tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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Environment-getVariable-02.js (592B)

      1 // getVariable works in function scopes.
      2 
      3 var g = newGlobal({newCompartment: true});
      4 var dbg = Debugger(g);
      5 var hits = 0;
      6 dbg.onDebuggerStatement = function (frame) {
      7    var lexicalEnv = frame.environment;
      8    var varEnv = lexicalEnv.parent;
      9    assertEq(varEnv.getVariable("a"), 1);
     10    assertEq(varEnv.getVariable("b"), 2);
     11    assertEq(varEnv.getVariable("c"), 3);
     12    assertEq(varEnv.getVariable("d"), 7);
     13    assertEq(lexicalEnv.getVariable("e"), 8);
     14    hits++;
     15 };
     16 g.eval("function f(a, [b, c]) { var d = a + b + c + 1; let e = d + 1; debugger; }");
     17 g.f(1, [2, 3]);
     18 assertEq(hits, 1);