bug-1997896.js - mozsearch

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function checkMarks(expected) {

  assertEq(getMarks().join(", "), expected.join(", "));

gczeal(0);

gczeal('CheckGrayMarking');

gc();

let g1 = newGlobal({newCompartment: true});

let g2 = newGlobal({newCompartment: true});

let makeAndReturnObject = `

  var o = {};

  addMarkObservers([o]);

  grayRoot()[0] = o;

o;

`;

let o1 = g1.eval(makeAndReturnObject);

let o2 = g2.eval(makeAndReturnObject);

let s = Symbol();

addMarkObservers([s]);

let i = getAtomMarkIndex(s);

o1.s = s;

o2.s = s;

o1 = undefined;

o2 = undefined;

s = undefined;

g1.o = undefined;

g2.o = undefined;

gc();

checkMarks(['gray', 'gray', 'gray']);

assertEq(getAtomMarkColor(g1, i), 'gray');

assertEq(getAtomMarkColor(g2, i), 'gray');

o1 = g1.eval('grayRoot()[0]');

checkMarks(['black', 'gray', 'black']);

assertEq(getAtomMarkColor(g1, i), 'black');

assertEq(getAtomMarkColor(g2, i), 'gray');

o2 = g2.eval('grayRoot()[0]');

checkMarks(['black', 'black', 'black']);

assertEq(getAtomMarkColor(g1, i), 'black');

assertEq(getAtomMarkColor(g2, i), 'black');

o1 = undefined;

schedulezone(this);

schedulezone(g1);

schedulezone('atoms');

startgc();

assertEq(gcstate(), 'NotActive');

checkMarks(['gray', 'black', 'black']);

assertEq(getAtomMarkColor(g1, i), 'gray');

assertEq(getAtomMarkColor(g2, i), 'black');