Implement Python 3.8 && 3.9 try-except-finally logic #493
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
- Add tests for simple cases of try-except-finally; - Implement `JUMP_IF_NOT_EXC_MATCH_A` with a fake `CMP_EXCEPTION` followed by a `POP_JUMP_IF_TRUE`; - Implement `BEGIN_FINALLY` with a fake `LOAD_CONST_A None`; - Implement Python 3.8+ specific `SETUP_FINALLY_A` handling both EXCEPT and FINALLY cases. We guess which is which by looking at the targetted block that seems to either be a POP_TOP or a DUP_TOP in the case of an EXCEPT block; - Implement RERAISE with a fake END_FINALLY; - In Python 3.9+, skip the duplicated code from the FINALLY blocks with a jump in bytecode and a fake `END_FINALLY`.
This was referenced Jun 24, 2024
|
Fantastic update! I think this one works the best so far. There are still a few I'm not able to resolve, but I'm reviewing everyone’s repos to get more insights. Unsupported opcode: LOAD_ASSERTION_ERROR |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Add tests for simple cases of try-except-finally (rename one old Python 2.6 test);
Implement
JUMP_IF_NOT_EXC_MATCH_Awith a fakeCMP_EXCEPTIONfollowed by aPOP_JUMP_IF_TRUE;Implement
BEGIN_FINALLYwith a fakeLOAD_CONST_A None;Implement Python 3.8+ specific
SETUP_FINALLY_Ahandling both EXCEPT and FINALLY cases. We guess which is which by looking at the targeted block that seems to either be aPOP_TOPor aDUP_TOPin the case of an EXCEPT block;Implement
RERAISEwith a fakeEND_FINALLY;In Python 3.9+, emulate a
BEGIN_FINALLYwhenPOP_BLOCKis not followed by aJUMP_FORWARD_A(maybe source of bugs);In Python 3.9+, skip the duplicated code from the FINALLY blocks with a jump in bytecode and a fake
END_FINALLY.