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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/api.h" | 5 #include "src/api.h" |
6 | 6 |
7 #include <string.h> // For memcpy, strlen. | 7 #include <string.h> // For memcpy, strlen. |
8 #ifdef V8_USE_ADDRESS_SANITIZER | 8 #ifdef V8_USE_ADDRESS_SANITIZER |
9 #include <sanitizer/asan_interface.h> | 9 #include <sanitizer/asan_interface.h> |
10 #endif // V8_USE_ADDRESS_SANITIZER | 10 #endif // V8_USE_ADDRESS_SANITIZER |
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3774 } | 3774 } |
3775 | 3775 |
3776 | 3776 |
3777 Local<Array> v8::Object::GetOwnPropertyNames() { | 3777 Local<Array> v8::Object::GetOwnPropertyNames() { |
3778 auto context = ContextFromHeapObject(Utils::OpenHandle(this)); | 3778 auto context = ContextFromHeapObject(Utils::OpenHandle(this)); |
3779 RETURN_TO_LOCAL_UNCHECKED(GetOwnPropertyNames(context), Array); | 3779 RETURN_TO_LOCAL_UNCHECKED(GetOwnPropertyNames(context), Array); |
3780 } | 3780 } |
3781 | 3781 |
3782 | 3782 |
3783 MaybeLocal<String> v8::Object::ObjectProtoToString(Local<Context> context) { | 3783 MaybeLocal<String> v8::Object::ObjectProtoToString(Local<Context> context) { |
3784 auto self = Utils::OpenHandle(this); | 3784 PREPARE_FOR_EXECUTION(context, "v8::Object::ObjectProtoToString", String); |
3785 auto isolate = self->GetIsolate(); | 3785 auto obj = Utils::OpenHandle(this); |
3786 auto v8_isolate = reinterpret_cast<v8::Isolate*>(isolate); | 3786 Local<String> result; |
3787 i::Handle<i::Object> name(self->class_name(), isolate); | 3787 has_pending_exception = |
3788 i::Handle<i::Object> tag; | 3788 !ToLocal<String>(i::JSObject::ObjectProtoToString(isolate, obj), &result); |
3789 | 3789 RETURN_ON_FAILED_EXECUTION(String); |
3790 // Native implementation of Object.prototype.toString (v8natives.js): | 3790 RETURN_ESCAPED(result); |
3791 // var c = %_ClassOf(this); | |
3792 // if (c === 'Arguments') c = 'Object'; | |
3793 // return "[object " + c + "]"; | |
3794 | |
3795 if (!name->IsString()) { | |
3796 return v8::String::NewFromUtf8(v8_isolate, "[object ]", | |
3797 NewStringType::kNormal); | |
3798 } | |
3799 auto class_name = i::Handle<i::String>::cast(name); | |
3800 if (i::String::Equals(class_name, isolate->factory()->Arguments_string())) { | |
3801 return v8::String::NewFromUtf8(v8_isolate, "[object Object]", | |
3802 NewStringType::kNormal); | |
3803 } | |
3804 if (internal::FLAG_harmony_tostring) { | |
3805 PREPARE_FOR_EXECUTION(context, "v8::Object::ObjectProtoToString()", String); | |
3806 auto toStringTag = isolate->factory()->to_string_tag_symbol(); | |
3807 has_pending_exception = !i::Runtime::GetObjectProperty( | |
3808 isolate, self, toStringTag).ToHandle(&tag); | |
3809 RETURN_ON_FAILED_EXECUTION(String); | |
3810 if (tag->IsString()) { | |
3811 class_name = Utils::OpenHandle(*handle_scope.Escape( | |
3812 Utils::ToLocal(i::Handle<i::String>::cast(tag)))); | |
3813 } | |
3814 } | |
3815 const char* prefix = "[object "; | |
3816 Local<String> str = Utils::ToLocal(class_name); | |
3817 const char* postfix = "]"; | |
3818 | |
3819 int prefix_len = i::StrLength(prefix); | |
3820 int str_len = str->Utf8Length(); | |
3821 int postfix_len = i::StrLength(postfix); | |
3822 | |
3823 int buf_len = prefix_len + str_len + postfix_len; | |
3824 i::ScopedVector<char> buf(buf_len); | |
3825 | |
3826 // Write prefix. | |
3827 char* ptr = buf.start(); | |
3828 i::MemCopy(ptr, prefix, prefix_len * v8::internal::kCharSize); | |
3829 ptr += prefix_len; | |
3830 | |
3831 // Write real content. | |
3832 str->WriteUtf8(ptr, str_len); | |
3833 ptr += str_len; | |
3834 | |
3835 // Write postfix. | |
3836 i::MemCopy(ptr, postfix, postfix_len * v8::internal::kCharSize); | |
3837 | |
3838 // Copy the buffer into a heap-allocated string and return it. | |
3839 return v8::String::NewFromUtf8(v8_isolate, buf.start(), | |
3840 NewStringType::kNormal, buf_len); | |
3841 } | 3791 } |
3842 | 3792 |
3843 | 3793 |
3844 Local<String> v8::Object::ObjectProtoToString() { | 3794 Local<String> v8::Object::ObjectProtoToString() { |
3845 auto context = ContextFromHeapObject(Utils::OpenHandle(this)); | 3795 auto context = ContextFromHeapObject(Utils::OpenHandle(this)); |
3846 RETURN_TO_LOCAL_UNCHECKED(ObjectProtoToString(context), String); | 3796 RETURN_TO_LOCAL_UNCHECKED(ObjectProtoToString(context), String); |
3847 } | 3797 } |
3848 | 3798 |
3849 | 3799 |
3850 Local<String> v8::Object::GetConstructorName() { | 3800 Local<String> v8::Object::GetConstructorName() { |
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8533 Address callback_address = | 8483 Address callback_address = |
8534 reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback)); | 8484 reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback)); |
8535 VMState<EXTERNAL> state(isolate); | 8485 VMState<EXTERNAL> state(isolate); |
8536 ExternalCallbackScope call_scope(isolate, callback_address); | 8486 ExternalCallbackScope call_scope(isolate, callback_address); |
8537 callback(info); | 8487 callback(info); |
8538 } | 8488 } |
8539 | 8489 |
8540 | 8490 |
8541 } // namespace internal | 8491 } // namespace internal |
8542 } // namespace v8 | 8492 } // namespace v8 |
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