StackOperations.cs

using System.Reflection.Emit;
using JetBrains.Annotations;

namespace ILGeneratorExtensions
{
    /// <summary>
    /// Contains extension methods for performing stack manipulation
    /// </summary>
    [PublicAPI]
    public static class StackOperations
    {
        /// <summary>
        /// Pops the top value off the evaluation stack and discards it
        /// </summary>
        /// <param name="generator">The <see cref="T:System.Reflection.Emit.ILGenerator" /> to emit instructions from</param>
        [PublicAPI]
        public static ILGenerator Pop(this ILGenerator generator) => generator.FluentEmit(OpCodes.Pop);

        /// <summary>
        /// Pops <paramref name="n"/> values off the evaluation stack and discards them
        /// </summary>
        /// <param name="generator">The <see cref="T:System.Reflection.Emit.ILGenerator" /> to emit instructions from</param>
        /// <param name="n">The number of evaluation stack values to discard</param>
        [PublicAPI]
        public static ILGenerator Pop(this ILGenerator generator, uint n)
        {
            for (int i = 0; i < n; i++)
            {
                generator.FluentEmit(OpCodes.Pop);
            }

            return generator;
        }

        /// <summary>
        /// Duplicates the value on the top of the evaluation stack
        /// </summary>
        /// <param name="generator">The <see cref="T:System.Reflection.Emit.ILGenerator" /> to emit instructions from</param>
        [PublicAPI]
        public static ILGenerator Duplicate(this ILGenerator generator) => generator.FluentEmit(OpCodes.Dup);

        /// <summary>
        /// Duplicates the value on the top of the evaluation stack <paramref name="n"/> times
        /// </summary>
        /// <param name="generator">The <see cref="T:System.Reflection.Emit.ILGenerator" /> to emit instructions from</param>
        /// <param name="n">The number of times to duplicate the value</param>
        [PublicAPI]
        public static ILGenerator Duplicate(this ILGenerator generator, uint n)
        {
            for (int i = 0; i < n; i++)
            {
                generator.FluentEmit(OpCodes.Dup);
            }

            return generator;
        }
    }
}