module ErrorHighlight::CoreExt - Documentation for Ruby 4.0
Description: Documentation for the ErrorHighlight::CoreExt module
Keywords: ruby,module,ErrorHighlight::CoreExt

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# module ErrorHighlight::CoreExt

### Constants

SKIP_TO_S_FOR_SUPER_LOOKUP

  This is a marker to let ‘DidYouMean::Correctable#original_message` skip the following method definition of `to_s`. See github.com/ruby/did_you_mean/pull/152

### Public Instance Methods

detailed_message (highlight: false, error_highlight: true, **)
Source

    # File lib/error_highlight/core_ext.rb, line 41
    def detailed_message(highlight: false, error_highlight: true, **)
      return super unless error_highlight
      snippet = generate_snippet
      if highlight
        snippet = snippet.gsub(/.+/) { "\e[1m" + $& + "\e[m" }
      end
      super + snippet
    end

Calls superclass method
to_s ()
Source

    # File lib/error_highlight/core_ext.rb, line 56
    def to_s
      msg = super
      snippet = generate_snippet
      if snippet != "" && !msg.include?(snippet)
        msg + snippet
      else
        msg
      end
    end

Calls superclass method

### Private Instance Methods

generate_snippet ()
Source

    # File lib/error_highlight/core_ext.rb, line 5
            def generate_snippet
      if ArgumentError === self && message =~ /\A(?:wrong number of arguments|missing keyword[s]?|unknown keyword[s]?|no keywords accepted)\b/
        locs = self.backtrace_locations
        return "" if locs.size < 2
        callee_loc, caller_loc = locs
        callee_spot = ErrorHighlight.spot(self, backtrace_location: callee_loc, point_type: :name)
        caller_spot = ErrorHighlight.spot(self, backtrace_location: caller_loc, point_type: :name)
        if caller_spot && callee_spot &&
            caller_loc.path == callee_loc.path &&
            caller_loc.lineno == callee_loc.lineno &&
            caller_spot == callee_spot
          callee_loc = callee_spot = nil
        end
        ret = +"\n"
        [["caller", caller_loc, caller_spot], ["callee", callee_loc, callee_spot]].each do |header, loc, spot|
          out = nil
          if loc
            out = "    #{ header }: #{ loc.path }:#{ loc.lineno }"
            if spot
              _, _, snippet, highlight = ErrorHighlight.formatter.message_for(spot).lines
              out += "\n    | #{ snippet }      #{ highlight }"
            else
              # do nothing
            end
          end
          ret << "\n" + out if out
        end
        ret
      else
        spot = ErrorHighlight.spot(self)
        return "" unless spot
        return ErrorHighlight.formatter.message_for(spot)
      end
    end