Local variables in blocks leak their existence
Reported by manveru | May 5th, 2008 @ 11:20 AM | in 1.0 preview
I found that there is a different behaviour in rubinius for local variables assigned in a block.
# Ruby 1.8:
10.times{ bar = 1 }; bar
#=> NameError: undefined local variable or method `bar' for main:Object
# Rubinius
10.times{ bar = 1 }; bar
# nil
According to evan, the following sexp has to change.
pp "10.times { bar = 1 }; bar".to_sexp
[:block,
[:newline,
1,
"(eval)",
[:iter,
[:call, [:lit, 10], :times],
nil,
[:block,
[:dasgn_curr, :bar],
[:newline, 1, "(eval)", [:lasgn, :bar, [:lit, 1]]]]]],
[:newline, 1, "(eval)", [:lvar, :bar, 0]]]
that should read
pp "10.times { bar = 1 }; bar".to_sexp
[:block,
[:newline,
1,
"(eval)",
[:iter,
[:call, [:lit, 10], :times],
nil,
[:block,
[:dasgn_curr, :bar],
[:newline, 1, "(eval)", [:lasgn, :bar, [:lit, 1]]]]]],
[:newline, 1, "(eval)", [:vcall, :bar, 0]]]
so the :lvar on the last line becomes :vcall
Comments and changes to this ticket
-
Ryan Davis May 6th, 2008 @ 12:43 AM
- → Assigned user changed from “” to “Ryan Davis”
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