On Jul 2, 1:48 pm, [EMAIL PROTECTED] wrote:
> Hi guys,
>
> I'm trying to figure out if this failing piece of code fails due to a
> bug in Rhino. The short of it is that we have a global object (in this
> case an instance of TestBean) that has a read-only property named
> "blah"; we execute some JS code which attempts to define a function
> named "blah" (and does so successfully, I think), but when the code
> attempts to call this new function, Rhino picks up the read-only
> "blah" property on the global object (rather than the function) --
> throwing a TypeError.
>
> The real-world application of this is in HtmlUnit: the global object
> in an HTML document is the window, which has (for example) a read-only
> "navigator" property. However, you are allowed to define a function
> named "navigator" and call it (hiding the real "navigator" property).
>
> Have a look at the code below and let me know what you think... Should
> this work in Rhino? Is it a bug? Is it misconfiguration?
>
> Take care,
>
> Daniel
>
> public class TestBean extends ScriptableObject {
> private Object blah = "a";
> public Object getBlah() {
> return blah;
> }
> @Override
> public String getClassName() {
> return "TestBean";
> }
>
> }
>
> public void testPropertyReplacement() throws Exception {
> Context cx = ContextFactory.getGlobal().enterContext();
> try {
> ScriptableObject scope = new TestBean();
> cx.initStandardObjects(scope);
> Method getter = TestBean.class.getDeclaredMethod("getBlah");
> scope.defineProperty("blah", null, getter, null,
> ScriptableObject.EMPTY);
> String source =
> "function blah() { return 'x'; }\n" +
> "blah();\n";
> cx.evaluateString(scope, source, "source", 1, null);
> } finally {
> Context.exit();
> }
>
> }
Yep, I think Rhino's behavior should be different: for an assignment
to a property with only a getter defined, the assignment should cancel
out the getter.
I've created https://bugzilla.mozilla.org/show_bug.cgi?id=443491 and
have a fix.
--Norris
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