Stricter deserialization of numeric values

[oguzhanunlu]

CirceJsonDeserializer.deserialize uses JsonBigDecimal in all numeric cases.

In my use case, it'd be nice to have JsonLong instead of JsonBigDecimal when the value can fit into Long range (-9223372036854775808 - 9223372036854775807).

A flag/configuration field could also be introduced to specify whether deserialization should pick strictest type or vice versa.

[travisbrown]

This sounds like a reasonable optimization, but I don't see any reason for it to be configurable, since users should never rely on the JsonNumber representation.

[oguzhanunlu]

Thanks for the quick reply @travisbrown !

Without this optimization, users need to check whether the value of JsonBigDecimal could fit into a long or not at each downstream app, if their case depends on type check, e.g. json schema validation

Configurability was a side idea, I don't have strong arguments there