Object-defineProperty-10.js (325B)
1 // defineProperty can make a non-configurable writable property non-writable 2 3 load(libdir + "asserts.js"); 4 var g = newGlobal({newCompartment: true}); 5 var dbg = new Debugger; 6 var gw = dbg.addDebuggee(g); 7 gw.defineProperty("p", {writable: true, value: 1}); 8 gw.defineProperty("p", {writable: false}); 9 g.p = 4; 10 assertEq(g.p, 1);