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check symbols in lambdas
[jscl.git]
/
lispstrack.lisp
diff --git
a/lispstrack.lisp
b/lispstrack.lisp
index
1419eb9
..
d463be5
100644
(file)
--- a/
lispstrack.lisp
+++ b/
lispstrack.lisp
@@
-11,6
+11,8
@@
(defvar *compilations* nil)
(defmacro define-compilation (name args &body body)
(defvar *compilations* nil)
(defmacro define-compilation (name args &body body)
+ "creates a new primitive `name' with parameters args and @body. The
+body can access to the local environment through the variable env"
`(push (list ',name (lambda (env ,@args) ,@body))
*compilations*))
`(push (list ',name (lambda (env ,@args) ,@body))
*compilations*))
@@
-24,16
+26,22
@@
(concat "(function ("
(format nil "~{V_~a~^, ~}" args)
"){ "
(concat "(function ("
(format nil "~{V_~a~^, ~}" args)
"){ "
- (ls-compile-block body env)
+ (ls-compile-block body (extend-env args env))
"})
"))
"})
"))
+(defun extend-env (args env)
+ (append (mapcar #'list args) env))
+
(defparameter *env* '())
(defparameter *env-fun* '())
(defparameter *env* '())
(defparameter *env-fun* '())
+
(defun ls-compile (sexp &optional env)
(cond
(defun ls-compile (sexp &optional env)
(cond
- ((symbolp sexp) (format nil "V_~a" sexp))
+ ((symbolp sexp) (if (assoc sexp env)
+ (format nil "V_~a" sexp)
+ (error "Undefined variable `~a'" sexp)))
((integerp sexp) (format nil " ~a " sexp))
((stringp sexp) (format nil " \"~a\" " sexp))
; list
((integerp sexp) (format nil " ~a " sexp))
((stringp sexp) (format nil " \"~a\" " sexp))
; list