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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 "bootstrapper.h" | 5 #include "bootstrapper.h" |
6 | 6 |
7 #include "accessors.h" | 7 #include "accessors.h" |
8 #include "isolate-inl.h" | 8 #include "isolate-inl.h" |
9 #include "natives.h" | 9 #include "natives.h" |
10 #include "snapshot.h" | 10 #include "snapshot.h" |
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351 InstanceType type, | 351 InstanceType type, |
352 int instance_size, | 352 int instance_size, |
353 MaybeHandle<JSObject> maybe_prototype, | 353 MaybeHandle<JSObject> maybe_prototype, |
354 Builtins::Name call) { | 354 Builtins::Name call) { |
355 Isolate* isolate = target->GetIsolate(); | 355 Isolate* isolate = target->GetIsolate(); |
356 Factory* factory = isolate->factory(); | 356 Factory* factory = isolate->factory(); |
357 Handle<String> internalized_name = factory->InternalizeUtf8String(name); | 357 Handle<String> internalized_name = factory->InternalizeUtf8String(name); |
358 Handle<Code> call_code = Handle<Code>(isolate->builtins()->builtin(call)); | 358 Handle<Code> call_code = Handle<Code>(isolate->builtins()->builtin(call)); |
359 Handle<JSObject> prototype; | 359 Handle<JSObject> prototype; |
360 Handle<JSFunction> function = maybe_prototype.ToHandle(&prototype) | 360 Handle<JSFunction> function = maybe_prototype.ToHandle(&prototype) |
361 ? factory->NewFunction(prototype, internalized_name, type, | 361 ? factory->NewFunction(internalized_name, call_code, prototype, |
362 instance_size, call_code) | 362 type, instance_size) |
363 : factory->NewFunction(internalized_name, call_code); | 363 : factory->NewFunctionWithoutPrototype(internalized_name, call_code); |
364 PropertyAttributes attributes; | 364 PropertyAttributes attributes; |
365 if (target->IsJSBuiltinsObject()) { | 365 if (target->IsJSBuiltinsObject()) { |
366 attributes = | 366 attributes = |
367 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); | 367 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
368 } else { | 368 } else { |
369 attributes = DONT_ENUM; | 369 attributes = DONT_ENUM; |
370 } | 370 } |
371 JSObject::SetLocalPropertyIgnoreAttributes( | 371 JSObject::SetLocalPropertyIgnoreAttributes( |
372 target, internalized_name, function, attributes).Check(); | 372 target, internalized_name, function, attributes).Check(); |
373 if (target->IsJSGlobalObject()) { | 373 if (target->IsJSGlobalObject()) { |
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481 // assertions during startup. | 481 // assertions during startup. |
482 native_context()->set_initial_array_prototype(*prototype); | 482 native_context()->set_initial_array_prototype(*prototype); |
483 Accessors::FunctionSetPrototype(object_fun, prototype); | 483 Accessors::FunctionSetPrototype(object_fun, prototype); |
484 } | 484 } |
485 | 485 |
486 // Allocate the empty function as the prototype for function ECMAScript | 486 // Allocate the empty function as the prototype for function ECMAScript |
487 // 262 15.3.4. | 487 // 262 15.3.4. |
488 Handle<String> empty_string = | 488 Handle<String> empty_string = |
489 factory->InternalizeOneByteString(STATIC_ASCII_VECTOR("Empty")); | 489 factory->InternalizeOneByteString(STATIC_ASCII_VECTOR("Empty")); |
490 Handle<Code> code(isolate->builtins()->builtin(Builtins::kEmptyFunction)); | 490 Handle<Code> code(isolate->builtins()->builtin(Builtins::kEmptyFunction)); |
491 Handle<JSFunction> empty_function = factory->NewFunction(empty_string, code); | 491 Handle<JSFunction> empty_function = factory->NewFunctionWithoutPrototype( |
| 492 empty_string, code); |
492 | 493 |
493 // --- E m p t y --- | 494 // --- E m p t y --- |
494 Handle<String> source = factory->NewStringFromStaticAscii("() {}"); | 495 Handle<String> source = factory->NewStringFromStaticAscii("() {}"); |
495 Handle<Script> script = factory->NewScript(source); | 496 Handle<Script> script = factory->NewScript(source); |
496 script->set_type(Smi::FromInt(Script::TYPE_NATIVE)); | 497 script->set_type(Smi::FromInt(Script::TYPE_NATIVE)); |
497 empty_function->shared()->set_script(*script); | 498 empty_function->shared()->set_script(*script); |
498 empty_function->shared()->set_start_position(0); | 499 empty_function->shared()->set_start_position(0); |
499 empty_function->shared()->set_end_position(source->length()); | 500 empty_function->shared()->set_end_position(source->length()); |
500 empty_function->shared()->DontAdaptArguments(); | 501 empty_function->shared()->DontAdaptArguments(); |
501 | 502 |
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562 } | 563 } |
563 | 564 |
564 | 565 |
565 // ECMAScript 5th Edition, 13.2.3 | 566 // ECMAScript 5th Edition, 13.2.3 |
566 Handle<JSFunction> Genesis::GetThrowTypeErrorFunction() { | 567 Handle<JSFunction> Genesis::GetThrowTypeErrorFunction() { |
567 if (throw_type_error_function.is_null()) { | 568 if (throw_type_error_function.is_null()) { |
568 Handle<String> name = factory()->InternalizeOneByteString( | 569 Handle<String> name = factory()->InternalizeOneByteString( |
569 STATIC_ASCII_VECTOR("ThrowTypeError")); | 570 STATIC_ASCII_VECTOR("ThrowTypeError")); |
570 Handle<Code> code(isolate()->builtins()->builtin( | 571 Handle<Code> code(isolate()->builtins()->builtin( |
571 Builtins::kStrictModePoisonPill)); | 572 Builtins::kStrictModePoisonPill)); |
572 throw_type_error_function = factory()->NewFunction(name, code); | 573 throw_type_error_function = factory()->NewFunctionWithoutPrototype( |
| 574 name, code); |
573 throw_type_error_function->set_map(native_context()->sloppy_function_map()); | 575 throw_type_error_function->set_map(native_context()->sloppy_function_map()); |
574 throw_type_error_function->shared()->DontAdaptArguments(); | 576 throw_type_error_function->shared()->DontAdaptArguments(); |
575 | 577 |
576 JSObject::PreventExtensions(throw_type_error_function).Assert(); | 578 JSObject::PreventExtensions(throw_type_error_function).Assert(); |
577 } | 579 } |
578 return throw_type_error_function; | 580 return throw_type_error_function; |
579 } | 581 } |
580 | 582 |
581 | 583 |
582 Handle<Map> Genesis::CreateStrictFunctionMap( | 584 Handle<Map> Genesis::CreateStrictFunctionMap( |
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701 js_global_template = | 703 js_global_template = |
702 Handle<ObjectTemplateInfo>::cast(proto_template); | 704 Handle<ObjectTemplateInfo>::cast(proto_template); |
703 } | 705 } |
704 } | 706 } |
705 | 707 |
706 if (js_global_template.is_null()) { | 708 if (js_global_template.is_null()) { |
707 Handle<String> name = Handle<String>(heap()->empty_string()); | 709 Handle<String> name = Handle<String>(heap()->empty_string()); |
708 Handle<Code> code = Handle<Code>(isolate()->builtins()->builtin( | 710 Handle<Code> code = Handle<Code>(isolate()->builtins()->builtin( |
709 Builtins::kIllegal)); | 711 Builtins::kIllegal)); |
710 js_global_function = factory()->NewFunction( | 712 js_global_function = factory()->NewFunction( |
711 name, JS_GLOBAL_OBJECT_TYPE, JSGlobalObject::kSize, code); | 713 name, code, JS_GLOBAL_OBJECT_TYPE, JSGlobalObject::kSize); |
712 // Change the constructor property of the prototype of the | 714 // Change the constructor property of the prototype of the |
713 // hidden global function to refer to the Object function. | 715 // hidden global function to refer to the Object function. |
714 Handle<JSObject> prototype = | 716 Handle<JSObject> prototype = |
715 Handle<JSObject>( | 717 Handle<JSObject>( |
716 JSObject::cast(js_global_function->instance_prototype())); | 718 JSObject::cast(js_global_function->instance_prototype())); |
717 JSObject::SetLocalPropertyIgnoreAttributes( | 719 JSObject::SetLocalPropertyIgnoreAttributes( |
718 prototype, factory()->constructor_string(), | 720 prototype, factory()->constructor_string(), |
719 isolate()->object_function(), NONE).Check(); | 721 isolate()->object_function(), NONE).Check(); |
720 } else { | 722 } else { |
721 Handle<FunctionTemplateInfo> js_global_constructor( | 723 Handle<FunctionTemplateInfo> js_global_constructor( |
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734 *inner_global_out = inner_global; | 736 *inner_global_out = inner_global; |
735 } | 737 } |
736 | 738 |
737 // Step 2: create or re-initialize the global proxy object. | 739 // Step 2: create or re-initialize the global proxy object. |
738 Handle<JSFunction> global_proxy_function; | 740 Handle<JSFunction> global_proxy_function; |
739 if (global_template.IsEmpty()) { | 741 if (global_template.IsEmpty()) { |
740 Handle<String> name = Handle<String>(heap()->empty_string()); | 742 Handle<String> name = Handle<String>(heap()->empty_string()); |
741 Handle<Code> code = Handle<Code>(isolate()->builtins()->builtin( | 743 Handle<Code> code = Handle<Code>(isolate()->builtins()->builtin( |
742 Builtins::kIllegal)); | 744 Builtins::kIllegal)); |
743 global_proxy_function = factory()->NewFunction( | 745 global_proxy_function = factory()->NewFunction( |
744 name, JS_GLOBAL_PROXY_TYPE, JSGlobalProxy::kSize, code); | 746 name, code, JS_GLOBAL_PROXY_TYPE, JSGlobalProxy::kSize); |
745 } else { | 747 } else { |
746 Handle<ObjectTemplateInfo> data = | 748 Handle<ObjectTemplateInfo> data = |
747 v8::Utils::OpenHandle(*global_template); | 749 v8::Utils::OpenHandle(*global_template); |
748 Handle<FunctionTemplateInfo> global_constructor( | 750 Handle<FunctionTemplateInfo> global_constructor( |
749 FunctionTemplateInfo::cast(data->constructor())); | 751 FunctionTemplateInfo::cast(data->constructor())); |
750 global_proxy_function = | 752 global_proxy_function = |
751 factory()->CreateApiFunction(global_constructor, | 753 factory()->CreateApiFunction(global_constructor, |
752 factory()->the_hole_value(), | 754 factory()->the_hole_value(), |
753 factory()->OuterGlobalObject); | 755 factory()->OuterGlobalObject); |
754 } | 756 } |
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1070 } | 1072 } |
1071 | 1073 |
1072 { // --- arguments_boilerplate_ | 1074 { // --- arguments_boilerplate_ |
1073 // Make sure we can recognize argument objects at runtime. | 1075 // Make sure we can recognize argument objects at runtime. |
1074 // This is done by introducing an anonymous function with | 1076 // This is done by introducing an anonymous function with |
1075 // class_name equals 'Arguments'. | 1077 // class_name equals 'Arguments'. |
1076 Handle<String> arguments_string = factory->InternalizeOneByteString( | 1078 Handle<String> arguments_string = factory->InternalizeOneByteString( |
1077 STATIC_ASCII_VECTOR("Arguments")); | 1079 STATIC_ASCII_VECTOR("Arguments")); |
1078 Handle<Code> code(isolate->builtins()->builtin(Builtins::kIllegal)); | 1080 Handle<Code> code(isolate->builtins()->builtin(Builtins::kIllegal)); |
1079 | 1081 |
1080 Handle<JSFunction> function = factory->NewFunction(arguments_string, code); | 1082 Handle<JSFunction> function = factory->NewFunctionWithoutPrototype( |
| 1083 arguments_string, code); |
1081 ASSERT(!function->has_initial_map()); | 1084 ASSERT(!function->has_initial_map()); |
1082 function->shared()->set_instance_class_name(*arguments_string); | 1085 function->shared()->set_instance_class_name(*arguments_string); |
1083 function->shared()->set_expected_nof_properties(2); | 1086 function->shared()->set_expected_nof_properties(2); |
1084 function->set_prototype_or_initial_map( | 1087 function->set_prototype_or_initial_map( |
1085 native_context()->object_function()->prototype()); | 1088 native_context()->object_function()->prototype()); |
1086 Handle<JSObject> result = factory->NewJSObject(function); | 1089 Handle<JSObject> result = factory->NewJSObject(function); |
1087 | 1090 |
1088 native_context()->set_sloppy_arguments_boilerplate(*result); | 1091 native_context()->set_sloppy_arguments_boilerplate(*result); |
1089 // Note: length must be added as the first property and | 1092 // Note: length must be added as the first property and |
1090 // callee must be added as the second property. | 1093 // callee must be added as the second property. |
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1210 ASSERT(result->HasFastProperties()); | 1213 ASSERT(result->HasFastProperties()); |
1211 ASSERT(result->HasFastObjectElements()); | 1214 ASSERT(result->HasFastObjectElements()); |
1212 #endif | 1215 #endif |
1213 } | 1216 } |
1214 | 1217 |
1215 { // --- context extension | 1218 { // --- context extension |
1216 // Create a function for the context extension objects. | 1219 // Create a function for the context extension objects. |
1217 Handle<Code> code = Handle<Code>( | 1220 Handle<Code> code = Handle<Code>( |
1218 isolate->builtins()->builtin(Builtins::kIllegal)); | 1221 isolate->builtins()->builtin(Builtins::kIllegal)); |
1219 Handle<JSFunction> context_extension_fun = factory->NewFunction( | 1222 Handle<JSFunction> context_extension_fun = factory->NewFunction( |
1220 factory->empty_string(), JS_CONTEXT_EXTENSION_OBJECT_TYPE, | 1223 factory->empty_string(), code, JS_CONTEXT_EXTENSION_OBJECT_TYPE, |
1221 JSObject::kHeaderSize, code); | 1224 JSObject::kHeaderSize); |
1222 | 1225 |
1223 Handle<String> name = factory->InternalizeOneByteString( | 1226 Handle<String> name = factory->InternalizeOneByteString( |
1224 STATIC_ASCII_VECTOR("context_extension")); | 1227 STATIC_ASCII_VECTOR("context_extension")); |
1225 context_extension_fun->shared()->set_instance_class_name(*name); | 1228 context_extension_fun->shared()->set_instance_class_name(*name); |
1226 native_context()->set_context_extension_function(*context_extension_fun); | 1229 native_context()->set_context_extension_function(*context_extension_fun); |
1227 } | 1230 } |
1228 | 1231 |
1229 | 1232 |
1230 { | 1233 { |
1231 // Set up the call-as-function delegate. | 1234 // Set up the call-as-function delegate. |
1232 Handle<Code> code = | 1235 Handle<Code> code = |
1233 Handle<Code>(isolate->builtins()->builtin( | 1236 Handle<Code>(isolate->builtins()->builtin( |
1234 Builtins::kHandleApiCallAsFunction)); | 1237 Builtins::kHandleApiCallAsFunction)); |
1235 Handle<JSFunction> delegate = factory->NewFunction( | 1238 Handle<JSFunction> delegate = factory->NewFunction( |
1236 factory->empty_string(), JS_OBJECT_TYPE, JSObject::kHeaderSize, code); | 1239 factory->empty_string(), code, JS_OBJECT_TYPE, JSObject::kHeaderSize); |
1237 native_context()->set_call_as_function_delegate(*delegate); | 1240 native_context()->set_call_as_function_delegate(*delegate); |
1238 delegate->shared()->DontAdaptArguments(); | 1241 delegate->shared()->DontAdaptArguments(); |
1239 } | 1242 } |
1240 | 1243 |
1241 { | 1244 { |
1242 // Set up the call-as-constructor delegate. | 1245 // Set up the call-as-constructor delegate. |
1243 Handle<Code> code = | 1246 Handle<Code> code = |
1244 Handle<Code>(isolate->builtins()->builtin( | 1247 Handle<Code>(isolate->builtins()->builtin( |
1245 Builtins::kHandleApiCallAsConstructor)); | 1248 Builtins::kHandleApiCallAsConstructor)); |
1246 Handle<JSFunction> delegate = factory->NewFunction( | 1249 Handle<JSFunction> delegate = factory->NewFunction( |
1247 factory->empty_string(), JS_OBJECT_TYPE, JSObject::kHeaderSize, code); | 1250 factory->empty_string(), code, JS_OBJECT_TYPE, JSObject::kHeaderSize); |
1248 native_context()->set_call_as_constructor_delegate(*delegate); | 1251 native_context()->set_call_as_constructor_delegate(*delegate); |
1249 delegate->shared()->DontAdaptArguments(); | 1252 delegate->shared()->DontAdaptArguments(); |
1250 } | 1253 } |
1251 | 1254 |
1252 // Initialize the embedder data slot. | 1255 // Initialize the embedder data slot. |
1253 Handle<FixedArray> embedder_data = factory->NewFixedArray(3); | 1256 Handle<FixedArray> embedder_data = factory->NewFixedArray(3); |
1254 native_context()->set_embedder_data(*embedder_data); | 1257 native_context()->set_embedder_data(*embedder_data); |
1255 } | 1258 } |
1256 | 1259 |
1257 | 1260 |
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1606 | 1609 |
1607 bool Genesis::InstallNatives() { | 1610 bool Genesis::InstallNatives() { |
1608 HandleScope scope(isolate()); | 1611 HandleScope scope(isolate()); |
1609 | 1612 |
1610 // Create a function for the builtins object. Allocate space for the | 1613 // Create a function for the builtins object. Allocate space for the |
1611 // JavaScript builtins, a reference to the builtins object | 1614 // JavaScript builtins, a reference to the builtins object |
1612 // (itself) and a reference to the native_context directly in the object. | 1615 // (itself) and a reference to the native_context directly in the object. |
1613 Handle<Code> code = Handle<Code>( | 1616 Handle<Code> code = Handle<Code>( |
1614 isolate()->builtins()->builtin(Builtins::kIllegal)); | 1617 isolate()->builtins()->builtin(Builtins::kIllegal)); |
1615 Handle<JSFunction> builtins_fun = factory()->NewFunction( | 1618 Handle<JSFunction> builtins_fun = factory()->NewFunction( |
1616 factory()->empty_string(), JS_BUILTINS_OBJECT_TYPE, | 1619 factory()->empty_string(), code, JS_BUILTINS_OBJECT_TYPE, |
1617 JSBuiltinsObject::kSize, code); | 1620 JSBuiltinsObject::kSize); |
1618 | 1621 |
1619 Handle<String> name = | 1622 Handle<String> name = |
1620 factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("builtins")); | 1623 factory()->InternalizeOneByteString(STATIC_ASCII_VECTOR("builtins")); |
1621 builtins_fun->shared()->set_instance_class_name(*name); | 1624 builtins_fun->shared()->set_instance_class_name(*name); |
1622 builtins_fun->initial_map()->set_dictionary_map(true); | 1625 builtins_fun->initial_map()->set_dictionary_map(true); |
1623 builtins_fun->initial_map()->set_prototype(heap()->null_value()); | 1626 builtins_fun->initial_map()->set_prototype(heap()->null_value()); |
1624 | 1627 |
1625 // Allocate the builtins object. | 1628 // Allocate the builtins object. |
1626 Handle<JSBuiltinsObject> builtins = | 1629 Handle<JSBuiltinsObject> builtins = |
1627 Handle<JSBuiltinsObject>::cast(factory()->NewGlobalObject(builtins_fun)); | 1630 Handle<JSBuiltinsObject>::cast(factory()->NewGlobalObject(builtins_fun)); |
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2653 return from + sizeof(NestingCounterType); | 2656 return from + sizeof(NestingCounterType); |
2654 } | 2657 } |
2655 | 2658 |
2656 | 2659 |
2657 // Called when the top-level V8 mutex is destroyed. | 2660 // Called when the top-level V8 mutex is destroyed. |
2658 void Bootstrapper::FreeThreadResources() { | 2661 void Bootstrapper::FreeThreadResources() { |
2659 ASSERT(!IsActive()); | 2662 ASSERT(!IsActive()); |
2660 } | 2663 } |
2661 | 2664 |
2662 } } // namespace v8::internal | 2665 } } // namespace v8::internal |
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