Frame-newTargetEval-02.js

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// Test that new.target is acceptably usable in RematerializedFrames.

gczeal(0);

load(libdir + "jitopts.js");

if (!jitTogglesMatch(Opts_Ion2NoOffthreadCompilation))

  quit();

withJitOptions(Opts_Ion2NoOffthreadCompilation, function () {

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

  var dbg = new Debugger;

  g.toggle = function toggle(d, expected) {

    if (d) {

      dbg.addDebuggee(g);

      var frame = dbg.getNewestFrame();

      assertEq(frame.implementation, "ion");

      // the arrow function will not be constructing, even though it has a

      // new.target value.

      assertEq(frame.constructing, false);

      // CONGRATS IF THIS FAILS! You, proud saviour, have made new.target parse

      // in debug frame evals (presumably by hooking up static scope walks).

      // Uncomment the assert below for efaust's undying gratitude.

      // Note that we use .name here because of CCW nonsense.

      assertEq(frame.eval('new.target').throw.unsafeDereference().name, "SyntaxError");

      // assertEq(frame.eval('new.target').return.unsafeDereference(), expected);

};

  g.eval("" + function f(d) { new g(d, g, 15); });

  g.eval("" + function g(d, expected) { (() => toggle(d, expected))(); });

  g.eval("(" + function test() {

    for (var i = 0; i < 5; i++)

      f(false);

    f(true);

  } + ")();");

});