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#include "buffer_manager.hh"

#include "assert.hh"
#include "buffer.hh"
#include "window.hh"
#include "exception.hh"

namespace Kakoune
{

struct name_not_unique : logic_error {};

void BufferManager::register_buffer(Buffer* buffer)
{
    assert(buffer);
    const std::string& name = buffer->name();
    if (m_buffers.find(name) != m_buffers.end())
        throw name_not_unique();

    m_buffers[name] = std::unique_ptr<Buffer>(buffer);
}

void BufferManager::delete_buffer(Buffer* buffer)
{
    assert(buffer);
    auto buffer_it = m_buffers.find(buffer->name());
    assert(buffer_it->second.get() == buffer);
    m_buffers.erase(buffer_it);
}

Buffer* BufferManager::get_buffer(const std::string& name)
{
    if (m_buffers.find(name) == m_buffers.end())
        return nullptr;

    return m_buffers[name].get();
}


}