cpython-lru_cache-weakref: Objects/frameobject.c annotate

annotate Objects/frameobject.c @ 79691:05c8928362ee

Merge __next__ method link fixes with 3.3.

author	Ezio Melotti <ezio.melotti@gmail.com>
date	Fri, 12 Oct 2012 13:46:37 +0300
parents	d63a80abfbec
children	dabe2486e2ce

rev	line source
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	1 /* Frame object implementation */
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	2
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	3 #include "Python.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	4
35742 1c4d192f1568 Merge ast-branch to head Jeremy Hylton <jeremy@alum.mit.edu> parents: 32463 diff changeset	5 #include "code.h"
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	6 #include "frameobject.h"
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	7 #include "opcode.h"
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	8 #include "structmember.h"
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	9
26709 89317d93f639 Undefine MIN and MAX before defining Neal Norwitz <nnorwitz@gmail.com> parents: 26686 diff changeset	10 #undef MIN
89317d93f639 Undefine MIN and MAX before defining Neal Norwitz <nnorwitz@gmail.com> parents: 26686 diff changeset	11 #undef MAX
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	12 #define MIN(a, b) ((a) < (b) ? (a) : (b))
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	13 #define MAX(a, b) ((a) > (b) ? (a) : (b))
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	14
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	15 #define OFF(x) offsetof(PyFrameObject, x)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	16
20012 3faabf54b8b8 Add optional docstrings to member descriptors. For backwards Guido van Rossum <guido@python.org> parents: 19588 diff changeset	17 static PyMemberDef frame_memberlist[] = {
74356 d64ac9ab4cd0 Implement PEP 380 - 'yield from' (closes #11682) Nick Coghlan <ncoghlan@gmail.com> parents: 68257 diff changeset	18 {"f_back", T_OBJECT, OFF(f_back), READONLY},
d64ac9ab4cd0 Implement PEP 380 - 'yield from' (closes #11682) Nick Coghlan <ncoghlan@gmail.com> parents: 68257 diff changeset	19 {"f_code", T_OBJECT, OFF(f_code), READONLY},
d64ac9ab4cd0 Implement PEP 380 - 'yield from' (closes #11682) Nick Coghlan <ncoghlan@gmail.com> parents: 68257 diff changeset	20 {"f_builtins", T_OBJECT, OFF(f_builtins), READONLY},
d64ac9ab4cd0 Implement PEP 380 - 'yield from' (closes #11682) Nick Coghlan <ncoghlan@gmail.com> parents: 68257 diff changeset	21 {"f_globals", T_OBJECT, OFF(f_globals), READONLY},
d64ac9ab4cd0 Implement PEP 380 - 'yield from' (closes #11682) Nick Coghlan <ncoghlan@gmail.com> parents: 68257 diff changeset	22 {"f_lasti", T_INT, OFF(f_lasti), READONLY},
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	23 {NULL} /* Sentinel */
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	24 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	25
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	26 static PyObject *
18933 09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 18510 diff changeset	27 frame_getlocals(PyFrameObject f, void closure)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	28 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	29 PyFrame_FastToLocals(f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	30 Py_INCREF(f->f_locals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	31 return f->f_locals;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	32 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	33
55372 79718ee03986 Merged revisions 72487-72488,72879 via svnmerge from Alexandre Vassalotti <alexandre@peadrop.com> parents: 54507 diff changeset	34 int
79718ee03986 Merged revisions 72487-72488,72879 via svnmerge from Alexandre Vassalotti <alexandre@peadrop.com> parents: 54507 diff changeset	35 PyFrame_GetLineNumber(PyFrameObject *f)
79718ee03986 Merged revisions 72487-72488,72879 via svnmerge from Alexandre Vassalotti <alexandre@peadrop.com> parents: 54507 diff changeset	36 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	37 if (f->f_trace)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	38 return f->f_lineno;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	39 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	40 return PyCode_Addr2Line(f->f_code, f->f_lasti);
55372 79718ee03986 Merged revisions 72487-72488,72879 via svnmerge from Alexandre Vassalotti <alexandre@peadrop.com> parents: 54507 diff changeset	41 }
79718ee03986 Merged revisions 72487-72488,72879 via svnmerge from Alexandre Vassalotti <alexandre@peadrop.com> parents: 54507 diff changeset	42
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 24462 diff changeset	43 static PyObject *
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 24462 diff changeset	44 frame_getlineno(PyFrameObject f, void closure)
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 24462 diff changeset	45 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	46 return PyLong_FromLong(PyFrame_GetLineNumber(f));
24844 cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 24462 diff changeset	47 }
cf5928fab108 This is my patch Michael W. Hudson <mwh@python.net> parents: 24462 diff changeset	48
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	49 /* Setter for f_lineno - you can set f_lineno from within a trace function in
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	50 * order to jump to a given line of code, subject to some restrictions. Most
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	51 * lines are OK to jump to because they don't make any assumptions about the
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	52 * state of the stack (obvious because you could remove the line and the code
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	53 * would still work without any stack errors), but there are some constructs
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	54 * that limit jumping:
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	55 *
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	56 * o Lines with an 'except' statement on them can't be jumped to, because
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	57 * they expect an exception to be on the top of the stack.
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	58 * o Lines that live in a 'finally' block can't be jumped from or to, since
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	59 * the END_FINALLY expects to clean up the stack after the 'try' block.
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	60 * o 'try'/'for'/'while' blocks can't be jumped into because the blockstack
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	61 * needs to be set up before their code runs, and for 'for' loops the
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	62 * iterator needs to be on the stack.
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	63 */
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	64 static int
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	65 frame_setlineno(PyFrameObject f, PyObject p_new_lineno)
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	66 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	67 int new_lineno = 0; /* The new value of f_lineno */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	68 long l_new_lineno;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	69 int overflow;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	70 int new_lasti = 0; /* The new value of f_lasti */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	71 int new_iblock = 0; /* The new value of f_iblock */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	72 unsigned char code = NULL; / The bytecode for the frame... */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	73 Py_ssize_t code_len = 0; /* ...and its length */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	74 unsigned char lnotab = NULL; / Iterating over co_lnotab */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	75 Py_ssize_t lnotab_len = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	76 int offset = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	77 int line = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	78 int addr = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	79 int min_addr = 0; /* Scanning the SETUPs and POPs */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	80 int max_addr = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	81 int delta_iblock = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	82 int min_delta_iblock = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	83 int min_iblock = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	84 int f_lasti_setup_addr = 0; /* Policing no-jump-into-finally */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	85 int new_lasti_setup_addr = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	86 int blockstack[CO_MAXBLOCKS]; /* Walking the 'finally' blocks */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	87 int in_finally[CO_MAXBLOCKS]; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	88 int blockstack_top = 0; /* (ditto) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	89 unsigned char setup_op = 0; /* (ditto) */
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	90
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	91 /* f_lineno must be an integer. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	92 if (!PyLong_CheckExact(p_new_lineno)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	93 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	94 "lineno must be an integer");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	95 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	96 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	97
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	98 /* You can only do this from within a trace function, not via
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	99 * _getframe or similar hackery. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	100 if (!f->f_trace)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	101 {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	102 PyErr_Format(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	103 "f_lineno can only be set by a"
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	104 " line trace function");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	105 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	106 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	107
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	108 /* Fail if the line comes before the start of the code block. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	109 l_new_lineno = PyLong_AsLongAndOverflow(p_new_lineno, &overflow);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	110 if (overflow
44158 81e0c0e2a8c1 Remove PyInt_CheckExact. Add PyLong_AsLongAndOverflow. Martin v. Löwis <martin@v.loewis.de> parents: 44099 diff changeset	111 #if SIZEOF_LONG > SIZEOF_INT
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	112 \|\| l_new_lineno > INT_MAX
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	113 \|\| l_new_lineno < INT_MIN
44158 81e0c0e2a8c1 Remove PyInt_CheckExact. Add PyLong_AsLongAndOverflow. Martin v. Löwis <martin@v.loewis.de> parents: 44099 diff changeset	114 #endif
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	115 ) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	116 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	117 "lineno out of range");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	118 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	119 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	120 new_lineno = (int)l_new_lineno;
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	121
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	122 if (new_lineno < f->f_code->co_firstlineno) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	123 PyErr_Format(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	124 "line %d comes before the current code block",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	125 new_lineno);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	126 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	127 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	128 else if (new_lineno == f->f_code->co_firstlineno) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	129 new_lasti = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	130 new_lineno = f->f_code->co_firstlineno;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	131 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	132 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	133 /* Find the bytecode offset for the start of the given
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	134 * line, or the first code-owning line after it. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	135 char *tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	136 PyBytes_AsStringAndSize(f->f_code->co_lnotab,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	137 &tmp, &lnotab_len);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	138 lnotab = (unsigned char *) tmp;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	139 addr = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	140 line = f->f_code->co_firstlineno;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	141 new_lasti = -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	142 for (offset = 0; offset < lnotab_len; offset += 2) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	143 addr += lnotab[offset];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	144 line += lnotab[offset+1];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	145 if (line >= new_lineno) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	146 new_lasti = addr;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	147 new_lineno = line;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	148 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	149 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	150 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	151 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	152
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	153 /* If we didn't reach the requested line, return an error. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	154 if (new_lasti == -1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	155 PyErr_Format(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	156 "line %d comes after the current code block",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	157 new_lineno);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	158 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	159 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	160
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	161 /* We're now ready to look at the bytecode. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	162 PyBytes_AsStringAndSize(f->f_code->co_code, (char **)&code, &code_len);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	163 min_addr = MIN(new_lasti, f->f_lasti);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	164 max_addr = MAX(new_lasti, f->f_lasti);
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	165
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	166 /* You can't jump onto a line with an 'except' statement on it -
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	167 * they expect to have an exception on the top of the stack, which
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	168 * won't be true if you jump to them. They always start with code
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	169 * that either pops the exception using POP_TOP (plain 'except:'
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	170 * lines do this) or duplicates the exception on the stack using
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	171 * DUP_TOP (if there's an exception type specified). See compile.c,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	172 * 'com_try_except' for the full details. There aren't any other
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	173 * cases (AFAIK) where a line's code can start with DUP_TOP or
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	174 * POP_TOP, but if any ever appear, they'll be subject to the same
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	175 * restriction (but with a different error message). */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	176 if (code[new_lasti] == DUP_TOP \|\| code[new_lasti] == POP_TOP) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	177 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	178 "can't jump to 'except' line as there's no exception");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	179 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	180 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	181
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	182 /* You can't jump into or out of a 'finally' block because the 'try'
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	183 * block leaves something on the stack for the END_FINALLY to clean
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	184 * up. So we walk the bytecode, maintaining a simulated blockstack.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	185 * When we reach the old or new address and it's in a 'finally' block
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	186 * we note the address of the corresponding SETUP_FINALLY. The jump
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	187 * is only legal if neither address is in a 'finally' block or
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	188 * they're both in the same one. 'blockstack' is a stack of the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	189 * bytecode addresses of the SETUP_X opcodes, and 'in_finally' tracks
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	190 * whether we're in a 'finally' block at each blockstack level. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	191 f_lasti_setup_addr = -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	192 new_lasti_setup_addr = -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	193 memset(blockstack, '\0', sizeof(blockstack));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	194 memset(in_finally, '\0', sizeof(in_finally));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	195 blockstack_top = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	196 for (addr = 0; addr < code_len; addr++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	197 unsigned char op = code[addr];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	198 switch (op) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	199 case SETUP_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	200 case SETUP_EXCEPT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	201 case SETUP_FINALLY:
76393 6a0a073e8461 SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes #14612) Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	202 case SETUP_WITH:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	203 blockstack[blockstack_top++] = addr;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	204 in_finally[blockstack_top-1] = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	205 break;
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	206
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	207 case POP_BLOCK:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	208 assert(blockstack_top > 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	209 setup_op = code[blockstack[blockstack_top-1]];
76393 6a0a073e8461 SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes #14612) Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	210 if (setup_op == SETUP_FINALLY \|\| setup_op == SETUP_WITH) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	211 in_finally[blockstack_top-1] = 1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	212 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	213 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	214 blockstack_top--;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	215 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	216 break;
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	217
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	218 case END_FINALLY:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	219 /* Ignore END_FINALLYs for SETUP_EXCEPTs - they exist
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	220 * in the bytecode but don't correspond to an actual
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	221 * 'finally' block. (If blockstack_top is 0, we must
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	222 * be seeing such an END_FINALLY.) */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	223 if (blockstack_top > 0) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	224 setup_op = code[blockstack[blockstack_top-1]];
76393 6a0a073e8461 SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes #14612) Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	225 if (setup_op == SETUP_FINALLY \|\| setup_op == SETUP_WITH) {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	226 blockstack_top--;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	227 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	228 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	229 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	230 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	231
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	232 /* For the addresses we're interested in, see whether they're
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	233 * within a 'finally' block and if so, remember the address
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	234 * of the SETUP_FINALLY. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	235 if (addr == new_lasti \|\| addr == f->f_lasti) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	236 int i = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	237 int setup_addr = -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	238 for (i = blockstack_top-1; i >= 0; i--) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	239 if (in_finally[i]) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	240 setup_addr = blockstack[i];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	241 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	242 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	243 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	244
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	245 if (setup_addr != -1) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	246 if (addr == new_lasti) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	247 new_lasti_setup_addr = setup_addr;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	248 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	249
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	250 if (addr == f->f_lasti) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	251 f_lasti_setup_addr = setup_addr;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	252 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	253 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	254 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	255
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	256 if (op >= HAVE_ARGUMENT) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	257 addr += 2;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	258 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	259 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	260
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	261 /* Verify that the blockstack tracking code didn't get lost. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	262 assert(blockstack_top == 0);
26717 f55f5e1e30bc Fix bug introduced by SF patch #643835, Set Next Statement for Python debuggers Neal Norwitz <nnorwitz@gmail.com> parents: 26709 diff changeset	263
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	264 /* After all that, are we jumping into / out of a 'finally' block? */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	265 if (new_lasti_setup_addr != f_lasti_setup_addr) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	266 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	267 "can't jump into or out of a 'finally' block");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	268 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	269 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	270
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	271
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	272 /* Police block-jumping (you can't jump into the middle of a block)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	273 * and ensure that the blockstack finishes up in a sensible state (by
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	274 * popping any blocks we're jumping out of). We look at all the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	275 * blockstack operations between the current position and the new
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	276 * one, and keep track of how many blocks we drop out of on the way.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	277 * By also keeping track of the lowest blockstack position we see, we
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	278 * can tell whether the jump goes into any blocks without coming out
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	279 * again - in that case we raise an exception below. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	280 delta_iblock = 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	281 for (addr = min_addr; addr < max_addr; addr++) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	282 unsigned char op = code[addr];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	283 switch (op) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	284 case SETUP_LOOP:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	285 case SETUP_EXCEPT:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	286 case SETUP_FINALLY:
76393 6a0a073e8461 SETUP_WITH acts like SETUP_FINALLY for the purposes of setting f_lineno (closes #14612) Benjamin Peterson <benjamin@python.org> parents: 68257 diff changeset	287 case SETUP_WITH:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	288 delta_iblock++;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	289 break;
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	290
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	291 case POP_BLOCK:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	292 delta_iblock--;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	293 break;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	294 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	295
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	296 min_delta_iblock = MIN(min_delta_iblock, delta_iblock);
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	297
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	298 if (op >= HAVE_ARGUMENT) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	299 addr += 2;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	300 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	301 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	302
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	303 /* Derive the absolute iblock values from the deltas. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	304 min_iblock = f->f_iblock + min_delta_iblock;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	305 if (new_lasti > f->f_lasti) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	306 /* Forwards jump. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	307 new_iblock = f->f_iblock + delta_iblock;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	308 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	309 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	310 /* Backwards jump. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	311 new_iblock = f->f_iblock - delta_iblock;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	312 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	313
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	314 /* Are we jumping into a block? */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	315 if (new_iblock > min_iblock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	316 PyErr_SetString(PyExc_ValueError,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	317 "can't jump into the middle of a block");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	318 return -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	319 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	320
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	321 /* Pop any blocks that we're jumping out of. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	322 while (f->f_iblock > new_iblock) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	323 PyTryBlock *b = &f->f_blockstack[--f->f_iblock];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	324 while ((f->f_stacktop - f->f_valuestack) > b->b_level) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	325 PyObject v = (--f->f_stacktop);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	326 Py_DECREF(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	327 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	328 }
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	329
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	330 /* Finally set the new f_lineno and f_lasti and return OK. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	331 f->f_lineno = new_lineno;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	332 f->f_lasti = new_lasti;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	333 return 0;
26686 ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	334 }
ad3f66e7fb10 This is Richie Hindle's patch Michael W. Hudson <mwh@python.net> parents: 25207 diff changeset	335
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	336 static PyObject *
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	337 frame_gettrace(PyFrameObject f, void closure)
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	338 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	339 PyObject* trace = f->f_trace;
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	340
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	341 if (trace == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	342 trace = Py_None;
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	343
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	344 Py_INCREF(trace);
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	345
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	346 return trace;
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	347 }
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	348
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	349 static int
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	350 frame_settrace(PyFrameObject f, PyObject v, void *closure)
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	351 {
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	352 PyObject* old_value;
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	353
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	354 /* We rely on f_lineno being accurate when f_trace is set. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	355 f->f_lineno = PyFrame_GetLineNumber(f);
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	356
61466 cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 55372 diff changeset	357 old_value = f->f_trace;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	358 Py_XINCREF(v);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	359 f->f_trace = v;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	360 Py_XDECREF(old_value);
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	361
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	362 return 0;
25207 1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	363 }
1e46da1e6522 A slight change to SET_LINENO-less tracing. Michael W. Hudson <mwh@python.net> parents: 25074 diff changeset	364
39442 654c380cf8b9 Merged revisions 46753-51188 via svnmerge from Thomas Wouters <thomas@python.org> parents: 38453 diff changeset	365
20015 ca7af2a5d915 Add optional docstrings to getset descriptors. Fortunately, there's Guido van Rossum <guido@python.org> parents: 20012 diff changeset	366 static PyGetSetDef frame_getsetlist[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	367 {"f_locals", (getter)frame_getlocals, NULL, NULL},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	368 {"f_lineno", (getter)frame_getlineno,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	369 (setter)frame_setlineno, NULL},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	370 {"f_trace", (getter)frame_gettrace, (setter)frame_settrace, NULL},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	371 {0}
18933 09df3254b49d Merge of descr-branch back into trunk. Tim Peters <tim.peters@gmail.com> parents: 18510 diff changeset	372 };
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	373
1079 e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	374 /* Stack frames are allocated and deallocated at a considerable rate.
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	375 In an attempt to improve the speed of function calls, we:
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	376
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	377 1. Hold a single "zombie" frame on each code object. This retains
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	378 the allocated and initialised frame object from an invocation of
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	379 the code object. The zombie is reanimated the next time we need a
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	380 frame object for that code object. Doing this saves the malloc/
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	381 realloc required when using a free_list frame that isn't the
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	382 correct size. It also saves some field initialisation.
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	383
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	384 In zombie mode, no field of PyFrameObject holds a reference, but
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	385 the following fields are still valid:
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	386
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	387 * ob_type, ob_size, f_code, f_valuestack;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	388
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	389 * f_locals, f_trace,
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	390 f_exc_type, f_exc_value, f_exc_traceback are NULL;
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	391
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	392 * f_localsplus does not require re-allocation and
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	393 the local variables in f_localsplus are NULL.
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	394
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	395 2. We also maintain a separate free list of stack frames (just like
62558 ec0fd5a6bb45 Issue #9089: Remove references to intobject.c and intobject.h from comments. Mark Dickinson <dickinsm@gmail.com> parents: 61466 diff changeset	396 floats are allocated in a special way -- see floatobject.c). When
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	397 a stack frame is on the free list, only the following members have
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	398 a meaning:
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	399 ob_type == &Frametype
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	400 f_back next item on free list, or NULL
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	401 f_stacksize size of value stack
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	402 ob_size size of localsplus
1079 e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	403 Note that the value and block stacks are preserved -- this can save
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	404 another malloc() call or two (and two free() calls as well!).
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	405 Also note that, unlike for integers, each frame object is a
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	406 malloc'ed object in its own right -- it is only the actual calls to
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	407 malloc() that we are trying to save here, not the administration.
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	408 After all, while a typical program may make millions of calls, a
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	409 call depth of more than 20 or 30 is probably already exceptional
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	410 unless the program contains run-away recursion. I hope.
23018 b1ab4bc52243 SF bug 543148: Memory leak with stackframes + inspect. Tim Peters <tim.peters@gmail.com> parents: 22626 diff changeset	411
45192 142a11b3057e Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44351 diff changeset	412 Later, PyFrame_MAXFREELIST was added to bound the # of frames saved on
23018 b1ab4bc52243 SF bug 543148: Memory leak with stackframes + inspect. Tim Peters <tim.peters@gmail.com> parents: 22626 diff changeset	413 free_list. Else programs creating lots of cyclic trash involving
b1ab4bc52243 SF bug 543148: Memory leak with stackframes + inspect. Tim Peters <tim.peters@gmail.com> parents: 22626 diff changeset	414 frames could provoke free_list into growing without bound.
1079 e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	415 */
e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	416
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	417 static PyFrameObject *free_list = NULL;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	418 static int numfree = 0; /* number of frames currently in free_list */
45192 142a11b3057e Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60568-60598,60600-60616 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44351 diff changeset	419 /* max value for numfree */
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	420 #define PyFrame_MAXFREELIST 200
1079 e4c6a0dd5c2b * bltinmodule.c: added built-in function cmp(a, b) Guido van Rossum <guido@python.org> parents: 795 diff changeset	421
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	422 static void
13456 6211315eb592 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	423 frame_dealloc(PyFrameObject *f)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	424 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	425 PyObject p, valuestack;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	426 PyCodeObject *co;
5097 57b7a03a3252 Kill all local variables when the frame is deallocated (moved here Guido van Rossum <guido@python.org> parents: 5045 diff changeset	427
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	428 PyObject_GC_UnTrack(f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	429 Py_TRASHCAN_SAFE_BEGIN(f)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	430 /* Kill all local variables */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	431 valuestack = f->f_valuestack;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	432 for (p = f->f_localsplus; p < valuestack; p++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	433 Py_CLEAR(*p);
5097 57b7a03a3252 Kill all local variables when the frame is deallocated (moved here Guido van Rossum <guido@python.org> parents: 5045 diff changeset	434
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	435 /* Free stack */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	436 if (f->f_stacktop != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	437 for (p = valuestack; p < f->f_stacktop; p++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	438 Py_XDECREF(*p);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	439 }
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	440
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	441 Py_XDECREF(f->f_back);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	442 Py_DECREF(f->f_builtins);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	443 Py_DECREF(f->f_globals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	444 Py_CLEAR(f->f_locals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	445 Py_CLEAR(f->f_trace);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	446 Py_CLEAR(f->f_exc_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	447 Py_CLEAR(f->f_exc_value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	448 Py_CLEAR(f->f_exc_traceback);
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	449
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	450 co = f->f_code;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	451 if (co->co_zombieframe == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	452 co->co_zombieframe = f;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	453 else if (numfree < PyFrame_MAXFREELIST) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	454 ++numfree;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	455 f->f_back = free_list;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	456 free_list = f;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	457 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	458 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	459 PyObject_GC_Del(f);
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	460
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	461 Py_DECREF(co);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	462 Py_TRASHCAN_SAFE_END(f)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	463 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	464
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	465 static int
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	466 frame_traverse(PyFrameObject f, visitproc visit, void arg)
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	467 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	468 PyObject fastlocals, p;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	469 int i, slots;
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	470
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	471 Py_VISIT(f->f_back);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	472 Py_VISIT(f->f_code);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	473 Py_VISIT(f->f_builtins);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	474 Py_VISIT(f->f_globals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	475 Py_VISIT(f->f_locals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	476 Py_VISIT(f->f_trace);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	477 Py_VISIT(f->f_exc_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	478 Py_VISIT(f->f_exc_value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	479 Py_VISIT(f->f_exc_traceback);
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	480
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	481 /* locals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	482 slots = f->f_code->co_nlocals + PyTuple_GET_SIZE(f->f_code->co_cellvars) + PyTuple_GET_SIZE(f->f_code->co_freevars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	483 fastlocals = f->f_localsplus;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	484 for (i = slots; --i >= 0; ++fastlocals)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	485 Py_VISIT(*fastlocals);
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	486
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	487 /* stack */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	488 if (f->f_stacktop != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	489 for (p = f->f_valuestack; p < f->f_stacktop; p++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	490 Py_VISIT(*p);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	491 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	492 return 0;
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	493 }
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	494
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	495 static void
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	496 frame_clear(PyFrameObject *f)
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	497 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	498 PyObject fastlocals, p, **oldtop;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	499 int i, slots;
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	500
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	501 /* Before anything else, make sure that this frame is clearly marked
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	502 * as being defunct! Else, e.g., a generator reachable from this
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	503 * frame may also point to this frame, believe itself to still be
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	504 * active, and try cleaning up this frame again.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	505 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	506 oldtop = f->f_stacktop;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	507 f->f_stacktop = NULL;
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	508
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	509 Py_CLEAR(f->f_exc_type);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	510 Py_CLEAR(f->f_exc_value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	511 Py_CLEAR(f->f_exc_traceback);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	512 Py_CLEAR(f->f_trace);
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	513
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	514 /* locals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	515 slots = f->f_code->co_nlocals + PyTuple_GET_SIZE(f->f_code->co_cellvars) + PyTuple_GET_SIZE(f->f_code->co_freevars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	516 fastlocals = f->f_localsplus;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	517 for (i = slots; --i >= 0; ++fastlocals)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	518 Py_CLEAR(*fastlocals);
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	519
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	520 /* stack */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	521 if (oldtop != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	522 for (p = f->f_valuestack; p < oldtop; p++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	523 Py_CLEAR(*p);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	524 }
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	525 }
f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	526
48467 c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	527 static PyObject *
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	528 frame_sizeof(PyFrameObject *f)
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	529 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	530 Py_ssize_t res, extras, ncells, nfrees;
48467 c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	531
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	532 ncells = PyTuple_GET_SIZE(f->f_code->co_cellvars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	533 nfrees = PyTuple_GET_SIZE(f->f_code->co_freevars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	534 extras = f->f_code->co_stacksize + f->f_code->co_nlocals +
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	535 ncells + nfrees;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	536 /* subtract one as it is already included in PyFrameObject */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	537 res = sizeof(PyFrameObject) + (extras-1) * sizeof(PyObject *);
48467 c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	538
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	539 return PyLong_FromSsize_t(res);
48467 c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	540 }
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	541
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	542 PyDoc_STRVAR(sizeof__doc__,
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	543 "F.__sizeof__() -> size of F in memory, in bytes");
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	544
c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	545 static PyMethodDef frame_methods[] = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	546 {"__sizeof__", (PyCFunction)frame_sizeof, METH_NOARGS,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	547 sizeof__doc__},
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	548 {NULL, NULL} /* sentinel */
48467 c0c06ffaea83 Merged revisions 64842,64853,64856,64945 via svnmerge from Robert Schuppenies <okkotonushi@googlemail.com> parents: 47594 diff changeset	549 };
18510 f4ea21a0f954 GC for frame objects. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 18237 diff changeset	550
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	551 PyTypeObject PyFrame_Type = {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	552 PyVarObject_HEAD_INIT(&PyType_Type, 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	553 "frame",
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	554 sizeof(PyFrameObject),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	555 sizeof(PyObject *),
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	556 (destructor)frame_dealloc, /* tp_dealloc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	557 0, /* tp_print */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	558 0, /* tp_getattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	559 0, /* tp_setattr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	560 0, /* tp_reserved */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	561 0, /* tp_repr */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	562 0, /* tp_as_number */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	563 0, /* tp_as_sequence */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	564 0, /* tp_as_mapping */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	565 0, /* tp_hash */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	566 0, /* tp_call */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	567 0, /* tp_str */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	568 PyObject_GenericGetAttr, /* tp_getattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	569 PyObject_GenericSetAttr, /* tp_setattro */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	570 0, /* tp_as_buffer */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	571 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,/* tp_flags */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	572 0, /* tp_doc */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	573 (traverseproc)frame_traverse, /* tp_traverse */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	574 (inquiry)frame_clear, /* tp_clear */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	575 0, /* tp_richcompare */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	576 0, /* tp_weaklistoffset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	577 0, /* tp_iter */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	578 0, /* tp_iternext */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	579 frame_methods, /* tp_methods */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	580 frame_memberlist, /* tp_members */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	581 frame_getsetlist, /* tp_getset */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	582 0, /* tp_base */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	583 0, /* tp_dict */
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	584 };
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	585
26889 12753e7b15f7 SF #561244, Micro optimizations Neal Norwitz <nnorwitz@gmail.com> parents: 26717 diff changeset	586 static PyObject *builtin_object;
12753e7b15f7 SF #561244, Micro optimizations Neal Norwitz <nnorwitz@gmail.com> parents: 26717 diff changeset	587
26923 dbfc3ef7d003 Since the _Init() are private, prefix with _, suggested by Skip Neal Norwitz <nnorwitz@gmail.com>* parents: 26889 diff changeset	588 int _PyFrame_Init()
26889 12753e7b15f7 SF #561244, Micro optimizations Neal Norwitz <nnorwitz@gmail.com> parents: 26717 diff changeset	589 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	590 builtin_object = PyUnicode_InternFromString("__builtins__");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	591 if (builtin_object == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	592 return 0;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	593 return 1;
26889 12753e7b15f7 SF #561244, Micro optimizations Neal Norwitz <nnorwitz@gmail.com> parents: 26717 diff changeset	594 }
12753e7b15f7 SF #561244, Micro optimizations Neal Norwitz <nnorwitz@gmail.com> parents: 26717 diff changeset	595
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	596 PyFrameObject *
37879 f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair Thomas Wouters <thomas@python.org> parents: 36501 diff changeset	597 PyFrame_New(PyThreadState tstate, PyCodeObject code, PyObject *globals,
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	598 PyObject *locals)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	599 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	600 PyFrameObject *back = tstate->frame;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	601 PyFrameObject *f;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	602 PyObject *builtins;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	603 Py_ssize_t i;
5013 4ca4e54c9cd8 Changes that appear to give another 12% speedup. Guido van Rossum <guido@python.org> parents: 5007 diff changeset	604
24895 c8d9592c9e74 Check in my ultra-shortlived patch #597220. Michael W. Hudson <mwh@python.net> parents: 24844 diff changeset	605 #ifdef Py_DEBUG
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	606 if (code == NULL \|\| globals == NULL \|\| !PyDict_Check(globals) \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	607 (locals != NULL && !PyMapping_Check(locals))) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	608 PyErr_BadInternalCall();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	609 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	610 }
24895 c8d9592c9e74 Check in my ultra-shortlived patch #597220. Michael W. Hudson <mwh@python.net> parents: 24844 diff changeset	611 #endif
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	612 if (back == NULL \|\| back->f_globals != globals) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	613 builtins = PyDict_GetItem(globals, builtin_object);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	614 if (builtins) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	615 if (PyModule_Check(builtins)) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	616 builtins = PyModule_GetDict(builtins);
76411 e3ab8aa0216c Issue #14385: Support other types than dict for __builtins__ Victor Stinner <victor.stinner@gmail.com> parents: 76394 diff changeset	617 assert(builtins != NULL);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	618 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	619 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	620 if (builtins == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	621 /* No builtins! Make up a minimal one
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	622 Give them 'None', at least. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	623 builtins = PyDict_New();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	624 if (builtins == NULL \|\|
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	625 PyDict_SetItemString(
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	626 builtins, "None", Py_None) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	627 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	628 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	629 else
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	630 Py_INCREF(builtins);
27706 537bfce2b730 Refactor the logic for setting f_builtins. Jeremy Hylton <jeremy@alum.mit.edu> parents: 26923 diff changeset	631
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	632 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	633 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	634 /* If we share the globals, we share the builtins.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	635 Save a lookup and a call. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	636 builtins = back->f_builtins;
76411 e3ab8aa0216c Issue #14385: Support other types than dict for __builtins__ Victor Stinner <victor.stinner@gmail.com> parents: 76394 diff changeset	637 assert(builtins != NULL);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	638 Py_INCREF(builtins);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	639 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	640 if (code->co_zombieframe != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	641 f = code->co_zombieframe;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	642 code->co_zombieframe = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	643 _Py_NewReference((PyObject *)f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	644 assert(f->f_code == code);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	645 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	646 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	647 Py_ssize_t extras, ncells, nfrees;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	648 ncells = PyTuple_GET_SIZE(code->co_cellvars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	649 nfrees = PyTuple_GET_SIZE(code->co_freevars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	650 extras = code->co_stacksize + code->co_nlocals + ncells +
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	651 nfrees;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	652 if (free_list == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	653 f = PyObject_GC_NewVar(PyFrameObject, &PyFrame_Type,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	654 extras);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	655 if (f == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	656 Py_DECREF(builtins);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	657 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	658 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	659 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	660 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	661 assert(numfree > 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	662 --numfree;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	663 f = free_list;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	664 free_list = free_list->f_back;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	665 if (Py_SIZE(f) < extras) {
77252 588ea940e5e3 Issue #14909: A number of places were using PyMem_Realloc() apis and Kristjan Valur Jonsson <sweskman@gmail.com> parents: 76411 diff changeset	666 PyFrameObject *new_f = PyObject_GC_Resize(PyFrameObject, f, extras);
588ea940e5e3 Issue #14909: A number of places were using PyMem_Realloc() apis and Kristjan Valur Jonsson <sweskman@gmail.com> parents: 76411 diff changeset	667 if (new_f == NULL) {
588ea940e5e3 Issue #14909: A number of places were using PyMem_Realloc() apis and Kristjan Valur Jonsson <sweskman@gmail.com> parents: 76411 diff changeset	668 PyObject_GC_Del(f);
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	669 Py_DECREF(builtins);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	670 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	671 }
77252 588ea940e5e3 Issue #14909: A number of places were using PyMem_Realloc() apis and Kristjan Valur Jonsson <sweskman@gmail.com> parents: 76411 diff changeset	672 f = new_f;
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	673 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	674 _Py_NewReference((PyObject *)f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	675 }
38453 29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk. Thomas Wouters <thomas@python.org> parents: 37879 diff changeset	676
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	677 f->f_code = code;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	678 extras = code->co_nlocals + ncells + nfrees;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	679 f->f_valuestack = f->f_localsplus + extras;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	680 for (i=0; i<extras; i++)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	681 f->f_localsplus[i] = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	682 f->f_locals = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	683 f->f_trace = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	684 f->f_exc_type = f->f_exc_value = f->f_exc_traceback = NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	685 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	686 f->f_stacktop = f->f_valuestack;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	687 f->f_builtins = builtins;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	688 Py_XINCREF(back);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	689 f->f_back = back;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	690 Py_INCREF(code);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	691 Py_INCREF(globals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	692 f->f_globals = globals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	693 /* Most functions have CO_NEWLOCALS and CO_OPTIMIZED set. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	694 if ((code->co_flags & (CO_NEWLOCALS \| CO_OPTIMIZED)) ==
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	695 (CO_NEWLOCALS \| CO_OPTIMIZED))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	696 ; /* f_locals = NULL; will be set by PyFrame_FastToLocals() */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	697 else if (code->co_flags & CO_NEWLOCALS) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	698 locals = PyDict_New();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	699 if (locals == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	700 Py_DECREF(f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	701 return NULL;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	702 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	703 f->f_locals = locals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	704 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	705 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	706 if (locals == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	707 locals = globals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	708 Py_INCREF(locals);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	709 f->f_locals = locals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	710 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	711 f->f_tstate = tstate;
5013 4ca4e54c9cd8 Changes that appear to give another 12% speedup. Guido van Rossum <guido@python.org> parents: 5007 diff changeset	712
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	713 f->f_lasti = -1;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	714 f->f_lineno = code->co_firstlineno;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	715 f->f_iblock = 0;
5013 4ca4e54c9cd8 Changes that appear to give another 12% speedup. Guido van Rossum <guido@python.org> parents: 5007 diff changeset	716
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	717 _PyObject_GC_TRACK(f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	718 return f;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	719 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	720
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	721 /* Block management */
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	722
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	723 void
13456 6211315eb592 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	724 PyFrame_BlockSetup(PyFrameObject *f, int type, int handler, int level)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	725 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	726 PyTryBlock *b;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	727 if (f->f_iblock >= CO_MAXBLOCKS)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	728 Py_FatalError("XXX block stack overflow");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	729 b = &f->f_blockstack[f->f_iblock++];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	730 b->b_type = type;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	731 b->b_level = level;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	732 b->b_handler = handler;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	733 }
a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	734
5350 688c3fd42ca6 Quickly renamed. Guido van Rossum <guido@python.org> parents: 5260 diff changeset	735 PyTryBlock *
13456 6211315eb592 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	736 PyFrame_BlockPop(PyFrameObject *f)
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	737 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	738 PyTryBlock *b;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	739 if (f->f_iblock <= 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	740 Py_FatalError("XXX block stack underflow");
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	741 b = &f->f_blockstack[--f->f_iblock];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	742 return b;
86 a6934380c6e7 "Compiling" version Guido van Rossum <guido@python.org> parents: diff changeset	743 }
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	744
41554 06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	745 /* Convert between "fast" version of locals and dictionary version.
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	746
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	747 map and values are input arguments. map is a tuple of strings.
41554 06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	748 values is an array of PyObject*. At index i, map[i] is the name of
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	749 the variable with value values[i]. The function copies the first
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	750 nmap variable from map/values into dict. If values[i] is NULL,
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	751 the variable is deleted from dict.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	752
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	753 If deref is true, then the values being copied are cell variables
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	754 and the value is extracted from the cell variable before being put
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	755 in dict.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	756
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	757 Exceptions raised while modifying the dict are silently ignored,
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	758 because there is no good way to report them.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	759 */
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	760
17518 f939ce52a734 Make some private symbols static. Guido van Rossum <guido@python.org> parents: 17104 diff changeset	761 static void
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 35766 diff changeset	762 map_to_dict(PyObject map, Py_ssize_t nmap, PyObject dict, PyObject **values,
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	763 int deref)
17104 a488a63cb867 Fix PyFrame_FastToLocals() and counterpart to deal with cells and Jeremy Hylton <jeremy@alum.mit.edu> parents: 17034 diff changeset	764 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	765 Py_ssize_t j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	766 assert(PyTuple_Check(map));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	767 assert(PyDict_Check(dict));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	768 assert(PyTuple_Size(map) >= nmap);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	769 for (j = nmap; --j >= 0; ) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	770 PyObject *key = PyTuple_GET_ITEM(map, j);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	771 PyObject *value = values[j];
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	772 assert(PyUnicode_Check(key));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	773 if (deref) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	774 assert(PyCell_Check(value));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	775 value = PyCell_GET(value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	776 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	777 if (value == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	778 if (PyObject_DelItem(dict, key) != 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	779 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	780 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	781 else {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	782 if (PyObject_SetItem(dict, key, value) != 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	783 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	784 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	785 }
17104 a488a63cb867 Fix PyFrame_FastToLocals() and counterpart to deal with cells and Jeremy Hylton <jeremy@alum.mit.edu> parents: 17034 diff changeset	786 }
a488a63cb867 Fix PyFrame_FastToLocals() and counterpart to deal with cells and Jeremy Hylton <jeremy@alum.mit.edu> parents: 17034 diff changeset	787
41554 06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	788 /* Copy values from the "locals" dict into the fast locals.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	789
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	790 dict is an input argument containing string keys representing
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	791 variables names and arbitrary PyObject* as values.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	792
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	793 map and values are input arguments. map is a tuple of strings.
41554 06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	794 values is an array of PyObject*. At index i, map[i] is the name of
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	795 the variable with value values[i]. The function copies the first
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	796 nmap variable from map/values into dict. If values[i] is NULL,
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	797 the variable is deleted from dict.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	798
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	799 If deref is true, then the values being copied are cell variables
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	800 and the value is extracted from the cell variable before being put
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	801 in dict. If clear is true, then variables in map but not in dict
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	802 are set to NULL in map; if clear is false, variables missing in
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	803 dict are ignored.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	804
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	805 Exceptions raised while modifying the dict are silently ignored,
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	806 because there is no good way to report them.
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	807 */
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from Guido van Rossum <guido@python.org> parents: 40626 diff changeset	808
17519 f9dfd587c142 Make one more private symbol static. Guido van Rossum <guido@python.org> parents: 17518 diff changeset	809 static void
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 35766 diff changeset	810 dict_to_map(PyObject map, Py_ssize_t nmap, PyObject dict, PyObject **values,
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	811 int deref, int clear)
17104 a488a63cb867 Fix PyFrame_FastToLocals() and counterpart to deal with cells and Jeremy Hylton <jeremy@alum.mit.edu> parents: 17034 diff changeset	812 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	813 Py_ssize_t j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	814 assert(PyTuple_Check(map));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	815 assert(PyDict_Check(dict));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	816 assert(PyTuple_Size(map) >= nmap);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	817 for (j = nmap; --j >= 0; ) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	818 PyObject *key = PyTuple_GET_ITEM(map, j);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	819 PyObject *value = PyObject_GetItem(dict, key);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	820 assert(PyUnicode_Check(key));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	821 /* We only care about NULLs if clear is true. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	822 if (value == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	823 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	824 if (!clear)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	825 continue;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	826 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	827 if (deref) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	828 assert(PyCell_Check(values[j]));
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	829 if (PyCell_GET(values[j]) != value) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	830 if (PyCell_Set(values[j], value) < 0)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	831 PyErr_Clear();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	832 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	833 } else if (values[j] != value) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	834 Py_XINCREF(value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	835 Py_XDECREF(values[j]);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	836 values[j] = value;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	837 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	838 Py_XDECREF(value);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	839 }
17104 a488a63cb867 Fix PyFrame_FastToLocals() and counterpart to deal with cells and Jeremy Hylton <jeremy@alum.mit.edu> parents: 17034 diff changeset	840 }
16355 e4420c2468f9 Remove f_closure slot of frameobject and use f_localsplus instead. Jeremy Hylton <jeremy@alum.mit.edu> parents: 16257 diff changeset	841
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	842 void
13456 6211315eb592 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	843 PyFrame_FastToLocals(PyFrameObject *f)
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	844 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	845 /* Merge fast locals into f->f_locals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	846 PyObject locals, map;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	847 PyObject **fast;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	848 PyObject error_type, error_value, *error_traceback;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	849 PyCodeObject *co;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	850 Py_ssize_t j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	851 int ncells, nfreevars;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	852 if (f == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	853 return;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	854 locals = f->f_locals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	855 if (locals == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	856 locals = f->f_locals = PyDict_New();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	857 if (locals == NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	858 PyErr_Clear(); /* Can't report it :-( */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	859 return;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	860 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	861 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	862 co = f->f_code;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	863 map = co->co_varnames;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	864 if (!PyTuple_Check(map))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	865 return;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	866 PyErr_Fetch(&error_type, &error_value, &error_traceback);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	867 fast = f->f_localsplus;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	868 j = PyTuple_GET_SIZE(map);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	869 if (j > co->co_nlocals)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	870 j = co->co_nlocals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	871 if (co->co_nlocals)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	872 map_to_dict(map, j, locals, fast, 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	873 ncells = PyTuple_GET_SIZE(co->co_cellvars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	874 nfreevars = PyTuple_GET_SIZE(co->co_freevars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	875 if (ncells \|\| nfreevars) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	876 map_to_dict(co->co_cellvars, ncells,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	877 locals, fast + co->co_nlocals, 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	878 /* If the namespace is unoptimized, then one of the
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	879 following cases applies:
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	880 1. It does not contain free variables, because it
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	881 uses import * or is a top-level namespace.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	882 2. It is a class namespace.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	883 We don't want to accidentally copy free variables
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	884 into the locals dict used by the class.
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	885 */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	886 if (co->co_flags & CO_OPTIMIZED) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	887 map_to_dict(co->co_freevars, nfreevars,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	888 locals, fast + co->co_nlocals + ncells, 1);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	889 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	890 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	891 PyErr_Restore(error_type, error_value, error_traceback);
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	892 }
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	893
b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	894 void
13456 6211315eb592 ANSI-fication of the sources. Fred Drake <fdrake@acm.org> parents: 13256 diff changeset	895 PyFrame_LocalsToFast(PyFrameObject *f, int clear)
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	896 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	897 /* Merge f->f_locals into fast locals */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	898 PyObject locals, map;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	899 PyObject **fast;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	900 PyObject error_type, error_value, *error_traceback;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	901 PyCodeObject *co;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	902 Py_ssize_t j;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	903 int ncells, nfreevars;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	904 if (f == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	905 return;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	906 locals = f->f_locals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	907 co = f->f_code;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	908 map = co->co_varnames;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	909 if (locals == NULL)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	910 return;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	911 if (!PyTuple_Check(map))
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	912 return;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	913 PyErr_Fetch(&error_type, &error_value, &error_traceback);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	914 fast = f->f_localsplus;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	915 j = PyTuple_GET_SIZE(map);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	916 if (j > co->co_nlocals)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	917 j = co->co_nlocals;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	918 if (co->co_nlocals)
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	919 dict_to_map(co->co_varnames, j, locals, fast, 0, clear);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	920 ncells = PyTuple_GET_SIZE(co->co_cellvars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	921 nfreevars = PyTuple_GET_SIZE(co->co_freevars);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	922 if (ncells \|\| nfreevars) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	923 dict_to_map(co->co_cellvars, ncells,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	924 locals, fast + co->co_nlocals, 1, clear);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	925 /* Same test as in PyFrame_FastToLocals() above. */
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	926 if (co->co_flags & CO_OPTIMIZED) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	927 dict_to_map(co->co_freevars, nfreevars,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	928 locals, fast + co->co_nlocals + ncells, 1,
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	929 clear);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	930 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	931 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	932 PyErr_Restore(error_type, error_value, error_traceback);
1848 b724599401ff Merge back to main trunk Guido van Rossum <guido@python.org> parents: 1334 diff changeset	933 }
5933 b210d2059812 Provide a dummy empty directory as f_builtins instead of failing, when Guido van Rossum <guido@python.org> parents: 5921 diff changeset	934
b210d2059812 Provide a dummy empty directory as f_builtins instead of failing, when Guido van Rossum <guido@python.org> parents: 5921 diff changeset	935 /* Clear out the free list */
45371 7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	936 int
7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	937 PyFrame_ClearFreeList(void)
5933 b210d2059812 Provide a dummy empty directory as f_builtins instead of failing, when Guido van Rossum <guido@python.org> parents: 5921 diff changeset	938 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	939 int freelist_size = numfree;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	940
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	941 while (free_list != NULL) {
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	942 PyFrameObject *f = free_list;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	943 free_list = free_list->f_back;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	944 PyObject_GC_Del(f);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	945 --numfree;
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	946 }
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	947 assert(numfree == 0);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	948 return freelist_size;
45371 7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	949 }
7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	950
7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	951 void
7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	952 PyFrame_Fini(void)
7c4c46342137 Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60845 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45192 diff changeset	953 {
61467 f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	954 (void)PyFrame_ClearFreeList();
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	955 Py_XDECREF(builtin_object);
f197407bdba2 Recorded merge of revisions 81032 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 54507 diff changeset	956 builtin_object = NULL;
5933 b210d2059812 Provide a dummy empty directory as f_builtins instead of failing, when Guido van Rossum <guido@python.org> parents: 5921 diff changeset	957 }
77577 d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	958
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	959 /* Print summary info about the state of the optimized allocator */
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	960 void
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	961 _PyFrame_DebugMallocStats(FILE *out)
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	962 {
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	963 _PyDebugAllocatorStats(out,
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	964 "free PyFrameObject",
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	965 numfree, sizeof(PyFrameObject));
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	966 }
d63a80abfbec Issue #14785: Add sys._debugmallocstats() to help debug low-level memory allocation issues David Malcolm <dmalcolm@redhat.com> parents: 77252 diff changeset	967

Mercurial > cpython-lru_cache-weakref

annotate Objects/frameobject.c @ 79691:05c8928362ee