Class: Parser::Source::Range

Inherits:
Object
  • Object
show all
Defined in:
lib/parser/source/range.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source_buffer, begin_pos, end_pos) ⇒ Range

Returns a new instance of Range.



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# File 'lib/parser/source/range.rb', line 8

def initialize(source_buffer, begin_pos, end_pos)
  @source_buffer       = source_buffer
  @begin_pos, @end_pos = begin_pos, end_pos

  freeze
end

Instance Attribute Details

#begin_pos ⇒ Object (readonly)

Returns the value of attribute begin_pos.



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# File 'lib/parser/source/range.rb', line 6

def begin_pos
  @begin_pos
end

#end_pos ⇒ Object (readonly)

Returns the value of attribute end_pos.



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# File 'lib/parser/source/range.rb', line 6

def end_pos
  @end_pos
end

#source_buffer ⇒ Object (readonly)

Returns the value of attribute source_buffer.



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# File 'lib/parser/source/range.rb', line 5

def source_buffer
  @source_buffer
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/parser/source/range.rb', line 73

def ==(other)
  other.is_a?(Range) &&
    @source_buffer == other.source_buffer &&
    @begin_pos     == other.begin_pos     &&
    @end_pos       == other.end_pos
end

#begin ⇒ Object 



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# File 'lib/parser/source/range.rb', line 15

def begin
  Range.new(@source_buffer, @begin_pos, @begin_pos)
end

#column ⇒ Object 



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# File 'lib/parser/source/range.rb', line 35

def column
  _, column = @source_buffer.decompose_position(@begin_pos)

  column
end

#column_range ⇒ Object 



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# File 'lib/parser/source/range.rb', line 41

def column_range
  self.begin.column...self.end.column
end

#end ⇒ Object 



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# File 'lib/parser/source/range.rb', line 19

def end
  Range.new(@source_buffer, @end_pos, @end_pos)
end

#inspect ⇒ Object 



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# File 'lib/parser/source/range.rb', line 80

def inspect
  "#<Source::Range #{@source_buffer.name} #{@begin_pos}...#{@end_pos}>"
end

#is?(*what) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/parser/source/range.rb', line 53

def is?(*what)
  what.include?(to_source)
end

#join(other) ⇒ Object 



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# File 'lib/parser/source/range.rb', line 67

def join(other)
  Range.new(@source_buffer,
      [@begin_pos, other.begin_pos].min,
      [@end_pos,   other.end_pos].max)
end

#line ⇒ Object 



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# File 'lib/parser/source/range.rb', line 29

def line
  line, _ = @source_buffer.decompose_position(@begin_pos)

  line
end

#size ⇒ Object Also known as: length 



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# File 'lib/parser/source/range.rb', line 23

def size
  @end_pos - @begin_pos
end

#source_line ⇒ Object 



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# File 'lib/parser/source/range.rb', line 45

def source_line
  @source_buffer.source_line(line)
end

#to_a ⇒ Object 



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# File 'lib/parser/source/range.rb', line 57

def to_a
  (@begin_pos...@end_pos).to_a
end

#to_s ⇒ Object 



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# File 'lib/parser/source/range.rb', line 61

def to_s
  line, column = @source_buffer.decompose_position(@begin_pos)

  [@source_buffer.name, line, column + 1].join(':')
end

#to_source ⇒ Object 



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# File 'lib/parser/source/range.rb', line 49

def to_source
  @source_buffer.source[self.begin_pos...self.end_pos]
end