blob: 90bc51ec03d55f352775a9a9728a7a48e31080ff [file] [log] [blame]
// 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: --allow-natives-syntax
(function TestBasics() {
var object = {
method() {
return 42;
}
};
assertEquals(42, object.method());
})();
(function TestThis() {
var object = {
method() {
assertEquals(object, this);
}
};
object.method();
})();
(function TestDescriptor() {
var object = {
method() {
return 42;
}
};
var desc = Object.getOwnPropertyDescriptor(object, 'method');
assertTrue(desc.enumerable);
assertTrue(desc.configurable);
assertTrue(desc.writable);
assertEquals('function', typeof desc.value);
assertEquals(42, desc.value());
})();
(function TestProto() {
var object = {
method() {}
};
assertEquals(Function.prototype, Object.getPrototypeOf(object.method));
})();
(function TestNotConstructable() {
var object = {
method() {}
};
assertThrows(function() {
new object.method;
});
})();
(function TestFunctionName() {
var object = {
method() {},
1() {},
2.0() {}
};
var f = object.method;
assertEquals('method', f.name);
var g = object[1];
assertEquals('1', g.name);
var h = object[2];
assertEquals('2', h.name);
})();
(function TestNoBinding() {
var method = 'local';
var calls = 0;
var object = {
method() {
calls++;
assertEquals('local', method);
}
};
object.method();
assertEquals(1, calls);
})();
(function TestNoPrototype() {
var object = {
method() {}
};
var f = object.method;
assertFalse(f.hasOwnProperty('prototype'));
assertEquals(undefined, f.prototype);
f.prototype = 42;
assertEquals(42, f.prototype);
})();
(function TestNoRestrictedPropertiesStrict() {
var obj = {
method() { "use strict"; }
};
assertFalse(obj.method.hasOwnProperty("arguments"));
assertThrows(function() { return obj.method.arguments; }, TypeError);
assertThrows(function() { obj.method.arguments = {}; }, TypeError);
assertFalse(obj.method.hasOwnProperty("caller"));
assertThrows(function() { return obj.method.caller; }, TypeError);
assertThrows(function() { obj.method.caller = {}; }, TypeError);
})();
(function TestNoRestrictedPropertiesSloppy() {
var obj = {
method() {}
};
assertFalse(obj.method.hasOwnProperty("arguments"));
assertThrows(function() { return obj.method.arguments; }, TypeError);
assertThrows(function() { obj.method.arguments = {}; }, TypeError);
assertFalse(obj.method.hasOwnProperty("caller"));
assertThrows(function() { return obj.method.caller; }, TypeError);
assertThrows(function() { obj.method.caller = {}; }, TypeError);
})();
(function TestToString() {
var object = {
method() { 42; }
};
assertEquals('method() { 42; }', object.method.toString());
})();
(function TestOptimized() {
var object = {
method() { return 42; }
};
assertEquals(42, object.method());
assertEquals(42, object.method());
%OptimizeFunctionOnNextCall(object.method);
assertEquals(42, object.method());
assertFalse(object.method.hasOwnProperty('prototype'));
})();
///////////////////////////////////////////////////////////////////////////////
var GeneratorFunction = function*() {}.__proto__.constructor;
var GeneratorPrototype = Object.getPrototypeOf(function*() {}).prototype;
function assertIteratorResult(value, done, result) {
assertEquals({value: value, done: done}, result);
}
(function TestGeneratorBasics() {
var object = {
*method() {
yield 1;
}
};
var g = object.method();
assertIteratorResult(1, false, g.next());
assertIteratorResult(undefined, true, g.next());
})();
(function TestGeneratorThis() {
var object = {
*method() {
yield this;
}
};
var g = object.method();
assertIteratorResult(object, false, g.next());
assertIteratorResult(undefined, true, g.next());
})();
(function TestGeneratorSymbolIterator() {
var object = {
*method() {}
};
var g = object.method();
assertEquals(g, g[Symbol.iterator]());
})();
(function TestGeneratorDescriptor() {
var object = {
*method() {
yield 1;
}
};
var desc = Object.getOwnPropertyDescriptor(object, 'method');
assertTrue(desc.enumerable);
assertTrue(desc.configurable);
assertTrue(desc.writable);
assertEquals('function', typeof desc.value);
var g = desc.value();
assertIteratorResult(1, false, g.next());
assertIteratorResult(undefined, true, g.next());
})();
(function TestGeneratorPrototypeDescriptor() {
var object = {
*method() {}
};
var desc = Object.getOwnPropertyDescriptor(object.method, 'prototype');
assertFalse(desc.enumerable);
assertFalse(desc.configurable);
assertTrue(desc.writable);
assertEquals(GeneratorPrototype, Object.getPrototypeOf(desc.value));
})();
(function TestGeneratorProto() {
var object = {
*method() {}
};
assertEquals(GeneratorFunction.prototype,
Object.getPrototypeOf(object.method));
})();
(function TestGeneratorNotConstructable() {
var object = {
*method() {
yield 1;
}
};
assertThrows(()=>new object.method());
})();
(function TestGeneratorName() {
var object = {
*method() {},
*1() {},
*2.0() {}
};
var f = object.method;
assertEquals('method', f.name);
var g = object[1];
assertEquals('1', g.name);
var h = object[2];
assertEquals('2', h.name);
})();
(function TestGeneratorNoBinding() {
var method = 'local';
var calls = 0;
var object = {
*method() {
calls++;
assertEquals('local', method);
}
};
var g = object.method();
assertIteratorResult(undefined, true, g.next());
assertEquals(1, calls);
})();
(function TestGeneratorToString() {
var object = {
*method() { yield 1; }
};
assertEquals('*method() { yield 1; }', object.method.toString());
})();
(function TestProtoName() {
var object = {
__proto__() {
return 1;
}
};
assertEquals(Object.prototype, Object.getPrototypeOf(object));
assertEquals(1, object.__proto__());
})();
(function TestProtoName2() {
var p = {};
var object = {
__proto__() {
return 1;
},
__proto__: p
};
assertEquals(p, Object.getPrototypeOf(object));
assertEquals(1, object.__proto__());
})();