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Class: RBS::Buffer

Relationships & Source Files
Inherits: Object
Defined in: lib/rbs/buffer.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(name:, content:) ⇒ Buffer

[ GitHub ] 

  


# File 'lib/rbs/buffer.rb', line 8



def initialize(name:, content:)
  @name = name
  @content = content
end


  







Instance Attribute Details



  

    #content   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 6



attr_reader :content


  








  

    #name   (readonly)
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 5



attr_reader :name


  







Instance Method Details



  

    #inspect  
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 63



def inspect
  "#<RBS::Buffer:#{__id__} @name=#{name}, @content=#{content.bytesize} bytes, @lines=#{lines.size} lines,>"
end


  








  

    #last_position  
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 59



def last_position
  content.size
end


  








  

    #lines  
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 13



def lines
  @lines ||= content.lines
end


  








  

    #loc_to_pos(loc)  
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 49



def loc_to_pos(loc)
  line, column = loc

  if range = ranges[line - 1]
    range.begin + column
  else
    last_position
  end
end


  








  

    #pos_to_loc(pos)  
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 37



def pos_to_loc(pos)
  index = ranges.bsearch_index do |range|
    pos < range.end ? true : false
  end

  if index
    [index + 1, pos - ranges[index].begin]
  else
    [ranges.size + 1, 0]
  end
end


  








  

    #ranges  
  

  [ GitHub ]


  

  


# File 'lib/rbs/buffer.rb', line 17



def ranges
  @ranges ||=
    begin
      @ranges = []
      offset = 0
      lines.each do |line|
        size = line.size
        range = offset...(offset+size)
        @ranges << range
        offset += size
      end

      if !content.end_with?("\n") && content.size > 0
        @ranges[-1] = @ranges[-1].begin...(@ranges[-1].end+1)
      end

      @ranges
    end
end