breakpoint-gc-02.js

Enable keyboard shortcuts

// A Debugger with live breakpoints is live.

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

g.eval("var line0 = Error().lineNumber;\n" +

       "function f() {\n" +     // line0 + 1

       "    return 2;\n" +      // line0 + 2

       "}\n");

var N = 4;

var hits = 0;

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

    var dbg = Debugger(g);

    dbg.onDebuggerStatement = function (frame) {

        var handler = {hit: function () { hits++; }};

        var s = frame.eval("f").return.script;

        var offs = s.getLineOffsets(g.line0 + 2);

        for (var j = 0; j < offs.length; j++)

            s.setBreakpoint(offs[j], handler);

};

    g.eval('debugger;');

    dbg.onDebuggerStatement = undefined;

    dbg = null;

gc();

assertEq(g.f(), 2);

assertEq(hits, N);