js/src/jit-test/tests/debug/Frame-callee-02.js


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// Frame.prototype.callee for a generator function frame.

load(libdir + "asserts.js");

var g = newGlobal({ newCompartment: true });
var dbg = new Debugger(g);
g.eval(`
function* f() {}
`);

const fObj = dbg.makeGlobalObjectReference(g).makeDebuggeeValue(g.f);
let frame;
let callee;
dbg.onEnterFrame = function(f) {
  frame = f;
  callee = frame.callee;
};

const it = g.f();

assertEq(frame instanceof Debugger.Frame, true);
assertEq(callee instanceof Debugger.Object, true);
assertEq(callee, fObj);
assertEq(frame.callee, callee);

const lastFrame = frame;
const lastCallee = callee;
frame = null;
callee = null;

it.next();

assertEq(frame, lastFrame);
assertEq(callee, lastCallee);

// The frame has finished evaluating, so the callee is no longer accessible.
assertThrowsInstanceOf(() => frame.callee, Error);