X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Fmacroexpand.lisp;h=4b7a1a2d686e813a93f181b57f728fb5398c4432;hb=b4f7516350d9dd848552a3b38890fc7c908cea8e;hp=9a94350b8da044622b9d0811b681c7fe5336af73;hpb=4898ef32c639b1c7f4ee13a5ba566ce6debd03e6;p=sbcl.git

diff --git a/src/code/macroexpand.lisp b/src/code/macroexpand.lisp
index 9a94350..4b7a1a2 100644
--- a/src/code/macroexpand.lisp
+++ b/src/code/macroexpand.lisp
@@ -53,15 +53,25 @@
                        t)
                (values form nil))))
         ((symbolp form)
-         (let* ((venv (when env (sb!c::lexenv-vars env)))
-                (local-def (cdr (assoc form venv))))
-           (cond ((and (consp local-def)
-                       (eq (car local-def) 'macro))
-                  (values (cdr local-def) t))
-                 ((eq (info :variable :kind form) :macro)
-                  (values (info :variable :macro-expansion form) t))
-                 (t
-                  (values form nil)))))
+         (flet ((perform-symbol-expansion (symbol expansion)
+                  ;; CLHS 3.1.2.1.1 specifies that symbol-macros are expanded
+                  ;; via the macroexpand hook, too.
+                  (funcall sb!xc:*macroexpand-hook*
+                           (constantly expansion)
+                           symbol
+                           env)))
+           (let* ((venv (when env (sb!c::lexenv-vars env)))
+                  (local-def (cdr (assoc form venv))))
+             (cond ((and (consp local-def)
+                         (eq (car local-def) 'macro))
+                    (values (perform-symbol-expansion form (cdr local-def)) t))
+                   (local-def
+                    (values form nil))
+                   ((eq (info :variable :kind form) :macro)
+                    (let ((expansion (info :variable :macro-expansion form)))
+                      (values (perform-symbol-expansion form expansion) t)))
+                   (t
+                    (values form nil))))))
         (t
          (values form nil))))