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parse.y: no duplicated names

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* parse.y (new_bv_gen): no duplicated names, if already added in
  shadowing_lvar().

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45846 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2014-05-06 14:29:07 +00:00
parent d750b62d66
commit b5cae3820b
3 changed files with 22 additions and 5 deletions
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6
test/ruby/test_variable.rb
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@ -89,6 +89,12 @@ class TestVariable < Test::Unit::TestCase
assert_equal([:x, :bug9486, :x], x)
end
def test_shadowing_block_local_variables
bug9486 = '[ruby-core:60501] [Bug #9486]'
x = tap {|;x| break local_variables}
assert_equal([:x, :bug9486, :x], x)
end
def local_variables_of(bind)
this_should_not_be_in_bind = 2
bind.local_variables