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.config/emacs/modules/lang/crystal/README.org

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+#+TITLE:   lang/crystal
+#+DATE:    January 16, 2017
+#+SINCE:   v1.3
+#+STARTUP: inlineimages nofold
+
+* Table of Contents :TOC_3:noexport:
+- [[#description][Description]]
+  - [[#maintainers][Maintainers]]
+  - [[#module-flags][Module Flags]]
+  - [[#plugins][Plugins]]
+- [[#prerequisites][Prerequisites]]
+  - [[#crystal][Crystal]]
+    - [[#macos][MacOS]]
+    - [[#arch][Arch]]
+  - [[#icr-repl][ICR (REPL)]]
+- [[#features][Features]]
+- [[#configuration][Configuration]]
+- [[#troubleshooting][Troubleshooting]]
+
+* Description
+This modules adds [[https://crystal-lang.org/][crystal]] support.
+
++ Syntax-checking (~flycheck~)
++ REPL (~inf-crystal~)
+
+** Maintainers
+This module has no dedicated maintainers.
+
+** Module Flags
+This module provides no flags.
+
+** Plugins
++ [[https://github.com/crystal-lang-tools/emacs-crystal-mode/][crystal-mode]]
++ [[https://github.com/brantou/inf-crystal.el/][inf-crystal]]
++ if ~:checkers syntax~ is enabled
+  - [[https://github.com/crystal-lang-tools/emacs-crystal-mode/][flycheck-crystal]]
+  - [[https://github.com/crystal-ameba/ameba.el/][flycheck-ameba]]
+
+* Prerequisites
+** Crystal
+you need to install [[https://crystal-lang.org/install/][the crystal compiler]].
+
+*** MacOS
+#+begin_src shell
+brew install crystal
+#+end_src
+
+*** Arch
+#+begin_src shell
+sudo pacman -S crystal shards
+#+end_src
+
+** ICR (REPL)
+you need to install [[https://github.com/crystal-community/icr][ICR]].
+
+* TODO Features
+# An in-depth list of features, how to use them, and their dependencies.
+* TODO Configuration
+# How to configure this module, including common problems and how to address them.
+
+* TODO Troubleshooting
+# Common issues and their solution, or places to look for help.

.config/emacs/modules/lang/crystal/config.el

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+;;; lang/crystal/config.el -*- lexical-binding: t; -*-
+
+(after! crystal-mode
+  (set-lookup-handlers! 'crystal-mode
+    :definition #'crystal-def-jump
+    :references #'crystal-tool-imp)
+  (when (featurep! +lsp)
+    (add-hook 'crystal-mode-local-vars-hook #'lsp!))
+  (map! :localleader
+        :map crystal-mode-map
+        :prefix "t"
+        "a" #'crystal-spec-all
+        "v" #'crystal-spec-buffer
+        "s" #'crystal-spec-line
+        "t" #'crystal-spec-switch))
+
+
+(use-package! flycheck-crystal
+  :when (featurep! :checkers syntax)
+  :after crystal-mode)
+
+
+(use-package! flycheck-ameba
+  :when (featurep! :checkers syntax)
+  :after crystal-mode
+  :config (flycheck-ameba-setup))
+
+
+(use-package! inf-crystal
+  :commands crystal-switch-to-inf)

.config/emacs/modules/lang/crystal/doctor.el

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+;; -*- lexical-binding: t; no-byte-compile: t; -*-
+;;; lang/crystal/doctor.el
+
+(unless (executable-find "icr")
+  (warn! "Couldn't find icr. REPL will not work"))

.config/emacs/modules/lang/crystal/packages.el

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+;; -*- no-byte-compile: t; -*-
+;;; lang/crystal/packages.el
+
+(package! crystal-mode :pin "15998140b0a4172cd4b4d14d0377fba96a8917fc")
+(package! inf-crystal :pin "02007b2a2a3bea44902d7c83c4acba1e39d278e3")
+(when (featurep! :checkers syntax)
+  (package! flycheck-crystal :pin "15998140b0a4172cd4b4d14d0377fba96a8917fc")
+  (package! flycheck-ameba :pin "0c4925ae0e998818326adcb47ed27ddf9761c7dc"))