| // META: global=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(new TypeError(), () => getter.call(thisValue), `this=${format_value(thisValue)}`); |
| } |
| }, "Branding"); |
| |
| 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(new TypeError(), () => { |
| "use strict"; |
| memory.buffer = memory2.buffer; |
| }); |
| assert_equals(memory.buffer, buffer, "Should not change the buffer"); |
| }, "Setting (strict mode)"); |