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// Returning {throw:} from onEnterFrame when resuming inside a try block in a
// generator causes control to jump to the finally block.
let g = newGlobal({newCompartment: true});
g.eval(`
function* gen() {
try {
yield 0;
return "fail";
} finally {
return "ok"; // preempts exception unwinding
}
}
`)
let dbg = new Debugger(g);
dbg.onEnterFrame = frame => {
if (!("hits" in frame)) {
frame.hits = 1;
} else if (++frame.hits == 3) {
// First hit is when calling gen();
// second hit is resuming at the implicit initial yield;
// third hit is resuming inside the try block.
return {throw: "fit"};
}
};
let it = g.gen();
let result = it.next();
assertEq(result.done, false);
assertEq(result.value, 0);
result = it.next();
assertEq(result.done, true);
assertEq(result.value, "ok");