breakpoint-multi-01.js

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// A single Debugger object can set multiple breakpoints at an instruction.

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

var dbg = Debugger(g);

var log = '';

dbg.onDebuggerStatement = function (frame) {

    log += 'D';

    function handler(i) {

        return {hit: function (frame) { log += '' + i; }};

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

    var s = f.script;

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

    for (var i = 0; i < 10; i++) {

        var bp = handler(i);

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

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

    assertEq(f.call().return, 42);

    log += 'X';

};

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

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

       "    return 42;\n" +  // line0 + 2

       "}\n" +

       "debugger;\n");

assertEq(log, 'D0123456789X');