void JSString::resolveRope(ExecState* exec) const
{
ASSERT(isRope());
UChar* buffer;
if (PassRefPtr<StringImpl> newImpl = StringImpl::tryCreateUninitialized(m_length, buffer))
m_value = newImpl;
else {
outOfMemory(exec);
return;
}
for (size_t i = 0; i < s_maxInternalRopeLength && m_fibers[i]; ++i) {
if (m_fibers[i]->isRope())
return resolveRopeSlowCase(exec, buffer);
}
UChar* position = buffer;
for (size_t i = 0; i < s_maxInternalRopeLength && m_fibers[i]; ++i) {
StringImpl* string = m_fibers[i]->m_value.impl();
unsigned length = string->length();
StringImpl::copyChars(position, string->characters(), length);
position += length;
m_fibers[i].clear();
}
ASSERT((buffer + m_length) == position);
ASSERT(!isRope());
}
void JSRopeString::resolveRope(ExecState* exec) const
{
ASSERT(isRope());
if (is8Bit()) {
LChar* buffer;
if (RefPtr<StringImpl> newImpl = StringImpl::tryCreateUninitialized(m_length, buffer)) {
Heap::heap(this)->reportExtraMemoryCost(newImpl->cost());
m_value = newImpl.release();
} else {
outOfMemory(exec);
return;
}
for (size_t i = 0; i < s_maxInternalRopeLength && m_fibers[i]; ++i) {
if (m_fibers[i]->isRope())
return resolveRopeSlowCase8(buffer);
}
LChar* position = buffer;
for (size_t i = 0; i < s_maxInternalRopeLength && m_fibers[i]; ++i) {
StringImpl* string = m_fibers[i]->m_value.impl();
unsigned length = string->length();
StringImpl::copyChars(position, string->characters8(), length);
position += length;
m_fibers[i].clear();
}
ASSERT((buffer + m_length) == position);
ASSERT(!isRope());
return;
}
UChar* buffer;
if (RefPtr<StringImpl> newImpl = StringImpl::tryCreateUninitialized(m_length, buffer)) {
Heap::heap(this)->reportExtraMemoryCost(newImpl->cost());
m_value = newImpl.release();
} else {
outOfMemory(exec);
return;
}
for (size_t i = 0; i < s_maxInternalRopeLength && m_fibers[i]; ++i) {
if (m_fibers[i]->isRope())
return resolveRopeSlowCase(buffer);
}
UChar* position = buffer;
for (size_t i = 0; i < s_maxInternalRopeLength && m_fibers[i]; ++i) {
StringImpl* string = m_fibers[i]->m_value.impl();
unsigned length = string->length();
StringImpl::copyChars(position, string->characters(), length);
position += length;
m_fibers[i].clear();
}
ASSERT((buffer + m_length) == position);
ASSERT(!isRope());
}
void TiString::resolveRope(TiExcState* exec) const
{
ASSERT(isRope());
UChar* buffer;
if (PassRefPtr<StringImpl> newImpl = StringImpl::tryCreateUninitialized(m_length, buffer))
m_value = newImpl;
else {
outOfMemory(exec);
return;
}
RopeImpl::Fiber currentFiber = m_fibers[0];
if ((m_fiberCount > 2) || (RopeImpl::isRope(currentFiber))
|| ((m_fiberCount == 2) && (RopeImpl::isRope(m_fibers[1])))) {
resolveRopeSlowCase(exec, buffer);
return;
}
UChar* position = buffer;
StringImpl* string = static_cast<StringImpl*>(currentFiber);
unsigned length = string->length();
StringImpl::copyChars(position, string->characters(), length);
if (m_fiberCount > 1) {
position += length;
currentFiber = m_fibers[1];
string = static_cast<StringImpl*>(currentFiber);
length = string->length();
StringImpl::copyChars(position, string->characters(), length);
position += length;
}
ASSERT((buffer + m_length) == position);
for (unsigned i = 0; i < m_fiberCount; ++i) {
RopeImpl::deref(m_fibers[i]);
m_fibers[i] = 0;
}
m_fiberCount = 0;
ASSERT(!isRope());
}
void JSRopeString::resolveRopeInternal16NoSubstring(UChar* buffer) const
{
for (size_t i = 0; i < s_maxInternalRopeLength && fiber(i); ++i) {
if (fiber(i)->isRope()) {
resolveRopeSlowCase(buffer);
return;
}
}
UChar* position = buffer;
for (size_t i = 0; i < s_maxInternalRopeLength && fiber(i); ++i) {
const StringImpl& fiberString = *fiber(i)->m_value.impl();
unsigned length = fiberString.length();
if (fiberString.is8Bit())
StringImpl::copyChars(position, fiberString.characters8(), length);
else
StringImpl::copyChars(position, fiberString.characters16(), length);
position += length;
}
ASSERT((buffer + length()) == position);
}
