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-rw-r--r--activesupport/lib/active_support/core_ext/module/delegation.rb21
1 files changed, 11 insertions, 10 deletions
diff --git a/activesupport/lib/active_support/core_ext/module/delegation.rb b/activesupport/lib/active_support/core_ext/module/delegation.rb
index 1aa72da743..0318f9a568 100644
--- a/activesupport/lib/active_support/core_ext/module/delegation.rb
+++ b/activesupport/lib/active_support/core_ext/module/delegation.rb
@@ -183,16 +183,17 @@ class Module
exception = %(raise DelegationError, "#{self}##{method_prefix}#{method} delegated to #{to}.#{method}, but #{to} is nil: \#{self.inspect}")
module_eval(<<-EOS, file, line - 2)
- def #{method_prefix}#{method}(#{definition}) # def customer_name(*args, &block)
- _ = #{to} # _ = client
- _.#{method}(#{definition}) # _.name(*args, &block)
- rescue NoMethodError # rescue NoMethodError
- if _.nil? # if _.nil?
- #{exception} # # add helpful message to the exception
- else # else
- raise # raise
- end # end
- end # end
+ def #{method_prefix}#{method}(#{definition}) # def customer_name(*args, &block)
+ _ = #{to} # _ = client
+ _.#{method}(#{definition}) # _.name(*args, &block)
+ rescue NoMethodError => e # rescue NoMethodError => e
+ location = "%s:%d:in `%s'" % [__FILE__, __LINE__ - 2, '#{method_prefix}#{method}'] # location = "%s:%d:in `%s'" % [__FILE__, __LINE__ - 2, 'customer_name']
+ if _.nil? && e.backtrace.first == location # if _.nil? && e.backtrace.first == location
+ #{exception} # # add helpful message to the exception
+ else # else
+ raise # raise
+ end # end
+ end # end
EOS
end
end