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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 479 set_instance_descriptors(Heap::empty_descriptor_array()); | 479 set_instance_descriptors(Heap::empty_descriptor_array()); |
| 480 } | 480 } |
| 481 | 481 |
| 482 // Allocate the empty function as the prototype for function ECMAScript | 482 // Allocate the empty function as the prototype for function ECMAScript |
| 483 // 262 15.3.4. | 483 // 262 15.3.4. |
| 484 Handle<String> symbol = Factory::LookupAsciiSymbol("Empty"); | 484 Handle<String> symbol = Factory::LookupAsciiSymbol("Empty"); |
| 485 Handle<JSFunction> empty_function = | 485 Handle<JSFunction> empty_function = |
| 486 Factory::NewFunction(symbol, Factory::null_value()); | 486 Factory::NewFunction(symbol, Factory::null_value()); |
| 487 | 487 |
| 488 { // --- E m p t y --- | 488 { // --- E m p t y --- |
| 489 Handle<Code> call_code = | 489 Handle<Code> code = |
| 490 Handle<Code>(Builtins::builtin(Builtins::EmptyFunction)); | 490 Handle<Code>(Builtins::builtin(Builtins::EmptyFunction)); |
| 491 Handle<String> source = Factory::NewStringFromAscii(CStrVector("() {}")); | 491 Handle<String> source = Factory::NewStringFromAscii(CStrVector("() {}")); |
| 492 | 492 |
| 493 empty_function->set_code(*call_code); | 493 empty_function->set_code(*code); |
| 494 empty_function->shared()->set_script(*Factory::NewScript(source)); | 494 empty_function->shared()->set_script(*Factory::NewScript(source)); |
| 495 empty_function->shared()->set_start_position(0); | 495 empty_function->shared()->set_start_position(0); |
| 496 empty_function->shared()->set_end_position(source->length()); | 496 empty_function->shared()->set_end_position(source->length()); |
| 497 empty_function->shared()->DontAdaptArguments(); |
| 497 global_context()->function_map()->set_prototype(*empty_function); | 498 global_context()->function_map()->set_prototype(*empty_function); |
| 498 global_context()->function_instance_map()->set_prototype(*empty_function); | 499 global_context()->function_instance_map()->set_prototype(*empty_function); |
| 499 | 500 |
| 500 // Allocate the function map first and then patch the prototype later | 501 // Allocate the function map first and then patch the prototype later |
| 501 Handle<Map> empty_fm = Factory::CopyMap(fm); | 502 Handle<Map> empty_fm = Factory::CopyMap(fm); |
| 502 empty_fm->set_instance_descriptors(*function_map_descriptors); | 503 empty_fm->set_instance_descriptors(*function_map_descriptors); |
| 503 empty_fm->set_prototype(global_context()->object_function()->prototype()); | 504 empty_fm->set_prototype(global_context()->object_function()->prototype()); |
| 504 empty_function->set_map(*empty_fm); | 505 empty_function->set_map(*empty_fm); |
| 505 } | 506 } |
| 506 | 507 |
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| 573 | 574 |
| 574 // Install global Function object | 575 // Install global Function object |
| 575 InstallFunction(global, "Function", JS_FUNCTION_TYPE, JSFunction::kSize, | 576 InstallFunction(global, "Function", JS_FUNCTION_TYPE, JSFunction::kSize, |
| 576 empty_function, Builtins::Illegal, true); // ECMA native. | 577 empty_function, Builtins::Illegal, true); // ECMA native. |
| 577 | 578 |
| 578 { // --- A r r a y --- | 579 { // --- A r r a y --- |
| 579 Handle<JSFunction> array_function = | 580 Handle<JSFunction> array_function = |
| 580 InstallFunction(global, "Array", JS_ARRAY_TYPE, JSArray::kSize, | 581 InstallFunction(global, "Array", JS_ARRAY_TYPE, JSArray::kSize, |
| 581 Top::initial_object_prototype(), Builtins::ArrayCode, | 582 Top::initial_object_prototype(), Builtins::ArrayCode, |
| 582 true); | 583 true); |
| 584 array_function->shared()->DontAdaptArguments(); |
| 583 | 585 |
| 584 // This seems a bit hackish, but we need to make sure Array.length | 586 // This seems a bit hackish, but we need to make sure Array.length |
| 585 // is 1. | 587 // is 1. |
| 586 array_function->shared()->set_length(1); | 588 array_function->shared()->set_length(1); |
| 587 Handle<DescriptorArray> array_descriptors = | 589 Handle<DescriptorArray> array_descriptors = |
| 588 Factory::CopyAppendProxyDescriptor( | 590 Factory::CopyAppendProxyDescriptor( |
| 589 Factory::empty_descriptor_array(), | 591 Factory::empty_descriptor_array(), |
| 590 Factory::length_symbol(), | 592 Factory::length_symbol(), |
| 591 Factory::NewProxy(&Accessors::ArrayLength), | 593 Factory::NewProxy(&Accessors::ArrayLength), |
| 592 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE)); | 594 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE)); |
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| 702 global_context()->set_context_extension_function(*context_extension_fun); | 704 global_context()->set_context_extension_function(*context_extension_fun); |
| 703 } | 705 } |
| 704 | 706 |
| 705 // Setup the call-as-function delegate. | 707 // Setup the call-as-function delegate. |
| 706 Handle<Code> code = | 708 Handle<Code> code = |
| 707 Handle<Code>(Builtins::builtin(Builtins::HandleApiCallAsFunction)); | 709 Handle<Code>(Builtins::builtin(Builtins::HandleApiCallAsFunction)); |
| 708 Handle<JSFunction> delegate = | 710 Handle<JSFunction> delegate = |
| 709 Factory::NewFunction(Factory::empty_symbol(), JS_OBJECT_TYPE, | 711 Factory::NewFunction(Factory::empty_symbol(), JS_OBJECT_TYPE, |
| 710 JSObject::kHeaderSize, code, true); | 712 JSObject::kHeaderSize, code, true); |
| 711 global_context()->set_call_as_function_delegate(*delegate); | 713 global_context()->set_call_as_function_delegate(*delegate); |
| 714 delegate->shared()->DontAdaptArguments(); |
| 712 | 715 |
| 713 global_context()->set_special_function_table(Heap::empty_fixed_array()); | 716 global_context()->set_special_function_table(Heap::empty_fixed_array()); |
| 714 | 717 |
| 715 // Initialize the out of memory slot. | 718 // Initialize the out of memory slot. |
| 716 global_context()->set_out_of_memory(Heap::false_value()); | 719 global_context()->set_out_of_memory(Heap::false_value()); |
| 717 } | 720 } |
| 718 | 721 |
| 719 | 722 |
| 720 bool Genesis::CompileBuiltin(int index) { | 723 bool Genesis::CompileBuiltin(int index) { |
| 721 Vector<const char> name = Natives::GetScriptName(index); | 724 Vector<const char> name = Natives::GetScriptName(index); |
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| 1331 if (!ConfigureGlobalObject(global_template)) return; | 1334 if (!ConfigureGlobalObject(global_template)) return; |
| 1332 | 1335 |
| 1333 if (!InstallExtensions(extensions)) return; | 1336 if (!InstallExtensions(extensions)) return; |
| 1334 | 1337 |
| 1335 if (!InstallSpecialObjects()) return; | 1338 if (!InstallSpecialObjects()) return; |
| 1336 | 1339 |
| 1337 result_ = global_context_; | 1340 result_ = global_context_; |
| 1338 } | 1341 } |
| 1339 | 1342 |
| 1340 } } // namespace v8::internal | 1343 } } // namespace v8::internal |
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