1 // Copyright 2015 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Flags: --strong-mode
6 // Flags: --harmony-classes --harmony-arrow-functions
12 function assertTypeError(script) { assertThrows(script, TypeError) }
13 function assertSyntaxError(script) { assertThrows(script, SyntaxError) }
14 function assertReferenceError(script) { assertThrows(script, ReferenceError) }
16 (function ImmutableClassBindings() {
18 assertTypeError(function(){ eval("C = 0") });
19 assertTypeError(function(){ eval("D = 0") });
20 assertEquals('function', typeof C);
21 assertEquals('function', typeof D);
24 function constructor(body) {
25 return "'use strong'; " +
26 "(class extends Object { constructor() { " + body + " } })";
29 (function NoMissingSuper() {
30 assertReferenceError(constructor(""));
31 assertReferenceError(constructor("1"));
34 (function NoNestedSuper() {
35 assertSyntaxError(constructor("(super());"));
36 assertSyntaxError(constructor("(() => super())();"));
37 assertSyntaxError(constructor("{ super(); }"));
38 assertSyntaxError(constructor("if (1) super();"));
41 (function NoDuplicateSuper() {
42 assertSyntaxError(constructor("super(), super();"));
43 assertSyntaxError(constructor("super(); super();"));
44 assertSyntaxError(constructor("super(); (super());"));
45 assertSyntaxError(constructor("super(); { super() }"));
46 assertSyntaxError(constructor("super(); (() => super())();"));
49 (function NoReturnValue() {
50 assertSyntaxError(constructor("return {};"));
51 assertSyntaxError(constructor("return undefined;"));
52 assertSyntaxError(constructor("{ return {}; }"));
53 assertSyntaxError(constructor("if (1) return {};"));
56 (function NoReturnBeforeSuper() {
57 assertSyntaxError(constructor("return; super();"));
58 assertSyntaxError(constructor("if (0) return; super();"));
59 assertSyntaxError(constructor("{ return; } super();"));