AsmResolver.Tests.Net.MsilAssemblerTests.SwitchTest C# (CSharp) Метод

        public void SwitchTest()
        {
            // set up temp assembly.
            var assembly = Utilities.CreateTempNetAssembly();
            var tableStream = assembly.NetDirectory.MetadataHeader.GetStream<TableStream>();
            var methodTable = tableStream.GetTable<MethodDefinition>();

            // write code.
            var body = methodTable[0].MethodBody;
            body.Instructions.Clear();

            var targets = new[]
            {
                MsilInstruction.Create(MsilOpCodes.Nop),
                MsilInstruction.Create(MsilOpCodes.Nop),
                MsilInstruction.Create(MsilOpCodes.Nop),
                MsilInstruction.Create(MsilOpCodes.Nop),
            };
            var end = MsilInstruction.Create(MsilOpCodes.Ret);

            body.Instructions.Add(MsilInstruction.Create(MsilOpCodes.Ldc_I4_1));
            body.Instructions.Add(MsilInstruction.Create(MsilOpCodes.Switch, targets));
            foreach (var target in targets)
            {
                body.Instructions.Add(target);
                body.Instructions.Add(MsilInstruction.Create(MsilOpCodes.Br, end));
            }

            body.Instructions.Add(end);

            body.CalculateOffsets();

            // build and validate.
            assembly = Utilities.RebuildNetAssembly(assembly);
            methodTable = assembly.NetDirectory.MetadataHeader.GetStream<TableStream>().GetTable<MethodDefinition>();

            var operand = methodTable[0].MethodBody.Instructions[1].Operand;
            Assert.IsInstanceOfType(operand, typeof(MsilInstruction[]));
            var newTargets = (MsilInstruction[])operand;
            Assert.AreEqual(targets.Length, newTargets.Length);
            for (int i = 0; i < targets.Length; i++)
                Assert.AreEqual(targets[i].Offset, newTargets[i].Offset);
        }