Commit Graph

1127 Commits

Author SHA1 Message Date
Tim Peters 4c483c4d8e Make the error msgs in our pow() implementations consistent. 2001-09-05 06:24:58 +00:00
Tim Peters 57f282a2a0 Try to recover from that glibc's ldexp apparently doesn't set errno on
overflow.  Needs testing on Linux (test_long.py and test_long_future.py
especially).
2001-09-05 05:38:10 +00:00
Tim Peters 7eea37e831 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
__builtin__.dir().  Moved the guts from bltinmodule.c to object.c.
2001-09-04 22:08:56 +00:00
Tim Peters e2a600099d Change long/long true division to return as many good bits as it can;
e.g., (1L << 40000)/(1L << 40001) returns 0.5, not Inf or NaN or whatever.
2001-09-04 06:17:36 +00:00
Tim Peters 9c1d7fd5f2 Move int_true_divide next to the other division routines. 2001-09-04 05:52:47 +00:00
Tim Peters 20dab9f168 Move long_true_divide next to the other division routines (for clarity!). 2001-09-04 05:31:47 +00:00
Tim Peters 9fffa3eea3 Raise OverflowError when appropriate on long->float conversion. Most of
the fiddling is simply due to that no caller of PyLong_AsDouble ever
checked for failure (so that's fixing old bugs).  PyLong_AsDouble is much
faster for big inputs now too, but that's more of a happy consequence
than a design goal.
2001-09-04 05:14:19 +00:00
Guido van Rossum 1832de4bc0 PEP 238 documented -Qwarn as warning only for classic int or long
division, and this makes sense.  Add -Qwarnall to warn for all
classic divisions, as required by the fixdiv.py tool.
2001-09-04 03:51:09 +00:00
Tim Peters a1c1b0f468 Introduce new private API function _PyLong_AsScaledDouble. Not used yet,
but will be the foundation for Good Things:
+ Speed PyLong_AsDouble.
+ Give PyLong_AsDouble the ability to detect overflow.
+ Make true division of long/long nearly as accurate as possible (no
  spurious infinities or NaNs).
+ Return non-insane results from math.log and math.log10 when passing a
  long that can't be approximated by a double better than HUGE_VAL.
2001-09-04 02:50:49 +00:00
Tim Peters 32f453eaa4 New restriction on pow(x, y, z): If z is not None, x and y must be of
integer types, and y must be >= 0.  See discussion at
http://sf.net/tracker/index.php?func=detail&aid=457066&group_id=5470&atid=105470
2001-09-03 08:35:41 +00:00
Tim Peters b95ec09a44 Repair typo in comment. 2001-09-02 18:35:54 +00:00
Tim Peters 25786c0851 Make dictionary() a real constructor. Accepts at most one argument, "a
mapping object", in the same sense dict.update(x) requires of x (that x
has a keys() method and a getitem).
Questionable:  The other type constructors accept a keyword argument, so I
did that here too (e.g., dictionary(mapping={1:2}) works).  But type_call
doesn't pass the keyword args to the tp_new slot (it passes NULL), it only
passes them to the tp_init slot, so getting at them required adding a
tp_init slot to dicts.  Looks like that makes the normal case (i.e., no
args at all) a little slower (the time it takes to call dict.tp_init and
have it figure out there's nothing to do).
2001-09-02 08:22:48 +00:00
Tim Peters 1b8ca0d87a Rewrite the tuple() docstring to parallel the list() docstring. 2001-09-02 06:42:25 +00:00
Tim Peters 9577761337 Repair apparent cut'n'pasteo in tuple() docstring. 2001-09-02 06:29:48 +00:00
Guido van Rossum 393661d15f Add warning mode for classic division, almost exactly as specified in
PEP 238.  Changes:

- add a new flag variable Py_DivisionWarningFlag, declared in
  pydebug.h, defined in object.c, set in main.c, and used in
  {int,long,float,complex}object.c.  When this flag is set, the
  classic division operator issues a DeprecationWarning message.

- add a new API PyRun_SimpleStringFlags() to match
  PyRun_SimpleString().  The main() function calls this so that
  commands run with -c can also benefit from -Dnew.

- While I was at it, I changed the usage message in main() somewhat:
  alphabetized the options, split it in *four* parts to fit in under
  512 bytes (not that I still believe this is necessary -- doc strings
  elsewhere are much longer), and perhaps most visibly, don't display
  the full list of options on each command line error.  Instead, the
  full list is only displayed when -h is used, and otherwise a brief
  reminder of -h is displayed.  When -h is used, write to stdout so
  that you can do `python -h | more'.

Notes:

- I don't want to use the -W option to control whether the classic
  division warning is issued or not, because the machinery to decide
  whether to display the warning or not is very expensive (it involves
  calling into the warnings.py module).  You can use -Werror to turn
  the warnings into exceptions though.

- The -Dnew option doesn't select future division for all of the
  program -- only for the __main__ module.  I don't know if I'll ever
  change this -- it would require changes to the .pyc file magic
  number to do it right, and a more global notion of compiler flags.

- You can usefully combine -Dwarn and -Dnew: this gives the __main__
  module new division, and warns about classic division everywhere
  else.
2001-08-31 17:40:15 +00:00
Guido van Rossum 29d55a38ce Fix a memory leak in str_subtype_new(). (All the other
xxx_subtype_new() functions are OK, but I goofed up in this one. :-( )
2001-08-31 16:11:15 +00:00
Guido van Rossum 41eb14dffa Give 'super' a decent repr(), and readonly attributes to access the
type and obj properties.  The "bogus super object" message is gone --
this will now just raise an AttributeError.
2001-08-30 23:13:11 +00:00
Guido van Rossum 21922aa939 PyObject_Repr(): add missing ">" back at end of format string: "<%s
object at %p>".
2001-08-30 20:26:05 +00:00
Tim Peters 017cb2c7d8 Squash new compiler wng. 2001-08-30 20:07:55 +00:00
Guido van Rossum 6fb3fdec7c Pytype_GenericAlloc(): round up size so we zap all four bytes of the
__dict__ slot for string subtypes.

subtype_dealloc(): properly use _PyObject_GetDictPtr() to get the
(potentially negative) dict offset.  Don't copy things into local
variables that are used only once.

type_new(): properly calculate a negative dict offset when tp_itemsize
is nonzero.  The __dict__ attribute, if present, is now a calculated
attribute rather than a structure member.
2001-08-30 20:00:07 +00:00
Guido van Rossum 4b8c0f6d7d More stuff discovered while writing the simplest of testcases:
tupledealloc(): only feed the free list when the type is really a
tuple, not a subtype.  Otherwise, use PyObject_GC_Del().

_PyTuple_Resize(): disallow using this for tuple subtypes.
2001-08-30 18:31:30 +00:00
Guido van Rossum 13228a6f09 Ah, the joy of writing test cases...
long_subtype_new(): fix a typo (type->ob_size instead of
tmp->ob_size).
2001-08-30 15:54:44 +00:00
Sjoerd Mullender 38b88c233a Removed some unreachable break statements to silence SGI compiler. 2001-08-30 13:58:58 +00:00
Tim Peters 52e0717215 Give the internal immutable list type .extend and .pop methods (they
"should have" been added here when they were added to lists).
2001-08-30 06:15:32 +00:00
Guido van Rossum c41418751f Safety measures now that str and tuple are subclassable:
If tp_itemsize of the basetype is nonzero, only allow empty __slots__
(declaring that no __dict__ should be added), and don't add a weakref
offset.
2001-08-30 04:43:35 +00:00
Guido van Rossum 31bcff8815 Make 'super' subclassable. (Not sure how useful this is yet. :-) 2001-08-30 04:37:15 +00:00
Guido van Rossum e023fe0eef Make unicode subclassable. 2001-08-30 03:12:59 +00:00
Guido van Rossum ae960afb5e Make str and tuple types subclassable. 2001-08-30 03:11:59 +00:00
Guido van Rossum 147b13c069 Make getset subclassable. 2001-08-30 03:10:36 +00:00
Guido van Rossum d93dce1699 Fix typo: double semicolons. 2001-08-30 03:09:31 +00:00
Tim Peters deb77e8394 Squash new compiler wng in debug build. 2001-08-30 00:32:51 +00:00
Neil Schemenauer c806c8858d Use new GC API. Remove usage of BASICSIZE macros. 2001-08-29 23:54:54 +00:00
Neil Schemenauer e83c00efd0 Use new GC API. 2001-08-29 23:54:21 +00:00
Neil Schemenauer fd34369ecb Remove GC related code. It lives in gcmodule now. 2001-08-29 23:54:03 +00:00
Neil Schemenauer 4f4817fee8 Make frames a PyVarObject. Use new GC API. 2001-08-29 23:52:17 +00:00
Guido van Rossum bef1417f9f Make int, long and float subclassable.
This uses a slightly wimpy and wasteful approach, but it works. :-)
2001-08-29 15:47:46 +00:00
Guido van Rossum e705ef1bce Fix super() so that it is usable for static methods (like __new__) as well.
In particular, the second argument can now be a subclass of the first
as well (normally it must be an instance though).
2001-08-29 15:47:06 +00:00
Guido van Rossum 5592e4d7d5 Fix a typo in SLOT0 macro for the declaration of cache_str.
Dunno why I didn't catch this before.
2001-08-28 18:28:21 +00:00
Guido van Rossum 2730b13202 Finish the previous checkin: also avoid getattr when calling the method
directly.
2001-08-28 18:22:14 +00:00
Guido van Rossum 607187325f Change in policy: when a slot_tp_xxx function looks for the __xxx__ method,
don't use getattr, but only look in the dict of the type and base types.
This prevents picking up all sorts of weird stuff, including things defined
by the metaclass when the object is a class (type).

For this purpose, a helper function lookup_method() was added.  One or two
other places also use this.
2001-08-28 17:47:51 +00:00
Barry Warsaw 7c47beb860 Two improvements suggested by Greg Stein:
PyString_FromFormatV(): In the final resize at the end, we can use
    PyString_AS_STRING() since we know the object is a string and can
    avoid the typechecking.

PyString_FromFormat(): GS sez: "For safety/propriety, you should call
    va_end() on the vargs variable."
2001-08-27 03:11:09 +00:00
Tim Peters 6af5bbb565 PyString_FromFormatV: Massage platform %p output to match what gcc does,
at least in the first two characters.  %p is ill-defined, and people will
forever commit bad tests otherwise ("bad" in the sense that they fall
over (at least on Windows) for lack of a leading '0x'; 5 of the 7 tests
in test_repr.py failed on Windows for that reason this time around).
2001-08-25 03:02:28 +00:00
Guido van Rossum 239abf7e23 getset_init(): the function name in the PyArg_ParseTuple() format
should just be "getset", not "getset.__init__".
2001-08-24 18:49:10 +00:00
Guido van Rossum a15dece519 Improve the error message issued when an unbound method is called with
an inappropriate first argument.  Now that there are more ways for
this to fail, make sure to report the name of the class of the
expected instance and of the actual instance.
2001-08-24 18:48:27 +00:00
Barry Warsaw 7ce3694a52 repr's converted to using PyString_FromFormat() instead of sprintf'ing
into a hardcoded char* buffer.

Closes patch #454743.
2001-08-24 18:34:26 +00:00
Barry Warsaw dadace004b PyString_FromFormat() and PyString_FromFormatV(): Largely ripped from
PyErr_Format() these new C API methods can be used instead of
    sprintf()'s into hardcoded char* buffers.  This allows us to fix
    many situation where long package, module, or class names get
    truncated in reprs.

    PyString_FromFormat() is the varargs variety.
    PyString_FromFormatV() is the va_list variety

    Original PyErr_Format() code was modified to allow %p and %ld
    expansions.

    Many reprs were converted to this, checkins coming soo.  Not
    changed: complex_repr(), float_repr(), float_print(), float_str(),
    int_repr().  There may be other candidates not yet converted.

    Closes patch #454743.
2001-08-24 18:32:06 +00:00
Guido van Rossum 705f0f5a91 Add 'super', another new object type with magical properties.
super(type) -> unbound super object
super(type, obj) -> bound super object; requires isinstance(obj, type)

Typical use to call a cooperative superclass method:

class C(B):
    def meth(self, arg):
        super(C, self).meth(arg);
2001-08-24 16:47:00 +00:00
Guido van Rossum 271410ad18 Change the getset type to take an optional third function argument:
the delete function.  (Question: should the attribute name also be
recorded in the getset object?  That makes the protocol more work, but
may give us better error messages.)
2001-08-24 15:23:20 +00:00
Guido van Rossum 845fc48bf7 getset_descr_set(): guard against deletion (indicated by a set call
with a NULL value), in a somewhat lame way: call the set() function
with one argument.  Should I add a 3rd function, 'del', instead?
2001-08-24 10:17:36 +00:00
Guido van Rossum 2c25239215 slot_tp_descr_get(): guard against NULL obj or type (bug reported by
Thomas Hellor on python-dev).

slot_tp_descr_set(): if value is NULL, call __del__ instead of
__set__.
2001-08-24 10:13:31 +00:00