Function parseStacktrace

packages/utils/src/source-map.ts:229–297

(
  stack: string,
  options: StackTraceParserOptions = {},
)

}

export function parseStacktrace(
  stack: string,
  options: StackTraceParserOptions = {},
): ParsedStack[] {
  const { ignoreStackEntries = stackIgnorePatterns } = options
  let stacks = !CHROME_IE_STACK_REGEXP.test(stack)
    ? parseFFOrSafariStackTrace(stack)
    : parseV8Stacktrace(stack)

  // remove vi.defineHelper's internal stacks
  const helperIndex = stacks.findLastIndex(s =>
    // this covers cases such as
    //   "__VITEST_HELPER__"
    //   "__VITEST_HELPER__ [as <object method name>]"
    //   "async*__VITEST_HELPER__" (firefox)
    //   "async __VITEST_HELPER__" (webkit)
    s.method.includes('__VITEST_HELPER__'),
  )
  if (helperIndex >= 0) {
    stacks = stacks.slice(helperIndex + 1)
  }

  return stacks.map((stack) => {
    if (options.getUrlId) {
      stack.file = options.getUrlId(stack.file)
    }

    const map = options.getSourceMap?.(stack.file) as
      | SourceMapLike
      | null
      | undefined
    if (!map || typeof map !== 'object' || !map.version) {
      return shouldFilter(ignoreStackEntries, stack.file) ? null : stack
    }

    const traceMap = new DecodedMap(map, stack.file)
    if (stack.line <= 0 || stack.column <= 0) {
      return stack
    }
    const position = getOriginalPosition(traceMap, {
      line: stack.line,
      // stacktrace's column is 1-indexed, but sourcemap's one is 0-indexed
      column: stack.column - 1,
    })
    if (!position) {
      return stack
    }

    const { line, column, source, name } = position
    let file = source || stack.file
    if (/\/\w:\//.test(file)) {
      file = file.slice(1)
    }

    if (shouldFilter(ignoreStackEntries, file)) {
      return null
    }