From: David Vázquez <davazp@gmail.com>
Date: Wed, 19 Feb 2014 22:17:51 +0000 (+0100)
Subject: Implement a failing symbol-plist as primitive
X-Git-Url: http://repo.macrolet.net/gitweb/?p=jscl.git;a=commitdiff_plain;h=9fef9535299d5f5dafae9deb2c4bc41843bb178c

Implement a failing symbol-plist as primitive
---

diff --git a/jscl.lisp b/jscl.lisp
index 7c26841..e3a9581 100644
--- a/jscl.lisp
+++ b/jscl.lisp
@@ -54,8 +54,8 @@
     ("documentation" :target)
     ("misc"          :target)
     ("ffi"           :target)
+    ("symbol"        :target)
     ("package"       :target)
-
     ("read"          :both)
     ("defstruct"     :both)
     ("lambda-list"   :both)
diff --git a/src/compiler/compiler.lisp b/src/compiler/compiler.lisp
index 222f660..d2b6975 100644
--- a/src/compiler/compiler.lisp
+++ b/src/compiler/compiler.lisp
@@ -1072,9 +1072,6 @@
         (throw (+ "Function `" (call |xstring| (get symbol "name")) "' is undefined.")))
     (return func)))
 
-(define-builtin symbol-plist (x)
-  `(or (get ,x "plist") ,(convert nil)))
-
 (define-builtin lambda-code (x)
   `(call |make_lisp_string| (method-call ,x "toString")))
 
diff --git a/src/symbol.lisp b/src/symbol.lisp
new file mode 100644
index 0000000..0234232
--- /dev/null
+++ b/src/symbol.lisp
@@ -0,0 +1,37 @@
+;;; symbols --- 
+
+;; JSCL is free software: you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License as
+;; published by the Free Software Foundation, either version 3 of the
+;; License, or (at your option) any later version.
+;;
+;; JSCL is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;; General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with JSCL.  If not, see <http://www.gnu.org/licenses/>.
+
+(defun symbol-plist (x)
+  (cond
+    ((symbolp x) (error "`~a' is not a symbol." x))
+    ((in "plist" x) (oget* x "plist"))))
+
+(defun set-symbol-plist (new-value x)
+  (if (symbolp x)
+      (oset* new-value x "plist")
+      (error "`~a' is not a symbol." x)))
+
+(define-setf-expander symbol-plist (x)
+  (let ((g!x (gensym))
+        (g!value (gensym)))
+    (list (list g!x)
+          (list x)
+          (list g!value)
+          `(set-symbol-plist ,g!value ,g!x)
+          `(symbol-plist ,g!value))))
+
+(defun get (symbol indicator &optional default)
+  (getf (symbol-plist symbol) indicator default))
+