更新异步step

DoRunner/GoToRunner.cs

@@ -1,4 +1,5 @@
 using Convention.RScript.Parser;
+using System.Collections;
 using System.Diagnostics.CodeAnalysis;
 
 namespace Convention.RScript.Runner
@@ -48,5 +49,43 @@ namespace Convention.RScript.Runner
             }
             return null;
         }
+
+        [return: MaybeNull]
+        public override IEnumerator RunAsync(ExpressionParser parser, RScriptSentence sentence, RScriptContext context)
+        {
+            // 检查并跳转到指定标签
+            if (parser.Evaluate<bool>(sentence.info[0]))
+            {
+                if (context.Labels.TryGetValue(sentence.content, out var labelPointer))
+                {
+                    context.GotoPointerStack.Push(context.CurrentRuntimePointer);
+                    DoJumpRuntimePointer(parser, labelPointer, context);
+                }
+                else if (context.NamespaceLabels.TryGetValue(sentence.content, out labelPointer))
+                {
+                    int current = context.CurrentRuntimePointer;
+                    //DoEnterNamespace(parser);
+                    context.SentenceRunners[RScriptSentence.Mode.EnterNamespace].Run(parser, context.CurrentSentence, context);
+                    context.CurrentRuntimePointer = labelPointer;
+                    for (int e = context.NamespaceLayer[context.NamespaceLabels[sentence.content]]; ;)
+                    {
+                        yield return context.RunNextStepAsync(parser);
+                        if (context.CurrentRuntimePointer >= context.Sentences.Length)
+                            break;
+                        else if (context.CurrentRuntimePointer == e)
+                            break;
+                        else
+                            context.CurrentRuntimePointer++;
+                    }
+                    //context.DoExitNamespace(parser);
+                    context.SentenceRunners[RScriptSentence.Mode.ExitNamespace].Run(parser, context.CurrentSentence, context);
+                    context.CurrentRuntimePointer = current;
+                }
+                else
+                {
+                    throw new RScriptRuntimeException($"Label '{sentence.content}' not found.", context.CurrentRuntimePointer);
+                }
+            }
+        }
     }
 }