Class: SorbetView::Compiler::HeredocExtractor

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Defined in:
lib/sorbet_view/compiler/heredoc_extractor.rb

Constant Summary collapse

ERB_TEMPLATE_PATTERN = 
/erb_template\s+<<~([A-Z_]+)/

Class Method Summary collapse

Class Method Details

.contains_erb_template?(source) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sorbet_view/compiler/heredoc_extractor.rb', line 20

def self.contains_erb_template?(source)
  ERB_TEMPLATE_PATTERN.match?(source)
end

.extract(source, file_path) ⇒ Object 



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# File 'lib/sorbet_view/compiler/heredoc_extractor.rb', line 25

def self.extract(source, file_path)
  extractions = T.let([], T::Array[HeredocExtraction])
  lines = source.lines

  i = 0
  while i < lines.length
    line = T.must(lines[i])
    match = ERB_TEMPLATE_PATTERN.match(line)
    if match
      delimiter = T.must(match[1])
      heredoc_start = i + 1
      heredoc_lines = T.let([], T::Array[String])

      j = heredoc_start
      while j < lines.length
        heredoc_line = T.must(lines[j])
        break if heredoc_line.strip == delimiter

        heredoc_lines << heredoc_line
        j += 1
      end

      erb_source, column_offset = dedent_heredoc(heredoc_lines)
      class_name = class_name_from_source(source)

      extractions << HeredocExtraction.new(
        erb_source: erb_source,
        line_offset: heredoc_start,
        column_offset: column_offset,
        class_name: class_name,
        component_path: file_path
      )

      i = j + 1
    else
      i += 1
    end
  end

  extractions
end