Node:Property Primitives, Next:Old-fashioned Properties, Up:Object Properties
| primitive-make-property not_found_proc | Scheme Procedure |
| scm_primitive_make_property (not_found_proc) | C Function |
Create a property token that can be used with
primitive-property-ref and primitive-property-set!.
See primitive-property-ref for the significance of
not_found_proc.
|
| primitive-property-ref prop obj | Scheme Procedure |
| scm_primitive_property_ref (prop, obj) | C Function |
Return the property prop of obj. When no value
has yet been associated with prop and obj, call
not-found-proc instead (see primitive-make-property)
and use its return value. That value is also associated with
obj via primitive-property-set!. When
not-found-proc is #f, use #f as the
default value of prop.
|
| primitive-property-set! prop obj val | Scheme Procedure |
| scm_primitive_property_set_x (prop, obj, val) | C Function |
| Associate code with prop and obj. |
| primitive-property-del! prop obj | Scheme Procedure |
| scm_primitive_property_del_x (prop, obj) | C Function |
| Remove any value associated with prop and obj. |