Import JSC class tests

test/webkit/class-syntax-super.js

+// Copyright 2015 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  Redistributions in binary form must reproduce the above copyright
+//     notice, this list of conditions and the following disclaimer in the
+//     documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --harmony-sloppy
+
+description('Tests for ES6 class syntax "super"');
+
+var baseMethodValue = {};
+var valueInSetter = null;
+
+class Base {
+    constructor() { }
+    baseMethod() { return baseMethodValue; }
+    chainMethod() { return 'base'; }
+    static staticMethod() { return 'base3'; }
+}
+
+class Derived extends Base {
+    constructor() { super(); }
+    chainMethod() { return [super.chainMethod(), 'derived']; }
+    callBaseMethod() { return super.baseMethod(); }
+    get callBaseMethodInGetter() { return super['baseMethod'](); }
+    set callBaseMethodInSetter(x) { valueInSetter = super.baseMethod(); }
+    get baseMethodInGetterSetter() { return super.baseMethod; }
+    set baseMethodInGetterSetter(x) { valueInSetter = super['baseMethod']; }
+    static staticMethod() { return super.staticMethod(); }
+}
+
+class SecondDerived extends Derived {
+    constructor() { super(); }
+    chainMethod() { return super.chainMethod().concat(['secondDerived']); }
+}
+
+shouldBeTrue('(new Base) instanceof Base');
+shouldBeTrue('(new Derived) instanceof Derived');
+shouldBe('(new Derived).callBaseMethod()', 'baseMethodValue');
+shouldBe('x = (new Derived).callBaseMethod; x()', 'baseMethodValue');
+shouldBe('(new Derived).callBaseMethodInGetter', 'baseMethodValue');
+shouldBe('(new Derived).callBaseMethodInSetter = 1; valueInSetter', 'baseMethodValue');
+shouldBe('(new Derived).baseMethodInGetterSetter', '(new Base).baseMethod');
+shouldBe('(new Derived).baseMethodInGetterSetter = 1; valueInSetter', '(new Base).baseMethod');
+shouldBe('Derived.staticMethod()', '"base3"');
+shouldBe('(new SecondDerived).chainMethod()', '["base", "derived", "secondDerived"]');
+shouldNotThrow('x = class extends Base { constructor() { super(); } super() {} }');
+shouldThrow('x = class extends Base { constructor() { super(); } method() { super() } }',
+    '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('x = class extends Base { constructor() { super(); } method() { super } }', '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('x = class extends Base { constructor() { super(); } method() { return new super } }', '"SyntaxError: \'super\' keyword unexpected here"');
+// shouldBeTrue('(new x).method() instanceof Base');
+// shouldBeFalse('(new x).method() instanceof x');
+shouldNotThrow('x = class extends Base { constructor() { super(); } method1() { delete (super.foo) } method2() { delete super["foo"] } }');
+shouldThrow('(new x).method1()', '"ReferenceError: Unsupported reference to \'super\'"');
+shouldThrow('(new x).method2()', '"ReferenceError: Unsupported reference to \'super\'"');
+shouldBeTrue('new (class { constructor() { return undefined; } }) instanceof Object');
+shouldBeTrue('new (class { constructor() { return 1; } }) instanceof Object');
+shouldThrow('new (class extends Base { constructor() { return undefined } })');
+shouldBeTrue('new (class extends Base { constructor() { super(); return undefined } }) instanceof Object');
+shouldBe('x = { }; new (class extends Base { constructor() { return x } });', 'x');
+shouldBeFalse('x instanceof Base');
+shouldThrow('new (class extends Base { constructor() { } })', '"ReferenceError: this is not defined"');
+shouldThrow('new (class extends Base { constructor() { return 1; } })', '"TypeError: Derived constructors may only return object or undefined"');
+shouldThrow('new (class extends null { constructor() { return undefined } })');
+shouldThrow('new (class extends null { constructor() { super(); return undefined } })', '"TypeError: function () {} is not a constructor"');
+shouldBe('x = { }; new (class extends null { constructor() { return x } });', 'x');
+shouldBeTrue('x instanceof Object');
+shouldThrow('new (class extends null { constructor() { } })', '"ReferenceError: this is not defined"');
+shouldThrow('new (class extends null { constructor() { return 1; } })', '"TypeError: Derived constructors may only return object or undefined"');
+shouldThrow('new (class extends null { constructor() { super() } })', '"TypeError: function () {} is not a constructor"');
+shouldThrow('new (class { constructor() { super() } })', '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('function x() { super(); }', '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('new (class extends Object { constructor() { function x() { super() } } })', '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('new (class extends Object { constructor() { function x() { super.method } } })', '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('function x() { super.method(); }', '"SyntaxError: \'super\' keyword unexpected here"');
+shouldThrow('function x() { super(); }', '"SyntaxError: \'super\' keyword unexpected here"');
+
+var successfullyParsed = true;