static inline void tokenizeSpaceSplitString(TokenProcessor& tokenProcessor, const String& string)
{
ASSERT(!string.isNull());
const StringImpl* stringImpl = string.impl();
if (stringImpl->is8Bit())
tokenizeSpaceSplitString(tokenProcessor, stringImpl->characters8(), stringImpl->length());
else
tokenizeSpaceSplitString(tokenProcessor, stringImpl->characters16(), stringImpl->length());
}
bool SpaceSplitString::spaceSplitStringContainsValue(const String& inputString, const char* value, unsigned valueLength, bool shouldFoldCase)
{
if (inputString.isNull())
return false;
TokenIsEqualToCStringTokenProcessor tokenProcessor(value, valueLength);
tokenizeSpaceSplitString(tokenProcessor, shouldFoldCase ? inputString.impl()->convertToASCIILowercase() : inputString);
return tokenProcessor.referenceStringWasFound();
}
inline PassRefPtr<SpaceSplitStringData> SpaceSplitStringData::create(const AtomicString& keyString, unsigned tokenCount)
{
ASSERT(tokenCount);
RELEASE_ASSERT(tokenCount < (std::numeric_limits<unsigned>::max() - sizeof(SpaceSplitStringData)) / sizeof(AtomicString));
unsigned sizeToAllocate = sizeof(SpaceSplitStringData) + tokenCount * sizeof(AtomicString);
SpaceSplitStringData* spaceSplitStringData = static_cast<SpaceSplitStringData*>(fastMalloc(sizeToAllocate));
new (NotNull, spaceSplitStringData) SpaceSplitStringData(keyString, tokenCount);
AtomicString* tokenArrayStart = spaceSplitStringData->tokenArrayStart();
TokenAtomicStringInitializer tokenInitializer(tokenArrayStart);
tokenizeSpaceSplitString(tokenInitializer, keyString);
ASSERT(static_cast<unsigned>(tokenInitializer.nextMemoryBucket() - tokenArrayStart) == tokenCount);
ASSERT(reinterpret_cast<const char*>(tokenInitializer.nextMemoryBucket()) == reinterpret_cast<const char*>(spaceSplitStringData) + sizeToAllocate);
return adoptRef(spaceSplitStringData);
}
PassRefPtr<SpaceSplitStringData> SpaceSplitStringData::create(const AtomicString& keyString)
{
ASSERT(isMainThread());
ASSERT(!keyString.isNull());
auto addResult = spaceSplitStringTable().add(keyString, nullptr);
if (!addResult.isNewEntry)
return addResult.iterator->value;
// Nothing in the cache? Let's create a new SpaceSplitStringData if the input has something useful.
// 1) We find the number of strings in the input to know how much size we need to allocate.
TokenCounter tokenCounter;
tokenizeSpaceSplitString(tokenCounter, keyString);
unsigned tokenCount = tokenCounter.tokenCount();
if (!tokenCount)
return nullptr;
RefPtr<SpaceSplitStringData> spaceSplitStringData = create(keyString, tokenCount);
addResult.iterator->value = spaceSplitStringData.get();
return spaceSplitStringData.release();
}
