Upstream version 7.36.149.0

[platform/framework/web/crosswalk.git] / src / v8 / src / property-details.h

diff --git a/src/v8/src/property-details.h b/src/v8/src/property-details.h
index e01d9ec..94f7467 100644 (file)
--- a/src/v8/src/property-details.h
+++ b/src/v8/src/property-details.h
@@ -1,29 +1,6 @@
 // Copyright 2012 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef V8_PROPERTY_DETAILS_H_
 #define V8_PROPERTY_DETAILS_H_
@@ -77,9 +54,8 @@ enum PropertyType {
   // Only in lookup results, not in descriptors.
   HANDLER                   = 4,
   INTERCEPTOR               = 5,
-  TRANSITION                = 6,
   // Only used as a marker in LookupResult.
-  NONEXISTENT               = 7
+  NONEXISTENT               = 6
 };
 
 
@@ -95,6 +71,7 @@ class Representation {
     kInteger32,
     kDouble,
     kFloat32x4,
+    kFloat64x2,
     kInt32x4,
     kHeapObject,
     kTagged,
@@ -114,6 +91,7 @@ class Representation {
   static Representation Integer32() { return Representation(kInteger32); }
   static Representation Double() { return Representation(kDouble); }
   static Representation Float32x4() { return Representation(kFloat32x4); }
+  static Representation Float64x2() { return Representation(kFloat64x2); }
   static Representation Int32x4() { return Representation(kInt32x4); }
   static Representation HeapObject() { return Representation(kHeapObject); }
   static Representation External() { return Representation(kExternal); }
@@ -153,6 +131,8 @@ class Representation {
     return other.is_more_general_than(*this) || other.Equals(*this);
   }
 
+  bool CanContainDouble(double value);
+
   Representation generalize(Representation other) {
     if (other.fits_into(*this)) return *this;
     if (other.is_more_general_than(*this)) return other;
@@ -186,8 +166,11 @@ class Representation {
   bool IsSmiOrInteger32() const { return IsSmi() || IsInteger32(); }
   bool IsDouble() const { return kind_ == kDouble; }
   bool IsFloat32x4() const { return kind_ == kFloat32x4; }
+  bool IsFloat64x2() const { return kind_ == kFloat64x2; }
   bool IsInt32x4() const { return kind_ == kInt32x4; }
-  bool IsSIMD128() const { return IsFloat32x4() || IsInt32x4(); }
+  bool IsSIMD128() const {
+    return IsFloat32x4() || IsFloat64x2() || IsInt32x4();
+  }
   bool IsHeapObject() const { return kind_ == kHeapObject; }
   bool IsExternal() const { return kind_ == kExternal; }
   bool IsSpecialization() const {
@@ -241,11 +224,11 @@ class PropertyDetails BASE_EMBEDDED {
         | FieldIndexField::encode(field_index);
   }
 
-  int pointer() { return DescriptorPointer::decode(value_); }
+  int pointer() const { return DescriptorPointer::decode(value_); }
 
   PropertyDetails set_pointer(int i) { return PropertyDetails(value_, i); }
 
-  PropertyDetails CopyWithRepresentation(Representation representation) {
+  PropertyDetails CopyWithRepresentation(Representation representation) const {
     return PropertyDetails(value_, representation);
   }
   PropertyDetails CopyAddAttributes(PropertyAttributes new_attributes) {
@@ -256,7 +239,7 @@ class PropertyDetails BASE_EMBEDDED {
 
   // Conversion for storing details as Object*.
   explicit inline PropertyDetails(Smi* smi);
-  inline Smi* AsSmi();
+  inline Smi* AsSmi() const;
 
   static uint8_t EncodeRepresentation(Representation representation) {
     return representation.kind();
@@ -266,26 +249,26 @@ class PropertyDetails BASE_EMBEDDED {
     return Representation::FromKind(static_cast<Representation::Kind>(bits));
   }
 
-  PropertyType type() { return TypeField::decode(value_); }
+  PropertyType type() const { return TypeField::decode(value_); }
 
   PropertyAttributes attributes() const {
     return AttributesField::decode(value_);
   }
 
-  int dictionary_index() {
+  int dictionary_index() const {
     return DictionaryStorageField::decode(value_);
   }
 
-  Representation representation() {
+  Representation representation() const {
     ASSERT(type() != NORMAL);
     return DecodeRepresentation(RepresentationField::decode(value_));
   }
 
-  int  field_index() {
+  int field_index() const {
     return FieldIndexField::decode(value_);
   }
 
-  inline PropertyDetails AsDeleted();
+  inline PropertyDetails AsDeleted() const;
 
   static bool IsValidIndex(int index) {
     return DictionaryStorageField::is_valid(index);