require_relative "formatter" module ErrorHighlight module CoreExt # This is a marker to let `DidYouMean::Correctable#original_message` skip # the following method definition of `to_s`. # See https://github.com/ruby/did_you_mean/pull/152 SKIP_TO_S_FOR_SUPER_LOOKUP = true private_constant :SKIP_TO_S_FOR_SUPER_LOOKUP def to_s msg = super.dup locs = backtrace_locations return msg unless locs loc = locs.first begin node = RubyVM::AbstractSyntaxTree.of(loc, keep_script_lines: true) opts = {} case self when NoMethodError, NameError opts[:point_type] = :name opts[:name] = name when TypeError, ArgumentError opts[:point_type] = :args end spot = ErrorHighlight.spot(node, **opts) rescue SyntaxError rescue SystemCallError # file not found or something rescue ArgumentError # eval'ed code end if spot points = ErrorHighlight.formatter.message_for(spot) msg << points if !msg.include?(points) end msg end end NameError.prepend(CoreExt) # The extension for TypeError/ArgumentError is temporarily disabled due to many test failures #TypeError.prepend(CoreExt) #ArgumentError.prepend(CoreExt) end