bool Rule::Variant::loadFromStream(istream& stream)
{
if (isString() && data.String.value)
{
destruct_range(data.String.value, data.String.value + data.String.size + 1);
allocator<char>::deallocate(data.String.value, data.String.size + 1);
}
stream >> type;
switch (trueType())
{
case TFromTo:
stream >> data.Char.value1 >> data.Char.value2;
return true;
case TChar:
stream >> data.Char.value1;
return true;
case TString:
stream >> data.String.size;
data.String.value = allocator<char>::allocate(data.String.size + 1);
if (!stream.readToBuffer(data.String.value, data.String.size)) return false;
data.String.value[data.String.size] = 0;
return true;
default:
return false;
}
}
bool Rule::Variant::loadFromData(const char*& buffer)
{
if (isString() && data.String.value)
{
destruct_range(data.String.value, data.String.value + data.String.size + 1);
allocator<char>::deallocate(data.String.value, data.String.size + 1);
}
type = *buffer;
++buffer;
switch (trueType())
{
case TFromTo:
data.Char.value1 = *buffer;
++buffer;
data.Char.value2 = *buffer;
++buffer;
return true;
case TChar:
data.Char.value1 = *buffer;
++buffer;
return true;
case TString:
data.String.size = *reinterpret_cast<const size_t*>(buffer);
buffer += sizeof(size_t);
data.String.value = allocator<char>::allocate(data.String.size + 1);
if (!memcpy(data.String.value, buffer, data.String.size)) return false;
buffer += data.String.size;
data.String.value[data.String.size] = 0;
return true;
default:
return false;
}
}
Rule::Variant& Rule::Variant::operator=(const Variant& x)
{
if (&x != this)
{
if (x.isString() && isString())
{
destruct_range(data.String.value, data.String.value + data.String.size + 1);
allocator<char>::deallocate(data.String.value, data.String.size + 1);
}
type = x.type;
switch (trueType())
{
case TFromTo:
case TChar:
memcpy(&data, &x.data, sizeof(data));
break;
case TString:
data.String.size = x.data.String.size;
data.String.value = allocator<char>::allocate(data.String.size + 1);
strcpy(data.String.value, x.data.String.value);
data.String.value[data.String.size] = 0;
break;
default:
break;
}
}
return *this;
}
Rule::Variant::~Variant()
{
if (isString() && data.String.value)
{
destruct_range(data.String.value, data.String.value + data.String.size + 1);
allocator<char>::deallocate(data.String.value, data.String.size + 1);
}
}
void MaxArray<T,C>::clear() {
destruct_range(data(), _size);
_size = 0;
}
MaxArray<T,C>::~MaxArray() {
destruct_range(data(), _size);
}