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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 #ifndef V8_PROPERTY_DETAILS_INL_H_ | 5 #ifndef V8_PROPERTY_DETAILS_INL_H_ |
6 #define V8_PROPERTY_DETAILS_INL_H_ | 6 #define V8_PROPERTY_DETAILS_INL_H_ |
7 | 7 |
8 #include "src/conversions.h" | 8 #include "src/conversions.h" |
9 #include "src/objects.h" | 9 #include "src/objects.h" |
10 #include "src/property-details.h" | 10 #include "src/property-details.h" |
11 #include "src/types.h" | 11 #include "src/types.h" |
12 | 12 |
13 namespace v8 { | 13 namespace v8 { |
14 namespace internal { | 14 namespace internal { |
15 | 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) { | 16 Representation Representation::FromType(Type* type) { |
29 DisallowHeapAllocation no_allocation; | 17 DisallowHeapAllocation no_allocation; |
30 if (type->Is(Type::None())) return Representation::None(); | 18 if (type->Is(Type::None())) return Representation::None(); |
31 if (type->Is(Type::SignedSmall())) return Representation::Smi(); | 19 if (type->Is(Type::SignedSmall())) return Representation::Smi(); |
32 if (type->Is(Type::Signed32())) return Representation::Integer32(); | 20 if (type->Is(Type::Signed32())) return Representation::Integer32(); |
33 if (type->Is(Type::Number())) return Representation::Double(); | 21 if (type->Is(Type::Number())) return Representation::Double(); |
34 return Representation::Tagged(); | 22 return Representation::Tagged(); |
35 } | 23 } |
36 | 24 |
37 } } // namespace v8::internal | 25 } } // namespace v8::internal |
38 | 26 |
39 #endif // V8_PROPERTY_DETAILS_INL_H_ | 27 #endif // V8_PROPERTY_DETAILS_INL_H_ |
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