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119 lines
2.9 KiB
119 lines
2.9 KiB
self.Flatted = (function (exports) {
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'use strict';
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/*! (c) 2020 Andrea Giammarchi */
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var $parse = JSON.parse,
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$stringify = JSON.stringify;
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var keys = Object.keys;
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var Primitive = String; // it could be Number
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var primitive = 'string'; // it could be 'number'
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var ignore = {};
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var object = 'object';
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var noop = function noop(_, value) {
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return value;
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};
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var primitives = function primitives(value) {
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return value instanceof Primitive ? Primitive(value) : value;
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};
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var Primitives = function Primitives(_, value) {
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return typeof(value) === primitive ? new Primitive(value) : value;
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};
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var revive = function revive(input, parsed, output, $) {
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var lazy = [];
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for (var ke = keys(output), length = ke.length, y = 0; y < length; y++) {
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var k = ke[y];
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var value = output[k];
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if (value instanceof Primitive) {
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var tmp = input[value];
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if (typeof(tmp) === object && !parsed.has(tmp)) {
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parsed.add(tmp);
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output[k] = ignore;
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lazy.push({
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k: k,
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a: [input, parsed, tmp, $]
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});
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} else output[k] = $.call(output, k, tmp);
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} else if (output[k] !== ignore) output[k] = $.call(output, k, value);
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}
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for (var _length = lazy.length, i = 0; i < _length; i++) {
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var _lazy$i = lazy[i],
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_k = _lazy$i.k,
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a = _lazy$i.a;
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output[_k] = $.call(output, _k, revive.apply(null, a));
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}
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return output;
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};
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var set = function set(known, input, value) {
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var index = Primitive(input.push(value) - 1);
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known.set(value, index);
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return index;
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};
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var parse = function parse(text, reviver) {
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var input = $parse(text, Primitives).map(primitives);
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var value = input[0];
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var $ = reviver || noop;
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var tmp = typeof(value) === object && value ? revive(input, new Set(), value, $) : value;
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return $.call({
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'': tmp
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}, '', tmp);
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};
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var stringify = function stringify(value, replacer, space) {
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var $ = replacer && typeof(replacer) === object ? function (k, v) {
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return k === '' || -1 < replacer.indexOf(k) ? v : void 0;
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} : replacer || noop;
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var known = new Map();
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var input = [];
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var output = [];
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var i = +set(known, input, $.call({
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'': value
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}, '', value));
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var firstRun = !i;
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while (i < input.length) {
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firstRun = true;
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output[i] = $stringify(input[i++], replace, space);
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}
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return '[' + output.join(',') + ']';
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function replace(key, value) {
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if (firstRun) {
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firstRun = !firstRun;
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return value;
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}
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var after = $.call(this, key, value);
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switch (typeof(after)) {
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case object:
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if (after === null) return after;
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case primitive:
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return known.get(after) || set(known, input, after);
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}
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return after;
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}
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};
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exports.parse = parse;
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exports.stringify = stringify;
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return exports;
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}({}));
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