blob: 09d66d7c84a3d85ac4268774c44f393c2ff736da (
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// In .onPop for the "initial yield" of a generator, while the generator frame
// is on the stack, the generator object's .next() method throws.
let g = newGlobal({newCompartment: true});
g.eval(`
function* f() {
return "ok";
}
`);
let hits = 0;
let dbg = new Debugger;
let gw = dbg.addDebuggee(g);
dbg.onEnterFrame = frame => {
dbg.onEnterFrame = undefined; // Trigger only once.
frame.onPop = completion => {
// Initial yield.
let genObj = completion.return;
assertEq(genObj.class, "Generator");
let result = frame.evalWithBindings("genObj.next()", {genObj});
assertEq(result.throw.class, "TypeError");
assertEq(result.throw.getProperty("message").return,
"already executing generator");
hits++;
};
};
g.f();
assertEq(hits, 1);
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