'use strict'

Error.stackTraceLimit = Infinity;
try {
  throw new Error();
} catch (err) {
  process.nextTick(() => {
    Error.stackTraceLimit = 2;
    try {
      throw new Error();
    } catch (innerErr) {
      const filterNextTick = innerErr.stack.split('\n')[2].match(/ \(.+?:/g)[0].slice(2);
      const stacks = err.stack
        .match(/ \(.+?:/g)
        .map((e) => e.slice(2))
        // Filter Everything that has nothing to do with Node core and next
        // ticks.
        .filter((e) => e[0] !== '/' && e[0] !== '\\' && e !== filterNextTick);
      let regExpStr = '';
      let separator = '';
      for (const frame of new Set(stacks)) {
        regExpStr += `${separator} ${frame.replace(/\\/g, '\\\\').replace(/\./g, '\\.')}\\d+:\\d+`;
        separator = '|';
      }
      regExpStr += '$';
      console.log(regExpStr);
    }
  });
}