ruby - Dynamic Class Definition WITH a Class Name -

how dynamically define class in ruby name?

i know how create class dynamically without name using like:

dynamic_class = class.new   def method1   end end 

but can't specify class name. want create class dynamically with name.

here's example of want of course doesn't work.
(note not creating instance of class class definition)

class testeval   def method1     puts "name: #{self.name}"   end end  class_name = "testeval" dummy = eval("#{class_name}")  puts "dummy: #{dummy}"  dynamic_name = "testeval2" class_string = """ class #{dynamic_name}   def method1   end end """ dummy2 = eval(class_string) puts "dummy2: #{dummy2}" # doesn't work 

actual output:

dummy: testeval dummy2:  

desired output:

dummy: testeval dummy2: testeval2 

======================================================

answer: totally dynamic solution using sepp2k's method

dynamic_name = "testeval2"  object.const_set(dynamic_name, class.new) dummy2 = eval("#{dynamic_name}") puts "dummy2: #{dummy2}" 

the name of class name of first constant refers it.

i.e. if myclass = class.new , myclass = myclass, name of class become myclass. can't myclass = if don't know name of class until runtime.

so instead can use module#const_set, dynamically sets value of const. example:

dynamic_name = "classname" object.const_set(dynamic_name, class.new { def method1() 42 end }) classname.new.method1 #=> 42