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// The debugger can't force return from a generator before the initial yield.
let g = newGlobal({newCompartment: true});
g.eval(`
function* f() {
yield 1;
}
`);
let dbg = new Debugger(g);
let steps = 0;
let uncaughtErrorsReported = 0;
dbg.onEnterFrame = frame => {
assertEq(frame.callee.name, "f");
dbg.onEnterFrame = undefined;
frame.onStep = () => {
steps++;
// This test case never resumes the generator after the initial
// yield. Therefore the initial yield has not happened yet. So this
// force-return will be an error.
return {return: "ponies"};
};
// Having an onPop hook exercises some assertions that don't happen
// otherwise.
frame.onPop = completion => {};
};
dbg.uncaughtExceptionHook = (reason) => {
// When onEnterFrame returns an invalid resumption value,
// the error is reported here.
assertEq(reason instanceof TypeError, true);
uncaughtErrorsReported++;
return undefined; // Cancel the force-return. Let the debuggee continue.
};
let result = g.f();
assertEq(result instanceof g.f, true);
assertEq(steps > 0, true);
assertEq(uncaughtErrorsReported, steps);
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