brew/Library/Homebrew/ignorable.rb
2021-04-14 12:37:18 +01:00

59 lines
1.3 KiB
Ruby

# typed: false
# frozen_string_literal: true
require "warnings"
Warnings.ignore(/warning: callcc is obsolete; use Fiber instead/) do
require "continuation"
end
# Provides the ability to optionally ignore errors raised and continue execution.
#
# @api private
module Ignorable
# Marks exceptions which can be ignored and provides
# the ability to jump back to where it was raised.
module ExceptionMixin
attr_accessor :continuation
def ignore
continuation.call
end
end
def self.hook_raise
Object.class_eval do
alias_method :original_raise, :raise
def raise(*)
callcc do |continuation|
super
rescue Exception => e # rubocop:disable Lint/RescueException
unless e.is_a?(ScriptError)
e.extend(ExceptionMixin)
e.continuation = continuation
end
super(e)
end
end
alias_method :fail, :raise
end
return unless block_given?
yield
unhook_raise
end
def self.unhook_raise
Object.class_eval do
# False positive - https://github.com/rubocop/rubocop/issues/5022
# rubocop:disable Lint/DuplicateMethods
alias_method :raise, :original_raise
alias_method :fail, :original_raise
# rubocop:enable Lint/DuplicateMethods
undef :original_raise
end
end
end