Add language support for persistent library syntax (helix-editor#7261)

book/src/generated/lang-support.md

@@ -59,6 +59,7 @@
 | graphql | ✓ |  |  |  |
 | hare | ✓ |  |  |  |
 | haskell | ✓ | ✓ |  | `haskell-language-server-wrapper` |
+| haskell-persistent | ✓ |  |  |  |
 | hcl | ✓ |  | ✓ | `terraform-ls` |
 | heex | ✓ | ✓ |  | `elixir-ls` |
 | hosts | ✓ |  |  |  |

languages.toml

@@ -955,6 +955,18 @@ indent = { tab-width = 2, unit = "  " }
 name = "haskell"
 source = { git = "https://github.com/tree-sitter/tree-sitter-haskell", rev = "98fc7f59049aeb713ab9b72a8ff25dcaaef81087" }
 
+[[language]]
+name = "haskell-persistent"
+scope = "source.persistentmodels"
+file-types = ["persistentmodels"]
+roots = []
+comment-token = "--"
+indent = { tab-width = 2, unit = "  " }
+
+[[grammar]]
+name = "haskell-persistent"
+source = { git = "https://github.com/MercuryTechnologies/tree-sitter-haskell-persistent", rev = "58a6ccfd56d9f1de8fb9f77e6c42151f8f0d0f3d" }
+
 [[language]]
 name = "purescript"
 scope = "source.purescript"

runtime/queries/haskell-persistent/folds.scm

@@ -0,0 +1,3 @@
+[
+ (entity_definition)
+] @fold

runtime/queries/haskell-persistent/highlights.scm

@@ -0,0 +1,37 @@
+;; ----------------------------------------------------------------------------
+;; Literals and comments
+
+(integer) @constant.numeric.integer
+(float) @constant.numeric.float
+(char) @constant.character
+(string) @string
+(attribute_name) @attribute
+(attribute_exclamation_mark) @attribute
+
+(con_unit) @constant.builtin ; unit, as in ()
+
+(comment) @comment
+
+;; ----------------------------------------------------------------------------
+;; Keywords, operators, includes
+
+[
+  "Id"
+  "Primary"
+  "Foreign"
+  "deriving"
+] @keyword
+
+"=" @operator
+
+;; ----------------------------------------------------------------------------
+;; Functions and variables
+
+(variable) @variable
+
+;; ----------------------------------------------------------------------------
+;; Types
+
+(type) @type
+
+(constructor) @constructor

runtime/queries/haskell-persistent/locals.scm

@@ -0,0 +1 @@
+(fields (variable)) @local.definition

runtime/queries/haskell/injections.scm

@@ -1,6 +1,14 @@
 ((comment) @injection.content
  (#set! injection.language "comment"))
 
+(quasiquote
+ (quoter) @_quoter
+ ((quasiquote_body) @injection.content
+  (#match? @_quoter "(persistWith|persistLowerCase|persistUpperCase)")
+  (#set! injection.language "haskell-persistent")
+ )
+)
+
 (quasiquote
  (quoter) @injection.language
  (quasiquote_body) @injection.content)