1exports = module.exports = stringify 2exports.getSerialize = serializer 3 4function stringify(obj, replacer, spaces, cycleReplacer) { 5 return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces) 6} 7 8function serializer(replacer, cycleReplacer) { 9 var stack = [], keys = [] 10 11 if (cycleReplacer == null) cycleReplacer = function(key, value) { 12 if (stack[0] === value) return "[Circular ~]" 13 return "[Circular ~." + keys.slice(0, stack.indexOf(value)).join(".") + "]" 14 } 15 16 return function(key, value) { 17 if (stack.length > 0) { 18 var thisPos = stack.indexOf(this) 19 ~thisPos ? stack.splice(thisPos + 1) : stack.push(this) 20 ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key) 21 if (~stack.indexOf(value)) value = cycleReplacer.call(this, key, value) 22 } 23 else stack.push(value) 24 25 return replacer == null ? value : replacer.call(this, key, value) 26 } 27} 28