[ruby-dev:46914] [ruby-trunk - Feature #7639] More freedom for location of comments

["sawa (Tsuyoshi Sawada)" <sawadatsuyoshi@gmail•com>]

Issue #7639 has been updated by sawa (Tsuyoshi Sawada).


Indeed, method chains do seem to continue beyond empty lines. The following two work:

[1, 2, 3].

map{|x| x * 2}

[1, 2, 3].
#
map{|x| x * 2}

But the following does not, (which I claim is strange, given that the above two work):

[1, 2, 3]
#
.map{|x| x * 2}

----------------------------------------
Feature #7639: More freedom for location of comments
https://bugs.ruby-lang.org/issues/7639#change-35807

Author: sawa (Tsuyoshi Sawada)
Status: Feedback
Priority: Normal
Assignee: matz (Yukihiro Matsumoto)
Category: core
Target version: Next Major


=begin
When we chain methods with the period at the end of each line, we can put comments in between the lines:

    [1, 2, 3].
    # First, we do blah blah
    method1.
    # Second, we do blah blah
    method2.
    =begin
      Third, the following line
      does this
      and that ...
    =end
    method3

but when we have the period at the beginning of the line, putting comments in similar positions returns an error:

    [1, 2, 3]
    # First, we do blah blah
    .method1
    # Second, we do blah blah
    .method2
    =begin
      Third, the following line
      does this
      and that ...
    =end
    .method3

    # => Error

It is confusing that putting comments between lines in a method chain is sometimes allowed and sometimes not. I think it would be convenient if comments are allowed in these positions even when the following line starts with a period, and I request this as a feature. Currently, it returns an error, which means that, if such syntax were allowed, there would be no conflict with the existing syntax.

Furthermore, putting the period at the beginning of a line is suited for method chains because the period will visually work as bullets, and it makes more sense to have comments right before those lines.
=end



-- 
http://bugs.ruby-lang.org/