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@CAIMEOX CAIMEOX commented Apr 2, 2024

Summary by CodeRabbit

  • Documentation
    • Added warnings in the documentation for various data structures (deque, hash map, immutable set, list, priority queue, queue, stack, vector) to indicate potential panics in certain operations, enhancing user awareness of edge cases.

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coderabbitai bot commented Apr 2, 2024

Walkthrough

The recent updates across various modules focus on enhancing documentation clarity and consistency by incorporating @alert annotations. These annotations highlight potential panicking scenarios, particularly in cases of empty data structures or out-of-bounds access. By standardizing the documentation with these alerts, users can better understand the risks associated with certain operations, promoting improved usability and risk awareness.

Changes

Files Change Summary
deque/deque.mbt, vec/vec.mbt Added @alert unsafe annotations to indicate potential panics from empty structures or out-of-bounds access.
immutable_set/immutable_set.mbt Added an @alert annotation indicating potential unsafety due to panicking if the ImmutableSet is empty in specific functions.

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Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between e9ace85 and 1f27096.
Files selected for processing (1)
  • deque/deque.mbt (4 hunks)
Files skipped from review as they are similar to previous changes (1)
  • deque/deque.mbt

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Actionable comments posted: 0

Review Status

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between 91b0c05 and 1e48da3.
Files selected for processing (8)
  • deque/deque.mbt (4 hunks)
  • hashmap/hashmap.mbt (1 hunks)
  • immutable_set/immutable_set.mbt (4 hunks)
  • list/list.mbt (8 hunks)
  • priority_queue/priority_queue.mbt (1 hunks)
  • queue/queue.mbt (2 hunks)
  • stack/stack.mbt (2 hunks)
  • vec/vec.mbt (9 hunks)
Additional Context Used
Additional comments not posted (30)
priority_queue/priority_queue.mbt (1)

110-110: The addition of the @alert annotation to the pop_exn function documentation is a good practice for making the potential panic behavior explicit. This aligns well with the PR's objectives of enhancing documentation clarity and safety.

queue/queue.mbt (2)

171-171: The addition of the @alert annotation to the peek_exn function documentation is a positive change, making the potential panic behavior explicit. This enhances documentation clarity and safety.


216-216: Adding the @alert annotation to the pop_exn function documentation is a good practice, clearly indicating the potential for panic if the queue is empty. This contributes to the overall goal of enhancing documentation for safety.

hashmap/hashmap.mbt (1)

43-43: The addition of the @alert annotation to the set function documentation is a good practice for making the potential panic behavior explicit when the hash map is full. This aligns well with the PR's objectives of enhancing documentation clarity and safety.

deque/deque.mbt (3)

186-186: The addition of the @alert annotation to the pop_front_exn function documentation is a positive change, making the potential panic behavior explicit. This enhances documentation clarity and safety.


202-202: Adding the @alert annotation to the pop_back_exn function documentation is a good practice, clearly indicating the potential for panic if the deque is empty. This contributes to the overall goal of enhancing documentation for safety.


274-274: The addition of the @alert annotation to the op_get method documentation is an excellent way to make the potential for panic explicit when the index is out of bounds. This aligns with the PR's objectives of enhancing documentation clarity and safety.

stack/stack.mbt (2)

280-280: The addition of the @alert unsafe annotation to the pop_exn function is a good practice as it clearly documents the potential for a panic if the stack is empty. This enhances code safety and developer awareness.


392-392: Similarly, the @alert unsafe annotation on the peek_exn function effectively communicates the risk of a panic when attempting to peek at an empty stack. This is a valuable addition to the documentation.

list/list.mbt (8)

250-250: The @alert unsafe annotation on the head function clearly indicates the risk of a panic when the list is empty. This is a crucial documentation update for enhancing code safety.


295-295: Adding the @alert unsafe annotation to the last function is a good practice, as it warns developers about the potential for a panic if the list is empty. This improves code documentation and safety.


402-402: The @alert unsafe annotation on the zip function is important for indicating the risk of a panic when the two lists have different lengths. This enhances the clarity of potential issues for developers.


436-436: The addition of the @alert unsafe annotation to the nth function is beneficial for documenting the potential for a panic if the index is out of bounds. This is a valuable update for code safety.


585-585: The @alert unsafe annotation on the maximum function effectively communicates the risk of a panic when the list is empty. This documentation update is crucial for developer awareness.


607-607: Similarly, the @alert unsafe annotation on the minimum function clearly indicates the potential for a panic if the list is empty. This is an important documentation enhancement.


852-852: The @alert unsafe annotation added to the find function is a good practice, as it warns developers about the risk of a panic if no element satisfies the provided condition. This improves code documentation.


906-906: Finally, the @alert unsafe annotation on the findi function clearly documents the potential for a panic if no element satisfies the condition with the given index. This is a valuable update for enhancing code safety.

immutable_set/immutable_set.mbt (4)

89-89: The addition of the @alert annotation for remove_min is appropriate and clearly communicates the potential for a panic if the ImmutableSet is empty. This enhances the documentation's clarity and safety awareness.


180-180: The @alert annotation for the min function is correctly added and effectively warns users about the unsafe behavior when the ImmutableSet is empty. This is a good practice for improving code safety and documentation.


213-213: Adding the @alert annotation to the max function is a good decision. It successfully alerts users to the potential panic when the ImmutableSet is empty, aligning with the PR's objectives to enhance documentation and safety.


572-572: The @alert annotation for the find function is well-placed and informative, warning users about the potential panic if the value is not found in the ImmutableSet. This addition is consistent with the PR's goal of improving documentation and developer awareness of unsafe operations.

vec/vec.mbt (9)

112-112: The addition of the @alert annotation for op_get is a good practice for indicating potential panics due to out-of-bounds access. This enhances code safety and developer awareness.


131-131: The @alert annotation for op_set follows the same rationale as op_get, clearly documenting the risk of panicking when the index is out of bounds. This consistency in documentation is beneficial.


202-202: Adding an @alert annotation to pop_exn to indicate it can panic if the vector is empty is a valuable update. It's important for developers to be aware of such conditions to avoid runtime errors.


254-254: The @alert annotation for drain effectively communicates the risk of panicking due to invalid index ranges. This explicit documentation of unsafe behavior is crucial for maintaining robust code.


529-529: The @alert annotation for split_at is correctly added to warn about the potential panic when the index is out of bounds. This is another example of improving code safety through documentation.


724-724: The @alert annotation for swap is essential for indicating the risk of panicking due to invalid indices. This kind of documentation helps prevent errors by making the potential risks clear.


754-754: Including an @alert annotation for remove to document the panic condition when the index is out of bounds is a prudent choice. It enhances the clarity and safety of the code.


807-807: The @alert annotation for resize is important for indicating that the function can panic if a negative new length is provided. This helps in avoiding unintended misuse of the function.


838-838: The addition of the @alert annotation for insert to document the potential for panicking with an out-of-bounds index is a good practice. It ensures that the documentation accurately reflects the function's behavior.

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Yoorkin commented Apr 2, 2024

Alerts category (identifier after @alert ) can be arbitrarily defined using the pattern@alert [A-Za-z0-9_]+ "message". It allows to control which alerts are enabled, and which ones are turned into errors. Currently it can be configured by passing -alert +category1-category2 flag to compiler, and will be supported in moon.mod.json or moon.pkg.json in future. So I suggest to use more fine-grained categories instead of a single unsafe for those function. Thoughts?

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Yoorkin commented Apr 2, 2024

For some scenarios, we can use the alert message to provide useful suggestions:

/// @alert unsafe "operation is unsafe, use operation_opt instead. " 
pub fn operation() -> Int

pub fn operation_opt() -> Option[Int]

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CAIMEOX commented Apr 2, 2024

Alerts category (identifier after @alert ) can be arbitrarily defined using the pattern@alert [A-Za-z0-9_]+ "message". It allows to control which alerts are enabled, and which ones are turned into errors. Currently it can be configured by passing -alert +category1-category2 flag to compiler, and will be supported in moon.mod.json or moon.pkg.json in future. So I suggest to use more fine-grained categories instead of a single unsafe for those function. Thoughts?

Good idea. So we first need to classify various error types. The situations that may cause panic now include index overflow, empty structure, full structure, and that no elements satisfies some predicate. But some cases I have difficulty finding shorter word/phrase to summarize. Should we open an issue/discussion?

Also I found that some functions should not have panic behavior, I will consider modifying them in other pull request.

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Yoorkin commented Apr 3, 2024

per discussion with @bobzhang, the compiler should turn off unsafe alerts by default, since they are annoying and there is currently no way to configure it for moonbitlang/core. Open an issue/discussion is welcome. I think we can merge this PR and make improvements later.

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Actionable comments posted: 0

Review Status

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between 1e48da3 and ee6bc00.
Files selected for processing (1)
  • deque/deque.mbt (4 hunks)
Files skipped from review as they are similar to previous changes (1)
  • deque/deque.mbt

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codecov bot commented Apr 3, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.45%. Comparing base (4c7b703) to head (e9ace85).

Additional details and impacted files
@@           Coverage Diff           @@
##             main     #186   +/-   ##
=======================================
  Coverage   80.45%   80.45%           
=======================================
  Files          45       45           
  Lines        2047     2047           
=======================================
  Hits         1647     1647           
  Misses        400      400           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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Actionable comments posted: 0

Review Status

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between ee6bc00 and b5e9e06.
Files selected for processing (1)
  • list/list.mbt (8 hunks)
Files skipped from review as they are similar to previous changes (1)
  • list/list.mbt

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CAIMEOX commented Apr 3, 2024

per discussion with @bobzhang, the compiler should turn off unsafe alerts by default, since they are annoying and there is currently no way to configure it for moonbitlang/core. Open an issue/discussion is welcome. I think we can merge this PR and make improvements later.

I updated the discussion in #180

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Actionable comments posted: 0

Review Status

Configuration used: CodeRabbit UI

Commits Files that changed from the base of the PR and between b5e9e06 and e9ace85.
Files selected for processing (2)
  • immutable_set/immutable_set.mbt (3 hunks)
  • vec/vec.mbt (9 hunks)
Files skipped from review as they are similar to previous changes (2)
  • immutable_set/immutable_set.mbt
  • vec/vec.mbt

@Yoorkin Yoorkin merged commit d3ce210 into moonbitlang:main Apr 9, 2024
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