Package cesdi
Description
All symbols from this package should normally be explicitly qualified, such as cesdi:compute-effective-slot-definition-initargs.
Don't (:use)!
cesdi
cesdi provides a compute-effective-slot-definition-initargs generic function
that allows for more ergonomic initialization of effective slot definition objects.
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Class cesdi:cesdi-mixin
Description
Classes that inherit from this class participate in the cesdi protocol.
Method c2mop:compute-effective-slot-definition
(class cesdi:cesdi-mixin) name direct-slot-definitions => effective-slot-definition
Description
This method is at the core of cesdi. It effectively translates from the old, awkward protocol to the new, ergonomic protocol.
This method first calls cesdi:compute-effective-slot-definition-initargs to compute the initargs.
It then calls cesdi:effective-slot-definition-class with the class and initargs to get the effective-slot-definition-class.
It then calls the next method to instantiate the effective-slot-definition, arranging for c2mop:effective-slot-definition-class to receive the effective-slot-definition-class through an internal special variable.
It then amends the effective-slot-definition to reflect the initargs, then returns effective-slot-definition.
Method c2mop:effective-slot-definition-class
(class cesdi:cesdi-mixin) &rest initargs => slot-definition-class
Description
Returns the value of the internal special variable bound by the above method.
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Generic Function cesdi:compute-effective-slot-definition-initargs
class direct-slot-definitions => initargs
Arguments and Values
- class -- A class.
- direct-slot-definitions -- A list.
- initargs -- A list of initialization arguments and values.
Description
Computes the initargs which will be (conceptually) passed to make-instance to construct the effective slot definition object.
Each of this generic function's primary and around methods, when they return an initargs result, must do so by calling the next method and returning that value, optionally preceded by additional initargs that either introduce additional values or override existing values. These methods can inspect the partial initargs list returned by the next method, but must ignore any arguments they don't recognize.
Methods
Method cesdi:compute-effective-slot-definition-initargs
(class cesdi:cesdi-mixin) direct-slot-definitions => initargs
Description
Computes and returns the standard initargs :name, :allocation, :initform, :initfunction, :type, :initargs and :documentation per CLHS 7.5.3 Inheritance of Slots and Slot Options.
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Generic Function cesdi:effective-slot-definition-class
class &rest initargs &key &allow-other-keys => slot-definition-class
Arguments and Values
- class -- A class.
- initargs -- A list of initialization arguments and values.
- slot-definition-class -- A class metaobject which is a subclass of the class c2mop:effective-slot-definition.
Description
This generic function is the cesdi counterpart to c2mop:effective-slot-definition-class.
The initargs it receives is the full list of initargs as computed by cesdi:compute-effective-slot-definition-initargs.
This is in contrast to c2mop:effective-slot-definition-class, which receives only the standard initargs.
Methods
Method cesdi:effective-slot-definition-class
(class c2mop:standard-class) &rest initargs => slot-definition-class
Description
Returns the class c2mop:standard-effective-slot-definition.