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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// Test that HeapSnapshot.prototype.takeCensus finds GC roots that are on the
// stack.
//
// Ported from js/src/jit-test/tests/debug/Memory-takeCensus-04.js
function run_test() {
const g = newGlobal();
const dbg = new Debugger(g);
g.eval(`
function withAllocationMarkerOnStack(f) {
(function () {
var onStack = allocationMarker();
f();
}());
}
`);
equal(
"AllocationMarker" in saveHeapSnapshotAndTakeCensus(dbg).objects,
false,
"There shouldn't exist any allocation markers in the census."
);
let allocationMarkerCount;
g.withAllocationMarkerOnStack(() => {
const census = saveHeapSnapshotAndTakeCensus(dbg);
allocationMarkerCount = census.objects.AllocationMarker.count;
});
equal(
allocationMarkerCount,
1,
"Should have one allocation marker in the census, because there " +
"was one on the stack."
);
do_test_finished();
}
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