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-rw-r--r--guix/inferior.scm12
1 files changed, 11 insertions, 1 deletions
diff --git a/guix/inferior.scm b/guix/inferior.scm
index 2fe34ca0dc..defdcc4e48 100644
--- a/guix/inferior.scm
+++ b/guix/inferior.scm
@@ -69,6 +69,8 @@
inferior-exception-arguments
inferior-exception-inferior
inferior-exception-stack
+ inferior-protocol-error?
+ inferior-protocol-error-inferior
read-repl-response
inferior-packages
@@ -314,6 +316,10 @@ equivalent. Return #f if the inferior could not be launched."
(inferior inferior-exception-inferior) ;<inferior> | #f
(stack inferior-exception-stack)) ;list of (FILE COLUMN LINE)
+(define-condition-type &inferior-protocol-error &error
+ inferior-protocol-error?
+ (inferior inferior-protocol-error-inferior)) ;<inferior>
+
(define* (read-repl-response port #:optional inferior)
"Read a (guix repl) response from PORT and return it as a Scheme object.
Raise '&inferior-exception' when an exception is read from PORT."
@@ -339,7 +345,11 @@ Raise '&inferior-exception' when an exception is read from PORT."
(raise (condition (&inferior-exception
(arguments (cons key (map sexp->object objects)))
(inferior inferior)
- (stack '())))))))
+ (stack '())))))
+ (_
+ ;; Protocol error.
+ (raise (condition (&inferior-protocol-error
+ (inferior inferior)))))))
(define (read-inferior-response inferior)
(read-repl-response (inferior-socket inferior)