xref: /external/chromium_org/v8/test/webkit/dfg-convert-this-dom-window.js

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
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// modification, are permitted provided that the following conditions
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description(
"This tests that we can correctly call Function.prototype.call in the DFG, but more precisely, that we give the correct this object in case it is undefined"
);

var myObject = { call: function() { return [myObject, "myObject.call"] } };
var myFunction = function (arg1) { return [this, "myFunction", arg1] };
var myFunctionWithCall = function (arg1) { return [this, "myFunctionWithCall", arg1] };
myFunctionWithCall.call = function (arg1) { return [this, "myFunctionWithCall.call", arg1] };
Function.prototype.aliasedCall = Function.prototype.call;

for (var i = 0; i < 100; ++i) {
    shouldBe("myObject.call()", '[myObject, "myObject.call"]');
    shouldBe("myFunction('arg1')", '[this, "myFunction", "arg1"]');
    shouldBe("myFunction.call(myObject, 'arg1')", '[myObject, "myFunction", "arg1"]');
    shouldBe("myFunction.call()", '[this, "myFunction", undefined]');
    shouldBe("myFunction.call(null)", '[this, "myFunction", undefined]');
    shouldBe("myFunction.call(undefined)", '[this, "myFunction", undefined]');
    shouldBe("myFunction.aliasedCall(myObject, 'arg1')", '[myObject, "myFunction", "arg1"]');
    shouldBe("myFunction.aliasedCall()", '[this, "myFunction", undefined]');
    shouldBe("myFunction.aliasedCall(null)", '[this, "myFunction", undefined]');
    shouldBe("myFunction.aliasedCall(undefined)", '[this, "myFunction", undefined]');
    shouldBe("myFunctionWithCall.call(myObject, 'arg1')", '[myFunctionWithCall, "myFunctionWithCall.call", myObject]');
    shouldBe("myFunctionWithCall.aliasedCall(myObject, 'arg1')", '[myObject, "myFunctionWithCall", "arg1"]');
}