[ISSUE #13]Optimize impl From<&'static str> for CheetahString #14
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Caution Review failedThe pull request is closed. WalkthroughThe pull request modifies the Changes
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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (1)
src/cheetah_string.rs (1)
30-32: LGTM! Consider documenting performance implications.The change from
From<&'static str>toFrom<&'a str>improves flexibility by accepting string slices with any lifetime. However, this means we'll always allocate a newArc<String>instead of potentially reusing static strings.Consider adding documentation to clarify:
- The performance implications of this implementation
- The difference between this and the
from_slicemethod, as they currently do the same thing
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📒 Files selected for processing (1)
src/cheetah_string.rs(2 hunks)
🔇 Additional comments (1)
src/cheetah_string.rs (1)
30-32: Verify performance impact of removing static string optimization.
The changes remove the ability to store static strings without allocation. Let's verify the impact on the codebase.
Also applies to: 103-108
✅ Verification successful
Performance impact of removing static string optimization is minimal
Based on the codebase analysis:
- The only direct usage of static string optimization is in benchmarks (
benches/cheetah.rs) - No performance-critical paths or const/static declarations using CheetahString were found
- The main usages are in serde implementations and type conversions, which are not performance-sensitive paths
The removal of static string optimization doesn't significantly impact the codebase as:
- Most usages are dynamic string conversions through
from_string,from_slice, andfrom_bytes - The static string optimization was primarily used in benchmarking code, not production paths
- No const or static CheetahString declarations were found that would benefit from the optimization
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check for potential performance impact points
# Test 1: Look for direct string literal usage that could benefit from static optimization
echo "Searching for string literal assignments that might benefit from static optimization..."
rg --type rust "CheetahString::from\(\".*\"\)" -A 2
# Test 2: Look for existing performance-critical code that might be affected
echo "Checking for performance-critical code paths..."
rg --type rust "(#\[bench\]|#\[test\]|performance|benchmark).*CheetahString" -A 5
Length of output: 425
Script:
#!/bin/bash
# Let's try a different approach to analyze the impact
# Check for all usages of CheetahString::from and CheetahString::from_str
echo "Checking all CheetahString::from and from_str usages..."
rg --type rust "CheetahString::(from|from_str)" -B 2 -A 2
# Look for any tests or benchmarks related to CheetahString
echo "Checking for tests and benchmarks..."
rg --type rust "mod\s+tests.*CheetahString|#\[test\].*CheetahString" -B 2 -A 5
# Check for any const or static declarations using CheetahString
echo "Checking for const/static usage..."
rg --type rust "(const|static).*CheetahString" -B 1 -A 2
# Look at the implementation details of CheetahString
echo "Checking CheetahString implementation..."
rg --type rust "impl.*CheetahString" -B 1 -A 5
Length of output: 7708
close #13
Summary by CodeRabbit
New Features
CheetahStringby allowing it to accept a broader range of string slice inputs.from_slicefor creatingCheetahStringfrom string slices.Bug Fixes
Fromtrait for string slices, ensuring better compatibility.