Changeset 38894 in project

Timestamp:

08/28/20 17:56:47 (5 months ago)

Author:

felix winkelmann

Message:

updated coops page

File:

• wiki/eggref/5/coops (modified) (3 diffs)

wiki/eggref/5/coops

@@ -292 +292 @@
 can be used to assign a value to a slot.
 
-===== slot-initialized?
-
-<procedure>(slot-initialized? OBJECT SLOTNAME)</procedure>
+===== slot-exists?
+
+<procedure>(slot-exists? OBJECT SLOTNAME)</procedure>
 
 Returns {{#t}} if {{OBJECT}} has a slot named {{SLOTNAME}} or 
 {{#f}} ortherwise.
+
+===== slot-initialized?
+
+<procedure>(slot-initialized? OBJECT SLOTNAME)</procedure>
+
+Returns {{#t}} if the slot named {{SLOTNAME}} in {{OBJECT}} has been
+initialized. If the slot does not exist, an error is signalled.
 
 ==== Predefined classes
@@ -480 +487 @@
 === Author
 
-COOPS is based on [[http://www.ccs.neu.edu/home/dorai/scmobj/scmobj.html|ScmObj]]
+COOPS is based on [[https://web.archive.org/web/20141228020142/http://www.ccs.neu.edu/home/dorai/scmobj/scmobj.html|ScmObj]]
 by Dorai Sitaram and was ported to CHICKEN and heavily extended by [[felix winkelmann]]
 
@@ -509 +516 @@
 
 === Version History
-
+ 
+; 1.3 : Added {{slot-exists?}}.
+; 1.2 : Disabled interrupts during execution of COOPS runtime procedures.
 ; 1.1 : Use proper record-type tag-variable instead of unqualified record type name, fix missing source-dependency.
 ; 1.0 : Initial release for CHICKEN 5, based on version 1.7 from CHICKEN 4