34 lines
1.1 KiB
C#
34 lines
1.1 KiB
C#
using Convention.RScript.Parser;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
|
|
namespace Convention.RScript.Runner
|
|
{
|
|
public class ExitNamespaceRunner : IRSentenceRunner
|
|
{
|
|
public void Compile(ExpressionParser parser, RScriptSentence sentence, RScriptContext context)
|
|
{
|
|
|
|
}
|
|
|
|
[return: MaybeNull]
|
|
public object Run(ExpressionParser parser, RScriptSentence sentence, RScriptContext context)
|
|
{
|
|
// 移除当前命名空间的变量
|
|
foreach (var local in context.CurrentLocalSpaceVariableNames.Peek())
|
|
{
|
|
context.Variables.Remove(local);
|
|
parser.context.Variables.Remove(local);
|
|
}
|
|
// 还原上层命名空间的变量
|
|
foreach (var local in context.CurrentLocalSpaceVariableNames.Peek())
|
|
{
|
|
parser.context.Variables[local] = context.Variables[local].data;
|
|
}
|
|
context.CurrentLocalSpaceVariableNames.Pop();
|
|
// 弹栈
|
|
context.RuntimePointerStack.Pop();
|
|
return null;
|
|
}
|
|
}
|
|
}
|