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Fix #789: Reduce False positives on A7-1-2 (VariableMissingConstexpr.ql) #794

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merged 7 commits into from
Nov 25, 2024

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rak3-sh
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@rak3-sh rak3-sh commented Nov 11, 2024

Description

This PR fixes #789. Specifically it implements the below changes.

  1. Don't raise alerts on non-static member variables.
  2. Check the qualifiers of Call as well in isCompileTimeEvaluatedCall (using isCompileTimeEvaluatedExpression) to avoid raising this alert variables initialized by compiler generated variables. (e.g. range based for-loops).

Change request type

  • Release or process automation (GitHub workflows, internal scripts)
  • Internal documentation
  • External documentation
  • Query files (.ql, .qll, .qls or unit tests)
  • External scripts (analysis report or other code shipped as part of a release)

Rules with added or modified queries

  • No rules added
  • Queries have been added for the following rules:
    • rule number here
  • Queries have been modified for the following rules:
    • A7-1-2

Release change checklist

A change note (development_handbook.md#change-notes) is required for any pull request which modifies:

  • The structure or layout of the release artifacts.
  • The evaluation performance (memory, execution time) of an existing query.
  • The results of an existing query in any circumstance.

If you are only adding new rule queries, a change note is not required.

Author: Is a change note required?

  • Yes
  • No

🚨🚨🚨
Reviewer: Confirm that format of shared queries (not the .qll file, the
.ql file that imports it) is valid by running them within VS Code.

  • Confirmed

Reviewer: Confirm that either a change note is not required or the change note is required and has been added.

  • Confirmed

Query development review checklist

For PRs that add new queries or modify existing queries, the following checklist should be completed by both the author and reviewer:

Author

  • Have all the relevant rule package description files been checked in?
  • Have you verified that the metadata properties of each new query is set appropriately?
  • Do all the unit tests contain both "COMPLIANT" and "NON_COMPLIANT" cases?
  • Are the alert messages properly formatted and consistent with the style guide?
  • Have you run the queries on OpenPilot and verified that the performance and results are acceptable?
    As a rule of thumb, predicates specific to the query should take no more than 1 minute, and for simple queries be under 10 seconds. If this is not the case, this should be highlighted and agreed in the code review process.
  • Does the query have an appropriate level of in-query comments/documentation?
  • Have you considered/identified possible edge cases?
  • Does the query not reinvent features in the standard library?
  • Can the query be simplified further (not golfed!)

Reviewer

  • Have all the relevant rule package description files been checked in?
  • Have you verified that the metadata properties of each new query is set appropriately?
  • Do all the unit tests contain both "COMPLIANT" and "NON_COMPLIANT" cases?
  • Are the alert messages properly formatted and consistent with the style guide?
  • Have you run the queries on OpenPilot and verified that the performance and results are acceptable?
    As a rule of thumb, predicates specific to the query should take no more than 1 minute, and for simple queries be under 10 seconds. If this is not the case, this should be highlighted and agreed in the code review process.
  • Does the query have an appropriate level of in-query comments/documentation?
  • Have you considered/identified possible edge cases?
  • Does the query not reinvent features in the standard library?
  • Can the query be simplified further (not golfed!)

@rak3-sh
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rak3-sh commented Nov 11, 2024

@lcartey : Requesting your review on this PR to fix #789. Let me know your valuable suggestions!

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@lcartey lcartey left a comment

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Thanks @rak3-sh! I have a suggestion on how to handle the non-static members.

cpp/autosar/src/rules/A7-1-2/VariableMissingConstexpr.ql Outdated Show resolved Hide resolved
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lcartey commented Nov 22, 2024

@rak3-sh a couple of missing markers, otherwise looks good!

@rak3-sh rak3-sh requested a review from lcartey November 25, 2024 01:17
@lcartey lcartey added this pull request to the merge queue Nov 25, 2024
Merged via the queue into github:main with commit 03be7b8 Nov 25, 2024
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A7-1-2: Query proposes to add constexpr to non-static data members (and other problems)
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