From: "alexeymuranov (Alexey Muranov)" <redmine@...>
Date: 2012-08-15T02:07:00+09:00
Subject: [ruby-core:47190] [ruby-trunk - Feature #6868] Make `do` in block syntax optional when the block is the last argument of a method and is not an optional argument


Issue #6868 has been updated by alexeymuranov (Alexey Muranov).


I have just realized that parameters are parsed before looking up the method definition, so maybe this is not possible...

I was just thinking if it is possible to unify somehow all Ruby objects and classes.  (No matter how hard `Class` pretends to be a simple object, it is clear that it is not only not a simple object, but not even a simple class, it cannot be subclassed for example.)
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Feature #6868: Make `do` in block syntax optional when the block is the last argument of a method and is not an optional argument
https://bugs.ruby-lang.org/issues/6868#change-28869

Author: alexeymuranov (Alexey Muranov)
Status: Open
Priority: Low
Assignee: 
Category: core
Target version: 3.0


=begin
I propose to make the use of "(({do}))" in block syntax optional if the block is the last argument of a method and if it is a required argument, at least if the block does not take parameters.  (I think this would be in line with how for example the last hash argument is treated.)  I also think that this syntactic change may allow in future versions of Ruby to make (({def})), (({class})), (({module})) methods instead of keywords.

Something like:

 3.time
   puts "Hi!"
 end

instead of

 3.time do
   puts "Hi!"
 end

I know this is not a good example, because for (({#times})) the block argument is optional.
=end



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