Example #1
0
        private void MethodResolver(MethodContext context)
        {
            if (context.Method == GetMethod <ResolveILTests>(nameof(BodyEmpty)))
            {
                byte[] assertToken = BitConverter.GetBytes(AssertTrue.MetadataToken);

                //{
                //  Assert.True(true);
                //}
                List <byte> il = new List <byte>
                {
                    (byte)OpCodes.Ldc_I4_1.Value,
                    (byte)OpCodes.Call.Value
                };

                il.AddRange(assertToken);
                il.Add((byte)OpCodes.Ret.Value);

                context.ResolveIL(il);
            }
            else if (context.Method == GetMethod <ResolveILTests>(nameof(LocalVariable)))
            {
                byte[] assertToken    = BitConverter.GetBytes(AssertTrue.MetadataToken);
                byte[] ceqInstruction = BitConverter.GetBytes(OpCodes.Ceq.Value).Reverse().ToArray();

                //{
                //  short v1 = short.MaxValue;
                //  short v2 = short.MaxValue;
                //  Assert.True(v1+v2+1 == ushort.MaxValue);
                //}
                List <byte> il = new List <byte>
                {
                    (byte)OpCodes.Ldc_I4.Value, 0xFF, 0x7F, 0x00, 0x00, //32767
                    (byte)OpCodes.Stloc_0.Value,

                    (byte)OpCodes.Ldc_I4.Value, 0xFF, 0x7F, 0x00, 0x00,  //32767
                    (byte)OpCodes.Stloc_1.Value,

                    (byte)OpCodes.Ldloc_0.Value,
                    (byte)OpCodes.Ldloc_1.Value,
                    (byte)OpCodes.Add.Value,
                    (byte)OpCodes.Ldc_I4_1.Value,
                    (byte)OpCodes.Add.Value,
                    (byte)OpCodes.Ldc_I4.Value,
                    0xFF, 0xFF, 0x00, 0x00, //65535
                };

                il.AddRange(ceqInstruction);
                il.Add((byte)OpCodes.Call.Value);
                il.AddRange(assertToken);
                il.Add((byte)OpCodes.Ret.Value);

                MethodBody methodBody = new MethodBody(il, context.Method.Module, typeof(int), typeof(int));
                context.ResolveBody(methodBody);
            }
        }