breakpoint-multi-02.js

Enable keyboard shortcuts

// After clearing one breakpoint, another breakpoint at the same instruction still works.

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

var dbg = Debugger(g);

var script = null;

var handlers = [];

dbg.onDebuggerStatement = function (frame) {

    function handler(i) {

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

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

    var s = f.script;

    if (script === null)

        script = s;

    else

        assertEq(s, script);

    var offs = s.getLineOffsets(g.line0 + 3);

    for (var i = 0; i < 3; i++) {

        handlers[i] = handler(i);

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

            s.setBreakpoint(offs[j], handlers[i]);

};

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

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

       "    log += 'x';\n" +    // line0 + 2

       "    log += 'y';\n" +    // line0 + 3

       "}\n" +

       "debugger;\n");

assertEq(handlers.length, 3);

g.log = '';

g.f();

assertEq(g.log, 'x012y');

script.clearBreakpoint(handlers[0]);

g.log = '';

g.f();

assertEq(g.log, 'x12y');