Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame^] | 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. |
| 30 | Debug = debug.Debug |
| 31 | |
| 32 | listenerComplete = false; |
| 33 | exception = false; |
| 34 | |
| 35 | function safeEval(code) { |
| 36 | try { |
| 37 | return eval('(' + code + ')'); |
| 38 | } catch (e) { |
| 39 | assertEquals(void 0, e); |
| 40 | return undefined; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | |
| 45 | // Send an evaluation request and return the handle of the result. |
| 46 | function evaluateRequest(dcp, arguments) { |
| 47 | // The base part of all evaluate requests. |
| 48 | var base_request = '"seq":0,"type":"request","command":"evaluate"' |
| 49 | |
| 50 | // Generate request with the supplied arguments. |
| 51 | var request; |
| 52 | if (arguments) { |
| 53 | request = '{' + base_request + ',"arguments":' + arguments + '}'; |
| 54 | } else { |
| 55 | request = '{' + base_request + '}' |
| 56 | } |
| 57 | |
| 58 | var response = safeEval(dcp.processDebugJSONRequest(request)); |
| 59 | assertTrue(response.success, request + ' -> ' + response.message); |
| 60 | |
| 61 | return response.body.handle; |
| 62 | } |
| 63 | |
| 64 | |
| 65 | // Send a lookup request and return the evaluated JSON response. |
| 66 | function lookupRequest(dcp, arguments, success) { |
| 67 | // The base part of all lookup requests. |
| 68 | var base_request = '"seq":0,"type":"request","command":"lookup"' |
| 69 | |
| 70 | // Generate request with the supplied arguments. |
| 71 | var request; |
| 72 | if (arguments) { |
| 73 | request = '{' + base_request + ',"arguments":' + arguments + '}'; |
| 74 | } else { |
| 75 | request = '{' + base_request + '}' |
| 76 | } |
| 77 | |
| 78 | var response = safeEval(dcp.processDebugJSONRequest(request)); |
| 79 | if (success) { |
| 80 | assertTrue(response.success, request + ' -> ' + response.message); |
| 81 | } else { |
| 82 | assertFalse(response.success, request + ' -> ' + response.message); |
| 83 | } |
| 84 | assertFalse(response.running, request + ' -> expected not running'); |
| 85 | |
| 86 | return response; |
| 87 | } |
| 88 | |
| 89 | |
| 90 | function listener(event, exec_state, event_data, data) { |
| 91 | try { |
| 92 | if (event == Debug.DebugEvent.Break) { |
| 93 | // Get the debug command processor. |
| 94 | var dcp = exec_state.debugCommandProcessor(); |
| 95 | |
| 96 | // Test some illegal lookup requests. |
| 97 | lookupRequest(dcp, void 0, false); |
| 98 | lookupRequest(dcp, '{"handles":["a"]}', false); |
| 99 | lookupRequest(dcp, '{"handles":[-1]}', false); |
| 100 | |
| 101 | // Evaluate and get some handles. |
| 102 | var handle_o = evaluateRequest(dcp, '{"expression":"o"}'); |
| 103 | var handle_p = evaluateRequest(dcp, '{"expression":"p"}'); |
| 104 | var handle_b = evaluateRequest(dcp, '{"expression":"a"}'); |
| 105 | var handle_a = evaluateRequest(dcp, '{"expression":"b","frame":1}'); |
| 106 | assertEquals(handle_o, handle_a); |
| 107 | assertEquals(handle_a, handle_b); |
| 108 | assertFalse(handle_o == handle_p, "o and p have he same handle"); |
| 109 | |
| 110 | var response; |
| 111 | var count; |
| 112 | response = lookupRequest(dcp, '{"handles":[' + handle_o + ']}', true); |
| 113 | var obj = response.body[handle_o]; |
| 114 | assertTrue(!!obj, 'Object not found: ' + handle_o); |
| 115 | assertEquals(handle_o, obj.handle); |
| 116 | count = 0; |
| 117 | for (i in obj.properties) { |
| 118 | switch (obj.properties[i].name) { |
| 119 | case 'o': |
| 120 | obj.properties[i].ref = handle_o; |
| 121 | count++; |
| 122 | break; |
| 123 | case 'p': |
| 124 | obj.properties[i].ref = handle_p; |
| 125 | count++; |
| 126 | break; |
| 127 | } |
| 128 | } |
| 129 | assertEquals(2, count, 'Either "o" or "p" not found'); |
| 130 | response = lookupRequest(dcp, '{"handles":[' + handle_p + ']}', true); |
| 131 | obj = response.body[handle_p]; |
| 132 | assertTrue(!!obj, 'Object not found: ' + handle_p); |
| 133 | assertEquals(handle_p, obj.handle); |
| 134 | |
| 135 | // Check handles for functions on the stack. |
| 136 | var handle_f = evaluateRequest(dcp, '{"expression":"f"}'); |
| 137 | var handle_g = evaluateRequest(dcp, '{"expression":"g"}'); |
| 138 | var handle_caller = evaluateRequest(dcp, '{"expression":"f.caller"}'); |
| 139 | |
| 140 | assertFalse(handle_f == handle_g, "f and g have he same handle"); |
| 141 | assertEquals(handle_g, handle_caller, "caller for f should be g"); |
| 142 | |
| 143 | response = lookupRequest(dcp, '{"handles":[' + handle_f + ']}', true); |
| 144 | obj = response.body[handle_f]; |
| 145 | assertEquals(handle_f, obj.handle); |
| 146 | |
| 147 | count = 0; |
| 148 | for (i in obj.properties) { |
| 149 | var ref = obj.properties[i].ref; |
| 150 | var arguments = '{"handles":[' + ref + ']}'; |
| 151 | switch (obj.properties[i].name) { |
| 152 | case 'name': |
| 153 | var response_name; |
| 154 | response_name = lookupRequest(dcp, arguments, true); |
| 155 | assertEquals('string', response_name.body[ref].type); |
| 156 | assertEquals("f", response_name.body[ref].value); |
| 157 | count++; |
| 158 | break; |
| 159 | case 'length': |
| 160 | var response_length; |
| 161 | response_length = lookupRequest(dcp, arguments, true); |
| 162 | assertEquals('number', response_length.body[ref].type); |
| 163 | assertEquals(1, response_length.body[ref].value); |
| 164 | count++; |
| 165 | break; |
| 166 | case 'caller': |
| 167 | assertEquals(handle_g, obj.properties[i].ref); |
| 168 | count++; |
| 169 | break; |
| 170 | } |
| 171 | } |
| 172 | assertEquals(3, count, 'Either "name", "length" or "caller" not found'); |
| 173 | |
| 174 | |
| 175 | // Resolve all at once. |
| 176 | var refs = []; |
| 177 | for (i in obj.properties) { |
| 178 | refs.push(obj.properties[i].ref); |
| 179 | } |
| 180 | |
| 181 | var arguments = '{"handles":[' + refs.join(',') + ']}'; |
| 182 | response = lookupRequest(dcp, arguments, true); |
| 183 | count = 0; |
| 184 | for (i in obj.properties) { |
| 185 | var ref = obj.properties[i].ref; |
| 186 | var val = response.body[ref]; |
| 187 | assertTrue(!!val, 'Failed to lookup "' + obj.properties[i].name + '"'); |
| 188 | switch (obj.properties[i].name) { |
| 189 | case 'name': |
| 190 | assertEquals('string', val.type); |
| 191 | assertEquals("f", val.value); |
| 192 | count++; |
| 193 | break; |
| 194 | case 'length': |
| 195 | assertEquals('number', val.type); |
| 196 | assertEquals(1, val.value); |
| 197 | count++; |
| 198 | break; |
| 199 | case 'caller': |
| 200 | assertEquals('function', val.type); |
| 201 | assertEquals(handle_g, ref); |
| 202 | count++; |
| 203 | break; |
| 204 | } |
| 205 | } |
| 206 | assertEquals(3, count, 'Either "name", "length" or "caller" not found'); |
| 207 | |
| 208 | count = 0; |
| 209 | for (var handle in response.body) { |
| 210 | assertTrue(refs.indexOf(parseInt(handle)) != -1, |
| 211 | 'Handle not in the request: ' + handle); |
| 212 | count++; |
| 213 | } |
| 214 | assertEquals(count, obj.properties.length, |
| 215 | 'Unexpected number of resolved objects'); |
| 216 | |
| 217 | |
| 218 | // Indicate that all was processed. |
| 219 | listenerComplete = true; |
| 220 | } |
| 221 | } catch (e) { |
| 222 | exception = e |
| 223 | }; |
| 224 | }; |
| 225 | |
| 226 | // Add the debug event listener. |
| 227 | Debug.setListener(listener); |
| 228 | |
| 229 | function f(a) { |
| 230 | debugger; |
| 231 | }; |
| 232 | |
| 233 | function g(b) { |
| 234 | f(b); |
| 235 | }; |
| 236 | |
| 237 | // Set a break point at return in f and invoke g to hit the breakpoint. |
| 238 | Debug.setBreakPoint(f, 2, 0); |
| 239 | o = {}; |
| 240 | p = {} |
| 241 | o.o = o; |
| 242 | o.p = p; |
| 243 | p.o = o; |
| 244 | p.p = p; |
| 245 | g(o); |
| 246 | |
| 247 | // Make sure that the debug event listener vas invoked. |
| 248 | assertTrue(listenerComplete, "listener did not run to completion: " + exception); |
| 249 | assertFalse(exception, "exception in listener") |