Environment-getVariable-15.js

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// Don't hand out internal function objects via Debugger.Environment.prototype.getVariable.

// When the real scope chain object holding the binding for 'f' in 'function f()

// { ... }' is optimized out because it's never used, we whip up fake scope

// chain objects for Debugger to use, if it looks. However, the value of the

// variable f will be an internal function object, not a live function object,

// since the latter was not recorded. Internal function objects should not be

// exposed via Debugger.

var g = newGlobal({newCompartment: true});

var dbg = new Debugger(g);

dbg.onDebuggerStatement = function (frame) {

  var g_call_env = frame.older.environment;     // g's locals

  var g_decl_env = g_call_env.parent;           // 'function g' binding

  var f_call_env = g_decl_env.parent;           // f's locals

  var f_decl_env = f_call_env.parent;           // 'function f' binding

  assertEq(f_decl_env.getVariable('f').optimizedOut, true);

g.evaluate(`

           function h() { debugger; }

           (function f() {

             return function g() {

               h();

               return 1;

           })()();

`);