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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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 --harmony-scoping | 28 // Flags: --expose-debug-as debug --expose-natives-as=builtins |
29 | 29 |
30 // Test debug evaluation for functions without local context, but with | 30 // Check that the ScopeIterator can properly recreate the scope at |
31 // nested catch contexts. | 31 // every point when stepping through functions. |
32 | 32 |
33 // TODO(ES6): properly activate extended mode | 33 var Debug = debug.Debug; |
34 "use strict"; | |
35 | |
36 var x; | |
37 var result; | |
38 | |
39 function f() { | |
40 { // Line 1. | |
41 let i = 1; // Line 2. | |
42 try { // Line 3. | |
43 throw 'stuff'; // Line 4. | |
44 } catch (e) { // Line 5. | |
45 x = 2; // Line 6. | |
46 } | |
47 } | |
48 }; | |
49 | |
50 // Get the Debug object exposed from the debug context global object. | |
51 var Debug = debug.Debug | |
52 // Set breakpoint on line 6. | |
53 var bp = Debug.setBreakPoint(f, 6); | |
54 | 34 |
55 function listener(event, exec_state, event_data, data) { | 35 function listener(event, exec_state, event_data, data) { |
56 if (event == Debug.DebugEvent.Break) { | 36 if (event == Debug.DebugEvent.Break) { |
57 result = exec_state.frame().evaluate("i").value(); | 37 // Access scope details. |
| 38 var scope_count = exec_state.frame().scopeCount(); |
| 39 for (var i = 0; i < scope_count; i++) { |
| 40 var scope = exec_state.frame().scope(i); |
| 41 // assertTrue(scope.isScope()); |
| 42 scope.scopeType(); |
| 43 scope.scopeObject(); |
| 44 } |
| 45 |
| 46 // Do steps until we reach the global scope again. |
| 47 if (true) { |
| 48 exec_state.prepareStep(Debug.StepAction.StepInMin, 1); |
| 49 } |
58 } | 50 } |
59 }; | 51 } |
60 | 52 |
61 // Add the debug event listener. | |
62 Debug.setListener(listener); | 53 Debug.setListener(listener); |
63 result = -1; | |
64 f(); | |
65 assertEquals(1, result); | |
66 | 54 |
67 // Clear breakpoint. | 55 var q = 42; |
68 Debug.clearBreakPoint(bp); | 56 var prefixes = [ |
69 // Get rid of the debug event listener. | 57 "debugger; ", |
70 Debug.setListener(null); | 58 "if (false) { try { throw 0; } catch(x) { return x; } }; debugger; " ]; |
| 59 var bodies = [ "1", |
| 60 "1 ", |
| 61 "1;", |
| 62 "1; ", |
| 63 "q", |
| 64 "q ", |
| 65 "q;", |
| 66 "q; ", |
| 67 "try { throw 'stuff' } catch (e) { e = 1; }", |
| 68 "try { throw 'stuff' } catch (e) { e = 1; } ", |
| 69 "try { throw 'stuff' } catch (e) { e = 1; };", |
| 70 "try { throw 'stuff' } catch (e) { e = 1; }; " ]; |
| 71 |
| 72 |
| 73 // Test global eval and function constructor. |
| 74 for (var i = 0; i < prefixes.length; ++i) { |
| 75 var pre = prefixes[i]; |
| 76 for (var j = 0; j < bodies.length; ++j) { |
| 77 var body = bodies[j]; |
| 78 eval(pre + body); |
| 79 } |
| 80 } |
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