enable StrictConcurrency; Sendable fixes

Author: RandomHashTags

Package.swift

@@ -116,3 +116,9 @@ let package = Package(
         ),
     ]
 )
+
+for target in package.targets {
+    target.swiftSettings = [
+        .enableExperimentalFeature("StrictConcurrency")
+    ]
+}

Sources/HTMLAttributes/HTMLAttribute.swift

@@ -229,18 +229,18 @@ public enum HTMLAttribute : HTMLInitializable {
 
 // MARK: ElementData
 extension HTMLKitUtilities {
-    public struct ElementData {
+    public struct ElementData : Sendable {
         public let encoding:HTMLEncoding
         public let globalAttributes:[HTMLAttribute]
-        public let attributes:[String:Any]
-        public let innerHTML:[CustomStringConvertible]
+        public let attributes:[String:Sendable]
+        public let innerHTML:[CustomStringConvertible & Sendable]
         public let trailingSlash:Bool
 
         package init(
             _ encoding: HTMLEncoding,
             _ globalAttributes: [HTMLAttribute],
-            _ attributes: [String:Any],
-            _ innerHTML: [CustomStringConvertible],
+            _ attributes: [String:Sendable],
+            _ innerHTML: [CustomStringConvertible & Sendable],
             _ trailingSlash: Bool
         ) {
             self.encoding = encoding

Sources/HTMLElements/CustomElement.swift

@@ -37,7 +37,7 @@ public struct custom : HTMLElement {
         tag: String,
         isVoid: Bool,
         attributes: [HTMLAttribute] = [],
-        _ innerHTML: CustomStringConvertible...
+        _ innerHTML: CustomStringConvertible & Sendable...
     ) {
         self.tag = tag
         self.isVoid = isVoid

Sources/HTMLElements/svg/svg.swift

@@ -40,7 +40,7 @@ struct svg : HTMLElement {
     }
     public init(
         attributes: [HTMLAttribute] = [],
-        _ innerHTML: CustomStringConvertible...
+        _ innerHTML: CustomStringConvertible & Sendable...
     ) {
         trailingSlash = attributes.contains(.trailingSlash)
         self.attributes = attributes

Sources/HTMLKitParse/InterpolationLookup.swift

@@ -13,8 +13,9 @@ import SwiftParser
 import SwiftSyntax
 
 enum InterpolationLookup {
-    private static var cached:[String:CodeBlockItemListSyntax] = [:]
+    @MainActor private static var cached:[String:CodeBlockItemListSyntax] = [:]
 
+    @MainActor
     static func find(context: HTMLExpansionContext, _ node: some ExprSyntaxProtocol, files: Set<String>) -> String? {
         guard !files.isEmpty, let item:Item = item(context: context, node) else { return nil }
         for file in files {

Sources/HTMLKitParse/ParseData.swift

@@ -88,8 +88,8 @@ extension HTMLKitUtilities {
     ) -> ElementData {
         var context:HTMLExpansionContext = context
         var global_attributes:[HTMLAttribute] = []
-        var attributes:[String:Any] = [:]
-        var innerHTML:[CustomStringConvertible] = []
+        var attributes:[String:Sendable] = [:]
+        var innerHTML:[CustomStringConvertible & Sendable] = []
         var trailingSlash:Bool = false
         for element in context.arguments.children(viewMode: .all) {
             if let child:LabeledExprSyntax = element.labeled {
@@ -126,7 +126,7 @@ extension HTMLKitUtilities {
                         }
                     }
                 // inner html
-                } else if let inner_html:CustomStringConvertible = parseInnerHTML(context: context, child: child) {
+                } else if let inner_html:CustomStringConvertible & Sendable = parseInnerHTML(context: context, child: child) {
                     innerHTML.append(inner_html)
                 }
             }
@@ -194,7 +194,7 @@ extension HTMLKitUtilities {
     public static func parseInnerHTML(
         context: HTMLExpansionContext,
         child: LabeledExprSyntax
-    ) -> CustomStringConvertible? {
+    ) -> (CustomStringConvertible & Sendable)? {
         if let expansion:MacroExpansionExprSyntax = child.expression.macroExpansion {
             if expansion.macroName.text == "escapeHTML" {
                 var c:HTMLExpansionContext = context

Sources/HTMLKitParse/ParseLiteral.swift

@@ -174,7 +174,7 @@ extension HTMLKitUtilities {
             default:
                 separator = " "
             }
-            var results:[Any] = []
+            var results:[Sendable] = []
             for element in array.elements {
                 if let attribute:any HTMLInitializable = HTMLAttribute.Extra.parse(context: context, expr: element.expression) {
                     results.append(attribute)
@@ -210,7 +210,7 @@ public enum LiteralReturnType {
     case int(Int)
     case float(Float)
     case interpolation(String)
-    case array([Any])
+    case array([Sendable])
 
     public var isInterpolation : Bool {
         switch self {

Sources/HTMLKitUtilities/HTMLElementType.swift

@@ -5,7 +5,7 @@
 //  Created by Evan Anderson on 11/21/24.
 //
 
-public enum HTMLElementType : String, CaseIterable {
+public enum HTMLElementType : String, CaseIterable, Sendable {
     case html
 
     case a

Sources/HTMLKitUtilities/HTMLExpansionContext.swift

@@ -11,7 +11,7 @@ import SwiftSyntaxMacros
 #endif
 
 /// Data required to process an HTML expansion.
-public struct HTMLExpansionContext {
+public struct HTMLExpansionContext : @unchecked Sendable {
     #if canImport(SwiftSyntax) && canImport(SwiftSyntaxMacros)
     public let context:MacroExpansionContext
     public let expansion:MacroExpansionExprSyntax

Sources/HTMLKitUtilityMacros/HTMLElements.swift

@@ -97,7 +97,7 @@ enum HTMLElements : DeclarationMacro {
             for (key, value_type, default_value) in attributes {
                 initializers += key + ": " + value_type + default_value + ",\n"
             }
-            initializers += "_ innerHTML: CustomStringConvertible...\n) {\n"
+            initializers += "_ innerHTML: CustomStringConvertible & Sendable...\n) {\n"
             initializers += "self.attributes = attributes\n"
             for (key, _, _) in attributes {
                 var key_literal:String = key