1 // 2 // ExpressionTest_Loop.cs 3 // 4 // Author: 5 // Marek Safar (marek.safar@gmail.com) 6 // 7 // Copyright (C) 2016 Xamarin Inc (http://www.xamarin.com) 8 // 9 // Permission is hereby granted, free of charge, to any person obtaining 10 // a copy of this software and associated documentation files (the 11 // "Software"), to deal in the Software without restriction, including 12 // without limitation the rights to use, copy, modify, merge, publish, 13 // distribute, sublicense, and/or sell copies of the Software, and to 14 // permit persons to whom the Software is furnished to do so, subject to 15 // the following conditions: 16 // 17 // The above copyright notice and this permission notice shall be 18 // included in all copies or substantial portions of the Software. 19 // 20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 27 // 28 29 using System; 30 using System.Reflection; 31 using System.Linq; 32 using System.Linq.Expressions; 33 34 using NUnit.Framework; 35 36 namespace MonoTests.System.Linq.Expressions { 37 38 [TestFixture] 39 public class ExpressionTest_Loop 40 { Print(int arg)41 public static void Print (int arg) 42 { 43 } 44 45 [Test] ComplexTest()46 public void ComplexTest () 47 { 48 var breakLabel = Expression.Label ("LoopBreak"); 49 var counter = Expression.Variable (typeof (int), "counter"); 50 51 var l = Expression.Block (new[] { counter }, 52 Expression.Assign (counter, Expression.Constant (-1)), 53 Expression.Loop ( 54 Expression.Block (Expression.IfThenElse ( 55 Expression.Equal (Expression.Assign (counter, Expression.Add (counter, Expression.Constant (1))), Expression.Constant (1000)), 56 Expression.Block (Expression.Break (breakLabel)), 57 Expression.Call (null, typeof (ExpressionTest_Loop).GetMethod ("Print", new Type[] { typeof (int) }), counter) 58 )), 59 breakLabel) 60 ); 61 62 var res = Expression.Lambda<Action> (l).Compile (); 63 } 64 65 [Test] ComplexTest_2()66 public void ComplexTest_2 () 67 { 68 var breakLabel = Expression.Label ("LoopBreak"); 69 var counter = Expression.Variable (typeof (int), "counter"); 70 71 var l = Expression.Block (new[] { counter }, 72 Expression.Assign (counter, Expression.Constant(-1)), 73 Expression.Loop ( 74 Expression.IfThenElse ( 75 Expression.Equal (Expression.Assign (counter, Expression.Add (counter, Expression.Constant (1))), Expression.Constant (1000)), 76 Expression.Break (breakLabel), 77 Expression.Call (null, typeof (ExpressionTest_Loop).GetMethod ("Print", new Type[] { typeof (int) }), counter) 78 ), 79 breakLabel) 80 ); 81 82 var res = Expression.Lambda<Action> (l).Compile (); 83 } 84 } 85 } 86