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do not store a change operation with no change units

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This commit is contained in:
Josh Holtrop 2017-01-11 22:28:50 -05:00
parent 2057c69585
commit cac339a9f2
1 changed files with 8 additions and 5 deletions
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5
src/core/Buffer.cc
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@ -353,6 +353,8 @@ void Buffer::record_change(size_t offset, size_t length, bool insert)
void Buffer::save_current_operation()
{
if (m_current_change_operation)
{
if (m_current_change_operation->changes.size() > 0u)
{
size_t new_change_operation_index = m_change_operations.size();
if (m_current_change_operation_index < new_change_operation_index)
@ -360,9 +362,10 @@ void Buffer::save_current_operation()
m_change_operations[m_current_change_operation_index]->children.push_back(new_change_operation_index);
}
m_change_operations.push_back(m_current_change_operation);
m_current_change_operation = nullptr;
m_current_change_operation_index = new_change_operation_index;
}
m_current_change_operation = nullptr;
}
}
void Buffer::apply_change_operation(const ChangeOperation & change_operation, bool forward)