Fix metadata on functions.

- Don't use metadata to store ast, env, params data.
- In Clojure, store metadata on the :meta key of the real metadata.
  This also allows using any datatype as metadata.

1 files changed, 18 insertions, 7 deletions

diff --git a/php/types.php b/php/types.php
index fa57266..e3df3ac 100644
--- a/php/types.php
+++ b/php/types.php
@@ -59,31 +59,42 @@ class FunctionClass {
     public $func = NULL;
     public $type = 'native';   // 'native' or 'platform'
     public $meta = NULL;
+    public $ast = NULL;
+    public $env = NULL;
+    public $params = NULL;
     public $ismacro = False;
-    public function __construct($func, $type, $meta=NULL, $ismacro=False) {
+    public function __construct($func, $type,
+                                $ast, $env, $params, $ismacro=False) {
         $this->func = $func;
         $this->type = $type;
-        $this->meta = $meta;
+        $this->ast = $ast;
+        #print_r($ast);
+        $this->env = $env;
+        $this->params = $params;
         $this->ismacro = $ismacro;
     }
     public function __invoke() {
         $args = func_get_args();
         if ($this->type === 'native') {
-            $fn_env = new Env($this->meta['env'],
-                              $this->meta['params'], $args);
+            $fn_env = new Env($this->env,
+                              $this->params, $args);
             $evalf = $this->func;
-            return $evalf($this->meta['exp'], $fn_env);
+            return $evalf($this->ast, $fn_env);
         } else {
             return call_user_func_array($this->func, $args);
         }
     }
+    public function gen_env($args) {
+        return new Env($this->env, $this->params, $args);
+    }
     public function apply($args) {
         return call_user_func_array(array(&$this, '__invoke'),$args);
     }
 }
 
-function _function($func, $type='platform', $meta=NULL, $ismacro=False) {
-    return new FunctionClass($func, $type, $meta, $ismacro);
+function _function($func, $type='platform',
+                   $ast=NULL, $env=NULL, $params=NULL, $ismacro=False) {
+    return new FunctionClass($func, $type, $ast, $env, $params, $ismacro);
 }
 function _function_Q($obj) { return $obj instanceof FunctionClass; }