iterator-indices-3.js

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function test(o, deleter) {

  var result = 0;

  for (var s in o) {

    if (!o.hasOwnProperty(s)) { continue; }

    result += o[s];

    deleter(o);

  return result;

with ({}) {}

// Ion-compile |test| with a megamorphic getprop and a generic call.

for (var i = 0; i < 2000; i++) {

  var obj = {};

  obj["x" + i] = 1;

  test(obj, () => 1);

  test(obj, () => 2);

assertEq(test({x: 1, y: 2}, (o) => delete o.y), 1);

assertEq(test([1,2], (o) => delete o[1]), 1);

assertEq(test([1,2], (o) => {o.length = 0}), 1);

assertEq(test({x: 1, y: 2, z: 3}, (o) => delete o.y), 4);

assertEq(test([1,2,3], (o) => delete o[1]), 4);

assertEq(test([1,2,3,4], (o) => {o.length = 2}), 3);

assertEq(test({x: 1, y: 2, z: 3}, (o) => delete o.x), 6);

assertEq(test([1,2,3], (o) => delete o[0]), 6);

assertEq(test([1], (o) => {o.length = 0}), 1);