Ratio.quantize() shouldn't increase precision unnecessarily #9926
+53
−25
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Description
Ratios are designed to hold fractions as ratios with arbitrary length denominators. A few operations (multiplication) can cause the denominators to grow rapidly. To allow holders of growing ratios to manage this, we provide a method
quantize()
, which returns a ratio that approximates the original value, but with a smaller denominator.The current implementation uses the provided denominator even if it is larger. This doesn't gain anything, and can lose precision unnecessarily
Security Considerations
No security implications.
Scaling Considerations
The quantize() method is used to limit the size of very large BigInts. This improvement only makes that better.
Documentation Considerations
No need for changes. The current doc does say "Make an equivalant ratio with a new denominator", even though the result is only an approximation.
Testing Considerations
Added new tests.
Upgrade Considerations
No hurry to get this included in any particular contract upgrade.