Contents

#
# Extensions to +Module+ needed by Reek.
#
class Module
  def const_or_nil(sym)
    const_defined?(sym) ? const_get(sym) : nil
  end
end

module Reek
  module Core

    #
    # Superclass for all types of source code context. Each instance represents
    # a code element of some kind, and each provides behaviour relevant to that
    # code element. CodeContexts form a tree in the same way the code does,
    # with each context holding a reference to a unique outer context.
    #
    class CodeContext

      attr_reader :name, :exp

      def initialize(outer, exp)
        @outer = outer
        @exp = exp
        @scope_connector = ''
      end

      def local_nodes(type, &blk)
        each_node(type, [:class, :module], &blk)
      end

      def each_node(type, ignoring, &blk)
        if block_given?
          @exp.look_for(type, ignoring, &blk)
        else
          result = []
          @exp.look_for(type, ignoring) {|exp| result << exp}
          result
        end
      end

      # SMELL: Temporary Field -- @name isn't always initialized
      def matches?(strings)
        me = @name.to_s
        strings.any? do |str|
          re = /#{str}/
          re === me or re === self.full_name
        end
      end

      #
      # Bounces messages up the context tree to the first enclosing context
      # that knows how to deal with the request.
      #
      def method_missing(method, *args)
        @outer.send(method, *args)
      end

      def num_methods
        0
      end

      def full_name
        outer = @outer ? @outer.full_name : ''
        prefix = outer == '' ? '' : "#{outer}#{@scope_connector}"
        "#{prefix}#{@name}"
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
reek-1.2.7.1	lib/reek/core/code_context.rb
reek-1.2.7	lib/reek/core/code_context.rb