class RuboCop::Cop::Layout::BlockEndNewline

}
foo(i)
blah { |i|
# good
foo(i) }
blah { |i|
# bad
end
foo(i)
blah do |i|
# good
foo(i) end
blah do |i|
# bad
@example
is on its own line.
This cop checks whether the end statement of a do..end block

def delimiter_range(node) 

def delimiter_range(node)
  Parser::Source::Range.new(
    node.loc.expression.source_buffer,
    node.children.compact.last.loc.expression.end_pos,
    node.loc.expression.end_pos
  )
end

def message(node) 

def message(node)
  format(MSG, line: node.loc.end.line, column: node.loc.end.column + 1)
end

def on_block(node) 

def on_block(node)
  return if node.single_line?
  # If the end is on its own line, there is no offense
  return if begins_its_line?(node.loc.end)
  add_offense(node.loc.end, message: message(node)) do |corrector|
    corrector.replace(delimiter_range(node), "\n#{node.loc.end.source}#{offset(node)}")
  end
end