Module: Kantox::Chronoscope::ClassMethods

Included in:
Kantox::Chronoscope
Defined in:
lib/kantox/chronoscope.rb

Overview

rubocop:disable Metrics/CyclomaticComplexity rubocop:disable Metrics/PerceivedComplexity rubocop:disable Metrics/AbcSize rubocop:disable Metrics/MethodLength

Instance Method Summary collapse

Instance Method Details

#attach(klazz, *methods, cms: nil) ⇒ Object

TODO: Permit monitoring of private methods ‘methods` parameter accepts:

none for all instance methods
:method for explicit method



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# File 'lib/kantox/chronoscope.rb', line 50

def attach(klazz, *methods, cms: nil)
  klazz = Kernel.const_get(klazz) unless klazz.is_a?(Class)
  methods = klazz.instance_methods(false) if methods.empty?
  do_log = !option(ENV, 'options.silent')

  methods.each do |m|
    next if m.to_s =~ /\A#{CHAIN_PREFIX}/ # skip wrappers
    next if methods.include?("#{CHAIN_PREFIX}#{m}".to_sym) # skip already wrapped functions
    next if (klazz.instance_method(m).parameters.to_h[:block] rescue false) # FIXME: report

    receiver, arg_string = (m.to_s =~ /[^\p{L}?]\z/) ? ['self.', 'arg'] : [nil, '*args'] # to satisfy setter

    klazz.class_eval %Q|
      alias_method :'#{CHAIN_PREFIX}#{m}', :'#{m}'
      def #{m}(#{arg_string})
        ⌚('#{klazz}##{m}', #{do_log}) { #{receiver}#{CHAIN_PREFIX}#{m} #{arg_string} }
      end
    |
  end

  # class methods now
  return unless cms
  cms = [*cms]
  cms = klazz.methods(false) if cms.empty?
  cms.each do |m|
    next if m.to_s =~ /\A#{CHAIN_PREFIX}/ # skip wrappers
    next if methods.include?("#{CHAIN_PREFIX}#{m}".to_sym) # skip already wrapped functions
    next if (klazz.instance_method(m).parameters.to_h[:block] rescue false) # FIXME: report

    klazz.class_eval %Q|
      class << self
        alias_method :'#{CHAIN_PREFIX}#{m}', :'#{m}'
        def #{m}(*args)
          ⌚('#{klazz}::#{m}', #{do_log}) { #{klazz}.#{CHAIN_PREFIX}#{m} *args }
        end
      end
    |
  end

rescue NameError => e
  Generic::LOGGER.debug [
    "  #{Generic::COLOR_WARN}[#{Generic::LOGGER_TAG}] ERROR#{Generic::COLOR_NONE} #{Generic::BM_DELIMITER} “#{Generic::COLOR_WARN}#{e.message}#{Generic::COLOR_NONE}”",
    e.backtrace.map { |s| "#{Generic::COLOR_WARN}#{s}#{Generic::COLOR_NONE}" }
  ].join("#{$/}⮩\t")
end