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ANSI Common Lisp 10 Symbols 10.2 Dictionary of Symbols
10.2.13 symbol-plist |
Accessor |
- Syntax:
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symbol-plist
symbol
plist
(setf
(symbol-plist symbol) new-plist)
- Arguments and Values:
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symbol - a symbol.
plist, new-plist - a property list.
- Description:
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Accesses the property list of symbol.
- Examples:
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(setq sym (gensym)) #:G9723
(symbol-plist sym) ()
(setf (get sym 'prop1) 'val1) VAL1
(symbol-plist sym) (PROP1 VAL1)
(setf (get sym 'prop2) 'val2) VAL2
(symbol-plist sym) (PROP2 VAL2 PROP1 VAL1)
(setf (symbol-plist sym) (list 'prop3 'val3)) (PROP3 VAL3)
(symbol-plist sym) (PROP3 VAL3)
- Exceptional Situations:
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Should signal an error of type type-error if symbol is not a symbol.
- See Also:
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get,
remprop
- Notes:
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The use of setf should be avoided, since a symbol's
property list is a global resource that can contain information
established and depended upon by unrelated programs in the same Lisp image.
- Allegro CL Implementation Details:
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None.
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