1 // Copyright 2012 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --expose-debug-as debug 29 30 // Test that a variable in the local scope that shadows a context-allocated 31 // variable is correctly resolved when being evaluated in the debugger. 32 33 Debug = debug.Debug; 34 35 var exception = false; 36 37 function listener(event, exec_state, event_data, data) { 38 if (event != Debug.DebugEvent.Break) return; 39 var breakpoint = exec_state.frame(0); 40 try { 41 // Assert correct break point. 42 assertTrue(breakpoint.sourceLineText().indexOf("// Break") > -1); 43 // Assert correct value. 44 assertEquals(3, breakpoint.evaluate('x').value()); 45 } catch (e) { 46 exception = e; 47 } 48 } 49 50 Debug.setListener(listener); 51 52 function h() { 53 var x; // Context-allocated due to g(). 54 55 var g = function g() { 56 x = -7; 57 }; 58 59 var f = function f() { 60 var x = 3; // Allocated in the local scope. 61 debugger; // Break. 62 }; 63 64 f(); 65 } 66 67 h(); 68 69 assertFalse(exception); 70
