From 1369b62d71e06735a3e4d2b8349cfffe6de12a6c Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Fri, 13 Feb 2009 00:54:26 +0100
Subject: Faster, asynchronous autodoc.

---
 elisp/geiser-autodoc.el               | 38 ++++++++++++++++++++++-------------
 scheme/guile/geiser/emacs.scm         |  2 +-
 scheme/guile/geiser/introspection.scm | 10 +++++++--
 3 files changed, 33 insertions(+), 17 deletions(-)

diff --git a/elisp/geiser-autodoc.el b/elisp/geiser-autodoc.el
index f5db63b..9c3c40b 100644
--- a/elisp/geiser-autodoc.el
+++ b/elisp/geiser-autodoc.el
@@ -67,13 +67,29 @@ when `geiser-autodoc-display-module-p' is on."
 (make-variable-buffer-local
  (defvar geiser-autodoc--last nil))
 
-(defun geiser-autodoc--function-args (fun)
-  (if (eq fun (car geiser-autodoc--last))
-      (cdr geiser-autodoc--last)
-    (let ((result (geiser-eval--send/result `(:gs ((:ge proc-args) ',fun)))))
-      (when (not (listp result)) (setq result 'undefined))
-      (setq geiser-autodoc--last (cons fun result))
-      result)))
+(make-variable-buffer-local
+ (defvar geiser-autodoc--last-funs nil))
+
+(defun geiser-autodoc--function-args (funs)
+  (let ((pr (and (eq (car geiser-autodoc--last) (caar funs)) (car funs))))
+    (if pr (geiser-autodoc--fun-args-str (car pr)
+                                         (cdr geiser-autodoc--last)
+                                         (cdr pr))
+      (setq geiser-autodoc--last-funs funs)
+      (geiser-eval--send `(:gs ((:ge arguments) ,@(mapcar (lambda (f) (list 'quote (car f)))
+                                                          funs)))
+                         'geiser-autodoc--function-args-cont)
+      nil)))
+
+(defun geiser-autodoc--function-args-cont (ret)
+  (let ((result (geiser-eval--retort-result ret)))
+    (when (listp result)
+      (setq geiser-autodoc--last result)
+      (eldoc-message
+       (geiser-autodoc--fun-args-str (car result)
+                                     (cdr result)
+                                     (or (cdr (assoc (car result)
+                                                     geiser-autodoc--last-funs))))))))
 
 (defun geiser-autodoc--insert (sym current pos)
   (let ((str (format "%s" sym)))
@@ -111,13 +127,7 @@ when `geiser-autodoc-display-module-p' is on."
 ;;; Autodoc function:
 
 (defun geiser-autodoc--eldoc-function ()
-  (let ((data (geiser-syntax--enclosing-form-data)))
-    (catch 'doc-msg
-      (dolist (f/a data)
-        (let ((args (geiser-autodoc--function-args (car f/a))))
-          (when (listp args)
-            (throw 'doc-msg
-                   (geiser-autodoc--fun-args-str (car f/a) args (cdr f/a)))))))))
+  (geiser-autodoc--function-args (geiser-syntax--enclosing-form-data)))
 
 
 ;;; Autodoc mode:
diff --git a/scheme/guile/geiser/emacs.scm b/scheme/guile/geiser/emacs.scm
index a3212af..79da237 100644
--- a/scheme/guile/geiser/emacs.scm
+++ b/scheme/guile/geiser/emacs.scm
@@ -25,7 +25,7 @@
 ;;; Code:
 
 (define-module (geiser emacs)
-  #:re-export (ge:proc-args
+  #:re-export (ge:arguments
                ge:completions
                ge:symbol-location
                ge:compile-file
diff --git a/scheme/guile/geiser/introspection.scm b/scheme/guile/geiser/introspection.scm
index 38c0b79..efe9a09 100644
--- a/scheme/guile/geiser/introspection.scm
+++ b/scheme/guile/geiser/introspection.scm
@@ -25,11 +25,17 @@
 ;;; Code:
 
 (define-module (geiser introspection)
-  #:export (proc-args completions symbol-location)
+  #:export (arguments completions symbol-location)
   #:use-module (system vm program)
   #:use-module (ice-9 session)
   #:use-module (srfi srfi-1))
 
+(define (arguments sym . syms)
+  (let loop ((sym sym) (syms syms))
+    (cond ((proc-args sym) => (lambda (args) (cons sym args)))
+          ((null? syms) #f)
+          (else (loop (car syms) (cdr syms))))))
+
 (define (proc-args proc)
   (obj-args (resolve-symbol proc)))
 
@@ -73,7 +79,7 @@
           ((pair? formals) (format-args (car formals)
                                         (cdr formals)
                                         (symbol-module name)))
-          (else '()))))
+          (else #f))))
 
 (define (macro-args macro)
   (let ((prog (macro-transformer macro)))
-- 
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