adds psc-ide support to purescript layer

layers/+lang/purescript/README.org

@@ -9,6 +9,7 @@
  - [[Key bindings][Key bindings]]
    - [[Purescript][Purescript]]
      - [[Imports][Imports]]
+     - [[psc-ide][psc-ide]]
    - [[REPL][REPL]]
 
 * Description
@@ -17,6 +18,7 @@ This layer provides basic Purescript editing support for spacemacs
 thanks to the following packages:
 - [[https://github.com/dysinger/purescript-mode][purescript-mode]]
 - [[https://github.com/ardumont/emacs-psci][psci]]
+- [[https://github.com/epost/psc-ide-emacs][psc-ide-emacs]]
 
 * Install
 
@@ -26,6 +28,8 @@ To use this contribution add it to your =~/.spacemacs=
   (setq-default dotspacemacs-configuration-layers '(purescript))
 #+END_SRC
 
+If you want to get autocompletions and type information you have to install [[https://github.com/kRITZCREEK/psc-ide][psc-ide]].
+
 * Key bindings
 
 ** Purescript
@@ -39,6 +43,14 @@ To use this contribution add it to your =~/.spacemacs=
 | ~SPC m i a~ | Align imports                                                 |
 | ~SPC m i n~ | Navigate to the imports                                       |
 
+*** psc-ide
+
+| Key Binding | Description                                             |
+|-------------+---------------------------------------------------------|
+| ~SPC m m s~ | Start psc-ide-server                                    |
+| ~SPC m m l~ | Load a module with its dependencies into psc-ide-server |
+| ~SPC m m t~ | Show type at point                                      |
+
 ** REPL
 
 [[https://github.com/ardumont/emacs-psci][psci]] provides a very basic REPL for purescript. The following key

layers/+lang/purescript/config.el

@@ -10,5 +10,4 @@
 ;;
 ;;; License: GPLv3
 
-
-;; Nothing here yet
+(spacemacs|defvar-company-backends purescript-mode)

layers/+lang/purescript/packages.el

@@ -13,10 +13,15 @@
 
 (setq purescript-packages
   '(
+    company
     purescript-mode
     psci
+    psc-ide
     ))
 
+(defun purescript/post-init-company ()
+  (spacemacs|add-company-hook purescript-mode))
+
 (defun purescript/init-purescript-mode ()
   (use-package purescript-mode
     :defer t
@@ -40,3 +45,15 @@
         "si" 'psci
         "sm" 'psci/load-module!
         "sp" 'psci/load-project-modules!))))
+
+(defun purescript/init-psc-ide ()
+  (use-package psc-ide
+    :defer t
+    :init
+    (progn
+      (add-hook 'purescript-mode-hook 'psc-ide-mode)
+      (push 'company-psc-ide-backend company-backends-purescript-mode)
+      (spacemacs/set-leader-keys-for-major-mode 'purescript-mode
+        "ms" 'psc-ide-server-start
+        "ml" 'psc-ide-load-module
+        "mt" 'psc-ide-show-type))))