1// Copyright 2008 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 32listenerComplete = false; 33exception = false; 34 35// The base part of all evaluate requests. 36var base_request = '"seq":0,"type":"request","command":"evaluate"' 37 38function safeEval(code) { 39 try { 40 return eval('(' + code + ')'); 41 } catch (e) { 42 assertEquals(void 0, e); 43 return undefined; 44 } 45} 46 47function testRequest(dcp, arguments, success, result) { 48 // Generate request with the supplied arguments. 49 var request; 50 if (arguments) { 51 request = '{' + base_request + ',"arguments":' + arguments + '}'; 52 } else { 53 request = '{' + base_request + '}' 54 } 55 var response = safeEval(dcp.processDebugJSONRequest(request)); 56 if (success) { 57 assertTrue(response.success, request + ' -> ' + response.message); 58 assertEquals(result, response.body.value); 59 } else { 60 assertFalse(response.success, request + ' -> ' + response.message); 61 } 62 assertEquals(response.running, "unspecified_running_state", 63 request + ' -> expected not running'); 64} 65 66function listener(event, exec_state, event_data, data) { 67 try { 68 if (event == Debug.DebugEvent.Break) { 69 // Get the debug command processor. 70 var dcp = exec_state.debugCommandProcessor("unspecified_running_state"); 71 72 // Test some illegal evaluate requests. 73 testRequest(dcp, void 0, false); 74 testRequest(dcp, '{"expression":"1","global"=true}', false); 75 testRequest(dcp, '{"expression":"a","frame":4}', false); 76 77 // Test some legal evaluate requests. 78 testRequest(dcp, '{"expression":"1+2"}', true, 3); 79 testRequest(dcp, '{"expression":"a+2"}', true, 5); 80 testRequest(dcp, '{"expression":"({\\"a\\":1,\\"b\\":2}).b+2"}', true, 4); 81 82 // Test evaluation of a in the stack frames and the global context. 83 testRequest(dcp, '{"expression":"a"}', true, 3); 84 testRequest(dcp, '{"expression":"a","frame":0}', true, 3); 85 testRequest(dcp, '{"expression":"a","frame":1}', true, 2); 86 testRequest(dcp, '{"expression":"a","frame":2}', true, 1); 87 testRequest(dcp, '{"expression":"a","global":true}', true, 1); 88 testRequest(dcp, '{"expression":"this.a","global":true}', true, 1); 89 90 // Test that the whole string text is returned if maxStringLength 91 // parameter is passed. 92 testRequest( 93 dcp, 94 '{"expression":"this.longString","global":true,"maxStringLength":-1}', 95 true, 96 longString); 97 testRequest( 98 dcp, 99 '{"expression":"this.longString","global":true,"maxStringLength":' + 100 longString.length + '}', 101 true, 102 longString); 103 var truncatedStringSuffix = '... (length: ' + longString.length + ')'; 104 testRequest( 105 dcp, 106 '{"expression":"this.longString","global":true,"maxStringLength":0}', 107 true, 108 truncatedStringSuffix); 109 testRequest( 110 dcp, 111 '{"expression":"this.longString","global":true,"maxStringLength":1}', 112 true, 113 longString.charAt(0) + truncatedStringSuffix); 114 // Test that by default string is truncated to first 80 chars. 115 testRequest( 116 dcp, 117 '{"expression":"this.longString","global":true}', 118 true, 119 longString.substring(0, 80) + truncatedStringSuffix); 120 121 // Indicate that all was processed. 122 listenerComplete = true; 123 } 124 } catch (e) { 125 exception = e 126 }; 127}; 128 129// Add the debug event listener. 130Debug.setListener(listener); 131 132function f() { 133 var a = 3; 134}; 135 136function g() { 137 var a = 2; 138 f(); 139 return a; // Use the value to prevent it being removed by DCE. 140}; 141 142a = 1; 143 144// String which is longer than 80 chars. 145var longString = "1234567890_"; 146for (var i = 0; i < 4; i++) { 147 longString += longString; 148} 149 150// Set a break point at return in f and invoke g to hit the breakpoint. 151Debug.setBreakPoint(f, 2, 0); 152g(); 153 154assertFalse(exception, "exception in listener") 155// Make sure that the debug event listener vas invoked. 156assertTrue(listenerComplete, "listener did not run to completion"); 157