Merge branch 'master' of ssh://codereview.qt-project.org:29418/playground/v4vm into v4

This is the initial merge of the v4vm JS engine, designed specifically for QML.

The engine is tested on Linux and Mac OS X, works on x86, x86-64 and ARM.

Change-Id: I826b72cfa3d3575007b70d78604080582db568db

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

1 files changed, 181 insertions, 0 deletions

diff --git a/src/3rdparty/masm/wtf/ASCIICType.h b/src/3rdparty/masm/wtf/ASCIICType.h
new file mode 100644
index 0000000000..18e108e1bf
--- /dev/null
+++ b/src/3rdparty/masm/wtf/ASCIICType.h
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2007, 2008, 2009, 2011 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. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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_ASCIICType_h
+#define WTF_ASCIICType_h
+
+#include <wtf/Assertions.h>
+
+// The behavior of many of the functions in the <ctype.h> header is dependent
+// on the current locale. But in the WebKit project, all uses of those functions
+// are in code processing something that's not locale-specific. These equivalents
+// for some of the <ctype.h> functions are named more explicitly, not dependent
+// on the C library locale, and we should also optimize them as needed.
+
+// All functions return false or leave the character unchanged if passed a character
+// that is outside the range 0-7F. So they can be used on Unicode strings or
+// characters if the intent is to do processing only if the character is ASCII.
+
+namespace WTF {
+
+template<typename CharType> inline bool isASCII(CharType c)
+{
+    return !(c & ~0x7F);
+}
+
+template<typename CharType> inline bool isASCIIAlpha(CharType c)
+{
+    return (c | 0x20) >= 'a' && (c | 0x20) <= 'z';
+}
+
+template<typename CharType> inline bool isASCIIDigit(CharType c)
+{
+    return c >= '0' && c <= '9';
+}
+
+template<typename CharType> inline bool isASCIIAlphanumeric(CharType c)
+{
+    return isASCIIDigit(c) || isASCIIAlpha(c);
+}
+
+template<typename CharType> inline bool isASCIIHexDigit(CharType c)
+{
+    return isASCIIDigit(c) || ((c | 0x20) >= 'a' && (c | 0x20) <= 'f');
+}
+
+template<typename CharType> inline bool isASCIILower(CharType c)
+{
+    return c >= 'a' && c <= 'z';
+}
+
+template<typename CharType> inline bool isASCIIOctalDigit(CharType c)
+{
+    return (c >= '0') & (c <= '7');
+}
+
+template<typename CharType> inline bool isASCIIPrintable(CharType c)
+{
+    return c >= ' ' && c <= '~';
+}
+
+/*
+ Statistics from a run of Apple's page load test for callers of isASCIISpace:
+
+ character          count
+ ---------          -----
+ non-spaces         689383
+ 20  space          294720
+ 0A  \n             89059
+ 09  \t             28320
+ 0D  \r             0
+ 0C  \f             0
+ 0B  \v             0
+ */
+template<typename CharType> inline bool isASCIISpace(CharType c)
+{
+    return c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9));
+}
+
+template<typename CharType> inline bool isASCIIUpper(CharType c)
+{
+    return c >= 'A' && c <= 'Z';
+}
+
+template<typename CharType> inline CharType toASCIILower(CharType c)
+{
+    return c | ((c >= 'A' && c <= 'Z') << 5);
+}
+
+template<typename CharType> inline CharType toASCIILowerUnchecked(CharType character)
+{
+    // This function can be used for comparing any input character
+    // to a lowercase English character. The isASCIIAlphaCaselessEqual
+    // below should be used for regular comparison of ASCII alpha
+    // characters, but switch statements in CSS tokenizer require
+    // direct use of this function.
+    return character | 0x20;
+}
+
+template<typename CharType> inline CharType toASCIIUpper(CharType c)
+{
+    return c & ~((c >= 'a' && c <= 'z') << 5);
+}
+
+template<typename CharType> inline int toASCIIHexValue(CharType c)
+{
+    ASSERT(isASCIIHexDigit(c));
+    return c < 'A' ? c - '0' : (c - 'A' + 10) & 0xF;
+}
+
+template<typename CharType> inline int toASCIIHexValue(CharType upperValue, CharType lowerValue)
+{
+    ASSERT(isASCIIHexDigit(upperValue) && isASCIIHexDigit(lowerValue));
+    return ((toASCIIHexValue(upperValue) << 4) & 0xF0) | toASCIIHexValue(lowerValue);
+}
+
+inline char lowerNibbleToASCIIHexDigit(char c)
+{
+    char nibble = c & 0xF;
+    return nibble < 10 ? '0' + nibble : 'A' + nibble - 10;
+}
+
+inline char upperNibbleToASCIIHexDigit(char c)
+{
+    char nibble = (c >> 4) & 0xF;
+    return nibble < 10 ? '0' + nibble : 'A' + nibble - 10;
+}
+
+template<typename CharType> inline bool isASCIIAlphaCaselessEqual(CharType cssCharacter, char character)
+{
+    // This function compares a (preferrably) constant ASCII
+    // lowercase letter to any input character.
+    ASSERT(character >= 'a' && character <= 'z');
+    return LIKELY(toASCIILowerUnchecked(cssCharacter) == character);
+}
+
+}
+
+using WTF::isASCII;
+using WTF::isASCIIAlpha;
+using WTF::isASCIIAlphanumeric;
+using WTF::isASCIIDigit;
+using WTF::isASCIIHexDigit;
+using WTF::isASCIILower;
+using WTF::isASCIIOctalDigit;
+using WTF::isASCIIPrintable;
+using WTF::isASCIISpace;
+using WTF::isASCIIUpper;
+using WTF::toASCIIHexValue;
+using WTF::toASCIILower;
+using WTF::toASCIILowerUnchecked;
+using WTF::toASCIIUpper;
+using WTF::lowerNibbleToASCIIHexDigit;
+using WTF::upperNibbleToASCIIHexDigit;
+using WTF::isASCIIAlphaCaselessEqual;
+
+#endif