PeerMacro
PeerMacro.swift:17protocol PeerMacro : AttachedMacroprotocol PeerMacro : AttachedMacroimport SwiftSyntaxMacrosprotocol AttachedMacro : MacroDescribes a macro that is attached, meaning that it is used with custom attribute syntax and attached to another entity.
protocol MacroDescribes a macro.
static func expansion(of node: AttributeSyntax, providingPeersOf declaration: some DeclSyntaxProtocol, in context: some MacroExpansionContext) throws -> [DeclSyntax] Expand a macro described by the given custom attribute and attached to the given declaration and evaluated within a particular expansion context.