r); PyObject *rem, *incr, *result; @@ -246,8 +240,7 @@ range_item(rangeobject *r, Py_ssize_t i) } static PyObject * -range_repr(rangeobject *r) -{ +range_repr(rangeobject *r) { Py_ssize_t istep; /* Check for special case values for printing. We don't always @@ -267,16 +260,14 @@ range_repr(rangeobject *r) /* Pickling support */ static PyObject * -range_reduce(rangeobject *r, PyObject *args) -{ +range_reduce(rangeobject *r, PyObject *args) { return Py_BuildValue("(O(OOO))", Py_TYPE(r), r->start, r->stop, r->step); } /* Assumes (PyLong_CheckExact(ob) || PyBool_Check(ob)) */ static int -range_contains_long(rangeobject *r, PyObject *ob) -{ +range_contains_long(rangeobject *r, PyObject *ob) { int cmp1, cmp2, cmp3; PyObject *tmp1 = NULL; PyObject *tmp2 = NULL; @@ -334,8 +325,7 @@ range_contains(rangeobject *r, PyObject *ob) { } static PyObject * -range_count(rangeobject *r, PyObject *ob) -{ +range_count(rangeobject *r, PyObject *ob) { if (PyLong_CheckExact(ob) || PyBool_Check(ob)) { int result = range_contains_long(r, ob); if (result == -1) @@ -354,12 +344,8 @@ range_count(rangeobject *r, PyObject *ob) } static PyObject * -range_index(rangeobject *r, PyObject *ob) -{ - PyObject *idx, *tmp; +range_index(rangeobject *r, PyObject *ob) { int contains; - PyObject *format_tuple, *err_string; - static PyObject *err_format = NULL; if (!PyLong_CheckExact(ob) && !PyBool_Check(ob)) { Py_ssize_t index; @@ -373,35 +359,18 @@ range_index(rangeobject *r, PyObject *ob) if (contains == -1) return NULL; - if (!contains) - goto value_error; - - tmp = PyNumber_Subtract(ob, r->start); - if (tmp == NULL) - return NULL; - - /* idx = (ob - r.start) // r.step */ - idx = PyNumber_FloorDivide(tmp, r->step); - Py_DECREF(tmp); - return idx; - -value_error: - - /* object is not in the range */ - if (err_format == NULL) { - err_format = PyUnicode_FromString("%r is not in range"); - if (err_format == NULL) + if (contains) { + PyObject *idx, *tmp = PyNumber_Subtract(ob, r->start); + if (tmp == NULL) return NULL; + /* idx = (ob - r.start) // r.step */ + idx = PyNumber_FloorDivide(tmp, r->step); + Py_DECREF(tmp); + return idx; } - format_tuple = PyTuple_Pack(1, ob); - if (format_tuple == NULL) - return NULL; - err_string = PyUnicode_Format(err_format, format_tuple); - Py_DECREF(format_tuple); - if (err_string == NULL) - return NULL; - PyErr_SetObject(PyExc_ValueError, err_string); - Py_DECREF(err_string); + + /* object is not in the range */ + PyErr_Format(PyExc_ValueError, "%R is not in range", ob); return NULL; } @@ -494,8 +463,7 @@ typedef struct { } rangeiterobject; static PyObject * -rangeiter_next(rangeiterobject *r) -{ +rangeiter_next(rangeiterobject *r) { if (r->index < r->len) /* cast to unsigned to avoid possible signed overflow in intermediate calculations. */ @@ -505,8 +473,7 @@ rangeiter_next(rangeiterobject *r) } static PyObject * -rangeiter_len(rangeiterobject *r) -{ +rangeiter_len(rangeiterobject *r) { return PyLong_FromLong(r->len - r->index); } @@ -519,8 +486,7 @@ typedef struct { } longrangeiterobject; static PyObject * -longrangeiter_len(longrangeiterobject *r, PyObject *no_args) -{ +longrangeiter_len(longrangeiterobject *r, PyObject *no_args) { return PyNumber_Subtract(r->len, r->index); } @@ -581,8 +547,7 @@ PyTypeObject PyRangeIter_Type = { * required. The result always fits in an unsigned long. */ static unsigned long -get_len_of_range(long lo, long hi, long step) -{ +get_len_of_range(long lo, long hi, long step) { /* ------------------------------------------------------------- If step > 0 and lo >= hi, or step < 0 and lo <= hi, the range is empty. Else for step > 0, if n values are in the range, the last one is @@ -609,8 +574,7 @@ get_len_of_range(long lo, long hi, long step) is not representable as a C long, OverflowError is raised. */ static PyObject * -int_range_iter(long start, long stop, long step) -{ +int_range_iter(long start, long stop, long step) { rangeiterobject *it = PyObject_New(rangeiterobject, &PyRangeIter_Type); unsigned long ulen; if (it == NULL) @@ -630,8 +594,7 @@ int_range_iter(long start, long stop, long step) } static PyObject * -rangeiter_new(PyTypeObject *type, PyObject *args, PyObject *kw) -{ +rangeiter_new(PyTypeObject *type, PyObject *args, PyObject *kw) { long start, stop, step; if (!_PyArg_NoKeywords("rangeiter()", kw)) @@ -651,8 +614,7 @@ static PyMethodDef longrangeiter_methods[] = { }; static void -longrangeiter_dealloc(longrangeiterobject *r) -{ +longrangeiter_dealloc(longrangeiterobject *r) { Py_XDECREF(r->index); Py_XDECREF(r->start); Py_XDECREF(r->step); @@ -661,8 +623,7 @@ longrangeiter_dealloc(longrangeiterobject *r) } static PyObject * -longrangeiter_next(longrangeiterobject *r) -{ +longrangeiter_next(longrangeiterobject *r) { PyObject *one, *product, *new_index, *result; if (PyObject_RichCompareBool(r->index, r->len, Py_LT) != 1) return NULL; @@ -729,8 +690,7 @@ PyTypeObject PyLongRangeIter_Type = { }; static PyObject * -range_iter(PyObject *seq) -{ +range_iter(PyObject *seq) { rangeobject *r = (rangeobject *)seq; longrangeiterobject *it; long lstart, lstop, lstep; @@ -790,8 +750,7 @@ create_failure: } static PyObject * -range_reverse(PyObject *seq) -{ +range_reverse(PyObject *seq) { rangeobject *range = (rangeobject*) seq; longrangeiterobject *it; PyObject *one, *sum, *diff, *len = NULL, *product; |