U:RDoc::AnyMethod[iI" on_error:ETI"!Concurrent::Promise#on_error;TF:publico:RDoc::Markup::Document:@parts[ : @fileI".lib/concurrent-ruby/concurrent/promise.rb;T:0@omit_headings_from_table_of_contents_below000[ I" (&block);T@FI"Promise;TcRDoc::NormalClass0[I"Concurrent::Promise;TFI"rescue;T