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objects, and evalhook query
I'm having a bit of trouble understanding objects. For example,
suppose I want to define an array object such that a function
make-array returns a new instance of an array. I want to initialize
that object by setting a "contents" instance variable to a vector of
the right size, and a "dims" instance variable to the dimensions,
something like this:
(define (make-array contents dims)
((array? self) t)
((aref self subs) (vref contents (...
(((setter aref) self subs new)
(set (vref contents (...
(define-settable-operation (aref array subs))
but I don't seem to get any chance to initialize the "instance
variables" contents and dims; there is no equivalent to the NEW
method in Smalltalk. Or have I just missed it?
On a totally different topic, is there some equivalent to the evalhook
feature of various Lisps in T?