export function stringifyWithFunctions()

in src/lib/api/inline.preboot.code.ts [201:232]

• 23 lines of code
• 6 McCabe index (conditional complexity)

export function stringifyWithFunctions(obj: Object): string {
  const FUNC_START = 'START_FUNCTION_HERE';
  const FUNC_STOP = 'STOP_FUNCTION_HERE';

  // first stringify except mark off functions with markers
  let str = JSON.stringify(obj, function(_key, value) {
    // if the value is a function, we want to wrap it with markers
    if (!!(value && value.constructor && value.call && value.apply)) {
      return FUNC_START + value.toString() + FUNC_STOP;
    } else {
      return value;
    }
  });

  // now we use the markers to replace function strings with actual functions
  let startFuncIdx = str.indexOf(FUNC_START);
  let stopFuncIdx: number;
  let fn: string;
  while (startFuncIdx >= 0) {
    stopFuncIdx = str.indexOf(FUNC_STOP);

    // pull string out
    fn = str.substring(startFuncIdx + FUNC_START.length, stopFuncIdx);
    fn = fn.replace(/\\n/g, '\n');

    str = str.substring(0, startFuncIdx - 1) + fn +
      str.substring(stopFuncIdx + FUNC_STOP.length + 1);
    startFuncIdx = str.indexOf(FUNC_START);
  }

  return str;
}