Class: Steep::AST::Buffer
- Inherits:
-
Object
- Object
- Steep::AST::Buffer
- Defined in:
- lib/steep/ast/buffer.rb
Instance Attribute Summary collapse
-
#content ⇒ Object
readonly
Returns the value of attribute content.
-
#lines ⇒ Object
readonly
Returns the value of attribute lines.
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#ranges ⇒ Object
readonly
Returns the value of attribute ranges.
Instance Method Summary collapse
-
#initialize(name:, content:) ⇒ Buffer
constructor
A new instance of Buffer.
- #loc_to_pos(loc) ⇒ Object
- #pos_to_loc(pos) ⇒ Object
- #source(range) ⇒ Object
Constructor Details
#initialize(name:, content:) ⇒ Buffer
Returns a new instance of Buffer.
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# File 'lib/steep/ast/buffer.rb', line 9 def initialize(name:, content:) @name = name @content = content @lines = content.lines @ranges = [] offset = 0 lines.each do |line| size = line.bytesize range = offset .. (offset+size) ranges << range offset += size end end |
Instance Attribute Details
#content ⇒ Object (readonly)
Returns the value of attribute content.
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# File 'lib/steep/ast/buffer.rb', line 5 def content @content end |
#lines ⇒ Object (readonly)
Returns the value of attribute lines.
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# File 'lib/steep/ast/buffer.rb', line 6 def lines @lines end |
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/steep/ast/buffer.rb', line 4 def name @name end |
#ranges ⇒ Object (readonly)
Returns the value of attribute ranges.
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# File 'lib/steep/ast/buffer.rb', line 7 def ranges @ranges end |
Instance Method Details
#loc_to_pos(loc) ⇒ Object
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# File 'lib/steep/ast/buffer.rb', line 37 def loc_to_pos(loc) line, column = loc ranges[line - 1].begin + column end |
#pos_to_loc(pos) ⇒ Object
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# File 'lib/steep/ast/buffer.rb', line 25 def pos_to_loc(pos) index = ranges.bsearch_index do |range| pos < range.end end if index [index + 1, pos - ranges[index].begin] else [1, pos] end end |
#source(range) ⇒ Object
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# File 'lib/steep/ast/buffer.rb', line 42 def source(range) content[range] end |