(defparameter *prims* nil)
(defparameter *prim-aliases* nil)
+(defvar *local-variables* nil)
+
(defun prim-name (prim) (getf prim :name))
(defun prim-type (prim) (getf prim :type))
(defun prim-func (prim) (getf prim :func))
(defun is-command (prim) (eql :command (getf prim :type)))
(defun find-prim (symb)
- (or
- (find symb *prims* :key #'prim-name)
- (find-prim (getf (find symb *prim-aliases* :key #'prim-name) :real-symb))))
+ (when symb
+ (or
+ (find symb *prims* :key #'prim-name)
+ (find-prim (getf (find symb *prim-aliases* :key #'prim-name) :real-symb)))))
; Let this grow, slowly but surely, eventually taking on calling context, etc.
; For now, it's just a
running engine. This is the entry point for commands, so it does
extra checking to ensure that commands are actually in the PARSED-AST."
`(progn
- ,@(mapcar #'transpile-command parsed-ast)))
+ ,@(transpile-commands-inner parsed-ast)))
+
+(defun transpile-commands-inner (parsed-ast)
+ (cond
+ ((not parsed-ast) nil)
+ ((and (listp (car parsed-ast)) (eql :let (caar parsed-ast))) (list (handle-let parsed-ast)))
+ (t
+ (cons
+ (transpile-command (car parsed-ast))
+ (transpile-commands-inner (cdr parsed-ast))))))
+
+(defun handle-let (parsed-ast &optional vars)
+ (if
+ (and (listp (car parsed-ast)) (eql :let (caar parsed-ast)))
+ (let
+ ((*local-variables* (cons (second (car parsed-ast)) *local-variables*)))
+ (handle-let
+ (cdr parsed-ast)
+ (cons
+ (list
+ (transpile-reporter (second (car parsed-ast)))
+ (transpile-reporter (third (car parsed-ast))))
+ vars)))
+ `(let*
+ ,vars
+ ,@(transpile-commands-inner parsed-ast))))
(defun transpile-command (command)
(cond
The Common lisp code that is returned, when run, will return some value."
(cond
((numberp reporter) reporter) ; The parser converts to double for us
- ((symbolp reporter) reporter) ; The parser should have checked that having a symbol here is ok
+ ((stringp reporter) reporter)
+ ; The parser should have checked that having a symbol here is ok
+ ((symbolp reporter) (intern (symbol-name reporter) clnl:*model-package*))
((not (listp reporter)) (error "Expected a statement of some sort"))
((eql :command-block (car reporter)) (transpile-command-block reporter))
+ ((eql :list-literal (car reporter)) (cons 'list (mapcar #'transpile-reporter (cdr reporter))))
+ ((eql :reporter-block (car reporter)) (transpile-reporter-block reporter))
+ ((and (symbolp (car reporter)) (find (car reporter) *local-variables*))
+ (intern (symbol-name (car reporter)) clnl:*model-package*))
((not (find-prim (car reporter))) (error "Couldn't find the reporter for ~S" (car reporter)))
((not (is-reporter (find-prim (car reporter)))) (error "Expected reporter, got ~S" (car reporter)))
(t (apply (prim-func (find-prim (car reporter))) (mapcar #'transpile-reporter (cdr reporter))))))
(defun transpile-command-block (block)
- `(lambda () ,@(mapcar #'transpile-command (cdr block))))
+ `(lambda () ,@(transpile-commands-inner (cdr block))))
+
+(defun transpile-reporter-block (block)
+ (when (/= (length block) 2) (error "Reporter block invalid ~S" block))
+ `(lambda ()
+ ,(transpile-reporter (cadr block))))
; Undoes the previous function :)
(defun make-command-block-inline (block)
(defmacro defsimpleprim (name type simple-func)
`(defprim ,name ,type (lambda (&rest args) `(,',simple-func ,@args))))
+(defmacro defkeywordprim (name)
+ `(defprim ,name :reporter (lambda () ',name)))
+
(defmacro defprim-alias (name real-symb)
`(push (list :name ,name :real-symb ,real-symb) *prim-aliases*))
+(defmacro defagentvalueprim (name)
+ `(defprim ,name :reporter (lambda () `(clnl-nvm:agent-value ,,name))))
+
; We count on the parser to handle arguemnts for us, when collating things.
(defsimpleprim := :reporter cl:equalp)
(defsimpleprim :+ :reporter cl:+)
(defsimpleprim :* :reporter cl:*)
(defsimpleprim :/ :reporter cl:/)
-(defprim :any? :reporter (lambda (agentset) `(> (length ,agentset) 0)))
+(defprim :any? :reporter (lambda (agentset) `(> (clnl-nvm:count ,agentset) 0)))
(defsimpleprim :ask :command clnl-nvm:ask)
+(defagentvalueprim :color)
+(defsimpleprim :count :reporter clnl-nvm:count)
(defsimpleprim :crt :command clnl-nvm:create-turtles)
(defsimpleprim :die :command clnl-nvm:die)
(defsimpleprim :fd :command clnl-nvm:forward)
+(defsimpleprim :hatch :command clnl-nvm:hatch)
(defprim :if :command (lambda (pred a) `(when ,pred ,@(make-command-block-inline a))))
(defprim :ifelse :command (lambda (pred a b)
`(if ,pred
,@(make-command-block-inline b))))
(defprim-alias :if-else :ifelse)
+(defagentvalueprim :label)
+(defagentvalueprim :label-color)
(defsimpleprim :lt :command clnl-nvm:turn-left)
+(defsimpleprim :not :reporter cl:not)
+(defkeywordprim :nobody)
+(defsimpleprim :one-of :reporter clnl-nvm:one-of)
+(defsimpleprim :of :reporter clnl-nvm:of)
+(defsimpleprim :patches :reporter clnl-nvm:patches)
+(defagentvalueprim :pcolor)
+(defsimpleprim :reset-ticks :command clnl-nvm:reset-ticks)
+(defsimpleprim :random :reporter clnl-nvm:random)
(defsimpleprim :random-float :reporter clnl-nvm:random-float)
+(defsimpleprim :random-xcor :reporter clnl-nvm:random-xcor)
+(defsimpleprim :random-ycor :reporter clnl-nvm:random-ycor)
(defsimpleprim :rt :command clnl-nvm:turn-right)
+(defsimpleprim :set :command cl:setf)
+(defsimpleprim :set-default-shape :command clnl-nvm:set-default-shape)
+(defsimpleprim :setxy :command clnl-nvm:setxy)
(defsimpleprim :show :command clnl-nvm:show)
+(defagentvalueprim :size)
+(defsimpleprim :tick :command clnl-nvm:tick)
+(defsimpleprim :ticks :reporter clnl-nvm:ticks)
(defsimpleprim :turtles :reporter clnl-nvm:turtles)
+(defagentvalueprim :who)
+(defsimpleprim :with :reporter clnl-nvm:with)
+
+; Colors
+(defmacro defcolorprim (color) `(defprim ,color :reporter (lambda () `(clnl-nvm:lookup-color ,,color))))
+(defcolorprim :black)
+(defcolorprim :blue)
+(defcolorprim :brown)
+(defcolorprim :green)
+(defcolorprim :white)
projects / clnl / blobdiff