Class: Hash

Inherits:
Object
  • Object
show all
Defined in:
lib/safestruct.rb

Overview

add “beautiful” convenience helpers

Class Method Summary collapse

Class Method Details

.of(*args) ⇒ Object 



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# File 'lib/safestruct.rb', line 58

def self.of( *args )
   ## e.g. gets passed in [{Address=>Integer}]
   ##  check for Integer - use Hash.new(0)
   ##  check for Bool    - use Hash.new(False)
   if args[0].is_a?( Hash ) && args.size == 1
     arg = args[0].to_a   ## convert to array (for easier access)
     klass_key   = arg[0][0]
     ## note: for nested Hash.of or Array.of a ("prototype") object
     ##        gets passed in (NOT class) - auto-convert to use class
     klass_or_proto_value = arg[0][1]
     klass_value = klass_or_proto_value.is_a?( Class ) ? klass_or_proto_value : klass_or_proto_value.class
     klass = Safe::SafeHash.build_class( klass_key, klass_value )
     klass.new
   else
     raise ArgumentError.new( "[Hash.of] wrong argument; expected (default) hash e.g. String => Integer" )
   end
end