Frame-eval-07.js - mozsearch

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// test frame.eval in non-top frames

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

var N = g.N = 12; // must be even

assertEq(N % 2, 0);

var dbg = new Debugger(g);

var hits = 0;

dbg.onDebuggerStatement = function (frame) {

    var n = frame.eval("n").return;

    if (n === 0) {

        for (var i = 0; i <= N; i++) {

            assertEq(frame.type, 'call');

            assertEq(frame.callee.name, i % 2 === 0 ? 'even' : 'odd');

            assertEq(frame.eval("n").return, i);

            frame = frame.older;

        assertEq(frame.type, 'call');

        assertEq(frame.callee.name, undefined);

        frame = frame.older;

        assertEq(frame.type, 'eval');

        hits++;

};

var result = g.eval("(" + function () {

        function odd(n) { return n > 0 && !even(n - 1); }

        function even(n) { debugger; return n == 0 || !odd(n - 1); }

        return even(N);

    } + ")();");

assertEq(result, true);

assertEq(hits, 1);