From 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 03:47:29 +0200 Subject: Adding upstream version 115.8.0esr. Signed-off-by: Daniel Baumann --- testing/web-platform/tests/common/sab.js | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 testing/web-platform/tests/common/sab.js (limited to 'testing/web-platform/tests/common/sab.js') diff --git a/testing/web-platform/tests/common/sab.js b/testing/web-platform/tests/common/sab.js new file mode 100644 index 0000000000..a3ea610e16 --- /dev/null +++ b/testing/web-platform/tests/common/sab.js @@ -0,0 +1,21 @@ +const createBuffer = (() => { + // See https://github.com/whatwg/html/issues/5380 for why not `new SharedArrayBuffer()` + let sabConstructor; + try { + sabConstructor = new WebAssembly.Memory({ shared:true, initial:0, maximum:0 }).buffer.constructor; + } catch(e) { + sabConstructor = null; + } + return (type, length, opts) => { + if (type === "ArrayBuffer") { + return new ArrayBuffer(length, opts); + } else if (type === "SharedArrayBuffer") { + if (sabConstructor && sabConstructor.name !== "SharedArrayBuffer") { + throw new Error("WebAssembly.Memory does not support shared:true"); + } + return new sabConstructor(length, opts); + } else { + throw new Error("type has to be ArrayBuffer or SharedArrayBuffer"); + } + } +})(); -- cgit v1.2.3