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