v8/test/mjsunit/harmony/super.js

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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Flags: --harmony-classes
(function TestSuperNamedLoads() {
function Base() { }
function Derived() {
this.derivedDataProperty = "xxx";
}
Derived.prototype = Object.create(Base.prototype);
function fBase() { return "Base " + this.toString(); }
Base.prototype.f = fBase.toMethod(Base.prototype);
function fDerived() {
assertEquals("Base this is Derived", super.f());
var a = super.x;
assertEquals(15, a);
assertEquals(15, super.x);
assertEquals(27, this.x);
return "Derived"
}
Base.prototype.x = 15;
Base.prototype.toString = function() { return "this is Base"; };
Derived.prototype.toString = function() { return "this is Derived"; };
Derived.prototype.x = 27;
Derived.prototype.f = fDerived.toMethod(Derived.prototype);
assertEquals("Base this is Base", new Base().f());
assertEquals("Derived", new Derived().f());
}());
(function TestSuperKeyedLoads() {
var x = 'x';
var derivedDataProperty = 'derivedDataProperty';
var f = 'f';
function Base() { }
function Derived() {
this[derivedDataProperty] = 'xxx';
}
Derived.prototype = Object.create(Base.prototype);
function fBase() { return "Base " + this.toString(); }
Base.prototype[f] = fBase.toMethod(Base.prototype);
function fDerived() {
assertEquals("Base this is Derived", super[f]());
var a = super[x];
assertEquals(15, a);
assertEquals(15, super[x]);
assertEquals(27, this[x]);
return "Derived"
}
Base.prototype[x] = 15;
Base.prototype.toString = function() { return "this is Base"; };
Derived.prototype.toString = function() { return "this is Derived"; };
Derived.prototype[x] = 27;
Derived.prototype[f] = fDerived.toMethod(Derived.prototype);
assertEquals("Base this is Base", new Base().f());
assertEquals("Derived", new Derived().f());
}());
(function TestSuperNumericKeyedLoads() {
var x = 1;
var derivedDataProperty = 2;
var f = 3;
function Base() { }
function Derived() {
this[derivedDataProperty] = 'xxx';
}
Derived.prototype = Object.create(Base.prototype);
function fBase() { return "Base " + this.toString(); }
Base.prototype[f] = fBase.toMethod(Base.prototype);
function fDerived() {
assertEquals("Base this is Derived", super[f]());
var a = super[x];
assertEquals(15, a);
assertEquals(15, super[x]);
assertEquals(27, this[x]);
return "Derived"
}
Base.prototype[x] = 15;
Base.prototype.toString = function() { return "this is Base"; };
Derived.prototype.toString = function() { return "this is Derived"; };
Derived.prototype[x] = 27;
Derived.prototype[f] = fDerived.toMethod(Derived.prototype);
assertEquals("Base this is Base", new Base()[f]());
assertEquals("Derived", new Derived()[f]());
}());
(function TestSuperKeywordNonMethod() {
function f() {
super.unknown();
}
assertThrows(f, ReferenceError);
}());
(function TestGetter() {
function Base() {}
var derived;
Base.prototype = {
constructor: Base,
get x() {
assertSame(this, derived);
return this._x;
},
_x: 'base'
};
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 'derived'
};
Derived.prototype.testGetter = function() {
return super.x;
}.toMethod(Derived.prototype);
Derived.prototype.testGetterStrict = function() {
'use strict';
return super.x;
}.toMethod(Derived.prototype);
derived = new Derived();
assertEquals('derived', derived.testGetter());
derived = new Derived();
assertEquals('derived', derived.testGetterStrict());
}());
(function TestGetterKeyed() {
var x = 'x';
function Base() {}
var derived;
Base.prototype = {
constructor: Base,
get x() {
assertSame(this, derived);
return this._x;
},
_x: 'base'
};
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 'derived'
};
Derived.prototype.testGetter = function() {
return super[x];
}.toMethod(Derived.prototype);
Derived.prototype.testGetterStrict = function() {
'use strict';
return super[x];
}.toMethod(Derived.prototype);
Derived.prototype.testGetterWithToString = function() {
var toStringCalled;
var o = { toString: function() {
toStringCalled++;
return 'x';
} };
toStringCalled = 0;
assertEquals('derived', super[o]);
assertEquals(1, toStringCalled);
var eToThrow = new Error();
var oThrowsInToString = { toString: function() {
throw eToThrow;
} };
var ex = null;
try {
super[oThrowsInToString];
} catch(e) { ex = e }
assertEquals(eToThrow, ex);
var oReturnsNumericString = { toString: function() {
return "1";
} };
assertEquals(undefined, super[oReturnsNumericString]);
assertEquals(undefined, super[1]);
}.toMethod(Derived.prototype);
derived = new Derived();
assertEquals('derived', derived.testGetter());
derived = new Derived();
assertEquals('derived', derived.testGetterStrict());
derived = new Derived();
derived.testGetterWithToString();
}());
(function TestGetterNumericKeyed() {
var x = 42;
function Base() {}
var derived;
Base.prototype = {
constructor: Base,
_x: 'base'
};
Object.defineProperty(Base.prototype, x, { get: function() {
assertSame(this, derived);
return this._x;
}});
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 'derived'
};
Derived.prototype.testGetter = function() {
return super[x];
}.toMethod(Derived.prototype);
Derived.prototype.testGetterStrict = function() {
'use strict';
return super[x];
}.toMethod(Derived.prototype);
Derived.prototype.testGetterWithToString = function() {
var toStringCalled;
var o = { toString: function() {
toStringCalled++;
return '42';
} };
toStringCalled = 0;
assertEquals('derived', super[o]);
assertEquals(1, toStringCalled);
var eToThrow = new Error();
var oThrowsInToString = { toString: function() {
throw eToThrow;
} };
var ex = null;
try {
super[oThrowsInToString];
} catch(e) { ex = e }
assertEquals(eToThrow, ex);
var oReturnsNumericString = { toString: function() {
return "42";
} };
assertEquals('derived', super[oReturnsNumericString]);
assertEquals('derived', super[42]);
}.toMethod(Derived.prototype);
derived = new Derived();
assertEquals('derived', derived.testGetter());
derived = new Derived();
assertEquals('derived', derived.testGetterStrict());
derived = new Derived();
derived.testGetterWithToString();
}());
(function TestSetter() {
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
return this._x;
},
set x(v) {
this._x = v;
},
_x: 'base'
};
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 'derived'
};
Derived.prototype.testSetter = function() {
assertEquals('foobar', super.x = 'foobar');
assertEquals('foobarabc', super.x += 'abc');
}.toMethod(Derived.prototype);
var d = new Derived();
d.testSetter();
assertEquals('base', Base.prototype._x);
assertEquals('foobarabc', d._x);
d._x = '';
Derived.prototype.testSetterStrict = function() {
'use strict';
assertEquals('foobar', super.x = 'foobar');
assertEquals('foobarabc', super.x += 'abc');
}.toMethod(Derived.prototype);
d.testSetterStrict();
assertEquals('base', Base.prototype._x);
assertEquals('foobarabc', d._x);
}());
(function TestSetterNumericKeyed() {
var x = 42;
function Base() {}
Base.prototype = {
constructor: Base,
_x: 'base'
};
Object.defineProperty(Base.prototype, x,
{ get: function() { return this._x; },
set: function(v) { this._x = v; }
});
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 'derived'
};
Derived.prototype.testSetter = function() {
assertEquals('foobar', super[x] = 'foobar');
assertEquals('foobarabc', super[x] += 'abc');
}.toMethod(Derived.prototype);
var d = new Derived();
d.testSetter();
assertEquals('base', Base.prototype._x);
assertEquals('foobarabc', d._x);
d._x = '';
Derived.prototype.testSetterStrict = function() {
'use strict';
assertEquals('foobar', super[x] = 'foobar');
assertEquals('foobarabc', super[x] += 'abc');
}.toMethod(Derived.prototype);
d.testSetterStrict();
assertEquals('base', Base.prototype._x);
assertEquals('foobarabc', d._x);
Derived.prototype.testSetterWithToString = function() {
var toStringCalled;
var o = { toString: function() {
toStringCalled++;
return x;
} };
toStringCalled = 0;
super[o] = 'set';
assertEquals(1, toStringCalled);
assertEquals('set', this._x);
var eToThrow = new Error();
var oThrowsInToString = { toString: function() {
throw eToThrow;
} };
var ex = null;
try {
super[oThrowsInToString] = 'xyz';
} catch(e) { ex = e }
assertEquals(eToThrow, ex);
assertEquals('set', this._x);
}.toMethod(Derived.prototype);
d = new Derived();
d.testSetterWithToString();
}());
(function TestSetterKeyed() {
var x = 'x';
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
return this._x;
},
set x(v) {
this._x = v;
},
_x: 'base'
};
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 'derived'
};
Derived.prototype.testSetter = function() {
assertEquals('foobar', super[x] = 'foobar');
assertEquals('foobarabc', super[x] += 'abc');
}.toMethod(Derived.prototype);
var d = new Derived();
d.testSetter();
assertEquals('base', Base.prototype._x);
assertEquals('foobarabc', d._x);
d._x = '';
Derived.prototype.testSetterStrict = function() {
'use strict';
assertEquals('foobar', super[x] = 'foobar');
assertEquals('foobarabc', super[x] += 'abc');
}.toMethod(Derived.prototype);
d.testSetterStrict();
assertEquals('base', Base.prototype._x);
assertEquals('foobarabc', d._x);
Derived.prototype.testSetterWithToString = function() {
var toStringCalled;
var o = { toString: function() {
toStringCalled++;
return 'x';
} };
toStringCalled = 0;
super[o] = 'set';
assertEquals(1, toStringCalled);
assertEquals('set', this._x);
var eToThrow = new Error();
var oThrowsInToString = { toString: function() {
throw eToThrow;
} };
var ex = null;
try {
super[oThrowsInToString] = 'xyz';
} catch(e) { ex = e }
assertEquals(eToThrow, ex);
assertEquals('set', this._x);
var oReturnsNumericString = { toString: function() {
return "1";
} };
assertEquals('abc', super[oReturnsNumericString] = 'abc');
assertEquals('set', this._x);
assertEquals(10, super[1] = 10);
}.toMethod(Derived.prototype);
d = new Derived();
d.testSetterWithToString();
}());
(function TestSetterDataProperties() {
function Base() {}
Base.prototype = {
constructor: Base,
x: 'x from Base'
};
function Derived() {}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testSetter = function() {
assertEquals('x from Base', super.x);
super.x = 'data property';
assertEquals('x from Base', super.x);
assertEquals('data property', this.x);
}.toMethod(Derived.prototype);
new Derived().testSetter();
}());
(function TestKeyedSetterDataProperties() {
var x = 'x';
function Base() {}
Base.prototype = {
constructor: Base,
x: 'x from Base'
};
function Derived() {}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testSetter = function() {
assertEquals('x from Base', super[x]);
super[x] = 'data property';
assertEquals('x from Base', super[x]);
assertEquals('data property', this[x]);
}.toMethod(Derived.prototype);
new Derived().testSetter();
}());
(function TestKeyedNumericSetterDataProperties() {
var x = 42;
function Base() {}
Base.prototype = {
constructor: Base,
42: 'x from Base'
};
function Derived() {}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testSetter = function() {
assertEquals('x from Base', super[x]);
super[x] = 'data property';
assertEquals('x from Base', super[x]);
assertEquals('data property', this[x]);
}.toMethod(Derived.prototype);
new Derived().testSetter();
}());
(function TestAccessorsOnPrimitives() {
var getCalled = 0;
var setCalled = 0;
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
getCalled++;
return 1;
},
set x(v) {
setCalled++;
return v;
},
};
function Derived() {}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testSetter = function() {
setCalled = 0;
getCalled = 0;
assertEquals('object', typeof this);
assertTrue(this instanceof Number)
assertEquals(42, this.valueOf());
assertEquals(1, super.x);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
assertEquals(5, super.x = 5);
assertEquals(1, getCalled);
assertEquals(1, setCalled);
assertEquals(6, super.x += 5);
assertEquals(2, getCalled);
assertEquals(2, setCalled);
super.newProperty = 15;
assertEquals(15, this.newProperty);
assertEquals(undefined, super.newProperty);
}.toMethod(Derived.prototype);
Derived.prototype.testSetterStrict = function() {
'use strict';
getCalled = 0;
setCalled = 0;
assertTrue(42 === this);
assertEquals(1, super.x);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
assertEquals(5, super.x = 5);
assertEquals(1, getCalled);
assertEquals(1, setCalled);
assertEquals(6, super.x += 5);
assertEquals(2, getCalled);
assertEquals(2, setCalled);
var ex;
try {
super.newProperty = 15;
} catch (e) { ex = e; }
assertTrue(ex instanceof TypeError);
}.toMethod(Derived.prototype);
Derived.prototype.testSetter.call(42);
Derived.prototype.testSetterStrict.call(42);
function DerivedFromString() {}
DerivedFromString.prototype = Object.create(String.prototype);
function f() {
'use strict';
assertTrue(42 === this);
assertEquals(String.prototype.toString, super.toString);
var ex;
try {
super.toString();
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
}
f.toMethod(DerivedFromString.prototype).call(42);
}());
(function TestKeyedAccessorsOnPrimitives() {
var x = 'x';
var newProperty = 'newProperty';
var toString = 'toString';
var getCalled = 0;
var setCalled = 0;
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
getCalled++;
return 1;
},
set x(v) {
setCalled++;
return v;
},
};
function Derived() {}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testSetter = function() {
setCalled = 0;
getCalled = 0;
assertEquals('object', typeof this);
assertTrue(this instanceof Number)
assertEquals(42, this.valueOf());
assertEquals(1, super[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
assertEquals(5, super[x] = 5);
assertEquals(1, getCalled);
assertEquals(1, setCalled);
assertEquals(6, super[x] += 5);
assertEquals(2, getCalled);
assertEquals(2, setCalled);
super[newProperty] = 15;
assertEquals(15, this[newProperty]);
assertEquals(undefined, super[newProperty]);
}.toMethod(Derived.prototype);
Derived.prototype.testSetterStrict = function() {
'use strict';
getCalled = 0;
setCalled = 0;
assertTrue(42 === this);
assertEquals(1, super[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
assertEquals(5, super[x] = 5);
assertEquals(1, getCalled);
assertEquals(1, setCalled);
assertEquals(6, super[x] += 5);
assertEquals(2, getCalled);
assertEquals(2, setCalled);
var ex;
try {
super[newProperty] = 15;
} catch (e) { ex = e; }
assertTrue(ex instanceof TypeError);
}.toMethod(Derived.prototype);
Derived.prototype.testSetter.call(42);
Derived.prototype.testSetterStrict.call(42);
function DerivedFromString() {}
DerivedFromString.prototype = Object.create(String.prototype);
function f() {
'use strict';
assertTrue(42 === this);
assertEquals(String.prototype.toString, super[toString]);
var ex;
try {
super[toString]();
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
}
f.toMethod(DerivedFromString.prototype).call(42);
}());
(function TestNumericKeyedAccessorsOnPrimitives() {
var x = 42;
var newProperty = 43;
var getCalled = 0;
var setCalled = 0;
function Base() {}
Base.prototype = {
constructor: Base,
};
Object.defineProperty(Base.prototype, x, {
get: function() {
getCalled++;
return 1;
},
set: function(v) {
setCalled++;
return v;
}
});
function Derived() {}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testSetter = function() {
setCalled = 0;
getCalled = 0;
assertEquals('object', typeof this);
assertTrue(this instanceof Number)
assertEquals(42, this.valueOf());
assertEquals(1, super[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
assertEquals(5, super[x] = 5);
assertEquals(1, getCalled);
assertEquals(1, setCalled);
assertEquals(6, super[x] += 5);
assertEquals(2, getCalled);
assertEquals(2, setCalled);
super[newProperty] = 15;
assertEquals(15, this[newProperty]);
assertEquals(undefined, super[newProperty]);
}.toMethod(Derived.prototype);
Derived.prototype.testSetterStrict = function() {
'use strict';
getCalled = 0;
setCalled = 0;
assertTrue(42 === this);
assertEquals(1, super[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
assertEquals(5, super[x] = 5);
assertEquals(1, getCalled);
assertEquals(1, setCalled);
assertEquals(6, super[x] += 5);
assertEquals(2, getCalled);
assertEquals(2, setCalled);
var ex;
try {
super[newProperty] = 15;
} catch (e) { ex = e; }
assertTrue(ex instanceof TypeError);
}.toMethod(Derived.prototype);
Derived.prototype.testSetter.call(42);
Derived.prototype.testSetterStrict.call(42);
}());
(function TestKeyedNumericSetterOnExotics() {
function Base() {}
function Derived() {}
Derived.prototype = { __proto__: Base.prototype };
Derived.prototype.callSetterOnArray = function() {
super[42] = 1;
}.toMethod(Derived.prototype);
Derived.prototype.callStrictSetterOnString = function() {
'use strict';
assertEquals('string', typeof this);
assertTrue('abcdef' === this);
var ex = null;
try {
super[5] = 'q';
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
ex = null;
try {
super[1024] = 'q';
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
}.toMethod(Derived.prototype);
var x = [];
assertEquals(0, x.length);
Derived.prototype.callSetterOnArray.call(x);
assertEquals(43, x.length);
assertEquals(1, x[42]);
var s = 'abcdef';
Derived.prototype.callStrictSetterOnString.call(s)
}());
(function TestSetterUndefinedProperties() {
function Base() {}
function Derived() {}
Derived.prototype = { __proto__ : Base.prototype };
Derived.prototype.mSloppy = function () {
assertEquals(undefined, super.x);
assertEquals(undefined, this.x);
super.x = 10;
assertEquals(10, this.x);
assertEquals(undefined, super.x);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function () {
'use strict';
assertEquals(undefined, super.x);
assertEquals(undefined, this.x);
super.x = 10;
assertEquals(10, this.x);
assertEquals(undefined, super.x);
}.toMethod(Derived.prototype);
var d = new Derived();
d.mSloppy();
assertEquals(10, d.x);
var d1 = new Derived();
d1.mStrict();
assertEquals(10, d.x);
}());
(function TestKeyedSetterUndefinedProperties() {
var x = 'x';
function Base() {}
function Derived() {}
Derived.prototype = { __proto__ : Base.prototype };
Derived.prototype.mSloppy = function () {
assertEquals(undefined, super[x]);
assertEquals(undefined, this[x]);
super[x] = 10;
assertEquals(10, this[x]);
assertEquals(undefined, super[x]);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function () {
'use strict';
assertEquals(undefined, super[x]);
assertEquals(undefined, this[x]);
super[x] = 10;
assertEquals(10, this[x]);
assertEquals(undefined, super[x]);
}.toMethod(Derived.prototype);
var d = new Derived();
d.mSloppy();
assertEquals(10, d.x);
var d1 = new Derived();
d1.mStrict();
assertEquals(10, d.x);
}());
(function TestKeyedNumericSetterUndefinedProperties() {
var x = 42;
function Base() {}
function Derived() {}
Derived.prototype = { __proto__ : Base.prototype };
Derived.prototype.mSloppy = function () {
assertEquals(undefined, super[x]);
assertEquals(undefined, this[x]);
super[x] = 10;
assertEquals(10, this[x]);
assertEquals(undefined, super[x]);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function () {
'use strict';
assertEquals(undefined, super[x]);
assertEquals(undefined, this[x]);
super[x] = 10;
assertEquals(10, this[x]);
assertEquals(undefined, super[x]);
}.toMethod(Derived.prototype);
var d = new Derived();
d.mSloppy();
assertEquals(10, d[x]);
var d1 = new Derived();
d1.mStrict();
assertEquals(10, d[x]);
}());
(function TestSetterCreatingOwnProperties() {
function Base() {}
function Derived() {}
Derived.prototype = { __proto__ : Base.prototype };
var setterCalled;
Derived.prototype.mSloppy = function() {
assertEquals(42, this.ownReadOnly);
super.ownReadOnly = 55;
assertEquals(42, this.ownReadOnly);
assertEquals(15, this.ownReadonlyAccessor);
super.ownReadonlyAccessor = 55;
assertEquals(15, this.ownReadonlyAccessor);
setterCalled = 0;
super.ownSetter = 42;
assertEquals(1, setterCalled);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
assertEquals(42, this.ownReadOnly);
var ex;
try {
super.ownReadOnly = 55;
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(42, this.ownReadOnly);
assertEquals(15, this.ownReadonlyAccessor);
ex = null;
try {
super.ownReadonlyAccessor = 55;
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(15, this.ownReadonlyAccessor);
setterCalled = 0;
super.ownSetter = 42;
assertEquals(1, setterCalled);
}.toMethod(Derived.prototype);
var d = new Derived();
Object.defineProperty(d, 'ownReadOnly', { value : 42, writable : false });
Object.defineProperty(d, 'ownSetter',
{ set : function() { setterCalled++; } });
Object.defineProperty(d, 'ownReadonlyAccessor',
{ get : function() { return 15; }});
d.mSloppy();
d.mStrict();
}());
(function TestSetterInForIn() {
var setCalled = 0;
var getCalled = 0;
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
getCalled++;
return 1;
},
set x(v) {
setCalled++;
this.x_.push(v);
},
};
function Derived() {
this.x_ = [];
}
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
};
Derived.prototype.testIter = function() {
setCalled = 0;
getCalled = 0;
for (super.x in [1,2,3]) {}
assertEquals(0, getCalled);
assertEquals(3, setCalled);
assertEquals(["0","1","2"], this.x_);
}.toMethod(Derived.prototype);
new Derived().testIter();
var x = 'x';
Derived.prototype.testIterKeyed = function() {
setCalled = 0;
getCalled = 0;
for (super[x] in [1,2,3]) {}
assertEquals(0, getCalled);
assertEquals(3, setCalled);
assertEquals(["0","1","2"], this.x_);
this.x_ = [];
setCalled = 0;
getCalled = 0;
var toStringCalled = 0;
var o = {toString: function () { toStringCalled++; return x }};
for (super[o] in [1,2,3]) {}
assertEquals(0, getCalled);
assertEquals(3, setCalled);
assertEquals(3, toStringCalled);
assertEquals(["0","1","2"], this.x_);
}.toMethod(Derived.prototype);
new Derived().testIterKeyed();
}());
(function TestKeyedSetterCreatingOwnProperties() {
var ownReadOnly = 'ownReadOnly';
var ownReadonlyAccessor = 'ownReadonlyAccessor';
var ownSetter = 'ownSetter';
function Base() {}
function Derived() {}
Derived.prototype = { __proto__ : Base.prototype };
var setterCalled;
Derived.prototype.mSloppy = function() {
assertEquals(42, this[ownReadOnly]);
super[ownReadOnly] = 55;
assertEquals(42, this[ownReadOnly]);
assertEquals(15, this[ownReadonlyAccessor]);
super[ownReadonlyAccessor] = 55;
assertEquals(15, this[ownReadonlyAccessor]);
setterCalled = 0;
super[ownSetter] = 42;
assertEquals(1, setterCalled);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
assertEquals(42, this[ownReadOnly]);
var ex;
try {
super[ownReadOnly] = 55;
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(42, this[ownReadOnly]);
assertEquals(15, this[ownReadonlyAccessor]);
ex = null;
try {
super[ownReadonlyAccessor] = 55;
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(15, this[ownReadonlyAccessor]);
setterCalled = 0;
super[ownSetter] = 42;
assertEquals(1, setterCalled);
}.toMethod(Derived.prototype);
var d = new Derived();
Object.defineProperty(d, 'ownReadOnly', { value : 42, writable : false });
Object.defineProperty(d, 'ownSetter',
{ set : function() { setterCalled++; } });
Object.defineProperty(d, 'ownReadonlyAccessor',
{ get : function() { return 15; }});
d.mSloppy();
d.mStrict();
}());
(function TestKeyedNumericSetterCreatingOwnProperties() {
var ownReadOnly = 42;
var ownReadonlyAccessor = 43;
var ownSetter = 44;
function Base() {}
function Derived() {}
Derived.prototype = { __proto__ : Base.prototype };
var setterCalled;
Derived.prototype.mSloppy = function() {
assertEquals(42, this[ownReadOnly]);
super[ownReadOnly] = 55;
assertEquals(42, this[ownReadOnly]);
assertEquals(15, this[ownReadonlyAccessor]);
super[ownReadonlyAccessor] = 55;
assertEquals(15, this[ownReadonlyAccessor]);
setterCalled = 0;
super[ownSetter] = 42;
assertEquals(1, setterCalled);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
assertEquals(42, this[ownReadOnly]);
var ex;
try {
super[ownReadOnly] = 55;
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(42, this[ownReadOnly]);
assertEquals(15, this[ownReadonlyAccessor]);
ex = null;
try {
super[ownReadonlyAccessor] = 55;
} catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(15, this[ownReadonlyAccessor]);
setterCalled = 0;
super[ownSetter] = 42;
assertEquals(1, setterCalled);
}.toMethod(Derived.prototype);
var d = new Derived();
Object.defineProperty(d, ownReadOnly, { value : 42, writable : false });
Object.defineProperty(d, ownSetter,
{ set : function() { setterCalled++; } });
Object.defineProperty(d, ownReadonlyAccessor,
{ get : function() { return 15; }});
d.mSloppy();
d.mStrict();
}());
(function TestSetterNoProtoWalk() {
function Base() {}
function Derived() {}
var getCalled;
var setCalled;
Derived.prototype = {
__proto__ : Base.prototype,
get x() { getCalled++; return 42; },
set x(v) { setCalled++; }
};
Derived.prototype.mSloppy = function() {
setCalled = 0;
getCalled = 0;
assertEquals(42, this.x);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
getCalled = 0;
setCalled = 0;
this.x = 43;
assertEquals(0, getCalled);
assertEquals(1, setCalled);
getCalled = 0;
setCalled = 0;
super.x = 15;
assertEquals(0, setCalled);
assertEquals(0, getCalled);
assertEquals(15, this.x);
assertEquals(0, getCalled);
assertEquals(0, setCalled);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
setCalled = 0;
getCalled = 0;
assertEquals(42, this.x);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
getCalled = 0;
setCalled = 0;
this.x = 43;
assertEquals(0, getCalled);
assertEquals(1, setCalled);
getCalled = 0;
setCalled = 0;
super.x = 15;
assertEquals(0, setCalled);
assertEquals(0, getCalled);
assertEquals(15, this.x);
assertEquals(0, getCalled);
assertEquals(0, setCalled);
}.toMethod(Derived.prototype);
new Derived().mSloppy();
new Derived().mStrict();
}());
(function TestKeyedSetterNoProtoWalk() {
var x = 'x';
function Base() {}
function Derived() {}
var getCalled;
var setCalled;
Derived.prototype = {
__proto__ : Base.prototype,
get x() { getCalled++; return 42; },
set x(v) { setCalled++; }
};
Derived.prototype.mSloppy = function() {
setCalled = 0;
getCalled = 0;
assertEquals(42, this[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
getCalled = 0;
setCalled = 0;
this[x] = 43;
assertEquals(0, getCalled);
assertEquals(1, setCalled);
getCalled = 0;
setCalled = 0;
super[x] = 15;
assertEquals(0, setCalled);
assertEquals(0, getCalled);
assertEquals(15, this[x]);
assertEquals(0, getCalled);
assertEquals(0, setCalled);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
setCalled = 0;
getCalled = 0;
assertEquals(42, this[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
getCalled = 0;
setCalled = 0;
this[x] = 43;
assertEquals(0, getCalled);
assertEquals(1, setCalled);
getCalled = 0;
setCalled = 0;
super[x] = 15;
assertEquals(0, setCalled);
assertEquals(0, getCalled);
assertEquals(15, this[x]);
assertEquals(0, getCalled);
assertEquals(0, setCalled);
}.toMethod(Derived.prototype);
new Derived().mSloppy();
new Derived().mStrict();
}());
(function TestKeyedNumericSetterNoProtoWalk() {
var x = 42;
function Base() {}
function Derived() {}
var getCalled;
var setCalled;
Derived.prototype = {
__proto__ : Base.prototype,
};
Object.defineProperty(Derived.prototype, x, {
get: function() { getCalled++; return 42; },
set: function(v) { setCalled++; }
});
Derived.prototype.mSloppy = function() {
setCalled = 0;
getCalled = 0;
assertEquals(42, this[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
getCalled = 0;
setCalled = 0;
this[x] = 43;
assertEquals(0, getCalled);
assertEquals(1, setCalled);
getCalled = 0;
setCalled = 0;
super[x] = 15;
assertEquals(0, setCalled);
assertEquals(0, getCalled);
assertEquals(15, this[x]);
assertEquals(0, getCalled);
assertEquals(0, setCalled);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
setCalled = 0;
getCalled = 0;
assertEquals(42, this[x]);
assertEquals(1, getCalled);
assertEquals(0, setCalled);
getCalled = 0;
setCalled = 0;
this[x] = 43;
assertEquals(0, getCalled);
assertEquals(1, setCalled);
getCalled = 0;
setCalled = 0;
super[x] = 15;
assertEquals(0, setCalled);
assertEquals(0, getCalled);
assertEquals(15, this[x]);
assertEquals(0, getCalled);
assertEquals(0, setCalled);
}.toMethod(Derived.prototype);
new Derived().mSloppy();
new Derived().mStrict();
}());
(function TestSetterDoesNotReconfigure() {
function Base() {}
function Derived() {}
Derived.prototype.mStrict = function (){
'use strict';
super.nonEnumConfig = 5;
var d1 = Object.getOwnPropertyDescriptor(this, 'nonEnumConfig');
assertEquals(5, d1.value);
assertTrue(d1.configurable);
assertFalse(d1.enumerable);
super.nonEnumNonConfig = 5;
var d1 = Object.getOwnPropertyDescriptor(this, 'nonEnumNonConfig');
assertEquals(5, d1.value);
assertFalse(d1.configurable);
assertFalse(d1.enumerable);
}.toMethod(Derived.prototype);
Derived.prototype.mSloppy = function (){
super.nonEnumConfig = 42;
var d1 = Object.getOwnPropertyDescriptor(this, 'nonEnumConfig');
assertEquals(42, d1.value);
assertTrue(d1.configurable);
assertFalse(d1.enumerable);
super.nonEnumNonConfig = 42;
var d1 = Object.getOwnPropertyDescriptor(this, 'nonEnumNonConfig');
assertEquals(42, d1.value);
assertFalse(d1.configurable);
assertFalse(d1.enumerable);
}.toMethod(Derived.prototype);
var d = new Derived();
Object.defineProperty(d, 'nonEnumConfig',
{ value : 0, enumerable : false, configurable : true, writable : true });
Object.defineProperty(d, 'nonEnumNonConfig',
{ value : 0, enumerable : false, configurable : false, writable : true });
d.mStrict();
d.mSloppy();
}());
(function TestKeyedSetterDoesNotReconfigure() {
var nonEnumConfig = 'nonEnumConfig';
var nonEnumNonConfig = 'nonEnumNonConfig';
function Base() {}
function Derived() {}
Derived.prototype = { __proto__: Base.prototype };
Derived.prototype.mStrict = function (){
'use strict';
super[nonEnumConfig] = 5;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumConfig);
assertEquals(5, d1.value);
assertTrue(d1.configurable);
assertFalse(d1.enumerable);
super[nonEnumNonConfig] = 5;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumNonConfig);
assertEquals(5, d1.value);
assertFalse(d1.configurable);
assertFalse(d1.enumerable);
}.toMethod(Derived.prototype);
Derived.prototype.mSloppy = function (){
super[nonEnumConfig] = 42;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumConfig);
assertEquals(42, d1.value);
assertTrue(d1.configurable);
assertFalse(d1.enumerable);
super[nonEnumNonConfig] = 42;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumNonConfig);
assertEquals(42, d1.value);
assertFalse(d1.configurable);
assertFalse(d1.enumerable);
}.toMethod(Derived.prototype);
var d = new Derived();
Object.defineProperty(d, nonEnumConfig,
{ value : 0, enumerable : false, configurable : true, writable : true });
Object.defineProperty(d, nonEnumNonConfig,
{ value : 0, enumerable : false, configurable : false, writable : true });
d.mStrict();
d.mSloppy();
}());
(function TestKeyedNumericSetterDoesNotReconfigure() {
var nonEnumConfig = 42;
var nonEnumNonConfig = 43;
function Base() {}
function Derived() {}
Derived.prototype = { __proto__: Base.prototype };
Derived.prototype.mStrict = function (){
'use strict';
super[nonEnumConfig] = 5;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumConfig);
assertEquals(5, d1.value);
assertTrue(d1.configurable);
assertFalse(d1.enumerable);
super[nonEnumNonConfig] = 5;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumNonConfig);
assertEquals(5, d1.value);
assertFalse(d1.configurable);
assertFalse(d1.enumerable);
}.toMethod(Derived.prototype);
Derived.prototype.mSloppy = function (){
super[nonEnumConfig] = 42;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumConfig);
assertEquals(42, d1.value);
assertTrue(d1.configurable);
assertFalse(d1.enumerable);
super[nonEnumNonConfig] = 42;
var d1 = Object.getOwnPropertyDescriptor(this, nonEnumNonConfig);
assertEquals(42, d1.value);
assertFalse(d1.configurable);
assertFalse(d1.enumerable);
}.toMethod(Derived.prototype);
var d = new Derived();
Object.defineProperty(d, nonEnumConfig,
{ value : 0, enumerable : false, configurable : true, writable : true });
Object.defineProperty(d, nonEnumNonConfig,
{ value : 0, enumerable : false, configurable : false, writable : true });
d.mStrict();
d.mSloppy();
}());
(function TestCountOperations() {
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
return this._x;
},
set x(v) {
this._x = v;
},
_x: 1
};
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 2
};
Derived.prototype.testCounts = function() {
assertEquals(2, this._x);
assertEquals(2, super.x);
super.x++;
assertEquals(3, super.x);
++super.x;
assertEquals(4, super.x);
assertEquals(4, super.x++);
assertEquals(5, super.x);
assertEquals(6, ++super.x);
assertEquals(6, super.x);
assertEquals(6, this._x);
super.x--;
assertEquals(5, super.x);
--super.x;
assertEquals(4, super.x);
assertEquals(4, super.x--);
assertEquals(3, super.x);
assertEquals(2, --super.x);
assertEquals(2, super.x);
assertEquals(2, this._x);
}.toMethod(Derived.prototype);
new Derived().testCounts();
}());
(function TestKeyedCountOperations() {
var x = 'x';
function Base() {}
Base.prototype = {
constructor: Base,
get x() {
return this._x;
},
set x(v) {
this._x = v;
},
_x: 1
};
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 2
};
Derived.prototype.testCounts = function() {
assertEquals(2, this._x);
assertEquals(2, super[x]);
super[x]++;
assertEquals(3, super[x]);
++super[x];
assertEquals(4, super[x]);
assertEquals(4, super[x]++);
assertEquals(5, super[x]);
assertEquals(6, ++super[x]);
assertEquals(6, super[x]);
assertEquals(6, this._x);
super[x]--;
assertEquals(5, super[x]);
--super[x];
assertEquals(4, super[x]);
assertEquals(4, super[x]--);
assertEquals(3, super[x]);
assertEquals(2, --super[x]);
assertEquals(2, super[x]);
assertEquals(2, this._x);
}.toMethod(Derived.prototype);
new Derived().testCounts();
}());
(function TestKeyedNumericCountOperations() {
var x = 42;
function Base() {}
Base.prototype = {
constructor: Base,
_x: 1
};
Object.defineProperty(Base.prototype, x, {
get: function() { return this._x; },
set: function(v) { this._x = v;; }
});
function Derived() {}
Derived.__proto__ = Base;
Derived.prototype = {
__proto__: Base.prototype,
constructor: Derived,
_x: 2
};
Derived.prototype.testCounts = function() {
assertEquals(2, this._x);
assertEquals(2, super[x]);
super[x]++;
assertEquals(3, super[x]);
++super[x];
assertEquals(4, super[x]);
assertEquals(4, super[x]++);
assertEquals(5, super[x]);
assertEquals(6, ++super[x]);
assertEquals(6, super[x]);
assertEquals(6, this._x);
super[x]--;
assertEquals(5, super[x]);
--super[x];
assertEquals(4, super[x]);
assertEquals(4, super[x]--);
assertEquals(3, super[x]);
assertEquals(2, --super[x]);
assertEquals(2, super[x]);
assertEquals(2, this._x);
}.toMethod(Derived.prototype);
new Derived().testCounts();
}());
(function TestSetterSuperNonWritable() {
function Base() {}
Object.defineProperty(Base.prototype, 'x', { value : 27, writable: false });
function Derived() {}
Derived.prototype = { __proto__: Base.prototype, constructor: Derived };
Derived.prototype.mSloppy = function() {
assertEquals(27, super.x);
assertEquals(27, this.x);
super.x = 10;
assertEquals(27, super.x);
assertEquals(27, this.x);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
assertEquals(27, super.x);
assertEquals(27, this.x);
var ex = null;
try { super.x = 10; } catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(27, super.x);
assertEquals(27, this.x);
}.toMethod(Derived.prototype);
new Derived().mSloppy();
new Derived().mStrict();
}());
(function TestSetterKeyedSuperNonWritable() {
var x = 'xyz';
function Base() {}
Object.defineProperty(Base.prototype, x, { value : 27, writable: false });
function Derived() {}
Derived.prototype = { __proto__: Base.prototype, constructor: Derived };
Derived.prototype.mSloppy = function() {
assertEquals(27, super[x]);
assertEquals(27, this[x]);
super[x] = 10;
assertEquals(27, super[x]);
assertEquals(27, this[x]);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
assertEquals(27, super[x]);
assertEquals(27, this[x]);
var ex = null;
try { super[x] = 10; } catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(27, super[x]);
assertEquals(27, this[x]);
}.toMethod(Derived.prototype);
new Derived().mSloppy();
new Derived().mStrict();
}());
(function TestSetterKeyedNumericSuperNonWritable() {
var x = 42;
function Base() {}
Object.defineProperty(Base.prototype, x, { value : 27, writable: false });
function Derived() {}
Derived.prototype = { __proto__: Base.prototype, constructor: Derived };
Derived.prototype.mSloppy = function() {
assertEquals(27, super[x]);
assertEquals(27, this[x]);
super[x] = 10;
assertEquals(27, super[x]);
assertEquals(27, this[x]);
}.toMethod(Derived.prototype);
Derived.prototype.mStrict = function() {
'use strict';
assertEquals(27, super[x]);
assertEquals(27, this[x]);
var ex = null;
try { super[x] = 10; } catch(e) { ex = e; }
assertTrue(ex instanceof TypeError);
assertEquals(27, super[x]);
assertEquals(27, this[x]);
}.toMethod(Derived.prototype);
new Derived().mSloppy();
new Derived().mStrict();
}());
function Subclass(base, constructor) {
var homeObject = {
__proto__: base.prototype,
constructor: constructor
};
constructor.__proto__ = base;
constructor.prototype = homeObject;
// not doing toMethod: home object is not required for
// super constructor calls.
return constructor;
}
(function TestSuperCall() {
var baseCalled = 0;
var derivedCalled = 0;
var derivedDerivedCalled = 0;
function Base() {
baseCalled++;
}
var Derived = Subclass(Base, function () {
super();
derivedCalled++;
});
assertEquals(Base, Base.prototype.constructor);
assertEquals(Base.prototype, Derived.prototype.__proto__);
baseCalled = 0;
derivedCalled = 0;
new Derived();
assertEquals(1, baseCalled);
assertEquals(1, derivedCalled);
var DerivedDerived = Subclass(Derived, function () {
super();
derivedDerivedCalled++;
});
baseCalled = 0;
derivedCalled = 0;
derivedDerivedCalled = 0;
new DerivedDerived();
assertEquals(1, baseCalled);
assertEquals(1, derivedCalled);
assertEquals(1, derivedDerivedCalled);
function Base2(v) {
this.fromBase = v;
}
var Derived2 = Subclass(Base2, function (v1, v2) {
super(v1);
this.fromDerived = v2;
});
var d = new Derived2("base", "derived");
assertEquals("base", d.fromBase);
assertEquals("derived", d.fromDerived);
function ImplicitSubclassOfFunction() {
super();
this.x = 123;
}
var o = new ImplicitSubclassOfFunction();
assertEquals(123, o.x);
var calls = 0;
function G() {
calls++;
}
function F() {
super();
}
F.__proto__ = G;
new F();
assertEquals(1, calls);
F.__proto__ = function() {};
new F();
assertEquals(1, calls);
}());
(function TestNewSuper() {
var baseCalled = 0;
var derivedCalled = 0;
function Base() {
baseCalled++;
this.x = 15;
}
var Derived = Subclass(Base, function() {
baseCalled = 0;
var b = new super();
assertEquals(1, baseCalled)
assertEquals(Base.prototype, b.__proto__);
assertEquals(15, b.x);
assertEquals(undefined, this.x);
derivedCalled++;
});
derivedCalled = 0;
new Derived();
assertEquals(1, derivedCalled);
}());
(function TestSuperCallErrorCases() {
function T() {
super();
}
T.__proto__ = null;
// Spec says ReferenceError here, but for other IsCallable failures
// we throw TypeError.
// Filed https://bugs.ecmascript.org/show_bug.cgi?id=3282
assertThrows(function() { new T(); }, TypeError);
function T1() {
var b = new super();
}
T1.__proto = null;
assertThrows(function() { new T1(); }, TypeError);
}());
(function TestSuperCallSyntacticRestriction() {
assertThrows(function() {
function C() {
var y;
super();
}
new C();
}, TypeError);
assertThrows(function() {
function C() {
super(this.x);
}
new C();
}, TypeError);
assertThrows(function() {
function C() {
super(this);
}
new C();
}, TypeError);
assertThrows(function() {
function C() {
super(1, 2, Object.getPrototypeOf(this));
}
new C();
}, TypeError);
assertThrows(function() {
function C() {
{ super(1, 2); }
}; new C();
}, TypeError);
assertThrows(function() {
function C() {
if (1) super();
}; new C();
}, TypeError);
function C1() {
'use strict';
super();
};
new C1();
function C2() {
; 'use strict';;;;;
super();
};
new C2();
function C3() {
; 'use strict';;;;;
// This is a comment.
super();
}
new C3();
}());