aaac7fed
 liuqimichale
add
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exports = module.exports = stringify
exports.getSerialize = serializer
function stringify(obj, replacer, spaces, cycleReplacer) {
return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces)
}
function serializer(replacer, cycleReplacer) {
var stack = [], keys = []
if (cycleReplacer == null) cycleReplacer = function(key, value) {
if (stack[0] === value) return "[Circular ~]"
return "[Circular ~." + keys.slice(0, stack.indexOf(value)).join(".") + "]"
}
return function(key, value) {
if (stack.length > 0) {
var thisPos = stack.indexOf(this)
~thisPos ? stack.splice(thisPos + 1) : stack.push(this)
~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key)
if (~stack.indexOf(value)) value = cycleReplacer.call(this, key, value)
}
else stack.push(value)
return replacer == null ? value : replacer.call(this, key, value)
}
}
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