Module: Rbs::Merge

Defined in:
lib/rbs/merge.rb,
lib/rbs/merge/version.rb,
lib/rbs/merge/freeze_node.rb,
lib/rbs/merge/debug_logger.rb,
lib/rbs/merge/file_aligner.rb,
lib/rbs/merge/merge_result.rb,
lib/rbs/merge/node_wrapper.rb,
lib/rbs/merge/smart_merger.rb,
lib/rbs/merge/file_analysis.rb,
lib/rbs/merge/conflict_resolver.rb,
lib/rbs/merge/backends/rbs_backend.rb,
lib/rbs/merge/node_type_normalizer.rb

Defined Under Namespace

Modules: Backends, DebugLogger, NodeTypeNormalizer, Version Classes: ConflictResolver, DestinationParseError, Error, FileAligner, FileAnalysis, FreezeNode, MergeResult, NodeWrapper, ParseError, SmartMerger, TemplateParseError

Constant Summary collapse

BACKEND_REGISTRY =

Tracks whether backends were registered, without class instance variables.

Struct.new(:registered, :mutex).new(false, Mutex.new)
VERSION =

traditional location

Version::VERSION
NodeTypingNormalizer =

Alias for the shared normalizer module from ast-merge

Ast::Merge::NodeTyping::Normalizer

Class Method Summary collapse

Class Method Details

.register_backend! ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Register the RBS backends with TreeHaver

This registers both:

  1. The RBS gem backend (Ruby-based, MRI only)
  2. The tree-sitter-rbs grammar (if available, works on all platforms)

This allows TreeHaver.parser_for(:rbs) to use whichever backend is
available, with the RBS gem preferred when available.



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# File 'lib/rbs/merge.rb', line 103

def register_backend!
  BACKEND_REGISTRY.mutex.synchronize do
    return if BACKEND_REGISTRY.registered

    # Register the RBS gem backend (for MRI Ruby)
    TreeHaver.register_language(
      :rbs,
      backend_module: Backends::RbsBackend,
      backend_type: :rbs,
      gem_name: "rbs",
    )

    # Also register tree-sitter-rbs grammar if available
    # This enables tree-sitter backends (mri, ffi, rust, java) to parse RBS
    grammar_finder = TreeHaver::GrammarFinder.new(:rbs)
    if grammar_finder.available?
      TreeHaver.register_language(
        :rbs,
        path: grammar_finder.find_library_path,
        symbol: grammar_finder.symbol_name,
      )
    end

    BACKEND_REGISTRY.registered = true
  end
end