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 3 // found in the LICENSE file. 4 5 #ifndef V8_PROPERTY_DETAILS_INL_H_ 6 #define V8_PROPERTY_DETAILS_INL_H_ 7 8 #include "src/conversions.h" 9 #include "src/objects.h" 10 #include "src/property-details.h" 11 #include "src/types.h" 12 13 namespace v8 { 14 namespace internal { 15 16 inline bool Representation::CanContainDouble(double value) { 17 if (IsDouble() || is_more_general_than(Representation::Double())) { 18 return true; 19 } 20 if (IsInt32Double(value)) { 21 if (IsInteger32()) return true; 22 if (IsSmi()) return Smi::IsValid(static_cast<int32_t>(value)); 23 } 24 return false; 25 } 26 27 28 Representation Representation::FromType(Type* type) { 29 DisallowHeapAllocation no_allocation; 30 if (type->Is(Type::None())) return Representation::None(); 31 if (type->Is(Type::SignedSmall())) return Representation::Smi(); 32 if (type->Is(Type::Signed32())) return Representation::Integer32(); 33 if (type->Is(Type::Number())) return Representation::Double(); 34 return Representation::Tagged(); 35 } 36 37 } } // namespace v8::internal 38 39 #endif // V8_PROPERTY_DETAILS_INL_H_ 40
