From d50e84cbbd7f5d8742e5ab1794b5d050770b2d40 Mon Sep 17 00:00:00 2001
From: Sanchime <sanchime.qq.com>
Date: Sun, 8 May 2022 17:06:05 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B5=8B=E8=AF=95=E4=BA=86Option=E7=9A=84?=
 =?UTF-8?q?=E4=B8=80=E4=BA=9B=E6=93=8D=E4=BD=9C?=
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---
 Sanchime.Test/Program.cs | 43 ++++++++++++++++++++++++++++++++++------
 1 file changed, 37 insertions(+), 6 deletions(-)

diff --git a/Sanchime.Test/Program.cs b/Sanchime.Test/Program.cs
index f5e058a..9109a88 100644
--- a/Sanchime.Test/Program.cs
+++ b/Sanchime.Test/Program.cs
@@ -8,12 +8,43 @@ using Sanchime.Toolkits;
 
 // Console.WriteLine(test.Value);
 
-foo(10);
-foo(Option.None);
+// foo(10);
+// foo(Option.None);
 
-void foo(Option<int> option)
+// void foo(Option<int> option)
+// {
+//     var res = option.Map(x => x + 2);
+//     res.WriteLine();
+// }
+
+// 测试Option的Bind
+var parse = (string s) => Int32.TryParse(s, out int i) ? Option.Some(i) : Option.None;
+var foo = (string s) => s.Pipe(parse).Bind(Age.Of);
+
+foo("111").WriteLine();
+foo("aaa").WriteLine();
+foo("123").WriteLine();
+// 管道
+foo("1ab").Pipe(x => Console.WriteLine(x));
+public struct Age
 {
-    var res = option.Map(x => x + 2);
-    res.WriteLine();
-}
+    private int _value;
 
+    public static Option<Age> Of(int age)
+        => IsValid(age) ? Option.Some(new Age(age)) : Option.None;
+
+    private Age(int age)
+    {
+        if (!IsValid(age))
+        {
+            throw new ArgumentException("输入的年龄是无效的");
+        }
+        _value = age;
+    } 
+
+    private static bool IsValid(int age)
+        => age is (>= 0 and <= 150);
+
+    public override string ToString()
+        => _value.ToString();
+}