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Swift.sublime-syntax
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Swift.sublime-syntax
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%YAML 1.2
---
#
# This file is initially made based on and tested with Swift 5.6.
#
name: Swift
scope: source.swift
version: 2
first_line_match: |-
(?x:
^[#]!/.*\bswift # .swift with shebang
| ^[/]{2}[ ]swift-interface-format-version # .swiftinterface
)
file_extensions: [swift, swiftinterface]
variables:
# https://docs.swift.org/swift-book/ReferenceManual/zzSummaryOfTheGrammar.html
# [ Whitespace ] #
# whitespace_item: ([\x00\x0B\x0C])
line_break: (?:\x0D\x0A?|\x0A) # Line Feed (x0A), Carriage Return (x0D)
inline_space: (?:[\x09\x20]) # Space (x20), Horizontal Tab (x09)
whitespaces: '\x00\x0B\x0C\x0A\x09\x20'
# [ Identifier ] #
identifier_head: "A-Za-z_\
\\x{00A8}\\x{00AA}\\x{00AD}\\x{00AF}\
\\x{00B2}-\\x{00B5}\\x{00B7}-\\x{00BA}\\x{00BC}-\\x{00BE}\
\\x{00C0}-\\x{00D6}\\x{00D8}-\\x{00F6}\\x{00F8}-\\x{00FF}\
\\x{0100}-\\x{02FF}\\x{0370}-\\x{167F}\\x{1681}-\\x{180D}\
\\x{180F}-\\x{1DBF}\\x{1E00}-\\x{1FFF}\\x{200B}-\\x{200D}\
\\x{202A}-\\x{202E}\\x{203F}-\\x{2040}\\x{2054}\
\\x{2060}-\\x{206F}\\x{2070}-\\x{20CF}\\x{2100}-\\x{218F}\
\\x{2460}-\\x{24FF}\\x{2776}-\\x{2793}\\x{2C00}-\\x{2DFF}\
\\x{2E80}-\\x{2FFF}\\x{3004}-\\x{3007}\\x{3021}-\\x{302F}\
\\x{3031}-\\x{303F}\\x{3040}-\\x{D7FF}\\x{F900}-\\x{FD3D}\
\\x{FD40}-\\x{FDCF}\\x{FDF0}-\\x{FE1F}\\x{FE30}-\\x{FE44}\
\\x{FE47}-\\x{FFFD}\
\\x{10000}-\\x{1FFFD}\\x{20000}-\\x{2FFFD}\\x{30000}-\\x{3FFFD}\
\\x{40000}-\\x{4FFFD}\\x{50000}-\\x{5FFFD}\\x{60000}-\\x{6FFFD}\
\\x{70000}-\\x{7FFFD}\\x{80000}-\\x{8FFFD}\\x{90000}-\\x{9FFFD}\
\\x{A0000}-\\x{AFFFD}\\x{B0000}-\\x{BFFFD}\\x{C0000}-\\x{CFFFD}\
\\x{D0000}-\\x{DFFFD}\\x{E0000}-\\x{EFFFD}"
identifier_character: "0-9\
\\x{0300}-\\x{036F}\\x{1DC0}-\\x{1DFF}\
\\x{20D0}-\\x{20FF}\\x{FE20}-\\x{FE2F}\
{{identifier_head}}"
# [ Operator ] #
operator_head: "\\/=\\-+!*%<>&|^~?\
\\x{00A1}-\\x{00A7}\\x{00A9}\\x{00AB}\\x{00AC}\\x{00AE}\
\\x{00B0}-\\x{00B1}\\x{00B6}\\x{00BB}\\x{00BF}\\x{00D7}\\x{00F7}\
\\x{2016}-\\x{2017}\\x{2020}-\\x{2027}\\x{2030}-\\x{203E}\
\\x{2041}-\\x{2053}\\x{2055}-\\x{205E}\\x{2190}-\\x{23FF}\
\\x{2500}-\\x{2775}\\x{2794}-\\x{2BFF}\\x{2E00}-\\x{2E7F}\
\\x{3001}-\\x{3003}\\x{3008}-\\x{3020}\\x{3030}"
operator_character: "{{operator_head}}\
\\x{0300}-\\x{036F}\\x{1DC0}-\\x{1DFF}\\x{20D0}-\\x{20FF}\
\\x{FE00}-\\x{FE0F}\\x{FE20}-\\x{FE2F}\\x{E0100}-\\x{E01EF}"
# [ Patterns ] #
# Reserved words can be declared as an identifier if surrounded by '`'.
# Moreover at call-site, backticks can be omitted.
# However at file-level, this is not the case even if declared with arguments.
#
# Selected words from:
# swift/test/SourceKit/CodeComplete/complete_override.swift.response
# swift/utils/gyb_syntax_support/Token.py
reserved_word: |-
(?x:
(?=
(?:[^.`]|^)
\b(
actor|associatedtype|async|class|convenience|deinit|distributed|dynamic|
enum|extension|fileprivate|final|func|import|indirect|infix|init|
internal|isolated|lazy|let|mutating|nonisolated|nonmutating|open|operator|
override|postfix|precedencegroup|prefix|private|protocol|public|
required|static|struct|subscript|typealias|unowned|var|weak|
# Manually selected words
guard|if|switch|case
)\b(?!\s*[:(])
)
)
file_scope_word: (?=\b(import|protocol|extension|operator|precedencegroup)\b)
identifier: '[`]?\b[{{identifier_head}}][{{identifier_character}}]*?\b[`]?'
non_reserved_identifier: (?:(?!{{reserved_word}}){{identifier}})
identifier_lookahead: (?=\s+?{{identifier}})
operator: '[{{operator_head}}](?!/)(?:([{{operator_character}}]*)?([.])?)*'
dot_operator: (?![{{operator_character}}])[.][.{{operator_character}}]+
operator_negative_lookahead: (?![.{{operator_character}}])
access_levels: '\b(?:(private)|(fileprivate)|(internal)|(public)|(open))\b'
generic_clause_chars: '{{identifier_character}}{{whitespaces}}<:&\.,\s`>'
generic_clause_chars_call_site: '{{generic_clause_chars}}\?\!\(\)\[\]-'
#
# Aside from contexts in Prototypes, a few contexts have a variant with '-pop' suffix:
# - The ones with the suffix pop themselves (so for pushing).
# - The ones without the suffix don't pop itself (so for including).
# So '-pop' variants should not be included unless it is an intended behavior.
#
contexts:
### [ Main ] ##########################################################################
prototype:
- include: comments
main:
- meta_include_prototype: false
- match: ''
push: [statements, shebang]
shebang:
- meta_include_prototype: false
- match: ^\#!
scope: punctuation.definition.comment.swift
set:
- meta_include_prototype: false
- meta_scope: comment.line.shebang.swift
- match: \bswift\b
scope: constant.language.shebang.swift
- match: \n
pop: 1
- match: ^|(?=\S)
pop: 1
# Scope groupings are the rough categories to make a set of contexts reusable easily.
# Each basically belongs to the deepest scope it can appear.
statements:
- include: statements-scope-file
- include: statements-scope-type-declaration
- include: statements-scope-block
- include: statements-scope-parameter
- include: statements-scope-any
statements-scope-file:
- include: declaration-import
- include: declaration-protocol
- include: declaration-extension
- include: declaration-operator
- include: declaration-precedencegroup
statements-scope-type-declaration:
- include: declaration-init-deinit
- include: declaration-subscript
- include: modifier-class
- include: modifier-access-level
- include: modifier-actor-isolation
- include: modifier-reference-counting
statements-scope-block:
- include: declaration-constant
- include: declaration-variable
- include: declaration-typealias
- include: declaration-func
- include: declaration-enum
- include: declaration-struct
- include: declaration-class
- include: declaration-actor
- include: keyword-declarations
- include: modifier-storage
- include: modifier-mutation
- include: modifier-operator
statements-scope-parameter:
- include: modifier-for-parameter
statements-scope-any:
- include: types
- include: punctuations
- include: literals
# Keywords
- include: keyword-operators
- include: keyword-control-flows
# Modifiers
- include: modifier-types
# Variables
- include: variable-builtins
# Scoped Expressions
- include: parameter-list
- include: inner-code-block
- include: square-brackets
# Generics
- include: generic-parameter-clause-call
# [ TODO: Add dedicated where-clause matches for control-flows ] #
- include: generic-where-clause
# Operator
- include: operator-builtins
- include: operator-sigils
- include: operator-custom
# Compiler
- include: compiler-availability
- include: compiler-directive-clause
- include: compiler-literals
# Attribute
- include: attribute-builtins
- include: attribute-custom
# Support
- include: underscored-keyword
- include: identifier-support
- include: function-call
# Consume all the remaining identifiers
# - match: (?:{{non_reserved_identifier}})(?!\s*\()
# scope: invalid.illegal.swift # uncomment to see what's being consumed
### [ Prototypes ] ####################################################################
# Memo:
# When using ***-pop in Prototypes, every chars in a context has to be consumed until
# the position ***-pop is expected to start matching.
# Otherwise, it will pop halfway unexpectedly.
else-pop:
- match: (?=\S)
pop: 1
# To determine the cause of an unintended else-pop, a match below is quite useful:
# - match: '.'
# scope: invalid.swift
immediately-pop:
- match: ''
pop: 1
# access-level-pop, reserved-word-pop are included inside a scope to
# prevent unintended meta-scope nest and keep matching when closing bracket is missing
# by look-ahead words that cannot appear inside the scope.
# [ TODO ] #
# Those "invalid..." scopes should be commented out or removed in the end.
access-level-pop:
- match: ({{access_levels}})(?!\s*[:(])
scope: invalid.illegal.unexpected-word.swift
pop: 1
reserved-word-pop:
- match: ({{reserved_word}})
scope: invalid.illegal.unexpected-word.swift
pop: 1
reserved-word-pop-2:
- match: ({{reserved_word}})
scope: invalid.illegal.unexpected-word.swift
pop: 2
file-scope-word-pop:
- match: ({{file_scope_word}})
scope: invalid.illegal.unexpected-word.swift
pop: 1
identifier-consumer:
- match: '{{identifier}}'
whitespace-consumer:
- match: '[ ]'
### [ Comments ] ######################################################################
comments:
- include: comment-line-doc
- include: comment-line
- include: comment-block-doc
- include: comment-block
comment-line-doc:
- match: ^\s*(///)
captures:
1: punctuation.definition.comment.begin.swift
push:
- meta_scope: comment.line.documentation.swift
- match: $
pop: 1
- match: (`[^`]+?`)
scope: markup.raw.inline.swift
- match: (\s*-\s+)(.+)(?=\:[ ])
captures:
1: markup.list.unnumbered.bullet.swift punctuation.definition.list_item.swift
2: markup.bold.swift punctuation.definition.annotation.swift
comment-line:
- match: (//)\s*(?:(TODO.*|FIXME.*))$
captures:
0: comment.line.double-slash.swift
1: punctuation.definition.comment.begin.swift
2: meta.toc-list.todo.swift comment.line.swift markup.bold.swift
- match: (//)\s*(?:(MARK:.*)|.*)$
captures:
0: comment.line.double-slash.swift
1: punctuation.definition.comment.begin.swift
2: meta.toc-list.swift comment.line.swift markup.bold.swift
comment-block-doc:
- match: /\*\*
scope: punctuation.definition.comment.begin.swift
push:
- meta_scope: comment.block.documentation.swift
- match: .*\*/
scope: punctuation.definition.comment.end.swift
pop: 1
- match: /\*.*\*/
comment-block:
- match: /\*
scope: punctuation.definition.comment.begin.swift
push:
- meta_scope: comment.block.swift
- match: .*\*/
scope: punctuation.definition.comment.end.swift
pop: 1
- match: /\*.*\*/
### [ Punctuations ] ##################################################################
# ':' is not generically consumed here to distinguish
# type-annotation, conformance, key-value, ternary-conditional and others.
punctuations:
- match: \.{{operator_negative_lookahead}}
scope: punctuation.accessor.dot.swift
- match: ','
scope: punctuation.separator.continuation.swift
- match: ->
scope: punctuation.separator.annotation.return-arrow.swift
- match: ';'
scope: punctuation.terminator.swift
- match: \(\)
scope: variable.other.tuple.swift
### [ Literals ] ######################################################################
literals:
- include: floating-point-literal
- include: integer-literal
- include: extended-string-literal
- include: string-literal
- include: boolean-literal
- include: nil-literal
integer-literal:
# binary-literal
- match: \b(0b)([01][01_]*)\b
captures:
0: meta.number.integer.binary.swift
1: constant.numeric.base.swift
2: constant.numeric.value.swift
# octal-literal
- match: \b(0o)([0-7][0-7_]*)\b
captures:
0: meta.number.integer.octal.swift
1: constant.numeric.base.swift
2: constant.numeric.value.swift
# hexadecimal-literal
- match: \b(0x)([0-9a-fA-F][0-9a-fA-F_]*)\b
captures:
0: meta.number.integer.hexadecimal.swift
1: constant.numeric.base.swift
2: constant.numeric.value.swift
# decimal-literal
- match: \b[0-9][0-9_]*\b
scope: meta.number.integer.decimal.swift constant.numeric.value.swift
floating-point-literal:
# floating-point-literal without decimal-fraction
- match: |-
(?x:\b
([0-9][0-9_]*[eE][-+]?)
(?!\.)
([0-9][0-9_]*)
\b)
captures:
0: meta.number.float.decimal.swift
1: constant.numeric.value.swift
2: constant.numeric.value.swift
# floating-point-literal with decimal-fraction
- match: |-
(?x:\b
([0-9][0-9_]*)
(\.)
([0-9][0-9_]*)
([eE][-+]?[0-9][0-9_]*)?
\b)
captures:
0: meta.number.float.decimal.swift
1: constant.numeric.value.swift
2: punctuation.separator.decimal.swift
3: constant.numeric.value.swift
4: constant.numeric.value.swift
# hexadecimal-literal
- match: |-
(?x:\b
(0x[0-9a-fA-F][0-9a-fA-F_]*)
(\.)?
([0-9a-fA-F][0-9a-fA-F_]*)?
([pP][-+]?[0-9][0-9_]*)
\b)
captures:
0: meta.number.float.hexadecimal.swift
1: constant.numeric.base.swift
2: punctuation.separator.decimal.swift
3: constant.numeric.value.swift
4: constant.numeric.value.swift
string-literal:
# multiline-string-literal
- match: (""")(.*?(?="""|$))
captures:
1: punctuation.definition.string.begin.swift
2: invalid.illegal.content-must-begin-on-a-new-line.swift
push:
- meta_include_prototype: false
- meta_scope: meta.string.swift string.quoted.double.block.swift
- match: ([^{{inline_space}}]*)(""")
captures:
1: invalid.illegal.closing-delimiter-must-begin-on-a-new-line.swift
2: punctuation.definition.string.end.swift
pop: 1
- include: string-literal-content
- match: \\{{inline_space}}*{{line_break}}
scope: punctuation.separator.continuation.line.swift
# [ TODO: escaped newline at the last line is not allowed ] #
# How can we capture \ on the last line, before the closing delimiter?
# Or maybe this is overkill as a syntax's feature.
# \ is invalid if it's not at EOL
- match: (?=[^\s]+?\s*\\(?:\s|\s*[^0\\tnru"'(\s]+?))(?!\s*$)
push:
- include: string-literal-content
- match: \\
scope: invalid.illegal.invalid-escape-sequence.swift
pop: 1
# string-literal
- match: \"
scope: punctuation.definition.string.begin.swift
push:
- meta_include_prototype: false
- meta_scope: meta.string.swift string.quoted.double.swift
- match: \"
scope: punctuation.definition.string.end.swift
pop: 1
- match: '{{line_break}}'
scope: invalid.illegal.unterminated-string-literal.swift
pop: 1
- include: string-literal-content
- match: \\
scope: invalid.illegal.invalid-escape-sequence.swift
string-literal-content:
# escaped-character
- match: \\[0\\tnr"']
scope: constant.character.escape.swift
# unicode-scalar-digits
- match: \\u\{([0-9a-fA-F]{1,8})\}
scope: constant.character.escape.unicode.swift
captures:
1: constant.numeric.value.swift
# interpolated-text-item
- match: \\\(
scope: punctuation.section.interpolation.begin.swift
push:
- clear_scopes: 1
- meta_scope: meta.interpolation.swift
- include: statements-scope-any
- match: \)
scope: punctuation.section.interpolation.end.swift
pop: 1
extended-string-literal:
# multiline extended-string-literal
- match: (\#+)(""")(.*?(?="""|$))
captures:
1: punctuation.definition.annotation.begin.swift
2: punctuation.definition.string.begin.swift
3: invalid.illegal.content-must-begin-on-a-new-line.swift
push:
- meta_include_prototype: false
- meta_scope: meta.string.swift string.quoted.double.block.swift
- match: ([^{{inline_space}}]*)(""")(#+)
captures:
1: invalid.illegal.closing-delimiter-must-begin-on-a-new-line.swift
2: punctuation.definition.string.end.swift
3: punctuation.definition.annotation.end.swift
pop: 1
- include: extended-string-literal-content
- match: '\\{{inline_space}}*{{line_break}}'
scope: punctuation.separator.continuation.line.swift
- match: (?=[^\s]+?\s*\\#\s*[^0\\tnru"'(\s]+?)(?!\s*$)
push:
- match: \\#
scope: invalid.illegal.invalid-escape-sequence.swift
pop: 1
# extended-string-literal
- match: (#+)(")
captures:
1: punctuation.definition.annotation.begin.swift
2: punctuation.definition.string.begin.swift
push:
- meta_scope: meta.string.swift string.quoted.double.swift
- match: (")(#+)
captures:
1: punctuation.definition.string.end.swift
2: punctuation.definition.annotation.end.swift
pop: 1
- match: '{{line_break}}'
scope: invalid.illegal.unterminated-string-literal.swift
pop: 1
- include: extended-string-literal-content
extended-string-literal-content:
# escaped-character
- match: \\#+[0\\tnr"']
scope: constant.character.escape.swift
# unicode-scalar-digits
- match: \\#+u\{([0-9a-fA-F]{1,8})\}
scope: constant.character.escape.unicode.swift
captures:
1: constant.numeric.value.swift
# interpolated-text-item
- match: \\#+\(
scope: punctuation.section.interpolation.begin.swift
push:
- clear_scopes: 1
- meta_scope: meta.interpolation.swift
- include: statements-scope-any
- match: \)
scope: punctuation.section.interpolation.end.swift
pop: 1
boolean-literal:
- match: \b(true|false)\b
scope: constant.language.boolean.swift
nil-literal:
- match: \bnil\b
scope: constant.language.null.swift
### [ Operators ] #####################################################################
operator-builtins:
# swift/stdlib/public/core/Policy.swift
- match: |-
(?x:
(?:
# SIMD
(\.(?:==|!=|<(?!<)=?|>(?!>)=?))
| (\.(?:[&|^]=?))
| (\.!)
# Masked Arithmetic (with Assignment)
| (&[+\-*]=?)
# Arithmetic (with Assignment)
| ([+\-*\/%]=?)
# Pattern Matching
| (~=)
# Logical
| (!(?=[^=)\]\s,])(?!$)|&&|\|\|)
# Bit Shift (with Assignment)
| (&?(?:<<|>>)=?)
# Bitwise (with Assignment)
| ([&|^]=?)
| (~)
# Identity
| (===|!==)
# Comparison
| (==|!=|<(?!<)=?|>(?!>)=?)
# Range Expressions
| (\.\.[.<])
# Nil-Coalescing
| \s(\?\?)
)
{{operator_negative_lookahead}}
)
captures:
1: keyword.operator.simd.comparison.swift
2: keyword.operator.simd.bitwise.swift
3: keyword.operator.simd.logical.swift
4: keyword.operator.arithmetic.overflow.swift
5: keyword.operator.arithmetic.swift
6: keyword.operator.pattern-matching.swift
7: keyword.operator.logical.swift
8: keyword.operator.bitshift.swift
9: keyword.operator.bitwise.swift
10: keyword.operator.bitwise.swift
11: keyword.operator.identity.swift
12: keyword.operator.comparison.swift
13: keyword.operator.range.swift
14: keyword.operator.nil-coalescing.swift
# Unary
- match: ([+\-])(?=\.?{{identifier}})
captures:
1: keyword.operator.arithmetic.swift
# conditional-operator (ternary conditional)
# Note: without a preceded \s, it'll be interpreted as an optional operator.
- match: (\s+|^)(?=\?(?!\?))
push:
- match: \?
scope: keyword.operator.ternary-conditional.swift
# Consume ':' with statements first - then remained : is ternary.
# [ TODO: Not checked comprehensively yet, there might be ':' without any scope. ] #
- include: statements-scope-any
- match: ':'
scope: keyword.operator.ternary-conditional.swift
pop: 1
- include: reserved-word-pop
# Optional
- match: (?:(\?)|(\!))(?=\s*[?!.,:()\[\];\w]|\s|$)
captures:
1: keyword.operator.optional.swift
2: keyword.operator.implicitly-unwrapped-optional.swift
# Assignment
- match: =
scope: keyword.operator.assignment.swift
operator-sigils:
# implicit-parameter-name:
- match: \$([0-9]+)\b
captures:
0: keyword.operator.implicit-parameter-name.swift
1: meta.number.integer.decimal.swift constant.numeric.value.swift
# key-path-expression
- match: (\\)(?=.*?\.)
captures:
1: keyword.operator.key-path.swift
# property-wrapper-projection
- match: (\$)(?={{identifier}})
captures:
1: keyword.operator.property-wrapper-projection.swift
operator-custom:
# operator
- match: '{{operator}}'
captures:
0: variable.function.custom-operator.swift
2: invalid.illegal.dot-not-allowed.swift
# dot-operator
- match: '{{dot_operator}}'
scope: variable.function.custom-dot-operator.swift
### [ Variables ] #####################################################################
variable-builtins:
# self-expression, superclass-expression
- match: \b(self|super)\b
scope: variable.language.swift
# wildcard-expression
- match: (?:^|\s)(\_)(?=[\s,:])
captures:
1: variable.language.wildcard-expression.swift
### [ Types ] #########################################################################
types:
# protocol-composition-type
# - match: |-
# (?x:
# (?=
# # Weak speculation that both protocols are title-cased, so it's
# # not a bit wise expression (variables should begin lower-cased).
# [A-Z][{{identifier_character}}<&>]*
# \s*&\s*
# [A-Z][{{identifier_character}}<&>]*
# )
# )
# push:
# - match: \&
# scope: keyword.operator.protocol-composition-type.swift
# pop: 1
# - include: generic-parameter-clause-declaration
# - include: identifier-support
# metatype-type
- match: (\.)\b(?:(Type)|(Protocol))\b(?!`)
captures:
1: punctuation.accessor.dot.swift
2: storage.type.metatype.type.swift
3: storage.type.metatype.protocol.swift
# any-type
- match: \bAny\b(?!`)
scope: storage.type.any.swift
# self-type
- match: \bSelf\b(?!`)
scope: storage.type.self.swift
### [ Keywords ] ######################################################################
keyword-operators:
# try-operator
- match: \b(try(?![?!]))\b|(try)(?=\?)|\b(try)\b(?=\!)
captures:
1: keyword.control.exception.try.swift
2: keyword.control.exception.try.optional.swift
3: keyword.control.exception.try.forced.swift
# await-operator
- match: (\bawait\b\s+\btry\b[!?]?)|\b(await)\b
captures:
1: invalid.illegal.try-must-precede-await.swift
2: keyword.control.flow.await.swift
# type-casting-operator (is, as, as?, as!)
- match: \b(is)\b|\b(as)\b(?![?!])|(as)(?=\?)|\b(as)\b(?=\!)
captures:
1: keyword.operator.word.type-casting.is.swift
2: keyword.operator.word.type-casting.as.swift
3: keyword.operator.word.type-casting.as.optional.swift
4: keyword.operator.word.type-casting.as.forced.swift
keyword-control-flows:
# loop-statement
- match: (?:{{identifier}}\s*(:)\s*)?\b(for)\b
captures:
1: punctuation.separator.labeled-statement.swift
2: keyword.control.loop.for.swift
push:
- match: \bin\b
scope: keyword.control.loop.in.swift
pop: 1
- include: statements-scope-any
- include: identifier-consumer
- include: whitespace-consumer
- include: else-pop
- match: (?:{{identifier}}\s*(:)\s*)?\b(?:(while)|(repeat))\b
captures:
1: punctuation.separator.labeled-statement.swift
2: keyword.control.loop.while.swift
3: keyword.control.loop.repeat.swift
# branch-statement
- match: (?:{{identifier}}\s*(:)\s*)?\b(if)\b
captures:
1: punctuation.separator.labeled-statement.swift
2: keyword.control.conditional.if.swift
- match: \b(?:(else\s+if)|(else))\b
captures:
1: keyword.control.conditional.elseif.swift
2: keyword.control.conditional.else.swift
# guard-statement
- match: \b(guard)\b
captures:
1: keyword.control.conditional.guard.swift
# switch-statement
- match: |-
(?x:
(?:{{identifier}}\s*(:)\s*)?
\b(switch)\b(?=(\s+[{{identifier_character}}.]+|\s*\())
)
captures:
1: punctuation.separator.labeled-statement.swift
2: keyword.control.conditional.switch.swift
push:
- include: parameter-list
- include: punctuations
- match: \{
scope: punctuation.section.block.begin.swift
set:
- meta_scope: meta.block.swift meta.switch.swift
- match: \}
scope: punctuation.section.block.end.swift
pop: 1
- match: \b(?:(case)|(default))\b
captures:
1: keyword.control.conditional.case.swift
2: keyword.control.conditional.default.swift
push:
- match: '='
scope: keyword.operator.assignment.swift
pop: 1
- match: ':'
scope: punctuation.separator.swift
pop: 1
- match: \b(?:(var)|(let))\b
captures:
1: keyword.declaration.var.swift
2: keyword.declaration.let.swift
- match: (\.)({{identifier}})
captures:
1: punctuation.accessor.dot.swift
2: constant.other.swift
- match: \bwhere\b
scope: keyword.control.conditional.where.swift
- include: parameter-list
- include: punctuations
- include: statements-scope-block
- include: statements-scope-any
- include: statements-scope-block
- include: statements-scope-any
- include: identifier-consumer
- include: else-pop
- match: (?:{{identifier}}\s*(:)\s*)?\b(switch)\b
captures:
1: punctuation.separator.labeled-statement.swift
2: keyword.control.conditional.switch.swift
- match: \bdefault\b
scope: keyword.control.conditional.default.swift
- match: \b(case)\b(?:\s+(\.)({{identifier}})(:))?
captures:
1: keyword.control.conditional.case.swift
2: punctuation.accessor.dot.swift
3: constant.other.swift
4: punctuation.separator.swift
# control-transfer-statement
- match: \b(?:(break)|(continue)|(fallthrough)|(return)|(throw))\b
captures:
1: keyword.control.flow.break.swift
2: keyword.control.flow.continue.swift
3: keyword.control.flow.fallthrough.swift
4: keyword.control.flow.return.swift
5: keyword.control.flow.throw.swift
# defer-statement
- match: \b(defer)\b
captures:
1: keyword.control.flow.defer.swift
# do-statement
- match: (?:{{identifier}}\s*(:)\s*)?\b(do)\b
captures:
1: punctuation.separator.labeled-statement.swift
2: keyword.control.flow.do.swift
- match: \bcatch\b
scope: keyword.control.exception.catch.swift
# Keywords used in declarations
keyword-declarations:
- match: \bthrows\b
scope: keyword.declaration.throws.swift
- match: \brethrows\b
scope: keyword.declaration.rethrows.swift
- match: \basync\b
scope: keyword.declaration.async.swift
# getter-setter
- match: \bget\b
scope: keyword.declaration.get.swift
- match: \bset\b
scope: keyword.declaration.set.swift
# willSet-didSet
- match: \bwillSet\b
scope: keyword.declaration.willSet.swift
- match: \bdidSet\b
scope: keyword.declaration.didSet.swift
# enumeration
- match: \bindirect\b
scope: storage.modifier.indirect.swift
# - match: \bcase\b
# scope: keyword.declaration.case.swift
# protocol
- match: \b(associatedtype)\b(?:\s+({{identifier}})\s*(:))?
captures:
1: keyword.declaration.associatedtype.swift
2: support.other.associatedtype.swift
3: punctuation.separator.annotation.type-annotation.swift
### [ Modifiers ] #####################################################################
modifier-class:
- match: |-
(?x:
\b(?:
(?:(class)(?=\s+(?:var|func)\b))
| (convenience) | (dynamic) | (final)
| (optional) | (override) | (required)
)\b
(?=\s|$)
)
captures:
1: storage.modifier.class.swift
2: storage.modifier.convenience.swift
3: storage.modifier.dynamic.swift
4: storage.modifier.final.swift
5: storage.modifier.optional.swift
6: storage.modifier.override.swift # also for protocol
7: storage.modifier.required.swift
modifier-storage:
- match: (?:\b(lazy)\b|\b(static)\b)(?=\s|$)
captures:
1: storage.modifier.lazy.swift
2: storage.modifier.static.swift
modifier-access-level:
- match: |-
(?x:
\b(?:{{access_levels}})\b
(?:\s*(\()\s*\b(?:(set))\b\s*(\)))?
(?=\s|$)
)
captures:
1: storage.modifier.access-level.private.swift
2: storage.modifier.access-level.fileprivate.swift
3: storage.modifier.access-level.internal.swift
4: storage.modifier.access-level.public.swift
5: storage.modifier.access-level.open.swift
6: punctuation.section.parens.begin.swift
7: variable.parameter.setter-access-level.swift
8: punctuation.section.parens.end.swift
modifier-mutation:
- match: \b(?:(mutating)|(nonmutating))\b(?=\s|$)
captures:
1: storage.modifier.mutation.mutating.swift
2: storage.modifier.mutation.nonmutating.swift
modifier-actor-isolation:
- match: \b(nonisolated)\b(?=\s|$)
captures:
1: storage.modifier.actor-isolation.nonisolated.swift
modifier-reference-counting:
- match: \bunowned\b
scope: storage.modifier.unowned.swift
push:
- match: \)
scope: punctuation.section.parens.end.swift
pop: 1
- match: \(
scope: punctuation.section.parens.begin.swift
- match: (?:un)?safe
scope: constant.language.attribute-option.swift
- include: else-pop
- match: \bweak\b
scope: storage.modifier.weak.swift
modifier-types:
# opaque-type
- match: (?:\s|^)(some)(?=\s)
captures:
1: storage.modifier.opaque.swift
# existential-type
- match: (?:\s|^)(any)(?=\s)
captures:
1: storage.modifier.existential.swift
modifier-operator:
- match: \b(?:(prefix)|(postfix)|(infix))\b
captures:
1: storage.modifier.operator.prefix.swift
2: storage.modifier.operator.postfix.swift
3: storage.modifier.operator.infix.swift
modifier-for-parameter:
# in-out-expression
- match: |-
(?x:
\b(inout)\b
| (&)(?={{identifier}})
)
captures:
1: storage.modifier.inout.swift # Valid only inside parens as an argument type
2: keyword.operator.inout.swift # Valid only inside parens at call-site
# actor-isolation
- match: \b(isolated)\b(?=\s|$)
captures:
1: storage.modifier.actor-isolation.isolated.swift
### [ Scoped Expressions ] ############################################################
parameter-list:
- match: \(
scope: punctuation.section.parens.begin.swift
push:
- meta_scope: meta.function.parameters.swift
- match: \)
scope: punctuation.section.parens.end.swift
pop: 1
- include: parameter-list-body
# - match: \s
# - match: \w
# - match: '[^)]'
# scope: invalid.illegal.missing-closing-paren.swift
# pop: 1
parameter-list-pop:
- include: parameter-list
- include: immediately-pop
# - match: (?=\s)
# pop: 1
# - include: else-pop