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// META: global=window,dedicatedworker,jsshell
// META: script=/wasm/jsapi/wasm-module-builder.js
test(() => {
const thisValues = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly.Memory,
WebAssembly.Memory.prototype,
];
const desc = Object.getOwnPropertyDescriptor(WebAssembly.Memory.prototype, "toFixedLengthBuffer");
assert_equals(typeof desc, "object");
const fun = desc.value;
assert_equals(typeof desc.value, "function");
for (const thisValue of thisValues) {
assert_throws_js(TypeError, () => fun.call(thisValue), `this=${format_value(thisValue)}`);
}
}, "API surface");
test(() => {
const memory = new WebAssembly.Memory({ initial: 0, maximum: 1 });
const buffer1 = memory.buffer;
assert_false(buffer1.resizable, "By default the AB is initially not resizable");
const buffer2 = memory.toFixedLengthBuffer();
assert_equals(buffer1, buffer2, "Not changing resizability does not make a new object");
const buffer3 = memory.toResizableBuffer();
assert_not_equals(buffer2, buffer3, "Changing resizability makes a new object");
assert_true(buffer3.resizable);
assert_true(buffer2.detached);
assert_equals(memory.buffer, buffer3);
}, "toFixedLengthBuffer caching behavior");
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