JezK
Edit File: debug-compile-event.js
// Copyright 2009 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // Flags: --expose-debug-as debug // Get the Debug object exposed from the debug context global object. Debug = debug.Debug var exception = false; // Exception in debug event listener. var before_compile_count = 0; var after_compile_count = 0; var current_source = ''; // Current source being compiled. var source_count = 0; // Total number of scources compiled. var host_compilations = 0; // Number of scources compiled through the API. var eval_compilations = 0; // Number of scources compiled through eval. function compileSource(source) { current_source = source; eval(current_source); source_count++; } function listener(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.BeforeCompile || event == Debug.DebugEvent.AfterCompile) { // Count the events. if (event == Debug.DebugEvent.BeforeCompile) { before_compile_count++; } else { after_compile_count++; switch (event_data.script().compilationType()) { case Debug.ScriptCompilationType.Host: host_compilations++; break; case Debug.ScriptCompilationType.Eval: eval_compilations++; break; } } // If the compiled source contains 'eval' there will be additional compile // events for the source inside eval. if (current_source.indexOf('eval') == 0) { // For source with 'eval' there will be compile events with substrings // as well as with with the exact source. assertTrue(current_source.indexOf(event_data.script().source()) >= 0); } else { // For source without 'eval' there will be a compile events with the // exact source. assertEquals(current_source, event_data.script().source()); } // Check that script context is included into the event message. var json = event_data.toJSONProtocol(); var msg = eval('(' + json + ')'); assertTrue('context' in msg.body.script); // Check that we pick script name from //@ sourceURL, iff present assertEquals(current_source.indexOf('sourceURL') >= 0 ? 'myscript.js' : undefined, event_data.script().name()); } } catch (e) { exception = e } }; // Add the debug event listener. Debug.setListener(listener); // Compile different sources. compileSource('a=1'); compileSource('(function(){})'); compileSource('eval("a=2")'); source_count++; // Using eval causes additional compilation event. compileSource('eval("eval(\'(function(){return a;})\')")'); source_count += 2; // Using eval causes additional compilation event. compileSource('JSON.parse(\'{"a":1,"b":2}\')'); // Using JSON.parse does not causes additional compilation events. compileSource('x=1; //@ sourceURL=myscript.js'); // Make sure that the debug event listener was invoked. assertFalse(exception, "exception in listener") // Number of before and after compile events should be the same. assertEquals(before_compile_count, after_compile_count); // Check the actual number of events (no compilation through the API as all // source compiled through eval). assertEquals(source_count, after_compile_count); assertEquals(0, host_compilations); assertEquals(source_count, eval_compilations); Debug.setListener(null);