Add Dart support

.gitmodules

@@ -274,3 +274,9 @@
 	branch = main
 	update = none
 	ignore = dirty
+[submodule "repos/dart"]
+	path = repos/dart
+	url = https://github.com/UserNobody14/tree-sitter-dart
+	branch = master
+	update = none
+	ignore = dirty

queries/dart/highlights.scm

@@ -0,0 +1,269 @@
+(dotted_identifier_list) @string
+
+; Methods
+; --------------------
+(super) @function
+
+; TODO: add method/call_expression to grammar and
+; distinguish method call from variable access
+(function_expression_body (identifier) @type)
+; ((identifier)(selector (argument_part)) @function)
+
+; NOTE: This query is a bit of a work around for the fact that the dart grammar doesn't
+; specifically identify a node as a function call
+(((identifier) @function (#match? @function "^_?[a-z]"))
+  . (selector . (argument_part))) @function
+
+; Annotations
+; --------------------
+(annotation
+  name: (identifier) @attribute)
+(marker_annotation
+  name: (identifier) @attribute)
+
+; Operators and Tokens
+; --------------------
+(template_substitution
+  "$" @punctuation.special
+  "{" @punctuation.special
+  "}" @punctuation.special
+) @none
+
+(template_substitution
+  "$" @punctuation.special
+  (identifier_dollar_escaped) @variable
+) @none
+
+(escape_sequence) @string.escape
+
+[
+ "@"
+ "=>"
+ ".."
+ "??"
+ "=="
+ "?"
+ ":"
+ "&&"
+ "%"
+ "<"
+ ">"
+ "="
+ ">="
+ "<="
+ "||"
+ (multiplicative_operator)
+ (increment_operator)
+ (is_operator)
+ (prefix_operator)
+ (equality_operator)
+ (additive_operator)
+] @operator
+
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+]  @punctuation.bracket
+
+; Delimiters
+; --------------------
+[
+  ";"
+  "."
+  ","
+] @punctuation.delimiter
+
+; Types
+; --------------------
+(class_definition
+  name: (identifier) @type)
+(constructor_signature
+  name: (identifier) @type)
+(scoped_identifier
+  scope: (identifier) @type)
+(function_signature
+  name: (identifier) @method)
+(getter_signature
+  (identifier) @method)
+(setter_signature
+  name: (identifier) @method)
+(enum_declaration
+  name: (identifier) @type)
+(enum_constant
+  name: (identifier) @type)
+(void_type) @type
+
+((scoped_identifier
+  scope: (identifier) @type
+  name: (identifier) @type)
+ (#match? @type "^[a-zA-Z]"))
+
+(type_identifier) @type
+
+(type_alias
+  (type_identifier) @type.definition)
+
+; Variables
+; --------------------
+; var keyword
+(inferred_type) @keyword
+
+((identifier) @type
+ (#match? @type "^_?[A-Z].*[a-z]")) ; catch Classes or IClasses not CLASSES
+
+("Function" @type)
+
+; properties
+(unconditional_assignable_selector
+  (identifier) @property)
+
+(conditional_assignable_selector
+  (identifier) @property)
+
+; assignments
+(assignment_expression
+  left: (assignable_expression) @variable)
+
+(this) @variable.builtin
+
+; Parameters
+; --------------------
+(formal_parameter
+    name: (identifier) @parameter)
+
+(named_argument
+  (label (identifier) @parameter))
+
+; Literals
+; --------------------
+[
+    (hex_integer_literal)
+    (decimal_integer_literal)
+    (decimal_floating_point_literal)
+    ; TODO: inaccessbile nodes
+    ; (octal_integer_literal)
+    ; (hex_floating_point_literal)
+] @number
+
+(symbol_literal) @symbol
+(string_literal) @string
+(true) @boolean
+(false) @boolean
+(null_literal) @constant.builtin
+
+(documentation_comment) @comment
+(comment) @comment
+
+; Keywords
+; --------------------
+[
+  "import"
+  "library"
+  "export"
+  "as"
+  "show"
+  "hide"
+] @include
+
+; Reserved words (cannot be used as identifiers)
+[
+    ; TODO:
+    ; "rethrow" cannot be targeted at all and seems to be an invisible node
+    ; TODO:
+    ; the assert keyword cannot be specifically targeted
+    ; because the grammar selects the whole node or the content
+    ; of the assertion not just the keyword
+    ; assert
+    (case_builtin)
+    "late"
+    "required"
+    "extension"
+    "on"
+    "class"
+    "enum"
+    "extends"
+    "in"
+    "is"
+    "new"
+    "super"
+    "with"
+] @keyword
+
+[
+  "return"
+  "yield"
+] @keyword.return
+
+
+; Built in identifiers:
+; alone these are marked as keywords
+[
+    "await"
+    "deferred"
+    "factory"
+    "get"
+    "implements"
+    "interface"
+    "library"
+    "operator"
+    "mixin"
+    "part"
+    "set"
+    "typedef"
+] @keyword
+
+[
+    (const_builtin)
+    (final_builtin)
+    "abstract"
+    "async"
+    "async*"
+    "covariant"
+    "dynamic"
+    "external"
+    "static"
+    "sync*"
+] @type
+
+; when used as an identifier:
+((identifier) @variable.builtin
+ (#any-of? @variable.builtin
+          "abstract"
+          "as"
+          "covariant"
+          "deferred"
+          "dynamic"
+          "export"
+          "external"
+          "factory"
+          "Function"
+          "get"
+          "implements"
+          "import"
+          "interface"
+          "library"
+          "operator"
+          "mixin"
+          "part"
+          "set"
+          "static"
+          "typedef"))
+
+["if" "else" "switch" "default"] @conditional
+
+[
+  "try"
+  "throw"
+  "catch"
+  "finally"
+  (break_statement)
+] @exception
+
+["do" "while" "continue" "for"] @repeat
+
+; Error
+(ERROR) @error

tree-sitter-langs.el

@@ -106,6 +106,7 @@ See `tree-sitter-langs-repos'."
                 (csharp-mode     . c-sharp)
                 (c++-mode        . cpp)
                 (d-mode          . d)
+                (dart-mode       . dart)
                 (css-mode        . css)
                 (elm-mode        . elm)
                 (elixir-mode     . elixir)