| /* |
| * 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 "third_party/blink/renderer/platform/wtf/text/string_statics.h" |
| |
| #include "third_party/blink/renderer/platform/wtf/dynamic_annotations.h" |
| #include "third_party/blink/renderer/platform/wtf/static_constructors.h" |
| #include "third_party/blink/renderer/platform/wtf/text/atomic_string.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_impl.h" |
| #include "third_party/blink/renderer/platform/wtf/wtf.h" |
| |
| namespace WTF { |
| |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_null_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_empty_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_star_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_xml_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_xmlns_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_xlink_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_http_atom); |
| WTF_EXPORT DEFINE_GLOBAL(AtomicString, g_https_atom); |
| |
| // This is not an AtomicString because it is unlikely to be used as an |
| // event/element/attribute name, so it shouldn't pollute the AtomicString hash |
| // table. |
| WTF_EXPORT DEFINE_GLOBAL(String, g_xmlns_with_colon); |
| |
| WTF_EXPORT DEFINE_GLOBAL(String, g_empty_string); |
| WTF_EXPORT DEFINE_GLOBAL(String, g_empty_string16_bit); |
| |
| NOINLINE unsigned StringImpl::HashSlowCase() const { |
| if (Is8Bit()) |
| SetHash(StringHasher::ComputeHashAndMaskTop8Bits(Characters8(), length_)); |
| else |
| SetHash(StringHasher::ComputeHashAndMaskTop8Bits(Characters16(), length_)); |
| return ExistingHash(); |
| } |
| |
| void AtomicString::Init() { |
| DCHECK(IsMainThread()); |
| |
| new (NotNull, (void*)&g_null_atom) AtomicString; |
| new (NotNull, (void*)&g_empty_atom) AtomicString(""); |
| } |
| |
| template <unsigned charactersCount> |
| scoped_refptr<StringImpl> AddStaticASCIILiteral( |
| const char (&characters)[charactersCount]) { |
| unsigned length = charactersCount - 1; |
| unsigned hash = StringHasher::ComputeHashAndMaskTop8Bits( |
| reinterpret_cast<const LChar*>(characters), length); |
| return base::AdoptRef(StringImpl::CreateStatic(characters, length, hash)); |
| } |
| |
| void StringStatics::Init() { |
| DCHECK(IsMainThread()); |
| |
| StringImpl::InitStatics(); |
| new (NotNull, (void*)&g_empty_string) String(StringImpl::empty_); |
| new (NotNull, (void*)&g_empty_string16_bit) String(StringImpl::empty16_bit_); |
| |
| // FIXME: These should be allocated at compile time. |
| new (NotNull, (void*)&g_star_atom) AtomicString("*"); |
| new (NotNull, (void*)&g_xml_atom) AtomicString(AddStaticASCIILiteral("xml")); |
| new (NotNull, (void*)&g_xmlns_atom) |
| AtomicString(AddStaticASCIILiteral("xmlns")); |
| new (NotNull, (void*)&g_xlink_atom) |
| AtomicString(AddStaticASCIILiteral("xlink")); |
| new (NotNull, (void*)&g_xmlns_with_colon) String("xmlns:"); |
| new (NotNull, (void*)&g_http_atom) |
| AtomicString(AddStaticASCIILiteral("http")); |
| new (NotNull, (void*)&g_https_atom) |
| AtomicString(AddStaticASCIILiteral("https")); |
| } |
| |
| } // namespace WTF |