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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --expose-debug-as debug | 28 // Flags: --expose-debug-as debug --allow-natives-syntax |
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 | 29 |
33 Debug = debug.Debug; | 30 Debug = debug.Debug; |
34 | 31 |
35 var exception = false; | |
36 | |
37 function listener(event, exec_state, event_data, data) { | 32 function listener(event, exec_state, event_data, data) { |
38 if (event != Debug.DebugEvent.Break) return; | 33 if (event != Debug.DebugEvent.Break) return; |
39 var breakpoint = exec_state.frame(0); | |
40 try { | 34 try { |
41 // Assert correct break point. | 35 assertEquals("foo", exec_state.frame(0).evaluate("bar").value()); |
42 assertTrue(breakpoint.sourceLineText().indexOf("// Break") > -1); | |
43 // Assert correct value. | |
44 assertEquals(3, breakpoint.evaluate('x').value()); | |
45 } catch (e) { | 36 } catch (e) { |
46 exception = e; | 37 exception = e; |
47 } | 38 }; |
| 39 listened++; |
| 40 }; |
| 41 |
| 42 var exception = null; |
| 43 var listened = 0; |
| 44 |
| 45 var f = function() { |
| 46 var bar = "foo"; |
| 47 var baz = bar; // Break point should be here. |
| 48 return bar; |
48 } | 49 } |
49 | 50 |
| 51 var g = function() { |
| 52 var bar = "foo"; |
| 53 var baz = bar; // Break point should be here. |
| 54 return bar; |
| 55 } |
| 56 |
| 57 f(); |
| 58 f(); |
| 59 g(); |
| 60 g(); |
| 61 |
| 62 // Mark with builtin. |
| 63 %OptimizeFunctionOnNextCall(f); |
| 64 if (%IsParallelRecompilationSupported()) { |
| 65 %OptimizeFunctionOnNextCall(g, "parallel"); |
| 66 } |
| 67 |
| 68 // Activate debugger. |
50 Debug.setListener(listener); | 69 Debug.setListener(listener); |
51 | 70 |
52 function h() { | 71 // Set break point. |
53 var x; // Context-allocated due to g(). | 72 Debug.setBreakPoint(f, 2, 0); |
| 73 Debug.setBreakPoint(g, 2, 0); |
54 | 74 |
55 var g = function g() { | 75 // Trigger break point. |
56 x = -7; | 76 f(); |
57 }; | 77 g(); |
58 | 78 |
59 var f = function f() { | 79 // Assert that break point is set at expected location. |
60 var x = 3; // Allocated in the local scope. | 80 assertTrue(Debug.showBreakPoints(f).indexOf("[B0]var baz = bar;") > 0); |
61 debugger; // Break. | 81 assertTrue(Debug.showBreakPoints(g).indexOf("[B0]var baz = bar;") > 0); |
62 }; | |
63 | 82 |
64 f(); | 83 assertEquals(2, listened); |
65 } | 84 assertNull(exception); |
66 | |
67 h(); | |
68 | |
69 assertFalse(exception); | |
70 | |
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