RScript/DoRunner/EnterNamedSpaceRunner.cs

using Convention.RScript.Parser;
using System.Collections;
using System.Diagnostics.CodeAnalysis;

namespace Convention.RScript.Runner
{
    public class EnterNamedSpaceRunner : IRSentenceRunner
    {
        public void Compile(ExpressionParser parser, RScriptSentence sentence, RScriptContext context)
        {

        }

        [return: MaybeNull]
        public object Run(ExpressionParser parser, RScriptSentence sentence, RScriptContext context)
        {
            context.CurrentRuntimePointer = context.NamespaceLayer[context.NamespaceLabels[sentence.content]];
            return null;
        }

        [return: MaybeNull]
        public IEnumerator RunAsync(ExpressionParser parser, RScriptSentence sentence, RScriptContext context)
        {
            context.CurrentRuntimePointer = context.NamespaceLayer[context.NamespaceLabels[sentence.content]];
            yield break;
        }
    }
}