JezK
Edit File: debug-evaluate-recursive.js
// Copyright 2008 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 listenerComplete = false; exception = false; // The base part of all evaluate requests. var base_request = '"seq":0,"type":"request","command":"evaluate"' function safeEval(code) { try { return eval('(' + code + ')'); } catch (e) { assertEquals(void 0, e); return undefined; } } function testRequest(exec_state, arguments, success, result) { // Get the debug command processor in paused state. var dcp = exec_state.debugCommandProcessor(false); // Generate request with the supplied arguments. var request; if (arguments) { request = '{' + base_request + ',"arguments":' + arguments + '}'; } else { request = '{' + base_request + '}' } var response = safeEval(dcp.processDebugJSONRequest(request)); if (success) { assertTrue(response.success, request + ' -> ' + response.message); assertEquals(result, response.body.value); } else { assertFalse(response.success, request + ' -> ' + response.message); } assertFalse(response.running, request + ' -> expected not running'); } // Event listener which evaluates with break disabled. function listener(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.Break) { // Call functions with break using the FrameMirror directly. assertEquals(1, exec_state.evaluateGlobal('f()', true).value()); assertEquals(2, exec_state.evaluateGlobal('g()', true).value()); assertEquals(1, exec_state.frame(0).evaluate('f()', true).value()); assertEquals(2, exec_state.frame(0).evaluate('g()', true).value()); // Call functions with break using the JSON protocol. Tests that argument // disable_break is default true. testRequest(exec_state, '{"expression":"f()"}', true, 1); testRequest(exec_state, '{"expression":"f()","frame":0}', true, 1); testRequest(exec_state, '{"expression":"g()"}', true, 2); testRequest(exec_state, '{"expression":"g()","frame":0}', true, 2); // Call functions with break using the JSON protocol. Tests passing // argument disable_break is default true. testRequest(exec_state, '{"expression":"f()","disable_break":true}', true, 1); testRequest(exec_state, '{"expression":"f()","frame":0,"disable_break":true}', true, 1); testRequest(exec_state, '{"expression":"g()","disable_break":true}', true, 2); testRequest(exec_state, '{"expression":"g()","frame":0,"disable_break":true}', true, 2); // Indicate that all was processed. listenerComplete = true; } } catch (e) { exception = e }; }; // Event listener which evaluates with break enabled one time and the second // time evaluates with break disabled. var break_count = 0; function listener_recurse(event, exec_state, event_data, data) { try { if (event == Debug.DebugEvent.Break) { break_count++; // Call functions with break using the FrameMirror directly. if (break_count == 1) { // First break event evaluates with break enabled. assertEquals(1, exec_state.frame(0).evaluate('f()', false).value()); listenerComplete = true; } else { // Second break event evaluates with break disabled. assertEquals(2, break_count); assertFalse(listenerComplete); assertEquals(1, exec_state.frame(0).evaluate('f()', true).value()); } } } catch (e) { exception = e }; }; // Add the debug event listener. Debug.setListener(listener); // Test functions - one with break point and one with debugger statement. function f() { return 1; }; function g() { debugger; return 2; }; Debug.setBreakPoint(f, 2, 0); // Cause a debug break event. debugger; assertFalse(exception, "exception in listener") // Make sure that the debug event listener vas invoked. assertTrue(listenerComplete); // Remove the debug event listener. Debug.setListener(null); // Set debug event listener wich uses recursive breaks. Debug.setListener(listener_recurse); listenerComplete = false; Debug.setBreakPoint(f, 2, 0); debugger; assertFalse(exception, "exception in listener") // Make sure that the debug event listener vas invoked. assertTrue(listenerComplete); assertEquals(2, break_count);