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1 // Copyright 2012 the V8 project authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/ast/ast-numbering.h" | 5 #include "src/ast/ast-numbering.h" |
6 | 6 |
7 #include "src/ast/ast.h" | 7 #include "src/ast/ast.h" |
8 #include "src/ast/scopes.h" | 8 #include "src/ast/scopes.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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32 AST_NODE_LIST(DEFINE_VISIT) | 32 AST_NODE_LIST(DEFINE_VISIT) |
33 #undef DEFINE_VISIT | 33 #undef DEFINE_VISIT |
34 | 34 |
35 void VisitVariableProxyReference(VariableProxy* node); | 35 void VisitVariableProxyReference(VariableProxy* node); |
36 void VisitPropertyReference(Property* node); | 36 void VisitPropertyReference(Property* node); |
37 void VisitReference(Expression* expr); | 37 void VisitReference(Expression* expr); |
38 | 38 |
39 void VisitStatements(ZoneList<Statement*>* statements); | 39 void VisitStatements(ZoneList<Statement*>* statements); |
40 void VisitDeclarations(ZoneList<Declaration*>* declarations); | 40 void VisitDeclarations(ZoneList<Declaration*>* declarations); |
41 void VisitArguments(ZoneList<Expression*>* arguments); | 41 void VisitArguments(ZoneList<Expression*>* arguments); |
42 void VisitObjectLiteralProperty(ObjectLiteralProperty* property); | 42 void VisitLiteralProperty(LiteralProperty* property); |
43 | 43 |
44 int ReserveIdRange(int n) { | 44 int ReserveIdRange(int n) { |
45 int tmp = next_id_; | 45 int tmp = next_id_; |
46 next_id_ += n; | 46 next_id_ += n; |
47 return tmp; | 47 return tmp; |
48 } | 48 } |
49 | 49 |
50 void IncrementNodeCount() { properties_.add_node_count(1); } | 50 void IncrementNodeCount() { properties_.add_node_count(1); } |
51 void DisableSelfOptimization() { | 51 void DisableSelfOptimization() { |
52 properties_.flags() |= AstProperties::kDontSelfOptimize; | 52 properties_.flags() |= AstProperties::kDontSelfOptimize; |
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457 void AstNumberingVisitor::VisitClassLiteral(ClassLiteral* node) { | 457 void AstNumberingVisitor::VisitClassLiteral(ClassLiteral* node) { |
458 IncrementNodeCount(); | 458 IncrementNodeCount(); |
459 DisableCrankshaft(kClassLiteral); | 459 DisableCrankshaft(kClassLiteral); |
460 node->set_base_id(ReserveIdRange(node->num_ids())); | 460 node->set_base_id(ReserveIdRange(node->num_ids())); |
461 if (node->extends()) Visit(node->extends()); | 461 if (node->extends()) Visit(node->extends()); |
462 if (node->constructor()) Visit(node->constructor()); | 462 if (node->constructor()) Visit(node->constructor()); |
463 if (node->class_variable_proxy()) { | 463 if (node->class_variable_proxy()) { |
464 VisitVariableProxy(node->class_variable_proxy()); | 464 VisitVariableProxy(node->class_variable_proxy()); |
465 } | 465 } |
466 for (int i = 0; i < node->properties()->length(); i++) { | 466 for (int i = 0; i < node->properties()->length(); i++) { |
467 VisitObjectLiteralProperty(node->properties()->at(i)); | 467 VisitLiteralProperty(node->properties()->at(i)); |
468 } | 468 } |
469 ReserveFeedbackSlots(node); | 469 ReserveFeedbackSlots(node); |
470 } | 470 } |
471 | 471 |
472 | 472 |
473 void AstNumberingVisitor::VisitObjectLiteral(ObjectLiteral* node) { | 473 void AstNumberingVisitor::VisitObjectLiteral(ObjectLiteral* node) { |
474 IncrementNodeCount(); | 474 IncrementNodeCount(); |
475 node->set_base_id(ReserveIdRange(node->num_ids())); | 475 node->set_base_id(ReserveIdRange(node->num_ids())); |
476 for (int i = 0; i < node->properties()->length(); i++) { | 476 for (int i = 0; i < node->properties()->length(); i++) { |
477 VisitObjectLiteralProperty(node->properties()->at(i)); | 477 VisitLiteralProperty(node->properties()->at(i)); |
478 } | 478 } |
479 node->BuildConstantProperties(isolate_); | 479 node->BuildConstantProperties(isolate_); |
480 // Mark all computed expressions that are bound to a key that | 480 // Mark all computed expressions that are bound to a key that |
481 // is shadowed by a later occurrence of the same key. For the | 481 // is shadowed by a later occurrence of the same key. For the |
482 // marked expressions, no store code will be is emitted. | 482 // marked expressions, no store code will be is emitted. |
483 node->CalculateEmitStore(zone_); | 483 node->CalculateEmitStore(zone_); |
484 ReserveFeedbackSlots(node); | 484 ReserveFeedbackSlots(node); |
485 } | 485 } |
486 | 486 |
487 | 487 void AstNumberingVisitor::VisitLiteralProperty(LiteralProperty* node) { |
488 void AstNumberingVisitor::VisitObjectLiteralProperty( | |
489 ObjectLiteralProperty* node) { | |
490 if (node->is_computed_name()) DisableCrankshaft(kComputedPropertyName); | 488 if (node->is_computed_name()) DisableCrankshaft(kComputedPropertyName); |
491 Visit(node->key()); | 489 Visit(node->key()); |
492 Visit(node->value()); | 490 Visit(node->value()); |
493 } | 491 } |
494 | 492 |
495 | |
496 void AstNumberingVisitor::VisitArrayLiteral(ArrayLiteral* node) { | 493 void AstNumberingVisitor::VisitArrayLiteral(ArrayLiteral* node) { |
497 IncrementNodeCount(); | 494 IncrementNodeCount(); |
498 node->set_base_id(ReserveIdRange(node->num_ids())); | 495 node->set_base_id(ReserveIdRange(node->num_ids())); |
499 for (int i = 0; i < node->values()->length(); i++) { | 496 for (int i = 0; i < node->values()->length(); i++) { |
500 Visit(node->values()->at(i)); | 497 Visit(node->values()->at(i)); |
501 } | 498 } |
502 node->BuildConstantElements(isolate_); | 499 node->BuildConstantElements(isolate_); |
503 ReserveFeedbackSlots(node); | 500 ReserveFeedbackSlots(node); |
504 } | 501 } |
505 | 502 |
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590 } | 587 } |
591 | 588 |
592 | 589 |
593 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone, | 590 bool AstNumbering::Renumber(Isolate* isolate, Zone* zone, |
594 FunctionLiteral* function) { | 591 FunctionLiteral* function) { |
595 AstNumberingVisitor visitor(isolate, zone); | 592 AstNumberingVisitor visitor(isolate, zone); |
596 return visitor.Renumber(function); | 593 return visitor.Renumber(function); |
597 } | 594 } |
598 } // namespace internal | 595 } // namespace internal |
599 } // namespace v8 | 596 } // namespace v8 |
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