/deps/v8/test/mjsunit/debug-compile-event.js
JavaScript | 132 lines | 73 code | 15 blank | 44 comment | 15 complexity | 6a66243ed52f84a2997668bcf9f55c5a MD5 | raw file
Possible License(s): JSON, BSD-2-Clause, BSD-3-Clause
- // 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.
- var json_compilations = 0; // Number of scources compiled through JSON.parse.
- 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;
- case Debug.ScriptCompilationType.JSON:
- json_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 if (current_source.indexOf('JSON.parse') == 0) {
- // For JSON the JSON source will be in parentheses.
- var s = event_data.script().source();
- if (s[0] == '(') {
- s = s.substring(1, s.length - 2);
- }
- assertTrue(current_source.indexOf(s) >= 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}\')');
- source_count++; // Using JSON.parse causes additional compilation event.
- 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 except for one JSON.parse call).
- assertEquals(source_count, after_compile_count);
- assertEquals(0, host_compilations);
- assertEquals(source_count - 1, eval_compilations);
- assertEquals(1, json_compilations);
- Debug.setListener(null);