[FEATURE REQUEST] ✨ use a `BigInt` polyfill for Lynx support

[gauthieramano]

Context

Currently, Lynx doesn't support Convex because its JavaScript Engine (PrimJS) doesn't support BigInt for tricky reasons as we can read here:

• https://github.com/lynx-family/lynx/issues/941
• https://github.com/lynx-family/primjs/issues/37

Request

So, can you consider using a Polyfill for BigInt? (JSBI's one seems to be a proper one)

Implementation

For instance, this:

// The sign bit is the most significant bit (bit 63)
const v1Sign = (v1Bits & 0x8000000000000000n) !== 0n;

would look like this then:

// outside of the function(s)
const BIT_0 = JSBI.BigInt(0);
const BIT_63 = JSBI.BigInt("0x8000000000000000");

and

// The sign bit is the most significant bit (bit 63)
const v1Sign = JSBI.notEqual(JSBI.bitwiseAnd(v1Bits, BIT_63), BIT_0);

Note

I don't know if there will be extra steps before Lynx fully supports Convex (I hope not), but it seems to be a major (and simple) one.

For instance, I have in mind a potential WebSocket issue, but it seems to be quick & easy to fix:

• https://github.com/lynx-family/lynx/issues/951