X-Git-Url: https://git.distorted.org.uk/~mdw/sod/blobdiff_plain/1d8cc67a3f4ded443f5efc673a616883cbae9c50..d0bb9ec5609757a5c1850af65c6c27febe766e55:/src/parser/scanner-charbuf-impl.lisp

diff --git a/src/parser/scanner-charbuf-impl.lisp b/src/parser/scanner-charbuf-impl.lisp
index 86dc999..65f6e1e 100644
--- a/src/parser/scanner-charbuf-impl.lisp
+++ b/src/parser/scanner-charbuf-impl.lisp
@@ -60,18 +60,6 @@
   (buf nil :type (or charbuf (member nil :eof)) :read-only t)
   (size 0 :type charbuf-index :read-only t))
 
-(export 'charbuf-scanner-place-p)
-(defstruct charbuf-scanner-place
-  "A captured place we can return to later.
-
-   We remember the buffer-chain link, so that we can retrace our steps up to
-   the present.  We also need the index at which we continue reading
-   characters; and the line and column numbers to resume from."
-  (link nil :type charbuf-chain-link :read-only t)
-  (index 0 :type charbuf-index :read-only t)
-  (line 0 :type fixnum :read-only t)
-  (column 0 :type fixnum :read-only t))
-
 ;;;--------------------------------------------------------------------------
 ;;; Main class.
 
@@ -122,6 +110,25 @@
    captured places properly when he's finished.  In practice, this is usually
    done using the `peek' parser macro so there isn't a problem."))
 
+(export 'charbuf-scanner-place-p)
+(defstruct charbuf-scanner-place
+  "A captured place we can return to later.
+
+   We remember the buffer-chain link, so that we can retrace our steps up to
+   the present.  We also need the index at which we continue reading
+   characters; and the line and column numbers to resume from."
+  (scanner nil :type charbuf-scanner :read-only t)
+  (link nil :type charbuf-chain-link :read-only t)
+  (index 0 :type charbuf-index :read-only t)
+  (line 0 :type fixnum :read-only t)
+  (column 0 :type fixnum :read-only t))
+
+(defmethod file-location ((place charbuf-scanner-place))
+  (make-file-location (scanner-filename
+		       (charbuf-scanner-place-scanner place))
+		      (charbuf-scanner-place-line place)
+		      (charbuf-scanner-place-column place)))
+
 ;;;--------------------------------------------------------------------------
 ;;; Utilities.
 
@@ -317,7 +324,7 @@
     (incf captures)
     (unless tail
       (setf tail (make-charbuf-chain-link :buf buf :size size)))
-    (make-charbuf-scanner-place :link tail :index index
+    (make-charbuf-scanner-place :scanner scanner :link tail :index index
 				:line line :column column)))
 
 (defmethod scanner-restore-place ((scanner charbuf-scanner) place)
@@ -367,7 +374,8 @@
   (let* ((slices nil)
 	 (place-b (or place-b
 		      (with-slots (index tail) scanner
-			(make-charbuf-scanner-place :link tail
+			(make-charbuf-scanner-place :scanner scanner
+						    :link tail
 						    :index index))))
 	 (last-link (charbuf-scanner-place-link place-b)))
     (flet ((bad ()