Module: Webhookdb::MethodUtilities
- Included in:
- Webhookdb, AWS, Async, ConnectionCache, Console, Customer, Increase, Message, Webhookdb::Message::FakeTransport, Webhookdb::Message::Transport, MicrosoftCalendar, Organization::DbBuilder, Postgres, Replicator, Replicator::Fake, Service, Service::Collection, Service::Entities::Base, Slack, SpecHelpers::Postgres, Stripe, Subscription
- Defined in:
- lib/webhookdb/method_utilities.rb
Overview
A collection of methods for declaring other methods.
class MyClass
extend Webhookdb::MethodUtilities
singleton_attr_accessor :types
singleton_method_alias :kinds, :types
end
MyClass.types = [ :pheno, :proto, :stereo ]
MyClass.kinds # => [:pheno, :proto, :stereo]
Instance Method Summary collapse
-
#attr_predicate(attrname) ⇒ Object
Create a reader in the form of a predicate for the given
attrname
. -
#attr_predicate_accessor(attrname) ⇒ Object
Create a reader in the form of a predicate for the given
attrname
as well as a regular writer method. -
#singleton_attr_accessor(*symbols) ⇒ Object
Creates readers and writers that allow assignment to the attributes of the singleton of the declaring object that correspond to the specified
symbols
. -
#singleton_attr_reader(*symbols) ⇒ Object
Creates instance variables and corresponding methods that return their values for each of the specified
symbols
in the singleton of the declaring object (e.g., class instance variables and methods if declared in a Class). -
#singleton_attr_writer(*symbols) ⇒ Object
Creates methods that allow assignment to the attributes of the singleton of the declaring object that correspond to the specified
symbols
. -
#singleton_method_alias(newname, original) ⇒ Object
Creates an alias for the
original
method namednewname
. -
#singleton_predicate_accessor(*symbols) ⇒ Object
Create predicate methods and writers that allow assignment to the attributes of the singleton of the declaring object that correspond to the specified
symbols
. -
#singleton_predicate_reader(*symbols) ⇒ Object
Create instance variables and corresponding methods that return true or false values for each of the specified
symbols
in the singleton of the declaring object.
Instance Method Details
#attr_predicate(attrname) ⇒ Object
Create a reader in the form of a predicate for the given attrname
.
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# File 'lib/webhookdb/method_utilities.rb', line 67 def attr_predicate(attrname) attrname = attrname.to_s.chomp("?") define_method(:"#{attrname}?") do instance_variable_get(:"@#{attrname}") ? true : false end end |
#attr_predicate_accessor(attrname) ⇒ Object
Create a reader in the form of a predicate for the given attrname
as well as a regular writer method.
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# File 'lib/webhookdb/method_utilities.rb', line 76 def attr_predicate_accessor(attrname) attrname = attrname.to_s.chomp("?") attr_writer(attrname) attr_predicate(attrname) end |
#singleton_attr_accessor(*symbols) ⇒ Object
Creates readers and writers that allow assignment to the attributes of the singleton of the declaring object that correspond to the specified symbols
.
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# File 'lib/webhookdb/method_utilities.rb', line 47 def singleton_attr_accessor(*symbols) symbols.each do |sym| singleton_class.__send__(:attr_accessor, sym) end end |
#singleton_attr_reader(*symbols) ⇒ Object
Creates instance variables and corresponding methods that return their values for each of the specified symbols
in the singleton of the declaring object (e.g., class instance variables and methods if declared in a Class).
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# File 'lib/webhookdb/method_utilities.rb', line 22 def singleton_attr_reader(*symbols) singleton_class.instance_exec(symbols) do |attrs| attr_reader(*attrs) end end |
#singleton_attr_writer(*symbols) ⇒ Object
Creates methods that allow assignment to the attributes of the singleton of the declaring object that correspond to the specified symbols
.
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# File 'lib/webhookdb/method_utilities.rb', line 38 def singleton_attr_writer(*symbols) singleton_class.instance_exec(symbols) do |attrs| attr_writer(*attrs) end end |
#singleton_method_alias(newname, original) ⇒ Object
Creates an alias for the original
method named newname
.
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# File 'lib/webhookdb/method_utilities.rb', line 62 def singleton_method_alias(newname, original) singleton_class.__send__(:alias_method, newname, original) end |
#singleton_predicate_accessor(*symbols) ⇒ Object
Create predicate methods and writers that allow assignment to the attributes of the singleton of the declaring object that correspond to the specified symbols
.
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# File 'lib/webhookdb/method_utilities.rb', line 56 def singleton_predicate_accessor(*symbols) singleton_class.extend(Webhookdb::MethodUtilities) singleton_class.attr_predicate_accessor(*symbols) end |
#singleton_predicate_reader(*symbols) ⇒ Object
Create instance variables and corresponding methods that return true or false values for each of the specified symbols
in the singleton of the declaring object.
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# File 'lib/webhookdb/method_utilities.rb', line 31 def singleton_predicate_reader(*symbols) singleton_class.extend(Webhookdb::MethodUtilities) singleton_class.attr_predicate(*symbols) end |