Class: RBS::Inline::AST::Annotations::Use

Inherits:
Base
  • Object
show all
Defined in:
lib/rbs/inline/ast/annotations.rb

Overview

‘# @rbs use [USES]`

Instance Attribute Summary collapse

Attributes inherited from Base

#source, #tree

Instance Method Summary collapse

Constructor Details

#initialize(tree, source) ⇒ Use

Returns a new instance of Use.



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# File 'lib/rbs/inline/ast/annotations.rb', line 463

def initialize(tree, source)
  @tree = tree
  @source = source

  @clauses = []

  tree.nth_tree!(1).tap do |use_tree|
    _, *clause_pairs = use_tree.non_trivia_trees
    clause_pairs.each_slice(2) do |clause, _comma|
      if clause.is_a?(Tree)
        *tokens, last_token = clause.non_trivia_trees
        token_strs = tokens.map do |tok|
          if tok.is_a?(Array)
            tok[1]
          else
            raise
          end
        end

        case last_token
        when Array
          # `*` clause
          namespace = Namespace(token_strs.join)
          @clauses << RBS::AST::Directives::Use::WildcardClause.new(
            namespace: namespace,
            location: nil
          )
        when Tree, nil
          if last_token
            if new_name_token = last_token.nth_token(1)
              new_name = new_name_token[1].to_sym
            end
          end

          typename = TypeName(token_strs.join)
          @clauses << RBS::AST::Directives::Use::SingleClause.new(
            type_name: typename,
            new_name: new_name,
            location: nil
          )
        end
      end
    end
  end
end

Instance Attribute Details

#clauses ⇒ Object (readonly)

: Array



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# File 'lib/rbs/inline/ast/annotations.rb', line 460

def clauses
  @clauses
end