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#ifndef SLANG_STRING_SLICE_POOL_H
#define SLANG_STRING_SLICE_POOL_H
#include "slang-string.h"
#include "list.h"
#include "slang-memory-arena.h"
#include "dictionary.h"
namespace Slang {
class StringSlicePool
{
public:
/// Handle of 0 is null. If accessed will be returned as the empty string
enum class Handle : uint32_t;
typedef UnownedStringSlice Slice;
/// Returns the index of a slice, if contained, or -1 if not found
int findIndex(const Slice& slice) const;
/// True if has the slice
bool has(const Slice& slice) { return findIndex(slice) >= 0; }
/// Add a slice
Handle add(const Slice& slice);
/// Empty contents
void clear();
/// Get the slice from the handle
const UnownedStringSlice& getSlice(Handle handle) const { return m_slices[UInt(handle)]; }
/// Get all the slices
const List<UnownedStringSlice>& getSlices() const { return m_slices; }
/// Convert a handle to and index. (A handle is just an index!)
static int asIndex(Handle handle) { return int(handle); }
/// Ctor
StringSlicePool();
protected:
List<UnownedStringSlice> m_slices;
Dictionary<UnownedStringSlice, int> m_map;
MemoryArena m_arena;
};
} // namespace Slang
#endif // SLANG_STRING_SLICE_POOL_H
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