Ed Hennis 692070dbf1 Add semi-automatic rounding of STNumbers based on Asset types ...

- Create a new SField metadata enum, sMD_NeedsAsset, which indicates
  the field should be associated with an Asset so it can be rounded.
- Add a new STTakesAsset intermediate class to handle the Asset
  association to a derived ST class. Currently only used in STNumber,
  but could be used by other types in the future.
- Add "associateAsset" which takes an SLE and an Asset, finds the
  sMD_NeedsAsset fields, and associates the Asset to them. In the case
  of STNumber, that both stores the Asset, and rounds the value
  immediately.
- Transactors only need to add a call to associateAsset _after_ all of
  the STNumbers have been set. Unfortunately, the inner workings of
  STObject do not do the association correctly with uninitialized
  fields.
- When serializing an STNumber that has an Asset, round it before
  serializing.
- Add an override of roundToAsset, which rounds a Number value in place
  to an Asset, but without any additional scale.
- Update and fix a bunch of Loan-related tests to accommodate the
  expanded Number class.
- (Not all tests are fixed yet.)

2025-12-08 18:38:30 -05:00

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xrpl

Add semi-automatic rounding of STNumbers based on Asset types

2025-12-08 18:38:30 -05:00