Class: Snaptoken::DiffLine

Inherits:
Object
  • Object
show all
Defined in:
lib/snaptoken/diff_line.rb

Constant Summary collapse

TYPES = 
[:added, :removed, :unchanged, :folded]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type, source, line_numbers) ⇒ DiffLine

Returns a new instance of DiffLine.



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# File 'lib/snaptoken/diff_line.rb', line 7

def initialize(type, source, line_numbers)
  unless TYPES.include? type
    raise ArgumentError, "type must be one of: #{TYPES.inspect}"
  end
  @type = type
  @source = source.chomp
  @line_numbers = line_numbers
end

Instance Attribute Details

#line_numbers ⇒ Object

Returns the value of attribute line_numbers.



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# File 'lib/snaptoken/diff_line.rb', line 4

def line_numbers
  @line_numbers
end

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/snaptoken/diff_line.rb', line 4

def source
  @source
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/snaptoken/diff_line.rb', line 4

def type
  @type
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/snaptoken/diff_line.rb', line 27

def blank?
  @source.strip.empty?
end

#clone ⇒ Object 



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# File 'lib/snaptoken/diff_line.rb', line 16

def clone
  Snaptoken::DiffLine.new(@type, @source.dup, @line_numbers.dup)
end

#line_number ⇒ Object 



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# File 'lib/snaptoken/diff_line.rb', line 31

def line_number
  case @type
  when :removed, :folded
    @line_numbers[0]
  when :added, :unchanged
    @line_numbers[1]
  end
end

#to_patch(options = {}) ⇒ Object 



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# File 'lib/snaptoken/diff_line.rb', line 40

def to_patch(options = {})
  options[:unchanged_char] ||= " "

  case @type
  when :added
    "+#{@source}\n"
  when :removed
    "-#{@source}\n"
  when :unchanged
    "#{options[:unchanged_char]}#{@source}\n"
  when :folded
    raise "can't convert folded line to patch"
  end
end