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How to use ExpressionReplacer class of Telerik.JustMock.Core.Expressions package

Best JustMockLite code snippet using Telerik.JustMock.Core.Expressions.ExpressionReplacer

FluentHelper.cs

Source:FluentHelper.cs

...30		{31			var repo = MockingContext.CurrentRepository;32			var instanceParam = expression.Parameters[0];33			var instanceConstant = Expression.Constant(obj);34			var parameterlessBody = ExpressionReplacer.Replace(expression.Body, instanceParam, instanceConstant);35			var parameterlessArrangeStmt = Expression.Lambda(parameterlessBody);36			return repo.Arrange(parameterlessArrangeStmt, containerFactory);37		}38		private static void DoAssert(string message, object obj, Type objType, LambdaExpression expression, Args args, Occurs occurs)39		{40			var repo = MockingContext.CurrentRepository;41			Expression parameterlessArrangeStmt = null;42			if (expression != null)43			{44				var instanceParam = expression.Parameters[0];45				var instanceConstant = Expression.Constant(obj);46				var parameterlessBody = ExpressionReplacer.Replace(expression.Body, instanceParam, instanceConstant);47				parameterlessArrangeStmt = Expression.Lambda(parameterlessBody);48			}49			repo.Assert(message, obj, parameterlessArrangeStmt, args, occurs);50		}51		/// <summary>52		/// Setups the target call to act in a specific way.53		/// </summary>54		/// <typeparam name="T">Mock type</typeparam>55		/// <typeparam name="TResult">Return type for the target setup.</typeparam>56		/// <param name="obj">Target instance.</param>57		/// <param name="expression">Target expression.</param>58		/// <returns>59		/// Reference to <see cref="FuncExpectation{TResult}" /> to setup the mock.60		/// </returns>...

FunctionalSpecParser.cs

Source:FunctionalSpecParser.cs

...27		public static void ApplyFunctionalSpec<T>(T mock, Expression<Func<T, bool>> specExpr, IReturnArranger arranger)28		{29			try30			{31				var body = ExpressionReplacer.Replace(specExpr.Body, specExpr.Parameters[0], Expression.Constant(mock, typeof(T)));32				ApplySpecExpression(body, arranger);33			}34			catch (InvalidCastException ex)35			{36				throw new MockException("Incorrect functional spec expression format.", ex);37			}38		}39		private static void ApplySpecExpression(Expression expr, IReturnArranger arranger)40		{41			var asBinary = expr as BinaryExpression;42			if (asBinary != null)43			{44				ApplySpecExpression(asBinary, arranger);45				return;46			}47			if (expr.Type == typeof(bool))48			{49				Expression<Func<bool>> returnDelg = () => true;50				if (expr.NodeType == ExpressionType.Not)51				{52					expr = ((UnaryExpression)expr).Operand;53					returnDelg = () => false;54				}55				arranger.ArrangeReturn<bool>((Expression<Func<bool>>)Expression.Lambda(expr), returnDelg);56			}57		}58		private static void ApplySpecExpression(BinaryExpression expr, IReturnArranger arranger)59		{60			switch (expr.NodeType)61			{62				case ExpressionType.Equal:63					{64						var arrangement = expr.Left;65						// the expression may end with a boxing conversion, remove that66						while (arrangement.NodeType == ExpressionType.Convert)67							arrangement = ((UnaryExpression)arrangement).Operand;68						var action = expr.Right;69						ParameterExpression[] parameters = null;70						// if we're arranging a method, replace Param<T> with actual parameters71						if (arrangement is MethodCallExpression)72						{73							var methodCall = (MethodCallExpression)arrangement;74							var actionParameters = methodCall.Arguments.Select(arg => Expression.Parameter(arg.Type, "")).ToArray();75							bool madeReplacements = false;76							var actionWithParams = ExpressionReplacer.Replace(action,77								exp =>78								{79									var index = GetParamIndex(exp);80									return index != null;81								},82								exp =>83								{84									madeReplacements = true;85									var index = GetParamIndex(exp);86									Expression param = actionParameters[index.Value];87									if (param.Type != exp.Type)88									{89										if (exp.Type != typeof(string))90											param = Expression.Convert(param, exp.Type);...

ExpressionReplacer.cs

Source:ExpressionReplacer.cs

...15using System.Linq;16using System.Linq.Expressions;17namespace Telerik.JustMock.Core.Expressions18{19	internal class ExpressionReplacer : ExpressionVisitor20	{21		private Predicate<Expression> searchExpression;22		private Func<Expression, Expression> replaceExpression;23		public static Expression Replace(Expression source, Expression searchExpr, Expression replaceExpr)24		{25			return Replace(source, exp => Equals(exp, searchExpr), exp => replaceExpr);26		}27		public static Expression Replace(Expression source, Predicate<Expression> searchPred, Func<Expression, Expression> replaceFunc)28		{29			var replacer = new ExpressionReplacer { searchExpression = searchPred, replaceExpression = replaceFunc };30			return replacer.Visit(source);31		}32		public override Expression Visit(Expression exp)33		{34			return this.searchExpression(exp) ? this.replaceExpression(exp) : base.Visit(exp);35		}36	}37}...

ExpressionReplacer

Using AI Code Generation

1{2    public string Method1()3    {4        return "Method1";5    }6}7{8    public string Method2()9    {10        return "Method2";11    }12}13{14    public string Method3()15    {16        return "Method3";17    }18}19{20    public string Method4()21    {22        return "Method4";23    }24}25{26    public string Method5()27    {28        return "Method5";29    }30}31{32    public string Method6()33    {34        return "Method6";35    }36}37{38    public string Method7()39    {40        return "Method7";41    }42}43{44    public string Method8()45    {46        return "Method8";47    }48}49{50    public string Method9()51    {52        return "Method9";53    }54}55{56    public string Method10()57    {58        return "Method10";59    }60}61{62    public string Method11()63    {64        return "Method11";65    }66}

ExpressionReplacer

Using AI Code Generation

1using Telerik.JustMock.Core.Expressions;2{3    {4        public static void Main()5        {6            var mock = Mock.Create<IFoo>();7            Mock.Arrange(() => mock.Execute(ArgExpr.IsAny<int>(), ArgExpr.IsAny<int>())).Returns(1);8            var result = mock.Execute(1, 2);9        }10    }11    {12        int Execute(int x, int y);13    }14}15using Telerik.JustMock;16using Telerik.JustMock.Core.Expressions;17{18    {19        public static void Main()20        {21            var mock = Mock.Create<IFoo>();22            Mock.Arrange(() => mock.Execute(ArgExpr.IsAny<int>(), ArgExpr.IsAny<int>())).Returns(1);23            var result = mock.Execute(1, 2);24        }25    }26    {27        int Execute(int x, int y);28    }29}

ExpressionReplacer

Using AI Code Generation

1using System;2using System.Linq.Expressions;3using Telerik.JustMock.Core.Expressions;4{5    {6        public static void Main()7        {8            Expression<Func<int, int>> expression = x => x + 1;9            Expression<Func<int, int>> newExpression = ExpressionReplacer.Replace(expression, expression.Parameters[0], Expression.Constant(1));10            Console.WriteLine(newExpression.ToString());11        }12    }13}

ExpressionReplacer

Using AI Code Generation

1using Telerik.JustMock.Core.Expressions;2Expression<Func<int, int>> expr = x => x + 1;3Expression<Func<int, int>> newExpr = ExpressionReplacer.Replace(expr, x => x == 1, x => 2);4var func = newExpr.Compile();5using Telerik.JustMock.Core.Expressions;6Expression<Func<int, int>> expr = x => x + 1;7Expression<Func<int, int>> newExpr = ExpressionReplacer.Replace(expr, x => x == 1, x => x + 2);8var func = newExpr.Compile();9using Telerik.JustMock.Core.Expressions;10Expression<Func<int, int>> expr = x => x + 1;11Expression<Func<int, int>> newExpr = ExpressionReplacer.Replace(expr, x => x == 1, x => x + 3);12var func = newExpr.Compile();13using Telerik.JustMock.Core.Expressions;14Expression<Func<int, int>> expr = x => x + 1;15Expression<Func<int, int>> newExpr = ExpressionReplacer.Replace(expr, x => x == 1, x => x + 4);16var func = newExpr.Compile();17using Telerik.JustMock.Core.Expressions;18Expression<Func<int, int>> expr = x => x + 1;19Expression<Func<int, int>> newExpr = ExpressionReplacer.Replace(expr, x => x == 1, x => x + 5);

ExpressionReplacer

Using AI Code Generation

1using Telerik.JustMock.Core.Expressions;2using Telerik.JustMock.Core.Expressions;3ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));4using Telerik.JustMock.Core.Expressions;5ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));6using Telerik.JustMock.Core.Expressions;7ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));8using Telerik.JustMock.Core.Expressions;9ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));10using Telerik.JustMock.Core.Expressions;11ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));12using Telerik.JustMock.Core.Expressions;13ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));14using Telerik.JustMock.Core.Expressions;15ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));16using Telerik.JustMock.Core.Expressions;17ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));18using Telerik.JustMock.Core.Expressions;19ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));20using Telerik.JustMock.Core.Expressions;21ExpressionReplacer.Replace(() => Console.WriteLine("Hello World!")).With(() => Console.WriteLine("Hello Telerik!"));

ExpressionReplacer

Using AI Code Generation

1using Telerik.JustMock.Core.Expressions;2{3    {4        public void ReplaceExpression()5        {6            var expr = ExpressionReplacer.Replace(() => 1 + 1, () => 3);7            Assert.Equal(3, expr.Compile().DynamicInvoke());8        }9    }10}11using Telerik.JustMock.Core.Expressions;12{13    {14        public void ReplaceExpression()15        {16            var expr = ExpressionReplacer.Replace(() => 1 + 1, () => 3);17            Assert.Equal(3, expr.Compile().DynamicInvoke());18        }19    }20}

ExpressionReplacer

Using AI Code Generation

1var replacer = new ExpressionReplacer();2var expression = replacer.ReplaceAll(expression, (exp) => {3    if (exp.NodeType == ExpressionType.Call)4    {5        var callExp = exp as MethodCallExpression;6        if (callExp.Method.Name == "GetFoo")7        {8            return Expression.Constant("bar");9        }10    }11    return exp;12});13var replacer = new ExpressionReplacer();14var expression = replacer.ReplaceAll(expression, (exp) => {15    if (exp.NodeType == ExpressionType.Call)16    {17        var callExp = exp as MethodCallExpression;18        if (callExp.Method.Name == "GetFoo")19        {20            return Expression.Constant("bar");21        }22    }23    return exp;24});25ExpressionReplacer.ReplaceAll(Expression, Func<Expression, Expression>) Overload

ExpressionReplacer

Using AI Code Generation

1using Telerik.JustMock.Core.Expressions;2using System;3using System.Linq.Expressions;4{5    {6        public static void ReplaceExpression()7        {8            var instance = new Mocked();9            var parameter = Expression.Parameter(typeof(int), "x");10            var lambda = Expression.Lambda<Func<int, int>>(Expression.Add(parameter, Expression.Constant(1)), parameter);11            ExpressionReplacer.Replace(() => instance.Method(0)).With(lambda);12            Console.WriteLine(instance.Method(1));13        }14    }15    {16        public virtual int Method(int x)17        {18            return x;19        }20    }21}22{23    using System;24    using System.Linq;25    using System.Linq.Expressions;26    using Microsoft.VisualStudio.TestTools.UnitTesting;27    {28        public void ShouldReplaceExpression()29        {30            ExpressionReplacer.ReplaceExpression();31            var instance = new Mocked();32            Assert.AreEqual(2, instance.Method(1));33        }34    }35}

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