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 | #include <v8.h> |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 29 | #include <v8-testing.h> |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame^] | 30 | #include <assert.h> |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 31 | #include <fcntl.h> |
| 32 | #include <string.h> |
| 33 | #include <stdio.h> |
| 34 | #include <stdlib.h> |
| 35 | |
| 36 | |
| 37 | void RunShell(v8::Handle<v8::Context> context); |
| 38 | bool ExecuteString(v8::Handle<v8::String> source, |
| 39 | v8::Handle<v8::Value> name, |
| 40 | bool print_result, |
| 41 | bool report_exceptions); |
| 42 | v8::Handle<v8::Value> Print(const v8::Arguments& args); |
| 43 | v8::Handle<v8::Value> Read(const v8::Arguments& args); |
| 44 | v8::Handle<v8::Value> Load(const v8::Arguments& args); |
| 45 | v8::Handle<v8::Value> Quit(const v8::Arguments& args); |
| 46 | v8::Handle<v8::Value> Version(const v8::Arguments& args); |
| 47 | v8::Handle<v8::String> ReadFile(const char* name); |
| 48 | void ReportException(v8::TryCatch* handler); |
| 49 | |
| 50 | |
| 51 | int RunMain(int argc, char* argv[]) { |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 52 | v8::HandleScope handle_scope; |
| 53 | // Create a template for the global object. |
| 54 | v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New(); |
| 55 | // Bind the global 'print' function to the C++ Print callback. |
| 56 | global->Set(v8::String::New("print"), v8::FunctionTemplate::New(Print)); |
| 57 | // Bind the global 'read' function to the C++ Read callback. |
| 58 | global->Set(v8::String::New("read"), v8::FunctionTemplate::New(Read)); |
| 59 | // Bind the global 'load' function to the C++ Load callback. |
| 60 | global->Set(v8::String::New("load"), v8::FunctionTemplate::New(Load)); |
| 61 | // Bind the 'quit' function |
| 62 | global->Set(v8::String::New("quit"), v8::FunctionTemplate::New(Quit)); |
| 63 | // Bind the 'version' function |
| 64 | global->Set(v8::String::New("version"), v8::FunctionTemplate::New(Version)); |
| 65 | // Create a new execution environment containing the built-in |
| 66 | // functions |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 67 | v8::Persistent<v8::Context> context = v8::Context::New(NULL, global); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 68 | bool run_shell = (argc == 1); |
| 69 | for (int i = 1; i < argc; i++) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 70 | // Enter the execution environment before evaluating any code. |
| 71 | v8::Context::Scope context_scope(context); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 72 | const char* str = argv[i]; |
| 73 | if (strcmp(str, "--shell") == 0) { |
| 74 | run_shell = true; |
| 75 | } else if (strcmp(str, "-f") == 0) { |
| 76 | // Ignore any -f flags for compatibility with the other stand- |
| 77 | // alone JavaScript engines. |
| 78 | continue; |
| 79 | } else if (strncmp(str, "--", 2) == 0) { |
| 80 | printf("Warning: unknown flag %s.\nTry --help for options\n", str); |
| 81 | } else if (strcmp(str, "-e") == 0 && i + 1 < argc) { |
| 82 | // Execute argument given to -e option directly |
| 83 | v8::HandleScope handle_scope; |
| 84 | v8::Handle<v8::String> file_name = v8::String::New("unnamed"); |
| 85 | v8::Handle<v8::String> source = v8::String::New(argv[i + 1]); |
| 86 | if (!ExecuteString(source, file_name, false, true)) |
| 87 | return 1; |
| 88 | i++; |
| 89 | } else { |
| 90 | // Use all other arguments as names of files to load and run. |
| 91 | v8::HandleScope handle_scope; |
| 92 | v8::Handle<v8::String> file_name = v8::String::New(str); |
| 93 | v8::Handle<v8::String> source = ReadFile(str); |
| 94 | if (source.IsEmpty()) { |
| 95 | printf("Error reading '%s'\n", str); |
| 96 | return 1; |
| 97 | } |
| 98 | if (!ExecuteString(source, file_name, false, true)) |
| 99 | return 1; |
| 100 | } |
| 101 | } |
| 102 | if (run_shell) RunShell(context); |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 103 | context.Dispose(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | |
| 108 | int main(int argc, char* argv[]) { |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 109 | // Figure out if we're requested to stress the optimization |
| 110 | // infrastructure by running tests multiple times and forcing |
| 111 | // optimization in the last run. |
| 112 | bool FLAG_stress_opt = false; |
| 113 | bool FLAG_stress_deopt = false; |
| 114 | for (int i = 0; i < argc; i++) { |
| 115 | if (strcmp(argv[i], "--stress-opt") == 0) { |
| 116 | FLAG_stress_opt = true; |
| 117 | argv[i] = NULL; |
| 118 | } else if (strcmp(argv[i], "--stress-deopt") == 0) { |
| 119 | FLAG_stress_deopt = true; |
| 120 | argv[i] = NULL; |
| 121 | } else if (strcmp(argv[i], "--noalways-opt") == 0) { |
| 122 | // No support for stressing if we can't use --always-opt. |
| 123 | FLAG_stress_opt = false; |
| 124 | FLAG_stress_deopt = false; |
| 125 | break; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | v8::V8::SetFlagsFromCommandLine(&argc, argv, true); |
| 130 | int result = 0; |
| 131 | if (FLAG_stress_opt || FLAG_stress_deopt) { |
| 132 | v8::Testing::SetStressRunType(FLAG_stress_opt |
| 133 | ? v8::Testing::kStressTypeOpt |
| 134 | : v8::Testing::kStressTypeDeopt); |
| 135 | int stress_runs = v8::Testing::GetStressRuns(); |
| 136 | for (int i = 0; i < stress_runs && result == 0; i++) { |
| 137 | printf("============ Stress %d/%d ============\n", |
| 138 | i + 1, stress_runs); |
| 139 | v8::Testing::PrepareStressRun(i); |
| 140 | result = RunMain(argc, argv); |
| 141 | } |
| 142 | } else { |
| 143 | result = RunMain(argc, argv); |
| 144 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 145 | v8::V8::Dispose(); |
| 146 | return result; |
| 147 | } |
| 148 | |
| 149 | |
| 150 | // Extracts a C string from a V8 Utf8Value. |
| 151 | const char* ToCString(const v8::String::Utf8Value& value) { |
| 152 | return *value ? *value : "<string conversion failed>"; |
| 153 | } |
| 154 | |
| 155 | |
| 156 | // The callback that is invoked by v8 whenever the JavaScript 'print' |
| 157 | // function is called. Prints its arguments on stdout separated by |
| 158 | // spaces and ending with a newline. |
| 159 | v8::Handle<v8::Value> Print(const v8::Arguments& args) { |
| 160 | bool first = true; |
| 161 | for (int i = 0; i < args.Length(); i++) { |
| 162 | v8::HandleScope handle_scope; |
| 163 | if (first) { |
| 164 | first = false; |
| 165 | } else { |
| 166 | printf(" "); |
| 167 | } |
| 168 | v8::String::Utf8Value str(args[i]); |
| 169 | const char* cstr = ToCString(str); |
| 170 | printf("%s", cstr); |
| 171 | } |
| 172 | printf("\n"); |
| 173 | fflush(stdout); |
| 174 | return v8::Undefined(); |
| 175 | } |
| 176 | |
| 177 | |
| 178 | // The callback that is invoked by v8 whenever the JavaScript 'read' |
| 179 | // function is called. This function loads the content of the file named in |
| 180 | // the argument into a JavaScript string. |
| 181 | v8::Handle<v8::Value> Read(const v8::Arguments& args) { |
| 182 | if (args.Length() != 1) { |
| 183 | return v8::ThrowException(v8::String::New("Bad parameters")); |
| 184 | } |
| 185 | v8::String::Utf8Value file(args[0]); |
| 186 | if (*file == NULL) { |
| 187 | return v8::ThrowException(v8::String::New("Error loading file")); |
| 188 | } |
| 189 | v8::Handle<v8::String> source = ReadFile(*file); |
| 190 | if (source.IsEmpty()) { |
| 191 | return v8::ThrowException(v8::String::New("Error loading file")); |
| 192 | } |
| 193 | return source; |
| 194 | } |
| 195 | |
| 196 | |
| 197 | // The callback that is invoked by v8 whenever the JavaScript 'load' |
| 198 | // function is called. Loads, compiles and executes its argument |
| 199 | // JavaScript file. |
| 200 | v8::Handle<v8::Value> Load(const v8::Arguments& args) { |
| 201 | for (int i = 0; i < args.Length(); i++) { |
| 202 | v8::HandleScope handle_scope; |
| 203 | v8::String::Utf8Value file(args[i]); |
| 204 | if (*file == NULL) { |
| 205 | return v8::ThrowException(v8::String::New("Error loading file")); |
| 206 | } |
| 207 | v8::Handle<v8::String> source = ReadFile(*file); |
| 208 | if (source.IsEmpty()) { |
| 209 | return v8::ThrowException(v8::String::New("Error loading file")); |
| 210 | } |
| 211 | if (!ExecuteString(source, v8::String::New(*file), false, false)) { |
| 212 | return v8::ThrowException(v8::String::New("Error executing file")); |
| 213 | } |
| 214 | } |
| 215 | return v8::Undefined(); |
| 216 | } |
| 217 | |
| 218 | |
| 219 | // The callback that is invoked by v8 whenever the JavaScript 'quit' |
| 220 | // function is called. Quits. |
| 221 | v8::Handle<v8::Value> Quit(const v8::Arguments& args) { |
| 222 | // If not arguments are given args[0] will yield undefined which |
| 223 | // converts to the integer value 0. |
| 224 | int exit_code = args[0]->Int32Value(); |
| 225 | exit(exit_code); |
| 226 | return v8::Undefined(); |
| 227 | } |
| 228 | |
| 229 | |
| 230 | v8::Handle<v8::Value> Version(const v8::Arguments& args) { |
| 231 | return v8::String::New(v8::V8::GetVersion()); |
| 232 | } |
| 233 | |
| 234 | |
| 235 | // Reads a file into a v8 string. |
| 236 | v8::Handle<v8::String> ReadFile(const char* name) { |
| 237 | FILE* file = fopen(name, "rb"); |
| 238 | if (file == NULL) return v8::Handle<v8::String>(); |
| 239 | |
| 240 | fseek(file, 0, SEEK_END); |
| 241 | int size = ftell(file); |
| 242 | rewind(file); |
| 243 | |
| 244 | char* chars = new char[size + 1]; |
| 245 | chars[size] = '\0'; |
| 246 | for (int i = 0; i < size;) { |
| 247 | int read = fread(&chars[i], 1, size - i, file); |
| 248 | i += read; |
| 249 | } |
| 250 | fclose(file); |
| 251 | v8::Handle<v8::String> result = v8::String::New(chars, size); |
| 252 | delete[] chars; |
| 253 | return result; |
| 254 | } |
| 255 | |
| 256 | |
| 257 | // The read-eval-execute loop of the shell. |
| 258 | void RunShell(v8::Handle<v8::Context> context) { |
| 259 | printf("V8 version %s\n", v8::V8::GetVersion()); |
| 260 | static const int kBufferSize = 256; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 261 | // Enter the execution environment before evaluating any code. |
| 262 | v8::Context::Scope context_scope(context); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 263 | while (true) { |
| 264 | char buffer[kBufferSize]; |
| 265 | printf("> "); |
| 266 | char* str = fgets(buffer, kBufferSize, stdin); |
| 267 | if (str == NULL) break; |
| 268 | v8::HandleScope handle_scope; |
| 269 | ExecuteString(v8::String::New(str), |
| 270 | v8::String::New("(shell)"), |
| 271 | true, |
| 272 | true); |
| 273 | } |
| 274 | printf("\n"); |
| 275 | } |
| 276 | |
| 277 | |
| 278 | // Executes a string within the current v8 context. |
| 279 | bool ExecuteString(v8::Handle<v8::String> source, |
| 280 | v8::Handle<v8::Value> name, |
| 281 | bool print_result, |
| 282 | bool report_exceptions) { |
| 283 | v8::HandleScope handle_scope; |
| 284 | v8::TryCatch try_catch; |
| 285 | v8::Handle<v8::Script> script = v8::Script::Compile(source, name); |
| 286 | if (script.IsEmpty()) { |
| 287 | // Print errors that happened during compilation. |
| 288 | if (report_exceptions) |
| 289 | ReportException(&try_catch); |
| 290 | return false; |
| 291 | } else { |
| 292 | v8::Handle<v8::Value> result = script->Run(); |
| 293 | if (result.IsEmpty()) { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame^] | 294 | assert(try_catch.HasCaught()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 295 | // Print errors that happened during execution. |
| 296 | if (report_exceptions) |
| 297 | ReportException(&try_catch); |
| 298 | return false; |
| 299 | } else { |
Ben Murdoch | e0cee9b | 2011-05-25 10:26:03 +0100 | [diff] [blame^] | 300 | assert(!try_catch.HasCaught()); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 301 | if (print_result && !result->IsUndefined()) { |
| 302 | // If all went well and the result wasn't undefined then print |
| 303 | // the returned value. |
| 304 | v8::String::Utf8Value str(result); |
| 305 | const char* cstr = ToCString(str); |
| 306 | printf("%s\n", cstr); |
| 307 | } |
| 308 | return true; |
| 309 | } |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | |
| 314 | void ReportException(v8::TryCatch* try_catch) { |
| 315 | v8::HandleScope handle_scope; |
| 316 | v8::String::Utf8Value exception(try_catch->Exception()); |
| 317 | const char* exception_string = ToCString(exception); |
| 318 | v8::Handle<v8::Message> message = try_catch->Message(); |
| 319 | if (message.IsEmpty()) { |
| 320 | // V8 didn't provide any extra information about this error; just |
| 321 | // print the exception. |
| 322 | printf("%s\n", exception_string); |
| 323 | } else { |
| 324 | // Print (filename):(line number): (message). |
| 325 | v8::String::Utf8Value filename(message->GetScriptResourceName()); |
| 326 | const char* filename_string = ToCString(filename); |
| 327 | int linenum = message->GetLineNumber(); |
| 328 | printf("%s:%i: %s\n", filename_string, linenum, exception_string); |
| 329 | // Print line of source code. |
| 330 | v8::String::Utf8Value sourceline(message->GetSourceLine()); |
| 331 | const char* sourceline_string = ToCString(sourceline); |
| 332 | printf("%s\n", sourceline_string); |
| 333 | // Print wavy underline (GetUnderline is deprecated). |
| 334 | int start = message->GetStartColumn(); |
| 335 | for (int i = 0; i < start; i++) { |
| 336 | printf(" "); |
| 337 | } |
| 338 | int end = message->GetEndColumn(); |
| 339 | for (int i = start; i < end; i++) { |
| 340 | printf("^"); |
| 341 | } |
| 342 | printf("\n"); |
Kristian Monsen | 25f6136 | 2010-05-21 11:50:48 +0100 | [diff] [blame] | 343 | v8::String::Utf8Value stack_trace(try_catch->StackTrace()); |
| 344 | if (stack_trace.length() > 0) { |
| 345 | const char* stack_trace_string = ToCString(stack_trace); |
| 346 | printf("%s\n", stack_trace_string); |
| 347 | } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 348 | } |
| 349 | } |