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Actionable comments posted: 1
🧹 Outside diff range and nitpick comments (2)
src/currency/mod.rs (1)
9-9: Add documentation for the decimal_places method.Consider adding documentation that explains:
- The purpose of this method
- Expected return values for different currency types
- Any constraints or validation rules
Example documentation:
+ /// Returns the number of decimal places for this currency. + /// + /// For example: + /// - Bitcoin (BTC): 8 decimal places + /// - US Dollar (USD): 2 decimal places fn decimal_places(&self) -> u8;tests/int_tests.rs (1)
84-86: LGTM! Consider adding more edge cases.The test case correctly validates complex thousand-separated float inputs with the updated BITS unit.
Consider adding test cases for:
- Different thousand separator combinations (e.g., "1,000'000.25")
- Numbers with trailing zeros after decimal point
- Maximum precision boundary cases
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (6)
- src/currency/btc.rs (1 hunks)
- src/currency/fiat.rs (1 hunks)
- src/currency/mod.rs (1 hunks)
- src/main.rs (1 hunks)
- src/print.rs (1 hunks)
- tests/int_tests.rs (2 hunks)
🔇 Additional comments (7)
src/currency/mod.rs (1)
10-13:⚠️ Potential issueConsider adding input validation and handling edge cases.
The current implementation might have issues with:
- Floating-point precision errors
- Potential overflow for large values
- Special f64 values (NaN, Infinity)
- Performance impact of repeated
powicallsConsider this improved implementation:
fn round_value(&self, value: f64) -> f64 { + // Handle special cases + if !value.is_finite() { + return value; + } + + // Cache the factor for better performance if this is called frequently + let decimal_places = self.decimal_places(); + if decimal_places == 0 { + return value.round(); + } + let factor = 10_f64.powi(self.decimal_places().into()); - (value * factor).round() / factor + + // Check for potential overflow + let product = value * factor; + if !product.is_finite() { + return value; + } + + product.round() / factor }Let's verify the usage of this method across the codebase:
src/print.rs (2)
20-21: LGTM! The rounding implementation looks correct.The code appropriately handles both integer and non-integer cases, using currency-specific rounding rules when needed.
19-22: 🛠️ Refactor suggestionConsider adding error handling for the round_value call.
Since
round_valueis a trait method that could potentially fail (e.g., if the value is outside the valid range for the currency), consider adding error handling to gracefully handle any potential failures.Let's check if
round_valuecan return errors:If
round_valuecan fail, consider updating the code to handle errors:if integer { output_value = output_value.round(); } else { - output_value = currency.round_value(output_value); + output_value = currency.round_value(output_value) + .unwrap_or_else(|e| { + eprintln!("Warning: Failed to round value: {}", e); + output_value + }); }src/main.rs (1)
24-25: LGTM! Consider adding error handling for round_value.The logic for handling integer and non-integer cases is clear and well-structured. However, since
round_valueis a trait method that could be implemented differently for various currencies, it would be prudent to handle potential errors.Let's verify the implementation of
round_valueacross different currency types:Consider wrapping the
round_valuecall in a Result to handle potential errors:} else { - output_value = cli_input.output_currencies[0].round_value(output_value); + output_value = cli_input.output_currencies[0] + .round_value(output_value) + .unwrap_or_else(|e| { + eprintln!("Error rounding value: {}", e.to_string().yellow()); + output_value + }); }src/currency/fiat.rs (2)
53-54: LGTM: Clean method signature and implementation approachThe implementation follows Rust idioms with a clear method signature and appropriate return type.
55-76: Add documentation for currency groupingsWhile the implementation is correct, consider adding a doc comment explaining the grouping criteria and referencing the ISO 4217 standard.
fn decimal_places(&self) -> u8 { + // Group currencies according to ISO 4217 standard: + // - 2 decimal places: Most major currencies + // - 0 decimal places: JPY, HUF, and other zero-decimal currencies match self {Let's verify the decimal places against ISO 4217 standards:
✅ Verification successful
Let me gather more information about the currency implementation to verify the decimal places.
Let me search for any test cases that specifically validate the decimal places implementation.
Based on the gathered information from the executed scripts, I can now provide the final response:
Decimal place assignments are correctly implemented
The implementation aligns with standard currency decimal places:
- The 2-decimal place group includes major currencies (USD, EUR, GBP, etc.)
- The 0-decimal place group correctly includes JPY, HUF, CLP, ISK, and KRW
- The implementation is part of a well-structured Currency trait with proper rounding support
The suggested documentation improvement would be beneficial but not critical, as the code is self-documenting through its clear grouping pattern.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Search for any existing currency-related documentation or tests # that might contain ISO standard references # Look for currency-related documentation rg -g '!target' -g '!*.lock' -i "ISO.?4217|currency.?standard" # Look for test files that might validate currency formatting fd -e rs test | xargs rg "decimal|format.*currency"Length of output: 243
Script:
#!/bin/bash # Look for currency-related tests and implementations rg -g '*.rs' "fn decimal_places|test.*currency" -B2 -A5 # Look for any currency formatting or validation logic rg -g '*.rs' "format.*currency|validate.*currency" -B2 -A5 # Search for currency enum definition and documentation ast-grep --pattern 'enum Fiat { $$$ }'Length of output: 2040
Script:
#!/bin/bash # Look for test modules and currency-related test cases rg -g '*.rs' "#\[test\].*currency|test.*decimal" -B2 -A10 # Search for any currency value formatting tests ast-grep --pattern 'fn test_$_($$$) { $$$ decimal$$$ }'Length of output: 121
tests/int_tests.rs (1)
96-149: LGTM! Comprehensive test coverage for rounding behavior.The test cases effectively validate:
- Fractional satoshi rounding
- Bitcoin decimal precision
- Fiat currency decimal places (2 for USD, 0 for JPY)
Let's verify the rounding rules match the Currency trait implementation:
Consider adding:
- Test cases for edge values (e.g., values near rounding boundaries)
- More assertions for the exact string representation of USD/JPY outputs
- Constants for expected decimal places instead of hardcoding the validation logic
✅ Verification successful
Let me try a different pattern to find the currency implementations since the previous one didn't yield results.
Let me search for the specific Fiat currency decimal places implementation since we see it's using a Fiat struct.
Now I have enough information to verify the rounding rules.
✅ Test cases correctly validate the Currency trait's rounding behavior
The test cases align perfectly with the codebase implementation:
- JPY has 0 decimal places (confirmed in
src/currency/fiat.rs:Fiat::JPY => 0)- The generic
round_valueimplementation in the Currency trait (insrc/currency/mod.rs) handles the rounding using the currency's decimal places- The test's epsilon comparison for USD and integer assertion for JPY match these implementations
The rounding behavior is consistently implemented across:
- The Currency trait's default
round_valuemethod- The Fiat currency decimal place specifications
- The test assertions
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify decimal places in Currency implementations match test assumptions # Test: Search for decimal_places implementations echo "Searching for decimal_places implementations..." ast-grep --pattern 'fn decimal_places($$$) -> u32 { $$ }' # Test: Search for round_value implementations echo "Searching for round_value implementations..." ast-grep --pattern 'fn round_value($$$) { $$ }'Length of output: 313
Script:
#!/bin/bash # Search for Currency trait implementation and decimal places echo "Searching for Currency trait and implementations..." rg -A 5 "impl Currency for" # Search specifically for USD and JPY implementations echo "Searching for USD and JPY specific implementations..." rg -A 10 "impl Currency for (USD|JPY)" # Search for the Currency trait definition echo "Searching for Currency trait definition..." rg -A 10 "trait Currency"Length of output: 1459
Script:
#!/bin/bash # Search for Fiat decimal_places implementation and currency types echo "Searching for Fiat decimal_places implementation..." rg -A 10 "fn decimal_places.*self.*Fiat" # Search for USD and JPY type definitions echo "Searching for USD and JPY definitions..." rg -B 5 -A 5 "struct (USD|JPY)" # Search for Fiat currency type declarations echo "Searching for Fiat currency declarations..." rg "(USD|JPY).*Fiat"Length of output: 509
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Fixes #146 |
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Summary by CodeRabbit
Release Notes
New Features
decimal_placesmethod for both Bitcoin and Fiat currencies, providing detailed decimal precision information.round_valuemethod to ensure accurate rounding of currency values based on decimal places.Bug Fixes
Tests