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-rw-r--r--chromium/v8/src/property-details.h75
1 files changed, 27 insertions, 48 deletions
diff --git a/chromium/v8/src/property-details.h b/chromium/v8/src/property-details.h
index 200657f11f0..cfe257efcc4 100644
--- a/chromium/v8/src/property-details.h
+++ b/chromium/v8/src/property-details.h
@@ -1,36 +1,13 @@
// 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_
-#include "../include/v8.h"
-#include "allocation.h"
-#include "utils.h"
+#include "include/v8.h"
+#include "src/allocation.h"
+#include "src/utils.h"
// Ecma-262 3rd 8.6.1
enum PropertyAttributes {
@@ -42,9 +19,12 @@ enum PropertyAttributes {
SEALED = DONT_DELETE,
FROZEN = SEALED | READ_ONLY,
- SYMBOLIC = 8, // Used to filter symbol names
- DONT_SHOW = DONT_ENUM | SYMBOLIC,
- ABSENT = 16 // Used in runtime to indicate a property is absent.
+ STRING = 8, // Used to filter symbols and string names
+ SYMBOLIC = 16,
+ PRIVATE_SYMBOL = 32,
+
+ DONT_SHOW = DONT_ENUM | SYMBOLIC | PRIVATE_SYMBOL,
+ ABSENT = 64 // Used in runtime to indicate a property is absent.
// ABSENT can never be stored in or returned from a descriptor's attributes
// bitfield. It is only used as a return value meaning the attributes of
// a non-existent property.
@@ -55,7 +35,9 @@ namespace v8 {
namespace internal {
class Smi;
-class Type;
+template<class> class TypeImpl;
+struct ZoneTypeConfig;
+typedef TypeImpl<ZoneTypeConfig> Type;
class TypeInfo;
// Type of properties.
@@ -72,9 +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
};
@@ -102,9 +83,7 @@ class Representation {
static Representation Integer8() { return Representation(kInteger8); }
static Representation UInteger8() { return Representation(kUInteger8); }
static Representation Integer16() { return Representation(kInteger16); }
- static Representation UInteger16() {
- return Representation(kUInteger16);
- }
+ static Representation UInteger16() { return Representation(kUInteger16); }
static Representation Smi() { return Representation(kSmi); }
static Representation Integer32() { return Representation(kInteger32); }
static Representation Double() { return Representation(kDouble); }
@@ -113,9 +92,7 @@ class Representation {
static Representation FromKind(Kind kind) { return Representation(kind); }
- // TODO(rossberg): this should die eventually.
- static Representation FromType(TypeInfo info);
- static Representation FromType(Handle<Type> type);
+ static Representation FromType(Type* type);
bool Equals(const Representation& other) const {
return kind_ == other.kind_;
@@ -147,6 +124,8 @@ 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;
@@ -232,11 +211,11 @@ 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) {
@@ -247,7 +226,7 @@ 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();
@@ -257,26 +236,26 @@ 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);