class Tailor::Rulers::SpacesBeforeRbraceRuler
Checks for spaces before a +}+ as given by +@config+. It skips checking when:
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it's the first char in the line.
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it's the first char in the line, preceded by spaces.
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it's directly preceded by a +{+.
Public Class Methods
Tailor::Ruler::new
# File lib/tailor/rulers/spaces_before_rbrace_ruler.rb, line 11 def initialize(config, options) super(config, options) add_lexer_observers :embexpr_beg, :lbrace, :rbrace @lbrace_nesting = [] @embexpr_nesting = [] end
Public Instance Methods
@param [LexedLine] lexed_line @param [Fixnum] column @return [Fixnum] the number of spaces before the rbrace.
# File lib/tailor/rulers/spaces_before_rbrace_ruler.rb, line 21 def count_spaces(lexed_line, column) current_index = lexed_line.event_index(column) log "Current event index: #{current_index}" previous_event = lexed_line.at(current_index - 1) log "Previous event: #{previous_event}" if column.zero? || previous_event.nil? log 'rbrace is at the beginning of the line.' @do_measurement = false return 0 end if previous_event[1] == :on_lbrace log "rbrace comes after a '{'" @do_measurement = false return 0 end return 0 if previous_event[1] != :on_sp if current_index - 2 < 0 log 'rbrace is at the beginning of an indented line. Moving on.' @do_measurement = false return previous_event.last.size end previous_event.last.size end
# File lib/tailor/rulers/spaces_before_rbrace_ruler.rb, line 50 def embexpr_beg_update(_, _, _) if RUBY_VERSION < '2.0.0' @lbrace_nesting << :embexpr_beg end end
# File lib/tailor/rulers/spaces_before_rbrace_ruler.rb, line 56 def lbrace_update(_, _, _) @lbrace_nesting << :lbrace end
Checks to see if the number of spaces before an rbrace equals the value at +@config+.
@param [Fixnum] actual_spaces The number of spaces after the rbrace. @param [Fixnum] lineno Line the problem was found on. @param [Fixnum] column Column the problem was found on.
# File lib/tailor/rulers/spaces_before_rbrace_ruler.rb, line 66 def measure(actual_spaces, lineno, column) if actual_spaces != @config msg = "Line has #{actual_spaces} space(s) before a }, " msg << "but should have #{@config}." @problems << Problem.new(problem_type, lineno, column, msg, @options[:level]) end end
For Ruby versions < 2.0.0-p0, this has to keep track of +{+'s and only follow through with the check if the +{+ was an lbrace because Ripper doesn't scan the +}+ of an embedded expression (embexpr_end) as such.
@param [Tailor::LexedLine] lexed_line @param [Fixnum] lineno @param [Fixnum] column
# File lib/tailor/rulers/spaces_before_rbrace_ruler.rb, line 83 def rbrace_update(lexed_line, lineno, column) if RUBY_VERSION < '2.0.0' && @lbrace_nesting.last == :embexpr_beg @lbrace_nesting.pop return end @lbrace_nesting.pop count = count_spaces(lexed_line, column) log "Found #{count} space(s) before rbrace." if !@do_measurement log 'Skipping measurement.' else measure(count, lineno, column) end @do_measurement = true end