mirror of
https://github.com/Doodle3D/Doodle3D-API
synced 2024-06-27 14:11:21 +02:00
69 lines
1.9 KiB
JavaScript
69 lines
1.9 KiB
JavaScript
/* */
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'use strict';
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var $ = require("./$"),
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ctx = require("./$.ctx"),
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safe = require("./$.uid").safe,
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$def = require("./$.def"),
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$iter = require("./$.iter"),
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forOf = require("./$.for-of"),
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ENTRIES = safe('entries'),
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FN = safe('fn'),
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ITER = safe('iter'),
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call = require("./$.iter-call"),
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getIterator = $iter.get,
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setIterator = $iter.set,
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createIterator = $iter.create;
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function $for(iterable, entries) {
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if (!(this instanceof $for))
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return new $for(iterable, entries);
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this[ITER] = getIterator(iterable);
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this[ENTRIES] = !!entries;
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}
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createIterator($for, 'Wrapper', function() {
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return this[ITER].next();
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});
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var $forProto = $for.prototype;
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setIterator($forProto, function() {
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return this[ITER];
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});
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function createChainIterator(next) {
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function Iterator(iter, fn, that) {
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this[ITER] = getIterator(iter);
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this[ENTRIES] = iter[ENTRIES];
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this[FN] = ctx(fn, that, iter[ENTRIES] ? 2 : 1);
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}
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createIterator(Iterator, 'Chain', next, $forProto);
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setIterator(Iterator.prototype, $.that);
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return Iterator;
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}
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var MapIter = createChainIterator(function() {
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var step = this[ITER].next();
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return step.done ? step : $iter.step(0, call(this[ITER], this[FN], step.value, this[ENTRIES]));
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});
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var FilterIter = createChainIterator(function() {
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for (; ; ) {
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var step = this[ITER].next();
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if (step.done || call(this[ITER], this[FN], step.value, this[ENTRIES]))
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return step;
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}
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});
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require("./$.mix")($forProto, {
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of: function(fn, that) {
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forOf(this, this[ENTRIES], fn, that);
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},
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array: function(fn, that) {
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var result = [];
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forOf(fn != undefined ? this.map(fn, that) : this, false, result.push, result);
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return result;
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},
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filter: function(fn, that) {
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return new FilterIter(this, fn, that);
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},
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map: function(fn, that) {
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return new MapIter(this, fn, that);
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}
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});
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$for.isIterable = $iter.is;
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$for.getIterator = getIterator;
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$def($def.G + $def.F, {$for: $for});
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