diff options
| author | Daryl McDaniel <edk2-lists@mc2research.org> | 2015-11-07 19:25:02 +0000 |
|---|---|---|
| committer | darylm503 <darylm503@Edk2> | 2015-11-07 19:25:02 +0000 |
| commit | 7eb75bccb5dacb658c63db1a9a980950c3d54d42 (patch) | |
| tree | c65d20ea504fcb34afb6c10265f8dc60b7fb72e8 /AppPkg/Applications/Python/Python-2.7.10/Modules/operator.c | |
| parent | c8042e10763bca064df257547d04ae3dfcdfaf91 (diff) | |
| download | edk2-7eb75bccb5dacb658c63db1a9a980950c3d54d42.tar.gz edk2-7eb75bccb5dacb658c63db1a9a980950c3d54d42.tar.bz2 edk2-7eb75bccb5dacb658c63db1a9a980950c3d54d42.zip | |
AppPkg/Applications/Python/Python-2.7.10: Initial Checkin part 2/5.
The Modules directory from the cPython 2.7.10 distribution.
These files are unchanged and set the baseline for subsequent commits.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Daryl McDaniel <edk2-lists@mc2research.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18738 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'AppPkg/Applications/Python/Python-2.7.10/Modules/operator.c')
| -rw-r--r-- | AppPkg/Applications/Python/Python-2.7.10/Modules/operator.c | 930 |
1 files changed, 930 insertions, 0 deletions
diff --git a/AppPkg/Applications/Python/Python-2.7.10/Modules/operator.c b/AppPkg/Applications/Python/Python-2.7.10/Modules/operator.c new file mode 100644 index 0000000000..92d4a1fa04 --- /dev/null +++ b/AppPkg/Applications/Python/Python-2.7.10/Modules/operator.c @@ -0,0 +1,930 @@ +
+#include "Python.h"
+
+PyDoc_STRVAR(operator_doc,
+"Operator interface.\n\
+\n\
+This module exports a set of functions implemented in C corresponding\n\
+to the intrinsic operators of Python. For example, operator.add(x, y)\n\
+is equivalent to the expression x+y. The function names are those\n\
+used for special methods; variants without leading and trailing\n\
+'__' are also provided for convenience.");
+
+#define spam1(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a1) { \
+ return AOP(a1); }
+
+#define spam2(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2; \
+ if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
+ return AOP(a1,a2); }
+
+#define spamoi(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1; int a2; \
+ if(! PyArg_ParseTuple(a,"Oi:" #OP,&a1,&a2)) return NULL; \
+ return AOP(a1,a2); }
+
+#define spam2n(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2; \
+ if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
+ if(-1 == AOP(a1,a2)) return NULL; \
+ Py_INCREF(Py_None); \
+ return Py_None; }
+
+#define spam3n(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2, *a3; \
+ if(! PyArg_UnpackTuple(a,#OP,3,3,&a1,&a2,&a3)) return NULL; \
+ if(-1 == AOP(a1,a2,a3)) return NULL; \
+ Py_INCREF(Py_None); \
+ return Py_None; }
+
+#define spami(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a1) { \
+ long r; \
+ if(-1 == (r=AOP(a1))) return NULL; \
+ return PyBool_FromLong(r); }
+
+#define spami2(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2; long r; \
+ if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
+ if(-1 == (r=AOP(a1,a2))) return NULL; \
+ return PyInt_FromLong(r); }
+
+#define spamn2(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2; Py_ssize_t r; \
+ if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
+ if(-1 == (r=AOP(a1,a2))) return NULL; \
+ return PyInt_FromSsize_t(r); }
+
+#define spami2b(OP,AOP) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2; long r; \
+ if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
+ if(-1 == (r=AOP(a1,a2))) return NULL; \
+ return PyBool_FromLong(r); }
+
+#define spamrc(OP,A) static PyObject *OP(PyObject *s, PyObject *a) { \
+ PyObject *a1, *a2; \
+ if(! PyArg_UnpackTuple(a,#OP,2,2,&a1,&a2)) return NULL; \
+ return PyObject_RichCompare(a1,a2,A); }
+
+/* Deprecated operators that need warnings. */
+static int
+op_isCallable(PyObject *x)
+{
+ if (PyErr_WarnPy3k("operator.isCallable() is not supported in 3.x. "
+ "Use hasattr(obj, '__call__').", 1) < 0)
+ return -1;
+ return PyCallable_Check(x);
+}
+
+static int
+op_sequenceIncludes(PyObject *seq, PyObject* ob)
+{
+ if (PyErr_WarnPy3k("operator.sequenceIncludes() is not supported "
+ "in 3.x. Use operator.contains().", 1) < 0)
+ return -1;
+ return PySequence_Contains(seq, ob);
+}
+
+spami(isCallable , op_isCallable)
+spami(isNumberType , PyNumber_Check)
+spami(truth , PyObject_IsTrue)
+spam2(op_add , PyNumber_Add)
+spam2(op_sub , PyNumber_Subtract)
+spam2(op_mul , PyNumber_Multiply)
+spam2(op_div , PyNumber_Divide)
+spam2(op_floordiv , PyNumber_FloorDivide)
+spam2(op_truediv , PyNumber_TrueDivide)
+spam2(op_mod , PyNumber_Remainder)
+spam1(op_neg , PyNumber_Negative)
+spam1(op_pos , PyNumber_Positive)
+spam1(op_abs , PyNumber_Absolute)
+spam1(op_inv , PyNumber_Invert)
+spam1(op_invert , PyNumber_Invert)
+spam2(op_lshift , PyNumber_Lshift)
+spam2(op_rshift , PyNumber_Rshift)
+spami(op_not_ , PyObject_Not)
+spam2(op_and_ , PyNumber_And)
+spam2(op_xor , PyNumber_Xor)
+spam2(op_or_ , PyNumber_Or)
+spam2(op_iadd , PyNumber_InPlaceAdd)
+spam2(op_isub , PyNumber_InPlaceSubtract)
+spam2(op_imul , PyNumber_InPlaceMultiply)
+spam2(op_idiv , PyNumber_InPlaceDivide)
+spam2(op_ifloordiv , PyNumber_InPlaceFloorDivide)
+spam2(op_itruediv , PyNumber_InPlaceTrueDivide)
+spam2(op_imod , PyNumber_InPlaceRemainder)
+spam2(op_ilshift , PyNumber_InPlaceLshift)
+spam2(op_irshift , PyNumber_InPlaceRshift)
+spam2(op_iand , PyNumber_InPlaceAnd)
+spam2(op_ixor , PyNumber_InPlaceXor)
+spam2(op_ior , PyNumber_InPlaceOr)
+spami(isSequenceType , PySequence_Check)
+spam2(op_concat , PySequence_Concat)
+spamoi(op_repeat , PySequence_Repeat)
+spam2(op_iconcat , PySequence_InPlaceConcat)
+spamoi(op_irepeat , PySequence_InPlaceRepeat)
+spami2b(op_contains , PySequence_Contains)
+spami2b(sequenceIncludes, op_sequenceIncludes)
+spamn2(indexOf , PySequence_Index)
+spamn2(countOf , PySequence_Count)
+spami(isMappingType , PyMapping_Check)
+spam2(op_getitem , PyObject_GetItem)
+spam2n(op_delitem , PyObject_DelItem)
+spam3n(op_setitem , PyObject_SetItem)
+spamrc(op_lt , Py_LT)
+spamrc(op_le , Py_LE)
+spamrc(op_eq , Py_EQ)
+spamrc(op_ne , Py_NE)
+spamrc(op_gt , Py_GT)
+spamrc(op_ge , Py_GE)
+
+static PyObject*
+op_pow(PyObject *s, PyObject *a)
+{
+ PyObject *a1, *a2;
+ if (PyArg_UnpackTuple(a,"pow", 2, 2, &a1, &a2))
+ return PyNumber_Power(a1, a2, Py_None);
+ return NULL;
+}
+
+static PyObject*
+op_ipow(PyObject *s, PyObject *a)
+{
+ PyObject *a1, *a2;
+ if (PyArg_UnpackTuple(a,"ipow", 2, 2, &a1, &a2))
+ return PyNumber_InPlacePower(a1, a2, Py_None);
+ return NULL;
+}
+
+static PyObject *
+op_index(PyObject *s, PyObject *a)
+{
+ return PyNumber_Index(a);
+}
+
+static PyObject*
+is_(PyObject *s, PyObject *a)
+{
+ PyObject *a1, *a2, *result = NULL;
+ if (PyArg_UnpackTuple(a,"is_", 2, 2, &a1, &a2)) {
+ result = (a1 == a2) ? Py_True : Py_False;
+ Py_INCREF(result);
+ }
+ return result;
+}
+
+static PyObject*
+is_not(PyObject *s, PyObject *a)
+{
+ PyObject *a1, *a2, *result = NULL;
+ if (PyArg_UnpackTuple(a,"is_not", 2, 2, &a1, &a2)) {
+ result = (a1 != a2) ? Py_True : Py_False;
+ Py_INCREF(result);
+ }
+ return result;
+}
+
+static PyObject*
+op_getslice(PyObject *s, PyObject *a)
+{
+ PyObject *a1;
+ Py_ssize_t a2, a3;
+
+ if (!PyArg_ParseTuple(a, "Onn:getslice", &a1, &a2, &a3))
+ return NULL;
+ return PySequence_GetSlice(a1, a2, a3);
+}
+
+static PyObject*
+op_setslice(PyObject *s, PyObject *a)
+{
+ PyObject *a1, *a4;
+ Py_ssize_t a2, a3;
+
+ if (!PyArg_ParseTuple(a, "OnnO:setslice", &a1, &a2, &a3, &a4))
+ return NULL;
+
+ if (-1 == PySequence_SetSlice(a1, a2, a3, a4))
+ return NULL;
+
+ Py_RETURN_NONE;
+}
+
+static PyObject*
+op_delslice(PyObject *s, PyObject *a)
+{
+ PyObject *a1;
+ Py_ssize_t a2, a3;
+
+ if (!PyArg_ParseTuple(a, "Onn:delslice", &a1, &a2, &a3))
+ return NULL;
+
+ if (-1 == PySequence_DelSlice(a1, a2, a3))
+ return NULL;
+
+ Py_RETURN_NONE;
+}
+
+#undef spam1
+#undef spam2
+#undef spam1o
+#undef spam1o
+#define spam1(OP,DOC) {#OP, OP, METH_VARARGS, PyDoc_STR(DOC)},
+#define spam2(OP,ALTOP,DOC) {#OP, op_##OP, METH_VARARGS, PyDoc_STR(DOC)}, \
+ {#ALTOP, op_##OP, METH_VARARGS, PyDoc_STR(DOC)},
+#define spam1o(OP,DOC) {#OP, OP, METH_O, PyDoc_STR(DOC)},
+#define spam2o(OP,ALTOP,DOC) {#OP, op_##OP, METH_O, PyDoc_STR(DOC)}, \
+ {#ALTOP, op_##OP, METH_O, PyDoc_STR(DOC)},
+
+
+
+/* compare_digest **********************************************************/
+
+/*
+ * timing safe compare
+ *
+ * Returns 1 of the strings are equal.
+ * In case of len(a) != len(b) the function tries to keep the timing
+ * dependent on the length of b. CPU cache locally may still alter timing
+ * a bit.
+ */
+static int
+_tscmp(const unsigned char *a, const unsigned char *b,
+ Py_ssize_t len_a, Py_ssize_t len_b)
+{
+ /* The volatile type declarations make sure that the compiler has no
+ * chance to optimize and fold the code in any way that may change
+ * the timing.
+ */
+ volatile Py_ssize_t length;
+ volatile const unsigned char *left;
+ volatile const unsigned char *right;
+ Py_ssize_t i;
+ unsigned char result;
+
+ /* loop count depends on length of b */
+ length = len_b;
+ left = NULL;
+ right = b;
+
+ /* don't use else here to keep the amount of CPU instructions constant,
+ * volatile forces re-evaluation
+ * */
+ if (len_a == length) {
+ left = *((volatile const unsigned char**)&a);
+ result = 0;
+ }
+ if (len_a != length) {
+ left = b;
+ result = 1;
+ }
+
+ for (i=0; i < length; i++) {
+ result |= *left++ ^ *right++;
+ }
+
+ return (result == 0);
+}
+
+PyDoc_STRVAR(compare_digest__doc__,
+"compare_digest(a, b) -> bool\n"
+"\n"
+"Return 'a == b'. This function uses an approach designed to prevent\n"
+"timing analysis, making it appropriate for cryptography.\n"
+"a and b must both be of the same type: either str (ASCII only),\n"
+"or any type that supports the buffer protocol (e.g. bytes).\n"
+"\n"
+"Note: If a and b are of different lengths, or if an error occurs,\n"
+"a timing attack could theoretically reveal information about the\n"
+"types and lengths of a and b--but not their values.\n");
+
+static PyObject*
+compare_digest(PyObject *self, PyObject *args)
+{
+ PyObject *a, *b;
+ int rc;
+
+ if (!PyArg_ParseTuple(args, "OO:compare_digest", &a, &b)) {
+ return NULL;
+ }
+
+ /* Unicode string */
+ if (PyUnicode_Check(a) && PyUnicode_Check(b)) {
+ rc = _tscmp((const unsigned char *)PyUnicode_AS_DATA(a),
+ (const unsigned char *)PyUnicode_AS_DATA(b),
+ PyUnicode_GET_DATA_SIZE(a),
+ PyUnicode_GET_DATA_SIZE(b));
+ }
+ /* fallback to buffer interface for bytes, bytesarray and other */
+ else {
+ Py_buffer view_a;
+ Py_buffer view_b;
+
+ if (PyObject_CheckBuffer(a) == 0 && PyObject_CheckBuffer(b) == 0) {
+ PyErr_Format(PyExc_TypeError,
+ "unsupported operand types(s) or combination of types: "
+ "'%.100s' and '%.100s'",
+ Py_TYPE(a)->tp_name, Py_TYPE(b)->tp_name);
+ return NULL;
+ }
+
+ if (PyObject_GetBuffer(a, &view_a, PyBUF_SIMPLE) == -1) {
+ return NULL;
+ }
+ if (view_a.ndim > 1) {
+ PyErr_SetString(PyExc_BufferError,
+ "Buffer must be single dimension");
+ PyBuffer_Release(&view_a);
+ return NULL;
+ }
+
+ if (PyObject_GetBuffer(b, &view_b, PyBUF_SIMPLE) == -1) {
+ PyBuffer_Release(&view_a);
+ return NULL;
+ }
+ if (view_b.ndim > 1) {
+ PyErr_SetString(PyExc_BufferError,
+ "Buffer must be single dimension");
+ PyBuffer_Release(&view_a);
+ PyBuffer_Release(&view_b);
+ return NULL;
+ }
+
+ rc = _tscmp((const unsigned char*)view_a.buf,
+ (const unsigned char*)view_b.buf,
+ view_a.len,
+ view_b.len);
+
+ PyBuffer_Release(&view_a);
+ PyBuffer_Release(&view_b);
+ }
+
+ return PyBool_FromLong(rc);
+}
+
+static struct PyMethodDef operator_methods[] = {
+
+spam1o(isCallable,
+ "isCallable(a) -- Same as callable(a).")
+spam1o(isNumberType,
+ "isNumberType(a) -- Return True if a has a numeric type, False otherwise.")
+spam1o(isSequenceType,
+ "isSequenceType(a) -- Return True if a has a sequence type, False otherwise.")
+spam1o(truth,
+ "truth(a) -- Return True if a is true, False otherwise.")
+spam2(contains,__contains__,
+ "contains(a, b) -- Same as b in a (note reversed operands).")
+spam1(sequenceIncludes,
+ "sequenceIncludes(a, b) -- Same as b in a (note reversed operands; deprecated).")
+spam1(indexOf,
+ "indexOf(a, b) -- Return the first index of b in a.")
+spam1(countOf,
+ "countOf(a, b) -- Return the number of times b occurs in a.")
+spam1o(isMappingType,
+ "isMappingType(a) -- Return True if a has a mapping type, False otherwise.")
+
+spam1(is_, "is_(a, b) -- Same as a is b.")
+spam1(is_not, "is_not(a, b) -- Same as a is not b.")
+spam2o(index, __index__, "index(a) -- Same as a.__index__()")
+spam2(add,__add__, "add(a, b) -- Same as a + b.")
+spam2(sub,__sub__, "sub(a, b) -- Same as a - b.")
+spam2(mul,__mul__, "mul(a, b) -- Same as a * b.")
+spam2(div,__div__, "div(a, b) -- Same as a / b when __future__.division is not in effect.")
+spam2(floordiv,__floordiv__, "floordiv(a, b) -- Same as a // b.")
+spam2(truediv,__truediv__, "truediv(a, b) -- Same as a / b when __future__.division is in effect.")
+spam2(mod,__mod__, "mod(a, b) -- Same as a % b.")
+spam2o(neg,__neg__, "neg(a) -- Same as -a.")
+spam2o(pos,__pos__, "pos(a) -- Same as +a.")
+spam2o(abs,__abs__, "abs(a) -- Same as abs(a).")
+spam2o(inv,__inv__, "inv(a) -- Same as ~a.")
+spam2o(invert,__invert__, "invert(a) -- Same as ~a.")
+spam2(lshift,__lshift__, "lshift(a, b) -- Same as a << b.")
+spam2(rshift,__rshift__, "rshift(a, b) -- Same as a >> b.")
+spam2o(not_,__not__, "not_(a) -- Same as not a.")
+spam2(and_,__and__, "and_(a, b) -- Same as a & b.")
+spam2(xor,__xor__, "xor(a, b) -- Same as a ^ b.")
+spam2(or_,__or__, "or_(a, b) -- Same as a | b.")
+spam2(iadd,__iadd__, "a = iadd(a, b) -- Same as a += b.")
+spam2(isub,__isub__, "a = isub(a, b) -- Same as a -= b.")
+spam2(imul,__imul__, "a = imul(a, b) -- Same as a *= b.")
+spam2(idiv,__idiv__, "a = idiv(a, b) -- Same as a /= b when __future__.division is not in effect.")
+spam2(ifloordiv,__ifloordiv__, "a = ifloordiv(a, b) -- Same as a //= b.")
+spam2(itruediv,__itruediv__, "a = itruediv(a, b) -- Same as a /= b when __future__.division is in effect.")
+spam2(imod,__imod__, "a = imod(a, b) -- Same as a %= b.")
+spam2(ilshift,__ilshift__, "a = ilshift(a, b) -- Same as a <<= b.")
+spam2(irshift,__irshift__, "a = irshift(a, b) -- Same as a >>= b.")
+spam2(iand,__iand__, "a = iand(a, b) -- Same as a &= b.")
+spam2(ixor,__ixor__, "a = ixor(a, b) -- Same as a ^= b.")
+spam2(ior,__ior__, "a = ior(a, b) -- Same as a |= b.")
+spam2(concat,__concat__,
+ "concat(a, b) -- Same as a + b, for a and b sequences.")
+spam2(repeat,__repeat__,
+ "repeat(a, b) -- Return a * b, where a is a sequence, and b is an integer.")
+spam2(iconcat,__iconcat__,
+ "a = iconcat(a, b) -- Same as a += b, for a and b sequences.")
+spam2(irepeat,__irepeat__,
+ "a = irepeat(a, b) -- Same as a *= b, where a is a sequence, and b is an integer.")
+spam2(getitem,__getitem__,
+ "getitem(a, b) -- Same as a[b].")
+spam2(setitem,__setitem__,
+ "setitem(a, b, c) -- Same as a[b] = c.")
+spam2(delitem,__delitem__,
+ "delitem(a, b) -- Same as del a[b].")
+spam2(pow,__pow__, "pow(a, b) -- Same as a ** b.")
+spam2(ipow,__ipow__, "a = ipow(a, b) -- Same as a **= b.")
+spam2(getslice,__getslice__,
+ "getslice(a, b, c) -- Same as a[b:c].")
+spam2(setslice,__setslice__,
+"setslice(a, b, c, d) -- Same as a[b:c] = d.")
+spam2(delslice,__delslice__,
+"delslice(a, b, c) -- Same as del a[b:c].")
+spam2(lt,__lt__, "lt(a, b) -- Same as a<b.")
+spam2(le,__le__, "le(a, b) -- Same as a<=b.")
+spam2(eq,__eq__, "eq(a, b) -- Same as a==b.")
+spam2(ne,__ne__, "ne(a, b) -- Same as a!=b.")
+spam2(gt,__gt__, "gt(a, b) -- Same as a>b.")
+spam2(ge,__ge__, "ge(a, b) -- Same as a>=b.")
+
+ {"_compare_digest", (PyCFunction)compare_digest, METH_VARARGS,
+ compare_digest__doc__},
+ {NULL, NULL} /* sentinel */
+
+};
+
+/* itemgetter object **********************************************************/
+
+typedef struct {
+ PyObject_HEAD
+ Py_ssize_t nitems;
+ PyObject *item;
+} itemgetterobject;
+
+static PyTypeObject itemgetter_type;
+
+static PyObject *
+itemgetter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+ itemgetterobject *ig;
+ PyObject *item;
+ Py_ssize_t nitems;
+
+ if (!_PyArg_NoKeywords("itemgetter()", kwds))
+ return NULL;
+
+ nitems = PyTuple_GET_SIZE(args);
+ if (nitems <= 1) {
+ if (!PyArg_UnpackTuple(args, "itemgetter", 1, 1, &item))
+ return NULL;
+ } else
+ item = args;
+
+ /* create itemgetterobject structure */
+ ig = PyObject_GC_New(itemgetterobject, &itemgetter_type);
+ if (ig == NULL)
+ return NULL;
+
+ Py_INCREF(item);
+ ig->item = item;
+ ig->nitems = nitems;
+
+ PyObject_GC_Track(ig);
+ return (PyObject *)ig;
+}
+
+static void
+itemgetter_dealloc(itemgetterobject *ig)
+{
+ PyObject_GC_UnTrack(ig);
+ Py_XDECREF(ig->item);
+ PyObject_GC_Del(ig);
+}
+
+static int
+itemgetter_traverse(itemgetterobject *ig, visitproc visit, void *arg)
+{
+ Py_VISIT(ig->item);
+ return 0;
+}
+
+static PyObject *
+itemgetter_call(itemgetterobject *ig, PyObject *args, PyObject *kw)
+{
+ PyObject *obj, *result;
+ Py_ssize_t i, nitems=ig->nitems;
+
+ if (!PyArg_UnpackTuple(args, "itemgetter", 1, 1, &obj))
+ return NULL;
+ if (nitems == 1)
+ return PyObject_GetItem(obj, ig->item);
+
+ assert(PyTuple_Check(ig->item));
+ assert(PyTuple_GET_SIZE(ig->item) == nitems);
+
+ result = PyTuple_New(nitems);
+ if (result == NULL)
+ return NULL;
+
+ for (i=0 ; i < nitems ; i++) {
+ PyObject *item, *val;
+ item = PyTuple_GET_ITEM(ig->item, i);
+ val = PyObject_GetItem(obj, item);
+ if (val == NULL) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ PyTuple_SET_ITEM(result, i, val);
+ }
+ return result;
+}
+
+PyDoc_STRVAR(itemgetter_doc,
+"itemgetter(item, ...) --> itemgetter object\n\
+\n\
+Return a callable object that fetches the given item(s) from its operand.\n\
+After f = itemgetter(2), the call f(r) returns r[2].\n\
+After g = itemgetter(2, 5, 3), the call g(r) returns (r[2], r[5], r[3])");
+
+static PyTypeObject itemgetter_type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "operator.itemgetter", /* tp_name */
+ sizeof(itemgetterobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)itemgetter_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)itemgetter_call, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
+ itemgetter_doc, /* tp_doc */
+ (traverseproc)itemgetter_traverse, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ itemgetter_new, /* tp_new */
+ 0, /* tp_free */
+};
+
+
+/* attrgetter object **********************************************************/
+
+typedef struct {
+ PyObject_HEAD
+ Py_ssize_t nattrs;
+ PyObject *attr;
+} attrgetterobject;
+
+static PyTypeObject attrgetter_type;
+
+static PyObject *
+attrgetter_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+ attrgetterobject *ag;
+ PyObject *attr;
+ Py_ssize_t nattrs;
+
+ if (!_PyArg_NoKeywords("attrgetter()", kwds))
+ return NULL;
+
+ nattrs = PyTuple_GET_SIZE(args);
+ if (nattrs <= 1) {
+ if (!PyArg_UnpackTuple(args, "attrgetter", 1, 1, &attr))
+ return NULL;
+ } else
+ attr = args;
+
+ /* create attrgetterobject structure */
+ ag = PyObject_GC_New(attrgetterobject, &attrgetter_type);
+ if (ag == NULL)
+ return NULL;
+
+ Py_INCREF(attr);
+ ag->attr = attr;
+ ag->nattrs = nattrs;
+
+ PyObject_GC_Track(ag);
+ return (PyObject *)ag;
+}
+
+static void
+attrgetter_dealloc(attrgetterobject *ag)
+{
+ PyObject_GC_UnTrack(ag);
+ Py_XDECREF(ag->attr);
+ PyObject_GC_Del(ag);
+}
+
+static int
+attrgetter_traverse(attrgetterobject *ag, visitproc visit, void *arg)
+{
+ Py_VISIT(ag->attr);
+ return 0;
+}
+
+static PyObject *
+dotted_getattr(PyObject *obj, PyObject *attr)
+{
+ char *s, *p;
+
+#ifdef Py_USING_UNICODE
+ if (PyUnicode_Check(attr)) {
+ attr = _PyUnicode_AsDefaultEncodedString(attr, NULL);
+ if (attr == NULL)
+ return NULL;
+ }
+#endif
+
+ if (!PyString_Check(attr)) {
+ PyErr_SetString(PyExc_TypeError,
+ "attribute name must be a string");
+ return NULL;
+ }
+
+ s = PyString_AS_STRING(attr);
+ Py_INCREF(obj);
+ for (;;) {
+ PyObject *newobj, *str;
+ p = strchr(s, '.');
+ str = p ? PyString_FromStringAndSize(s, (p-s)) :
+ PyString_FromString(s);
+ if (str == NULL) {
+ Py_DECREF(obj);
+ return NULL;
+ }
+ newobj = PyObject_GetAttr(obj, str);
+ Py_DECREF(str);
+ Py_DECREF(obj);
+ if (newobj == NULL)
+ return NULL;
+ obj = newobj;
+ if (p == NULL) break;
+ s = p+1;
+ }
+
+ return obj;
+}
+
+static PyObject *
+attrgetter_call(attrgetterobject *ag, PyObject *args, PyObject *kw)
+{
+ PyObject *obj, *result;
+ Py_ssize_t i, nattrs=ag->nattrs;
+
+ if (!PyArg_UnpackTuple(args, "attrgetter", 1, 1, &obj))
+ return NULL;
+ if (ag->nattrs == 1)
+ return dotted_getattr(obj, ag->attr);
+
+ assert(PyTuple_Check(ag->attr));
+ assert(PyTuple_GET_SIZE(ag->attr) == nattrs);
+
+ result = PyTuple_New(nattrs);
+ if (result == NULL)
+ return NULL;
+
+ for (i=0 ; i < nattrs ; i++) {
+ PyObject *attr, *val;
+ attr = PyTuple_GET_ITEM(ag->attr, i);
+ val = dotted_getattr(obj, attr);
+ if (val == NULL) {
+ Py_DECREF(result);
+ return NULL;
+ }
+ PyTuple_SET_ITEM(result, i, val);
+ }
+ return result;
+}
+
+PyDoc_STRVAR(attrgetter_doc,
+"attrgetter(attr, ...) --> attrgetter object\n\
+\n\
+Return a callable object that fetches the given attribute(s) from its operand.\n\
+After f = attrgetter('name'), the call f(r) returns r.name.\n\
+After g = attrgetter('name', 'date'), the call g(r) returns (r.name, r.date).\n\
+After h = attrgetter('name.first', 'name.last'), the call h(r) returns\n\
+(r.name.first, r.name.last).");
+
+static PyTypeObject attrgetter_type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "operator.attrgetter", /* tp_name */
+ sizeof(attrgetterobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)attrgetter_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)attrgetter_call, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
+ attrgetter_doc, /* tp_doc */
+ (traverseproc)attrgetter_traverse, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ attrgetter_new, /* tp_new */
+ 0, /* tp_free */
+};
+
+
+/* methodcaller object **********************************************************/
+
+typedef struct {
+ PyObject_HEAD
+ PyObject *name;
+ PyObject *args;
+ PyObject *kwds;
+} methodcallerobject;
+
+static PyTypeObject methodcaller_type;
+
+static PyObject *
+methodcaller_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
+{
+ methodcallerobject *mc;
+ PyObject *name, *newargs;
+
+ if (PyTuple_GET_SIZE(args) < 1) {
+ PyErr_SetString(PyExc_TypeError, "methodcaller needs at least "
+ "one argument, the method name");
+ return NULL;
+ }
+
+ /* create methodcallerobject structure */
+ mc = PyObject_GC_New(methodcallerobject, &methodcaller_type);
+ if (mc == NULL)
+ return NULL;
+
+ newargs = PyTuple_GetSlice(args, 1, PyTuple_GET_SIZE(args));
+ if (newargs == NULL) {
+ Py_DECREF(mc);
+ return NULL;
+ }
+ mc->args = newargs;
+
+ name = PyTuple_GET_ITEM(args, 0);
+ Py_INCREF(name);
+ mc->name = name;
+
+ Py_XINCREF(kwds);
+ mc->kwds = kwds;
+
+ PyObject_GC_Track(mc);
+ return (PyObject *)mc;
+}
+
+static void
+methodcaller_dealloc(methodcallerobject *mc)
+{
+ PyObject_GC_UnTrack(mc);
+ Py_XDECREF(mc->name);
+ Py_XDECREF(mc->args);
+ Py_XDECREF(mc->kwds);
+ PyObject_GC_Del(mc);
+}
+
+static int
+methodcaller_traverse(methodcallerobject *mc, visitproc visit, void *arg)
+{
+ Py_VISIT(mc->args);
+ Py_VISIT(mc->kwds);
+ return 0;
+}
+
+static PyObject *
+methodcaller_call(methodcallerobject *mc, PyObject *args, PyObject *kw)
+{
+ PyObject *method, *obj, *result;
+
+ if (!PyArg_UnpackTuple(args, "methodcaller", 1, 1, &obj))
+ return NULL;
+ method = PyObject_GetAttr(obj, mc->name);
+ if (method == NULL)
+ return NULL;
+ result = PyObject_Call(method, mc->args, mc->kwds);
+ Py_DECREF(method);
+ return result;
+}
+
+PyDoc_STRVAR(methodcaller_doc,
+"methodcaller(name, ...) --> methodcaller object\n\
+\n\
+Return a callable object that calls the given method on its operand.\n\
+After f = methodcaller('name'), the call f(r) returns r.name().\n\
+After g = methodcaller('name', 'date', foo=1), the call g(r) returns\n\
+r.name('date', foo=1).");
+
+static PyTypeObject methodcaller_type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ "operator.methodcaller", /* tp_name */
+ sizeof(methodcallerobject), /* tp_basicsize */
+ 0, /* tp_itemsize */
+ /* methods */
+ (destructor)methodcaller_dealloc, /* tp_dealloc */
+ 0, /* tp_print */
+ 0, /* tp_getattr */
+ 0, /* tp_setattr */
+ 0, /* tp_compare */
+ 0, /* tp_repr */
+ 0, /* tp_as_number */
+ 0, /* tp_as_sequence */
+ 0, /* tp_as_mapping */
+ 0, /* tp_hash */
+ (ternaryfunc)methodcaller_call, /* tp_call */
+ 0, /* tp_str */
+ PyObject_GenericGetAttr, /* tp_getattro */
+ 0, /* tp_setattro */
+ 0, /* tp_as_buffer */
+ Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
+ methodcaller_doc, /* tp_doc */
+ (traverseproc)methodcaller_traverse, /* tp_traverse */
+ 0, /* tp_clear */
+ 0, /* tp_richcompare */
+ 0, /* tp_weaklistoffset */
+ 0, /* tp_iter */
+ 0, /* tp_iternext */
+ 0, /* tp_methods */
+ 0, /* tp_members */
+ 0, /* tp_getset */
+ 0, /* tp_base */
+ 0, /* tp_dict */
+ 0, /* tp_descr_get */
+ 0, /* tp_descr_set */
+ 0, /* tp_dictoffset */
+ 0, /* tp_init */
+ 0, /* tp_alloc */
+ methodcaller_new, /* tp_new */
+ 0, /* tp_free */
+};
+
+
+/* Initialization function for the module (*must* be called initoperator) */
+
+PyMODINIT_FUNC
+initoperator(void)
+{
+ PyObject *m;
+
+ /* Create the module and add the functions */
+ m = Py_InitModule4("operator", operator_methods, operator_doc,
+ (PyObject*)NULL, PYTHON_API_VERSION);
+ if (m == NULL)
+ return;
+
+ if (PyType_Ready(&itemgetter_type) < 0)
+ return;
+ Py_INCREF(&itemgetter_type);
+ PyModule_AddObject(m, "itemgetter", (PyObject *)&itemgetter_type);
+
+ if (PyType_Ready(&attrgetter_type) < 0)
+ return;
+ Py_INCREF(&attrgetter_type);
+ PyModule_AddObject(m, "attrgetter", (PyObject *)&attrgetter_type);
+
+ if (PyType_Ready(&methodcaller_type) < 0)
+ return;
+ Py_INCREF(&methodcaller_type);
+ PyModule_AddObject(m, "methodcaller", (PyObject *)&methodcaller_type);
+}
|