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This change includes a brief (non-sensical) sample program I wrote to illustrate many of Cool's language constructs, as well as a simple rule to distinguish Cool files from Common Lisp or OpenCL (it has a line that starts with the word 'class'). Further, it includes a second example program adapted from an example contained in the Cool distribution (list.cl), which contains a few further language constructs and captures the style of a Cool program.
27 lines
581 B
Common Lisp
27 lines
581 B
Common Lisp
(* This simple example of a list class is adapted from an example in the
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Cool distribution. *)
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class List {
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isNil() : Bool { true };
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head() : Int { { abort(); 0; } };
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tail() : List { { abort(); self; } };
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cons(i : Int) : List {
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(new Cons).init(i, self)
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};
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};
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class Cons inherits List {
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car : Int; -- The element in this list cell
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cdr : List; -- The rest of the list
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isNil() : Bool { false };
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head() : Int { car };
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tail() : List { cdr };
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init(i : Int, rest : List) : List {
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{
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car <- i;
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cdr <- rest;
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self;
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}
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};
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};
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