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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "src/v8.h" | |
| 6 | |
| 7 #include "src/ast.h" | |
| 8 #include "src/ast-numbering.h" | |
| 9 #include "src/compiler.h" | |
| 10 #include "src/scopes.h" | |
| 11 | |
| 12 namespace v8 { | |
| 13 namespace internal { | |
| 14 | |
| 15 | |
| 16 class AstNumberingVisitor FINAL : public AstVisitor { | |
| 17 public: | |
| 18 explicit AstNumberingVisitor(Zone* zone) | |
| 19 : AstVisitor(), next_id_(BailoutId::FirstUsable().ToInt()) { | |
| 20 InitializeAstVisitor(zone); | |
| 21 } | |
| 22 | |
| 23 void Renumber(FunctionLiteral* node); | |
| 24 | |
| 25 private: | |
| 26 // AST node visitor interface. | |
| 27 #define DEFINE_VISIT(type) virtual void Visit##type(type* node); | |
| 28 AST_NODE_LIST(DEFINE_VISIT) | |
| 29 #undef DEFINE_VISIT | |
| 30 | |
| 31 void VisitStatements(ZoneList<Statement*>* statements); | |
| 32 void VisitDeclarations(ZoneList<Declaration*>* declarations); | |
| 33 void VisitArguments(ZoneList<Expression*>* arguments); | |
| 34 void VisitObjectLiteralProperty(ObjectLiteralProperty* property); | |
| 35 | |
| 36 int ReserveIdRange(int n) { | |
| 37 int tmp = next_id_; | |
| 38 next_id_ += n; | |
| 39 return tmp; | |
| 40 } | |
| 41 | |
| 42 int next_id_; | |
| 43 | |
| 44 DEFINE_AST_VISITOR_SUBCLASS_MEMBERS(); | |
| 45 DISALLOW_COPY_AND_ASSIGN(AstNumberingVisitor); | |
| 46 }; | |
| 47 | |
| 48 | |
| 49 void AstNumberingVisitor::VisitVariableDeclaration(VariableDeclaration* node) { | |
| 50 VisitVariableProxy(node->proxy()); | |
| 51 } | |
| 52 | |
| 53 | |
| 54 void AstNumberingVisitor::VisitExportDeclaration(ExportDeclaration* node) { | |
| 55 VisitVariableProxy(node->proxy()); | |
| 56 } | |
| 57 | |
| 58 | |
| 59 void AstNumberingVisitor::VisitModuleUrl(ModuleUrl* node) {} | |
| 60 | |
| 61 | |
| 62 void AstNumberingVisitor::VisitEmptyStatement(EmptyStatement* node) {} | |
| 63 | |
| 64 | |
| 65 void AstNumberingVisitor::VisitContinueStatement(ContinueStatement* node) {} | |
| 66 | |
| 67 | |
| 68 void AstNumberingVisitor::VisitBreakStatement(BreakStatement* node) {} | |
| 69 | |
| 70 | |
| 71 void AstNumberingVisitor::VisitDebuggerStatement(DebuggerStatement* node) { | |
| 72 node->set_base_id(ReserveIdRange(DebuggerStatement::num_ids())); | |
| 73 } | |
| 74 | |
| 75 | |
| 76 void AstNumberingVisitor::VisitNativeFunctionLiteral( | |
| 77 NativeFunctionLiteral* node) { | |
| 78 node->set_base_id(ReserveIdRange(NativeFunctionLiteral::num_ids())); | |
| 79 } | |
| 80 | |
| 81 | |
| 82 void AstNumberingVisitor::VisitLiteral(Literal* node) { | |
| 83 node->set_base_id(ReserveIdRange(Literal::num_ids())); | |
| 84 } | |
| 85 | |
| 86 | |
| 87 void AstNumberingVisitor::VisitRegExpLiteral(RegExpLiteral* node) { | |
| 88 node->set_base_id(ReserveIdRange(RegExpLiteral::num_ids())); | |
| 89 } | |
| 90 | |
| 91 | |
| 92 void AstNumberingVisitor::VisitVariableProxy(VariableProxy* node) { | |
| 93 node->set_base_id(ReserveIdRange(VariableProxy::num_ids())); | |
| 94 } | |
| 95 | |
| 96 | |
| 97 void AstNumberingVisitor::VisitThisFunction(ThisFunction* node) { | |
| 98 node->set_base_id(ReserveIdRange(ThisFunction::num_ids())); | |
| 99 } | |
| 100 | |
| 101 | |
| 102 void AstNumberingVisitor::VisitSuperReference(SuperReference* node) { | |
| 103 node->set_base_id(ReserveIdRange(SuperReference::num_ids())); | |
| 104 Visit(node->this_var()); | |
| 105 } | |
| 106 | |
| 107 | |
| 108 void AstNumberingVisitor::VisitModuleDeclaration(ModuleDeclaration* node) { | |
| 109 VisitVariableProxy(node->proxy()); | |
| 110 Visit(node->module()); | |
| 111 } | |
| 112 | |
| 113 | |
| 114 void AstNumberingVisitor::VisitImportDeclaration(ImportDeclaration* node) { | |
| 115 VisitVariableProxy(node->proxy()); | |
| 116 Visit(node->module()); | |
| 117 } | |
| 118 | |
| 119 | |
| 120 void AstNumberingVisitor::VisitModuleVariable(ModuleVariable* node) { | |
| 121 Visit(node->proxy()); | |
| 122 } | |
| 123 | |
| 124 | |
| 125 void AstNumberingVisitor::VisitModulePath(ModulePath* node) { | |
| 126 Visit(node->module()); | |
| 127 } | |
| 128 | |
| 129 | |
| 130 void AstNumberingVisitor::VisitModuleStatement(ModuleStatement* node) { | |
| 131 Visit(node->body()); | |
| 132 } | |
| 133 | |
| 134 | |
| 135 void AstNumberingVisitor::VisitExpressionStatement(ExpressionStatement* node) { | |
| 136 Visit(node->expression()); | |
| 137 } | |
| 138 | |
| 139 | |
| 140 void AstNumberingVisitor::VisitReturnStatement(ReturnStatement* node) { | |
| 141 Visit(node->expression()); | |
| 142 } | |
| 143 | |
| 144 | |
| 145 void AstNumberingVisitor::VisitYield(Yield* node) { | |
| 146 node->set_base_id(ReserveIdRange(Yield::num_ids())); | |
| 147 Visit(node->generator_object()); | |
| 148 Visit(node->expression()); | |
| 149 } | |
| 150 | |
| 151 | |
| 152 void AstNumberingVisitor::VisitThrow(Throw* node) { | |
| 153 node->set_base_id(ReserveIdRange(Throw::num_ids())); | |
| 154 Visit(node->exception()); | |
| 155 } | |
| 156 | |
| 157 | |
| 158 void AstNumberingVisitor::VisitUnaryOperation(UnaryOperation* node) { | |
| 159 node->set_base_id(ReserveIdRange(UnaryOperation::num_ids())); | |
| 160 Visit(node->expression()); | |
| 161 } | |
| 162 | |
| 163 | |
| 164 void AstNumberingVisitor::VisitCountOperation(CountOperation* node) { | |
| 165 node->set_base_id(ReserveIdRange(CountOperation::num_ids())); | |
| 166 Visit(node->expression()); | |
| 167 } | |
| 168 | |
| 169 | |
| 170 void AstNumberingVisitor::VisitBlock(Block* node) { | |
| 171 node->set_base_id(ReserveIdRange(Block::num_ids())); | |
| 172 if (node->scope() != NULL) VisitDeclarations(node->scope()->declarations()); | |
| 173 VisitStatements(node->statements()); | |
| 174 } | |
| 175 | |
| 176 | |
| 177 void AstNumberingVisitor::VisitFunctionDeclaration(FunctionDeclaration* node) { | |
| 178 VisitVariableProxy(node->proxy()); | |
| 179 VisitFunctionLiteral(node->fun()); | |
| 180 } | |
| 181 | |
| 182 | |
| 183 void AstNumberingVisitor::VisitModuleLiteral(ModuleLiteral* node) { | |
| 184 VisitBlock(node->body()); | |
| 185 } | |
| 186 | |
| 187 | |
| 188 void AstNumberingVisitor::VisitCallRuntime(CallRuntime* node) { | |
| 189 node->set_base_id(ReserveIdRange(CallRuntime::num_ids())); | |
| 190 VisitArguments(node->arguments()); | |
| 191 } | |
| 192 | |
| 193 | |
| 194 void AstNumberingVisitor::VisitWithStatement(WithStatement* node) { | |
| 195 Visit(node->expression()); | |
| 196 Visit(node->statement()); | |
| 197 } | |
| 198 | |
| 199 | |
| 200 void AstNumberingVisitor::VisitDoWhileStatement(DoWhileStatement* node) { | |
| 201 node->set_base_id(ReserveIdRange(DoWhileStatement::num_ids())); | |
| 202 Visit(node->body()); | |
| 203 Visit(node->cond()); | |
| 204 } | |
| 205 | |
| 206 | |
| 207 void AstNumberingVisitor::VisitWhileStatement(WhileStatement* node) { | |
| 208 node->set_base_id(ReserveIdRange(WhileStatement::num_ids())); | |
| 209 Visit(node->cond()); | |
| 210 Visit(node->body()); | |
| 211 } | |
| 212 | |
| 213 | |
| 214 void AstNumberingVisitor::VisitTryCatchStatement(TryCatchStatement* node) { | |
| 215 Visit(node->try_block()); | |
| 216 Visit(node->catch_block()); | |
| 217 } | |
| 218 | |
| 219 | |
| 220 void AstNumberingVisitor::VisitTryFinallyStatement(TryFinallyStatement* node) { | |
| 221 Visit(node->try_block()); | |
| 222 Visit(node->finally_block()); | |
| 223 } | |
| 224 | |
| 225 | |
| 226 void AstNumberingVisitor::VisitProperty(Property* node) { | |
| 227 node->set_base_id(ReserveIdRange(Property::num_ids())); | |
| 228 Visit(node->key()); | |
| 229 Visit(node->obj()); | |
| 230 } | |
| 231 | |
| 232 | |
| 233 void AstNumberingVisitor::VisitAssignment(Assignment* node) { | |
| 234 node->set_base_id(ReserveIdRange(Assignment::num_ids())); | |
| 235 if (node->is_compound()) VisitBinaryOperation(node->binary_operation()); | |
| 236 Visit(node->target()); | |
| 237 Visit(node->value()); | |
| 238 } | |
| 239 | |
| 240 | |
| 241 void AstNumberingVisitor::VisitBinaryOperation(BinaryOperation* node) { | |
| 242 node->set_base_id(ReserveIdRange(BinaryOperation::num_ids())); | |
| 243 Visit(node->left()); | |
| 244 Visit(node->right()); | |
| 245 } | |
| 246 | |
| 247 | |
| 248 void AstNumberingVisitor::VisitCompareOperation(CompareOperation* node) { | |
| 249 node->set_base_id(ReserveIdRange(CompareOperation::num_ids())); | |
| 250 Visit(node->left()); | |
| 251 Visit(node->right()); | |
| 252 } | |
| 253 | |
| 254 | |
| 255 void AstNumberingVisitor::VisitForInStatement(ForInStatement* node) { | |
| 256 node->set_base_id(ReserveIdRange(ForInStatement::num_ids())); | |
| 257 Visit(node->each()); | |
| 258 Visit(node->enumerable()); | |
| 259 Visit(node->body()); | |
| 260 } | |
| 261 | |
| 262 | |
| 263 void AstNumberingVisitor::VisitForOfStatement(ForOfStatement* node) { | |
| 264 node->set_base_id(ReserveIdRange(ForOfStatement::num_ids())); | |
| 265 Visit(node->assign_iterator()); | |
| 266 Visit(node->next_result()); | |
| 267 Visit(node->result_done()); | |
| 268 Visit(node->assign_each()); | |
| 269 Visit(node->body()); | |
| 270 } | |
| 271 | |
| 272 | |
| 273 void AstNumberingVisitor::VisitConditional(Conditional* node) { | |
| 274 node->set_base_id(ReserveIdRange(Conditional::num_ids())); | |
| 275 Visit(node->condition()); | |
| 276 Visit(node->then_expression()); | |
| 277 Visit(node->else_expression()); | |
| 278 } | |
| 279 | |
| 280 | |
| 281 void AstNumberingVisitor::VisitIfStatement(IfStatement* node) { | |
| 282 node->set_base_id(ReserveIdRange(IfStatement::num_ids())); | |
| 283 Visit(node->condition()); | |
| 284 Visit(node->then_statement()); | |
| 285 if (node->HasElseStatement()) { | |
| 286 Visit(node->else_statement()); | |
| 287 } | |
| 288 } | |
| 289 | |
| 290 | |
| 291 void AstNumberingVisitor::VisitSwitchStatement(SwitchStatement* node) { | |
| 292 node->set_base_id(ReserveIdRange(SwitchStatement::num_ids())); | |
| 293 Visit(node->tag()); | |
| 294 ZoneList<CaseClause*>* cases = node->cases(); | |
| 295 for (int i = 0; i < cases->length(); i++) { | |
| 296 VisitCaseClause(cases->at(i)); | |
| 297 } | |
| 298 } | |
| 299 | |
| 300 | |
| 301 void AstNumberingVisitor::VisitCaseClause(CaseClause* node) { | |
| 302 node->set_base_id(ReserveIdRange(CaseClause::num_ids())); | |
| 303 if (!node->is_default()) Visit(node->label()); | |
| 304 VisitStatements(node->statements()); | |
| 305 } | |
| 306 | |
| 307 | |
| 308 void AstNumberingVisitor::VisitForStatement(ForStatement* node) { | |
| 309 node->set_base_id(ReserveIdRange(ForStatement::num_ids())); | |
| 310 if (node->init() != NULL) Visit(node->init()); | |
| 311 if (node->cond() != NULL) Visit(node->cond()); | |
| 312 if (node->next() != NULL) Visit(node->next()); | |
| 313 Visit(node->body()); | |
| 314 } | |
| 315 | |
| 316 | |
| 317 void AstNumberingVisitor::VisitClassLiteral(ClassLiteral* node) { | |
| 318 node->set_base_id(ReserveIdRange(ClassLiteral::num_ids())); | |
| 319 if (node->extends()) Visit(node->extends()); | |
| 320 if (node->constructor()) Visit(node->constructor()); | |
| 321 for (int i = 0; i < node->properties()->length(); i++) { | |
| 322 VisitObjectLiteralProperty(node->properties()->at(i)); | |
| 323 } | |
| 324 } | |
| 325 | |
| 326 | |
| 327 void AstNumberingVisitor::VisitObjectLiteral(ObjectLiteral* node) { | |
| 328 node->set_base_id(ReserveIdRange(ObjectLiteral::num_ids())); | |
| 329 for (int i = 0; i < node->properties()->length(); i++) { | |
| 330 VisitObjectLiteralProperty(node->properties()->at(i)); | |
| 331 } | |
| 332 } | |
| 333 | |
| 334 | |
| 335 void AstNumberingVisitor::VisitObjectLiteralProperty( | |
| 336 ObjectLiteralProperty* node) { | |
| 337 Visit(node->key()); | |
| 338 Visit(node->value()); | |
| 339 } | |
| 340 | |
| 341 | |
| 342 void AstNumberingVisitor::VisitArrayLiteral(ArrayLiteral* node) { | |
| 343 node->set_base_id(ReserveIdRange(node->num_ids())); | |
| 344 for (int i = 0; i < node->values()->length(); i++) { | |
| 345 Visit(node->values()->at(i)); | |
| 346 } | |
| 347 } | |
| 348 | |
| 349 | |
| 350 void AstNumberingVisitor::VisitCall(Call* node) { | |
| 351 node->set_base_id(ReserveIdRange(Call::num_ids())); | |
| 352 Visit(node->expression()); | |
| 353 VisitArguments(node->arguments()); | |
| 354 } | |
| 355 | |
| 356 | |
| 357 void AstNumberingVisitor::VisitCallNew(CallNew* node) { | |
| 358 node->set_base_id(ReserveIdRange(CallNew::num_ids())); | |
| 359 Visit(node->expression()); | |
| 360 VisitArguments(node->arguments()); | |
| 361 } | |
| 362 | |
| 363 | |
| 364 void AstNumberingVisitor::VisitStatements(ZoneList<Statement*>* statements) { | |
| 365 if (statements == NULL) return; | |
| 366 for (int i = 0; i < statements->length(); i++) { | |
| 367 Visit(statements->at(i)); | |
| 368 } | |
| 369 } | |
| 370 | |
| 371 | |
| 372 void AstNumberingVisitor::VisitDeclarations( | |
| 373 ZoneList<Declaration*>* declarations) { | |
| 374 for (int i = 0; i < declarations->length(); i++) { | |
| 375 Visit(declarations->at(i)); | |
| 376 } | |
| 377 } | |
| 378 | |
| 379 | |
| 380 void AstNumberingVisitor::VisitArguments(ZoneList<Expression*>* arguments) { | |
| 381 for (int i = 0; i < arguments->length(); i++) { | |
| 382 Visit(arguments->at(i)); | |
| 383 } | |
| 384 } | |
| 385 | |
| 386 | |
| 387 void AstNumberingVisitor::VisitFunctionLiteral(FunctionLiteral* node) { | |
| 388 node->set_base_id(ReserveIdRange(FunctionLiteral::num_ids())); | |
| 389 // We don't recurse into the declarations or body of the function literal: | |
| 390 // you have to separately Renumber() each FunctionLiteral that you compile. | |
| 391 } | |
| 392 | |
| 393 | |
| 394 void AstNumberingVisitor::Renumber(FunctionLiteral* node) { | |
| 395 if (node->scope()->HasIllegalRedeclaration()) { | |
| 396 node->scope()->VisitIllegalRedeclaration(this); | |
| 397 return; | |
| 398 } | |
| 399 | |
| 400 Scope* scope = node->scope(); | |
| 401 VisitDeclarations(scope->declarations()); | |
| 402 if (scope->is_function_scope() && scope->function() != NULL) { | |
| 403 // Visit the name of the named function expression. | |
| 404 Visit(scope->function()); | |
| 405 } | |
| 406 VisitStatements(node->body()); | |
| 407 } | |
| 408 | |
| 409 | |
| 410 bool AstNumbering::Renumber(FunctionLiteral* function, Zone* zone) { | |
| 411 AstNumberingVisitor visitor(zone); | |
| 412 visitor.Renumber(function); | |
| 413 return !visitor.HasStackOverflow(); | |
| 414 } | |
| 415 } | |
| 416 } // namespace v8::internal | |
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Chromium Code Reviews
Issue 652543006:
Revert "Assign bailout and type feedback IDs in a post-pass" (Closed)
Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge