var constant = require('./constant'),
    defineProperty = require('./_defineProperty'),
    getWrapDetails = require('./_getWrapDetails'),
    identity = require('./identity'),
    insertWrapDetails = require('./_insertWrapDetails'),
    updateWrapDetails = require('./_updateWrapDetails');

/**
 * Sets the `toString` method of `wrapper` to mimic the source of `reference`
 * with wrapper details in a comment at the top of the source body.
 *
 * @private
 * @param {Function} wrapper The function to modify.
 * @param {Function} reference The reference function.
 * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
 * @returns {Function} Returns `wrapper`.
 */
var setWrapToString = !defineProperty ? identity : function(wrapper, reference, bitmask) {
  var source = (reference + '');
  return defineProperty(wrapper, 'toString', {
    'configurable': true,
    'enumerable': false,
    'value': constant(insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)))
  });
};

module.exports = setWrapToString;