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#include "src/crankshaft/hydrogen-types.h"
6
7#include "src/field-type.h"
8#include "src/handles-inl.h"
9#include "src/ostreams.h"
10
11namespace v8 {
12namespace internal {
13
14// static
15HType HType::FromType(Type* type) {
16  if (Type::Any()->Is(type)) return HType::Any();
17  if (!type->IsInhabited()) return HType::None();
18  if (type->Is(Type::SignedSmall())) return HType::Smi();
19  if (type->Is(Type::Number())) return HType::TaggedNumber();
20  if (type->Is(Type::Null())) return HType::Null();
21  if (type->Is(Type::String())) return HType::String();
22  if (type->Is(Type::Boolean())) return HType::Boolean();
23  if (type->Is(Type::Undefined())) return HType::Undefined();
24  if (type->Is(Type::Object())) return HType::JSObject();
25  if (type->Is(Type::DetectableReceiver())) return HType::JSReceiver();
26  return HType::Tagged();
27}
28
29
30// static
31HType HType::FromFieldType(Handle<FieldType> type, Zone* temp_zone) {
32  return FromType(type->Convert(temp_zone));
33}
34
35// static
36HType HType::FromValue(Handle<Object> value) {
37  Object* raw_value = *value;
38  if (raw_value->IsSmi()) return HType::Smi();
39  DCHECK(raw_value->IsHeapObject());
40  Isolate* isolate = HeapObject::cast(*value)->GetIsolate();
41  if (raw_value->IsNull(isolate)) return HType::Null();
42  if (raw_value->IsHeapNumber()) {
43    double n = Handle<v8::internal::HeapNumber>::cast(value)->value();
44    return IsSmiDouble(n) ? HType::Smi() : HType::HeapNumber();
45  }
46  if (raw_value->IsString()) return HType::String();
47  if (raw_value->IsBoolean()) return HType::Boolean();
48  if (raw_value->IsUndefined(isolate)) return HType::Undefined();
49  if (raw_value->IsJSArray()) {
50    DCHECK(!raw_value->IsUndetectable());
51    return HType::JSArray();
52  }
53  if (raw_value->IsJSObject() && !raw_value->IsUndetectable()) {
54    return HType::JSObject();
55  }
56  return HType::HeapObject();
57}
58
59
60std::ostream& operator<<(std::ostream& os, const HType& t) {
61  // Note: The c1visualizer syntax for locals allows only a sequence of the
62  // following characters: A-Za-z0-9_-|:
63  switch (t.kind_) {
64#define DEFINE_CASE(Name, mask) \
65  case HType::k##Name:          \
66    return os << #Name;
67    HTYPE_LIST(DEFINE_CASE)
68#undef DEFINE_CASE
69  }
70  UNREACHABLE();
71  return os;
72}
73
74}  // namespace internal
75}  // namespace v8
76