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