From 3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Sun, 6 Oct 2019 21:37:45 +0200 Subject: build: Add some required modules for node --- node_modules/pseudomap/pseudomap.js | 113 ++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 node_modules/pseudomap/pseudomap.js (limited to 'node_modules/pseudomap/pseudomap.js') diff --git a/node_modules/pseudomap/pseudomap.js b/node_modules/pseudomap/pseudomap.js new file mode 100644 index 0000000..25a21d8 --- /dev/null +++ b/node_modules/pseudomap/pseudomap.js @@ -0,0 +1,113 @@ +var hasOwnProperty = Object.prototype.hasOwnProperty + +module.exports = PseudoMap + +function PseudoMap (set) { + if (!(this instanceof PseudoMap)) // whyyyyyyy + throw new TypeError("Constructor PseudoMap requires 'new'") + + this.clear() + + if (set) { + if ((set instanceof PseudoMap) || + (typeof Map === 'function' && set instanceof Map)) + set.forEach(function (value, key) { + this.set(key, value) + }, this) + else if (Array.isArray(set)) + set.forEach(function (kv) { + this.set(kv[0], kv[1]) + }, this) + else + throw new TypeError('invalid argument') + } +} + +PseudoMap.prototype.forEach = function (fn, thisp) { + thisp = thisp || this + Object.keys(this._data).forEach(function (k) { + if (k !== 'size') + fn.call(thisp, this._data[k].value, this._data[k].key) + }, this) +} + +PseudoMap.prototype.has = function (k) { + return !!find(this._data, k) +} + +PseudoMap.prototype.get = function (k) { + var res = find(this._data, k) + return res && res.value +} + +PseudoMap.prototype.set = function (k, v) { + set(this._data, k, v) +} + +PseudoMap.prototype.delete = function (k) { + var res = find(this._data, k) + if (res) { + delete this._data[res._index] + this._data.size-- + } +} + +PseudoMap.prototype.clear = function () { + var data = Object.create(null) + data.size = 0 + + Object.defineProperty(this, '_data', { + value: data, + enumerable: false, + configurable: true, + writable: false + }) +} + +Object.defineProperty(PseudoMap.prototype, 'size', { + get: function () { + return this._data.size + }, + set: function (n) {}, + enumerable: true, + configurable: true +}) + +PseudoMap.prototype.values = +PseudoMap.prototype.keys = +PseudoMap.prototype.entries = function () { + throw new Error('iterators are not implemented in this version') +} + +// Either identical, or both NaN +function same (a, b) { + return a === b || a !== a && b !== b +} + +function Entry (k, v, i) { + this.key = k + this.value = v + this._index = i +} + +function find (data, k) { + for (var i = 0, s = '_' + k, key = s; + hasOwnProperty.call(data, key); + key = s + i++) { + if (same(data[key].key, k)) + return data[key] + } +} + +function set (data, k, v) { + for (var i = 0, s = '_' + k, key = s; + hasOwnProperty.call(data, key); + key = s + i++) { + if (same(data[key].key, k)) { + data[key].value = v + return + } + } + data.size++ + data[key] = new Entry(k, v, key) +} -- cgit v1.2.3