Class: Goodcheck::Buffer
- Inherits:
-
Object
- Object
- Goodcheck::Buffer
- Defined in:
- lib/goodcheck/buffer.rb
Instance Attribute Summary collapse
-
#content ⇒ Object
readonly
Returns the value of attribute content.
-
#path ⇒ Object
readonly
Returns the value of attribute path.
Instance Method Summary collapse
-
#initialize(path:, content:) ⇒ Buffer
constructor
A new instance of Buffer.
- #line(line_number) ⇒ Object
- #line_starts ⇒ Object
- #location_for_position(position) ⇒ Object
- #position_for_location(line, column) ⇒ Object
Constructor Details
#initialize(path:, content:) ⇒ Buffer
Returns a new instance of Buffer.
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# File 'lib/goodcheck/buffer.rb', line 6 def initialize(path:, content:) @path = path @content = content end |
Instance Attribute Details
#content ⇒ Object (readonly)
Returns the value of attribute content.
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# File 'lib/goodcheck/buffer.rb', line 4 def content @content end |
#path ⇒ Object (readonly)
Returns the value of attribute path.
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# File 'lib/goodcheck/buffer.rb', line 3 def path @path end |
Instance Method Details
#line(line_number) ⇒ Object
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# File 'lib/goodcheck/buffer.rb', line 37 def line(line_number) content.lines[line_number-1] end |
#line_starts ⇒ Object
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# File 'lib/goodcheck/buffer.rb', line 11 def line_starts unless @line_starts @line_starts = [] start_position = 0 content.lines.each do |line| range = start_position..(start_position + line.bytesize) @line_starts << range start_position = range.end end end @line_starts end |
#location_for_position(position) ⇒ Object
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# File 'lib/goodcheck/buffer.rb', line 27 def location_for_position(position) line_index = line_starts.bsearch_index do |range| position < range.end end if line_index [line_index + 1, position - line_starts[line_index].begin] end end |
#position_for_location(line, column) ⇒ Object
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# File 'lib/goodcheck/buffer.rb', line 41 def position_for_location(line, column) if (range = line_starts[line-1]) pos = range.begin + column if pos < range.end pos end end end |