onEnterFrame-generator-05.js

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// When resuming a generator triggers one Debugger's onEnterFrame handler,

// all Debuggers' Debugger.Frames become usable at once.

load(libdir + "asserts.js");

let g = newGlobal({newCompartment: true});

g.eval(`

    function* f() {

       yield 1;

`);

let dbg1 = new Debugger(g);

let dbg2 = new Debugger(g);

let hits = 0;

let savedFrame1;

let savedFrame2;

dbg1.onEnterFrame = frame => {

    if (savedFrame1 === undefined) {

        savedFrame1 = frame;

        savedFrame2 = dbg2.getNewestFrame();

    } else {

        hits++;

        assertEq(savedFrame1, frame);

        for (let f of [savedFrame2, savedFrame1]) {

            assertEq(f.type, "call");

            assertEq(f.callee.name, "f");

};

let values = [...g.f()];

assertEq(hits, 2);

assertDeepEq(values, [1]);