Debugger-multi-03.js

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// Q: But who shall debug the debuggers?  A: jimb

var log = '';

function addDebug(g, id) {

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

    debuggerGlobal.debuggee = g;

    debuggerGlobal.id = id;

    debuggerGlobal.print = function (s) { log += s; };

    debuggerGlobal.eval(

        'var dbg = new Debugger(debuggee);\n' +

        'dbg.onDebuggerStatement = function () { print(id); debugger; print(id); };\n');

    return debuggerGlobal;

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

var top = base;

for (var i = 0; i < 8; i++)  // why have 2 debuggers when you can have 8

    top = addDebug(top, i);

base.eval("debugger;");

assertEq(log, '0123456776543210');