8.2. The structure Meta-Object Protocol

The following functions accept a structure name as the only argument. If DEFSTRUCT was given the :TYPE option (i.e., DEFSTRUCT did not define a new type), then (FIND-CLASS name) fails (and the regular CLOS Meta-Object Protocol is not applicable), but these functions still work.

EXT:STRUCTURE-SLOTS
Return the LIST of effective slot definition metaobjects.
EXT:STRUCTURE-DIRECT-SLOTS
Return the LIST of direct slot definition metaobjects.
EXT:STRUCTURE-KEYWORD-CONSTRUCTOR
Return the name (a SYMBOL) of the keyword constructor function for the structure, or NIL if the structure has no keyword constructor.
EXT:STRUCTURE-BOA-CONSTRUCTORS
Return the LIST of names (SYMBOLs) of BOA constructors for the structure.
EXT:STRUCTURE-COPIER
Return the name (a SYMBOL) of the copier for the structure.
EXT:STRUCTURE-PREDICATE
Return the name (a SYMBOL) of the predicate for the structure.

These notes document CLISP version 2.49.60+Last modified: 2017-11-21