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How to use TransferArrayBuffer method in wpt

Best JavaScript code snippet using wpt

v8.d.ts

Source:v8.d.ts

1declare module "v8" {2    import { Readable } from "stream";3    interface HeapSpaceInfo {4        space_name: string;5        space_size: number;6        space_used_size: number;7        space_available_size: number;8        physical_space_size: number;9    }10    // ** Signifies if the --zap_code_space option is enabled or not.  1 == enabled, 0 == disabled. */11    type DoesZapCodeSpaceFlag = 0 | 1;12    interface HeapInfo {13        total_heap_size: number;14        total_heap_size_executable: number;15        total_physical_size: number;16        total_available_size: number;17        used_heap_size: number;18        heap_size_limit: number;19        malloced_memory: number;20        peak_malloced_memory: number;21        does_zap_garbage: DoesZapCodeSpaceFlag;22        number_of_native_contexts: number;23        number_of_detached_contexts: number;24    }25    interface HeapCodeStatistics {26        code_and_metadata_size: number;27        bytecode_and_metadata_size: number;28        external_script_source_size: number;29    }30    /**31     * Returns an integer representing a "version tag" derived from the V8 version, command line flags and detected CPU features.32     * This is useful for determining whether a vm.Script cachedData buffer is compatible with this instance of V8.33     */34    function cachedDataVersionTag(): number;35    function getHeapStatistics(): HeapInfo;36    function getHeapSpaceStatistics(): HeapSpaceInfo[];37    function setFlagsFromString(flags: string): void;38    /**39     * Generates a snapshot of the current V8 heap and returns a Readable40     * Stream that may be used to read the JSON serialized representation.41     * This conversation was marked as resolved by joyeecheung42     * This JSON stream format is intended to be used with tools such as43     * Chrome DevTools. The JSON schema is undocumented and specific to the44     * V8 engine, and may change from one version of V8 to the next.45     */46    function getHeapSnapshot(): Readable;47    /**48     *49     * @param fileName The file path where the V8 heap snapshot is to be50     * saved. If not specified, a file name with the pattern51     * `'Heap-${yyyymmdd}-${hhmmss}-${pid}-${thread_id}.heapsnapshot'` will be52     * generated, where `{pid}` will be the PID of the Node.js process,53     * `{thread_id}` will be `0` when `writeHeapSnapshot()` is called from54     * the main Node.js thread or the id of a worker thread.55     */56    function writeHeapSnapshot(fileName?: string): string;57    function getHeapCodeStatistics(): HeapCodeStatistics;58    /**59     * @experimental60     */61    class Serializer {62        /**63         * Writes out a header, which includes the serialization format version.64         */65        writeHeader(): void;66        /**67         * Serializes a JavaScript value and adds the serialized representation to the internal buffer.68         * This throws an error if value cannot be serialized.69         */70        writeValue(val: any): boolean;71        /**72         * Returns the stored internal buffer.73         * This serializer should not be used once the buffer is released.74         * Calling this method results in undefined behavior if a previous write has failed.75         */76        releaseBuffer(): Buffer;77        /**78         * Marks an ArrayBuffer as having its contents transferred out of band.\79         * Pass the corresponding ArrayBuffer in the deserializing context to deserializer.transferArrayBuffer().80         */81        transferArrayBuffer(id: number, arrayBuffer: ArrayBuffer): void;82        /**83         * Write a raw 32-bit unsigned integer.84         */85        writeUint32(value: number): void;86        /**87         * Write a raw 64-bit unsigned integer, split into high and low 32-bit parts.88         */89        writeUint64(hi: number, lo: number): void;90        /**91         * Write a JS number value.92         */93        writeDouble(value: number): void;94        /**95         * Write raw bytes into the serializerâs internal buffer.96         * The deserializer will require a way to compute the length of the buffer.97         */98        writeRawBytes(buffer: NodeJS.TypedArray): void;99    }100    /**101     * A subclass of `Serializer` that serializes `TypedArray` (in particular `Buffer`) and `DataView` objects as host objects,102     * and only stores the part of their underlying `ArrayBuffers` that they are referring to.103     * @experimental104     */105    class DefaultSerializer extends Serializer {106    }107    /**108     * @experimental109     */110    class Deserializer {111        constructor(data: NodeJS.TypedArray);112        /**113         * Reads and validates a header (including the format version).114         * May, for example, reject an invalid or unsupported wire format.115         * In that case, an Error is thrown.116         */117        readHeader(): boolean;118        /**119         * Deserializes a JavaScript value from the buffer and returns it.120         */121        readValue(): any;122        /**123         * Marks an ArrayBuffer as having its contents transferred out of band.124         * Pass the corresponding `ArrayBuffer` in the serializing context to serializer.transferArrayBuffer()125         * (or return the id from serializer._getSharedArrayBufferId() in the case of SharedArrayBuffers).126         */127        transferArrayBuffer(id: number, arrayBuffer: ArrayBuffer): void;128        /**129         * Reads the underlying wire format version.130         * Likely mostly to be useful to legacy code reading old wire format versions.131         * May not be called before .readHeader().132         */133        getWireFormatVersion(): number;134        /**135         * Read a raw 32-bit unsigned integer and return it.136         */137        readUint32(): number;138        /**139         * Read a raw 64-bit unsigned integer and return it as an array [hi, lo] with two 32-bit unsigned integer entries.140         */141        readUint64(): [number, number];142        /**143         * Read a JS number value.144         */145        readDouble(): number;146        /**147         * Read raw bytes from the deserializerâs internal buffer.148         * The length parameter must correspond to the length of the buffer that was passed to serializer.writeRawBytes().149         */150        readRawBytes(length: number): Buffer;151    }152    /**153     * A subclass of `Serializer` that serializes `TypedArray` (in particular `Buffer`) and `DataView` objects as host objects,154     * and only stores the part of their underlying `ArrayBuffers` that they are referring to.155     * @experimental156     */157    class DefaultDeserializer extends Deserializer {158    }159    /**160     * Uses a `DefaultSerializer` to serialize value into a buffer.161     * @experimental162     */163    function serialize(value: any): Buffer;164    /**165     * Uses a `DefaultDeserializer` with default options to read a JS value from a buffer.166     * @experimental167     */168    function deserialize(data: NodeJS.TypedArray): any;...

buffer.test.ts

Source:buffer.test.ts

1import {2  transferArrayBuffer, getType3} from '../../src/serialize/helper';4import { serialize } from '../../src';5describe('buffer functions', () => {6  test('transferArrayBuffer', () => {7    let buf = new ArrayBuffer(0);8    buf = transferArrayBuffer(buf, 10);9    expect(buf.byteLength).toBe(10);10    buf = transferArrayBuffer(buf, 5);11    expect(buf.byteLength).toBe(5);12  });13  test('mock native ArrayBuffer.transfer', () => {14    let hasNativeFn = true;15    if (!ArrayBuffer.transfer) {16      hasNativeFn = false;17      ArrayBuffer.transfer = function(source: ArrayBuffer, length: number): ArrayBuffer {18        return new ArrayBuffer(length);19      };20    }21    let buf = new ArrayBuffer(0);22    buf = transferArrayBuffer(buf, 10);23    expect(buf.byteLength).toBe(10);24    if (!hasNativeFn) {25      delete ArrayBuffer.transfer;26    }27  });28  test('getType', () => {29    expect(getType(10)).toBe('integer');30    expect(getType(Math.PI)).toBe('float');31  });32  test('custom buffer page size', () => {33    const r = serialize(Math.PI, {34      bufferPageSize: 135    });36    expect(r.byteLength).toBe(5);37  });...

Using AI Code Generation

1var wpt = require('web-platform-test');2var test = wpt.test;3var assert_equals = wpt.assert_equals;4var assert_true = wpt.assert_true;5var assert_false = wpt.assert_false;6var assert_throws = wpt.assert_throws;7var assert_array_equals = wpt.assert_array_equals;8var assert_approx_equals = wpt.assert_approx_equals;9var assert_regexp_match = wpt.assert_regexp_match;10var assert_class_string = wpt.assert_class_string;11var assert_own_property = wpt.assert_own_property;12var assert_in_array = wpt.assert_in_array;13var assert_not_equals = wpt.assert_not_equals;14var assert_greater_than = wpt.assert_greater_than;15var assert_less_than = wpt.assert_less_than;16var assert_greater_than_equal = wpt.assert_greater_than_equal;17var assert_less_than_equal = wpt.assert_less_than_equal;18var assert_same_value = wpt.assert_same_value;19var assert_not_same_value = wpt.assert_not_same_value;20var assert_array_approx_equals = wpt.assert_array_approx_equals;21var assert_equals_array_approx = wpt.assert_equals_array_approx;22var assert_array_equals_array_approx = wpt.assert_array_equals_array_approx;23var assert_equals_approx_array = wpt.assert_equals_approx_array;24var assert_array_equals_approx_array = wpt.assert_array_equals_approx_array;25var assert_unreached = wpt.assert_unreached;26var assert_true_array_approx = wpt.assert_true_array_approx;27var assert_true_array_equals = wpt.assert_true_array_equals;28var assert_false_array_approx = wpt.assert_false_array_approx;29var assert_false_array_equals = wpt.assert_false_array_equals;30var assert_true_approx_array = wpt.assert_true_approx_array;31var assert_true_equals_array = wpt.assert_true_equals_array;32var assert_false_approx_array = wpt.assert_false_approx_array;33var assert_false_equals_array = wpt.assert_false_equals_array;34var assert_true_approx = wpt.assert_true_approx;35var assert_true_equals = wpt.assert_true_equals;36var assert_false_approx = wpt.assert_false_approx;37var assert_false_equals = wpt.assert_false_equals;38var assert_true = wpt.assert_true;39var assert_false = wpt.assert_false;40var assert_equals = wpt.assert_equals;41var assert_equals_approx = wpt.assert_equals_approx;42var assert_equals_array = wpt.assert_equals_array;43var assert_equals_array_approx = wpt.assert_equals_array_approx;

Using AI Code Generation

1function TransferArrayBuffer() {2  var ab = new ArrayBuffer(1);3  var ab2 = new ArrayBuffer(1);4  var ta = new Uint8Array(ab);5  var ta2 = new Uint8Array(ab2);6  ta[0] = 42;7  ta2[0] = 43;8  var r = transferArrayBuffer(ab, ab2);9  assert_equals(r, 1, "TransferArrayBuffer return value");10  assert_equals(ta[0], 43, "first array after transfer");11  assert_equals(ta2[0], 42, "second array after transfer");12}13function TransferArrayBuffer() {14  var ab = new ArrayBuffer(1);15  var ab2 = new ArrayBuffer(1);16  var ta = new Uint8Array(ab);17  var ta2 = new Uint8Array(ab2);18  ta[0] = 42;19  ta2[0] = 43;20  var r = transferArrayBuffer(ab, ab2);21  assert_equals(r, 1, "TransferArrayBuffer return value");22  assert_equals(ta[0], 43, "first array after transfer");23  assert_equals(ta2[0], 42, "second array after transfer");24}

Using AI Code Generation

1var ab = new ArrayBuffer(1);2var sab = new SharedArrayBuffer(1);3var ta = new Uint8Array(ab);4var sta = new Uint8Array(sab);5ta[0] = 1;6sta[0] = 2;7console.log("ab[0] == " + ta[0] + " should be 1");8console.log("sab[0] == " + sta[0] + " should be 2");9Regression window (if known):

Using AI Code Generation

1var buffer = new ArrayBuffer(8);2var worker = new Worker('worker.js');3worker.postMessage(buffer, [buffer]);4self.onmessage = function(e) {5  var buffer = e.data;6  var view = new DataView(buffer);7  view.setFloat64(0, 42.5);8  self.postMessage('done');9}10worker.onmessage = function(e) {11  var buffer = new ArrayBuffer(8);12  worker.postMessage(buffer, [buffer]);13};14self.onmessage = function(e) {15  var buffer = e.data;16  var view = new DataView(buffer);17  console.log(view.getFloat64(0));18  self.postMessage('done');19}

Using AI Code Generation

1var t = new Uint8Array(1000);2var w = new Worker('worker.js');3w.postMessage(t.buffer, [t.buffer]);4w.onmessage = function(e) {5  console.log(e.data);6};7self.onmessage = function(e) {8  var t = new Uint8Array(e.data);9  t[0] = 1;10  self.postMessage(t);11};

Using AI Code Generation

1var wpt = new WebPageTest('www.webpagetest.org');2    if (err) return console.error(err);3    console.log('Test status: ' + data.statusText);4    if (data.statusCode !== 200) return console.error(data.statusText);5    wpt.getTestResults(data.data.testId, function(err, data) {6        if (err) return console.error(err);7        console.log('Test results: ' + data.statusText);8        if (data.statusCode !== 200) return console.error(data.statusText);9        var result = data.data;10        console.log('First View: ' + result.summary.firstView.TTFB + 'ms');11        console.log('Repeat View: ' + result.summary.repeatView.TTFB + 'ms');12    });13});14### runTest(url, options, callback)15* location - The location to run the test from (see the list of locations)16* connectivity - The connectivity profile to use (see the list of connectivity profiles)17* runs - The number of test runs to perform (1-10)18* authType - The type of authentication to use (basic, digest, ntlm, negotiate)19* priority - The priority of the test (0-9)

Using AI Code Generation

1var wpt = new WebPlatformTest();2var worker = new Worker('worker.js');3worker.onmessage = function (e) {4    if (e.data === "done") {5        worker.terminate();6    }7};8worker.postMessage("start");9var wpt = new WebPlatformTest();10var buffer = new ArrayBuffer(1024 * 1024);11var view = new Uint8Array(buffer);12var i = 0;13var j = 0;14var k = 0;15var l = 0;16var m = 0;17var n = 0;18var o = 0;19var p = 0;20var q = 0;21var r = 0;22var s = 0;23var t = 0;24var u = 0;25var v = 0;26var w = 0;27var x = 0;28var y = 0;29var z = 0;30var a1 = 0;31var a2 = 0;32var a3 = 0;33var a4 = 0;34var a5 = 0;35var a6 = 0;36var a7 = 0;37var a8 = 0;38var a9 = 0;39var a10 = 0;40var a11 = 0;41var a12 = 0;42var a13 = 0;43var a14 = 0;44var a15 = 0;45var a16 = 0;46var a17 = 0;47var a18 = 0;48var a19 = 0;49var a20 = 0;50var a21 = 0;51var a22 = 0;52var a23 = 0;53var a24 = 0;54var a25 = 0;55var a26 = 0;56var a27 = 0;57var a28 = 0;58var a29 = 0;59var a30 = 0;60var a31 = 0;61var a32 = 0;62var a33 = 0;63var a34 = 0;64var a35 = 0;65var a36 = 0;66var a37 = 0;67var a38 = 0;68var a39 = 0;69var a40 = 0;70var a41 = 0;

Using AI Code Generation

1var wpt = require('web-platform-test');2wpt.runTest('html/semantics/embedded-content/the-canvas-element/transferable.html', function (err, res) {3    console.log(res);4});5{6  "dependencies": {7  }8}9{ results: 10   [ { test: 'html/semantics/embedded-content/the-canvas-element/transferable.html',11       status: 'PASS' } ],12  status: 'PASS' }

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