onEnterFrame-generator-07.js

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// Bug 1561935. Test interaction between debug traps for step mode and

// DebugAfterYield.

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

g.eval('function* f() { yield 1; yield 2; }');

let dbg = Debugger(g);

let genObj = null;

let hits = 0;

dbg.onEnterFrame = frame => {

    // The first time onEnterFrame fires, there is no generator object, so

    // there's nothing to test. The generator object doesn't exist until

    // JSOP_GENERATOR is reached, right before the initial yield.

    if (genObj === null) {

        // Trigger step mode.

        frame.onStep = function() {};

    } else {

        dbg.removeDebuggee(g);

        hits++;

};

genObj = g.f();

for (let x of genObj) {}

assertEq(hits, 1);