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Issue 2387593002: Revert of Reland: [modules] Properly initialize declared variables. (Closed)
Patch Set: Created 4 years, 2 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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/bootstrapper.h" 5 #include "src/bootstrapper.h"
6 6
7 #include "src/accessors.h" 7 #include "src/accessors.h"
8 #include "src/api-natives.h" 8 #include "src/api-natives.h"
9 #include "src/base/ieee754.h" 9 #include "src/base/ieee754.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
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696 factory()->to_string_tag_symbol(), 696 factory()->to_string_tag_symbol(),
697 factory()->NewStringFromAsciiChecked("Generator"), 697 factory()->NewStringFromAsciiChecked("Generator"),
698 static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY)); 698 static_cast<PropertyAttributes>(DONT_ENUM | READ_ONLY));
699 SimpleInstallFunction(generator_object_prototype, "next", 699 SimpleInstallFunction(generator_object_prototype, "next",
700 Builtins::kGeneratorPrototypeNext, 1, true); 700 Builtins::kGeneratorPrototypeNext, 1, true);
701 SimpleInstallFunction(generator_object_prototype, "return", 701 SimpleInstallFunction(generator_object_prototype, "return",
702 Builtins::kGeneratorPrototypeReturn, 1, true); 702 Builtins::kGeneratorPrototypeReturn, 1, true);
703 SimpleInstallFunction(generator_object_prototype, "throw", 703 SimpleInstallFunction(generator_object_prototype, "throw",
704 Builtins::kGeneratorPrototypeThrow, 1, true); 704 Builtins::kGeneratorPrototypeThrow, 1, true);
705 705
706 // Internal version of generator_prototype_next, flagged as non-native.
707 Handle<JSFunction> generator_next_internal =
708 SimpleCreateFunction(isolate(), factory()->next_string(),
709 Builtins::kGeneratorPrototypeNext, 1, true);
710 native_context()->set_generator_next_internal(*generator_next_internal);
711
712 // Create maps for generator functions and their prototypes. Store those 706 // Create maps for generator functions and their prototypes. Store those
713 // maps in the native context. The "prototype" property descriptor is 707 // maps in the native context. The "prototype" property descriptor is
714 // writable, non-enumerable, and non-configurable (as per ES6 draft 708 // writable, non-enumerable, and non-configurable (as per ES6 draft
715 // 04-14-15, section 25.2.4.3). 709 // 04-14-15, section 25.2.4.3).
716 Handle<Map> strict_function_map(strict_function_map_writable_prototype_); 710 Handle<Map> strict_function_map(strict_function_map_writable_prototype_);
717 // Generator functions do not have "caller" or "arguments" accessors. 711 // Generator functions do not have "caller" or "arguments" accessors.
718 Handle<Map> sloppy_generator_function_map = 712 Handle<Map> sloppy_generator_function_map =
719 Map::Copy(strict_function_map, "SloppyGeneratorFunction"); 713 Map::Copy(strict_function_map, "SloppyGeneratorFunction");
720 sloppy_generator_function_map->set_is_constructor(false); 714 sloppy_generator_function_map->set_is_constructor(false);
721 Map::SetPrototype(sloppy_generator_function_map, 715 Map::SetPrototype(sloppy_generator_function_map,
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4191 } 4185 }
4192 4186
4193 4187
4194 // Called when the top-level V8 mutex is destroyed. 4188 // Called when the top-level V8 mutex is destroyed.
4195 void Bootstrapper::FreeThreadResources() { 4189 void Bootstrapper::FreeThreadResources() {
4196 DCHECK(!IsActive()); 4190 DCHECK(!IsActive());
4197 } 4191 }
4198 4192
4199 } // namespace internal 4193 } // namespace internal
4200 } // namespace v8 4194 } // namespace v8
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