From 441f0dbca31093263903ddc9cc1c815d9c6be6b0 Mon Sep 17 00:00:00 2001
From: xuejiaming <326308290@qq.com>
Date: Wed, 19 Oct 2022 22:31:09 +0800
Subject: [PATCH] [#209]

---
 .../MergeContexts/QueryableRewriteEngine.cs       |  9 +++++++++
 .../Sharding/ParseEngines/ParseEngine.cs          | 15 ---------------
 2 files changed, 9 insertions(+), 15 deletions(-)
 delete mode 100644 src/ShardingCore/Sharding/ParseEngines/ParseEngine.cs

diff --git a/src/ShardingCore/Sharding/MergeContexts/QueryableRewriteEngine.cs b/src/ShardingCore/Sharding/MergeContexts/QueryableRewriteEngine.cs
index cf848b6d..88ce737d 100644
--- a/src/ShardingCore/Sharding/MergeContexts/QueryableRewriteEngine.cs
+++ b/src/ShardingCore/Sharding/MergeContexts/QueryableRewriteEngine.cs
@@ -59,6 +59,15 @@ namespace ShardingCore.Sharding.MergeContexts
             var orders = orderByContext.PropertyOrders;
 
             var combineQueryable = mergeQueryCompilerContext.GetQueryCombineResult().GetCombineQueryable();
+            
+            if (skip is < 0)
+            {
+                throw new ShardingCoreException($"queryable:{mergeQueryCompilerContext.GetQueryCombineResult().GetQueryCompilerContext().GetQueryExpression().ShardingPrint()} skip should >= 0");
+            }
+            if (take is < 0)
+            {
+                throw new ShardingCoreException($"queryable:{mergeQueryCompilerContext.GetQueryCombineResult().GetQueryCompilerContext().GetQueryExpression().ShardingPrint()} take should >= 0");
+            }
             //去除分页,获取前Take+Skip数量
             var reWriteQueryable = combineQueryable;
             if (take.HasValue || skip.HasValue)
diff --git a/src/ShardingCore/Sharding/ParseEngines/ParseEngine.cs b/src/ShardingCore/Sharding/ParseEngines/ParseEngine.cs
deleted file mode 100644
index 0138bc5c..00000000
--- a/src/ShardingCore/Sharding/ParseEngines/ParseEngine.cs
+++ /dev/null
@@ -1,15 +0,0 @@
-using System;
-
-/*
-* @Author: xjm
-* @Description:
-* @Date: DATE TIME
-* @Email: 326308290@qq.com
-*/
-namespace ShardingCore.Sharding.ParseEngines
-{
-    public class ParseEngine
-    {
-        
-    }
-}
\ No newline at end of file