hardhat
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Hardhat is an extensible developer tool that helps smart contract developers increase productivity by reliably bringing together the tools they want.
46 lines • 2.13 kB
JavaScript
import { SOLC_DEFAULT_OPTIMIZER_RUNS } from "../constants.js";
// This doesn't need to be exact, it's used to account for the per-file
// overhead, so that many small files don't look free
const APPROXIMATE_AVERAGE_SIZE_OF_SOLIDITY_FILES = 10_000;
export function estimateCompilationJobCost(job) {
let totalChars = 0;
let fileCount = 0;
for (const file of job.dependencyGraph.getAllFiles()) {
totalChars += file.content.text.length;
fileCount += 1;
}
const settings = job.solcConfig.settings ?? {};
const viaIR = settings.viaIR === true;
const optimizerEnabled = settings.optimizer?.enabled === true;
const optimizerRuns = settings.optimizer?.runs ?? SOLC_DEFAULT_OPTIMIZER_RUNS;
const viaIRMultiplier = viaIR === true ? 6.0 : 1.0;
const optimizerMultiplier = optimizerEnabled ? 1.4 : 1.0;
// The optimizer `runs` is not the number of times that the optimizer is run.
// It represents how many times the contract will be run.
// While it has an effect in the compilation time, it's not linear nor
// dominant.
//
// We use Math.log10 and Math.min to represent that:
// - increasing runs probably has diminishing impact in cost
// - going from 1 -> 200 matters more than 200 -> 20_000
// - runs should contribute weakly compared with viaIR
const runsMultiplier = optimizerEnabled
? 1 + Math.min(0.12, Math.log10(Math.max(1, optimizerRuns)) * 0.04)
: 1.0;
const fileOverhead = APPROXIMATE_AVERAGE_SIZE_OF_SOLIDITY_FILES * fileCount;
return ((totalChars + fileOverhead) *
viaIRMultiplier *
optimizerMultiplier *
runsMultiplier);
}
/**
* Returns a new array containing the given compilation jobs sorted by their
* estimated cost in descending order. The input array is not mutated.
*/
export function sortCompilationJobsByDescendingCost(compilationJobs) {
return compilationJobs
.map((job) => ({ job, cost: estimateCompilationJobCost(job) }))
.sort((a, b) => b.cost - a.cost)
.map(({ job }) => job);
}
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