Function TestSealAndFreeze

deps/v8/test/mjsunit/harmony/private.js:341–351

(factory, freeze, isFrozen)

function TestSealAndFreeze(factory, freeze, isFrozen) {
  var sym = %CreatePrivateSymbol("private")
  var obj = factory();
  obj[sym] = 1
  freeze(obj)
  assertTrue(isFrozen(obj))
  obj[sym] = 2
  assertEquals(2, obj[sym])
  assertTrue(delete obj[sym])
  assertEquals(undefined, obj[sym])
}

var fastObj = () => {
  var obj = {}