Quoted symbols are not accepted as hash keys using new syntax

[dabroz]

Following Ruby code:

puts({'1': 1})

is correctly handled by CRuby (ruby 2.3.1p112 (2016-04-26 revision 54768) [x86_64-darwin15]):

{:"1"=>1}

but doesn't work with mruby (latest from master, 9a126278):

./test.rb:1:10: syntax error, unexpected ':', expecting tASSOC

Old syntax ({:'1' => 1}) works correctly in mruby.

[cremno]

That's a 2.2 feature. mruby targets 1.9 syntax including bug fixes. I don't oppose implementing it though.

[matz]

mruby gradually adopting 2.x features. It's a good chance to add quoted labels.

[ksss]

I found this case.

$ mirb
> {"1": 1}
 => {:"1"=>1}
> {'1': 1}
line 2: syntax error, unexpected tLABEL_END, expecting '}'

$ irb
irb(main):001:0> {"1": 1}
=> {:"1"=>1}
irb(main):002:0> {'1': 1}
=> {:"1"=>1}

[ksss]

Thank you for fixing ✨