6ddb502e96
Replace the deeply nested ternaries in TypeInfo with if-statements for clarity. Remove in/out from CSharpName, keeping it only on immediate type params in CSharpTypeDeclarationName (refactored to a method). Rearrange name-related properties and methods to group them all together into a region for easier navigation.
669 lines
35 KiB
C#
669 lines
35 KiB
C#
// Copyright (c) 2017-2020 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
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// All rights reserved
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Il2CppInspector.Properties;
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using Il2CppInspector.Reflection;
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using Assembly = Il2CppInspector.Reflection.Assembly;
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using CustomAttributeData = Il2CppInspector.Reflection.CustomAttributeData;
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using MethodInfo = Il2CppInspector.Reflection.MethodInfo;
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using TypeInfo = Il2CppInspector.Reflection.TypeInfo;
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namespace Il2CppInspector.Outputs
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{
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public class CSharpCodeStubs
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{
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private readonly Il2CppModel model;
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// Namespace prefixes whose contents should be skipped
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public List<string> ExcludedNamespaces { get; set; }
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// Make adjustments to ensure that the generated code compiles
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public bool MustCompile { get; set; }
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// Suppress binary metadata in code comments
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public bool SuppressMetadata { get; set; }
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private const string CGAttribute = "System.Runtime.CompilerServices.CompilerGeneratedAttribute";
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private const string FBAttribute = "System.Runtime.CompilerServices.FixedBufferAttribute";
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private const string ExtAttribute = "System.Runtime.CompilerServices.ExtensionAttribute";
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private const string DMAttribute = "System.Reflection.DefaultMemberAttribute";
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// Assembly attributes we have already emitted
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private HashSet<CustomAttributeData> usedAssemblyAttributes = new HashSet<CustomAttributeData>();
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private readonly object usedAssemblyAttributesLock = new object();
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public CSharpCodeStubs(Il2CppModel model) => this.model = model;
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public void WriteSingleFile(string outFile) => WriteSingleFile(outFile, t => t.Index);
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public void WriteSingleFile<TKey>(string outFile, Func<TypeInfo, TKey> orderBy) {
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usedAssemblyAttributes.Clear();
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writeFile(outFile, model.Assemblies.SelectMany(x => x.DefinedTypes).OrderBy(orderBy));
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}
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public void WriteFilesByNamespace<TKey>(string outPath, Func<TypeInfo, TKey> orderBy, bool flattenHierarchy) {
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usedAssemblyAttributes.Clear();
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Parallel.ForEach(model.Assemblies.SelectMany(x => x.DefinedTypes).GroupBy(t => t.Namespace), ns => {
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var relPath = !string.IsNullOrEmpty(ns.Key) ? ns.Key : "global";
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writeFile(Path.Combine(outPath, (flattenHierarchy ? relPath : Path.Combine(relPath.Split('.'))) + ".cs"),
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ns.OrderBy(orderBy));
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});
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}
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public void WriteFilesByAssembly<TKey>(string outPath, Func<TypeInfo, TKey> orderBy, bool separateAttributes) {
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usedAssemblyAttributes.Clear();
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Parallel.ForEach(model.Assemblies, asm => {
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// Sort namespaces into alphabetical order, then sort types within the namespaces by the specified sort function
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if (writeFile(Path.Combine(outPath, Path.GetFileNameWithoutExtension(asm.ShortName) + ".cs"), asm.DefinedTypes.OrderBy(t => t.Namespace).ThenBy(orderBy), outputAssemblyAttributes: !separateAttributes)
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&& separateAttributes) {
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File.WriteAllText(Path.Combine(outPath, $"AssemblyInfo_{Path.GetFileNameWithoutExtension(asm.ShortName)}.cs"), generateAssemblyInfo(new [] {asm}));
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}
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});
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}
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public void WriteFilesByClass(string outPath, bool flattenHierarchy) {
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usedAssemblyAttributes.Clear();
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Parallel.ForEach(model.Assemblies.SelectMany(x => x.DefinedTypes), type => {
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string relPath = $"{type.Namespace}{(type.Namespace.Length > 0 ? "." : "")}{Regex.Replace(type.Name, "`[0-9]", "")}";
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writeFile(Path.Combine(outPath, flattenHierarchy ? relPath : Path.Combine(relPath.Split('.')) + ".cs"), new[] {type});
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});
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}
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public HashSet<Assembly> WriteFilesByClassTree(string outPath, bool separateAttributes) {
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usedAssemblyAttributes.Clear();
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var usedAssemblies = new HashSet<Assembly>();
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// Each thread tracks its own list of used assemblies and they are merged as each thread completes
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Parallel.ForEach(model.Assemblies.SelectMany(x => x.DefinedTypes),
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() => new HashSet<Assembly>(),
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(type, _, used) => {
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string relPath = Path.Combine($"{type.Namespace}{(type.Namespace.Length > 0 ? "." : "")}{Regex.Replace(type.Name, "`[0-9]", "")}".Split('.'));
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if (writeFile(Path.Combine(outPath, Path.GetFileNameWithoutExtension(type.Assembly.ShortName), $"{relPath}.cs"), new[] {type}, outputAssemblyAttributes: !separateAttributes))
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used.Add(type.Assembly);
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return used;
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},
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usedPartition => {
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lock (usedAssemblies) usedAssemblies.UnionWith(usedPartition);
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}
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);
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if (separateAttributes && usedAssemblies.Any())
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foreach (var asm in usedAssemblies)
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File.WriteAllText(Path.Combine(outPath, Path.GetFileNameWithoutExtension(asm.ShortName), "AssemblyInfo.cs"), generateAssemblyInfo(new [] {asm}));
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return usedAssemblies;
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}
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// Create a Visual Studio solution
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public void WriteSolution(string outPath, string unityPath, string unityAssembliesPath) {
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// Required settings
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MustCompile = true;
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// Output source files in tree format with separate assembly attributes
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var assemblies = WriteFilesByClassTree(outPath, true);
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// Per-project (per-assembly) solution definition and configuration
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var slnProjectDefs = new StringBuilder();
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var slnProjectConfigs = new StringBuilder();
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foreach (var asm in assemblies) {
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var guid = Guid.NewGuid();
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var name = Path.GetFileNameWithoutExtension(asm.ShortName);
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var csProjFile = Path.Combine(name, $"{name}.csproj");
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var def = Resources.SlnProjectDefinition
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.Replace("%PROJECTGUID%", guid.ToString())
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.Replace("%PROJECTNAME%", name)
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.Replace("%CSPROJRELATIVEPATH%", csProjFile);
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slnProjectDefs.Append(def);
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var config = Resources.SlnProjectConfiguration
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.Replace("%PROJECTGUID%", guid.ToString());
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slnProjectConfigs.Append(config);
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// Determine all the assemblies on which this assembly depends
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var dependencyTypes = asm.DefinedTypes.SelectMany(t => t.GetAllTypeReferences())
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.Union(asm.CustomAttributes.SelectMany(a => a.AttributeType.GetAllTypeReferences()))
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.Distinct();
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var dependencyAssemblies = dependencyTypes.Select(t => t.Assembly).Distinct()
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.Except(new[] {asm});
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// Only create project references to those assemblies actually output in our solution
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dependencyAssemblies = dependencyAssemblies.Intersect(assemblies);
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var referenceXml = string.Concat(dependencyAssemblies.Select(
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a => $@" <ProjectReference Include=""..\{a.ShortName.Replace(".dll", "")}\{a.ShortName.Replace(".dll", "")}.csproj""/>" + "\n"
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));
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// Create a .csproj file using the project Guid
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var csProj = Resources.CsProjTemplate
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.Replace("%PROJECTGUID%", guid.ToString())
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.Replace("%ASSEMBLYNAME%", name)
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.Replace("%UNITYPATH%", unityPath)
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.Replace("%SCRIPTASSEMBLIES%", unityAssembliesPath)
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.Replace("%PROJECTREFERENCES%", referenceXml);
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File.WriteAllText(Path.Combine(outPath, csProjFile), csProj);
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}
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// Merge everything into .sln file
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var sln = Resources.SlnTemplate
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.Replace("%PROJECTDEFINITIONS%", slnProjectDefs.ToString())
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.Replace("%PROJECTCONFIGURATIONS%", slnProjectConfigs.ToString());
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var filename = Path.GetFileName(outPath);
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if (filename == "")
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filename = "Il2CppProject";
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File.WriteAllText(Path.Combine(outPath, $"{filename}.sln"), sln);
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}
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private bool writeFile(string outFile, IEnumerable<TypeInfo> types, bool useNamespaceSyntax = true, bool outputAssemblyAttributes = true) {
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var nsRefs = new HashSet<string>();
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var code = new StringBuilder();
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var nsContext = "";
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var usedTypes = new List<TypeInfo>();
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// Determine all namespace references (note: this may include some that aren't actually used due to output suppression in generateType()
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// We have to do this first so that we can generate properly scoped type references in the code
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foreach (var type in types) {
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var refs = type.GetAllTypeReferences();
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var ns = refs.Where(r => !string.IsNullOrEmpty(r.Namespace) && r.Namespace != type.Namespace).Select(r => r.Namespace);
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nsRefs.UnionWith(ns);
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}
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// Determine assemblies used in this file
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var assemblies = types.Select(t => t.Assembly).Distinct();
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// Add assembly attribute namespaces to reference list
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if (outputAssemblyAttributes)
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nsRefs.UnionWith(assemblies.SelectMany(a => a.CustomAttributes).Select(a => a.AttributeType.Namespace));
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// Generate each type
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foreach (var type in types) {
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// Skip namespace and any children if requested
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if (ExcludedNamespaces?.Any(x => x == type.Namespace || type.Namespace.StartsWith(x + ".")) ?? false)
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continue;
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// Don't output global::Locale if desired
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if (MustCompile
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&& type.Name == "Locale" && type.Namespace == string.Empty
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&& type.BaseType.FullName == "System.Object"
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&& type.IsClass && type.IsSealed && type.IsNotPublic && !type.ContainsGenericParameters
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&& type.DeclaredMembers.Count == type.DeclaredMethods.Count
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&& type.GetMethods("GetText").Length == type.DeclaredMethods.Count)
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continue;
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// Assembly.DefinedTypes returns nested types in the assembly by design - ignore them
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if (type.IsNested)
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continue;
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// Get code
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var text = generateType(type, nsRefs);
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if (string.IsNullOrEmpty(text))
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continue;
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// Determine if we need to change namespace (after we have established the code block is not empty)
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if (useNamespaceSyntax) {
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if (type.Namespace != nsContext) {
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if (!string.IsNullOrEmpty(nsContext))
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code.Remove(code.Length - 1, 1).Append("}\n\n");
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if (!string.IsNullOrEmpty(type.Namespace))
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code.Append("namespace " + type.Namespace + "\n{\n");
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nsContext = type.Namespace;
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}
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if (!string.IsNullOrEmpty(nsContext)) {
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text = "\t" + text.Replace("\n", "\n\t");
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text = text.Remove(text.Length - 1);
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}
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}
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// Append namespace
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if (!useNamespaceSyntax)
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code.Append($"// Namespace: {(!string.IsNullOrEmpty(type.Namespace) ? type.Namespace : "<global namespace>")}\n");
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// Append type definition
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code.Append(text + "\n");
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// Add to list of used types
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usedTypes.Add(type);
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}
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// Stop if nothing to output
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if (!usedTypes.Any())
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return false;
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// Close namespace
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if (useNamespaceSyntax && !string.IsNullOrEmpty(nsContext))
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code.Remove(code.Length - 1, 1).Append("}\n");
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// Determine using directives (put System namespaces first)
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nsRefs.Clear();
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foreach (var type in usedTypes) {
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var refs = type.GetAllTypeReferences();
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var ns = refs.Where(r => !string.IsNullOrEmpty(r.Namespace) && r.Namespace != type.Namespace).Select(r => r.Namespace);
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nsRefs.UnionWith(ns);
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}
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nsRefs.UnionWith(assemblies.SelectMany(a => a.CustomAttributes).Select(a => a.AttributeType.Namespace));
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var usings = nsRefs.OrderBy(n => (n.StartsWith("System.") || n == "System") ? "0" + n : "1" + n);
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// Ensure output directory exists
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if (!string.IsNullOrEmpty(Path.GetDirectoryName(outFile)))
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Directory.CreateDirectory(Path.GetDirectoryName(outFile));
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// Sanitize leafname (might be class name with invalid characters)
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var leafname = Regex.Replace(Path.GetFileName(outFile), @"[<>:""\|\?\*]", "_");
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outFile = Path.Combine(Path.GetDirectoryName(outFile), leafname);
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// Create output file
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bool fileWritten = false;
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do {
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try {
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using StreamWriter writer = new StreamWriter(new FileStream(outFile, FileMode.Create), Encoding.UTF8);
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// Write preamble
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writer.Write(@"/*
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* Generated code file by Il2CppInspector - http://www.djkaty.com - https://github.com/djkaty
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*/
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");
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// Output using directives
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writer.Write(string.Concat(usings.Select(n => $"using {n};\n")));
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if (nsRefs.Any())
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writer.Write("\n");
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// Output assembly information and attributes
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writer.Write(generateAssemblyInfo(assemblies, nsRefs, outputAssemblyAttributes) + "\n\n");
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// Output type definitions
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writer.Write(code);
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fileWritten = true;
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}
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catch (IOException ex) {
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// If we get "file is in use by another process", we are probably writing a duplicate class in another thread
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// Wait a bit and try again
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if ((uint) ex.HResult != 0x80070020)
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throw;
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System.Threading.Thread.Sleep(100);
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}
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} while (!fileWritten);
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return true;
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}
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private string generateAssemblyInfo(IEnumerable<Reflection.Assembly> assemblies, IEnumerable<string> namespaces = null, bool outputAssemblyAttributes = true) {
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var text = new StringBuilder();
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foreach (var asm in assemblies) {
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text.Append($"// Image {asm.Index}: {asm.ShortName} - Assembly: {asm.FullName} - Types {asm.ImageDefinition.typeStart}-{asm.ImageDefinition.typeStart + asm.ImageDefinition.typeCount - 1}\n");
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// Assembly-level attributes
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if (outputAssemblyAttributes)
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lock (usedAssemblyAttributesLock) {
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text.Append(asm.CustomAttributes.Where(a => a.AttributeType.FullName != ExtAttribute)
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.Except(usedAssemblyAttributes ?? new HashSet<CustomAttributeData>())
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.OrderBy(a => a.AttributeType.Name)
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.ToString(new Scope { Current = null, Namespaces = namespaces ?? new List<string>() }, attributePrefix: "assembly: ", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
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if (asm.CustomAttributes.Any())
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text.Append("\n");
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usedAssemblyAttributes.UnionWith(asm.CustomAttributes);
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}
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}
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return text.ToString().TrimEnd();
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}
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private string generateType(TypeInfo type, IEnumerable<string> namespaces, string prefix = "") {
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// Don't output compiler-generated types if desired
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if (MustCompile && type.GetCustomAttributes(CGAttribute).Any())
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return string.Empty;
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var codeBlocks = new Dictionary<string, string>();
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var usedMethods = new List<MethodInfo>();
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var sb = new StringBuilder();
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var scope = new Scope {
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Current = type,
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Namespaces = namespaces
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};
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// Fields
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sb.Clear();
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if (!type.IsEnum) {
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foreach (var field in type.DeclaredFields) {
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if (MustCompile && field.GetCustomAttributes(CGAttribute).Any())
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continue;
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if (field.IsNotSerialized)
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sb.Append(prefix + "\t[NonSerialized]\n");
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// Attributes
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sb.Append(field.CustomAttributes.Where(a => a.AttributeType.FullName != FBAttribute).OrderBy(a => a.AttributeType.Name)
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.ToString(scope, prefix + "\t", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
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sb.Append(prefix + "\t");
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sb.Append(field.GetModifierString());
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// Fixed buffers
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if (field.GetCustomAttributes(FBAttribute).Any()) {
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if (!SuppressMetadata)
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sb.Append($"/* {field.GetCustomAttributes(FBAttribute)[0].VirtualAddress.ToAddressString()} */ ");
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sb.Append($"{field.FieldType.DeclaredFields[0].FieldType.GetScopedCSharpName(scope)} {field.CSharpSafeName}[0]"); // FixedElementField
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}
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// Regular fields
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else
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sb.Append($"{field.FieldType.GetScopedCSharpName(scope)} {field.CSharpSafeName}");
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if (field.HasDefaultValue)
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sb.Append($" = {field.DefaultValueString}");
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sb.Append(";");
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// Don't output field indices for const fields (they don't have any storage)
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// or open generic types (they aren't known until runtime)
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if (!field.IsLiteral && !SuppressMetadata && !type.ContainsGenericParameters)
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sb.Append($" // 0x{(uint) field.Offset:X2}");
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// Output metadata file offset for const fields
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if (field.IsLiteral && !SuppressMetadata)
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sb.Append($" // Metadata: 0x{(uint) field.DefaultValueMetadataAddress:X8}");
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sb.Append("\n");
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}
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codeBlocks.Add("Fields", sb.ToString());
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}
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// Properties
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sb.Clear();
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foreach (var prop in type.DeclaredProperties) {
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// Attributes
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sb.Append(prop.CustomAttributes.OrderBy(a => a.AttributeType.Name)
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.ToString(scope, prefix + "\t", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
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// The access mask enum values go from 1 (private) to 6 (public) in order from most to least restrictive
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var getAccess = (prop.GetMethod?.Attributes ?? 0) & MethodAttributes.MemberAccessMask;
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var setAccess = (prop.SetMethod?.Attributes ?? 0) & MethodAttributes.MemberAccessMask;
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// In case the access level of both is the same and the selected method is null, pick the other one (rare edge case)
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var primary = (getAccess >= setAccess ? prop.GetMethod : prop.SetMethod) ?? prop.GetMethod ?? prop.SetMethod;
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sb.Append($"{prefix}\t{primary.GetModifierString()}{prop.PropertyType.GetScopedCSharpName(scope)} ");
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// Non-indexer; non-auto-properties should have a body
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var needsBody = MustCompile && !type.IsInterface && !type.IsAbstract && !prop.IsAutoProperty;
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var getBody = needsBody? " => default;" : ";";
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var setBody = needsBody? " {}" : ";";
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if ((!prop.CanRead || !prop.GetMethod.DeclaredParameters.Any()) && (!prop.CanWrite || prop.SetMethod.DeclaredParameters.Count == 1))
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sb.Append($"{prop.CSharpName} {{ ");
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// Indexer
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else {
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// Replace "Item" with "this" - preserves explicit interface implementations
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sb.Append(prop.CSharpName[..^4] + "this");
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sb.Append("[" + string.Join(", ", primary.DeclaredParameters.SkipLast(getAccess >= setAccess ? 0 : 1)
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.Select(p => p.GetParameterString(scope, !SuppressMetadata, MustCompile))) + "] { ");
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getBody = " => default;";
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setBody = " {}";
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}
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sb.Append((prop.CanRead? prop.GetMethod.CustomAttributes.Where(a => !MustCompile || a.AttributeType.FullName != CGAttribute)
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.ToString(scope, inline: true, emitPointer: !SuppressMetadata, mustCompile: MustCompile)
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+ (getAccess < setAccess? prop.GetMethod.GetAccessModifierString() : "") + $"get{getBody} " : "")
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// Auto-properties must have get accessors (exclude indexers)
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+ (MustCompile && !prop.CanRead && setBody == ";"? "get; " : "")
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+ (prop.CanWrite? prop.SetMethod.CustomAttributes.Where(a => !MustCompile || a.AttributeType.FullName != CGAttribute)
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.ToString(scope, inline: true, emitPointer: !SuppressMetadata, mustCompile: MustCompile)
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+ (setAccess < getAccess? prop.SetMethod.GetAccessModifierString() : "") + $"set{setBody} " : "") + "}");
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if (!SuppressMetadata) {
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if ((prop.CanRead && prop.GetMethod.VirtualAddress != null) || (prop.CanWrite && prop.SetMethod.VirtualAddress != null))
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sb.Append(" // ");
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sb.Append((prop.CanRead && prop.GetMethod.VirtualAddress != null ? prop.GetMethod.VirtualAddress.ToAddressString() + " " : "")
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+ (prop.CanWrite && prop.SetMethod.VirtualAddress != null ? prop.SetMethod.VirtualAddress.ToAddressString() : ""));
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}
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sb.Append("\n");
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usedMethods.Add(prop.GetMethod);
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usedMethods.Add(prop.SetMethod);
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}
|
|
codeBlocks.Add("Properties", sb.ToString());
|
|
|
|
// Events
|
|
sb.Clear();
|
|
foreach (var evt in type.DeclaredEvents) {
|
|
// Attributes
|
|
sb.Append(evt.CustomAttributes.OrderBy(a => a.AttributeType.Name)
|
|
.ToString(scope, prefix + "\t", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
|
|
|
|
string modifiers = evt.AddMethod?.GetModifierString();
|
|
sb.Append($"{prefix}\t{modifiers}event {evt.EventHandlerType.GetScopedCSharpName(scope)} {evt.CSharpSafeName}");
|
|
|
|
if (!MustCompile) {
|
|
sb.Append(" {\n");
|
|
var m = new Dictionary<string, (ulong, ulong)?>();
|
|
if (evt.AddMethod != null) m.Add("add", evt.AddMethod.VirtualAddress);
|
|
if (evt.RemoveMethod != null) m.Add("remove", evt.RemoveMethod.VirtualAddress);
|
|
if (evt.RaiseMethod != null) m.Add("raise", evt.RaiseMethod.VirtualAddress);
|
|
sb.Append(string.Join("\n", m.Select(x => $"{prefix}\t\t{x.Key};{(SuppressMetadata? "" : " // " + x.Value.ToAddressString())}")) + "\n" + prefix + "\t}\n");
|
|
} else
|
|
sb.Append(";\n");
|
|
|
|
usedMethods.Add(evt.AddMethod);
|
|
usedMethods.Add(evt.RemoveMethod);
|
|
usedMethods.Add(evt.RaiseMethod);
|
|
}
|
|
codeBlocks.Add("Events", sb.ToString());
|
|
|
|
// Nested types
|
|
codeBlocks.Add("Nested types", string.Join("\n", type.DeclaredNestedTypes
|
|
.Select(n => generateType(n, namespaces, prefix + "\t")).Where(c => !string.IsNullOrEmpty(c))));
|
|
|
|
// Constructors
|
|
var fields = type.DeclaredFields.Where(f => !f.GetCustomAttributes(CGAttribute).Any());
|
|
|
|
sb.Clear();
|
|
|
|
// Crete a parameterless constructor for every relevant type when making code that compiles to mitigate CS1729 and CS7036
|
|
if (MustCompile && !type.IsInterface && !(type.IsAbstract && type.IsSealed) && !type.IsValueType
|
|
&& type.DeclaredConstructors.All(c => c.IsStatic || c.DeclaredParameters.Any()))
|
|
sb.Append($"{prefix}\t{(type.IsAbstract? "protected" : "public")} {type.UnmangledBaseName}() {{}} // Dummy constructor\n");
|
|
|
|
foreach (var method in type.DeclaredConstructors) {
|
|
// Attributes
|
|
sb.Append(method.CustomAttributes.OrderBy(a => a.AttributeType.Name)
|
|
.ToString(scope, prefix + "\t", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
|
|
|
|
sb.Append($"{prefix}\t{method.GetModifierString()}{method.DeclaringType.UnmangledBaseName}{method.GetTypeParametersString(scope)}");
|
|
sb.Append($"({method.GetParametersString(scope, !SuppressMetadata)})");
|
|
|
|
if (MustCompile) {
|
|
// Class constructor
|
|
if (method.IsAbstract)
|
|
sb.Append(";");
|
|
else if (!type.IsValueType)
|
|
sb.Append(" {}");
|
|
|
|
// Struct constructor
|
|
else {
|
|
// Parameterized struct constructors must call the parameterless constructor to create the object
|
|
// if the object has any auto-implemented properties
|
|
if (type.DeclaredProperties.Any() && method.DeclaredParameters.Any())
|
|
sb.Append(" : this()");
|
|
|
|
// Struct construvctors must initialize all fields in the struct
|
|
if (fields.Any()) {
|
|
var paramNames = method.DeclaredParameters.Select(p => p.Name);
|
|
sb.Append(" {\n" + string.Join("\n", fields
|
|
.Where(f => !f.IsLiteral && f.IsStatic == method.IsStatic)
|
|
.Select(f => $"{prefix}\t\t{(paramNames.Contains(f.Name) ? "this." : "")}{f.Name} = default;"))
|
|
+ $"\n{prefix}\t}}");
|
|
} else
|
|
sb.Append(" {}");
|
|
}
|
|
} else
|
|
sb.Append(";");
|
|
|
|
sb.Append((!SuppressMetadata && method.VirtualAddress != null ? $" // {method.VirtualAddress.ToAddressString()}" : "") + "\n");
|
|
}
|
|
codeBlocks.Add("Constructors", sb.ToString());
|
|
|
|
// Methods
|
|
// Don't re-output methods for constructors, properties, events etc.
|
|
var methods = type.DeclaredMethods.Except(usedMethods).Where(m => m.CustomAttributes.All(a => a.AttributeType.FullName != ExtAttribute));
|
|
codeBlocks.Add("Methods", string.Concat(methods.Select(m => generateMethod(m, scope, prefix))));
|
|
usedMethods.AddRange(methods);
|
|
|
|
// Extension methods
|
|
codeBlocks.Add("Extension methods", string.Concat(type.DeclaredMethods.Except(usedMethods).Select(m => generateMethod(m, scope, prefix))));
|
|
|
|
// Type declaration
|
|
sb.Clear();
|
|
|
|
if (type.IsImport)
|
|
sb.Append(prefix + "[ComImport]\n");
|
|
if (type.IsSerializable)
|
|
sb.Append(prefix + "[Serializable]\n");
|
|
|
|
// TODO: DefaultMemberAttribute should be output if it is present and the type does not have an indexer, otherwise suppressed
|
|
// See https://docs.microsoft.com/en-us/dotnet/api/system.reflection.defaultmemberattribute?view=netframework-4.8
|
|
sb.Append(type.CustomAttributes.Where(a => a.AttributeType.FullName != DMAttribute && a.AttributeType.FullName != ExtAttribute)
|
|
.OrderBy(a => a.AttributeType.Name).ToString(scope, prefix, emitPointer: !SuppressMetadata, mustCompile: MustCompile));
|
|
|
|
// Roll-up multicast delegates to use the 'delegate' syntactic sugar
|
|
if (type.IsClass && type.IsSealed && type.BaseType?.FullName == "System.MulticastDelegate") {
|
|
sb.Append(prefix + type.GetAccessModifierString());
|
|
|
|
var del = type.GetMethod("Invoke");
|
|
// IL2CPP doesn't seem to retain return type attributes
|
|
//sb.Append(del.ReturnType.CustomAttributes.ToString(prefix, "return: ", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
|
|
if (del.RequiresUnsafeContext)
|
|
sb.Append("unsafe ");
|
|
sb.Append($"delegate {del.ReturnType.GetScopedCSharpName(scope)} {type.GetCSharpTypeDeclarationName()}(");
|
|
sb.Append(del.GetParametersString(scope, !SuppressMetadata) + ");");
|
|
if (!SuppressMetadata)
|
|
sb.Append($" // TypeDefIndex: {type.Index}; {del.VirtualAddress.ToAddressString()}");
|
|
sb.Append("\n");
|
|
return sb.ToString();
|
|
}
|
|
|
|
sb.Append(prefix + type.GetModifierString());
|
|
|
|
var @base = type.ImplementedInterfaces.Select(x => x.GetScopedCSharpName(scope, isPartOfTypeDeclaration: true)).ToList();
|
|
if (type.BaseType != null && type.BaseType.FullName != "System.Object" && type.BaseType.FullName != "System.ValueType" && !type.IsEnum)
|
|
@base.Insert(0, type.BaseType.GetScopedCSharpName(scope, isPartOfTypeDeclaration: true));
|
|
if (type.IsEnum && type.GetEnumUnderlyingType().FullName != "System.Int32") // enums derive from int by default
|
|
@base.Insert(0, type.GetEnumUnderlyingType().GetScopedCSharpName(scope));
|
|
var baseText = @base.Count > 0 ? " : " + string.Join(", ", @base) : string.Empty;
|
|
|
|
sb.Append($"{type.GetCSharpTypeDeclarationName()}{baseText}");
|
|
if (!SuppressMetadata)
|
|
sb.Append($" // TypeDefIndex: {type.Index}");
|
|
sb.Append("\n");
|
|
|
|
foreach (var gp in type.GetGenericArguments()) {
|
|
var constraint = gp.GetTypeConstraintsString(scope);
|
|
if (constraint != string.Empty)
|
|
sb.Append($"{prefix}\t{constraint}\n");
|
|
}
|
|
|
|
sb.Append(prefix + "{\n");
|
|
|
|
// Enumeration
|
|
if (type.IsEnum) {
|
|
sb.Append(string.Join(",\n", type.GetEnumNames().Zip(type.GetEnumValues().OfType<object>(),
|
|
(k, v) => new { k, v }).OrderBy(x => x.v).Select(x => $"{prefix}\t{x.k} = {x.v}")) + "\n");
|
|
}
|
|
|
|
// Type definition
|
|
else
|
|
sb.Append(string.Join("\n", codeBlocks.Where(b => b.Value != string.Empty).Select(b => prefix + "\t// " + b.Key + "\n" + b.Value)));
|
|
|
|
sb.Append(prefix + "}\n");
|
|
return sb.ToString();
|
|
}
|
|
|
|
private string generateMethod(MethodInfo method, Scope scope, string prefix) {
|
|
if (MustCompile && method.GetCustomAttributes(CGAttribute).Any())
|
|
return string.Empty;
|
|
|
|
var writer = new StringBuilder();
|
|
|
|
// Attributes
|
|
writer.Append(method.CustomAttributes.Where(a => a.AttributeType.FullName != ExtAttribute).OrderBy(a => a.AttributeType.Name)
|
|
.ToString(scope, prefix + "\t", emitPointer: !SuppressMetadata, mustCompile: MustCompile));
|
|
|
|
// IL2CPP doesn't seem to retain return type attributes
|
|
//writer.Append(method.ReturnType.CustomAttributes.ToString(prefix + "\t", "return: ", emitPointer: !SuppressMetadata));
|
|
writer.Append($"{prefix}\t{method.GetModifierString()}");
|
|
|
|
// Finalizers become destructors
|
|
if (method.Name == "Finalize" && method.IsVirtual && method.ReturnType.FullName == "System.Void" && method.IsFamily)
|
|
writer.Append("~" + method.DeclaringType.UnmangledBaseName);
|
|
|
|
// Regular method or operator overload
|
|
else if (method.Name != "op_Implicit" && method.Name != "op_Explicit")
|
|
writer.Append($"{method.ReturnParameter.GetReturnParameterString(scope)} {method.CSharpName}{method.GetTypeParametersString(scope)}");
|
|
|
|
// User-defined conversion operator
|
|
else
|
|
writer.Append($"{method.CSharpName}{method.ReturnType.GetScopedCSharpName(scope)}");
|
|
|
|
// Parameters
|
|
writer.Append("(" + method.GetParametersString(scope, !SuppressMetadata) + ")");
|
|
|
|
// Generic type constraints
|
|
foreach (var gp in method.GetGenericArguments()) {
|
|
var constraint = gp.GetTypeConstraintsString(scope);
|
|
if (constraint != string.Empty)
|
|
writer.Append($"\n{prefix}\t\t{constraint}");
|
|
}
|
|
|
|
// Body
|
|
var methodBody = MustCompile? method switch {
|
|
// Abstract method
|
|
{ IsAbstract: true } => ";",
|
|
|
|
// Extern method
|
|
{ Attributes: var a } when (a & MethodAttributes.PinvokeImpl) == MethodAttributes.PinvokeImpl => ";",
|
|
|
|
// Method with out parameters
|
|
{ DeclaredParameters: var d } when d.Any(p => p.IsOut) =>
|
|
" {\n" + string.Join("\n", d.Where(p => p.IsOut).Select(p => $"{prefix}\t\t{p.Name} = default;"))
|
|
+ (method.ReturnType.FullName != "System.Void"? $"\n{prefix}\t\treturn default;" : "")
|
|
+ $"\n{prefix}\t}}",
|
|
|
|
// No return type
|
|
{ ReturnType: var retType } when retType.FullName == "System.Void" => " {}",
|
|
|
|
// Ref return type
|
|
{ ReturnType: var retType } when retType.IsByRef => " => ref _refReturnTypeFor" + method.CSharpName + ";",
|
|
|
|
// Regular return type
|
|
_ => " => default;"
|
|
}
|
|
|
|
// Only make a method body if we are trying to compile the output
|
|
: ";";
|
|
|
|
writer.Append(methodBody + (!SuppressMetadata && method.VirtualAddress != null ? $" // {method.VirtualAddress.ToAddressString()}" : "") + "\n");
|
|
|
|
// Ref return type requires us to invent a field
|
|
if (MustCompile && method.ReturnType.IsByRef)
|
|
writer.Append($"{prefix}\tprivate {method.ReturnType.GetScopedCSharpName(scope)} _refReturnTypeFor{method.CSharpName}; // Dummy field\n");
|
|
|
|
return writer.ToString();
|
|
}
|
|
}
|
|
}
|