blob: 548e3ee4b66baca2b37ab46ac06a6db52323da9d (
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'use strict';
var isPlainObject = require('./is-plain-object')
, value = require('./valid-value')
, keys = Object.keys
, copy;
copy = function (source) {
var target = {};
this[0].push(source);
this[1].push(target);
keys(source).forEach(function (key) {
var index;
if (!isPlainObject(source[key])) {
target[key] = source[key];
return;
}
index = this[0].indexOf(source[key]);
if (index === -1) target[key] = copy.call(this, source[key]);
else target[key] = this[1][index];
}, this);
return target;
};
module.exports = function (source) {
var obj = Object(value(source));
if (obj !== source) return obj;
return copy.call([[], []], obj);
};
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