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Feature #4007

closed

numeric literal syntax sugar

Feature #4007: numeric literal syntax sugar

Added by neleai (Ondrej Bilka) about 15 years ago. Updated almost 8 years ago.

Status:
Rejected
Assignee:
matz (Yukihiro Matsumoto)
Target version:
3.0
[ruby-core:32971]

Description

=begin
Hello
As I looked to C++ extension suffing numeric literals.
My proposal is make . in method call of numeric literal optional so we can for example write
4i instead 4.i
Another application is making Time manipulations more readable like
deadline=Time.now + 2hours

Here is patch
It should be more restrictive to disallow traps like 0xadup
Index: parse.y

--- parse.y (revision 29647)
+++ parse.y (working copy)
@@ -3592,6 +3592,16 @@
$$ = method_arg(dispatch1(fcall, $1), $2);
%*/
}

  •  | numeric tIDENTIFIER opt_paren_args 
  •  { 
  •  /*%%%*/ 
  • 	$$ = NEW_CALL($1, $2, $3); 
  • 	fixpos($$, $1); 
  •  /*% 
  • 	$$ = dispatch3(call, $1, ripper_id2sym('.'), $2); 
  • 	$$ = method_optarg($$, $3); 
  •  %*/ 
  •  } | primary_value '.' operation2 opt_paren_args { /*%%%*/

=end

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