+++ /dev/null
-/*
- * Copyright (C) 2010 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.
- */
-
-#include "config.h"
-
-#ifdef SKIP_STATIC_CONSTRUCTORS_ON_GCC
-#define ATOMICSTRING_HIDE_GLOBALS 1
-#endif
-
-#include "AtomicString.h"
-#include "DynamicAnnotations.h"
-#include "StaticConstructors.h"
-#include "StringImpl.h"
-
-namespace WTF {
-
-StringImpl* StringImpl::empty()
-{
- // FIXME: This works around a bug in our port of PCRE, that a regular expression
- // run on the empty string may still perform a read from the first element, and
- // as such we need this to be a valid pointer. No code should ever be reading
- // from a zero length string, so this should be able to be a non-null pointer
- // into the zero-page.
- // Replace this with 'reinterpret_cast<UChar*>(static_cast<intptr_t>(1))' once
- // PCRE goes away.
- static UChar emptyUCharData = 0;
- DEFINE_STATIC_LOCAL(StringImpl, emptyString, (&emptyUCharData, 0, ConstructStaticString));
- WTF_ANNOTATE_BENIGN_RACE(&emptyString, "Benign race on StringImpl::emptyString reference counter");
- return &emptyString;
-}
-
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, nullAtom)
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, emptyAtom, "")
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, textAtom, "#text")
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, commentAtom, "#comment")
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, starAtom, "*")
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, xmlAtom, "xml")
-JS_EXPORTDATA DEFINE_GLOBAL(AtomicString, xmlnsAtom, "xmlns")
-
-void AtomicString::init()
-{
- static bool initialized;
- if (!initialized) {
- // On iPhone WebKit, isMainThread() tests for the Web Thread, so use pthread_main_np() instead.
- ASSERT(pthread_main_np());
-
- // Use placement new to initialize the globals.
- new ((void*)&nullAtom) AtomicString;
- new ((void*)&emptyAtom) AtomicString("");
- new ((void*)&textAtom) AtomicString("#text");
- new ((void*)&commentAtom) AtomicString("#comment");
- new ((void*)&starAtom) AtomicString("*");
- new ((void*)&xmlAtom) AtomicString("xml");
- new ((void*)&xmlnsAtom) AtomicString("xmlns");
-
- initialized = true;
- }
-}
-
-}