tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Environment-parent-01.js (591B)

      1 // The objects on the environment chain are all Debugger.Environment objects.
      2 // The environment chain ends in null.
      3 
      4 var g = newGlobal({newCompartment: true})
      5 g.eval("function f(a) { return function (b) { return function (c) { h(); return a + b + c; }; }; }");
      6 var dbg = Debugger(g);
      7 var hits = 0;
      8 g.h = function () {
      9    var n = 0;
     10    for (var env = dbg.getNewestFrame().environment; env !== null; env = env.parent) {
     11        n++;
     12        assertEq(env instanceof Debugger.Environment, true);
     13    }
     14    assertEq(n >= 4, true);
     15    hits++;
     16 };
     17 assertEq(g.f(5)(7)(9), 21);
     18 assertEq(hits, 1);