Created
February 2, 2024 12:23
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| # config/initializers/method_source_locator.rb | |
| # Utility to find the source location of a method based on its receiver and name | |
| def source_location(receiver, method_name) | |
| method_object = if receiver.singleton_class.method_defined?(method_name) || receiver.singleton_class.private_method_defined?(method_name) | |
| # Class method | |
| receiver.method(method_name) | |
| elsif receiver.method_defined?(method_name) || receiver.private_method_defined?(method_name) | |
| # Instance method | |
| receiver.instance_method(method_name) | |
| else | |
| raise NoMethodError, "Undefined method `#{method_name}` for #{receiver}" | |
| end | |
| method_object.source_location | |
| rescue NameError => e | |
| raise NameError, "Error finding method: #{e.message}" | |
| end | |
| # For a class method | |
| source_location(User, :hello) | |
| # For an instance method | |
| source_location(User.new, :instance_method_name) |
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