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bpo-43933: Set frame.f_lineno during call to __exit__#25719

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Merged
markshannon merged 3 commits into from
Apr 30, 2021
Merged

bpo-43933: Set frame.f_lineno during call to __exit__ #25719

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aa492cb
Set line number of __exit__ call in with statement to that of the wit…
markshannon Apr 29, 2021
99e45d8
Add NEWS
markshannon Apr 29, 2021
d22409e
Update importlib
markshannon Apr 29, 2021
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2 changes: 1 addition & 1 deletion Lib/test/test_dis.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -1087,7 +1087,7 @@ def jumpy():
Instruction(opname='CALL_FUNCTION', opcode=131, arg=1, argval=1, argrepr='', offset=154, starts_line=None, is_jump_target=False),
Instruction(opname='POP_TOP', opcode=1, arg=None, argval=None, argrepr='', offset=156, starts_line=None, is_jump_target=False),
Instruction(opname='POP_BLOCK', opcode=87, arg=None, argval=None, argrepr='', offset=158, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=160, starts_line=None, is_jump_target=False),
Instruction(opname='LOAD_CONST', opcode=100, arg=0, argval=None, argrepr='None', offset=160, starts_line=25, is_jump_target=False),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=162, starts_line=None, is_jump_target=False),
Instruction(opname='DUP_TOP', opcode=4, arg=None, argval=None, argrepr='', offset=164, starts_line=None, is_jump_target=False),
Instruction(opname='CALL_FUNCTION', opcode=131, arg=3, argval=3, argrepr='', offset=166, starts_line=None, is_jump_target=False),
Expand Down
3 changes: 2 additions & 1 deletion Lib/test/test_sys_settrace.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -936,10 +936,11 @@ def func():
(-4, 'line'),
(-4, 'return'),
(2, 'line'),
(1, 'line'),
(-3, 'call'),
(-2, 'line'),
(-2, 'return'),
(2, 'return')])
(1, 'return')])

def test_if_false_in_try_except(self):

Expand Down
2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2021-04-29-13-49-57.bpo-43933.TueFdQ.rst
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,2 @@
Set frame.f_lineno to the line number of the 'with' kweyword when executing
the call to ``__exit__``.
12 changes: 8 additions & 4 deletions Python/compile.c
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Original file line numberDiff line numberDiff line change
Expand Up@@ -1745,6 +1745,7 @@ static int
compiler_unwind_fblock(struct compiler *c, struct fblockinfo *info,
int preserve_tos)
{
int loc;
switch (info->fb_type) {
case WHILE_LOOP:
case EXCEPTION_HANDLER:
Expand DownExpand Up@@ -1797,6 +1798,8 @@ compiler_unwind_fblock(struct compiler *c, struct fblockinfo *info,

case WITH:
case ASYNC_WITH:
loc = c->u->u_lineno;
SET_LOC(c, (stmt_ty)info->fb_datum);
ADDOP(c, POP_BLOCK);
if (preserve_tos) {
ADDOP(c, ROT_TWO);
Expand All@@ -1810,6 +1813,7 @@ compiler_unwind_fblock(struct compiler *c, struct fblockinfo *info,
ADDOP(c, YIELD_FROM);
}
ADDOP(c, POP_TOP);
c->u->u_lineno = loc;
return 1;

case HANDLER_CLEANUP:
Expand DownExpand Up@@ -4990,7 +4994,7 @@ compiler_async_with(struct compiler *c, stmt_ty s, int pos)

/* SETUP_ASYNC_WITH pushes a finally block. */
compiler_use_next_block(c, block);
if (!compiler_push_fblock(c, ASYNC_WITH, block, final, NULL)) {
if (!compiler_push_fblock(c, ASYNC_WITH, block, final, s)) {
return 0;
}

Expand All@@ -5016,6 +5020,7 @@ compiler_async_with(struct compiler *c, stmt_ty s, int pos)
/* For successful outcome:
* call __exit__(None, None, None)
*/
SET_LOC(c, s);
if(!compiler_call_exit_with_nones(c))
return 0;
ADDOP(c, GET_AWAITABLE);
Expand All@@ -5028,7 +5033,6 @@ compiler_async_with(struct compiler *c, stmt_ty s, int pos)

/* For exceptional outcome: */
compiler_use_next_block(c, final);

ADDOP(c, WITH_EXCEPT_START);
ADDOP(c, GET_AWAITABLE);
ADDOP_LOAD_CONST(c, Py_None);
Expand DownExpand Up@@ -5082,7 +5086,7 @@ compiler_with(struct compiler *c, stmt_ty s, int pos)

/* SETUP_WITH pushes a finally block. */
compiler_use_next_block(c, block);
if (!compiler_push_fblock(c, WITH, block, final, NULL)) {
if (!compiler_push_fblock(c, WITH, block, final, s)) {
return 0;
}

Expand DownExpand Up@@ -5112,14 +5116,14 @@ compiler_with(struct compiler *c, stmt_ty s, int pos)
/* For successful outcome:
* call __exit__(None, None, None)
*/
SET_LOC(c, s);
if (!compiler_call_exit_with_nones(c))
return 0;
ADDOP(c, POP_TOP);
ADDOP_JUMP(c, JUMP_FORWARD, exit);

/* For exceptional outcome: */
compiler_use_next_block(c, final);

ADDOP(c, WITH_EXCEPT_START);
compiler_with_except_finish(c);

Expand Down
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