test_syntax.rb

assert_equal %q{4}, %q{1 && 2 && 3 && 4}
assert_equal %q{}, %q{1 && nil && 3 && 4}
assert_equal %q{}, %q{1 && 2 && 3 && nil}
assert_equal %q{false}, %q{1 && 2 && 3 && false}
assert_equal %q{4}, %q{1 and 2 and 3 and 4}
assert_equal %q{}, %q{1 and nil and 3 and 4}
assert_equal %q{}, %q{1 and 2 and 3 and nil}
assert_equal %q{false}, %q{1 and 2 and 3 and false}
assert_equal %q{}, %q{nil && true}
assert_equal %q{false}, %q{false && true}
assert_equal %q{}, %q{
  case 1
  when 2
    :ng
  end}
assert_equal %q{ok}, %q{
  case 1
  when 10,20,30
    :ng1
  when 1,2,3
    :ok
  when 100,200,300
    :ng2
  else
    :elseng
  end}
assert_equal %q{elseok}, %q{
  case 123
  when 10,20,30
    :ng1
  when 1,2,3
    :ng2
  when 100,200,300
    :ng3
  else
    :elseok
  end
}
assert_equal %q{ok}, %q{
  case 'test'
  when /testx/
    :ng1
  when /test/
    :ok
  when /tetxx/
    :ng2
  else
    :ng_else
  end
}
assert_equal %q{ok}, %q{
  case Object.new
  when Object
    :ok
  end
}
assert_equal %q{ok}, %q{
  case Object
  when Object.new
    :ng
  else
    :ok
  end
}
assert_equal %q{ok}, %q{
  case 'test'
  when 'tes'
    :ng
  when 'te'
    :ng
  else
    :ok
  end
}
assert_equal %q{ok}, %q{
  case 'test'
  when 'tes'
    :ng
  when 'te'
    :ng
  when 'test'
    :ok
  end
}
assert_equal %q{ng}, %q{
  case 'test'
  when 'tes'
    :ng
  when /te/
    :ng
  else
    :ok
  end
}
assert_equal %q{ok}, %q{
  case 'test'
  when 'tes'
    :ng
  when /test/
    :ok
  else
    :ng
  end
}
assert_equal %q{100}, %q{
  def test(arg)
    case 1
    when 2
      3
    end
    return arg
  end

  test(100)
}
assert_equal %q{ok}, %q{
  ary = [1, 2]
  case 1
  when *ary
    :ok
  else
    :ng
  end
}
assert_equal %q{ok}, %q{
  ary = [1, 2]
  case 3
  when *ary
    :ng
  else
    :ok
  end
}
assert_equal %q{ok}, %q{
  ary = [1, 2]
  case 1
  when :x, *ary
    :ok
  when :z
    :ng1
  else
    :ng2
  end
}
assert_equal %q{ok}, %q{
  ary = [1, 2]
  case 3
  when :x, *ary
    :ng1
  when :z
    :ng2
  else
    :ok
  end
}
assert_equal %q{[:false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :then, :false, :false, :false, :then, :false, :then, :then, :then, :false, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :false, :false, :false, :false, :false, :then, :then, :then, :then, :then, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :then, :then, :false, :false, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :false, :then, :then, :false, :false, :then, :then, :then, :then, :then, :then, :then, :then, :then, :then, :false, :then, :then, :then, :false, :then, :then, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :false, :false, :false, :false, :false, :false, :false, :false, :false, :then, :then, :false, :false, :then, :then, :false, :false, :false, :then, :false, :false, :false, :then, :false, :then, :then, :then, :false, :then, :then, :then, :then, :then, :then, :then, :then, :then, 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:sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep, :then, :sep]}, %q{

  def make_perm ary, num
    if num == 1
      ary.map{|e| [e]}
    else
      base = make_perm(ary, num-1)
      res  = []
      base.each{|b|
        ary.each{|e|
          res << [e] + b
        }
      }
      res
    end
  end

  def each_test
    conds = make_perm(['fv', 'tv'], 3)
    bangs = make_perm(['', '!'], 3)
    exprs = make_perm(['and', 'or'], 3)
    ['if', 'unless'].each{|syn|
      conds.each{|cs|
        bangs.each{|bs|
          exprs.each{|es|
            yield(syn, cs, bs, es)
          }
        }
      }
    }
  end

  fv = false
  tv = true

  $ans = []
  each_test{|syn, conds, bangs, exprs|
    c1, c2, c3 = conds
    bang1, bang2, bang3 = bangs
    e1, e2 = exprs
    eval %Q{
      #{syn} #{bang1}#{c1} #{e1} #{bang2}#{c2} #{e2} #{bang3}#{c3}
        $ans << :then
      else
        $ans << :false
      end
    }
  }

  each_test{|syn, conds, bangs, exprs|
    c1, c2, c3 = conds
    bang1, bang2, bang3 = bangs
    e1, e2 = exprs
    eval %Q{
      #{syn} #{bang1}#{c1} #{e1} #{bang2}#{c2} #{e2} #{bang3}#{c3}
        $ans << :then
      end
      $ans << :sep
    }
  }
  $ans
}
assert_equal %q{}, %q{
  defined?(m)
}
assert_equal %q{method}, %q{
  def m
  end
  defined?(m)
}
assert_equal %q{}, %q{
  defined?(a.class)
}
assert_equal %q{method}, %q{
  a = 1
  defined?(a.class)
}
assert_equal %q{["method", "method", "method", "method", nil, nil, "method", "method", "method", nil]}, %q{
  class C
    def test
      [defined?(m1()), defined?(self.m1), defined?(C.new.m1),
       defined?(m2()), defined?(self.m2), defined?(C.new.m2),
       defined?(m3()), defined?(self.m3), defined?(C.new.m3)]
    end
    def m1
    end
    private
    def m2
    end
    protected
    def m3
    end
  end
  C.new.test + [defined?(C.new.m3)]
}
assert_equal %q{[nil, nil, nil, nil, "global-variable", "global-variable", nil, nil]}, %q{
  $ans = [defined?($1), defined?($2), defined?($3), defined?($4)]
  /(a)(b)/ =~ 'ab'
  $ans + [defined?($1), defined?($2), defined?($3), defined?($4)]
}
assert_equal %q{nilselftruefalse}, %q{
  defined?(nil) + defined?(self) +
    defined?(true) + defined?(false)
}
assert_equal %q{}, %q{
  defined?(@a)
}
assert_equal %q{instance-variable}, %q{
  @a = 1
  defined?(@a)
}
assert_equal %q{}, %q{
  defined?(@@a)
}
assert_equal %q{class variable}, %q{
  @@a = 1
  defined?(@@a)
}
assert_equal %q{}, %q{
  defined?($a)
}
assert_equal %q{global-variable}, %q{
  $a = 1
  defined?($a)
}
assert_equal %q{}, %q{
  defined?(C_definedtest)
}
assert_equal %q{constant}, %q{
  C_definedtest = 1
  defined?(C_definedtest)
}
assert_equal %q{}, %q{
  defined?(::C_definedtest)
}
assert_equal %q{constant}, %q{
  C_definedtest = 1
  defined?(::C_definedtest)
}
assert_equal %q{}, %q{
  defined?(C_definedtestA::C_definedtestB::C_definedtestC)
}
assert_equal %q{constant}, %q{
  class C_definedtestA
    class C_definedtestB
      C_definedtestC = 1
    end
  end
  defined?(C_definedtestA::C_definedtestB::C_definedtestC)
}
assert_equal %q{30}, %q{
  sum = 0
  30.times{|ib|
    if ib % 10 == 0 .. true
      sum += ib
    end
  }
  sum
}
assert_equal %q{63}, %q{
  sum = 0
  30.times{|ib|
    if ib % 10 == 0 ... true
      sum += ib
    end
  }
  sum
}
assert_equal %q{[["NUM", "Type: NUM\n"], ["NUM", "123\n"], ["NUM", "456\n"], ["NUM", "Type: ARP\n"], ["NUM", "aaa\n"], ["NUM", "bbb\n"], ["NUM", "\f\n"], ["ARP", "Type: ARP\n"], ["ARP", "aaa\n"], ["ARP", "bbb\n"]]}, %q{
  t = nil
  unless ''.respond_to? :lines
    class String
      def lines
        self
      end
    end
  end
  ary = []
"this must not print
Type: NUM
123
456
Type: ARP
aaa
bbb
\f
this must not print
hoge
Type: ARP
aaa
bbb
".lines.each{|l|
    if (t = l[/^Type: (.*)/, 1])..(/^\f/ =~ l)
      ary << [t, l]
    end
  }
  ary
}
assert_equal %q{1}, %q{if true  then 1 ; end}
assert_equal %q{}, %q{if false then 1 ; end}
assert_equal %q{1}, %q{if true  then 1 ; else; 2; end}
assert_equal %q{2}, %q{if false then 1 ; else; 2; end}
assert_equal %q{}, %q{if true  then   ; elsif true then ; 1 ; end}
assert_equal %q{1}, %q{if false then   ; elsif true then ; 1 ; end}
assert_equal %q{}, %q{unless true  then 1 ; end}
assert_equal %q{1}, %q{unless false then 1 ; end}
assert_equal %q{2}, %q{unless true  then 1 ; else; 2; end}
assert_equal %q{1}, %q{unless false then 1 ; else; 2; end}
assert_equal %q{1}, %q{1 if true}
assert_equal %q{}, %q{1 if false}
assert_equal %q{}, %q{1 if nil}
assert_equal %q{}, %q{1 unless true}
assert_equal %q{1}, %q{1 unless false}
assert_equal %q{1}, %q{1 unless nil}
assert_equal %q{1}, %q{1 || 2 || 3 || 4}
assert_equal %q{1}, %q{1 || false || 3 || 4}
assert_equal %q{2}, %q{nil || 2 || 3 || 4}
assert_equal %q{2}, %q{false || 2 || 3 || 4}
assert_equal %q{false}, %q{nil || false || nil || false}
assert_equal %q{1}, %q{1 or 2 or 3 or 4}
assert_equal %q{1}, %q{1 or false or 3 or 4}
assert_equal %q{2}, %q{nil or 2 or 3 or 4}
assert_equal %q{2}, %q{false or 2 or 3 or 4}
assert_equal %q{false}, %q{nil or false or nil or false}
assert_equal %q{elseng}, %q{
  case
  when 1==2, 2==3
    :ng1
  when false, 4==5
    :ok
  when false
    :ng2
  else
    :elseng
  end
}
assert_equal %q{ok}, %q{
  case
  when nil, nil
    :ng1
  when 1,2,3
    :ok
  when false, false
    :ng2
  else
    :elseng
  end
}
assert_equal %q{elseok}, %q{
  case
  when nil
    :ng1
  when false
    :ng2
  else
    :elseok
  end}
assert_equal %q{}, %q{
  case
  when 1
  end
}
assert_equal %q{ok}, %q{
  r = nil
  ary = []
  case
  when false
    r = :ng1
  when false, false
    r = :ng2
  when *ary
    r = :ng3
  when false, *ary
    r = :ng4
  when true, *ary
    r = :ok
  end
  r
}
assert_equal %q{ok}, %q{
  ary = []
  case
  when false, *ary
    :ng
  else
    :ok
  end
}
assert_equal %q{ok}, %q{
  ary = [false, nil]
  case
  when *ary
    :ng
  else
    :ok
  end
}
assert_equal %q{ok}, %q{
  ary = [false, nil]
  case
  when *ary
    :ng
  when true
    :ok
  else
    :ng2
  end
}
assert_equal %q{ng}, %q{
  ary = [false, nil]
  case
  when *ary
    :ok
  else
    :ng
  end
}
assert_equal %q{ok}, %q{
  ary = [false, true]
  case
  when *ary
    :ok
  else
    :ng
  end
}
assert_equal %q{ok}, %q{
  ary = [false, true]
  case
  when false, false
  when false, *ary
    :ok
  else
    :ng
  end
}
assert_equal %q{}, %q{
  i = 0
  while i < 10
    i+=1
  end}
assert_equal %q{10}, %q{
  i = 0
  while i < 10
    i+=1
  end; i}
assert_equal %q{}, %q{
  i = 0
  until i > 10
    i+=1
  end}
assert_equal %q{11}, %q{
  i = 0
  until i > 10
    i+=1
  end; i}
assert_equal %q{1}, %q{
  i = 0
  begin
    i+=1
  end while false
  i
}
assert_equal %q{1}, %q{
  i = 0
  begin
    i+=1
  end until true
  i
}
def assert_syntax_error expected, code, message = ''
  assert_equal "#{expected}",
    "begin eval(%q{#{code}}, nil, '', 0)"'; rescue SyntaxError => e; e.message[/\A:(?:\d+:)? (.*)/, 1] end', message
end
assert_syntax_error "unterminated string meets end of file", '().."', '[ruby-dev:29732]'
assert_equal %q{[]}, %q{$&;[]}, '[ruby-dev:31068]'
assert_syntax_error "syntax error, unexpected *, expecting '}'", %q{{*0}}, '[ruby-dev:31072]'
assert_syntax_error "`@0' is not allowed as an instance variable name", %q{@0..0}, '[ruby-dev:31095]'
assert_syntax_error "identifier $00 is not valid to get", %q{$00..0}, '[ruby-dev:31100]'
assert_syntax_error "identifier $00 is not valid to set", %q{0..$00=1}
assert_equal %q{0}, %q{[*0];0}, '[ruby-dev:31102]'
assert_syntax_error "syntax error, unexpected ')'", %q{v0,(*,v1,) = 0}, '[ruby-dev:31104]'
assert_equal %q{1}, %q{
  class << (ary=[]); def []; 0; end; def []=(x); super(0,x);end;end; ary[]+=1
}, '[ruby-dev:31110]'
assert_syntax_error "Can't set variable $1", %q{0..$1=1}, '[ruby-dev:31118]'
assert_valid_syntax %q{1.times{1+(1&&next)}}, '[ruby-dev:31119]'
assert_valid_syntax %q{x=-1;loop{x+=1&&redo if (x+=1).zero?}}, '[ruby-dev:31119]'
assert_syntax_error %q{syntax error, unexpected end-of-input}, %q{!}, '[ruby-dev:31243]'
assert_equal %q{[nil]}, %q{[()]}, '[ruby-dev:31252]'
assert_equal %q{true}, %q{!_=()}, '[ruby-dev:31263]'
assert_equal 'ok', %q{while true; redo; end if 1 == 2; :ok}, '[ruby-dev:31360]'
assert_equal 'ok', %q{
  1.times {
    begin
    ensure
      next
    end
  }; :ok
}, '[ruby-dev:31373]'
assert_equal 'ok', %q{
  flag = false
  1.times {
    next if flag
    flag = true
    begin
    ensure
      redo
    end
  }; :ok
}, '[ruby-dev:31373]'

assert_equal 'ok', %q{
  1.times{
    p(1, (next; 2))
  }; :ok
}
assert_equal '3', %q{
  i = 0
  1 + (while true
         break 2 if (i+=1) > 1
         next
       end)
}
assert_equal '3', %q{
  i = 0
  1 + (while true
         break 2 if (i+=1) > 1
         p(1, (next; 2))
       end)
}
# redo
assert_equal 'ok', %q{
  i = 0
  1.times{
    break if i>1
    i+=1
    p(1, (redo; 2))
  }; :ok
}
assert_equal '3', %q{
  i = 0
  1 + (while true
         break 2 if (i+=1) > 1
         redo
       end)
}
assert_equal '3', %q{
  i = 0
  1 + (while true
         break 2 if (i+=1) > 1
         p(1, (redo; 2))
       end)
}
assert_equal '1', %q{
  a = [0]
  a[*a]+=1
}
assert_equal '2', %q{
  ary = [0]
  case 1
  when *ary, 1
    1
  end +
  case
  when *ary
    1
  end
}

assert_match /invalid multibyte char/, %q{
  STDERR.reopen(STDOUT)
  eval("\"\xf0".force_encoding("utf-8"))
}, '[ruby-dev:32429]'

# method ! and !=
assert_equal 'true', %q{!false}
assert_equal 'true', %q{1 == 1}
assert_equal 'true', %q{1 != 2}
assert_equal 'true', %q{
  class C; def !=(obj); true; end; end
  C.new != 1
}
assert_equal 'true', %q{
  class C; def !@; true; end; end
  !C.new
}
assert_normal_exit %q{
  eval "while true; return; end rescue p $!"
}, '[ruby-dev:31663]'
assert_equal '1', %q{
  def bar
    raise
  end

  def foo
    1.times{
      begin
        return bar
      rescue
        :ok
      end
    }
  end

  foo
}

assert_equal 'ok', %q{
  counter = 2
  while true
    counter -= 1
    next if counter != 0
    break
  end
  :ok
}, '[ruby-core:14385]'

assert_equal 'ok', %q{
  counter = 2
  while true
    counter -= 1
    next if counter != 0
    break :ok
  end # direct
}, '[ruby-core:14385]'

assert_equal 'ok', %q{
  counter = 2
  while true
    counter -= 1
    break if counter == 0
    "#{next}"
  end
  :ok
}, 'reported by Yusuke ENDOH'

assert_equal 'ok', %q{
  counter = 2
  while true
    counter -= 1
    break if counter == 0
    next
    redo
  end
  :ok
}, 'reported by Yusuke ENDOH'

assert_equal 'ok', %q{
  counter = 2
  while true
    counter -= 1
    break if counter == 0
    next
    "#{ redo }"
  end
  :ok
}, 'reported by Yusuke ENDOH'

assert_normal_exit %q{
  begin
    raise
  rescue
    counter = 2
    while true
      counter -= 1
      break if counter == 0
      next
      retry
    end
  end
}, 'reported by Yusuke ENDOH'

assert_normal_exit %q{
  counter = 2
  while true
    counter -= 1
    break if counter == 0
    next
    "#{ break }"
  end
}, 'reported by Yusuke ENDOH'

assert_normal_exit %q{
  counter = 2
  while true
    counter -= 1
    next if counter != 0
    "#{ break }"
  end
}, 'reported by Yusuke ENDOH'

assert_equal 'ok', %q{
  1.times do
    [
      1, 2, 3, 4, 5, 6, 7, 8,
      begin
        false ? next : p
        break while true
      end
    ]
  end
  :ok
}, '[ruby-dev:32882]'

assert_equal "1\n2\n", %q{
  i = 0
  while i<2
    i += 1
    next p(i)
  end
}

assert_valid_syntax('1.times {|i|print (42),1;}', '[ruby-list:44479]')

assert_equal 'ok', %q{
  def a() end
  begin
    if defined?(a(1).a)
      :ng
    else
      :ok
    end
  rescue
    :ng
  end
}, '[ruby-core:16010]'

assert_equal 'ok', %q{
  def a() end
  begin
    if defined?(a::B)
      :ng
    else
      :ok
    end
  rescue
    :ng
  end
}, '[ruby-core:16010]'

assert_normal_exit %q{
  defined? C && 0
}

assert_normal_exit %q{
  class C
    def m
      defined?(super())
    end
  end
  C.new.m
}

assert_equal 'ok', %q{
  class X < RuntimeError;end
  x = [X]
  begin
   raise X
  rescue *x
   :ok
  end
}, '[ruby-core:14537]'

assert_equal 'ok', %q{
  a = [false]
  (a[0] &&= true) == false ? :ok : :ng
}, '[ruby-dev:34679]'

assert_normal_exit %q{
  a = []
  100.times {|i| a << i << nil << nil }
  p a.compact!
}

assert_equal 'ok', %q{
  "#{}""#{}ok"
}, '[ruby-dev:38968]'


assert_equal 'ok', %q{
  "o" "#{}k"
}, '[ruby-dev:38980]'

bug2415 = '[ruby-core:26961]'
assert_normal_exit %q{
  0.times do
    0.times do
      def x(a=1, b, *rest); nil end
    end
  end
}, bug2415

assert_normal_exit %q{
  0.times do
    0.times do
      def x@; nil end
    end
  end
}, bug2415

assert_normal_exit %q{
  0.times do
    0.times do
      def x(a = 0.times do
              def y(a=1, b, *rest); nil; end
            end)
        nil
      end
    end
  end
}, bug2415

assert_normal_exit %q{
  0.times do
    0.times do
      def x(a = 0.times do
              def x@; nil; end
            end)
        nil
      end
    end
  end
}, bug2415

assert_normal_exit %q{
  a {
    b {|c.d| }
    e
  }
}, '[ruby-dev:39861]'

bug1240 = '[ruby-core:22637]'
assert_valid_syntax('x y { "#{}".z { } }', bug1240)
assert_valid_syntax('x y { "#{}".z do end }', bug1240)

assert_valid_syntax('y "#{a 1}" do end', '[ruby-core:29579]')
assert_normal_exit %q{
  def foo(&block)
    yield
  end

  foo do
    s = defined?(raise + 1)
    Class
  end
}, '[ruby-core:30293]'