Module: Scryer::MethodExtractor

Defined in:
lib/scryer/method_extractor.rb

Constant Summary collapse

MIN_TOKENS =

skip trivial one-liners — not worth flagging as "duplicated"

12

Class Method Summary collapse

Class Method Details

.extract(file:, source:, sexp:) ⇒ Object 



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# File 'lib/scryer/method_extractor.rb', line 21

def extract(file:, source:, sexp:)
  methods = []

  Ast.each_node(sexp) do |node|
    next unless Ast.tagged?(node, :def, :defs)

    name_node = node[0] == :defs ? node[3] : node[1]
    name = Ast.ident_text(name_node) || "?"
    body_node = node.last

    positions = Ast.each_node(body_node).filter_map { |n| Ast.position_of(n) }
    next if positions.empty? # empty method body (e.g. `def foo; end`) — nothing to compare

    start_line = Ast.line_of(name_node) || positions.map(&:first).min
    end_line = positions.map(&:first).max

    tokens = Ast.normalized_tokens(body_node)
    next if tokens.size < MIN_TOKENS

    methods << MethodInfo.new(
      name: name,
      file: file,
      start_line: start_line,
      end_line: end_line,
      token_stream: tokens,
      source_snippet: source.lines[(start_line - 1)...[end_line, source.lines.size].min]&.join
    )
  end

  methods
end