1 files changed, 58 insertions, 0 deletions
diff --git a/vendor/bundle/ruby/3.4.0/gems/eventmachine-1.2.7/lib/em/callback.rb b/vendor/bundle/ruby/3.4.0/gems/eventmachine-1.2.7/lib/em/callback.rb
new file mode 100644
index 0000000..4928feb
--- /dev/null
+++ b/vendor/bundle/ruby/3.4.0/gems/eventmachine-1.2.7/lib/em/callback.rb
@@ -0,0 +1,58 @@
+module EventMachine
+  # Utility method for coercing arguments to an object that responds to :call.
+  # Accepts an object and a method name to send to, or a block, or an object
+  # that responds to :call.
+  #
+  # @example EventMachine.Callback used with a block. Returns that block.
+  #
+  #  cb = EventMachine.Callback do |msg|
+  #    puts(msg)
+  #  end
+  #  # returned object is a callable
+  #  cb.call('hello world')
+  #
+  #
+  # @example EventMachine.Callback used with an object (to be more specific, class object) and a method name, returns an object that responds to #call
+  #
+  #  cb = EventMachine.Callback(Object, :puts)
+  #  # returned object is a callable that delegates to Kernel#puts (in this case Object.puts)
+  #  cb.call('hello world')
+  #
+  #
+  # @example EventMachine.Callback used with an object that responds to #call. Returns the argument.
+  #
+  #  cb = EventMachine.Callback(proc{ |msg| puts(msg) })
+  #  # returned object is a callable
+  #  cb.call('hello world')
+  #
+  #
+  # @overload Callback(object, method)
+  #   Wraps `method` invocation on `object` into an object that responds to #call that proxies all the arguments to that method
+  #   @param [Object] Object to invoke method on
+  #   @param [Symbol] Method name
+  #   @return [<#call>] An object that responds to #call that takes any number of arguments and invokes method on object with those arguments
+  #
+  # @overload Callback(object)
+  #   Returns callable object as is, without any coercion
+  #   @param [<#call>] An object that responds to #call
+  #   @return [<#call>] Its argument
+  #
+  # @overload Callback(&block)
+  #   Returns block passed to it without any coercion
+  #   @return [<#call>] Block passed to this method
+  #
+  # @raise [ArgumentError] When argument doesn't respond to #call, method name is missing or when invoked without arguments and block isn't given
+  #
+  # @return [<#call>]
+  def self.Callback(object = nil, method = nil, &blk)
+    if object && method
+      lambda { |*args| object.__send__ method, *args }
+    else
+      if object.respond_to? :call
+        object
+      else
+        blk || raise(ArgumentError)
+      end # if
+    end # if
+  end # self.Callback
+end # EventMachine