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. 30Debug = debug.Debug 31 32var exception = false; // Exception in debug event listener. 33var before_compile_count = 0; 34var after_compile_count = 0; 35var current_source = ''; // Current source being compiled. 36var source_count = 0; // Total number of scources compiled. 37var host_compilations = 0; // Number of scources compiled through the API. 38var eval_compilations = 0; // Number of scources compiled through eval. 39 40 41function compileSource(source) { 42 current_source = source; 43 eval(current_source); 44 source_count++; 45} 46 47 48function 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. 95Debug.setListener(listener); 96 97// Compile different sources. 98compileSource('a=1'); 99compileSource('(function(){})'); 100compileSource('eval("a=2")'); 101source_count++; // Using eval causes additional compilation event. 102compileSource('eval("eval(\'(function(){return a;})\')")'); 103source_count += 2; // Using eval causes additional compilation event. 104compileSource('JSON.parse(\'{"a":1,"b":2}\')'); 105// Using JSON.parse does not causes additional compilation events. 106compileSource('x=1; //@ sourceURL=myscript.js'); 107 108// Make sure that the debug event listener was invoked. 109assertFalse(exception, "exception in listener") 110 111// Number of before and after compile events should be the same. 112assertEquals(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). 116assertEquals(source_count, after_compile_count); 117assertEquals(0, host_compilations); 118assertEquals(source_count, eval_compilations); 119 120Debug.setListener(null); 121