Class: AppMap::Event::MethodEvent

Inherits:
MethodEventStruct show all
Defined in:
lib/appmap/event.rb

Constant Summary collapse

LIMIT = 
100

Instance Attribute Summary

Attributes inherited from MethodEventStruct

#defined_class, #event, #id, #lineno, #method_id, #path, #static, #thread_id

Class Method Summary collapse

Class Method Details

.build_from_invocation(me, event_type, defined_class, method) ⇒ Object 



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# File 'lib/appmap/event.rb', line 24

def build_from_invocation(me, event_type, defined_class, method)
  singleton = method.owner.singleton_class?

  me.id = AppMap::Event.next_id_counter
  me.event = event_type
  me.defined_class = defined_class
  me.method_id = method.name.to_s
  path = method.source_location[0]
  path = path[Dir.pwd.length + 1..-1] if path.index(Dir.pwd) == 0
  me.path = path
  me.lineno = method.source_location[1]
  me.static = singleton
  me.thread_id = Thread.current.object_id
end

.display_string(value) ⇒ Object

Gets a display string for a value. This is not meant to be a machine deserializable value.



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# File 'lib/appmap/event.rb', line 40

def display_string(value)
  return nil unless value

  last_resort_string = lambda do
    warn "AppMap encountered an error inspecting a #{value.class.name}: #{$!.message}"
    '*Error inspecting variable*'
  end

  value_string = \
    begin
      value.to_s
    rescue NoMethodError
      begin
        value.inspect
      rescue StandardError
        last_resort_string.call
      end
    rescue StandardError
      last_resort_string.call
    end

  (value_string||'')[0...LIMIT].encode('utf-8', invalid: :replace, undef: :replace, replace: '_')
end