diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/object/try.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/object/try.rb | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/try.rb b/activesupport/lib/active_support/core_ext/object/try.rb index e77a9da0ec..30c835f5cd 100644 --- a/activesupport/lib/active_support/core_ext/object/try.rb +++ b/activesupport/lib/active_support/core_ext/object/try.rb @@ -1,12 +1,16 @@ class Object - # Invokes the method identified by the symbol +method+, passing it any arguments - # and/or the block specified, just like the regular Ruby <tt>Object#send</tt> does. + # Invokes the public method identified by the symbol +method+, passing it any arguments + # and/or the block specified, just like the regular Ruby <tt>Object#public_send</tt> does. # # *Unlike* that method however, a +NoMethodError+ exception will *not* be raised # and +nil+ will be returned instead, if the receiving object is a +nil+ object or NilClass. # # If try is called without a method to call, it will yield any given block with the object. # + # Please also note that +try+ is defined on +Object+, therefore it won't work with + # subclasses of +BasicObject+. For example, using try with +SimpleDelegator+ will + # delegate +try+ to target instead of calling it on delegator itself. + # # ==== Examples # # Without +try+ @@ -24,12 +28,12 @@ class Object # Without a method argument try will yield to the block unless the receiver is nil. # @person.try { |p| "#{p.first_name} #{p.last_name}" } #-- - # +try+ behaves like +Object#send+, unless called on +NilClass+. + # +try+ behaves like +Object#public_send+, unless called on +NilClass+. def try(*a, &b) if a.empty? && block_given? yield self else - __send__(*a, &b) + public_send(*a, &b) end end end |