JavaScript @trace decorator

trace.js

function trace(target, name, descriptor) {
  if (!DEBUG) {
    return descriptor
  }

  const original = descriptor.value

  const traced = function(...args) {
    console.trace(`${this.constructor.name}#${name}`, args)
    return original.call(this, ...args)
  }

  descriptor.value = traced

  return descriptor
}