dd85084826
Define multiple dispatch functions for each service: - spacemacs//java-setup-backend - spacemacs//java-setup-auto-completion - spacemacs//java-setup-syntax-checking - spacemacs//java-setup-spell-checking - spacemacs//java-setup-eldoc java: replace ensime-configure-keybindings function by a variable It's not convenient to have key bindings in funcs.el file, instead of relying on a function we define a private layer variable java--ensime-modes which can be updated by other layers using a :pre-config use-package hook. java: refactor key bindings - define key bindings for meghanada back-end - move ensime key bindings documentation from scala layer to java layer - change SPC m d for daemon to SPC m D (since SPC m d is reserved for debugging)
4.2 KiB
Scala layer
- Description
- Layer Installation
- Ensime
- Scalastyle
- Automatically show the type of the symbol under the cursor
- Automatically insert asterisk in multiline comments
- Automatically replace arrows with unicode ones
- Auto-start
- Key bindings
with 
Description
This layer adds support for the Scala language using the excellent ENSIME client/server.
Layer Installation
To use this configuration layer, add it to your ~/.spacemacs. You will need to
add scala to the existing dotspacemacs-configuration-layers list in this
file.
Ensime
ENSIME provides IDE-like features, such as refactoring, incremental compilation and project-wide type-checking.
ENSIME requires a configuration file at the root of each Scala project. It provides an SBT plugin to generate these files.
Installation instructions and usage can be found in the Java layer
README.org.
Scalastyle
Scalastyle provides style-checking and linting. The Emacs functionality is provided by Flycheck.
To use scalastyle, it must be present as an executable in your PATH.
- OSX users:
brew install scalastyle - Linux, please see http://www.scalastyle.org/command-line.html
To test if scalastyle executable is in your path, run scalastyle in a new
terminal, it should output something like:
$ scalastyle
scalastyle 0.8.0
Usage: scalastyle [options] <source directory>
...
Finally, enable the syntax-checking layer and set the flycheck-scalastylerc
variable to a valid location.
(setq-default flycheck-scalastylerc "/usr/local/etc/scalastyle_config.xml")See the flycheck documentation and scalastyle configuration for up-to-date configuration instructions.
Use Java doc-style
To enable java-doc-style, set the variable scala-indent:use-javadoc-style to
t
(setq-default dotspacemacs-configuration-layers '(
(scala :variables scala-indent:use-javadoc-style t)))Automatically show the type of the symbol under the cursor
To enable the feature ensime-print-type-at-point when cursor moves, set the
variable scala-enable-eldoc to t.
(setq-default dotspacemacs-configuration-layers '(
(scala :variables scala-enable-eldoc t)))Enabling this option can cause slow editor performance.
Automatically insert asterisk in multiline comments
To insert a leading asterisk in multiline comments automatically, set the
variable scala-auto-insert-asterisk-in-comments to t.
(setq-default dotspacemacs-configuration-layers '(
(scala :variables scala-auto-insert-asterisk-in-comments t)))Automatically replace arrows with unicode ones
To replace =>, -> and <- with unicode arrows ⇒, → and ←, set the
variable scala-use-unicode-arrows to t.
If in some occasions you don't want the arrows replaced (for example when
defining compound operators like =>>), you can always undo the change and get
the ascii arrows back.
(setq-default dotspacemacs-configuration-layers '(
(scala :variables scala-use-unicode-arrows t)))Auto-start
If you prefer to have Ensime start when you load a scala file, you can enable it with
(setq-default dotspacemacs-configuration-layers '(
(scala :variables scala-auto-start-ensime t)))Key bindings
All ensime key bindings are listed in the java layer README.org.