Changeset 98

Timestamp:

07/23/07 18:28:33

Author:

fumanchu

Message:

New Expression.is_constant method.

Files:

• trunk/geniusql/logic.py (modified) (2 diffs)

trunk/geniusql/logic.py

@@ -345 +345 @@
-        f = eval(func, builtins)
-        self._load_func(f)
+    
+    def is_constant(self, value):
+        """Return True if self.func == (lambda: value), False otherwise."""
+        fc = self.func.func_code
+        return fc.co_code == 'd\x01\x00S' and fc.co_consts == (None, value)
-
-
@@ -457 +462 @@
-    return expr
-
-