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

[MathieuDerelle]

pry-byebug seems to alter next/break behaviors

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"] 

Versions used :

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

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)

(originally posted on pry : pry/pry#1717)

[hegwin]

Another issue for break with a parameter:

In pry:

[1] pry(main)> a = [1,2,3]
=> [1, 2, 3]
[2] pry(main)> a.each do |num|
[2] pry(main)*   break num if num > 2
[2] pry(main)*   p num
[2] pry(main)* end  
1
2
=> 3

In pry-byebug:

[1] pry(main)> a = [1,2,3]
=> [1, 2, 3]
[2] pry(main)> a.each do |num|
[2] pry(main)*   break num if num > 2 
ArgumentError: Cannot identify arguments as breakpoint
from /Users/hegwin/.rvm/gems/ruby-2.5.3/gems/pry-byebug-3.0.1/lib/pry/commands/breakpoint.rb:114:in `new_breakpoint'
[2] pry(main)*   p num
[2] pry(main)* end  
1
2
3
=> [1, 2, 3]