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* Fixed ref count bug. Patch #411191. Found by Walter Dörwald.Marc-André Lemburg2001-03-251-1/+3
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* Add support for weak references to the function and method types.Fred Drake2001-03-232-3/+13
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* A small change to the C API for weakly-referencable types: Such typesFred Drake2001-03-221-0/+1
| | | | | | | | must now initialize the extra field used by the weak-ref machinery to NULL themselves, to avoid having to require PyObject_INIT() to check if the type supports weak references and do it there. This causes less work to be done for all objects (the type object does not need to be consulted to check for the Py_TPFLAGS_HAVE_WEAKREFS bit).
* Make PyDict_Next safe to use for loops that merely modify the valuesTim Peters2001-03-211-8/+32
| | | | | | associated with existing dict keys. This is a variant of part of Michael Hudson's patch #409864 "lazy fix for Pings bizarre scoping crash".
* Move the code implementing isinstance() and issubclass() to new CGuido van Rossum2001-03-211-0/+112
| | | | | APIs, PyObject_IsInstance() and PyObject_IsSubclass() -- both returning an int, or -1 for errors.
* Fix PyFrame_FastToLocals() and counterpart to deal with cells andJeremy Hylton2001-03-211-20/+68
| | | | | | | | | | | | | | frees. Note there doesn't seem to be any way to test LocalsToFast(), because the instructions that trigger it are illegal in nested scopes with free variables. Fix allocation strategy for cells that are also formal parameters. Instead of emitting LOAD_FAST / STORE_DEREF pairs for each parameter, have the argument handling code in eval_code2() do the right thing. A side-effect of this change is that cell variables that are also arguments are listed at the front of co_cellvars in the order they appear in the argument list.
* SF patch #408326 by Robin Thomas: slice objects comparable, notGuido van Rossum2001-03-201-3/+23
| | | | | | | | | | | | | | | | | | hashable This patch changes the behavior of slice objects in the following manner: - Slice objects are now comparable with other slice objects as though they were logically tuples of (start,stop,step). The tuple is not created in the comparison function, but the comparison behavior is logically equivalent. - Slice objects are not hashable. With the above change to being comparable, slice objects now cannot be used as keys in dictionaries. [I've edited the patch for style. Note that this fixes the problem that dict[i:j] seemed to work but was meaningless. --GvR]
* SF bug [ #409448 ] Complex division is braindeadTim Peters2001-03-181-8/+58
| | | | | | http://sourceforge.net/tracker/?func=detail&aid=409448&group_id=5470&atid=105470 Now less braindead. Also added test_complex.py, which doesn't test much, but fails without this patch.
* Variety of small INC/DECREF patches that fix reported memory leaksJeremy Hylton2001-03-132-3/+5
| | | | | | | | | | | | | | | | | | | | | with free variables. Thanks to Martin v. Loewis for finding two of the problems. This fixes SF buf 405583. There is also a C API change: PyFrame_New() is reverting to its pre-2.1 signature. The change introduced by nested scopes was a mistake. XXX Is this okay between beta releases? cell_clear(), the GC helper, must decref its reference to break cycles. frame_dealloc() must dealloc all cell vars and free vars in addition to locals. eval_code2() setup code must INCREF cells it copies out of the closure. The STORE_DEREF opcode implementation must DECREF the object it passes to PyCell_Set().
* Identifiers matching _[A-Z_]\w* are reserved for C implementations.Tim Peters2001-03-111-6/+6
| | | | | | May or may not be related to bug 407680 (obmalloc.c - looks like it's corrupted). This repairs the illegal vrbl names, but leaves a pile of illegal macro names (_THIS_xxx, _SYSTEM_xxx, _SET_HOOKS, _FETCH_HOOKS).
* When 1.6 boosted the # of digits produced by repr(float), repr(complex)Tim Peters2001-03-112-9/+32
| | | | apparently forgot to play along. Make complex act like float.
* Avoid giving prototypes on Solaris.Martin v. Löwis2001-03-061-1/+1
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* Use Py_CHARMASK for ctype macros. Fixes bug #232787.Martin v. Löwis2001-03-061-1/+1
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* Two improvements to large file support:Guido van Rossum2001-03-011-30/+18
| | | | | | | | | | | | | | - In _portable_ftell(), try fgetpos() before ftello() and ftell64(). I ran into a situation on a 64-bit capable Linux where the C library's ftello() and ftell64() returned negative numbers despite fpos_t and off_t both being 64-bit types; fgetpos() did the right thing. - Define a new typedef, Py_off_t, which is either fpos_t or off_t, depending on which one is 64 bits. This removes the need for a lot of #ifdefs later on. (XXX Should this be moved to pyport.h? That file currently seems oblivious to large fille support, so for now I'll leave it here where it's needed.)
* Visit the closure during traversal and XDECREF it on during deallocation.Jeremy Hylton2001-03-011-0/+6
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* Fix SF buf 404774 submitted by Gregory H. BallJeremy Hylton2001-02-281-1/+1
| | | | | A user program could delete a function's func_closure, which would cause it to crash when called.
* Add Vladimir Marangozov's object allocator. It is disabled by default. ThisNeil Schemenauer2001-02-272-0/+747
| | | | closes SF patch #401229.
* The return value from PyObject_ClearWeakRefs() is no longer meaningful,Fred Drake2001-02-262-5/+4
| | | | so make it void.
* instancemethod_setattro(): Raise TypeError if an attempt is made toBarry Warsaw2001-02-261-15/+2
| | | | | | set a function attribute on a method (either bound or unbound). This reverts to Python 2.0 behavior that no attributes of the method are writable, but provides a more informative error message.
* _Py_ReleaseInternedStrings(): Private API function to decref andBarry Warsaw2001-02-231-0/+10
| | | | | | release the interned string dictionary. This is useful for memory use debugging because it eliminates a huge source of noise from the reports. Only defined when INTERN_STRINGS is defined.
* _PyObject_Dump(): If argument is NULL, print "NULL" instead ofBarry Warsaw2001-02-221-3/+7
| | | | crashing.
* In try_3way_to_rich_compare(), swap the call to default_3way_compare()Guido van Rossum2001-02-221-2/+2
| | | | | | and the test for errors, so that an error in the default compare doesn't go undetected. This fixes SF Bug #132933 (submitted by effbot) -- list.sort doesn't detect comparision errors.
* reorganized PyUnicode_DecodeUnicodeEscape a bit (in order to make itFredrik Lundh2001-02-181-110/+69
| | | | less likely that bug #132817 ever appears again)
* Fix core dump whenever PyList_Reverse() was called.Guido van Rossum2001-02-121-11/+14
| | | | | | | | | | | This fixes SF bug #132008, reported by Warren J. Hack. The copyright for this patch (and this patch only) belongs to CNRI, as part of the (yet to be issued) 1.6.1 release. This is now checked into the HEAD branch. Tim will check in a test case to check for this specific bug, and an assertion in PyArgs_ParseTuple() to catch similar bugs in the future.
* Superseded by $(srcdir)/Makefile.pre.in.Neil Schemenauer2001-02-031-104/+0
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* SF patch 103543 from tg@freebsd.org:Jeremy Hylton2001-02-011-1/+1
| | | | PyFPE_END_PROTECT() was called on undefined var
* PEP 205, Weak References -- initial checkin.Fred Drake2001-02-012-0/+28
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* Rename dubiously named local variable 'cmpfunc' -- this is also aGuido van Rossum2001-01-291-5/+5
| | | | | | typedef, and at least one compiler choked on this. (SF patch #103457, by bquinlan)
* Remove f_closure slot of frameobject and use f_localsplus instead.Jeremy Hylton2001-01-291-23/+14
| | | | | | | | | | | | This change eliminates an extra malloc/free when a frame with free variables is created. Any cell vars or free vars are stored in f_localsplus after the locals and before the stack. eval_code2() fills in the appropriate values after handling initialization of locals. To track the size the frame has an f_size member that tracks the total size of f_localsplus. It used to be implicitly f_nlocals + f_stacksize.
* fix indentation glitchJeremy Hylton2001-01-291-1/+1
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* Fixed .capitalize() method of Unicode objects to work like theMarc-André Lemburg2001-01-291-4/+18
| | | | | | corresponding string method. Added tests for this too. Patch written by Marc-Andre Lemburg. Copyright assigned to Guido van Rossum.
* The one thing I love more then writing code is deleting code.Moshe Zadka2001-01-291-33/+2
| | | | | | | | | * Removed func_hash and func_compare, so they can be treated as immutable content-less objects (address hash and comparison) * Added tests to that affect to test_funcattrs (also testing func_code is writable) * Reverse meaning of tests in test_opcodes which checked identical code gets identical functions
* Re-factored PyInstance_New() into PyInstance_New() and PyInstance_NewRaw().Fred Drake2001-01-281-13/+34
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* PEP 227 implementationJeremy Hylton2001-01-252-3/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The majority of the changes are in the compiler. The mainloop changes primarily to implement the new opcodes and to pass a function's closure to eval_code2(). Frames and functions got new slots to hold the closure. Include/compile.h Add co_freevars and co_cellvars slots to code objects. Update PyCode_New() to take freevars and cellvars as arguments Include/funcobject.h Add func_closure slot to function objects. Add GetClosure()/SetClosure() functions (and corresponding macros) for getting at the closure. Include/frameobject.h PyFrame_New() now takes a closure. Include/opcode.h Add four new opcodes: MAKE_CLOSURE, LOAD_CLOSURE, LOAD_DEREF, STORE_DEREF. Remove comment about old requirement for opcodes to fit in 7 bits. compile.c Implement changes to code objects for co_freevars and co_cellvars. Modify symbol table to use st_cur_name (string object for the name of the current scope) and st_cur_children (list of nested blocks). Also define st_nested, which might more properly be called st_cur_nested. Add several DEF_XXX flags to track def-use information for free variables. New or modified functions of note: com_make_closure(struct compiling *, PyCodeObject *) Emit LOAD_CLOSURE opcodes as needed to pass cells for free variables into nested scope. com_addop_varname(struct compiling *, int, char *) Emits opcodes for LOAD_DEREF and STORE_DEREF. get_ref_type(struct compiling *, char *name) Return NAME_CLOSURE if ref type is FREE or CELL symtable_load_symbols(struct compiling *) Decides what variables are cell or free based on def-use info. Can now raise SyntaxError if nested scopes are mixed with exec or from blah import *. make_scope_info(PyObject *, PyObject *, int, int) Helper functions for symtable scope stack. symtable_update_free_vars(struct symtable *) After a code block has been analyzed, it must check each of its children for free variables that are not defined in the block. If a variable is free in a child and not defined in the parent, then it is defined by block the enclosing the current one or it is a global. This does the right logic. symtable_add_use() is now a macro for symtable_add_def() symtable_assign(struct symtable *, node *) Use goto instead of for (;;) Fixed bug in symtable where name of keyword argument in function call was treated as assignment in the scope of the call site. Ex: def f(): g(a=2) # a was considered a local of f ceval.c eval_code2() now take one more argument, a closure. Implement LOAD_CLOSURE, LOAD_DEREF, STORE_DEREF, MAKE_CLOSURE> Also: When name error occurs for global variable, report that the name was global in the error mesage. Objects/frameobject.c Initialize f_closure to be a tuple containing space for cellvars and freevars. f_closure is NULL if neither are present. Objects/funcobject.c Add support for func_closure. Python/import.c Change the magic number. Python/marshal.c Track changes to code objects.
* PEP 227 implementationJeremy Hylton2001-01-251-0/+115
| | | | | | A cell contains a reference to a single PyObject. It could be implemented as a mutable, one-element sequence, but the separate type has less overhead.
* Check the Py_TPFLAGS_HAVE_RICHCOMPARE flag before using theGuido van Rossum2001-01-241-7/+9
| | | | | tp_richcompare field! (Hopefully this will make Python 2.1 binary compatible with certain Zope extensions. :-)
* Show '\011', '\012', and '\015' as '\t', '\n', '\r' in strings.Ka-Ping Yee2001-01-242-12/+36
| | | | Switch from octal escapes to hex escapes for other nonprintable characters.
* Move uchhash functionality into unicodedata (after the recentFredrik Lundh2001-01-241-9/+11
| | | | | crop of changes, the files are small enough to do this). Also adds "name" and "lookup" functions to unicodedata.
* PyObject_Dump() -> _PyObject_Dump()Barry Warsaw2001-01-241-3/+3
| | | | PyGC_Dump() -> _PyGC_Dump()
* PyObject_Dump(): Use %p format to print the address of the pointer.Barry Warsaw2001-01-231-2/+4
| | | | PyGC_Dump(): Wrap this in a #ifdef WITH_CYCLE_GC.
* A few miscellaneous helpers.Barry Warsaw2001-01-231-2/+26
| | | | | | | | | | | | | | | | PyObject_Dump(): New function that is useful when debugging Python's C runtime. In something like gdb it can be a pain to get some useful information out of PyObject*'s. This function prints the str() of the object to stderr, along with the object's refcount and hex address. PyGC_Dump(): Similar to PyObject_Dump() but knows how to cast from the garbage collector prefix back to the PyObject* structure. [See Misc/gdbinit for some useful gdb hooks] none_dealloc(): Rather than SEGV if we accidentally decref None out of existance, we assign None's and NotImplemented's destructor slot to this function, which just calls abort().
* New special case in comparisons: None is smaller than any other objectGuido van Rossum2001-01-221-0/+6
| | | | (unless the object's type overrides this comparison).
* Once again, numeric-smelling objects compare smaller than non-numericGuido van Rossum2001-01-221-2/+17
| | | | ones.
* forgot to check in the new makeunicodedata.py scriptFredrik Lundh2001-01-211-1/+1
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* Remove a smelly export.Neil Schemenauer2001-01-211-1/+1
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* Better error message if ucnhash cannot be found (obscure attributeFredrik Lundh2001-01-201-3/+8
| | | | | | errors aren't that helpful), or doesn't contain what's expected from it. Also tweaked the test script so it compiles even if ucnhash is missing.
* Tim chastens:Barry Warsaw2001-01-201-1/+5
| | | | | | | | | | | | | | Barry, that comment belongs in the code, not in the checkin msg. The code *used* to do this correctly (as you well know, since you & I went thru considerable pain to fix this the first time). However, because the *reason* for the convolution wasn't recorded in the code as a comment, somebody threw it all away the first time it got reworked. c-code-isn't-often-self-explanatory-ly y'rs - tim default_3way_compare(): Stick the checkin message from 2.110 in a comment.
* default_3way_compare(): When comparing the pointers, they must be castBarry Warsaw2001-01-201-2/+2
| | | | | | | to integer types (i.e. Py_uintptr_t, our spelling of C9X's uintptr_t). ANSI specifies that pointer compares other than == and != to non-related structures are undefined. This quiets an Insure portability warning.
* Application and elaboration of patch #103305 to fix core dumps whenBarry Warsaw2001-01-191-30/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | del'ing func.func_dict. I took the opportunity to also clean up some other nits with the code, namely core dumps when del'ing func_defaults and KeyError instead of AttributeError when del'ing a non-existant function attribute. Specifically, func_memberlist: Move func_dict and __dict__ into here instead of special casing them in the setattro and getattro methods. I don't remember why I took them out of here before I first uploaded the PEP 232 patch. :/ func_getattro(): No need to special case __dict__/func_dict since their now in the func_memberlist and PyMember_Get() should Do The Right Thing (i.e. transforms NULL values into Py_None). func_setattro(): Document the intended behavior of del'ing or setting to None one of the special func_* attributes. I.e.: func_code - can only be set to a code object. It can't be del'd or set to None. func_defaults - can be del'd. Can only be set to None or a tuple. func_dict - can be del'd. Can only be set to None or a dictionary. Fix core dumps and incorrect exceptions as described above. Also, if we're del'ing an arbitrary function attribute but func_dict is NULL, don't create func_dict before discovering that we'll get an AttributeError anyway.
* refactored the unicodeobject/ucnhash interface, to hide theFredrik Lundh2001-01-191-103/+39
| | | | | | | implementation details inside the ucnhash module. also cleaned up the unicode copyright blurb a little; Secret Labs' internal revision history isn't that interesting...
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