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File Manager

Path: /opt/chef/embedded/lib/ruby/gems/2.7.0/gems/pry-0.13.1/lib/pry/commands/

Viewing File: show_doc.rb

# frozen_string_literal: true

class Pry
  class Command
    class ShowDoc < Command::ShowInfo
      include Pry::Helpers::DocumentationHelpers

      match 'show-doc'
      group 'Introspection'
      description 'Show the documentation for a method or class.'

      banner <<-BANNER
        Usage:   show-doc [OPTIONS] [METH]
        Aliases: ?

        Show the documentation for a method or class. Tries instance methods first and
        then methods by default.

        show-doc hi_method # docs for hi_method
        show-doc Pry       # for Pry class
        show-doc Pry -a    # for all definitions of Pry class (all monkey patches)
      BANNER

      def process
        super

        output.puts(
          "\nWARNING: the show-doc command is deprecated. It will be removed " \
          "from future Pry versions.\nPlease use 'show-source' with the -d " \
          "(or --doc) switch instead\nExample: show-source #{obj_name} -d"
        )
      end

      # The docs for code_object prepared for display.
      def content_for(code_object)
        Code.new(
          render_doc_markup_for(code_object),
          start_line_for(code_object),
          :text
        ).with_line_numbers(use_line_numbers?).to_s
      end

      # process the markup (if necessary) and apply colors
      def render_doc_markup_for(code_object)
        docs = docs_for(code_object)

        if code_object.command?
          # command '--help' shouldn't use markup highlighting
          docs
        else
          if docs.empty?
            raise CommandError, "No docs found for: #{obj_name || 'current context'}"
          end

          process_comment_markup(docs)
        end
      end

      # Return docs for the code_object, adjusting for whether the code_object
      # has yard docs available, in which case it returns those.
      # (note we only have to check yard docs for modules since they can
      # have multiple docs, but methods can only be doc'd once so we
      # dont need to check them)
      def docs_for(code_object)
        if code_object.module_with_yard_docs?
          # yard docs
          code_object.yard_doc
        else
          # normal docs (i.e comments above method/module/command)
          code_object.doc
        end
      end

      # Which sections to include in the 'header', can toggle: :owner,
      # :signature and visibility.
      def header_options
        super.merge signature: true
      end

      # figure out start line of docs by back-calculating based on
      # number of lines in the comment and the start line of the code_object
      # @return [Fixnum] start line of docs
      def start_line_for(code_object)
        return 1 if code_object.command? || opts.present?(:'base-one')
        return 1 unless code_object.source_line

        code_object.source_line - code_object.doc.lines.count
      end
    end

    Pry::Commands.add_command(Pry::Command::ShowDoc)
    Pry::Commands.alias_command '?', 'show-doc'
  end
end