Class: Moult::Flags::MethodIndex

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

Overview

Best-effort line -> enclosing-method resolution, reusing the Prism Parser so the minted ids are byte-identical to the hotspots/deadcode/duplication join keys. We attribute a call site to the innermost method whose span contains its line; files are parsed lazily and memoised. A reference outside any method (top-level code) resolves to nil. (Mirrors Duplication::MethodIndex.)

Instance Method Summary collapse

Constructor Details

#initialize(root:, files:) ⇒ MethodIndex

Returns a new instance of MethodIndex.



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# File 'lib/moult/flags.rb', line 93

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/flags.rb', line 99

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