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Fix Singleton: inherit from NSObject #5

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Fix Singleton: inherit from NSObject #5

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13 changes: 12 additions & 1 deletion Sources/Macros/Singleton/SingletonMacro.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,18 @@ struct SingletonMacro: MemberMacro {

let nameOfDecl = try name(providingMembersOf: declaration).text
let isPublic = declaration.modifiers.map(\.name.tokenKind.keyword).contains(.public)
let initializer = try InitializerDeclSyntax("private init()") {}

// 检查是否继承自NSObject
let inheritsFromNSObject = if let classDecl = declaration.as(ClassDeclSyntax.self) {
classDecl.inheritanceClause?.inheritedTypes.contains { type in
type.type.as(IdentifierTypeSyntax.self)?.name.text == "NSObject"
} ?? false
} else {
false
}

// 根据是否继承NSObject决定init方法是否需要override
let initializer = try InitializerDeclSyntax(inheritsFromNSObject ? "private override init()" : "private init()") {}

let shared = "\(isPublic ? "public" : "") static let shared = \(nameOfDecl)()"

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