WTF/JSC update to r148273

This brings in various bug fixes in the ARM and MIPS assemblers as well as
a Yarr crash fix and performance fix.

This change doesn't compile as-is, but the next change will
apply the modifications necessary to compile. That'll make future updates
easier as it allows for cherry-picking because the modifications are usually
always the same.

Change-Id: Iac32f62c71e8ff908deb41f28f12fbc98c0823e1
Reviewed-by: Lars Knoll <lars.knoll@digia.com>

1 files changed, 134 insertions, 0 deletions

diff --git a/src/3rdparty/masm/wtf/EnumClass.h b/src/3rdparty/masm/wtf/EnumClass.h
new file mode 100644
index 0000000000..a5729b3b97
--- /dev/null
+++ b/src/3rdparty/masm/wtf/EnumClass.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2013 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. 
+ */
+
+#ifndef WTF_EnumClass_h
+#define WTF_EnumClass_h
+
+#include <wtf/Compiler.h>
+
+namespace WTF {
+
+// How to define a type safe enum list using the ENUM_CLASS macros?
+// ===============================================================
+// To get an enum list like this:
+//
+//     enum class MyEnums {
+//         Value1,
+//         Value2,
+//         ...
+//         ValueN
+//     };
+//
+// ... write this:
+//
+//     ENUM_CLASS(MyEnums) {
+//         Value1,
+//         Value2,
+//         ...
+//         ValueN
+//     } ENUM_CLASS_END(MyEnums);
+//
+// The ENUM_CLASS macros will use C++11's enum class if the compiler supports it.
+// Otherwise, it will use the EnumClass template below.
+
+#if COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
+
+#define ENUM_CLASS(__enumName) \
+    enum class __enumName
+
+#define ENUM_CLASS_END(__enumName)
+
+#else // !COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
+
+// How to define a type safe enum list using the EnumClass template?
+// ================================================================
+// Definition should be a struct that encapsulates an enum list.
+// The enum list should be names Enums.
+//
+// Here's an example of how to define a type safe enum named MyEnum using
+// the EnumClass template:
+//
+//     struct MyEnumDefinition {
+//         enum Enums {
+//             ValueDefault,
+//             Value1,
+//             ...
+//             ValueN
+//         };
+//     };
+//     typedef EnumClass<MyEnumDefinition, MyEnumDefinition::ValueDefault> MyEnum;
+//
+// With that, you can now use MyEnum enum values as follow:
+//
+//     MyEnum value1; // value1 is assigned MyEnum::ValueDefault by default.
+//     MyEnum value2 = MyEnum::Value1; // value2 is assigned MyEnum::Value1;
+
+template <typename Definition>
+class EnumClass : public Definition {
+    typedef enum Definition::Enums Value;
+public:
+    ALWAYS_INLINE EnumClass() { }
+    ALWAYS_INLINE EnumClass(Value value) : m_value(value) { }
+
+    ALWAYS_INLINE Value value() const { return m_value; }
+
+    ALWAYS_INLINE bool operator==(const EnumClass other) { return m_value == other.m_value; }
+    ALWAYS_INLINE bool operator!=(const EnumClass other) { return m_value != other.m_value; }
+    ALWAYS_INLINE bool operator<(const EnumClass other) { return m_value < other.m_value; }
+    ALWAYS_INLINE bool operator<=(const EnumClass other) { return m_value <= other.m_value; }
+    ALWAYS_INLINE bool operator>(const EnumClass other) { return m_value > other.m_value; }
+    ALWAYS_INLINE bool operator>=(const EnumClass other) { return m_value >= other.m_value; }
+
+    ALWAYS_INLINE bool operator==(const Value value) { return m_value == value; }
+    ALWAYS_INLINE bool operator!=(const Value value) { return m_value != value; }
+    ALWAYS_INLINE bool operator<(const Value value) { return m_value < value; }
+    ALWAYS_INLINE bool operator<=(const Value value) { return m_value <= value; }
+    ALWAYS_INLINE bool operator>(const Value value) { return m_value > value; }
+    ALWAYS_INLINE bool operator>=(const Value value) { return m_value >= value; }
+
+    ALWAYS_INLINE operator Value() { return m_value; }
+
+private:
+    Value m_value;
+};
+
+#define ENUM_CLASS(__enumName) \
+    struct __enumName ## Definition { \
+        enum Enums
+
+#define ENUM_CLASS_END(__enumName) \
+        ; \
+    }; \
+    typedef EnumClass< __enumName ## Definition > __enumName
+
+#endif // !COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
+
+} // namespace WTF
+
+#if !COMPILER_SUPPORTS(CXX_STRONG_ENUMS)
+using WTF::EnumClass;
+#endif
+
+#endif // WTF_EnumClass_h