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/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
/* Create an object with a JavaScript setter. */
var firstSetterCount;
var o = { w:2, set x(v) { firstSetterCount++; } };
/*
* Put the object in dictionary mode, so that JSObject::putProperty will
* mutate its shapes instead of creating new ones.
*/
delete o.w;
/* A stock watcher function. */
var watcherCount;
function watcher(id, oldval, newval) { watcherCount++; return newval; }
/*
* Place a watchpoint on the property. The property's shape now has the
* watchpoint setter, with the original setter saved in the watchpoint
* structure.
*/
o.watch('x', watcher);
/*
* Replace the setter with a new setter. The shape should get updated to
* refer to the new setter, and then the watchpoint setter should be
* re-established.
*/
var secondSetterCount;
Object.defineProperty(o, 'x', { set: function () { secondSetterCount++ } });
/*
* Assign to the property. This should trigger the watchpoint and the new setter.
*/
watcherCount = firstSetterCount = secondSetterCount = 0;
o.x = 3;
assertEq(watcherCount, 1);
assertEq(firstSetterCount, 0);
assertEq(secondSetterCount, 1);
reportCompare(true, true);
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