diff options
Diffstat (limited to 'node_modules/readable-stream/lib/internal/streams')
10 files changed, 819 insertions, 0 deletions
diff --git a/node_modules/readable-stream/lib/internal/streams/async_iterator.js b/node_modules/readable-stream/lib/internal/streams/async_iterator.js new file mode 100644 index 0000000..9fb615a --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/async_iterator.js @@ -0,0 +1,207 @@ +'use strict'; + +var _Object$setPrototypeO; + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + +var finished = require('./end-of-stream'); + +var kLastResolve = Symbol('lastResolve'); +var kLastReject = Symbol('lastReject'); +var kError = Symbol('error'); +var kEnded = Symbol('ended'); +var kLastPromise = Symbol('lastPromise'); +var kHandlePromise = Symbol('handlePromise'); +var kStream = Symbol('stream'); + +function createIterResult(value, done) { + return { + value: value, + done: done + }; +} + +function readAndResolve(iter) { + var resolve = iter[kLastResolve]; + + if (resolve !== null) { + var data = iter[kStream].read(); // we defer if data is null + // we can be expecting either 'end' or + // 'error' + + if (data !== null) { + iter[kLastPromise] = null; + iter[kLastResolve] = null; + iter[kLastReject] = null; + resolve(createIterResult(data, false)); + } + } +} + +function onReadable(iter) { + // we wait for the next tick, because it might + // emit an error with process.nextTick + process.nextTick(readAndResolve, iter); +} + +function wrapForNext(lastPromise, iter) { + return function (resolve, reject) { + lastPromise.then(function () { + if (iter[kEnded]) { + resolve(createIterResult(undefined, true)); + return; + } + + iter[kHandlePromise](resolve, reject); + }, reject); + }; +} + +var AsyncIteratorPrototype = Object.getPrototypeOf(function () {}); +var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = { + get stream() { + return this[kStream]; + }, + + next: function next() { + var _this = this; + + // if we have detected an error in the meanwhile + // reject straight away + var error = this[kError]; + + if (error !== null) { + return Promise.reject(error); + } + + if (this[kEnded]) { + return Promise.resolve(createIterResult(undefined, true)); + } + + if (this[kStream].destroyed) { + // We need to defer via nextTick because if .destroy(err) is + // called, the error will be emitted via nextTick, and + // we cannot guarantee that there is no error lingering around + // waiting to be emitted. + return new Promise(function (resolve, reject) { + process.nextTick(function () { + if (_this[kError]) { + reject(_this[kError]); + } else { + resolve(createIterResult(undefined, true)); + } + }); + }); + } // if we have multiple next() calls + // we will wait for the previous Promise to finish + // this logic is optimized to support for await loops, + // where next() is only called once at a time + + + var lastPromise = this[kLastPromise]; + var promise; + + if (lastPromise) { + promise = new Promise(wrapForNext(lastPromise, this)); + } else { + // fast path needed to support multiple this.push() + // without triggering the next() queue + var data = this[kStream].read(); + + if (data !== null) { + return Promise.resolve(createIterResult(data, false)); + } + + promise = new Promise(this[kHandlePromise]); + } + + this[kLastPromise] = promise; + return promise; + } +}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () { + return this; +}), _defineProperty(_Object$setPrototypeO, "return", function _return() { + var _this2 = this; + + // destroy(err, cb) is a private API + // we can guarantee we have that here, because we control the + // Readable class this is attached to + return new Promise(function (resolve, reject) { + _this2[kStream].destroy(null, function (err) { + if (err) { + reject(err); + return; + } + + resolve(createIterResult(undefined, true)); + }); + }); +}), _Object$setPrototypeO), AsyncIteratorPrototype); + +var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) { + var _Object$create; + + var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, { + value: stream, + writable: true + }), _defineProperty(_Object$create, kLastResolve, { + value: null, + writable: true + }), _defineProperty(_Object$create, kLastReject, { + value: null, + writable: true + }), _defineProperty(_Object$create, kError, { + value: null, + writable: true + }), _defineProperty(_Object$create, kEnded, { + value: stream._readableState.endEmitted, + writable: true + }), _defineProperty(_Object$create, kHandlePromise, { + value: function value(resolve, reject) { + var data = iterator[kStream].read(); + + if (data) { + iterator[kLastPromise] = null; + iterator[kLastResolve] = null; + iterator[kLastReject] = null; + resolve(createIterResult(data, false)); + } else { + iterator[kLastResolve] = resolve; + iterator[kLastReject] = reject; + } + }, + writable: true + }), _Object$create)); + iterator[kLastPromise] = null; + finished(stream, function (err) { + if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') { + var reject = iterator[kLastReject]; // reject if we are waiting for data in the Promise + // returned by next() and store the error + + if (reject !== null) { + iterator[kLastPromise] = null; + iterator[kLastResolve] = null; + iterator[kLastReject] = null; + reject(err); + } + + iterator[kError] = err; + return; + } + + var resolve = iterator[kLastResolve]; + + if (resolve !== null) { + iterator[kLastPromise] = null; + iterator[kLastResolve] = null; + iterator[kLastReject] = null; + resolve(createIterResult(undefined, true)); + } + + iterator[kEnded] = true; + }); + stream.on('readable', onReadable.bind(null, iterator)); + return iterator; +}; + +module.exports = createReadableStreamAsyncIterator;
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/buffer_list.js b/node_modules/readable-stream/lib/internal/streams/buffer_list.js new file mode 100644 index 0000000..cdea425 --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/buffer_list.js @@ -0,0 +1,210 @@ +'use strict'; + +function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (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 = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + +function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + +function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } + +function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; } + +var _require = require('buffer'), + Buffer = _require.Buffer; + +var _require2 = require('util'), + inspect = _require2.inspect; + +var custom = inspect && inspect.custom || 'inspect'; + +function copyBuffer(src, target, offset) { + Buffer.prototype.copy.call(src, target, offset); +} + +module.exports = +/*#__PURE__*/ +function () { + function BufferList() { + _classCallCheck(this, BufferList); + + this.head = null; + this.tail = null; + this.length = 0; + } + + _createClass(BufferList, [{ + key: "push", + value: function push(v) { + var entry = { + data: v, + next: null + }; + if (this.length > 0) this.tail.next = entry;else this.head = entry; + this.tail = entry; + ++this.length; + } + }, { + key: "unshift", + value: function unshift(v) { + var entry = { + data: v, + next: this.head + }; + if (this.length === 0) this.tail = entry; + this.head = entry; + ++this.length; + } + }, { + key: "shift", + value: function shift() { + if (this.length === 0) return; + var ret = this.head.data; + if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next; + --this.length; + return ret; + } + }, { + key: "clear", + value: function clear() { + this.head = this.tail = null; + this.length = 0; + } + }, { + key: "join", + value: function join(s) { + if (this.length === 0) return ''; + var p = this.head; + var ret = '' + p.data; + + while (p = p.next) { + ret += s + p.data; + } + + return ret; + } + }, { + key: "concat", + value: function concat(n) { + if (this.length === 0) return Buffer.alloc(0); + var ret = Buffer.allocUnsafe(n >>> 0); + var p = this.head; + var i = 0; + + while (p) { + copyBuffer(p.data, ret, i); + i += p.data.length; + p = p.next; + } + + return ret; + } // Consumes a specified amount of bytes or characters from the buffered data. + + }, { + key: "consume", + value: function consume(n, hasStrings) { + var ret; + + if (n < this.head.data.length) { + // `slice` is the same for buffers and strings. + ret = this.head.data.slice(0, n); + this.head.data = this.head.data.slice(n); + } else if (n === this.head.data.length) { + // First chunk is a perfect match. + ret = this.shift(); + } else { + // Result spans more than one buffer. + ret = hasStrings ? this._getString(n) : this._getBuffer(n); + } + + return ret; + } + }, { + key: "first", + value: function first() { + return this.head.data; + } // Consumes a specified amount of characters from the buffered data. + + }, { + key: "_getString", + value: function _getString(n) { + var p = this.head; + var c = 1; + var ret = p.data; + n -= ret.length; + + while (p = p.next) { + var str = p.data; + var nb = n > str.length ? str.length : n; + if (nb === str.length) ret += str;else ret += str.slice(0, n); + n -= nb; + + if (n === 0) { + if (nb === str.length) { + ++c; + if (p.next) this.head = p.next;else this.head = this.tail = null; + } else { + this.head = p; + p.data = str.slice(nb); + } + + break; + } + + ++c; + } + + this.length -= c; + return ret; + } // Consumes a specified amount of bytes from the buffered data. + + }, { + key: "_getBuffer", + value: function _getBuffer(n) { + var ret = Buffer.allocUnsafe(n); + var p = this.head; + var c = 1; + p.data.copy(ret); + n -= p.data.length; + + while (p = p.next) { + var buf = p.data; + var nb = n > buf.length ? buf.length : n; + buf.copy(ret, ret.length - n, 0, nb); + n -= nb; + + if (n === 0) { + if (nb === buf.length) { + ++c; + if (p.next) this.head = p.next;else this.head = this.tail = null; + } else { + this.head = p; + p.data = buf.slice(nb); + } + + break; + } + + ++c; + } + + this.length -= c; + return ret; + } // Make sure the linked list only shows the minimal necessary information. + + }, { + key: custom, + value: function value(_, options) { + return inspect(this, _objectSpread({}, options, { + // Only inspect one level. + depth: 0, + // It should not recurse. + customInspect: false + })); + } + }]); + + return BufferList; +}();
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/destroy.js b/node_modules/readable-stream/lib/internal/streams/destroy.js new file mode 100644 index 0000000..3268a16 --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/destroy.js @@ -0,0 +1,105 @@ +'use strict'; // undocumented cb() API, needed for core, not for public API + +function destroy(err, cb) { + var _this = this; + + var readableDestroyed = this._readableState && this._readableState.destroyed; + var writableDestroyed = this._writableState && this._writableState.destroyed; + + if (readableDestroyed || writableDestroyed) { + if (cb) { + cb(err); + } else if (err) { + if (!this._writableState) { + process.nextTick(emitErrorNT, this, err); + } else if (!this._writableState.errorEmitted) { + this._writableState.errorEmitted = true; + process.nextTick(emitErrorNT, this, err); + } + } + + return this; + } // we set destroyed to true before firing error callbacks in order + // to make it re-entrance safe in case destroy() is called within callbacks + + + if (this._readableState) { + this._readableState.destroyed = true; + } // if this is a duplex stream mark the writable part as destroyed as well + + + if (this._writableState) { + this._writableState.destroyed = true; + } + + this._destroy(err || null, function (err) { + if (!cb && err) { + if (!_this._writableState) { + process.nextTick(emitErrorAndCloseNT, _this, err); + } else if (!_this._writableState.errorEmitted) { + _this._writableState.errorEmitted = true; + process.nextTick(emitErrorAndCloseNT, _this, err); + } else { + process.nextTick(emitCloseNT, _this); + } + } else if (cb) { + process.nextTick(emitCloseNT, _this); + cb(err); + } else { + process.nextTick(emitCloseNT, _this); + } + }); + + return this; +} + +function emitErrorAndCloseNT(self, err) { + emitErrorNT(self, err); + emitCloseNT(self); +} + +function emitCloseNT(self) { + if (self._writableState && !self._writableState.emitClose) return; + if (self._readableState && !self._readableState.emitClose) return; + self.emit('close'); +} + +function undestroy() { + if (this._readableState) { + this._readableState.destroyed = false; + this._readableState.reading = false; + this._readableState.ended = false; + this._readableState.endEmitted = false; + } + + if (this._writableState) { + this._writableState.destroyed = false; + this._writableState.ended = false; + this._writableState.ending = false; + this._writableState.finalCalled = false; + this._writableState.prefinished = false; + this._writableState.finished = false; + this._writableState.errorEmitted = false; + } +} + +function emitErrorNT(self, err) { + self.emit('error', err); +} + +function errorOrDestroy(stream, err) { + // We have tests that rely on errors being emitted + // in the same tick, so changing this is semver major. + // For now when you opt-in to autoDestroy we allow + // the error to be emitted nextTick. In a future + // semver major update we should change the default to this. + var rState = stream._readableState; + var wState = stream._writableState; + if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err); +} + +module.exports = { + destroy: destroy, + undestroy: undestroy, + errorOrDestroy: errorOrDestroy +};
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/end-of-stream.js b/node_modules/readable-stream/lib/internal/streams/end-of-stream.js new file mode 100644 index 0000000..831f286 --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/end-of-stream.js @@ -0,0 +1,104 @@ +// Ported from https://github.com/mafintosh/end-of-stream with +// permission from the author, Mathias Buus (@mafintosh). +'use strict'; + +var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE; + +function once(callback) { + var called = false; + return function () { + if (called) return; + called = true; + + for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) { + args[_key] = arguments[_key]; + } + + callback.apply(this, args); + }; +} + +function noop() {} + +function isRequest(stream) { + return stream.setHeader && typeof stream.abort === 'function'; +} + +function eos(stream, opts, callback) { + if (typeof opts === 'function') return eos(stream, null, opts); + if (!opts) opts = {}; + callback = once(callback || noop); + var readable = opts.readable || opts.readable !== false && stream.readable; + var writable = opts.writable || opts.writable !== false && stream.writable; + + var onlegacyfinish = function onlegacyfinish() { + if (!stream.writable) onfinish(); + }; + + var writableEnded = stream._writableState && stream._writableState.finished; + + var onfinish = function onfinish() { + writable = false; + writableEnded = true; + if (!readable) callback.call(stream); + }; + + var readableEnded = stream._readableState && stream._readableState.endEmitted; + + var onend = function onend() { + readable = false; + readableEnded = true; + if (!writable) callback.call(stream); + }; + + var onerror = function onerror(err) { + callback.call(stream, err); + }; + + var onclose = function onclose() { + var err; + + if (readable && !readableEnded) { + if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE(); + return callback.call(stream, err); + } + + if (writable && !writableEnded) { + if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE(); + return callback.call(stream, err); + } + }; + + var onrequest = function onrequest() { + stream.req.on('finish', onfinish); + }; + + if (isRequest(stream)) { + stream.on('complete', onfinish); + stream.on('abort', onclose); + if (stream.req) onrequest();else stream.on('request', onrequest); + } else if (writable && !stream._writableState) { + // legacy streams + stream.on('end', onlegacyfinish); + stream.on('close', onlegacyfinish); + } + + stream.on('end', onend); + stream.on('finish', onfinish); + if (opts.error !== false) stream.on('error', onerror); + stream.on('close', onclose); + return function () { + stream.removeListener('complete', onfinish); + stream.removeListener('abort', onclose); + stream.removeListener('request', onrequest); + if (stream.req) stream.req.removeListener('finish', onfinish); + stream.removeListener('end', onlegacyfinish); + stream.removeListener('close', onlegacyfinish); + stream.removeListener('finish', onfinish); + stream.removeListener('end', onend); + stream.removeListener('error', onerror); + stream.removeListener('close', onclose); + }; +} + +module.exports = eos;
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/from-browser.js b/node_modules/readable-stream/lib/internal/streams/from-browser.js new file mode 100644 index 0000000..a4ce56f --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/from-browser.js @@ -0,0 +1,3 @@ +module.exports = function () { + throw new Error('Readable.from is not available in the browser') +}; 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..6c41284 --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/from.js @@ -0,0 +1,64 @@ +'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); if (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 = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; } + +function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } + +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 _ref = yield iterator.next(), + value = _ref.value, + done = _ref.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;
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/pipeline.js b/node_modules/readable-stream/lib/internal/streams/pipeline.js new file mode 100644 index 0000000..6589909 --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/pipeline.js @@ -0,0 +1,97 @@ +// Ported from https://github.com/mafintosh/pump with +// permission from the author, Mathias Buus (@mafintosh). +'use strict'; + +var eos; + +function once(callback) { + var called = false; + return function () { + if (called) return; + called = true; + callback.apply(void 0, arguments); + }; +} + +var _require$codes = require('../../../errors').codes, + ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS, + ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED; + +function noop(err) { + // Rethrow the error if it exists to avoid swallowing it + if (err) throw err; +} + +function isRequest(stream) { + return stream.setHeader && typeof stream.abort === 'function'; +} + +function destroyer(stream, reading, writing, callback) { + callback = once(callback); + var closed = false; + stream.on('close', function () { + closed = true; + }); + if (eos === undefined) eos = require('./end-of-stream'); + eos(stream, { + readable: reading, + writable: writing + }, function (err) { + if (err) return callback(err); + closed = true; + callback(); + }); + var destroyed = false; + return function (err) { + if (closed) return; + if (destroyed) return; + destroyed = true; // request.destroy just do .end - .abort is what we want + + if (isRequest(stream)) return stream.abort(); + if (typeof stream.destroy === 'function') return stream.destroy(); + callback(err || new ERR_STREAM_DESTROYED('pipe')); + }; +} + +function call(fn) { + fn(); +} + +function pipe(from, to) { + return from.pipe(to); +} + +function popCallback(streams) { + if (!streams.length) return noop; + if (typeof streams[streams.length - 1] !== 'function') return noop; + return streams.pop(); +} + +function pipeline() { + for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) { + streams[_key] = arguments[_key]; + } + + var callback = popCallback(streams); + if (Array.isArray(streams[0])) streams = streams[0]; + + if (streams.length < 2) { + throw new ERR_MISSING_ARGS('streams'); + } + + var error; + var destroys = streams.map(function (stream, i) { + var reading = i < streams.length - 1; + var writing = i > 0; + return destroyer(stream, reading, writing, function (err) { + if (!error) error = err; + if (err) destroys.forEach(call); + if (reading) return; + destroys.forEach(call); + callback(error); + }); + }); + return streams.reduce(pipe); +} + +module.exports = pipeline;
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/state.js b/node_modules/readable-stream/lib/internal/streams/state.js new file mode 100644 index 0000000..19887eb --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/state.js @@ -0,0 +1,27 @@ +'use strict'; + +var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE; + +function highWaterMarkFrom(options, isDuplex, duplexKey) { + return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null; +} + +function getHighWaterMark(state, options, duplexKey, isDuplex) { + var hwm = highWaterMarkFrom(options, isDuplex, duplexKey); + + if (hwm != null) { + if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) { + var name = isDuplex ? duplexKey : 'highWaterMark'; + throw new ERR_INVALID_OPT_VALUE(name, hwm); + } + + return Math.floor(hwm); + } // Default value + + + return state.objectMode ? 16 : 16 * 1024; +} + +module.exports = { + getHighWaterMark: getHighWaterMark +};
\ No newline at end of file diff --git a/node_modules/readable-stream/lib/internal/streams/stream-browser.js b/node_modules/readable-stream/lib/internal/streams/stream-browser.js new file mode 100644 index 0000000..9332a3f --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/stream-browser.js @@ -0,0 +1 @@ +module.exports = require('events').EventEmitter; diff --git a/node_modules/readable-stream/lib/internal/streams/stream.js b/node_modules/readable-stream/lib/internal/streams/stream.js new file mode 100644 index 0000000..ce2ad5b --- /dev/null +++ b/node_modules/readable-stream/lib/internal/streams/stream.js @@ -0,0 +1 @@ +module.exports = require('stream'); |