New feature: initialization keyword arguments.

[sod] / src / class-make-proto.lisp

diff --git a/src/class-make-proto.lisp b/src/class-make-proto.lisp
index f787bd3..d075304 100644 (file)
--- a/src/class-make-proto.lisp
+++ b/src/class-make-proto.lisp
@@ -124,6 +124,41 @@
    You are not expected to call this generic function directly; it's more
    useful as a place to hang methods for custom initializer classes."))
 
+(export 'make-sod-user-initarg)
+(defgeneric make-sod-user-initarg
+    (class name type pset &optional default location)
+  (:documentation
+   "Attach a user-defined initialization keyword argument to the CLASS.
+
+   The new argument has the given NAME and TYPE, and maybe a DEFAULT value.
+   Currently, initialization arguments are just dumb objects held in a
+   list."))
+
+(export 'make-sod-slot-initarg)
+(defgeneric make-sod-slot-initarg
+    (class name nick slot-name pset &optional location)
+  (:documentation
+   "Attach an initialization keyword argument to a slot by name.
+
+   The default method uses `find-instance-slot-by-name' to find the slot, and
+   `make-slot-initarg-using-slot' to actually make and attach the initarg."))
+
+(export 'make-sod-slot-initarg-using-slot)
+(defgeneric make-sod-slot-initarg-using-slot
+    (class name slot pset &optional location)
+  (:documentation
+   "Attach an initialization keyword argument to a SLOT.
+
+   The argument's type is taken from the slot type.  Slot initargs can't have
+   defaults: the slot's most-specific initializer is used instead.
+
+   You are not expected to call this generic function directly; it's more
+   useful as a place to hang methods for custom classes."))
+
+(export 'sod-initarg-argument)
+(defgeneric sod-initarg-argument (initarg)
+  (:documentation "Returns an `argument' object for the initarg."))
+
 (export 'make-sod-class-initfrag)
 (defgeneric make-sod-class-initfrag (class frag pset &optional location)
   (:documentation