length.any.js (1719B)
1 // META: global=window,dedicatedworker,jsshell,shadowrealm 2 3 test(() => { 4 const thisValues = [ 5 undefined, 6 null, 7 true, 8 "", 9 Symbol(), 10 1, 11 {}, 12 WebAssembly.Table, 13 WebAssembly.Table.prototype, 14 ]; 15 16 const desc = Object.getOwnPropertyDescriptor(WebAssembly.Table.prototype, "length"); 17 assert_equals(typeof desc, "object"); 18 19 const getter = desc.get; 20 assert_equals(typeof getter, "function"); 21 22 assert_equals(typeof desc.set, "undefined"); 23 24 for (const thisValue of thisValues) { 25 assert_throws_js(TypeError, () => getter.call(thisValue), `this=${format_value(thisValue)}`); 26 } 27 }, "Branding"); 28 29 test(() => { 30 const argument = { "element": "anyfunc", "initial": 2 }; 31 const table = new WebAssembly.Table(argument); 32 assert_equals(table.length, 2, "Initial length"); 33 34 const desc = Object.getOwnPropertyDescriptor(WebAssembly.Table.prototype, "length"); 35 assert_equals(typeof desc, "object"); 36 37 const getter = desc.get; 38 assert_equals(typeof getter, "function"); 39 40 assert_equals(getter.call(table, {}), 2); 41 }, "Stray argument"); 42 43 test(() => { 44 const argument = { "element": "anyfunc", "initial": 2 }; 45 const table = new WebAssembly.Table(argument); 46 assert_equals(table.length, 2, "Initial length"); 47 table.length = 4; 48 assert_equals(table.length, 2, "Should not change the length"); 49 }, "Setting (sloppy mode)"); 50 51 test(() => { 52 const argument = { "element": "anyfunc", "initial": 2 }; 53 const table = new WebAssembly.Table(argument); 54 assert_equals(table.length, 2, "Initial length"); 55 assert_throws_js(TypeError, () => { 56 "use strict"; 57 table.length = 4; 58 }); 59 assert_equals(table.length, 2, "Should not change the length"); 60 }, "Setting (strict mode)");