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// Test for an interrupt callback that calls Debugger.getNewestFrame during generator
// resume.
var g = newGlobal({newCompartment: true});
g.eval(`
var keep;
function* gen() {
{
let x = 1;
const capture = () => x; // gives the block its own environment object
keep = capture;
while (true) {
yield x;
}
}
}
var it = gen();
it.next(); // suspend inside the block
for (var i = 0; i < 2000; i++) {
it.next();
}
`);
var dbg = null;
var rearm = 0;
var observed = 0;
var bad = 0;
setInterruptCallback(function () {
if (!dbg) {
// Add the debuggee now, while the generator may be mid-resume.
dbg = new Debugger(g);
}
var f = dbg.getNewestFrame();
if (f) {
observed++;
if (f.type === "call" && f.callee.name === "gen" && f.offset === 0) {
bad++;
}
}
if (rearm > 0) {
rearm--;
interruptIf(true);
}
return true;
});
g.arm = function () {
rearm = 8;
interruptIf(true);
};
g.eval(`
for (var i = 0; i < 200; i++) {
arm();
it.next();
}
`);
assertEq(bad, 0);
assertEq(observed > 50, true);