This cop checks for multiple expressions placed on the same line. It also checks for lines terminated with a semicolon.
# File lib/rubocop/cop/style/semicolon.rb, line 10 def investigate(processed_source) return unless processed_source.ast @processed_source = processed_source check_for_line_terminator end
# File lib/rubocop/cop/style/semicolon.rb, line 17 def on_begin(node) return if cop_config['AllowAsExpressionSeparator'] exprs = node.children return if exprs.size < 2 # create a map matching lines to the number of expressions on them exprs_lines = exprs.map { |e| e.loc.expression.line } lines = exprs_lines.group_by { |i| i } # every line with more than 1 expression on it is an offense lines.each do |line, expr_on_line| next unless expr_on_line.size > 1 # TODO: Find the correct position of the semicolon. We don't know # if the first semicolon on the line is a separator of # expressions. It's just a guess. column = @processed_source[line - 1].index(';') convention_on(line, column, !:last_on_line) end end
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