Contents

module Wool
  module SexpAnalysis
    # This is a *global* annotation, namely the one that determines the statically-known
    # scope for each node in the AST, at the time of that node's execution. For
    # example, every node should be able to say "hey scope, what's 'this' for this
    # statement?", and be able to return its type (*NOT* its class, they're different).
    module ScopeAnnotation
      extend BasicAnnotation
      add_property :scope
      
      # This is the annotator for the parent annotation.
      class Annotator
        include Visitor
        def annotate!(root)
          @current_scope = Scope::GlobalScope
          visit(root)
        end
        
        # Replaces the general node visit method with one that assigns
        # the current scope to the visited node.
        def default_visit(node)
          node.scope = @current_scope
        end
        
        def visit_module(node)
          path_node, body = node.children
        end
        
        def visit_class(node)
          path_to_new_class, superclass, body = node.children
          superclass = superclass ? superclass.eval_as_constant(@current_scope) : ClassRegistry['Object']
        end
      end
      add_global_annotator Annotator
    end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
wool-0.5.1	lib/wool/analysis/annotations/scope_annotation.rb