Merge pull request #14 from devlights/csharp7-new-feature-more-expression-bodies

Add C# 7.0 Expression Body advanced example

Author: devlights

TryCSharp.Samples/CSharp7/MoreExpressionBodiedMembers.cs

@@ -0,0 +1,38 @@
+using TryCSharp.Common;
+
+namespace TryCSharp.Samples.CSharp7
+{
+    [Sample]
+    public class MoreExpressionBodiedMembers : IExecutable
+    {
+        class Data
+        {
+            private string _value;
+
+            public Data(string val) => this.Value = val;
+            
+            public string UpperCaseValue => this.Value.ToUpper();
+
+            // ReSharper disable once ConvertToAutoProperty
+            public string Value
+            {
+                get => this._value;
+                private set => this._value = value;
+            }
+
+            public string ToLowerValue() => this.Value.ToLower();
+        }
+        
+        public void Execute()
+        {
+            // C# 6.0 にて Expression Body が導入されたが
+            // C# 7.0 にて、新たに
+            //   - コンストラクタ
+            //   - read/write プロパティ
+            //   - ファイナライザ
+            // でも利用できるようなった
+            var data = new Data("hello world");
+            Output.WriteLine($"{data.Value}-{data.UpperCaseValue}-{data.ToLowerValue()}");
+        }
+    }
+}