4e14ccc74d
Instiki now runs on the Rails 2.3.0 Candidate Release.
Among other improvements, this means that it now
automagically selects between WEBrick and Mongrel.
Just run
./instiki --daemon
36 lines
1 KiB
Ruby
36 lines
1 KiB
Ruby
class Object
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# Invokes the method identified by the symbol +method+, passing it any arguments
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# and/or the block specified, just like the regular Ruby <tt>Object#send</tt> does.
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#
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# *Unlike* that method however, a +NoMethodError+ exception will *not* be raised
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# and +nil+ will be returned instead, if the receiving object is a +nil+ object or NilClass.
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#
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# ==== Examples
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#
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# Without try
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# @person && @person.name
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# or
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# @person ? @person.name : nil
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#
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# With try
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# @person.try(:name)
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#
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# +try+ also accepts arguments and/or a block, for the method it is trying
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# Person.try(:find, 1)
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# @people.try(:collect) {|p| p.name}
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#--
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# This method definition below is for rdoc purposes only. The alias_method call
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# below overrides it as an optimization since +try+ behaves like +Object#send+,
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# unless called on +NilClass+.
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def try(method, *args, &block)
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send(method, *args, &block)
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end
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alias_method :try, :__send__
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end
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class NilClass
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def try(*args)
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nil
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end
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end
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