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emacs: Introduce REPL operation type.

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* emacs/guix-backend.el (guix-repl-operation-type): New variable.
  (guix-repl-output-filter): Run type hooks after performing an operation.
  (guix-eval-read): Add 'operation-type' argument.
This commit is contained in:
Alex Kost 2014-10-20 23:18:13 +04:00
parent d2b299a91f
commit ce2e4e3938
1 changed files with 23 additions and 3 deletions
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26
emacs/guix-backend.el
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@ -133,6 +133,12 @@ This REPL is used for receiving information only if
This internal variable is used to distinguish Guix operations This internal variable is used to distinguish Guix operations
from operations performed in Guix REPL by a user.") from operations performed in Guix REPL by a user.")
(defvar guix-repl-operation-type nil
"Type of the current operation performed by `guix-eval-in-repl'.
This internal variable is used to define what actions should be
executed after the current operation succeeds.
See `guix-eval-in-repl' for details.")
(defun guix-repl-operation-success-message () (defun guix-repl-operation-success-message ()
"Message telling about successful Guix operation." "Message telling about successful Guix operation."
(message "Guix operation has been performed.")) (message "Guix operation has been performed."))
@ -232,7 +238,16 @@ This is a replacement for `geiser-repl--output-filter'."
(geiser-autodoc--disinhibit-autodoc) (geiser-autodoc--disinhibit-autodoc)
(when guix-repl-operation-p (when guix-repl-operation-p
(setq guix-repl-operation-p nil) (setq guix-repl-operation-p nil)
(run-hooks 'guix-after-repl-operation-hook))) (run-hooks 'guix-after-repl-operation-hook)
;; Run hooks specific to the current operation type.
(when guix-repl-operation-type
(let ((type-hook (intern
(concat "guix-after-"
(symbol-name guix-repl-operation-type)
"-hook"))))
(setq guix-repl-operation-type nil)
(and (boundp type-hook)
(run-hooks type-hook))))))
((string-match geiser-guile--debugger-prompt-regexp str) ((string-match geiser-guile--debugger-prompt-regexp str)
(setq guix-repl-operation-p nil) (setq guix-repl-operation-p nil)
(geiser-con--connection-set-debugging geiser-repl--connection (geiser-con--connection-set-debugging geiser-repl--connection
@ -317,12 +332,17 @@ Return elisp expression of the first result value of evaluation."
(replace-regexp-in-string (replace-regexp-in-string
"#t" "t" (car (guix-eval str wrap)))))) "#t" "t" (car (guix-eval str wrap))))))
(defun guix-eval-in-repl (str &optional operation-buffer) (defun guix-eval-in-repl (str &optional operation-buffer operation-type)
"Switch to Guix REPL and evaluate STR with guile expression there. "Switch to Guix REPL and evaluate STR with guile expression there.
If OPERATION-BUFFER is non-nil, it should be a buffer from which If OPERATION-BUFFER is non-nil, it should be a buffer from which
the current operation was performed." the current operation was performed.
If OPERATION-TYPE is non-nil, it should be a symbol. After
successful executing of the current operation,
`guix-after-OPERATION-TYPE-hook' is called."
(run-hooks 'guix-before-repl-operation-hook) (run-hooks 'guix-before-repl-operation-hook)
(setq guix-repl-operation-p t (setq guix-repl-operation-p t
guix-repl-operation-type operation-type
guix-operation-buffer operation-buffer) guix-operation-buffer operation-buffer)
(let ((repl (guix-get-repl-buffer))) (let ((repl (guix-get-repl-buffer)))
(with-current-buffer repl (with-current-buffer repl