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jscript: Pass undefined 'this' instead of null in ES5 mode.
Based on the spec (ECMA-262 5.1 Edition 11.2.3.7), whereas the ES3 spec says it gets replaced with null. Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com> Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -250,13 +250,18 @@ void detach_arguments_object(jsdisp_t *args_disp)
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HRESULT Function_invoke(jsdisp_t *func_this, IDispatch *jsthis, WORD flags, unsigned argc, jsval_t *argv, jsval_t *r)
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{
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FunctionInstance *function;
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jsval_t vthis;
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TRACE("func %p this %p\n", func_this, jsthis);
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assert(is_class(func_this, JSCLASS_FUNCTION));
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function = function_from_jsdisp(func_this);
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return function->vtbl->call(function->dispex.ctx, function, jsthis ? jsval_disp(jsthis) : jsval_null(), flags, argc, argv, r);
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if(jsthis)
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vthis = jsval_disp(jsthis);
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else
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vthis = function->dispex.ctx->version < SCRIPTLANGUAGEVERSION_ES5 ? jsval_null() : jsval_undefined();
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return function->vtbl->call(function->dispex.ctx, function, vthis, flags, argc, argv, r);
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}
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static HRESULT Function_get_length(script_ctx_t *ctx, jsdisp_t *jsthis, jsval_t *r)
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@ -1800,13 +1800,15 @@ sync_test("substituted this", function() {
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}
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var r = ((function() { var f = Object.prototype.toString; return (function() { return f(); }); })())();
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todo_wine.
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ok(r === "[object Undefined]", "detached scope Object.toString returned " + r);
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var r = (function() { this.f = Object.prototype.toString; return this.f(); })();
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todo_wine.
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ok(r === "[object Window]", "Object.toString returned " + r);
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var r = (function() { var f = Object.prototype.toString; return f(); })();
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ok(r === "[object Undefined]", "Object.toString returned " + r);
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var r = ((function() { return (function() { return this; }); })())();
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ok(r === window, "detached scope this = " + r);
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});
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