Hello all,
I am having trouble trying to make Javascript array property accessors work properly in QtWebkit shipped with Qt 4.8. For example, if I do the following in the QtWebkit web inspector:
var _a = [1];
var a = [];
Object.defineProperty(a, '0', {
get: function(){
console.log('getter called');
return _a[0];
},
set: function(val){
console.log('setter called');
_a[0] = val;
}
})
it should define a numeric property ‘0’ on the array object, so that if I do:
console.log(a[0]);
it should call the defined getter and return the value of _a [ 0 ], that is, 1. All the latest webkit browsers (Chrome/Safari) return 1 as expected. But QtWebkit returns an `undefined`, without calling the getter at all. I discovered that setting
a.length = 1
solves the problem and the getters start working fine.
The problem however still remains in setters. When I do:
a[0] = 5;
the setter is never called as I don’t get the expected log – ‘setter called’ – on the console. Again, the latest webkit browsers (Chrome/Safari) do the right thing and call the defined setter as expected.
Does anyone know if there is a quick workaround this problem (like the one I accidentally discovered with getters) so that I could have array setters work properly? Or if this is really a deep nested bug, would it be fixed it Qt 5?
Thanks a lot in advance.
Prashant
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