98 lines
4.7 KiB
Org Mode
98 lines
4.7 KiB
Org Mode
#+TITLE: Purescript layer
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#+TAGS: general|js|layer|multi-paradigm|programming
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[[file:img/purescript-logo.png]]
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* Table of Contents :TOC_5_gh:noexport:
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- [[#description][Description]]
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- [[#features][Features:]]
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- [[#install][Install]]
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- [[#configuration][Configuration]]
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- [[#add-import-on-completion][Add import on completion]]
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- [[#node-modules][Node Modules]]
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- [[#error-popup][Error popup]]
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- [[#key-bindings][Key bindings]]
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- [[#purescript][Purescript]]
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- [[#imports][Imports]]
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- [[#psc-ide][psc-ide]]
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- [[#repl][REPL]]
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* Description
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This layer provides basic Purescript editing support for spacemacs.
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** Features:
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- Syntax highlighting through [[https://github.com/dysinger/purescript-mode][purescript-mode]]
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- Automatic insert of imports through [[https://github.com/epost/psc-ide-emacs][psc-ide-emacs]]
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- REPL through [[https://github.com/ardumont/emacs-psci][psci]]
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- Syntax checking through flycheck
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- Autocompletion through company
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* Install
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To use this configuration layer, add it to your =~/.spacemacs=. You will need to
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add =purescript= to the existing =dotspacemacs-configuration-layers= list in
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this file.
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You'll also need to make sure the PureScript compiler and its associated
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binaries (psc-ide-server, psci,...) are on your path. Installation instructions
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can be found [[https://github.com/purescript/documentation/blob/master/guides/Getting-Started.md][here]].
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* Configuration
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** Add import on completion
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Set =purescript-add-import-on-completion= to nil to make =psc-ide= stop adding
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imports on completion. Default value is =t=.
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** Node Modules
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If you would like =node_modules/.bin= to be automatically added to the buffer
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local =exec_path=, e.g. to support project local purs/pulp installations, set the
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=node-add-modules-path= variable in the =purescript= config section. Note that
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doing this [[https://stackoverflow.com/questions/9679932#comment33532258_9683472][introduces a security risk]]:
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#+BEGIN_SRC elisp
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(setq-default dotspacemacs-configuration-layers
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'((purescript :variables node-add-modules-path t)))
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#+END_SRC
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** Error popup
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If you set =purescript-enable-rebuild-on-save= to non-nil, you will get a popup
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buffer showing you your current warnings/errors one at a time. This is primarily
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meant as an alternative to using flycheck. Default value is nil.
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* Key bindings
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** Purescript
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*** Imports
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| Key binding | Description |
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|-------------+---------------------------------------------------------------|
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| ~SPC m i =~ | Format imports |
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| ~SPC m i \~ | Return to where you were editing before navigating to imports |
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| ~SPC m i a~ | Align imports |
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| ~SPC m i n~ | Navigate to the imports |
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*** psc-ide
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| Key binding | Description |
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|---------------+---------------------------------------------------------------------------|
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| ~SPC m m s~ | Start psc-ide-server |
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| ~SPC m m q~ | Quit the current psc-ide-server |
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| ~SPC m m l~ | Load definitions for the modules inside your project |
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| ~SPC m m b~ | Rebuilds the current file and displays any warnings or errors |
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| ~SPC m m t~ | Add a new clause for the function signature at point |
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| ~SPC m m c~ | Casesplits on the identifier at the current cursor position |
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| ~SPC m m L~ | Load a specific module (This is mostly used for troubleshooting) |
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| ~SPC m m i a~ | Add an import for the identifier at the current cursor position |
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| ~SPC m m i s~ | Inserts a suggestion for the warning/error at the current cursor position |
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| ~SPC m h t~ | Show type at point |
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| ~SPC m g g~ | Goto definition for identifier at point |
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** REPL
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[[https://github.com/ardumont/emacs-psci][psci]] provides a very basic REPL for purescript. The following key
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bindings are available:
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| Key binding | Description |
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|-------------+----------------------------------------------------------------------------------|
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| ~SPC m s b~ | Equivalent of =:m /path/to/current/module/file.purs= - Load <file> for importing |
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| ~SPC m s i~ | Launch a psci console buffer |
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| ~SPC m s m~ | Equivalent of =:i your.current.module.name= - Import <module> for use in PSCI |
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| ~SPC m s p~ | Load or reload files defined in the project file .psci |
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