// Copyright 2014 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #include "src/crankshaft/hydrogen-types.h" #include "src/field-type.h" #include "src/handles-inl.h" #include "src/objects-inl.h" #include "src/ostreams.h" namespace v8 { namespace internal { // static HType HType::FromType(AstType* type) { if (AstType::Any()->Is(type)) return HType::Any(); if (!type->IsInhabited()) return HType::None(); if (type->Is(AstType::SignedSmall())) return HType::Smi(); if (type->Is(AstType::Number())) return HType::TaggedNumber(); if (type->Is(AstType::Null())) return HType::Null(); if (type->Is(AstType::String())) return HType::String(); if (type->Is(AstType::Boolean())) return HType::Boolean(); if (type->Is(AstType::Undefined())) return HType::Undefined(); if (type->Is(AstType::Object())) return HType::JSObject(); if (type->Is(AstType::DetectableReceiver())) return HType::JSReceiver(); return HType::Tagged(); } // static HType HType::FromFieldType(Handle<FieldType> type, Zone* temp_zone) { return FromType(type->Convert(temp_zone)); } // static HType HType::FromValue(Handle<Object> value) { Object* raw_value = *value; if (raw_value->IsSmi()) return HType::Smi(); DCHECK(raw_value->IsHeapObject()); Isolate* isolate = HeapObject::cast(*value)->GetIsolate(); if (raw_value->IsNull(isolate)) return HType::Null(); if (raw_value->IsHeapNumber()) { double n = Handle<v8::internal::HeapNumber>::cast(value)->value(); return IsSmiDouble(n) ? HType::Smi() : HType::HeapNumber(); } if (raw_value->IsString()) return HType::String(); if (raw_value->IsBoolean()) return HType::Boolean(); if (raw_value->IsUndefined(isolate)) return HType::Undefined(); if (raw_value->IsJSArray()) { DCHECK(!raw_value->IsUndetectable()); return HType::JSArray(); } if (raw_value->IsJSObject() && !raw_value->IsUndetectable()) { return HType::JSObject(); } return HType::HeapObject(); } std::ostream& operator<<(std::ostream& os, const HType& t) { // Note: The c1visualizer syntax for locals allows only a sequence of the // following characters: A-Za-z0-9_-|: switch (t.kind_) { #define DEFINE_CASE(Name, mask) \ case HType::k##Name: \ return os << #Name; HTYPE_LIST(DEFINE_CASE) #undef DEFINE_CASE } UNREACHABLE(); return os; } } // namespace internal } // namespace v8