From 55a4f1fc869e41aca748c63d3018f0448b1606e0 Mon Sep 17 00:00:00 2001 From: pack Date: Sun, 9 Aug 2026 10:37:07 +0000 Subject: first commit --- .../readable-stream/lib/internal/streams/from.js | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 node_modules/readable-stream/lib/internal/streams/from.js (limited to 'node_modules/readable-stream/lib/internal/streams/from.js') diff --git a/node_modules/readable-stream/lib/internal/streams/from.js b/node_modules/readable-stream/lib/internal/streams/from.js new file mode 100644 index 0000000..0a34ee9 --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/from.js @@ -0,0 +1,52 @@ +'use strict'; + +function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } } +function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; } +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; } +function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; } +function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } +function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); } +function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); } +var ERR_INVALID_ARG_TYPE = require('../../../errors').codes.ERR_INVALID_ARG_TYPE; +function from(Readable, iterable, opts) { + var iterator; + if (iterable && typeof iterable.next === 'function') { + iterator = iterable; + } else if (iterable && iterable[Symbol.asyncIterator]) iterator = iterable[Symbol.asyncIterator]();else if (iterable && iterable[Symbol.iterator]) iterator = iterable[Symbol.iterator]();else throw new ERR_INVALID_ARG_TYPE('iterable', ['Iterable'], iterable); + var readable = new Readable(_objectSpread({ + objectMode: true + }, opts)); + // Reading boolean to protect against _read + // being called before last iteration completion. + var reading = false; + readable._read = function () { + if (!reading) { + reading = true; + next(); + } + }; + function next() { + return _next2.apply(this, arguments); + } + function _next2() { + _next2 = _asyncToGenerator(function* () { + try { + var _yield$iterator$next = yield iterator.next(), + value = _yield$iterator$next.value, + done = _yield$iterator$next.done; + if (done) { + readable.push(null); + } else if (readable.push(yield value)) { + next(); + } else { + reading = false; + } + } catch (err) { + readable.destroy(err); + } + }); + return _next2.apply(this, arguments); + } + return readable; +} +module.exports = from; -- cgit v1.2.3