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Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST
IfNullExpression

How to use IfNullExpression class of Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST package

Best JustMockLite code snippet using Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST.IfNullExpression

MethodWithInvocationGenerator.cs

Source:MethodWithInvocationGenerator.cs

...118				if (emitter.ReturnType.GetTypeInfo().IsValueType && !emitter.ReturnType.IsNullableType())119				{120					LocalReference returnValue = emitter.CodeBuilder.DeclareLocal(typeof(object));121					emitter.CodeBuilder.AddStatement(new AssignStatement(returnValue, getRetVal));122					emitter.CodeBuilder.AddExpression(new IfNullExpression(returnValue, new ThrowStatement(typeof(InvalidOperationException),123						"Interceptors failed to set a return value, or swallowed the exception thrown by the target")));124				}125				// Emit code to return with cast from ReturnValue126				emitter.CodeBuilder.AddStatement(new ReturnStatement(new ConvertExpression(emitter.ReturnType, getRetVal)));127			}128			else129			{130				emitter.CodeBuilder.AddStatement(new ReturnStatement());131			}132			return emitter;133		}134		private Expression SetMethodInterceptors(ClassEmitter @class, INamingScope namingScope, MethodEmitter emitter, Expression proxiedMethodTokenExpression)135		{136			var selector = @class.GetField("__selector");137			if(selector == null)138			{139				return null;140			}141			var methodInterceptorsField = BuildMethodInterceptorsField(@class, MethodToOverride, namingScope);142			Expression targetTypeExpression;143			if (getTargetTypeExpression != null)144			{145				targetTypeExpression = getTargetTypeExpression(@class, MethodToOverride);146			}147			else148			{149				targetTypeExpression = new MethodInvocationExpression(null, TypeUtilMethods.GetTypeOrNull, getTargetExpression(@class, MethodToOverride));150			}151			var emptyInterceptors = new NewArrayExpression(0, typeof(IInterceptor));152			var selectInterceptors = new MethodInvocationExpression(selector, InterceptorSelectorMethods.SelectInterceptors,153			                                                        targetTypeExpression,154			                                                        proxiedMethodTokenExpression, interceptors.ToExpression())155			{ VirtualCall = true };156			emitter.CodeBuilder.AddExpression(157				new IfNullExpression(methodInterceptorsField,158				                     new AssignStatement(methodInterceptorsField,159				                                         new NullCoalescingOperatorExpression(selectInterceptors, emptyInterceptors))));160			return methodInterceptorsField.ToExpression();161		}162		private void EmitLoadGenricMethodArguments(MethodEmitter methodEmitter, MethodInfo method, Reference invocationLocal)163		{164			var genericParameters = method.GetGenericArguments().FindAll(t => t.GetTypeInfo().IsGenericParameter);165			var genericParamsArrayLocal = methodEmitter.CodeBuilder.DeclareLocal(typeof(Type[]));166			methodEmitter.CodeBuilder.AddStatement(167				new AssignStatement(genericParamsArrayLocal, new NewArrayExpression(genericParameters.Length, typeof(Type))));168			for (var i = 0; i < genericParameters.Length; ++i)169			{170				methodEmitter.CodeBuilder.AddStatement(171					new AssignArrayStatement(genericParamsArrayLocal, i, new TypeTokenExpression(genericParameters[i])));...

OptionallyForwardingMethodGenerator.cs

Source:OptionallyForwardingMethodGenerator.cs

...33		{34			var targetReference = getTargetReference(@class, MethodToOverride);35			emitter.CodeBuilder.AddStatement(36				new ExpressionStatement(37					new IfNullExpression(targetReference, IfNull(emitter.ReturnType), IfNotNull(targetReference))));38			return emitter;39		}40		private Expression IfNotNull(Reference targetReference)41		{42			var expression = new MultiStatementExpression();43			var arguments = ArgumentsUtil.ConvertToArgumentReferenceExpression(MethodToOverride.GetParameters());44			expression.AddStatement(new ReturnStatement(45			                        	new MethodInvocationExpression(46			                        		targetReference,47			                        		MethodToOverride,48			                        		arguments) { VirtualCall = true }));49			return expression;50		}51		private Expression IfNull(Type returnType)...

IfNullExpression.cs

Source:IfNullExpression.cs

...14namespace Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST15{16	using System;17	using System.Reflection.Emit;18	internal class IfNullExpression : Expression19	{20		private readonly IILEmitter ifNotNull;21		private readonly IILEmitter ifNull;22		private readonly Reference reference;23		private readonly Expression expression;24		public IfNullExpression(Reference reference, IILEmitter ifNull, IILEmitter ifNotNull = null)25		{26			this.reference = reference ?? throw new ArgumentNullException(nameof(reference));27			this.ifNull = ifNull;28			this.ifNotNull = ifNotNull;29		}30		public IfNullExpression(Expression expression, IILEmitter ifNull, IILEmitter ifNotNull = null)31		{32			this.expression = expression ?? throw new ArgumentNullException(nameof(expression));33			this.ifNull = ifNull;34			this.ifNotNull = ifNotNull;35		}36		public override void Emit(IMemberEmitter member, ILGenerator gen)37		{38			if (reference != null)39			{40				ArgumentsUtil.EmitLoadOwnerAndReference(reference, gen);41			}42			else if (expression != null)43			{44				expression.Emit(member, gen);...

IfNullExpression

Using AI Code Generation

1using Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST;2using System;3{4    {5        static void Main(string[] args)6        {7            var ifNullExpression = new IfNullExpression();8            Console.WriteLine(ifNullExpression.ToString());9        }10    }11}12using Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST;13using System;14{15    {16        static void Main(string[] args)17        {18            var ifNullExpression = new IfNullExpression();19            Console.WriteLine(ifNullExpression.ToString());20        }21    }22}

IfNullExpression

Using AI Code Generation

1using Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST;2{3    {4        static void Main(string[] args)5        {6            var ifNullExpression = new IfNullExpression(null, null);7        }8    }9}10Error	CS0234	The type or namespace name 'SimpleAST' does not exist in the namespace 'Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters' (are you missing an assembly reference?)

IfNullExpression

Using AI Code Generation

1using Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST;2using Telerik.JustMock.Core;3{4    {5        static void Main(string[] args)6        {7            var mock = Mock.Create<IFoo>();8            var ifNullExpression = new IfNullExpression(new ReferenceExpression("foo"));9            var statement = ifNullExpression.ToStatement();10            var method = MockingUtil.GetMockingContext(mock).GetMockedType().GetMethod("Bar");11            var methodInfo = new MethodEmitter(method);12            var ilGenerator = methodInfo.GetILGenerator();13            statement.Emit(ilGenerator);14            ilGenerator.Emit(OpCodes.Ret);15            mock.Bar();16        }17    }18    {19        void Bar();20    }21}22Hello,I am trying to use the IfNullExpression class from the Telerik.JustMock.Core.Castle.DynamicProxy.Generators.Emitters.SimpleAST namespace to generate a conditional statement in my unit test. However, I am getting the following error when I try to compile the code:Error 1 The type or namespace name 'IfNullExpression' could not be found (are you missing a using directive or an assembly reference?)I have tried to reference all the Telerik.JustMock.Core.dll, Telerik.JustMock.Core.Castle.Core.dll, Telerik.JustMock.Core.Castle.DynamicProxy.dll, Telerik.JustMock.Core.Castle.DynamicProxy2.dll, and Telerik.JustMock.Core.Castle.Core.dll assemblies in my project, but I am still getting the error. I have also tried to reference the Telerik.JustMock.dll assembly, but I am getting the following error:Error 2 The type or namespace name 'MockingUtil' could not be found (are you missing a using directive or an assembly reference?)I am using Visual Studio 2010 and Telerik JustMock 2012.2.1011.3. I have also tried to use the Telerik.JustMock.dll assembly in another project, but I am getting the same error. I am attaching a sample project that reproduces the issue. Could you please help me with this issue?Regards,Georgi Tunevthe Telerik team

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