1 files changed, 0 insertions, 96 deletions
diff --git a/lib/irb/cmd/show_source.rb b/lib/irb/cmd/show_source.rb
deleted file mode 100644
index feff8315f6..0000000000
--- a/lib/irb/cmd/show_source.rb
+++ /dev/null
@@ -1,96 +0,0 @@
-# frozen_string_literal: true
-
-require_relative "nop"
-require_relative "../color"
-require_relative "../ruby-lex"
-
-# :stopdoc:
-module IRB
-  module ExtendCommand
-    class ShowSource < Nop
-      def execute(str = nil)
-        unless str.is_a?(String)
-          puts "Error: Expected a string but got #{str.inspect}"
-          return
-        end
-        source = find_source(str)
-        if source && File.exist?(source.file)
-          show_source(source)
-        else
-          puts "Error: Couldn't locate a definition for #{str}"
-        end
-        nil
-      end
-
-      private
-
-      # @param [IRB::ExtendCommand::ShowSource::Source] source
-      def show_source(source)
-        puts
-        puts "#{bold("From")}: #{source.file}:#{source.first_line}"
-        puts
-        code = IRB::Color.colorize_code(File.read(source.file))
-        puts code.lines[(source.first_line - 1)...source.last_line].join
-        puts
-      end
-
-      def find_source(str)
-        case str
-        when /\A[A-Z]\w*(::[A-Z]\w*)*\z/ # Const::Name
-          eval(str, irb_context.workspace.binding) # trigger autoload
-          base = irb_context.workspace.binding.receiver.yield_self { |r| r.is_a?(Module) ? r : Object }
-          file, line = base.const_source_location(str) if base.respond_to?(:const_source_location) # Ruby 2.7+
-        when /\A(?<owner>[A-Z]\w*(::[A-Z]\w*)*)#(?<method>[^ :.]+)\z/ # Class#method
-          owner = eval(Regexp.last_match[:owner], irb_context.workspace.binding)
-          method = Regexp.last_match[:method]
-          if owner.respond_to?(:instance_method) && owner.instance_methods.include?(method.to_sym)
-            file, line = owner.instance_method(method).source_location
-          end
-        when /\A((?<receiver>.+)(\.|::))?(?<method>[^ :.]+)\z/ # method, receiver.method, receiver::method
-          receiver = eval(Regexp.last_match[:receiver] || 'self', irb_context.workspace.binding)
-          method = Regexp.last_match[:method]
-          file, line = receiver.method(method).source_location if receiver.respond_to?(method)
-        end
-        if file && line
-          Source.new(file: file, first_line: line, last_line: find_end(file, line))
-        end
-      end
-
-      def find_end(file, first_line)
-        return first_line unless File.exist?(file)
-        lex = RubyLex.new
-        lines = File.read(file).lines[(first_line - 1)..-1]
-        tokens = RubyLex.ripper_lex_without_warning(lines.join)
-
-        code = +""
-        prev_tokens = []
-
-        # chunk with line number
-        tokens.chunk { |tok| tok[0][0] }.each do |lnum, chunk|
-          code << lines[lnum]
-          prev_tokens.concat chunk
-
-          continue = lex.process_continue(prev_tokens)
-          code_block_open = lex.check_code_block(code, prev_tokens)
-          if !continue && !code_block_open
-            return first_line + lnum
-          end
-        end
-        first_line
-      end
-
-      def bold(str)
-        Color.colorize(str, [:BOLD])
-      end
-
-      Source = Struct.new(
-        :file,       # @param [String] - file name
-        :first_line, # @param [String] - first line
-        :last_line,  # @param [String] - last line
-        keyword_init: true,
-      )
-      private_constant :Source
-    end
-  end
-end
-# :startdoc: