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Support Ruby 3.1 hash shorthand syntax #55

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presidentbeef wants to merge 1 commit into from
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Support Ruby 3.1 hash shorthand syntax #55

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7 changes: 7 additions & 0 deletions lib/ruby2ruby.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -544,6 +544,13 @@ def process_hash(exp) # :nodoc:
result = pairs.each_slice(2).map { |k, v|
if k.sexp_type == :kwsplat then
"%s" % process(k)
elsif v.nil?
# Shorthand hash syntax
unless k.sexp_type == :lit and k.value.is_a? Symbol
raise "Expected symbol for hash key, but got #{k.inspect}"
end

"#{k.value}:"
else
t = v.sexp_type

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8 changes: 8 additions & 0 deletions test/test_ruby2ruby.rb
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Expand Up @@ -118,6 +118,14 @@ def test_hash_parens_iter
assert_parse inn, out
end

def test_hash_shorthand_invalid_key_type
inn = s(:hash, s(:str, 'k'), nil)
out = '{ k: }'
assert_raises do
assert_parse inn, out
end
end

def test_and_alias
inn = s(:and, s(:true), s(:alias, s(:lit, :a), s(:lit, :b)))
out = "true and (alias :a :b)"
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