Feature #4007

numeric literal syntax sugar

Added by Ondrej Bilka almost 5 years ago. Updated almost 3 years ago.

[ruby-core:32971]
Status:Assigned
Priority:Normal
Assignee:Yukihiro Matsumoto

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

History

#1 Updated by Marcus Rückert almost 5 years ago

=begin
On 2010-10-30 22:25:20 +0900, Ondrej Bilka wrote:

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

activesupport already gives us stuff like
Time.now + 2.hours

is typing the dot really that much extra work for you?

 darix

--
openSUSE - SUSE Linux is my linux
openSUSE is good for you
www.opensuse.org

=end

#2 Updated by Ondrej Bilka almost 5 years ago

=begin
On Sat, Oct 30, 2010 at 10:37:16PM +0900, Marcus Rueckert wrote:

On 2010-10-30 22:25:20 +0900, Ondrej Bilka wrote:

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

activesupport already gives us stuff like
Time.now + 2.hours

is typing the dot really that much extra work for you?
Its matter whats more elegant.

darix

       openSUSE - SUSE Linux is my linux
           openSUSE is good for you
               www.opensuse.org

--

CPU needs recalibration

=end

#3 Updated by Yui NARUSE almost 5 years ago

  • Status changed from Open to Assigned
  • Assignee set to Yukihiro Matsumoto

=begin

=end

#4 Updated by Yutaka HARA almost 3 years ago

  • Description updated (diff)
  • Target version changed from 2.0.0 to Next Major

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