Environment-getVariable-15.js (1166B)
1 // Don't hand out internal function objects via Debugger.Environment.prototype.getVariable. 2 3 // When the real scope chain object holding the binding for 'f' in 'function f() 4 // { ... }' is optimized out because it's never used, we whip up fake scope 5 // chain objects for Debugger to use, if it looks. However, the value of the 6 // variable f will be an internal function object, not a live function object, 7 // since the latter was not recorded. Internal function objects should not be 8 // exposed via Debugger. 9 10 var g = newGlobal({newCompartment: true}); 11 var dbg = new Debugger(g); 12 13 dbg.onDebuggerStatement = function (frame) { 14 var g_call_env = frame.older.environment; // g's locals 15 var g_decl_env = g_call_env.parent; // 'function g' binding 16 var f_call_env = g_decl_env.parent; // f's locals 17 var f_decl_env = f_call_env.parent; // 'function f' binding 18 assertEq(f_decl_env.getVariable('f').optimizedOut, true); 19 } 20 21 g.evaluate(` 22 23 function h() { debugger; } 24 (function f() { 25 return function g() { 26 h(); 27 return 1; 28 } 29 })()(); 30 31 `);