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 | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/core_ext/object/try.rb b/activesupport/lib/active_support/core_ext/object/try.rb index 48190e1e66..31919474ed 100644 --- a/activesupport/lib/active_support/core_ext/object/try.rb +++ b/activesupport/lib/active_support/core_ext/object/try.rb @@ -33,6 +33,11 @@ class Object # ... # end # + # You can also call try with a block without accepting an argument, and the block + # will be instance_eval'ed instead: + # + # @person.try { upcase.truncate(50) } + # # Please also note that +try+ is defined on +Object+, therefore it won't work # with instances of classes that do not have +Object+ among their ancestors, # like direct subclasses of +BasicObject+. For example, using +try+ with @@ -40,7 +45,11 @@ class Object # delegator itself. def try(*a, &b) if a.empty? && block_given? - yield self + if b.arity.zero? + instance_eval(&b) + else + yield self + end else public_send(*a, &b) if respond_to?(a.first) end |