Staging
v0.5.1
v0.5.1
https://github.com/python/cpython
Revision 9684cf69e32ae442c7be54521073ac78557f3bbf authored by Miss Islington (bot) on 07 November 2017, 00:44:23 UTC, committed by Victor Stinner on 07 November 2017, 00:44:23 UTC
(cherry picked from commit e56ab746a965277ffcc4396d8a0902b6e072d049)
1 parent a6ffec2
Tip revision: 9684cf69e32ae442c7be54521073ac78557f3bbf authored by Miss Islington (bot) on 07 November 2017, 00:44:23 UTC
bpo-31770: Prevent a crash and refleaks when calling sqlite3.Cursor.__init__() more than once (GH-3968) (#4301)
bpo-31770: Prevent a crash and refleaks when calling sqlite3.Cursor.__init__() more than once (GH-3968) (#4301)
Tip revision: 9684cf6
wordcode_helpers.h
/* This file contains code shared by the compiler and the peephole
optimizer.
*/
#ifdef WORDS_BIGENDIAN
# define PACKOPARG(opcode, oparg) ((_Py_CODEUNIT)(((opcode) << 8) | (oparg)))
#else
# define PACKOPARG(opcode, oparg) ((_Py_CODEUNIT)(((oparg) << 8) | (opcode)))
#endif
/* Minimum number of code units necessary to encode instruction with
EXTENDED_ARGs */
static int
instrsize(unsigned int oparg)
{
return oparg <= 0xff ? 1 :
oparg <= 0xffff ? 2 :
oparg <= 0xffffff ? 3 :
4;
}
/* Spits out op/oparg pair using ilen bytes. codestr should be pointed at the
desired location of the first EXTENDED_ARG */
static void
write_op_arg(_Py_CODEUNIT *codestr, unsigned char opcode,
unsigned int oparg, int ilen)
{
switch (ilen) {
case 4:
*codestr++ = PACKOPARG(EXTENDED_ARG, (oparg >> 24) & 0xff);
/* fall through */
case 3:
*codestr++ = PACKOPARG(EXTENDED_ARG, (oparg >> 16) & 0xff);
/* fall through */
case 2:
*codestr++ = PACKOPARG(EXTENDED_ARG, (oparg >> 8) & 0xff);
/* fall through */
case 1:
*codestr++ = PACKOPARG(opcode, oparg & 0xff);
break;
default:
assert(0);
}
}
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...