1let _monorepoPrefix: string
2const getMonorepoPrefix = () => _monorepoPrefix ||= import.meta.url.replace(/pt0\/sharedF\/throwErrorF\/sharedErrF\.mts$/, '')
3
4export type DebugH = Record<string, unknown>
5
6export class PtErr extends Error {
7  uniqDebugH: DebugH | undefined
8  dumpDebugH: DebugH | undefined
9  throwLocation: string | undefined
10
11  constructor(message: string, uniqDebugH?: DebugH, dumpDebugH?: DebugH) {
12    super(message)
13    // non-enumerable to avoid duplicate printing by Node's error inspector
14    Object.defineProperty(this, 'uniqDebugH', { value: uniqDebugH, enumerable: false, writable: true })
15    Object.defineProperty(this, 'dumpDebugH', { value: { ...dumpDebugH }, enumerable: false, writable: true })
16    void this.stack
17  }
18}
19
20const origPrepareStackTrace = Error.prepareStackTrace
21Error.prepareStackTrace = (err, callSites) => {
22  if (!(err instanceof PtErr)) {
23    return origPrepareStackTrace ? origPrepareStackTrace(err, callSites) : `${err.name}: ${err.message}\n` + callSites.map(s => `    at ${s}`).join('\n')
24  }
25  const monorepoPrefix = getMonorepoPrefix()
26  const isInternalFrame = (shortPath: string) => shortPath.includes('/throwErrorF/')
27  const callerSite = callSites.find(site => {
28    const fileName = site.getFileName() || ''
29    if (!fileName.startsWith(monorepoPrefix) || fileName.includes('[eval')) return false
30    return !isInternalFrame(fileName.replace(monorepoPrefix, ''))
31  })
32  if (callerSite) {
33    const shortPath = (callerSite.getFileName() || '').replace(monorepoPrefix, '')
34    const fnName = callerSite.getFunctionName() || '<anonymous>'
35    Object.defineProperty(err, 'throwLocation', { value: `${shortPath}:${fnName}`, enumerable: false, writable: true, configurable: true })
36  }
37  const monorepoFrames = callSites
38    .map(site => {
39      const fileName = site.getFileName() || ''
40      if (!fileName.startsWith(monorepoPrefix) || fileName.includes('[eval')) return null
41      const shortPath = fileName.replace(monorepoPrefix, '')
42      const fnName = site.getFunctionName() || '<anonymous>'
43      return `    at ${fnName} (${shortPath}:${site.getLineNumber()})`
44    })
45    .filter(Boolean) as string[]
46  const maxFrames = (err.uniqDebugH?._maxFrames as number | undefined) ?? Infinity
47  const shownFrames = monorepoFrames.slice(0, maxFrames)
48  const parts = [`PtErr: ${err.message}`, ...shownFrames]
49  const { _maxFrames, ...debugWithoutMaxFrames } = err.uniqDebugH || {}
50  if (Object.keys(debugWithoutMaxFrames).length > 0) parts.push(`  uniqDebugH: ${JSON.stringify(debugWithoutMaxFrames)}`)
51  return parts.join('\n')
52}
53
54export const throPtErr = (...props: [string, DebugH?, DebugH?]): never => {
55  throw new PtErr(...props)
56}
57