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bpo-43495 : Push missing frame block in compile.c #24865

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Merged
merged 1 commit into from
Apr 7, 2021
Merged

bpo-43495 : Push missing frame block in compile.c #24865

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11 changes: 10 additions & 1 deletion Python/compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -116,7 +116,8 @@ compiler IR.
*/

enum fblocktype { WHILE_LOOP, FOR_LOOP, TRY_EXCEPT, FINALLY_TRY, FINALLY_END,
WITH, ASYNC_WITH, HANDLER_CLEANUP, POP_VALUE, EXCEPTION_HANDLER };
WITH, ASYNC_WITH, HANDLER_CLEANUP, POP_VALUE, EXCEPTION_HANDLER,
ASYNC_COMPREHENSION_GENERATOR };

struct fblockinfo {
enum fblocktype fb_type;
Expand Down Expand Up @@ -1713,6 +1714,7 @@ compiler_unwind_fblock(struct compiler *c, struct fblockinfo *info,
switch (info->fb_type) {
case WHILE_LOOP:
case EXCEPTION_HANDLER:
case ASYNC_COMPREHENSION_GENERATOR:
return 1;

case FOR_LOOP:
Expand Down Expand Up @@ -4580,6 +4582,11 @@ compiler_async_comprehension_generator(struct compiler *c,
}

compiler_use_next_block(c, start);
/* Runtime will push a block here, so we need to account for that */
if (!compiler_push_fblock(c, ASYNC_COMPREHENSION_GENERATOR, start,
NULL, NULL)) {
return 0;
}

ADDOP_JUMP(c, SETUP_FINALLY, except);
ADDOP(c, GET_ANEXT);
Expand Down Expand Up @@ -4634,6 +4641,8 @@ compiler_async_comprehension_generator(struct compiler *c,
compiler_use_next_block(c, if_cleanup);
ADDOP_JUMP(c, JUMP_ABSOLUTE, start);

compiler_pop_fblock(c, ASYNC_COMPREHENSION_GENERATOR, start);

compiler_use_next_block(c, except);
ADDOP(c, END_ASYNC_FOR);

Expand Down