async PluginFunction

Pilz.Features/PluginFunction.cs

@@ -34,7 +34,7 @@ public abstract class PluginFunction : PluginFeature
 
     public virtual object? Execute(PluginFunctionParameter? @params)
     {
-        object? result = default;
+        object? result = null;
 
         if (OnPreExecute(@params, ref result))
             result = ExecuteFunction(@params);
@@ -43,6 +43,48 @@ public abstract class PluginFunction : PluginFeature
 
         return result;
     }
+    
+    public virtual Task<object?> ExecuteAsync()
+    {
+        return ExecuteAsync((PluginFunctionParameter?)null);
+    }
 
-    protected abstract object? ExecuteFunction(PluginFunctionParameter? @params);
+    public virtual Task<T?> ExecuteAsync<T>(params object?[]? @params)
+    {
+        return ExecuteAsync<T>(new PluginFunctionSimpleParamter(@params));
+    }
+
+    public virtual Task<object?> ExecuteAsync(params object?[]? @params)
+    {
+        return ExecuteAsync(new PluginFunctionSimpleParamter(@params));
+    }
+
+    public virtual async Task<T?> ExecuteAsync<T>(PluginFunctionSimpleParamter? @params)
+    {
+        if (await ExecuteAsync(@params) is T result)
+            return result;
+        return default;
+    }
+
+    public virtual async Task<object?> ExecuteAsync(PluginFunctionParameter? @params)
+    {
+        object? result = null;
+
+        if (OnPreExecute(@params, ref result))
+            result = await ExecuteFunctionAsync(@params);
+
+        OnPostExecute(@params, ref result);
+
+        return result;
+    }
+    
+    protected virtual object? ExecuteFunction(PluginFunctionParameter? @params)
+    {
+        return ExecuteFunctionAsync(@params).GetAwaiter().GetResult();
+    }
+
+    protected virtual Task<object?> ExecuteFunctionAsync(PluginFunctionParameter? @params)
+    {
+        return Task.FromResult(ExecuteFunction(@params));
+    }
 }