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// Test that Array.prototype.join doesn't call the [[HasProperty]] internal
// method of objects.
var log = [];
var array = [];
var proxy = new Proxy(array, new Proxy({}, {
get(t, trap, r) {
return (t, pk, ...more) => {
log.push(`${trap}:${String(pk)}`);
return Reflect[trap](t, pk, ...more);
};
}
}));
var result;
result = Array.prototype.join.call(proxy);
assertEqArray(log, [ "get:length" ]);
assertEq(result, "");
log.length = 0;
array.push(1);
result = Array.prototype.join.call(proxy);
assertEqArray(log, [ "get:length", "get:0" ]);
assertEq(result, "1");
log.length = 0;
array.push(2);
result = Array.prototype.join.call(proxy);
assertEqArray(log, [ "get:length", "get:0", "get:1" ]);
assertEq(result, "1,2");
if (typeof reportCompare === "function")
reportCompare(true, true);
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