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-rw-r--r--geiser/eval.scm33
1 files changed, 29 insertions, 4 deletions
diff --git a/geiser/eval.scm b/geiser/eval.scm
index a74bf29..fc5d7bd 100644
--- a/geiser/eval.scm
+++ b/geiser/eval.scm
@@ -25,7 +25,7 @@
;;; Code:
(define-module (geiser eval)
- #:export (eval-in comp-file load-file)
+ #:export (eval-in compile-in comp-file load-file)
#:use-module (srfi srfi-1)
#:no-backtrace)
@@ -45,13 +45,38 @@ SUBR, MSG and REST."
(output
(with-output-to-string
(lambda ()
+ (set! result (eval form module))))))
+ (make-result result output)))
+ error-handler)))
+
+(define (compile-in form module-name)
+ "Compiles @var{form} in the module designated by @var{module-name}.
+If @var{module-name} is @var{#f} or resolution fails, the current module is used instead.
+The result is a list of the form ((RESULT . <form-value>) (OUTPUT . <string>))
+if no evaluation error happens, or ((ERROR (KEY . <error-key>) <error-arg>...))
+in case of errors. Each error arg is a cons (NAME . VALUE), where NAME includes
+SUBR, MSG and REST."
+ (let ((module (or (and (list? module-name)
+ (resolve-module module-name))
+ (current-module))))
+ (catch #t
+ (lambda ()
+ (let* ((result #f)
+ (output
+ (with-output-to-string
+ (lambda ()
(save-module-excursion
(lambda ()
(set-current-module module)
(set! result (compile form))))))))
- (list (cons 'result result) (cons 'output output))))
- (lambda (key . args)
- (list (cons 'error (apply parse-error (cons key args))))))))
+ (make-result result output)))
+ error-handler)))
+
+(define (make-result result output)
+ (list (cons 'result result) (cons 'output output)))
+
+(define (error-handler key . args)
+ (list (cons 'error (apply parse-error (cons key args)))))
(define (parse-error key . args)
(let* ((len (length args))