CIL Tools

License: BSD 2.0

Documentation | Examples

CIL tools is a set of software to work with Common Intermediate Language in .NET.

Libraries:

• CilTools.BytecodeAnalysis - inspect or disassemble bytecode of methods
• CilTools.Runtime - inspect assemblies from external .NET process
• CilTools.Metadata - inspect assembly via reflection without loading it into the current process
• CilTools.SourceCode - provides APIs that assist in lexical analysis of source code

Applications:

• CilTools.CommandLine - cross-platform command line disassembler tool
• CIL View - graphical CIL viewer application for Windows

Using CilTools.BytecodeAnalysis

Requirements: .NET Framework 3.5+ or .NET Standard 2.0+

CilTools.BytecodeAnalysis reads .NET methods’ Common Intermediate Language (CIL) bytecode and converts it into high-level objects or textual CIL representation so they can be easily studied and programmatically processed.

Usage

Add reference to CilTools.BytecodeAnalysis.dll, import CilTools.BytecodeAnalysis namespace. Use CilReader.GetInstructions to get the collection of instructions from method, CilGraph.Create to get a graph that represents a flow of control between method’s instructions, or CilAnalysis.MethodToText when you need to output method’s CIL code as text. CilTools.BytecodeAnalysis.Extensions namespace provides an alternative syntax via extension methods.

Example

using System;
using System.Collections.Generic;
using CilTools.BytecodeAnalysis;
using CilTools.BytecodeAnalysis.Extensions;

namespace CilToolsExample
{
    class Program
    {
        public static void Hello()
        {
            int a = 1;
            int b = 2;
            Console.WriteLine("Hello, World");
            Console.WriteLine("{0} + {1} = {2}",a,b,a+b);
        }

        static void Main(string[] args)
        {
            IEnumerable<CilInstruction> instructions = typeof(Program).GetMethod("Hello").GetInstructions();

            foreach (CilInstruction instr in instructions)
            {
                Console.WriteLine(instr.ToString());
            }
            Console.ReadKey();
        }

    }
}

/* Output:

nop
ldc.i4.1
stloc.0
ldc.i4.2
stloc.1
ldstr      "Hello, World"
call       void [mscorlib]System.Console::WriteLine(string)
nop
ldstr      "{0} \053 {1} \075 {2}"
ldloc.0
box        [mscorlib]System.Int32
ldloc.1
box        [mscorlib]System.Int32
ldloc.0
ldloc.1
add
box        [mscorlib]System.Int32
call       void [mscorlib]System.Console::WriteLine(string, object, object, object)
nop
ret
*/

For more information, see documentation.

Copyright (c) 2023, SmallSoft