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1 // Copyright 2009 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 // Get the Debug object exposed from the debug context global object. | |
30 Debug = debug.Debug | |
31 | |
32 var exception = false; // Exception in debug event listener. | |
33 var before_compile_count = 0; | |
34 var after_compile_count = 0; | |
35 var compile_error_count = 0; | |
36 var current_source = ''; // Current source being compiled. | |
37 var source_count = 0; // Total number of scources compiled. | |
38 var host_compilations = 0; // Number of scources compiled through the API. | |
39 var eval_compilations = 0; // Number of scources compiled through eval. | |
40 var mute_listener = false; | |
41 | |
42 function compileSource(source) { | |
43 current_source = source; | |
44 eval(current_source); | |
45 source_count++; | |
46 } | |
47 | |
48 function safeEval(code) { | |
49 try { | |
50 mute_listener = true; | |
51 return eval('(' + code + ')'); | |
52 } catch (e) { | |
53 assertEquals(void 0, e); | |
54 return undefined; | |
55 } finally { | |
56 mute_listener = false; | |
57 } | |
58 } | |
59 | |
60 function listener(event, exec_state, event_data, data) { | |
61 if (mute_listener) return; | |
62 try { | |
63 if (event == Debug.DebugEvent.BeforeCompile || | |
64 event == Debug.DebugEvent.AfterCompile || | |
65 event == Debug.DebugEvent.CompileError) { | |
66 // Count the events. | |
67 if (event == Debug.DebugEvent.BeforeCompile) { | |
68 before_compile_count++; | |
69 } else if (event == Debug.DebugEvent.AfterCompile) { | |
70 after_compile_count++; | |
71 switch (event_data.script().compilationType()) { | |
72 case Debug.ScriptCompilationType.Host: | |
73 host_compilations++; | |
74 break; | |
75 case Debug.ScriptCompilationType.Eval: | |
76 eval_compilations++; | |
77 break; | |
78 } | |
79 } else { | |
80 compile_error_count++; | |
81 } | |
82 | |
83 // If the compiled source contains 'eval' there will be additional compile | |
84 // events for the source inside eval. | |
85 if (current_source.indexOf('eval') == 0) { | |
86 // For source with 'eval' there will be compile events with substrings | |
87 // as well as with with the exact source. | |
88 assertTrue(current_source.indexOf(event_data.script().source()) >= 0); | |
89 } else { | |
90 // For source without 'eval' there will be a compile events with the | |
91 // exact source. | |
92 assertEquals(current_source, event_data.script().source()); | |
93 } | |
94 // Check that script context is included into the event message. | |
95 var json = event_data.toJSONProtocol(); | |
96 var msg = safeEval(json); | |
97 assertTrue('context' in msg.body.script); | |
98 | |
99 // Check that we pick script name from //# sourceURL, iff present | |
100 if (event == Debug.DebugEvent.AfterCompile) { | |
101 assertEquals(current_source.indexOf('sourceURL') >= 0 ? | |
102 'myscript.js' : undefined, | |
103 event_data.script().name()); | |
104 } | |
105 } | |
106 } catch (e) { | |
107 exception = e | |
108 } | |
109 }; | |
110 | |
111 | |
112 // Add the debug event listener. | |
113 Debug.setListener(listener); | |
114 | |
115 // Compile different sources. | |
116 compileSource('a=1'); | |
117 compileSource('(function(){})'); | |
118 compileSource('eval("a=2")'); | |
119 source_count++; // Using eval causes additional compilation event. | |
120 compileSource('eval("eval(\'(function(){return a;})\')")'); | |
121 source_count += 2; // Using eval causes additional compilation event. | |
122 compileSource('JSON.parse(\'{"a":1,"b":2}\')'); | |
123 // Using JSON.parse does not causes additional compilation events. | |
124 compileSource('x=1; //# sourceURL=myscript.js'); | |
125 | |
126 try { | |
127 compileSource('}'); | |
128 } catch(e) { | |
129 } | |
130 | |
131 // Make sure that the debug event listener was invoked. | |
132 assertFalse(exception, "exception in listener") | |
133 | |
134 // Number of before and after + error events should be the same. | |
135 assertEquals(before_compile_count, after_compile_count + compile_error_count); | |
136 assertEquals(compile_error_count, 1); | |
137 | |
138 // Check the actual number of events (no compilation through the API as all | |
139 // source compiled through eval). | |
140 assertEquals(source_count, after_compile_count); | |
141 assertEquals(0, host_compilations); | |
142 assertEquals(source_count, eval_compilations); | |
143 | |
144 Debug.setListener(null); | |
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