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