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// |jit-test| skip-if: !hasFunction["gczeal"] || helperThreadCount() === 0
const propsPerObject = 16;
const poolSize = 500;
// Long-lived objects, each holding several independently-allocated value
// objects reachable only via the holder's own slots (no other reference).
let pool = [];
for (let i = 0; i < poolSize; i++) {
let holder = {};
for (let j = 0; j < propsPerObject; j++) {
holder["p" + j] = {tag: i * 1000 + j};
}
pool.push(holder);
}
// Inflate the heap so a full concurrent mark takes a while, widening the
// chance that it's still in progress while we convert pool objects below.
let filler = [];
for (let i = 0; i < 100000; i++) {
filler.push({a: i, b: i + 1, c: [i, i]});
}
gczeal(0);
gczeal(16, 500); // ConcurrentMarking
gczeal(15); // CheckHeapAfterGC
gczeal(27); // ConcurrentMarkingDelays
// Deleting a non-last property forces NativeObject::toDictionaryMode.
const mid = propsPerObject >> 1;
for (let i = 0; i < poolSize; i++) {
delete pool[i]["p" + mid];
}
gc();
gc();
let bad = 0;
for (let holder of pool) {
for (let k of Object.keys(holder)) {
let v = holder[k];
if (typeof v !== "object" || v === null || typeof v.tag !== "number") {
bad++;
}
}
}
if (bad > 0) {
throw new Error("corruption detected in " + bad + " properties");
}