weird behavior : string interpolation in return statement of next / break

[MathieuDerelle]

using this snippet of code

a = 5
4.times.map do
  a = 3
  # next a
  next "#{a}"
end

in string interpolation, the variable a get the value of outside block 5 instead of 3
without string interpolation or using .to_s, it keeps the value 3

➜  ~ pry
[1] pry(main)> 
[2] pry(main)> a = 5
=> 5
[3] pry(main)> 4.times.map do
[3] pry(main)*   a = 3  
[3] pry(main)*   # next a  
[3] pry(main)*   next "#{a}"  
[3] pry(main)* end  
=> ["5", "5", "5", "5"]
➜  ~ irb
2.2.5 :001 > 
2.2.5 :002 >   a = 5
 => 5 
2.2.5 :003 > 4.times.map do
2.2.5 :004 >       a = 3
2.2.5 :005?>     # next a
2.2.5 :006 >       next "#{a}"
2.2.5 :007?>   end
 => ["3", "3", "3", "3"] 
2.2.5 :008 > quit

Versions used :

➜  ~ pry -v
Pry version 0.11.3 on Ruby 2.2.5
➜  ~ irb -v
irb 0.9.6(09/06/30)

[banister]

I can't reproduce this incorrect behaviour on 2.2.5 and Pry:

[1] pry(main)> RUBY_VERSION
=> "2.2.5"
[2] pry(main)> a = 5
=> 5
[3] pry(main)> 4.times.map do
[3] pry(main)*   a = 3
[3] pry(main)*   next "#{a}"
[3] pry(main)* end
=> ["3", "3", "3", "3"]
[4] pry(main)>

[banister]

What other Pry plugins are you running?

[MathieuDerelle]

pry-rails and pry-debug

from Gemfile.lock :

    pry (0.11.3)
      coderay (~> 1.1.0)
      method_source (~> 0.9.0)
    pry-byebug (3.5.0)
      byebug (~> 9.1)
      pry (~> 0.10)
    pry-rails (0.3.6)
      pry (>= 0.10.4)

[banister]

It's possibly due to pry-byebug which overrides the next keyword. Try uninstalling pry-byebug and do it again :)

[MathieuDerelle]

good idea. Everything was normal without pry-byebug

I've send them the issue