(in-package #:clnl-transpiler)
(defparameter *prims* nil)
-(defparameter *prim-aliases* nil)
(defvar *local-variables* nil)
+(defvar *dynamic-prims* nil)
(defun prim-name (prim) (getf prim :name))
(defun prim-type (prim) (getf prim :type))
(defun prim-func (prim) (getf prim :func))
-(defun is-reporter (prim) (eql :reporter (getf prim :type)))
-(defun is-command (prim) (eql :command (getf prim :type)))
+(defun prim-reporter-p (prim) (eql :reporter (getf prim :type)))
+(defun prim-command-p (prim) (eql :command (getf prim :type)))
(defun find-prim (symb)
(when symb
(find-if
(lambda (prim-name) (or (eql symb prim-name) (and (listp prim-name) (find symb prim-name))))
- *prims* :key #'prim-name)))
+ (append *prims* *dynamic-prims*)
+ :key #'prim-name)))
-; Let this grow, slowly but surely, eventually taking on calling context, etc.
-; For now, it's just a
-(defun transpile-commands (parsed-ast)
- "TRANSPILE-COMMANDS PARSED-AST => AST
+(defun transpile (parsed-ast &optional dynamic-prims)
+ "TRANSPILE PARSED-AST &optional DYNAMIC-PRIMS => AST
+
+ DYNAMIC-PRIMS: DYNAMIC-PRIM*
+ DYNAMIC-PRIM: (:name NAME :type TYPE :macro MACRO :func FUNC)
+ TYPE: :reporter | :command
ARGUMENTS AND VALUES:
PARSED-AST: An ast as returned by the parser
AST: An common lisp AST that can be actually run in a common lisp instance
+ NAME: A symbol in the keyword package
+ MACRO: A macro that will be called with the arguments ast
+ FUNC: A function that will be called with the transpiled arguments
DESCRIPTION:
- TRANSPILE-COMMANDS takes a unambigious PARSED-AST and converts it to
- Common Lisp code.
+ TRANSPILE takes a unambigious PARSED-AST and converts it to
+ Common Lisp code. The PARSED-AST must be either a list of commands,
+ or a single reporter.
+
+ When a set of DYNAMIC-PRIMS is included, external language constructs
+ can be also transpiled. The provided functions will be inserted into
+ the returned AST with a call to FUNCALL. If :macro is included, instead
+ of having a call to FUNCALL provided, the macro will be run at netlogo
+ transpile time, with the arguments it should have specified to the
+ parser. The result of that function call will then be dropped into
+ the ast.
Calling eval on that code should work correctly as long as you have 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."
+ running engine."
+
+ (let
+ ((*dynamic-prims*
+ (mapcar
+ (lambda (prim)
+ (if (getf prim :macro)
+ (append (list :func (getf prim :macro)) prim)
+ (append (list :func (lambda (&rest args) `(funcall ,(getf prim :func) ,@args))) prim)))
+ dynamic-prims)))
+ (cond
+ ((command-list-p parsed-ast) (transpile-commands parsed-ast))
+ ((and (listp parsed-ast) (= 1 (length parsed-ast)) (reporter-p (car parsed-ast)))
+ (transpile-reporter (car parsed-ast)))
+ (t (error "Is neither a list of commands nor a reporter: ~S" parsed-ast)))))
+
+(defun command-list-p (parsed-ast)
+ "COMMAND-LIST-P PARSED-AST => RESULT
+
+ARGUMENTS AND VALUES:
+
+ PARSED-AST: An ast as returned by the parser
+ RESULT: A boolean
+
+DESCRIPTION:
+
+ COMMAND-LIST-P returns whether the parsed-ast is a valid list
+ of commands."
+ (and
+ (every #'listp parsed-ast)
+ (every #'prim-command-p (mapcar #'find-prim (mapcar #'car parsed-ast)))))
+
+(defun reporter-p (parsed-ast)
+ "REPORTER-P PARSED-AST => RESULT
+
+ARGUMENTS AND VALUES:
+
+ PARSED-AST: An ast as returned by the parser
+ RESULT: A boolean
+
+DESCRIPTION:
+
+ REPORTER-P returns whether the parsed-ast is a valid reporter."
+ (and
+ (symbolp (car parsed-ast))
+ (prim-reporter-p (find-prim (car parsed-ast)))))
+
+; Let this grow, slowly but surely, eventually taking on calling context, etc.
+; For now, it's just a
+(defun transpile-commands (parsed-ast)
`(progn
,@(transpile-commands-inner parsed-ast)))
(cond
((not (listp command)) (error "Expected a statement of some sort"))
((not (find-prim (car command))) (error "Couldn't find the command for ~S" (car command)))
- ((not (is-command (find-prim (car command)))) (error "Expected command, got ~S" (car command)))
+ ((not (prim-command-p (find-prim (car command)))) (error "Expected command, got ~S" (car command)))
(t (apply (prim-func (find-prim (car command))) (mapcar #'transpile-reporter (cdr command))))))
(defun transpile-reporter (reporter)
- "TRANSPILE-REPORTER REPORTER => AST
-
-ARGUMENTS AND VALUES:
-
- REPORTER: An ast returned from the parser.
- AST: An common lisp AST that can be actually run in a common lisp instance
-
-DESCRIPTION:
-
- TRANSPILE-REPORTER takes a unambigious PARSED-AST and converts it to
- Common Lisp code.
-
- Calling eval on that code should work correctly as long as you have a
- running engine. This is the entry point for reporters, so it does
- extra checking to ensure that the reporter is actually in the REPORTER.
-
- The Common lisp code that is returned, when run, will return some value."
(cond
((numberp reporter) reporter) ; The parser converts to double for us
((stringp reporter) 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)))
+ ((not (prim-reporter-p (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)
(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))))
(defagentvalueprim :label)
(defagentvalueprim :label-color)
+(defsimpleprim :let :command nil)
(defsimpleprim :lt :command clnl-nvm:turn-left)
(defsimpleprim :not :reporter cl:not)
(defkeywordprim :nobody)
projects / clnl / blobdiff