Vim filetype and tools support for Crystal language.
VimL
Latest commit a442685 Jan 9, 2017 @rhysd committed on GitHub Merge pull request #37 from chocolateboy/matchit-enum
add matchit support for `enum`

README.md

Filetype Support for Crystal

Build Status

This is filetype support for Crystal programming language.

  • crystal filetype detection
  • Syntax highlight
  • Indentation
  • vim-matchit support
  • crystal tool integration (implementations, context, formatter, and so on)
  • crystal spec integration
  • Syntax check (Using Syntastic)
  • Completion (currently for variable names)

Installation

Please copy autoload, ftdetect, ftplugin, indent, plugin and syntax directories into your ~/.vim (or ~/vimfiles in Windows) directory.

If you use Vim8, :packadd is available to install. Please see :help packages for more detail.

Otherwise, please use your favorite plugin manager like vim-plug.

Syntax Highlight

screenshot

This plugin was firstly imported from Ruby's filetype plugin. There are many differences between Ruby and Crystal but vim-crystal can't support all of them yet. In addition, Crystal is growing rapidly and being added many changes. If you've found some issues or points to improve, pull requests and issues are welcome.

Spec Integration

screen shot: run spec

Running spec(s) and show the result in Vim. The output is colorful if possible as executed in CLI.

:CrystalSpecSwitch (mapping to gss)

It switches current source file and its spec file. This command assumes the standard directory layout which crystal init generates.

If you don't set g:crystal_define_mappings to 0, you can use this feature with mapping gss.

:CrystalSpecRunAll (mapping to gsa)

It runs the all specs for current file's project.

If you don't set g:crystal_define_mappings to 0, you can use this feature with mapping gsa.

:CrystalSpecRunCurrent (mapping to gsc)

It runs spec for current buffer.

  1. When current buffer is a spec source, :CrystalSpecRunCurrent runs the spec under the cursor. You should execute this command after moving cursor to it ... do line or describe ... do line.
  2. When current buffer is not a spec source, :CrystalSpecRunCurrent finds corresponding spec source and runs all specs in the source.

If you don't set g:crystal_define_mappings to 0, you can use this feature with mapping gsc.

Formatter Integration

format screenshot

You can run formatter manually by :CrystalFormat or automatically at saving buffer.

When you set g:crystal_auto_format to 1, current buffer is automatically formatted on BufWritePre. The variable is set to 0 by default because crystal tool format currently seems buggy.

Tool Integration

:CrystalDef (mapping to gd)

It makes cursor jump to the definition of name under the curosr. This command uses crystal tool implementations.

screenshort

If you don't set g:crystal_define_mappings to 0, you can use this feature with mapping gd.

:CrystalContext (mapping to gc)

It shows the context under the cursor. Context includes variable names and their types.

screenshot

If you don't set g:crystal_define_mappings to 0, you can use this feature with mapping gc.

:CrystalHierarchy

It shows types hierarchy of current code.

screenshot

Completion

Omni completion for crystal can be used by <C-x><C-o>. (Please see :help ins-completion)

screenshot

Currently you can complete variable names.

License

This plugin is distributed under the MIT License.

Copyright (c) 2014-2015 rhysd