1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/inspector/v8-internal-value-type.h" 6 7 #include "src/inspector/string-util.h" 8 9 namespace v8_inspector { 10 11 namespace { 12 13 v8::Local<v8::Private> internalSubtypePrivate(v8::Isolate* isolate) { 14 return v8::Private::ForApi( 15 isolate, 16 toV8StringInternalized(isolate, "V8InternalType#internalSubtype")); 17 } 18 19 v8::Local<v8::String> subtypeForInternalType(v8::Isolate* isolate, 20 V8InternalValueType type) { 21 switch (type) { 22 case V8InternalValueType::kEntry: 23 return toV8StringInternalized(isolate, "internal#entry"); 24 case V8InternalValueType::kLocation: 25 return toV8StringInternalized(isolate, "internal#location"); 26 case V8InternalValueType::kScope: 27 return toV8StringInternalized(isolate, "internal#scope"); 28 case V8InternalValueType::kScopeList: 29 return toV8StringInternalized(isolate, "internal#scopeList"); 30 } 31 UNREACHABLE(); 32 return v8::Local<v8::String>(); 33 } 34 35 } // namespace 36 37 bool markAsInternal(v8::Local<v8::Context> context, 38 v8::Local<v8::Object> object, V8InternalValueType type) { 39 v8::Isolate* isolate = context->GetIsolate(); 40 v8::Local<v8::Private> privateValue = internalSubtypePrivate(isolate); 41 v8::Local<v8::String> subtype = subtypeForInternalType(isolate, type); 42 return object->SetPrivate(context, privateValue, subtype).FromMaybe(false); 43 } 44 45 bool markArrayEntriesAsInternal(v8::Local<v8::Context> context, 46 v8::Local<v8::Array> array, 47 V8InternalValueType type) { 48 v8::Isolate* isolate = context->GetIsolate(); 49 v8::Local<v8::Private> privateValue = internalSubtypePrivate(isolate); 50 v8::Local<v8::String> subtype = subtypeForInternalType(isolate, type); 51 for (uint32_t i = 0; i < array->Length(); ++i) { 52 v8::Local<v8::Value> entry; 53 if (!array->Get(context, i).ToLocal(&entry) || !entry->IsObject()) 54 return false; 55 if (!entry.As<v8::Object>() 56 ->SetPrivate(context, privateValue, subtype) 57 .FromMaybe(false)) 58 return false; 59 } 60 return true; 61 } 62 63 v8::Local<v8::Value> v8InternalValueTypeFrom(v8::Local<v8::Context> context, 64 v8::Local<v8::Object> object) { 65 v8::Isolate* isolate = context->GetIsolate(); 66 v8::Local<v8::Private> privateValue = internalSubtypePrivate(isolate); 67 if (!object->HasPrivate(context, privateValue).FromMaybe(false)) 68 return v8::Null(isolate); 69 v8::Local<v8::Value> subtypeValue; 70 if (!object->GetPrivate(context, privateValue).ToLocal(&subtypeValue) || 71 !subtypeValue->IsString()) 72 return v8::Null(isolate); 73 return subtypeValue; 74 } 75 76 } // namespace v8_inspector 77
