The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/debug/breakpoint-11.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,40 @@
     1.4 +// Setting a breakpoint in a generator function works, and we can
     1.5 +// traverse the stack and evaluate expressions in the context of older
     1.6 +// generator frames.
     1.7 +
     1.8 +var g = newGlobal();
     1.9 +var dbg = Debugger(g);
    1.10 +dbg.onDebuggerStatement = function (frame) {
    1.11 +    function hit(frame) {
    1.12 +        assertEq(frame.generator, true);
    1.13 +        assertEq(frame.older.generator, true);
    1.14 +        frame.older.eval("q += 16");
    1.15 +    }
    1.16 +
    1.17 +    var s = frame.script;
    1.18 +    var offs = s.getLineOffsets(g.line0 + 9);
    1.19 +    for (var i = 0; i < offs.length; i++)
    1.20 +        s.setBreakpoint(offs[i], {hit: hit});
    1.21 +};
    1.22 +
    1.23 +g.eval("line0 = Error().lineNumber;\n" +
    1.24 +       "function* g(x) {\n" +   // + 1
    1.25 +       "    var q = 10;\n" +    // + 2
    1.26 +       "    yield* x;\n" +      // + 3
    1.27 +       "    return q;\n" +      // + 4
    1.28 +       "}\n" +                  // + 5
    1.29 +       "function* range(n) {\n" + // + 6
    1.30 +       "    debugger;\n" +      // + 7
    1.31 +       "    for (var i = 0; i < n; i++)\n" + // + 8
    1.32 +       "        yield i;\n" +   // + 9  <-- breakpoint
    1.33 +       "    return;\n" + // so that line 9 only has the yield
    1.34 +       "}");
    1.35 +
    1.36 +g.eval("var iter = g(range(2))");
    1.37 +g.eval("var first = iter.next().value");
    1.38 +g.eval("var second = iter.next().value");
    1.39 +g.eval("var third = iter.next().value");
    1.40 +
    1.41 +assertEq(g.first, 0);
    1.42 +assertEq(g.second, 1);
    1.43 +assertEq(g.third, 42);