* eval.c (ev_const_defined, ev_const_get), variable.c

(rb_const_get_at, rb_const_get, rb_mod_remove_const): use Qundef
  as autoload marker.  [ruby-dev:18103], [ruby-dev:18184]

* eval.c (rb_mod_autoload, rb_mod_autoload_p): new method;
  Module#autoload, Module#autoload?.

* variable.c (rb_autoload, rb_autoload_load, rb_autoload_p):
  manage autoload constants per classes/modules.

* variable.c (rb_const_defined_at, rb_const_defined): return false
  for autoloading constants.

* class.c (rb_define_class, rb_define_module), eval.c (rb_eval),
  variable.c (rb_mod_const_at, rb_const_assign): removed autoload
  stuff.

* intern.h: prototypes; rb_autoload, rb_autoload_load,
  rb_autoload_p.

* lib/optparse.rb (OptionParser::Switch::PlacedArgument::parse):
  do not treat unmatched argument as an option.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3874 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/optparse.rb

@@ -223,7 +223,7 @@ Individual switch class.
     def parse(arg, *val)
       if block
 	val = conv.call(*val) if conv
-	return arg, block, val
+	return arg, block, *val
       else
 	return arg, nil
       end
@@ -343,11 +343,17 @@ Switch that can omit argument.
 
     class PlacedArgument < self
       def parse(arg, argv, &error)
-	unless arg
-	  return nil, block, nil if argv.empty? or /\A-/ =~ argv[0]
-	  arg = argv.shift
+	if !(val = arg) and (argv.empty? or /\A-/ =~ (val = argv[0]))
+	  return nil, block, nil
 	end
-	super(*parse_arg(arg, &error))
+        if (val = parse_arg(val, &error))[1]
+          arg = nil
+        else
+          val[0] = arg
+        end
+        *val = super(*val)
+        argv.shift unless arg
+        val
       end
     end
   end
@@ -1116,8 +1122,8 @@ Default options, which never appear in option summary.
 	    raise $!.set_option(arg, true)
 	  end
 	  begin
-	    opt, sw, val = sw.parse(rest, argv) {|*exc| raise(*exc)}
-	    sw.call(val) if sw
+	    opt, sw, *val = sw.parse(rest, argv) {|*exc| raise(*exc)}
+	    sw.call(*val) if sw
 	  rescue ParseError
 	    raise $!.set_option(arg, rest)
 	  end
@@ -1143,10 +1149,10 @@ Default options, which never appear in option summary.
 	    raise $!.set_option(arg, true)
 	  end
 	  begin
-	    opt, sw, val = sw.parse(val, argv) {|*exc| raise(*exc) if eq}
+	    opt, sw, *val = sw.parse(val, argv) {|*exc| raise(*exc) if eq}
 	    raise InvalidOption, arg if has_arg and !eq and arg == "-#{opt}"
 	    argv.unshift(opt) if opt and (opt = opt.sub(/\A-*/, '-')) != '-'
-	    sw.call(val) if sw
+	    sw.call(*val) if sw
 	  rescue ParseError
 	    raise $!.set_option(arg, has_arg)
 	  end