Class: Moult::Duplication::MethodIndex

Inherits:
Object
  • Object
show all
Defined in:
lib/moult/duplication.rb

Overview

Best-effort line -> enclosing-method resolution, reusing the Prism Parser so the minted ids are byte-identical to the hotspots/deadcode join keys. flay reports a clone's start line only; we attribute it to the innermost method whose span contains that line. Files are parsed lazily and memoised; a fragment outside any method (top-level code, a whole class) resolves to nil.

Instance Method Summary collapse

Constructor Details

#initialize(root:, files:) ⇒ MethodIndex

Returns a new instance of MethodIndex.



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# File 'lib/moult/duplication.rb', line 77

def initialize(root:, files:)
  @abs_by_rel = files.to_h { |abs| [SymbolId.relative_path(abs, root), abs] }
  @cache = {}
end

Instance Method Details

#symbol_id_at(rel_path, line) ⇒ String?

Returns symbol_id of the innermost containing method, or nil.

Returns:

  • (String, nil) —

    symbol_id of the innermost containing method, or nil



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# File 'lib/moult/duplication.rb', line 83

def symbol_id_at(rel_path, line)
  method = enclosing_method(rel_path, line)
  return nil unless method
  SymbolId.for(path: rel_path, start_line: method.span.start_line, fqname: method.name)
end