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-rw-r--r--runtime/queries/elixir/highlights.scm310
1 files changed, 198 insertions, 112 deletions
diff --git a/runtime/queries/elixir/highlights.scm b/runtime/queries/elixir/highlights.scm
index 6bf93a21..08e09f37 100644
--- a/runtime/queries/elixir/highlights.scm
+++ b/runtime/queries/elixir/highlights.scm
@@ -1,125 +1,213 @@
-["when" "and" "or" "not in" "not" "in" "fn" "do" "end" "catch" "rescue" "after" "else"] @keyword
+; The following code originates mostly from
+; https://github.com/elixir-lang/tree-sitter-elixir, with minor edits to
+; align the captures with helix. The following should be considered
+; Copyright 2021 The Elixir Team
+;
+; Licensed under the Apache License, Version 2.0 (the "License");
+; you may not use this file except in compliance with the License.
+; You may obtain a copy of the License at
+;
+; https://www.apache.org/licenses/LICENSE-2.0
+;
+; Unless required by applicable law or agreed to in writing, software
+; distributed under the License is distributed on an "AS IS" BASIS,
+; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+; See the License for the specific language governing permissions and
+; limitations under the License.
+
+; Reserved keywords
+
+["when" "and" "or" "not" "in" "not in" "fn" "do" "end" "catch" "rescue" "after" "else"] @keyword
+
+; Operators
+
+; * doc string
+(unary_operator
+ operator: "@" @comment.block.documentation
+ operand: (call
+ target: (identifier) @comment.block.documentation.__attribute__
+ (arguments
+ [
+ (string) @comment.block.documentation
+ (charlist) @comment.block.documentation
+ (sigil
+ quoted_start: _ @comment.block.documentation
+ quoted_end: _ @comment.block.documentation) @comment.block.documentation
+ (boolean) @comment.block.documentation
+ ]))
+ (#match? @comment.block.documentation.__attribute__ "^(moduledoc|typedoc|doc)$"))
+
+; * module attribute
+(unary_operator
+ operator: "@" @variable.property
+ operand: [
+ (identifier) @variable.property
+ (call
+ target: (identifier) @variable.property)
+ (boolean) @variable.property
+ (nil) @variable.property
+ ])
+
+; * capture operator
+(unary_operator
+ operator: "&"
+ operand: [
+ (integer) @operator
+ (binary_operator
+ left: [
+ (call target: (dot left: (_) right: (identifier) @function))
+ (identifier) @function
+ ] operator: "/" right: (integer) @operator)
+ ])
+
+(operator_identifier) @operator
+
+(unary_operator
+ operator: _ @operator)
+
+(binary_operator
+ operator: _ @operator)
+
+(dot
+ operator: _ @operator)
+
+(stab_clause
+ operator: _ @operator)
+
+; Literals
+
+(nil) @constant.builtin
+
+(boolean) @constant.builtin.boolean
-[(true) (false) (nil)] @constant.builtin
+[
+ (integer)
+ (float)
+] @number
+
+(alias) @type
-(keyword
- [(keyword_literal)
- ":"] @tag)
+(call
+ target: (dot
+ left: (atom) @type))
-(keyword
- (keyword_string
- [(string_start)
- (string_content)
- (string_end)] @tag))
+(char) @constant.character
-[(atom_literal)
- (atom_start)
- (atom_content)
- (atom_end)] @tag
+; Quoted content
-[(comment)
- (unused_identifier)] @comment
+(interpolation "#{" @escape "}" @escape) @embedded
(escape_sequence) @escape
-(call function: (function_identifier) @keyword
- (#match? @keyword "^(defmodule|defexception|defp|def|with|case|cond|raise|import|require|use|defmacrop|defmacro|defguardp|defguard|defdelegate|defstruct|alias|defimpl|defprotocol|defoverridable|receive|if|for|try|throw|unless|reraise|super|quote|unquote|unquote_splicing)$"))
-
-(call function: (function_identifier) @keyword
- [(call
- function: (function_identifier) @function
- (arguments
- [(identifier) @variable.parameter
- (_ (identifier) @variable.parameter)
- (_ (_ (identifier) @variable.parameter))
- (_ (_ (_ (identifier) @variable.parameter)))
- (_ (_ (_ (_ (identifier) @variable.parameter))))
- (_ (_ (_ (_ (_ (identifier) @variable.parameter)))))]))
- (binary_op
- left:
- (call
- function: (function_identifier) @function
- (arguments
- [(identifier) @variable.parameter
- (_ (identifier) @variable.parameter)
- (_ (_ (identifier) @variable.parameter))
- (_ (_ (_ (identifier) @variable.parameter)))
- (_ (_ (_ (_ (identifier) @variable.parameter))))
- (_ (_ (_ (_ (_ (identifier) @variable.parameter)))))]))
+[
+ (atom)
+ (quoted_atom)
+ (keyword)
+ (quoted_keyword)
+] @string.special.symbol
+
+[
+ (string)
+ (charlist)
+] @string
+
+; Note that we explicitly target sigil quoted start/end, so they are not overridden by delimiters
+
+(sigil
+ (sigil_name) @__name__
+ quoted_start: _ @string
+ quoted_end: _ @string
+ (#match? @__name__ "^[sS]$")) @string
+
+(sigil
+ (sigil_name) @__name__
+ quoted_start: _ @string.regex
+ quoted_end: _ @string.regex
+ (#match? @__name__ "^[rR]$")) @string.regex
+
+(sigil
+ (sigil_name) @__name__
+ quoted_start: _ @string.special
+ quoted_end: _ @string.special) @string.special
+
+; Calls
+
+; * definition keyword
+(call
+ target: (identifier) @keyword
+ (#match? @keyword "^(def|defdelegate|defexception|defguard|defguardp|defimpl|defmacro|defmacrop|defmodule|defn|defnp|defoverridable|defp|defprotocol|defstruct)$"))
+
+; * kernel or special forms keyword
+(call
+ target: (identifier) @keyword
+ (#match? @keyword "^(alias|case|cond|else|for|if|import|quote|raise|receive|require|reraise|super|throw|try|unless|unquote|unquote_splicing|use|with)$"))
+
+; * function call
+(call
+ target: [
+ ; local
+ (identifier) @function
+ ; remote
+ (dot
+ right: (identifier) @function)
+ ])
+
+; * just identifier in function definition
+(call
+ target: (identifier) @keyword
+ (arguments
+ [
+ (identifier) @function
+ (binary_operator
+ left: (identifier) @function
operator: "when")
- (binary_op
- left: (identifier) @variable.parameter
- operator: _ @function
- right: (identifier) @variable.parameter)]
- (#match? @keyword "^(defp|def|defmacrop|defmacro|defguardp|defguard|defdelegate)$"))
-
-(call (function_identifier) @keyword
- [(call
- function: (function_identifier) @function)
- (identifier) @function
- (binary_op
- left:
- [(call
- function: (function_identifier) @function)
- (identifier) @function]
- operator: "when")]
- (#match? @keyword "^(defp|def|defmacrop|defmacro|defguardp|defguard|defdelegate)$"))
-
-(anonymous_function
- (stab_expression
- left: (bare_arguments
- [(identifier) @variable.parameter
- (_ (identifier) @variable.parameter)
- (_ (_ (identifier) @variable.parameter))
- (_ (_ (_ (identifier) @variable.parameter)))
- (_ (_ (_ (_ (identifier) @variable.parameter))))
- (_ (_ (_ (_ (_ (identifier) @variable.parameter)))))])))
-
-(unary_op
- operator: "@"
- (call (identifier) @attribute
- (heredoc
- [(heredoc_start)
- (heredoc_content)
- (heredoc_end)] @doc))
- (#match? @attribute "^(doc|moduledoc)$"))
-
-(module) @type
-
-(unary_op
- operator: "@" @attribute
- [(call
- function: (function_identifier) @attribute)
- (identifier) @attribute])
-
-(unary_op
- operator: _ @operator)
-
-(binary_op
- operator: _ @operator)
-
-(heredoc
- [(heredoc_start)
- (heredoc_content)
- (heredoc_end)] @string)
-
-(string
- [(string_start)
- (string_content)
- (string_end)] @string)
-
-(sigil_start) @string.special
-(sigil_content) @string
-(sigil_end) @string.special
-
-(interpolation
- "#{" @punctuation.special
- "}" @punctuation.special)
+ ])
+ (#match? @keyword "^(def|defdelegate|defguard|defguardp|defmacro|defmacrop|defn|defnp|defp)$"))
+
+; * pipe into identifier (definition)
+(call
+ target: (identifier) @keyword
+ (arguments
+ (binary_operator
+ operator: "|>"
+ right: (identifier) @variable))
+ (#match? @keyword "^(def|defdelegate|defguard|defguardp|defmacro|defmacrop|defn|defnp|defp)$"))
+
+; * pipe into identifier (function call)
+(binary_operator
+ operator: "|>"
+ right: (identifier) @function)
+
+; Identifiers
+
+; * special
+(
+ (identifier) @constant.builtin
+ (#match? @constant.builtin "^(__MODULE__|__DIR__|__ENV__|__CALLER__|__STACKTRACE__)$")
+)
+
+; * unused
+(
+ (identifier) @comment
+ (#match? @comment "^_")
+)
+
+; * regular
+(identifier) @variable
+
+; Comment
+
+(comment) @comment
+
+; Punctuation
+
+[
+ "%"
+] @punctuation
[
","
- "->"
- "."
+ ";"
] @punctuation.delimiter
[
@@ -133,6 +221,4 @@
">>"
] @punctuation.bracket
-(special_identifier) @function.special
-
(ERROR) @warning