I was going through the class -
http://yard.ruby-doc.org/core-2.0/TracePoint.html
trace = TracePoint.new(:raise) do |tp|
p [tp.lineno, tp.event, tp.raised_exception]
end
trace.enable # => false
“aaa”.flatten
~> -:5:in <main>': undefined method flatten’ for “aaa”:String
(NoMethodError)
>> [4, :raise, #<TypeError: no implicit conversion of Symbol into
String>]
>> [5, :raise, #<NoMethodError: undefined method `flatten’ for
“aaa”:String>]
But do not understand what are the purposes of other documented events
like :
:line,:class,:return,:call etc.
Any example will be much appreciated.
Thanks in advance.