add directory hint

Author: JaapWijnen

Package.swift

@@ -28,7 +28,7 @@ let package = Package(
         .executableTarget(name: "CodeGeneratorExecutable"),
         .plugin(
             name: "CodeGeneratorPlugin",
-            capability: .buildTool(),
+            capability: .buildTool,
             dependencies: ["CodeGeneratorExecutable"]
         ),
         .target(

Plugins/CodeGeneratorPlugin.swift

@@ -4,8 +4,8 @@ import PackagePlugin
 @main
 struct CodeGeneratorPlugin: BuildToolPlugin {
     func createBuildCommands(context: PackagePlugin.PluginContext, target: PackagePlugin.Target) async throws -> [PackagePlugin.Command] {
-        
         let output = context.pluginWorkDirectoryURL.appending(component: "GeneratedCode")
+
         let floatingPointTypes: [String] = ["Float", "Double"]
         let simdSizes = [2, 4, 8, 16, 32, 64]
 

Sources/CodeGeneratorExecutable/CodeGenerator.swift

@@ -2,7 +2,7 @@ import Foundation
 
 @main
 struct CodeGenerator {
-    static func main() async throws {
+    static func main() throws {
         // Use swift-argument-parser or just CommandLine, here we just imply that 2 paths are passed in: input and output
         guard CommandLine.arguments.count == 2 else {
             throw CodeGeneratorError.invalidArguments
@@ -20,13 +20,19 @@ struct CodeGenerator {
 
         for floatingPointType in floatingPointTypes {
             // Generator Derivatives for RealFunctions for floating point types
-            let realFunctionDerivativesFileURL = output.appending(component: "\(floatingPointType)+RealFunctions+Derivatives.swift")
+            let realFunctionDerivativesFileURL = output.appending(
+                component: "\(floatingPointType)+RealFunctions+Derivatives.swift",
+                directoryHint: .notDirectory
+            )
             let type = floatingPointType
             let realFunctionsDerivativesExtensionCode = RealFunctionsDerivativesGenerator.realFunctionsDerivativesExtension(type: type, floatingPointType: floatingPointType)
             try realFunctionsDerivativesExtensionCode.write(to: realFunctionDerivativesFileURL, atomically: true, encoding: .utf8)
 
             for simdSize in simdSizes {
-                let realFunctionFileURL = output.appending(component: "SIMD\(simdSize)+\(floatingPointType)+RealFunctions.swift")
+                let realFunctionFileURL = output.appending(
+                    component: "SIMD\(simdSize)+\(floatingPointType)+RealFunctions.swift",
+                    directoryHint: .notDirectory
+                )
                 let simdType = "SIMD\(simdSize)<\(floatingPointType)>"
 
                 // no simd methods exist for simd size >= 16 and scalar > Float so we don't add acceleration to those.