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// META: global=window,dedicatedworker,jsshell
test(() => {
const thisValues = [
undefined,
null,
true,
"",
Symbol(),
1,
{},
WebAssembly.Memory,
WebAssembly.Memory.prototype,
];
const desc = Object.getOwnPropertyDescriptor(WebAssembly.Memory.prototype, "buffer");
assert_equals(typeof desc, "object");
const getter = desc.get;
assert_equals(typeof getter, "function");
assert_equals(typeof desc.set, "undefined");
for (const thisValue of thisValues) {
assert_throws_js(TypeError, () => getter.call(thisValue), `this=${format_value(thisValue)}`);
}
}, "Branding");
test(() => {
const argument = { "initial": 0 };
const memory = new WebAssembly.Memory(argument);
const buffer = memory.buffer;
const desc = Object.getOwnPropertyDescriptor(WebAssembly.Memory.prototype, "buffer");
assert_equals(typeof desc, "object");
const getter = desc.get;
assert_equals(typeof getter, "function");
assert_equals(getter.call(memory, {}), buffer);
}, "Stray argument");
test(() => {
const argument = { "initial": 0 };
const memory = new WebAssembly.Memory(argument);
const memory2 = new WebAssembly.Memory(argument);
const buffer = memory.buffer;
assert_not_equals(buffer, memory2.buffer, "Need two distinct buffers");
memory.buffer = memory2.buffer;
assert_equals(memory.buffer, buffer, "Should not change the buffer");
}, "Setting (sloppy mode)");
test(() => {
const argument = { "initial": 0 };
const memory = new WebAssembly.Memory(argument);
const memory2 = new WebAssembly.Memory(argument);
const buffer = memory.buffer;
assert_not_equals(buffer, memory2.buffer, "Need two distinct buffers");
assert_throws_js(TypeError, () => {
"use strict";
memory.buffer = memory2.buffer;
});
assert_equals(memory.buffer, buffer, "Should not change the buffer");
}, "Setting (strict mode)");
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