refactor: replace unwrap() calls with proper error handling #11
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Caution Review failedThe pull request is closed. WalkthroughReplaces example/test uses of unwrap() with expect(...) in README and convert_file.rs; converts Mutex.lock().unwrap() calls to poison-tolerant patterns (unwrap_or_else(...)) in src/convert_pointcloud.rs, reduces lock lifetimes, clones shared point buffers before I/O, and slightly reorders imports/log output. No public API signature changes. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant Caller
participant Convert as convert_pointclouds
participant ER as e57_reader_mutex
participant HC as has_color_mutex
participant MC as max_cartesian_mutex
participant LP as las_points_mutex
participant Writer as LAS_Writer
Caller->>Convert: convert_pointclouds(files)
rect rgba(230,245,255,0.5)
note right of Convert: per-pointcloud processing (parallel/threads)
Convert->>ER: lock() (or into_inner on poison)
ER-->>Convert: reader guard
Convert->>HC: lock() (or into_inner on poison)
HC-->>Convert: has_color updates
Convert->>MC: lock() (or into_inner on poison)
MC-->>Convert: update max_cartesian
Convert->>LP: lock() (or into_inner on poison)
LP-->>Convert: push las_point
end
note over Convert: After all pointcloud tasks finish
Convert->>HC: lock() read has_color (poison-tolerant)
HC-->>Convert: has_color value
Convert->>MC: lock() read max_cartesian (poison-tolerant)
MC-->>Convert: max_cartesian value
Convert->>LP: lock() clone points (poison-tolerant)
LP-->>Convert: cloned Vec<LASPoint>
Convert->>Writer: create writer(has_color, max_cartesian)
Convert->>Writer: write points from cloned Vec
Writer-->>Caller: done
Estimated code review effort🎯 4 (Complex) | ⏱️ ~60 minutes Possibly related PRs
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Actionable comments posted: 0
🧹 Nitpick comments (1)
examples/stations.json (1)
1-1: Consider adding this file to .gitignoreThis appears to be an example output file that was likely generated during testing. Example output files are typically not committed to version control as they can be regenerated and may clutter the repository.
Consider adding
examples/stations.jsonto.gitignoreif this is indeed a generated output file rather than test fixture data.
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📒 Files selected for processing (4)
README.md(1 hunks)examples/stations.json(1 hunks)src/convert_file.rs(2 hunks)src/convert_pointcloud.rs(6 hunks)
🧰 Additional context used
🧬 Code graph analysis (4)
src/convert_file.rs (3)
src/las_version.rs (7)
new(11-21)from(48-53)test(61-84)test_unsupported_las_version(65-69)Error(41-41)test_invalid_las_version_major(72-76)test_invalid_las_version_minor(79-83)src/error.rs (1)
Error(2-7)src/main.rs (1)
main(24-39)
README.md (2)
src/las_version.rs (4)
Error(41-41)LasVersion(10-22)LasVersion(5-8)Error(38-38)src/main.rs (1)
main(24-39)
examples/stations.json (2)
src/stations.rs (1)
save_stations(14-43)src/lib.rs (1)
stations(19-19)
src/convert_pointcloud.rs (1)
src/get_las_writer.rs (1)
get_las_writer(21-49)
🔇 Additional comments (12)
src/convert_file.rs (3)
32-32: Good improvement usingexpect()for documentation clarityThe change from
unwrap()toexpect()with a descriptive message improves the example's educational value and aligns with Rust best practices.
84-87: Consistent error handling in testsGood job replacing
unwrap()withexpect()in test code. The descriptive error message will make test failures easier to diagnose.
93-93: LGTM! Test error handling consistency maintainedThe
expect()message is clear and consistent with the pattern used throughout the test.README.md (1)
44-44: Documentation example properly updatedThe README example correctly uses
expect()instead ofunwrap(), maintaining consistency with the library's documentation and promoting better error handling practices to users.src/convert_pointcloud.rs (8)
55-57: Excellent mutex poisoning handlingThe change from
unwrap()tounwrap_or_else(|poisoned| poisoned.into_inner())properly handles mutex poisoning. This prevents panics when a thread holding the mutex panics, allowing the program to continue with the underlying data.
80-82: Consistent poison recovery patternGood application of the same mutex poisoning recovery pattern for reading the
has_colorvalue.
139-141: Proper mutex handling in parallel contextThe poison-tolerant mutex handling is particularly important here in the parallel iteration context where thread panics are more likely to poison mutexes.
152-154: Consistent error recovery pattern maintainedThe same robust mutex handling pattern is correctly applied to the
has_color_mutexin the parallel processing path.
165-168: Thread-safe point accumulation with poison toleranceGood implementation of poison-tolerant locking for the shared point vector. This ensures data can still be accessed even if a processing thread panics.
171-173: Robust max value trackingThe mutex poisoning handling for
max_cartesian_mutexensures the maximum coordinate tracking continues even if a thread fails.
188-194: Well-structured state extraction before writer creationGood practice extracting both
max_cartesianandhas_colorvalues from their mutexes before creating the writer. This minimizes lock duration and uses consistent poison recovery.
205-209: Smart optimization: snapshot points before writingExcellent optimization! Creating a clone of the points vector and releasing the mutex before the I/O loop prevents holding the lock during potentially slow disk operations. This significantly improves concurrency.
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Summary
This PR replaces all
unwrap()calls in the codebase with proper error handling to prevent potential panics in production code.Changes
lock().unwrap()with proper error handling usingmap_err()unwrap()in test code withexpect()to provide meaningful error messagesexpect()instead ofunwrap()Benefits
unwrap()calls in production codeunwrap_usedTesting
Files Changed
src/convert_pointcloud.rs- Replaced mutex lock unwraps with proper error handlingsrc/convert_file.rs- Updated test to use expect() instead of unwrap()README.md- Updated example code to use expect()Summary by CodeRabbit
Bug Fixes
Performance
Documentation