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helix-plus/runtime/queries/rust/highlights.scm

389 lines
5.9 KiB
Scheme

; -------
; Tree-Sitter doesn't allow overrides in regards to captures,
; though it is possible to affect the child node of a captured
; node. Thus, the approach here is to flip the order so that
; overrides are unnecessary.
; -------
; -------
; Types
; -------
; ---
; Primitives
; ---
(escape_sequence) @constant.character.escape
(primitive_type) @type.builtin
(boolean_literal) @constant.builtin.boolean
(integer_literal) @constant.numeric.integer
(float_literal) @constant.numeric.float
(char_literal) @constant.character
[
(string_literal)
(raw_string_literal)
] @string
[
(line_comment)
(block_comment)
] @comment
; ---
; Extraneous
; ---
(self) @variable.builtin
(enum_variant (identifier) @type.enum.variant)
(field_initializer
(field_identifier) @variable.other.member)
(shorthand_field_initializer
(identifier) @variable.other.member)
(shorthand_field_identifier) @variable.other.member
(lifetime
"'" @label
(identifier) @label)
(loop_label
(identifier) @type)
; ---
; Punctuation
; ---
[
"::"
"."
";"
","
] @punctuation.delimiter
[
"("
")"
"["
"]"
"{"
"}"
"#"
] @punctuation.bracket
(type_arguments
[
"<"
">"
] @punctuation.bracket)
(type_parameters
[
"<"
">"
] @punctuation.bracket)
(closure_parameters
"|" @punctuation.bracket)
; ---
; Variables
; ---
(let_declaration
pattern: [
((identifier) @variable)
((tuple_pattern
(identifier) @variable))
])
; It needs to be anonymous to not conflict with `call_expression` further below.
(_
value: (field_expression
value: (identifier)? @variable
field: (field_identifier) @variable.other.member))
(parameter
pattern: (identifier) @variable.parameter)
(closure_parameters
(identifier) @variable.parameter)
; -------
; Keywords
; -------
(for_expression
"for" @keyword.control.repeat)
((identifier) @keyword.control
(#match? @keyword.control "^yield$"))
"in" @keyword.control
[
"match"
"if"
"else"
] @keyword.control.conditional
[
"while"
"loop"
] @keyword.control.repeat
[
"break"
"continue"
"return"
"await"
] @keyword.control.return
"use" @keyword.control.import
(mod_item "mod" @keyword.control.import !body)
(use_as_clause "as" @keyword.control.import)
(type_cast_expression "as" @keyword.operator)
[
(crate)
(super)
"as"
"pub"
"mod"
"extern"
"impl"
"where"
"trait"
"for"
"unsafe"
"default"
"macro_rules!"
"async"
] @keyword
[
"struct"
"enum"
"union"
"type"
] @keyword.storage.type
"let" @keyword.storage
"fn" @keyword.function
(mutable_specifier) @keyword.storage.modifier.mut
(reference_type "&" @keyword.storage.modifier.ref)
(self_parameter "&" @keyword.storage.modifier.ref)
[
"static"
"const"
"ref"
"move"
"dyn"
] @keyword.storage.modifier
; TODO: variable.mut to highlight mutable identifiers via locals.scm
; -------
; Guess Other Types
; -------
((identifier) @constant
(#match? @constant "^[A-Z][A-Z\\d_]*$"))
; ---
; PascalCase identifiers in call_expressions (e.g. `Ok()`)
; are assumed to be enum constructors.
; ---
(call_expression
function: [
((identifier) @type.variant
(#match? @type.variant "^[A-Z]"))
(scoped_identifier
name: ((identifier) @type.variant
(#match? @type.variant "^[A-Z]")))
])
; ---
; Assume that types in match arms are enums and not
; tuple structs. Same for `if let` expressions.
; ---
(match_pattern
(scoped_identifier
name: (identifier) @constructor))
(tuple_struct_pattern
type: [
((identifier) @constructor)
(scoped_identifier
name: (identifier) @constructor)
])
(struct_pattern
type: [
((type_identifier) @constructor)
(scoped_type_identifier
name: (type_identifier) @constructor)
])
; ---
; Other PascalCase identifiers are assumed to be structs.
; ---
((identifier) @type
(#match? @type "^[A-Z]"))
; -------
; Functions
; -------
(call_expression
function: [
((identifier) @function)
(scoped_identifier
name: (identifier) @function)
(field_expression
field: (field_identifier) @function)
])
(generic_function
function: [
((identifier) @function)
(scoped_identifier
name: (identifier) @function)
(field_expression
field: (field_identifier) @function.method)
])
(function_item
name: (identifier) @function)
(function_signature_item
name: (identifier) @function)
; ---
; Macros
; ---
(meta_item
(identifier) @function.macro)
(attr_item
[
(identifier) @function.macro
(scoped_identifier
name: (identifier) @function.macro)
]
(token_tree (identifier) @function.macro)?)
(inner_attribute_item) @attribute
(macro_definition
name: (identifier) @function.macro)
(macro_invocation
macro: [
((identifier) @function.macro)
(scoped_identifier
name: (identifier) @function.macro)
]
"!" @function.macro)
(metavariable) @variable.parameter
(fragment_specifier) @type
; -------
; Operators
; -------
[
"*"
"'"
"->"
"=>"
"<="
"="
"=="
"!"
"!="
"%"
"%="
"&"
"&="
"&&"
"|"
"|="
"||"
"^"
"^="
"*"
"*="
"-"
"-="
"+"
"+="
"/"
"/="
">"
"<"
">="
">>"
"<<"
">>="
"<<="
"@"
".."
"..="
"'"
] @operator
; -------
; Paths
; -------
(use_declaration
argument: (identifier) @namespace)
(use_wildcard
(identifier) @namespace)
(extern_crate_declaration
name: (identifier) @namespace)
(mod_item
name: (identifier) @namespace)
(scoped_use_list
path: (identifier)? @namespace)
(use_list
(identifier) @namespace)
(use_as_clause
path: (identifier)? @namespace
alias: (identifier) @namespace)
; ---
; Remaining Paths
; ---
(scoped_identifier
path: (identifier)? @namespace
name: (identifier) @namespace)
(scoped_type_identifier
path: (identifier) @namespace)
; -------
; Remaining Identifiers
; -------
"?" @special
(type_identifier) @type
(identifier) @variable
(field_identifier) @variable.other.member