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-identity-02.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,29 @@
     1.4 +// frame.environment is different for different activations of a scope.
     1.5 +
     1.6 +var g = newGlobal();
     1.7 +var dbg = Debugger(g);
     1.8 +g.eval("function h() { debugger; }");
     1.9 +var arr;
    1.10 +dbg.onDebuggerStatement = function (hframe) {
    1.11 +    var e = hframe.older.environment;
    1.12 +    assertEq(arr.indexOf(e), -1);
    1.13 +    arr.push(e);
    1.14 +};
    1.15 +
    1.16 +function test(code, expectedHits) {
    1.17 +    arr = [];
    1.18 +    g.eval(code);
    1.19 +    assertEq(arr.length, expectedHits);
    1.20 +}
    1.21 +
    1.22 +// two separate calls to a function
    1.23 +test("(function () { var f = function (a) { h(); return a; }; f(1); f(2); })();", 2);
    1.24 +
    1.25 +// recursive calls to a function
    1.26 +test("(function f(n) { h(); return n < 2 ? 1 : n * f(n - 1); })(3);", 3);
    1.27 +
    1.28 +// separate visits to a block in the same call frame
    1.29 +test("(function () { for (var i = 0; i < 3; i++) { let j = i * 4; h(); }})();", 3);
    1.30 +
    1.31 +// two strict direct eval calls in the same function scope
    1.32 +test("(function () { 'use strict'; for (var i = 0; i < 3; i++) eval('h();'); })();", 3);