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-rw-r--r--src/guile/skribilo/resolve.scm81
1 files changed, 48 insertions, 33 deletions
diff --git a/src/guile/skribilo/resolve.scm b/src/guile/skribilo/resolve.scm
index 54bf112..6405ebd 100644
--- a/src/guile/skribilo/resolve.scm
+++ b/src/guile/skribilo/resolve.scm
@@ -121,14 +121,16 @@
(when (eq? parent 'unspecified)
(let ((p (assq 'parent env)))
(slot-set! node 'parent
- (and (pair? p) (pair? (cdr p)) (cadr p)))
- (when (pair? options)
- (debug-item "unresolved options=" options)
- (for-each (lambda (o)
- (set-car! (cdr o)
- (do-resolve! (cadr o) engine env)))
- options)
- (debug-item "resolved options=" options))))
+ (and (pair? p) (pair? (cdr p)) (cadr p)))))
+
+ (when (pair? options)
+ (debug-item "unresolved options=" options)
+ (for-each (lambda (o)
+ (set-car! (cdr o)
+ (do-resolve! (cadr o) engine env)))
+ options)
+ (debug-item "resolved options=" options))
+
(slot-set! node 'body (do-resolve! body engine env))
(slot-set! node 'resolved? (not (*unresolved*))))
@@ -137,29 +139,43 @@
(define-method (do-resolve! (node <container>) engine env0)
- (let ((body (slot-ref node 'body))
- (options (slot-ref node 'options))
- (env (slot-ref node 'env))
- (parent (slot-ref node 'parent)))
- (with-debug 5 'do-resolve<container>
- (debug-item "markup=" (markup-markup node))
- (debug-item "body=" body)
- (debug-item "env0=" env0)
- (debug-item "env=" env)
- (when (eq? parent 'unspecified)
- (let ((p (assq 'parent env0)))
- (slot-set! node 'parent (and (pair? p) (pair? (cdr p)) (cadr p)))
- (when (pair? options)
- (let ((e (append `((parent ,node)) env0)))
- (debug-item "unresolved options=" options)
- (for-each (lambda (o)
- (set-car! (cdr o)
- (do-resolve! (cadr o) engine e)))
- options)
- (debug-item "resolved options=" options)))))
- (let ((e `((parent ,node) ,@env ,@env0)))
- (slot-set! node 'body (do-resolve! body engine e)))
- node)))
+ ;; Similar to the NODE method, except that (i) children will get NODE as
+ ;; their parent, and (ii) NODE may extend its environment, through its
+ ;; `env' slot.
+ (if (ast-resolved? node)
+ node
+ (let ((body (slot-ref node 'body))
+ (options (slot-ref node 'options))
+ (env (slot-ref node 'env))
+ (parent (slot-ref node 'parent))
+ (unresolved? (*unresolved*)))
+ (with-debug 5 'do-resolve<container>
+ (debug-item "markup=" (markup-markup node))
+ (debug-item "body=" body)
+ (debug-item "env0=" env0)
+ (debug-item "env=" env)
+ (parameterize ((*unresolved* #f))
+ (when (eq? parent 'unspecified)
+ (let ((p (assq 'parent env0)))
+ (slot-set! node 'parent
+ (and (pair? p) (pair? (cdr p)) (cadr p)))))
+
+ (when (pair? options)
+ (let ((e (append `((parent ,node)) env0)))
+ (debug-item "unresolved options=" options)
+ (for-each (lambda (o)
+ (set-car! (cdr o)
+ (do-resolve! (cadr o)
+ engine e)))
+ options)
+ (debug-item "resolved options=" options)))
+
+ (let ((e `((parent ,node) ,@env ,@env0)))
+ (slot-set! node 'body (do-resolve! body engine e)))
+ (slot-set! node 'resolved? (not (*unresolved*))))
+
+ (*unresolved* (or unresolved? (not (ast-resolved? node))))
+ node))))
(define-method (do-resolve! (node <document>) engine env0)
@@ -188,8 +204,7 @@
(res (proc node engine env))
(loc (ast-loc node)))
(when (ast? res)
- (ast-loc-set! res loc)
- (slot-set! res 'parent parent))
+ (ast-loc-set! res loc))
(debug-item "res=" res)
(*unresolved* #t)
res))))