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LibJS: Partially implement resizable ArrayBuffer objects

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This is (part of) a normative change in the ECMA-262 spec. See:
a9ae96e

This implements just support for resizing ArrayBuffer objects. This does
not implement the SharedArrayBuffer changes, as we do not have enough
support to do so.
This commit is contained in:
Timothy Flynn 2023-10-14 19:10:55 -04:00 • committed by Andreas Kling
parent a1e2f131c4
commit 29ac6e3689
13 changed files with 369 additions and 14 deletions
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15
Userland/Libraries/LibJS/Tests/builtins/ArrayBuffer/ArrayBuffer.js
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@ -17,3 +17,18 @@ test("ArrayBuffer size limit", () => {
new ArrayBuffer(2 ** 53);
}).toThrowWithMessage(RangeError, "Invalid array buffer length");
});
test("invalid ArrayBuffer maximum size option", () => {
expect(() => {
new ArrayBuffer(10, { maxByteLength: -1 });
}).toThrowWithMessage(RangeError, "Index must be a positive integer");
});
test("ArrayBuffer size exceeds maximum size", () => {
expect(() => {
new ArrayBuffer(10, { maxByteLength: 5 });
}).toThrowWithMessage(
RangeError,
"ArrayBuffer byte length of 10 exceeds the max byte length of 5"
);
});