Environment-parent-01.js

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// The objects on the environment chain are all Debugger.Environment objects.

// The environment chain ends in null.

var g = newGlobal({newCompartment: true})

g.eval("function f(a) { return function (b) { return function (c) { h(); return a + b + c; }; }; }");

var dbg = Debugger(g);

var hits = 0;

g.h = function () {

    var n = 0;

    for (var env = dbg.getNewestFrame().environment; env !== null; env = env.parent) {

        n++;

        assertEq(env instanceof Debugger.Environment, true);

    assertEq(n >= 4, true);

    hits++;

};

assertEq(g.f(5)(7)(9), 21);

assertEq(hits, 1);