Fix dap--put-if-absent to allow unsetting keys (#529)

* Fix dap--put-if-absent to allow unsetting keys * Capture evaluation as variable to prevent exponential macro expansion
emacs-lsp · Oct 20, 2021 · a18f29e · a18f29e
1 parent 01e8f0f
commit a18f29e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dap-mode.el b/dap-mode.el
@@ -377,7 +377,7 @@ has succeeded."
 
 (defmacro dap--put-if-absent (config key form)
   "Update KEY to FORM if KEY does not exist in plist CONFIG."
-  `(plist-put ,config ,key (or (plist-get ,config ,key) ,form)))
+  `(let ((c ,config)) (if (plist-member c ,key) c (plist-put c ,key ,form))))
 
 (defun dap--completing-read (prompt collection transform-fn &optional predicate
                                     require-match initial-input