slither-mutate: (AOR) Fix for dynamic array operations #2484
Conversation
WalkthroughThe Changes
Sequence Diagram(s)sequenceDiagram
participant Developer
participant AORMutator
participant MutatorHelper
Developer->>AORMutator: Initiate mutation process
AORMutator->>MutatorHelper: Import core expressions/types
Note over AORMutator, Developer: Additional imports like Variable, CallExpression, etc.
AORMutator->>AORMutator: Check for dynamic array operations (.push, .pop)
alt Dynamic array operation found
AORMutator-->>AORMutator: Skip specific IR operations
end
AORMutator->>Developer: Return mutated code
This diagram showcases the high-level interactions between the developer initiating the mutation process and the Tip Early access features: enabledWe are currently testing the following features in early access:
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Actionable comments posted: 1
Outside diff range and nitpick comments (1)
slither/tools/mutator/mutators/AOR.py (1)
Line range hint
67-79: The mutation logic for arithmetic operations is correctly implemented, but consider using a more Pythonic way to check for non-membership.- if not line_no[0] in self.dont_mutate_line: + if line_no[0] not in self.dont_mutate_line:Tools
Ruff
33-33: Do not use bare
except(E722)
Review details
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Files selected for processing (1)
- slither/tools/mutator/mutators/AOR.py (2 hunks)
Additional context used
Ruff
slither/tools/mutator/mutators/AOR.py
33-33: Do not use bare
except(E722)
79-79: Test for membership should be
not in(E713)Convert to
not in
Additional comments not posted (2)
slither/tools/mutator/mutators/AOR.py (2)
5-10: New imports added to support the changes in_mutatemethod handling dynamic arrays.
36-65: Special handling for.pushand.popon dynamic arrays is implemented to avoid crashes by skipping certain IR operations. This aligns with the PR objectives to fix crashes related to these operations.
| @@ -27,7 +32,39 @@ def _mutate(self) -> Dict: | |||
| ir_expression = node.expression | |||
| except: # pylint: disable=bare-except | |||
There was a problem hiding this comment.
Avoid using bare except statements as they can obscure real errors.
- except: # pylint: disable=bare-except
+ except Exception as e: # pylint: disable=broad-except
+ # Consider logging the exception or handling specific exceptions if possible.Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| except: # pylint: disable=bare-except | |
| except Exception as e: # pylint: disable=broad-except | |
| # Consider logging the exception or handling specific exceptions if possible. |
Tools
Ruff
33-33: Do not use bare
except(E722)
Fix a crash with dynamic arrays. Due to how
.pushand.popoperations are converted to the IR a binary operations is present even if it's not in the code, this causes a crash when trying to replace it. The fix skip the.popoperation entirely and last 6 IR operations which are generated when converting to the IR for a.push.Summary by CodeRabbit
.pushand.popto prevent incorrect mutations.