94c233b8d1
Automatic update from web-platform-tests [rab/gsab] Add WPT tests for resizable ArrayBuffer Bug: v8:11111 Change-Id: I531f10cae15dd09e7934ad698acf9dcae225ca4c Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4082152 Reviewed-by: Domenic Denicola <domenic@chromium.org> Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by: Mason Freed <masonf@chromium.org> Cr-Commit-Position: refs/heads/main@{#1086557} -- wpt-commits: 5656a2f4653b5894c500b724778009ca9a26e48c wpt-pr: 37393
22 lines
768 B
JavaScript
22 lines
768 B
JavaScript
const createBuffer = (() => {
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// See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()`
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let sabConstructor;
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try {
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sabConstructor = new WebAssembly.Memory({ shared:true, initial:0, maximum:0 }).buffer.constructor;
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} catch(e) {
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sabConstructor = null;
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}
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return (type, length, opts) => {
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if (type === "ArrayBuffer") {
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return new ArrayBuffer(length, opts);
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} else if (type === "SharedArrayBuffer") {
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if (sabConstructor && sabConstructor.name !== "SharedArrayBuffer") {
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throw new Error("WebAssembly.Memory does not support shared:true");
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}
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return new sabConstructor(length, opts);
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} else {
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throw new Error("type has to be ArrayBuffer or SharedArrayBuffer");
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}
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}
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})();
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