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