Correct anonymous fun indent inside block

Author: tonini

elixir-smie.el

@@ -246,7 +246,8 @@
          ;; And if we're NOT on a blank line, move to the end of the line, and see
          ;; if we're looking back at a block operator.
          (t (move-end-of-line 1)
-            (looking-back elixir-smie--block-operator-regexp)))))))
+            (and (looking-back elixir-smie--block-operator-regexp)
+                 (not (looking-back ".+fn.+")))))))))
 
 (defun elixir-smie--same-line-as-parent (parent-pos child-pos)
   "Return non-nil if `child-pos' is on same line as `parent-pos'."
@@ -377,6 +378,8 @@
       ((and (smie-rule-parent-p "do")
             (smie-rule-hanging-p))
        (smie-rule-parent))
+      ((and (smie-rule-parent-p "fn"))
+       (smie-rule-parent elixir-smie-indent-basic))
       ;; There is a case when between two line inside a def block
       ;; when jumping to the next line and indent, where the cursor
       ;; jumps too much in front.
@@ -471,8 +474,7 @@
       ((and (smie-rule-parent-p "def")
             (smie-rule-hanging-p))
        (smie-rule-parent elixir-smie-indent-basic))
-      (t
-       elixir-smie-indent-basic)))
+      (t elixir-smie-indent-basic)))
     (`(:before . "end")
      (smie-rule-parent))
     ;; Closing paren on the other line
@@ -685,7 +687,9 @@
        (smie-rule-parent (- elixir-smie-indent-basic)))
 
       ((elixir-smie-current-line-start-with-pipe-operator-p)
-       (smie-rule-parent))))
+       (smie-rule-parent))
+      ((smie-rule-parent-p "(")
+       (smie-rule-parent elixir-smie-indent-basic))))
     (`(:after . ";")
      (cond
       ((smie-rule-parent-p "def")

test/elixir-mode-indentation-test.el

@@ -823,7 +823,7 @@ x = do_something(:foo,
                     :bar)"
 "
 x = do_something(:foo,
-                 :bar)")
+  :bar)")
 
 (elixir-def-indentation-test indent-inside-parens/3
                              (:tags '(indentation))
@@ -955,14 +955,15 @@ end"
 
 (elixir-def-indentation-test indent-mixed-match
                              (:tags '(indentation))
-   "
+"
 case x do
 a -> b
 c ->
 d
 e -> f
 end
-" "
+"
+"
 case x do
   a -> b
   c ->
@@ -1814,6 +1815,25 @@ Enum.map(addresses, fn({mac_address, dbms}) ->
 end)
 ")
 
+(elixir-def-indentation-test indent-statement-with-anonymous-fn
+                             (:tags '(indentation))
+"
+cond do
+ is_nil(val) ->
+IO.puts \"OK\"
+              Enum.any?(1..6, fn -> end)
+    true ->
+end
+"
+"
+cond do
+  is_nil(val) ->
+    IO.puts \"OK\"
+    Enum.any?(1..6, fn -> end)
+  true ->
+end
+")
+
 ;; We don't want automatic whitespace cleanup here because of the significant
 ;; whitespace after `Record' above. By setting `whitespace-action' to nil,
 ;; `whitespace-mode' won't automatically clean up trailing whitespace (in my