1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Flags: --expose-debug-as debug 6 7 // Test that debug-evaluate only resolves variables that are used by 8 // the function inside which we debug-evaluate. This is to avoid 9 // incorrect variable resolution when a context-allocated variable is 10 // shadowed by a stack-allocated variable. 11 12 "use strict"; 13 14 var Debug = debug.Debug 15 16 var exception = null; 17 function listener(event, exec_state, event_data, data) { 18 if (event != Debug.DebugEvent.Break) return; 19 try { 20 exec_state.frame(0).evaluate("var x = 2"); 21 exec_state.frame(0).evaluate("'use strict'; let y = 3"); 22 exec_state.frame(0).evaluate("var z = 4"); 23 exec_state.frame(0).evaluate("function bar() { return 5; }"); 24 } catch (e) { 25 exception = e; 26 print(e + e.stack); 27 } 28 } 29 30 Debug.setListener(listener); 31 32 var z = 1; 33 34 (function() { 35 debugger; 36 })(); 37 38 assertEquals(2, x); // declaration 39 assertThrows(() => y, ReferenceError); // let-declaration does not stick 40 assertEquals(4, z); // re-declaration 41 assertEquals(5, bar()); // function declaration 42 43 Debug.setListener(null); 44 assertNull(exception); 45
