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let number = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let 4ZOUBY5SFF
let number = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let
let number = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let
let number = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let
let number = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let
let number = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let
if let number = number { } ؔͷҾ ϩʔΧϧม 0QUJPOBM#JOEJOH func () { let number = 0 } CodeBlockItem PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax number VariableDeclSyntax OptionalBindingConditionSyntax let IdentifierPatternSyntax number ConditionElementSyntax func round(number: Int) { ... } FunctionParameterSyntax number FunctionParameterListSyntax πϦʔͷܗΛߏతʹϚονϯά͢Δ
SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let let number = 100
@nonobjc public let number: Int = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let AttributeListSyntax @ IdentifierTypeSyntax nonobjc DeclModifierListSyntax DeclModifierSyntax public
@nonobjc public let number: Int = 100 SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let AttributeListSyntax @ IdentifierTypeSyntax nonobjc DeclModifierListSyntax DeclModifierSyntax public
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SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let let number = 100 5PLFO
SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let let number = 100 5PLFO
SourceFileSyntax CodeBlockItemListSyntax CodeBlockItemSyntax VariableDeclSyntax PatternBindingListSyntax PatternBindingSyntax IdentifierPatternSyntax InitializerClauseSyntax IntegerLiteralExprSyntax endOfFile number = 100 let let number = 100 5PLFO
4ZOUBY7JTJUPS open class SyntaxVisitor { public init(viewMode: SyntaxTreeViewMode) public func walk(_ node: some SyntaxProtocol) open func visit(_ node: AccessorBlockSyntax) -> SyntaxVisitorContinueKind open func visitPost(_ node: AccessorBlockSyntax) open func visit(_ node: AccessorDeclSyntax) -> SyntaxVisitorContinueKind open func visitPost(_ node: AccessorDeclSyntax) ... }
4ZOUBY7JTJUPS open class SyntaxVisitor { public init(viewMode: SyntaxTreeViewMode) public func walk(_ node: some SyntaxProtocol) open func visit(_ node: AccessorBlockSyntax) -> SyntaxVisitorContinueKind open func visitPost(_ node: AccessorBlockSyntax) open func visit(_ node: AccessorDeclSyntax) -> SyntaxVisitorContinueKind open func visitPost(_ node: AccessorDeclSyntax) ... } ୳ࡧ͢Δରͷܕͷϊʔυͷ WJTJUؔΛΦʔόʔϥΠυ͢Δ
4ZOUBY3FXSJUFS open class SyntaxRewriter { public func rewrite(_ node: some SyntaxProtocol) -> Syntax open func visitPre(_ node: Syntax) open func visitAny(_ node: Syntax) -> Syntax? open func visitPost(_ node: Syntax) open func visit(_ node: AccessorBlockSyntax) -> AccessorBlockSyntax open func visit(_ node: AccessorDeclListSyntax) -> AccessorDeclListSyntax ...
4PVSDF-PDBUJPO 4PVSDF-PDBUJPO$POWFSUFS let sourceFile = Parser.parse(source: "let number = 100") let locationConverter = SourceLocationConverter(fileName: "", tree: sourceFile) ... let identifier = pattern.identifier let start = identifier.startLocation(converter: locationConverter) let end = identifier.endLocation(converter: locationConverter) print("\(start.line):\(start.column)...\(end.line):\(end.column)") 1:5...1:11
4PVSDF-PDBUJPO 4PVSDF-PDBUJPO$POWFSUFS let sourceFile = Parser.parse(source: "let number = 100") let locationConverter = SourceLocationConverter(fileName: "", tree: sourceFile) ... let identifier = pattern.identifier let start = identifier.startLocation(converter: locationConverter) let end = identifier.endLocation(converter: locationConverter) print("\(start.line):\(start.column)...\(end.line):\(end.column)") 1:5...1:11 let start = identifier.startLocation(converter: locationConverter) let end = identifier.endLocation(converter: locationConverter) print("\(start.line):\(start.column)...\(end.line):\(end.column)") let number = 100 1:5 1:11
1BSTFS3FTJMJFODZ 1BSTFS/FWFS'BJMT SyntaxVisitor(viewMode: .sourceAccurate) enum SyntaxTreeViewMode { case sourceAccurate case fixedUp case all } ιʔείʔυʹදࣔ͞ΕΔτʔΫϯͷΈ 1BSTFS͕ิͨ͠τʔΫϯ८ճ͢Δ 1BSTFS͕ิͨ͠τʔΫϯ͓Αͼ༧ظ͠ͳ͍ϊʔυ८ճ͢Δ
1BSTFS3FTJMJFODZ 1BSTFS/FWFS'BJMT r จ๏Τϥʔ͕͋ͬͯࣗಈతʹͭͭ͡·ͷ߹͏τʔΫϯΛՃͯ͠ଓߦ͢Δ r ਖ਼͘͠ͳ͍จ๏ɺίϯύΠϧͰ͖ͳ͍ιʔείʔυͰ1BSTFͰ͖Δ r ϚΫϩʹίϯύΠϥͷνΣοΫޙͷΤϥʔͷͳ͍4ZOUBY5SFF͕͞ΕΔ r ෆશͳίʔυɺΤϥʔΛؚΉ4ZOUBY5SFF IBT&SSPSϓϩύςΟΛνΣοΫ
4XJGU.BDSPT *OJU.BDSP @Init class Person { let name: String let age: Int let birthday: Date? } class Person { let name: String let age: Int let birthday: Date? }
4XJGU.BDSPT *OJU.BDSP @Init class Person { let name: String let age: Int let birthday: Date? } class Person { let name: String let age: Int let birthday: Date? } } init( name: String, age: Int, birthday: Date? ) { self.name = name self.age = age self.birthday = birthday }
4XJGU.BDSPT *OJU.BDSP struct InitMacro: MemberMacro { static func expansion( of node: AttributeSyntax, providingMembersOf declaration: some DeclGroupSyntax, in context: some MacroExpansionContext ) throws -> [DeclSyntax] { ... } } @Init class Person { let name: String let age: Int let birthday: Date? }
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4XJGU-JOU0QFOJOH#SBDF4QBDJOH3VMF "VUPDPSSFDUJPO🪄 func run(name: T) where T: StringProtocol { } func run() { } func run(){ } func run(name: T) where T: StringProtocol { } if a == b { } if a == b { } *Gจରɻଞʹʁ
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