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How to use AssemblyDiffingPass class of Microsoft.Coyote.Rewriting package

Best Coyote code snippet using Microsoft.Coyote.Rewriting.AssemblyDiffingPass

AssemblyDiffingPass.cs

Source:AssemblyDiffingPass.cs

...13{14    /// <summary>15    /// A pass that diffs the IL contents of assemblies and returns them as JSON.16    /// </summary>17    internal class AssemblyDiffingPass : Pass18    {19        /// <summary>20        /// Map from assemblies to IL contents.21        /// </summary>22        private Dictionary<string, AssemblyContents> ContentMap;23        /// <summary>24        /// Initializes a new instance of the <see cref="AssemblyDiffingPass"/> class.25        /// </summary>26        internal AssemblyDiffingPass(IEnumerable<AssemblyInfo> visitedAssemblies, ILogger logger)27            : base(visitedAssemblies, logger)28        {29            this.ContentMap = new Dictionary<string, AssemblyContents>();30        }31        /// <inheritdoc/>32        protected internal override void VisitAssembly(AssemblyInfo assembly)33        {34            if (!this.ContentMap.ContainsKey(assembly.FullName))35            {36                var contents = new AssemblyContents()37                {38                    FullName = assembly.FullName,39                    Modules = new List<ModuleContents>()40                };41                this.ContentMap.Add(assembly.FullName, contents);42            }43            base.VisitAssembly(assembly);44        }45        /// <inheritdoc/>46        protected internal override void VisitModule(ModuleDefinition module)47        {48            if (this.ContentMap.TryGetValue(this.Assembly.FullName, out AssemblyContents contents))49            {50                contents.Modules.Add(new ModuleContents()51                {52                    Name = module.Name,53                    Types = new List<TypeContents>()54                });55            }56            base.VisitModule(module);57        }58        /// <inheritdoc/>59        protected internal override void VisitType(TypeDefinition type)60        {61            if (this.ContentMap.TryGetValue(this.Assembly.FullName, out AssemblyContents contents))62            {63                contents.Modules.FirstOrDefault(m => m.Name == this.Module.Name)?.Types.Add(64                    new TypeContents()65                    {66                        FullName = type.FullName,67                        Methods = new List<MethodContents>()68                    });69            }70            base.VisitType(type);71        }72        /// <inheritdoc/>73        protected internal override void VisitField(FieldDefinition field)74        {75            if (this.ContentMap.TryGetValue(this.Assembly.FullName, out AssemblyContents contents))76            {77                contents.Modules.FirstOrDefault(m => m.Name == this.Module.Name)?.Types78                    .FirstOrDefault(t => t.FullName == this.TypeDef.FullName)?79                    .AddField(field);80            }81            base.VisitField(field);82        }83        /// <inheritdoc/>84        protected internal override void VisitMethod(MethodDefinition method)85        {86            if (this.ContentMap.TryGetValue(this.Assembly.FullName, out AssemblyContents contents))87            {88                contents.Modules.FirstOrDefault(m => m.Name == this.Module.Name)?.Types89                    .FirstOrDefault(t => t.FullName == this.TypeDef.FullName)?.Methods90                    .Add(new MethodContents()91                    {92                        Index = this.TypeDef.Methods.IndexOf(method),93                        Name = method.Name,94                        FullName = method.FullName,95                        Instructions = new List<string>()96                    });97            }98            base.VisitMethod(method);99        }100        /// <inheritdoc/>101        protected override void VisitVariable(VariableDefinition variable)102        {103            if (this.ContentMap.TryGetValue(this.Assembly.FullName, out AssemblyContents contents))104            {105                contents.Modules.FirstOrDefault(m => m.Name == this.Module.Name)?.Types106                    .FirstOrDefault(t => t.FullName == this.TypeDef.FullName)?.Methods107                    .FirstOrDefault(m => m.FullName == this.Method.FullName)?108                    .AddVariable(variable);109            }110            base.VisitVariable(variable);111        }112        /// <inheritdoc/>113        protected override Instruction VisitInstruction(Instruction instruction)114        {115            if (this.ContentMap.TryGetValue(this.Assembly.FullName, out AssemblyContents contents))116            {117                contents.Modules.FirstOrDefault(m => m.Name == this.Module.Name)?.Types118                    .FirstOrDefault(t => t.FullName == this.TypeDef.FullName)?.Methods119                    .FirstOrDefault(m => m.FullName == this.Method.FullName)?.Instructions120                    .Add(instruction.ToString());121            }122            return base.VisitInstruction(instruction);123        }124        /// <summary>125        /// Returns the diff between the IL contents of this pass against the specified pass as JSON.126        /// </summary>127        internal string GetDiffJson(AssemblyInfo assembly, AssemblyDiffingPass pass)128        {129            if (!this.ContentMap.TryGetValue(assembly.FullName, out AssemblyContents thisContents) ||130                !pass.ContentMap.TryGetValue(assembly.FullName, out AssemblyContents otherContents))131            {132                this.Logger.WriteLine(LogSeverity.Error, "Unable to diff IL code that belongs to different assemblies.");133                return string.Empty;134            }135            // Diff contents of the two assemblies.136            var diffedContents = thisContents.Diff(otherContents);137            return this.GetJson(diffedContents);138        }139        /// <summary>140        /// Returns the IL contents of the specified assembly as JSON.141        /// </summary>...

RewritingEngine.cs

Source:RewritingEngine.cs

...131            this.Passes.AddLast(new ExceptionFilterRewritingPass(assemblies, this.Logger));132            if (this.Options.IsLoggingAssemblyContents || this.Options.IsDiffingAssemblyContents)133            {134                // Parsing the contents of an assembly must happen before and after any other pass.135                this.Passes.AddFirst(new AssemblyDiffingPass(assemblies, this.Logger));136                this.Passes.AddLast(new AssemblyDiffingPass(assemblies, this.Logger));137            }138        }139        /// <summary>140        /// Rewrites the specified assembly.141        /// </summary>142        private void RewriteAssembly(AssemblyInfo assembly, string outputPath)143        {144            try145            {146                this.Logger.WriteLine($"... Rewriting the '{assembly.Name}' assembly ({assembly.FullName})");147                if (assembly.IsRewritten)148                {149                    this.Logger.WriteLine($"..... Skipping as assembly is already rewritten with matching signature");150                    return;151                }152                // Traverse the assembly to invoke each pass.153                foreach (var pass in this.Passes)154                {155                    Debug.WriteLine($"..... Invoking the '{pass.GetType().Name}' pass");156                    assembly.Invoke(pass);157                }158                // Apply the rewriting signature to the assembly metadata.159                assembly.ApplyRewritingSignatureAttribute(GetAssemblyRewriterVersion());160                // Write the binary in the output path with portable symbols enabled.161                string resolvedOutputPath = this.Options.IsReplacingAssemblies() ? assembly.FilePath : outputPath;162                this.Logger.WriteLine($"..... Writing the modified '{assembly.Name}' assembly to {resolvedOutputPath}");163                assembly.Write(outputPath);164                if (this.Options.IsLoggingAssemblyContents)165                {166                    // Write the IL before and after rewriting to a JSON file.167                    this.WriteILToJson(assembly, false, resolvedOutputPath);168                    this.WriteILToJson(assembly, true, resolvedOutputPath);169                }170                if (this.Options.IsDiffingAssemblyContents)171                {172                    // Write the IL diff before and after rewriting to a JSON file.173                    this.WriteILDiffToJson(assembly, resolvedOutputPath);174                }175            }176            finally177            {178                assembly.Dispose();179            }180            if (this.Options.IsReplacingAssemblies())181            {182                string targetPath = Path.Combine(this.Options.AssembliesDirectory, assembly.Name);183                this.CopyWithRetriesAsync(outputPath, assembly.FilePath).Wait();184                if (assembly.IsSymbolFileAvailable())185                {186                    string pdbFile = Path.ChangeExtension(outputPath, "pdb");187                    string targetPdbFile = Path.ChangeExtension(targetPath, "pdb");188                    this.CopyWithRetriesAsync(pdbFile, targetPdbFile).Wait();189                }190            }191        }192        /// <summary>193        /// Writes the original or rewritten IL to a JSON file in the specified output path.194        /// </summary>195        internal void WriteILToJson(AssemblyInfo assembly, bool isRewritten, string outputPath)196        {197            var diffingPass = (isRewritten ? this.Passes.Last : this.Passes.First).Value as AssemblyDiffingPass;198            if (diffingPass != null)199            {200                string json = diffingPass.GetJson(assembly);201                if (!string.IsNullOrEmpty(json))202                {203                    string jsonFile = Path.ChangeExtension(outputPath, $".{(isRewritten ? "rw" : "il")}.json");204                    this.Logger.WriteLine($"..... Writing the {(isRewritten ? "rewritten" : "original")} IL " +205                        $"of '{assembly.Name}' as JSON to {jsonFile}");206                    File.WriteAllText(jsonFile, json);207                }208            }209        }210        /// <summary>211        /// Writes the IL diff to a JSON file in the specified output path.212        /// </summary>213        internal void WriteILDiffToJson(AssemblyInfo assembly, string outputPath)214        {215            var originalDiffingPass = this.Passes.First.Value as AssemblyDiffingPass;216            var rewrittenDiffingPass = this.Passes.Last.Value as AssemblyDiffingPass;217            if (originalDiffingPass != null && rewrittenDiffingPass != null)218            {219                // Compute the diff between the original and rewritten IL and dump it to JSON.220                string diffJson = originalDiffingPass.GetDiffJson(assembly, rewrittenDiffingPass);221                if (!string.IsNullOrEmpty(diffJson))222                {223                    string jsonFile = Path.ChangeExtension(outputPath, ".diff.json");224                    this.Logger.WriteLine($"..... Writing the IL diff of '{assembly.Name}' as JSON to {jsonFile}");225                    File.WriteAllText(jsonFile, diffJson);226                }227            }228        }229        /// <summary>230        /// Checks if the specified assembly has been already rewritten with the current version....

AssemblyDiffingPass

Using AI Code Generation

1using Microsoft.Coyote.Rewriting;2using System;3using System.Reflection;4{5    {6        static void Main(string[] args)7        {8            var assembly = Assembly.LoadFrom(@"C:\Users\A\Desktop\2.dll");9            var assemblyDiffingPass = new AssemblyDiffingPass(assembly, "ConsoleApp1.Program");10            assemblyDiffingPass.Execute();11        }12    }13}

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