Contents

module Kernel
  # Sets $VERBOSE to nil for the duration of the block and back to its original
  # value afterwards.
  #
  #   silence_warnings do
  #     value = noisy_call # no warning voiced
  #   end
  #
  #   noisy_call # warning voiced
  def silence_warnings
    with_warnings(nil) { yield }
  end

  # Sets $VERBOSE to +true+ for the duration of the block and back to its
  # original value afterwards.
  def enable_warnings
    with_warnings(true) { yield }
  end

  # Sets $VERBOSE for the duration of the block and back to its original
  # value afterwards.
  def with_warnings(flag)
    old_verbose, $VERBOSE = $VERBOSE, flag
    yield
  ensure
    $VERBOSE = old_verbose
  end

  # Blocks and ignores any exception passed as argument if raised within the block.
  #
  #   suppress(ZeroDivisionError) do
  #     1/0
  #     puts 'This code is NOT reached'
  #   end
  #
  #   puts 'This code gets executed and nothing related to ZeroDivisionError was seen'
  def suppress(*exception_classes)
    yield
  rescue *exception_classes
  end
end

Version data entries

9 entries across 9 versions & 2 rubygems

Version	Path
core_ext-0.0.6	lib/core_ext/kernel/reporting.rb
activesupport-5.0.0.beta2	lib/active_support/core_ext/kernel/reporting.rb
activesupport-5.0.0.beta1.1	lib/active_support/core_ext/kernel/reporting.rb
core_ext-0.0.5	lib/core_ext/kernel/reporting.rb
core_ext-0.0.4	lib/core_ext/kernel/reporting.rb
activesupport-5.0.0.beta1	lib/active_support/core_ext/kernel/reporting.rb
core_ext-0.0.3	lib/core_ext/kernel/reporting.rb
core_ext-0.0.2	lib/core_ext/kernel/reporting.rb
core_ext-0.0.1	lib/core_ext/kernel/reporting.rb