System.Reflection.Emit.MethodBuilder.SetReturnType C# (CSharp) Method

        public void SetReturnType(System.Type returnType) { }
        public void SetSignature(System.Type returnType, System.Type[] returnTypeRequiredCustomModifiers, System.Type[] returnTypeOptionalCustomModifiers, System.Type[] parameterTypes, System.Type[][] parameterTypeRequiredCustomModifiers, System.Type[][] parameterTypeOptionalCustomModifiers) { }

        /// <summary>
        /// Copies the method signature from one method to another.
        /// This includes generic parameters, constraints and parameters.
        /// </summary>
        /// <param name="sourceMethod">The source method.</param>
        /// <param name="targetMethod">The target method.</param>
        internal static void CopyMethodSignature(MethodInfo sourceMethod, MethodBuilder targetMethod)
        {
            CopyGenericSignature(sourceMethod, targetMethod);

            targetMethod.SetReturnType(sourceMethod.ReturnType);

            // copy the parameters and attributes
            // it seems that we can use the source parameters directly because the target method is derived
            // from the source method
            var parameters = sourceMethod.GetParameters();
            targetMethod.SetParameters(parameters.Select(p => p.ParameterType).ToArray());

            for (int i = 0; i < parameters.Length; i++)
            {
                var parameter = parameters[i];
                targetMethod.DefineParameter(i + 1, parameter.Attributes, parameter.Name);
            }
        }