2 files changed, 26 insertions, 24 deletions
diff --git a/lib/forwardable/forwardable.gemspec b/lib/forwardable/forwardable.gemspec
new file mode 100644
index 0000000000..1b539bcfcb
--- /dev/null
+++ b/lib/forwardable/forwardable.gemspec
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+name = File.basename(__FILE__, ".gemspec")
+version = ["lib", Array.new(name.count("-")+1, "..").join("/")].find do |dir|
+  break File.foreach(File.join(__dir__, dir, "#{name.tr('-', '/')}.rb")) do |line|
+    /^\s*VERSION\s*=\s*"(.*)"/ =~ line and break $1
+  end rescue nil
+end
+
+Gem::Specification.new do |spec|
+  spec.name          = name
+  spec.version       = version
+  spec.authors       = ["Keiju ISHITSUKA"]
+  spec.email         = ["keiju@ruby-lang.org"]
+
+  spec.summary       = %q{Provides delegation of specified methods to a designated object.}
+  spec.description   = %q{Provides delegation of specified methods to a designated object.}
+  spec.homepage      = "https://github.com/ruby/forwardable"
+  spec.licenses      = ["Ruby", "BSD-2-Clause"]
+
+  spec.required_ruby_version = '>= 2.4.0'
+  spec.files         = ["forwardable.gemspec", "lib/forwardable.rb"]
+  spec.bindir        = "exe"
+  spec.executables   = []
+  spec.require_paths = ["lib"]
+end
diff --git a/lib/forwardable/impl.rb b/lib/forwardable/impl.rb
deleted file mode 100644
index 220d25aa95..0000000000
--- a/lib/forwardable/impl.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-# :stopdoc:
-module Forwardable
-  FILE_REGEXP = %r"#{Regexp.quote(File.dirname(__FILE__))}"
-  FILTER_EXCEPTION = <<-'END'
-
-        rescue ::Exception
-          $@.delete_if {|s| ::Forwardable::FILE_REGEXP =~ s} unless ::Forwardable::debug
-          ::Kernel::raise
-  END
-
-  def self._valid_method?(method)
-    catch {|tag|
-      eval("BEGIN{throw tag}; ().#{method}", binding, __FILE__, __LINE__)
-    }
-  rescue SyntaxError
-    false
-  else
-    true
-  end
-
-  def self._compile_method(src, file, line)
-    eval(src, nil, file, line)
-  end
-end