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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_ARM64 | 7 #if V8_TARGET_ARCH_ARM64 |
8 | 8 |
9 #include "src/code-factory.h" | 9 #include "src/code-factory.h" |
10 #include "src/code-stubs.h" | 10 #include "src/code-stubs.h" |
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1512 // | 1512 // |
1513 // The condition on the declaration scopes is a conservative check for | 1513 // The condition on the declaration scopes is a conservative check for |
1514 // nested functions that access a binding and are called before the | 1514 // nested functions that access a binding and are called before the |
1515 // binding is initialized: | 1515 // binding is initialized: |
1516 // function() { f(); let x = 1; function f() { x = 2; } } | 1516 // function() { f(); let x = 1; function f() { x = 2; } } |
1517 // | 1517 // |
1518 bool skip_init_check; | 1518 bool skip_init_check; |
1519 if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) { | 1519 if (var->scope()->DeclarationScope() != scope()->DeclarationScope()) { |
1520 skip_init_check = false; | 1520 skip_init_check = false; |
1521 } else if (var->is_this()) { | 1521 } else if (var->is_this()) { |
1522 CHECK((info_->shared_info()->kind() & kSubclassConstructor) != 0); | 1522 CHECK(info_->function() != nullptr && |
| 1523 (info_->function()->kind() & kSubclassConstructor) != 0); |
1523 // TODO(dslomov): implement 'this' hole check elimination. | 1524 // TODO(dslomov): implement 'this' hole check elimination. |
1524 skip_init_check = false; | 1525 skip_init_check = false; |
1525 } else { | 1526 } else { |
1526 // Check that we always have valid source position. | 1527 // Check that we always have valid source position. |
1527 DCHECK(var->initializer_position() != RelocInfo::kNoPosition); | 1528 DCHECK(var->initializer_position() != RelocInfo::kNoPosition); |
1528 DCHECK(proxy->position() != RelocInfo::kNoPosition); | 1529 DCHECK(proxy->position() != RelocInfo::kNoPosition); |
1529 skip_init_check = var->mode() != CONST_LEGACY && | 1530 skip_init_check = var->mode() != CONST_LEGACY && |
1530 var->initializer_position() < proxy->position(); | 1531 var->initializer_position() < proxy->position(); |
1531 } | 1532 } |
1532 | 1533 |
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5400 return previous_; | 5401 return previous_; |
5401 } | 5402 } |
5402 | 5403 |
5403 | 5404 |
5404 #undef __ | 5405 #undef __ |
5405 | 5406 |
5406 | 5407 |
5407 } } // namespace v8::internal | 5408 } } // namespace v8::internal |
5408 | 5409 |
5409 #endif // V8_TARGET_ARCH_ARM64 | 5410 #endif // V8_TARGET_ARCH_ARM64 |
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