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/Environment-inspectable-01.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,78 @@
     1.4 +// Environments are only inspectable while their globals are debuggees.
     1.5 +
     1.6 +load(libdir + 'asserts.js');
     1.7 +
     1.8 +var g1 = newGlobal();
     1.9 +var g2 = newGlobal();
    1.10 +g2.g1 = g1;
    1.11 +g1.g2 = g2;
    1.12 +
    1.13 +g1.eval('function f(xf) { return function h(xh) { debugger; } }');
    1.14 +g1.eval('var h = f("value of xf");');
    1.15 +
    1.16 +// To ensure that xk gets located on the heap, and thus outlives its stack frame, we
    1.17 +// store a function that captures it here. Kind of a kludge.
    1.18 +g2.eval('var capture;');
    1.19 +g2.eval('function k(xk) { capture = function () { return xk; }; g1.h("value of xh"); }');
    1.20 +
    1.21 +var dbg = new Debugger;
    1.22 +dbg.addDebuggee(g1);
    1.23 +dbg.addDebuggee(g2);
    1.24 +
    1.25 +dbg.onDebuggerStatement = debuggerHandler;
    1.26 +
    1.27 +var log = '';
    1.28 +
    1.29 +g1.eval('g2.k("value of xk");');
    1.30 +
    1.31 +var he, ke, ee;
    1.32 +
    1.33 +function debuggerHandler(frame) {
    1.34 +  log += 'd';
    1.35 +
    1.36 +  assertEq(frame.type, 'call');
    1.37 +  he = frame.environment;
    1.38 +
    1.39 +  assertEq(frame.older.type, 'call');
    1.40 +  ke = frame.older.environment;
    1.41 +
    1.42 +  assertEq(frame.older.older.type, 'eval');
    1.43 +  ee = frame.older.older.environment;
    1.44 +
    1.45 +  assertEq(he.inspectable, true);
    1.46 +  assertEq(he.getVariable('xh'), 'value of xh');
    1.47 +  assertEq(he.parent.parent.getVariable('xf'), 'value of xf');
    1.48 +  assertEq(ke.inspectable, true);
    1.49 +  assertEq(ke.getVariable('xk'), 'value of xk');
    1.50 +  assertEq(ee.inspectable, true);
    1.51 +  assertEq(ee.type, 'object');
    1.52 +
    1.53 +  dbg.removeDebuggee(g2);
    1.54 +
    1.55 +  assertEq(he.inspectable, true);
    1.56 +  assertEq(he.type, 'declarative');
    1.57 +  assertEq(ke.inspectable, false);
    1.58 +  assertThrowsInstanceOf(() => ke.getVariable('xk'), Error);
    1.59 +  assertEq(ee.inspectable, true);
    1.60 +  assertEq(ee.type, 'object');
    1.61 +
    1.62 +  dbg.removeDebuggee(g1);
    1.63 +
    1.64 +  assertEq(he.inspectable, false);
    1.65 +  assertThrowsInstanceOf(() => he.getVariable('xh'), Error);
    1.66 +  assertEq(ke.inspectable, false);
    1.67 +  assertThrowsInstanceOf(() => ke.getVariable('xk'), Error);
    1.68 +  assertEq(ee.inspectable, false);
    1.69 +  assertThrowsInstanceOf(() => ee.type, Error);
    1.70 +}
    1.71 +
    1.72 +assertEq(log, 'd');
    1.73 +
    1.74 +dbg.addDebuggee(g2);
    1.75 +
    1.76 +assertEq(he.inspectable, false);
    1.77 +assertThrowsInstanceOf(() => he.getVariable('xh'), Error);
    1.78 +assertEq(ke.inspectable, true);
    1.79 +assertEq(ke.getVariable('xk'), 'value of xk');
    1.80 +assertEq(ee.inspectable, false);
    1.81 +assertThrowsInstanceOf(() => ee.type, Error);