Use Case

As a BSON user
I want Long.fromBigInt to be performant
So that I can efficiently translate to the Long type

User Impact

• Any user using Long.fromBigInt

Dependencies

• None

Unknowns

• Is there a performance difference between bigint literals and BigInt(number)

Acceptance Criteria

Implementation Requirements

• Remove stringifying to translate BigInt to Long
• Replace with bitwise operations that separate the high and low 32 bits and call the Long constructor.

Testing Requirements

• Existing tests
• Manually check performance improvements

Documentation Requirements

• None

Follow Up Requirements

• None