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Bug #1512814, Fix incorrect lineno's when code within a function

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had more than 255 blank lines.  Byte codes need to go first, line #s second.
This commit is contained in:
Neal Norwitz 2006-07-16 01:50:38 +00:00
parent ec5948aae2
commit 84be93b2db
3 changed files with 33 additions and 5 deletions
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11
Python/compile.c
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@ -4098,9 +4098,10 @@ corresponding to a bytecode address A should do something like this
In order for this to work, when the addr field increments by more than 255,
the line # increment in each pair generated must be 0 until the remaining addr
increment is < 256. So, in the example above, com_set_lineno should not (as
was actually done until 2.2) expand 300, 300 to 255, 255, 45, 45, but to
255, 0, 45, 255, 0, 45.
increment is < 256. So, in the example above, assemble_lnotab (it used
to be called com_set_lineno) should not (as was actually done until 2.2)
expand 300, 300 to 255, 255, 45, 45,
but to 255, 0, 45, 255, 0, 45.
*/
static int
@ -4155,12 +4156,12 @@ assemble_lnotab(struct assembler *a, struct instr *i)
}
lnotab = (unsigned char *)
PyString_AS_STRING(a->a_lnotab) + a->a_lnotab_off;
*lnotab++ = 255;
*lnotab++ = d_bytecode;
*lnotab++ = 255;
d_bytecode = 0;
for (j = 1; j < ncodes; j++) {
*lnotab++ = 255;
*lnotab++ = 0;
*lnotab++ = 255;
}
d_lineno -= ncodes * 255;
a->a_lnotab_off += ncodes * 2;