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);