1 // Copyright 2014 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 Debug = debug.Debug 8 9 var debug_step = 0; 10 var failure = null; 11 12 function listener(event, exec_state, event_data, data) { 13 if (event != Debug.DebugEvent.Break) return; 14 try { 15 if (debug_step == 0) { 16 assertEquals(1, exec_state.frame(0).evaluate('a').value()); 17 assertEquals(3, exec_state.frame(0).evaluate('b').value()); 18 exec_state.frame(0).evaluate("a = 4").value(); 19 debug_step++; 20 } else { 21 assertEquals(4, exec_state.frame(0).evaluate('a').value()); 22 assertEquals(3, exec_state.frame(0).evaluate('b').value()); 23 exec_state.frame(0).evaluate("b = 5").value(); 24 } 25 } catch (e) { 26 failure = e; 27 } 28 } 29 30 Debug.setListener(listener); 31 32 function* generator(a, b) { 33 var b = 3; // Shadows a parameter. 34 debugger; 35 yield a; 36 yield b; 37 debugger; 38 return b; 39 } 40 41 var foo = generator(1, 2); 42 43 assertEquals(4, foo.next().value); 44 assertEquals(3, foo.next().value); 45 assertEquals(5, foo.next().value); 46 assertNull(failure); 47 48 Debug.setListener(null); 49
