onEnterFrame-async-resumption-07.js (1873B)
1 // A Debugger can't force-return from the first onEnterFrame for an async generator. 2 3 ignoreUnhandledRejections(); 4 5 let g = newGlobal({newCompartment: true}); 6 g.eval(`async function* f(x) { await x; return "ponies"; }`); 7 8 let dbg = new Debugger; 9 dbg.uncaughtExceptionHook = exc => {}; // ignore errors 10 let gw = dbg.addDebuggee(g); 11 let hits = 0; 12 let resumption = undefined; 13 14 dbg.onEnterFrame = frame => { 15 dbg.onEnterFrame = undefined; 16 assertEq(frame.type, "call"); 17 assertEq(frame.callee.name, "f"); 18 frame.onPop = completion => { 19 hits++; 20 }; 21 22 // Try to force-return. It's too early. This results in a call to the 23 // uncaughtExceptionHook but is otherwise ignored. 24 return {return: "rainbows"}; 25 }; 26 let it = g.f(0); // onPop #1: the initial yield 27 assertEq(hits, 1); 28 let p = it.next(); // onPop #2: await x 29 assertEq(hits, 2); 30 drainJobQueue(); // onPop #3: return "ponies", #4: the final yield 31 assertEq(hits, 4); 32 33 let pw = gw.makeDebuggeeValue(p); 34 assertEq(pw.isPromise, true); 35 assertEq(pw.promiseState, "fulfilled"); 36 assertEq(pw.promiseValue.getProperty("value").return, "ponies"); 37 assertEq(pw.promiseValue.getProperty("done").return, true); 38 39 // ---- 40 41 g.eval(`async function* f2(x) { await x; return "moar ponies"; }`); 42 43 let savedAsyncGen = undefined; 44 dbg.onEnterFrame = frame => { 45 dbg.onEnterFrame = undefined; 46 assertEq(frame.type, "call"); 47 assertEq(frame.callee.name, "f2"); 48 frame.onPop = completion => { 49 if (savedAsyncGen === undefined) { 50 savedAsyncGen = completion.return; 51 } 52 }; 53 }; 54 let it2 = g.f2(123); 55 let p2 = it2.next(); 56 drainJobQueue(); 57 58 let pw2 = gw.makeDebuggeeValue(p2); 59 assertEq(pw2.isPromise, true); 60 assertEq(pw2.promiseState, "fulfilled"); 61 assertEq(pw2.promiseValue.getProperty("value").return, "moar ponies"); 62 assertEq(pw2.promiseValue.getProperty("done").return, true);