[rozzilla]

Speed up operation ID generation for large API specifications by replacing array-based operation-ID tracking with a Set for internal bulk generation, while keeping array support for existing callers. An internal local benchmark improved from 32.36 ms to 7.88 ms.

You can reproduce the comparison from the repository root with the current code:

node --input-type=module -e '
import { performance } from "node:perf_hooks"
import { generateOperationId } from "./packages/massimo/index.js"

function runBatch (makeAccumulator) {
  const all = makeAccumulator()
  for (let index = 0; index < 5000; index++) {
    generateOperationId(`/items/${index}`, "get", { operationId: `getItem${index}` }, all)
  }
}

function measure (makeAccumulator) {
  runBatch(makeAccumulator)
  const start = performance.now()
  for (let run = 0; run < 3; run++) runBatch(makeAccumulator)
  return ((performance.now() - start) / 3).toFixed(2)
}

console.log(`Array: ${measure(() => [])} ms`)
console.log(`Set:   ${measure(() => new Set())} ms`)
'

[mcollina]

lgtm