From 01dd7b570a692ca59d34c74806e7fcdd48e60b21 Mon Sep 17 00:00:00 2001
From: Corey Powell <mistdragon100@gmail.com>
Date: Tue, 1 Jun 2021 14:44:03 -0500
Subject: [PATCH] Restored haskell syntax

It seems to work
---
 helix-syntax/languages/tree-sitter-haskell |  1 +
 helix-syntax/src/lib.rs                    |  2 +-
 languages.toml                             |  9 +++++
 runtime/queries/haskell/highlights.scm     | 43 ++++++++++++++++++++++
 runtime/queries/haskell/locals.scm         |  4 ++
 5 files changed, 58 insertions(+), 1 deletion(-)
 create mode 160000 helix-syntax/languages/tree-sitter-haskell
 create mode 100644 runtime/queries/haskell/highlights.scm
 create mode 100644 runtime/queries/haskell/locals.scm

diff --git a/helix-syntax/languages/tree-sitter-haskell b/helix-syntax/languages/tree-sitter-haskell
new file mode 160000
index 000000000..004f2709c
--- /dev/null
+++ b/helix-syntax/languages/tree-sitter-haskell
@@ -0,0 +1 @@
+Subproject commit 004f2709c460d95fbfd1061f8efc98f36e33c03c
diff --git a/helix-syntax/src/lib.rs b/helix-syntax/src/lib.rs
index bb0b2ec60..b923de957 100644
--- a/helix-syntax/src/lib.rs
+++ b/helix-syntax/src/lib.rs
@@ -74,7 +74,7 @@ macro_rules! mk_langs {
     (Css, tree_sitter_css),
     (Elixir, tree_sitter_elixir),
     (Go, tree_sitter_go),
-    // (Haskell, tree_sitter_haskell),
+    (Haskell, tree_sitter_haskell),
     (Html, tree_sitter_html),
     (Java, tree_sitter_java),
     (Javascript, tree_sitter_javascript),
diff --git a/languages.toml b/languages.toml
index 143a7c278..e13184c91 100644
--- a/languages.toml
+++ b/languages.toml
@@ -144,3 +144,12 @@ file-types = ["php"]
 roots = []
 
 indent = { tab-width = 2, unit = "  " }
+
+[[language]]
+name = "haskell"
+scope = "source.haskell"
+injection-regex = "haskell"
+file-types = ["hs"]
+roots = []
+
+indent = { tab-width = 2, unit = "  " }
diff --git a/runtime/queries/haskell/highlights.scm b/runtime/queries/haskell/highlights.scm
new file mode 100644
index 000000000..ecaa2d2cd
--- /dev/null
+++ b/runtime/queries/haskell/highlights.scm
@@ -0,0 +1,43 @@
+(variable) @variable
+(operator) @operator
+(exp_name (constructor) @constructor)
+(constructor_operator) @operator
+(module) @module_name
+(type) @type
+(type) @class
+(constructor) @constructor
+(pragma) @pragma
+(comment) @comment
+(signature name: (variable) @fun_type_name)
+(function name: (variable) @fun_name)
+(constraint class: (class_name (type)) @class)
+(class (class_head class: (class_name (type)) @class))
+(instance (instance_head class: (class_name (type)) @class))
+(integer) @literal
+(exp_literal (float)) @literal
+(char) @literal
+(con_unit) @literal
+(con_list) @literal
+(tycon_arrow) @operator
+(where) @keyword
+"module" @keyword
+"let" @keyword
+"in" @keyword
+"class" @keyword
+"instance" @keyword
+"data" @keyword
+"newtype" @keyword
+"family" @keyword
+"type" @keyword
+"import" @keyword
+"qualified" @keyword
+"as" @keyword
+"deriving" @keyword
+"via" @keyword
+"stock" @keyword
+"anyclass" @keyword
+"do" @keyword
+"mdo" @keyword
+"rec" @keyword
+"(" @paren
+")" @paren
diff --git a/runtime/queries/haskell/locals.scm b/runtime/queries/haskell/locals.scm
new file mode 100644
index 000000000..ad67fe43f
--- /dev/null
+++ b/runtime/queries/haskell/locals.scm
@@ -0,0 +1,4 @@
+(signature name: (variable)) @local.definition
+(function name: (variable)) @local.definition
+(pat_name (variable)) @local.definition
+(exp_name (variable)) @local.reference