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# Conflicts: # src/Neo.Compiler.CSharp/CompilationContext.cs # src/Neo.SmartContract.Template/templates/neocontract/Contract1.cs
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Submodule neo
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| // Copyright (C) 2015-2024 The Neo Project. | ||
| // | ||
| // The Neo.Compiler.CSharp is free software distributed under the MIT | ||
| // software license, see the accompanying file LICENSE in the main directory | ||
| // of the project or http://www.opensource.org/licenses/mit-license.php | ||
| // for more details. | ||
| // | ||
| // Redistribution and use in source and binary forms with or without | ||
| // modifications are permitted. | ||
|
|
||
| extern alias scfx; | ||
|
|
||
| using Microsoft.CodeAnalysis; | ||
| using Microsoft.CodeAnalysis.CSharp; | ||
| using Microsoft.CodeAnalysis.CSharp.Syntax; | ||
| using Neo.Json; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel; | ||
| using System.Diagnostics; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Xml.Linq; | ||
| using Akka.Util.Internal; | ||
| using BigInteger = System.Numerics.BigInteger; | ||
|
|
||
| namespace Neo.Compiler | ||
| { | ||
| public class CompilationEngine | ||
| { | ||
| internal Compilation? Compilation; | ||
| internal Options Options { get; private set; } | ||
| private static readonly MetadataReference[] CommonReferences; | ||
| private static readonly Dictionary<string, MetadataReference> MetaReferences = new(); | ||
| internal readonly Dictionary<INamedTypeSymbol, CompilationContext> Contexts = new(SymbolEqualityComparer.Default); | ||
|
|
||
| static CompilationEngine() | ||
| { | ||
| string coreDir = Path.GetDirectoryName(typeof(object).Assembly.Location)!; | ||
| CommonReferences = new MetadataReference[] | ||
| { | ||
| MetadataReference.CreateFromFile(Path.Combine(coreDir, "System.Runtime.dll")), | ||
| MetadataReference.CreateFromFile(Path.Combine(coreDir, "System.Runtime.InteropServices.dll")), | ||
| MetadataReference.CreateFromFile(typeof(string).Assembly.Location), | ||
| MetadataReference.CreateFromFile(typeof(DisplayNameAttribute).Assembly.Location), | ||
| MetadataReference.CreateFromFile(typeof(BigInteger).Assembly.Location) | ||
| }; | ||
| } | ||
|
|
||
| public CompilationEngine(Options options) | ||
| { | ||
| Options = options; | ||
| } | ||
|
|
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| public List<CompilationContext> Compile(IEnumerable<string> sourceFiles, IEnumerable<MetadataReference> references) | ||
| { | ||
| IEnumerable<SyntaxTree> syntaxTrees = sourceFiles.OrderBy(p => p).Select(p => CSharpSyntaxTree.ParseText(File.ReadAllText(p), options: Options.GetParseOptions(), path: p)); | ||
| CSharpCompilationOptions compilationOptions = new(OutputKind.DynamicallyLinkedLibrary, deterministic: true, nullableContextOptions: Options.Nullable); | ||
| Compilation = CSharpCompilation.Create(null, syntaxTrees, references, compilationOptions); | ||
| return CompileProjectContracts(Compilation); | ||
| } | ||
|
|
||
| public List<CompilationContext> CompileSources(string[] sourceFiles) | ||
| { | ||
| List<MetadataReference> references = new(CommonReferences) | ||
| { | ||
| MetadataReference.CreateFromFile(typeof(scfx.Neo.SmartContract.Framework.SmartContract).Assembly.Location) | ||
| }; | ||
| return Compile(sourceFiles, references); | ||
| } | ||
|
|
||
| public List<CompilationContext> CompileProject(string csproj) | ||
| { | ||
| Compilation = GetCompilation(csproj); | ||
| return CompileProjectContracts(Compilation); | ||
| } | ||
|
|
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| private List<CompilationContext> CompileProjectContracts(Compilation compilation) | ||
| { | ||
| var classDependencies = new Dictionary<INamedTypeSymbol, List<INamedTypeSymbol>>(SymbolEqualityComparer.Default); | ||
| var allSmartContracts = new HashSet<INamedTypeSymbol>(SymbolEqualityComparer.Default); | ||
|
|
||
| foreach (var tree in compilation.SyntaxTrees) | ||
| { | ||
| var semanticModel = compilation.GetSemanticModel(tree); | ||
| var classNodes = tree.GetRoot().DescendantNodes().OfType<ClassDeclarationSyntax>(); | ||
|
|
||
| foreach (var classNode in classNodes) | ||
| { | ||
| var classSymbol = semanticModel.GetDeclaredSymbol(classNode); | ||
| if (classSymbol != null && IsDerivedFromSmartContract(classSymbol, "Neo.SmartContract.Framework.SmartContract", semanticModel)) | ||
| { | ||
| allSmartContracts.Add(classSymbol); | ||
| classDependencies[classSymbol] = new List<INamedTypeSymbol>(); | ||
| foreach (var member in classSymbol.GetMembers()) | ||
| { | ||
| var memberTypeSymbol = (member as IFieldSymbol)?.Type ?? (member as IPropertySymbol)?.Type; | ||
| if (memberTypeSymbol is INamedTypeSymbol namedTypeSymbol && allSmartContracts.Contains(namedTypeSymbol)) | ||
| { | ||
| classDependencies[classSymbol].Add(namedTypeSymbol); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| // Verify if there is any valid smart contract class | ||
| if (classDependencies.Count == 0) throw new FormatException("No valid neo SmartContract found. Please make sure your contract is subclass of SmartContract and is not abstract."); | ||
| // Check contract dependencies, make sure there is no cycle in the dependency graph | ||
| var sortedClasses = TopologicalSort(classDependencies); | ||
| foreach (var classSymbol in sortedClasses) | ||
| { | ||
| new CompilationContext(this, classSymbol).Compile(); | ||
| } | ||
|
|
||
| return Contexts.Select(p => p.Value).ToList(); | ||
| } | ||
|
|
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| private static List<INamedTypeSymbol> TopologicalSort(Dictionary<INamedTypeSymbol, List<INamedTypeSymbol>> dependencies) | ||
| { | ||
| var sorted = new List<INamedTypeSymbol>(); | ||
| var visited = new HashSet<INamedTypeSymbol>(SymbolEqualityComparer.Default); | ||
| var visiting = new HashSet<INamedTypeSymbol>(SymbolEqualityComparer.Default); // 添加中间状态以检测循环依赖 | ||
|
|
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| void Visit(INamedTypeSymbol classSymbol) | ||
| { | ||
| if (visited.Contains(classSymbol)) | ||
| { | ||
| return; | ||
| } | ||
| if (!visiting.Add(classSymbol)) | ||
| { | ||
| throw new InvalidOperationException("Cyclic dependency detected"); | ||
| } | ||
|
|
||
| if (dependencies.TryGetValue(classSymbol, out var dependency)) | ||
| { | ||
| foreach (var dep in dependency) | ||
| { | ||
| Visit(dep); | ||
| } | ||
| } | ||
|
|
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| visiting.Remove(classSymbol); | ||
| visited.Add(classSymbol); | ||
| sorted.Add(classSymbol); | ||
| } | ||
|
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| foreach (var classSymbol in dependencies.Keys) | ||
| { | ||
| Visit(classSymbol); | ||
| } | ||
|
|
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| return sorted; | ||
| } | ||
|
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| static bool IsDerivedFromSmartContract(INamedTypeSymbol classSymbol, string smartContractFullyQualifiedName, SemanticModel semanticModel) | ||
| { | ||
| var baseType = classSymbol.BaseType; | ||
| while (baseType != null) | ||
| { | ||
| if (baseType.ToDisplayString() == smartContractFullyQualifiedName) | ||
| { | ||
| return true; | ||
| } | ||
| baseType = baseType.BaseType; | ||
| } | ||
| return false; | ||
| } | ||
|
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||
| public Compilation GetCompilation(string csproj) | ||
| { | ||
| string folder = Path.GetDirectoryName(csproj)!; | ||
| string obj = Path.Combine(folder, "obj"); | ||
| HashSet<string> sourceFiles = Directory.EnumerateFiles(folder, "*.cs", SearchOption.AllDirectories) | ||
| .Where(p => !p.StartsWith(obj)) | ||
| .GroupBy(Path.GetFileName) | ||
| .Select(g => g.First()) | ||
| .ToHashSet(StringComparer.OrdinalIgnoreCase); | ||
| List<MetadataReference> references = new(CommonReferences); | ||
| CSharpCompilationOptions compilationOptions = new(OutputKind.DynamicallyLinkedLibrary, deterministic: true, nullableContextOptions: Options.Nullable); | ||
| XDocument document = XDocument.Load(csproj); | ||
| sourceFiles.UnionWith(document.Root!.Elements("ItemGroup").Elements("Compile").Attributes("Include").Select(p => Path.GetFullPath(p.Value, folder))); | ||
| Process.Start(new ProcessStartInfo | ||
| { | ||
| FileName = "dotnet", | ||
| Arguments = $"restore \"{csproj}\"", | ||
| WorkingDirectory = folder | ||
| })!.WaitForExit(); | ||
| string assetsPath = Path.Combine(folder, "obj", "project.assets.json"); | ||
| JObject assets = (JObject)JToken.Parse(File.ReadAllBytes(assetsPath))!; | ||
| foreach (var (name, package) in ((JObject)assets["targets"]![0]!).Properties) | ||
| { | ||
| MetadataReference? reference = GetReference(name, (JObject)package!, assets, folder, Options, compilationOptions); | ||
| if (reference is not null) references.Add(reference); | ||
| } | ||
| IEnumerable<SyntaxTree> syntaxTrees = sourceFiles.OrderBy(p => p).Select(p => CSharpSyntaxTree.ParseText(File.ReadAllText(p), options: Options.GetParseOptions(), path: p)); | ||
| return CSharpCompilation.Create(assets["project"]!["restore"]!["projectName"]!.GetString(), syntaxTrees, references, compilationOptions); | ||
| } | ||
|
|
||
| private MetadataReference? GetReference(string name, JObject package, JObject assets, string folder, Options options, CSharpCompilationOptions compilationOptions) | ||
| { | ||
| string assemblyName = Path.GetDirectoryName(name)!; | ||
| if (!MetaReferences.TryGetValue(assemblyName, out var reference)) | ||
| { | ||
| switch (assets["libraries"]![name]!["type"]!.GetString()) | ||
| { | ||
| case "package": | ||
| string packagesPath = assets["project"]!["restore"]!["packagesPath"]!.GetString(); | ||
| string namePath = assets["libraries"]![name]!["path"]!.GetString(); | ||
| string[] files = ((JArray)assets["libraries"]![name]!["files"]!) | ||
| .Select(p => p!.GetString()) | ||
| .Where(p => p.StartsWith("src/")) | ||
| .ToArray(); | ||
| if (files.Length == 0) | ||
| { | ||
| JObject? dllFiles = (JObject?)(package["compile"] ?? package["runtime"]); | ||
| if (dllFiles is null) return null; | ||
| foreach (var (file, _) in dllFiles.Properties) | ||
| { | ||
| if (file.EndsWith("_._")) continue; | ||
| string path = Path.Combine(packagesPath, namePath, file); | ||
| if (!File.Exists(path)) continue; | ||
| reference = MetadataReference.CreateFromFile(path); | ||
| break; | ||
| } | ||
| if (reference is null) return null; | ||
| } | ||
| else | ||
| { | ||
| IEnumerable<SyntaxTree> st = files.OrderBy(p => p).Select(p => Path.Combine(packagesPath, namePath, p)).Select(p => CSharpSyntaxTree.ParseText(File.ReadAllText(p), path: p)); | ||
| CSharpCompilation cr = CSharpCompilation.Create(assemblyName, st, CommonReferences, compilationOptions); | ||
| reference = cr.ToMetadataReference(); | ||
| } | ||
| break; | ||
| case "project": | ||
| string msbuildProject = assets["libraries"]![name]!["msbuildProject"]!.GetString(); | ||
| msbuildProject = Path.GetFullPath(msbuildProject, folder); | ||
| reference = GetCompilation(msbuildProject).ToMetadataReference(); | ||
| break; | ||
| default: | ||
| throw new NotSupportedException(); | ||
| } | ||
| MetaReferences.Add(assemblyName, reference); | ||
| } | ||
| return reference; | ||
| } | ||
| } | ||
| } |
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