bug-2049418.js - mozsearch

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gczeal(0);

const gB = newGlobal({newCompartment: true});

const gA = newGlobal({newCompartment: true});

const gC = newGlobal({newCompartment: true});

const gD = newGlobal({newCompartment: true});

const NT = 64;

const NFILLER = 200000;

gC.evaluate(`

  var pairs = [];

  for (let i = 0; i < ${NT}; i++) pairs.push(transplantableObject());

  var objects = pairs.map(p => p.object);

`);

gB.evaluate(`

  var savedWRs = [];

  function setup(targets) {

    for (let i = 0; i < targets.length; i++) savedWRs.push(new WeakRef(targets[i]));

`);

gB.setup(gC.objects);

gA.evaluate(`

  function filler(n) {

    let keep = [];

    for (let i = 0; i < n; i++) { let o = {i}; keep.push(o); new WeakRef(o); }

    return keep;

`);

finishgc();

schedulezone(gB);

gc("zone");

let keepA = gA.filler(NFILLER);

gB.eval("savedWRs = undefined; setup = undefined;");

finishgc();

minorgc();

schedulezone(gA);

schedulezone(gB);

startgc(1);

let transplanted = false;

while (gcstate() !== "NotActive") {

  gcslice(10000, {dontStart: true});

  if (!transplanted && gcstate() === "Sweep" && gcstate(gA) === "Sweep" && gcstate(gB) === "MarkBlackOnly") {

    for (let k = 0; k < NT; k++) gC.pairs[k].transplant(gD);

    transplanted = true;

minorgc();