Module: CommandT::MRU

Defined in:
lib/command-t/mru.rb

Overview

Maintains a stack of seen buffer numbers in MRU (most recently used) order.

Class Method Summary collapse

Class Method Details

.buffers ⇒ Object

All buffer numbers in the stack, returned as a set for fast membership lookup.



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# File 'lib/command-t/mru.rb', line 17

def buffers
  Set.new(@stack)
end

.delete ⇒ Object

Mark a buffer as deleted, removing it from the stack.



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# File 'lib/command-t/mru.rb', line 39

def delete
  # Note that $curbuf does not point to the buffer that is being deleted;
  # we need to use Vim's <abuf> for the correct buffer number.
  current = ::VIM::evaluate('expand("<abuf>")').to_i
  stack.delete_if { |number| number == current }
end

.last ⇒ Object

The (last) most recent buffer number in the stack, if any.



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# File 'lib/command-t/mru.rb', line 22

def last
  stack.last
end

.stack ⇒ Object

The stack of used buffer numbers in MRU order.



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# File 'lib/command-t/mru.rb', line 11

def stack
  @stack ||= []
end

.touch ⇒ Object

Mark the current buffer as having been used, effectively moving it to the top of the stack. Has no effect on unlisted buffers or buffers without names.



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# File 'lib/command-t/mru.rb', line 29

def touch
  number = $curbuf.number
  return unless ::VIM::evaluate('buflisted(%d)' % number) == 1
  return unless $curbuf.name

  stack.delete number
  stack.push number
end