// ToNumber(value) is executed for OOB writes when using a direct assignment. function plainSet() { var callCount = 0; var value = { valueOf() { callCount++; return 1; } }; var N = 100; var ta = new Int32Array(0); for (var i = 0; i < N; ++i) ta[0] = value assertEq(callCount, N); } for (var i = 0; i < 2; ++i) plainSet(); // ToNumber(value) is executed for OOB writes when using Reflect.set(...). function reflectSet() { var callCount = 0; var value = { valueOf() { callCount++; return 1; } }; var N = 100; var ta = new Int32Array(0); for (var i = 0; i < N; ++i) assertEq(Reflect.set(ta, 0, value), true); assertEq(callCount, N); } for (var i = 0; i < 2; ++i) reflectSet(); // ToNumber(value) is not executed for OOB writes when using Reflect.defineProperty(...). function defineProp() { var callCount = 0; var value = { valueOf() { callCount++; return 1; } }; var desc = {value, writable: true, enumerable: true, configurable: true}; var N = 100; var ta = new Int32Array(0); for (var i = 0; i < N; ++i) assertEq(Reflect.defineProperty(ta, 0, desc), false); assertEq(callCount, 0); } for (var i = 0; i < 2; ++i) defineProp(); if (typeof reportCompare === "function") reportCompare(true, true);