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BrokerApiCore/Common/Guard.cs

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+using System;
+using System.Diagnostics.CodeAnalysis;
+
+
+using ServerCore;
+using ServerBase;
+using ServerCommon;
+
+
+namespace BrokerCore.Common;
+
+public static class Guard
+{
+    public static class Against
+    {
+        // 기존 메서드를 유지하면서 zero allocation 버전 추가
+        public static void resultFail(Result result, Func<string>? messageFactory = null)
+        {
+            if (result.isFail())
+            {
+                throw new ResultFailException(result, messageFactory?.Invoke());
+            }
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        // public static void resultFail(Result result, Func<string> messageFactory)
+        // {
+        //     if (result.isFail())
+        //     {
+        //         throw new ResultFailException(result, messageFactory());
+        //     }
+        // }
+
+        public static void resultFail(Result result, ServerErrorCode code, string message)
+        {
+            if (result.isFail())
+            {
+                throw new ResultFailException(code, message);
+            }
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        public static void resultFail(Result result, ServerErrorCode code, Func<string> messageFactory)
+        {
+            if (result.isFail())
+            {
+                throw new ResultFailException(code, messageFactory());
+            }
+        }
+
+        public static void isNull([NotNull] object? value, ServerErrorCode code, string message)
+        {
+            if (value is null)
+            {
+                throw new ApiException(code, message);
+            }
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        public static void isNull([NotNull] object? value, ServerErrorCode code, Func<string> messageFactory)
+        {
+            if (value is null)
+            {
+                throw new ApiException(code, messageFactory());
+            }
+        }
+
+        public static void isFalse(bool value, ServerErrorCode code, string message)
+        {
+            if (!value)
+            {
+                throw new ApiException(code, message);
+            }
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        public static void isFalse(bool value, ServerErrorCode code, Func<string> messageFactory)
+        {
+            if (!value)
+            {
+                throw new ApiException(code, messageFactory());
+            }
+        }
+
+        public static void isTrue(bool value, ServerErrorCode code, string message)
+        {
+            if (value)
+            {
+                throw new ApiException(code, message);
+            }
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        public static void isTrue(bool value, ServerErrorCode code, Func<string> messageFactory)
+        {
+            if (value)
+            {
+                throw new ApiException(code, messageFactory());
+            }
+        }
+
+        public static void isNullOrEmptyOrWhiteSpace([NotNull] string? value, ServerErrorCode code, string message)
+        {
+            if (value is null || string.IsNullOrEmpty(value) || string.IsNullOrWhiteSpace(value))
+            {
+                throw new ApiException(code, message);
+            }
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        public static void isNullOrEmptyOrWhiteSpace([NotNull] string? value, ServerErrorCode code, Func<string> messageFactory)
+        {
+            if (value is null || string.IsNullOrEmpty(value) || string.IsNullOrWhiteSpace(value))
+            {
+                throw new ApiException(code, messageFactory());
+            }
+        }
+
+        // ReadOnlySpan<char> 버전 추가
+        public static void isNullOrEmptyOrWhiteSpace([NotNull] string? value, ServerErrorCode code, ReadOnlySpan<char> message)
+        {
+            if (value is null || string.IsNullOrEmpty(value) || string.IsNullOrWhiteSpace(value))
+            {
+                throw new ApiException(code, message.ToString());
+            }
+        }
+
+        public static void throwException(ServerErrorCode code, string message)
+        {
+            throw new ApiException((int)code, message);
+        }
+
+        // Func<string> 활용 지연 평가 버전 추가
+        public static void throwException(ServerErrorCode code, Func<string> messageFactory)
+        {
+            throw new ApiException((int)code, messageFactory());
+        }
+    }
+}