Spaces:
Sleeping
Sleeping
File size: 6,663 Bytes
78c921d |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 |
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
import { __asyncValues, __awaiter } from "tslib";
import streamAdapters from './adapters.mjs';
import { decodeUtf8 } from '../util/utf8.mjs';
import { ITERATOR_DONE, AsyncQueue } from './interfaces.mjs';
import { toUint8Array, joinUint8Arrays } from '../util/buffer.mjs';
import { isPromise, isFetchResponse, isIterable, isAsyncIterable, isReadableDOMStream, isReadableNodeStream } from '../util/compat.mjs';
/** @ignore */
export class AsyncByteQueue extends AsyncQueue {
write(value) {
if ((value = toUint8Array(value)).byteLength > 0) {
return super.write(value);
}
}
toString(sync = false) {
return sync
? decodeUtf8(this.toUint8Array(true))
: this.toUint8Array(false).then(decodeUtf8);
}
toUint8Array(sync = false) {
return sync ? joinUint8Arrays(this._values)[0] : (() => __awaiter(this, void 0, void 0, function* () {
var e_1, _a;
const buffers = [];
let byteLength = 0;
try {
for (var _b = __asyncValues(this), _c; _c = yield _b.next(), !_c.done;) {
const chunk = _c.value;
buffers.push(chunk);
byteLength += chunk.byteLength;
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) yield _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
return joinUint8Arrays(buffers, byteLength)[0];
}))();
}
}
/** @ignore */
export class ByteStream {
constructor(source) {
if (source) {
this.source = new ByteStreamSource(streamAdapters.fromIterable(source));
}
}
[Symbol.iterator]() { return this; }
next(value) { return this.source.next(value); }
throw(value) { return this.source.throw(value); }
return(value) { return this.source.return(value); }
peek(size) { return this.source.peek(size); }
read(size) { return this.source.read(size); }
}
/** @ignore */
export class AsyncByteStream {
constructor(source) {
if (source instanceof AsyncByteStream) {
this.source = source.source;
}
else if (source instanceof AsyncByteQueue) {
this.source = new AsyncByteStreamSource(streamAdapters.fromAsyncIterable(source));
}
else if (isReadableNodeStream(source)) {
this.source = new AsyncByteStreamSource(streamAdapters.fromNodeStream(source));
}
else if (isReadableDOMStream(source)) {
this.source = new AsyncByteStreamSource(streamAdapters.fromDOMStream(source));
}
else if (isFetchResponse(source)) {
this.source = new AsyncByteStreamSource(streamAdapters.fromDOMStream(source.body));
}
else if (isIterable(source)) {
this.source = new AsyncByteStreamSource(streamAdapters.fromIterable(source));
}
else if (isPromise(source)) {
this.source = new AsyncByteStreamSource(streamAdapters.fromAsyncIterable(source));
}
else if (isAsyncIterable(source)) {
this.source = new AsyncByteStreamSource(streamAdapters.fromAsyncIterable(source));
}
}
[Symbol.asyncIterator]() { return this; }
next(value) { return this.source.next(value); }
throw(value) { return this.source.throw(value); }
return(value) { return this.source.return(value); }
get closed() { return this.source.closed; }
cancel(reason) { return this.source.cancel(reason); }
peek(size) { return this.source.peek(size); }
read(size) { return this.source.read(size); }
}
/** @ignore */
class ByteStreamSource {
constructor(source) {
this.source = source;
}
cancel(reason) { this.return(reason); }
peek(size) { return this.next(size, 'peek').value; }
read(size) { return this.next(size, 'read').value; }
next(size, cmd = 'read') { return this.source.next({ cmd, size }); }
throw(value) { return Object.create((this.source.throw && this.source.throw(value)) || ITERATOR_DONE); }
return(value) { return Object.create((this.source.return && this.source.return(value)) || ITERATOR_DONE); }
}
/** @ignore */
class AsyncByteStreamSource {
constructor(source) {
this.source = source;
this._closedPromise = new Promise((r) => this._closedPromiseResolve = r);
}
cancel(reason) {
return __awaiter(this, void 0, void 0, function* () { yield this.return(reason); });
}
get closed() { return this._closedPromise; }
read(size) {
return __awaiter(this, void 0, void 0, function* () { return (yield this.next(size, 'read')).value; });
}
peek(size) {
return __awaiter(this, void 0, void 0, function* () { return (yield this.next(size, 'peek')).value; });
}
next(size, cmd = 'read') {
return __awaiter(this, void 0, void 0, function* () { return (yield this.source.next({ cmd, size })); });
}
throw(value) {
return __awaiter(this, void 0, void 0, function* () {
const result = (this.source.throw && (yield this.source.throw(value))) || ITERATOR_DONE;
this._closedPromiseResolve && this._closedPromiseResolve();
this._closedPromiseResolve = undefined;
return Object.create(result);
});
}
return(value) {
return __awaiter(this, void 0, void 0, function* () {
const result = (this.source.return && (yield this.source.return(value))) || ITERATOR_DONE;
this._closedPromiseResolve && this._closedPromiseResolve();
this._closedPromiseResolve = undefined;
return Object.create(result);
});
}
}
//# sourceMappingURL=stream.mjs.map
|