Skip to main content
Gas refunds accumulated during execution (e.g., storage clearing), capped per EIP-3529. 
import * as GasRefund from 'voltaire-effect/primitives/GasRefund'
import { Effect } from 'effect'

// Create refund
const refund = Effect.runSync(GasRefund.from(15000n))

// Capped refund (max = gasUsed / 5 per EIP-3529)
const capped = Effect.runSync(GasRefund.cappedRefund(30000n, 100000n))
// max for 100000 gas = 20000, so min(30000, 20000) = 20000n

​
Usage

const calculateNetGas = (gasUsed: bigint, accumulatedRefund: bigint) =>
  Effect.gen(function* () {
    const capped = yield* GasRefund.cappedRefund(accumulatedRefund, gasUsed)
    return gasUsed - capped
  })
Fails on negative values.