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Make buffer iterator iteration/dereference faster

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This commit is contained in:
Maxime Coste 2016-07-15 19:48:13 +01:00
parent b988871df6
commit 4ecdbea5c4
2 changed files with 9 additions and 10 deletions
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2
src/buffer.hh
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@ -84,8 +84,8 @@ public:
private:
SafePtr<const Buffer> m_buffer;
StringView m_line;
ByteCoord m_coord;
ByteCount m_line_length;
LineCount m_last_line;
};

17
src/buffer.inl.hh
View File

@ -110,7 +110,7 @@ inline ByteCoord Buffer::end_coord() const
inline BufferIterator::BufferIterator(const Buffer& buffer, ByteCoord coord)
: m_buffer(&buffer), m_coord(coord),
m_line_length((*m_buffer)[m_coord.line].length()),
m_line((*m_buffer)[coord.line]),
m_last_line(buffer.line_count()-1)
{
kak_assert(m_buffer and m_buffer->is_valid(m_coord));
@ -153,7 +153,7 @@ inline bool BufferIterator::operator>=(const BufferIterator& iterator) const
[[gnu::always_inline]]
inline const char& BufferIterator::operator*() const
{
return m_buffer->byte_at(m_coord);
return m_line[m_coord.column];
}
inline const char& BufferIterator::operator[](size_t n) const
@ -181,24 +181,23 @@ inline BufferIterator BufferIterator::operator-(ByteCount size) const
inline BufferIterator& BufferIterator::operator+=(ByteCount size)
{
m_coord = m_buffer->advance(m_coord, size);
m_line_length = m_buffer->line_storage(m_coord.line)->length;
m_line = (*m_buffer)[m_coord.line];
return *this;
}
inline BufferIterator& BufferIterator::operator-=(ByteCount size)
{
m_coord = m_buffer->advance(m_coord, -size);
m_line_length = m_buffer->line_storage(m_coord.line)->length;
m_line = (*m_buffer)[m_coord.line];
return *this;
}
inline BufferIterator& BufferIterator::operator++()
{
if (++m_coord.column == m_line_length and m_coord.line != m_last_line)
if (++m_coord.column == m_line.length() and m_coord.line != m_last_line)
{
++m_coord.line;
m_line = (*m_buffer)[++m_coord.line];
m_coord.column = 0;
m_line_length = m_buffer->line_storage(m_coord.line)->length;
}
return *this;
}
@ -207,8 +206,8 @@ inline BufferIterator& BufferIterator::operator--()
{
if (m_coord.column == 0 and m_coord.line > 0)
{
m_line_length = m_buffer->line_storage(--m_coord.line)->length;
m_coord.column = m_line_length - 1;
m_line = (*m_buffer)[--m_coord.line];
m_coord.column = m_line.length() - 1;
}
else
--m_coord.column;