8bd0bd522e
R=rossberg@chromium.org BUG= Review URL: https://codereview.chromium.org/904863002 Cr-Commit-Position: refs/heads/master@{#26621}
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/hydrogen-types.h"
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#include "src/ostreams.h"
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#include "src/types-inl.h"
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namespace v8 {
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namespace internal {
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// static
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template <class T>
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HType HType::FromType(typename T::TypeHandle type) {
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if (T::Any()->Is(type)) return HType::Any();
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if (!type->IsInhabited()) return HType::None();
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if (type->Is(T::SignedSmall())) return HType::Smi();
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if (type->Is(T::Number())) return HType::TaggedNumber();
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if (type->Is(T::Null())) return HType::Null();
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if (type->Is(T::String())) return HType::String();
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if (type->Is(T::Boolean())) return HType::Boolean();
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if (type->Is(T::Undefined())) return HType::Undefined();
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if (type->Is(T::Array())) return HType::JSArray();
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if (type->Is(T::Object())) return HType::JSObject();
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if (type->Is(T::Receiver())) return HType::JSReceiver();
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return HType::Tagged();
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}
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// static
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template
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HType HType::FromType<Type>(Type* type);
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// static
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template
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HType HType::FromType<HeapType>(Handle<HeapType> type);
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// static
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HType HType::FromValue(Handle<Object> value) {
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if (value->IsSmi()) return HType::Smi();
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if (value->IsNull()) return HType::Null();
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if (value->IsHeapNumber()) {
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double n = Handle<v8::internal::HeapNumber>::cast(value)->value();
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return IsSmiDouble(n) ? HType::Smi() : HType::HeapNumber();
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}
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if (value->IsString()) return HType::String();
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if (value->IsBoolean()) return HType::Boolean();
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if (value->IsUndefined()) return HType::Undefined();
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if (value->IsJSArray()) return HType::JSArray();
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if (value->IsJSObject()) return HType::JSObject();
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DCHECK(value->IsHeapObject());
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return HType::HeapObject();
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}
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std::ostream& operator<<(std::ostream& os, const HType& t) {
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// Note: The c1visualizer syntax for locals allows only a sequence of the
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// following characters: A-Za-z0-9_-|:
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switch (t.kind_) {
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#define DEFINE_CASE(Name, mask) \
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case HType::k##Name: \
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return os << #Name;
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HTYPE_LIST(DEFINE_CASE)
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#undef DEFINE_CASE
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}
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UNREACHABLE();
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return os;
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}
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} } // namespace v8::internal
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