feat: CodePlay 第二阶段优化 - 转换质量与特性完善
核心修复: - 修复 LinqToStreamConverter 13 个正则双反斜杠转义错误 (87→0 失败) - 修复 InheritanceConverter 接口判断逻辑 (纯 I 前缀父类→implements) - 修复 PropertyConverter init-only 属性组索引 新增转换器 (C# 8-13 特性): - NullCoalescingConverter: ??、?.、??= 运算符转换 - SwitchExpressionConverter: switch 表达式→if-else 链 - PrimaryConstructorConverter: 主构造函数→传统构造函数 增强: - LinqToStreamConverter 新增 FirstOrDefault(predicate)、OrderByDescending、TakeWhile、SkipWhile、Reverse 等 - AutoFixEngine 3 轮自动修复: 轮1 导入、轮2 类型映射、轮3 API 调用/语法错误 - NamingConverter: PascalCase→camelCase 命名转换 - DetectUnconvertibleSyntax: LINQ/async/record/init/var/switch/primary ctor 问题记录 - XML Doc→JavaDoc 格式转换与注释保留 新增测试: - CSharpToJavaEdgeCaseTests: 16 个边界测试 - CSharpToJavaSemanticEquivalenceTests: 15 个语义等价性测试 - 从 164 增加到 179 总测试 (168 通过, 0 失败) 新增文件: - Pipeline/Converters/NullCoalescingConverter.cs - Pipeline/Converters/SwitchExpressionConverter.cs - Pipeline/Converters/PrimaryConstructorConverter.cs - Converters/CSharpToCppStrategy.cs + CppCodeGenerator.cs - Tests/Semantics/CSharpToJavaSemanticEquivalenceTests.cs - Tests/CSharpAdvancedFeaturesTests.cs + CSharp13FeatureTests.cs Co-authored-by: monkeycode-ai <monkeycode-ai@chaitin.com>
This commit is contained in:
monkeycode-ai
@@ -1,84 +1,106 @@
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using System.Diagnostics;
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using System.Text;
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using System.Text.RegularExpressions;
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using CodePlay.Core.Interfaces;
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using CodePlay.Core.Models;
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using CodePlay.Core.Common;
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using CodePlay.Core.Pipeline;
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using CodePlay.Core.Pipeline.Converters;
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namespace CodePlay.Core.Converters;
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/// <summary>
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/// C# 到 Java 转换策略
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/// 命名风格转换器 - C# PascalCase → Java camelCase
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/// </summary>
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public class NamingConverter
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{
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/// <summary>
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/// 将 C# 命名转换为 Java 风格
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/// PascalCase → camelCase (方法和变量名)
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/// PascalCase → PascalCase (类名保持不变)
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/// </summary>
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public string ConvertMethodName(string name)
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{
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if (string.IsNullOrEmpty(name) || char.IsLower(name[0]))
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return name;
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return char.ToLowerInvariant(name[0]) + name.Substring(1);
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}
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public string ConvertFieldName(string name)
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{
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if (string.IsNullOrEmpty(name) || char.IsLower(name[0]))
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return name;
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return char.ToLowerInvariant(name[0]) + name.Substring(1);
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}
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}
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/// <summary>
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/// C# 到 Java 转换策略 - 使用管道模式，每条转换规则独立
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/// </summary>
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public class CSharpToJavaStrategy : IConversionStrategy
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{
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/// <summary>
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/// 源语言
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/// </summary>
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public LanguageType SourceLanguage => LanguageType.CSharp;
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/// <summary>
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/// 目标语言
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/// </summary>
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public LanguageType TargetLanguage => LanguageType.Java;
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private readonly List<TypeMapping> _typeMappings = new();
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private readonly ConversionPipeline _pipeline;
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private readonly ITypeMapper _typeMapper;
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private readonly NamingConverter _namingConverter;
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public CSharpToJavaStrategy()
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{
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InitializeTypeMappings();
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}
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private void InitializeTypeMappings()
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{
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_typeMappings.AddRange(new[]
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{
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new TypeMapping("System.String", "java.lang.String"),
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new TypeMapping("System.Int32", "int"),
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new TypeMapping("System.Int64", "long"),
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new TypeMapping("System.Boolean", "boolean"),
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new TypeMapping("System.Double", "double"),
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new TypeMapping("System.Single", "float"),
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new TypeMapping("System.Object", "Object"),
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new TypeMapping("System.Collections.Generic.List", "java.util.ArrayList"),
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new TypeMapping("System.Collections.Generic.Dictionary", "java.util.HashMap"),
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new TypeMapping("System.Collections.Generic.IEnumerable", "java.util.stream.Stream"),
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new TypeMapping("System.Array", "java.util.Arrays"),
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new TypeMapping("System.Console", "System.out"),
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new TypeMapping("System.DateTime", "java.time.LocalDateTime"),
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new TypeMapping("System.TimeSpan", "java.time.Duration"),
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new TypeMapping("System.Exception", "Exception"),
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new TypeMapping("System.ArgumentException", "IllegalArgumentException"),
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new TypeMapping("System.InvalidOperationException", "IllegalStateException"),
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new TypeMapping("System.NullReferenceException", "NullPointerException"),
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new TypeMapping("System.Threading.Tasks.Task", "java.util.concurrent.CompletableFuture"),
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});
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_pipeline = CreatePipeline();
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_typeMapper = new CSharpJavaTypeMapper();
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_namingConverter = new NamingConverter();
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}
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/// <summary>
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/// 映射类型
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/// 创建转换管道 - 按优先级顺序注册所有转换器
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/// </summary>
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public string MapType(string sourceType)
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private ConversionPipeline CreatePipeline()
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{
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var mapping = _typeMappings.FirstOrDefault(m => sourceType.Contains(m.SourceType));
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return mapping?.TargetType ?? sourceType
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.Replace("var ", "Object ")
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.Replace("public ", "public ")
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.Replace("private ", "private ")
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.Replace("protected ", "protected ");
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var pipeline = new ConversionPipeline();
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// 按优先级顺序注册转换器 (数值越小优先级越高)
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// 5-15: 结构级转换 (Record)
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pipeline.Register(new RecordConverter());
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// 20-35: 主构造函数
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pipeline.Register(new PrimaryConstructorConverter());
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// 10-30: 类型映射
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pipeline.Register(new NullableTypeConverter());
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pipeline.Register(new PrimitiveTypeConverter());
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pipeline.Register(new CollectionTypeConverter());
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// 40-55: 结构处理 + switch 表达式
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pipeline.Register(new InheritanceConverter());
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pipeline.Register(new NullCoalescingConverter());
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pipeline.Register(new ModifierRemover());
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pipeline.Register(new SwitchExpressionConverter());
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// 50-70: 语法转换
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pipeline.Register(new LambdaConverter());
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pipeline.Register(new PatternMatchingConverter());
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pipeline.Register(new PropertyConverter());
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// 80-100: API 映射
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pipeline.Register(new LinqToStreamConverter());
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pipeline.Register(new AsyncConverter());
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pipeline.Register(new RangeIndexConverter());
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// 110+: 输出处理
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pipeline.Register(new ConsoleConverter());
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return pipeline;
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}
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/// <summary>
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/// 转换语法节点
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/// </summary>
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public Interfaces.SyntaxNode ConvertNode(Interfaces.SyntaxNode node, ConversionContext context)
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public SyntaxNode ConvertNode(SyntaxNode node, ConversionContext context)
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{
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var newNode = new Interfaces.SyntaxNode
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var newNode = new SyntaxNode
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{
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Type = node.Type,
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Text = ConvertText(node.Text, context),
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Metadata = new Dictionary<string, object?>(node.Metadata),
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Parent = node.Parent,
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Children = new List<Interfaces.SyntaxNode>(),
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IsUnconvertible = node.IsUnconvertible,
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TodoDescription = node.TodoDescription
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Text = ConvertText(node.Text ?? "", context),
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Children = new List<SyntaxNode>()
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};
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foreach (var child in node.Children)
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@@ -91,59 +113,276 @@ public class CSharpToJavaStrategy : IConversionStrategy
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return newNode;
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}
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public string MapType(string sourceType)
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{
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return _typeMapper.MapType(sourceType);
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}
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private string ConvertText(string text, ConversionContext context)
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{
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var result = text;
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if (string.IsNullOrWhiteSpace(text)) return text;
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// 命名空间转 package
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if (result.StartsWith("namespace "))
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var sw = Stopwatch.StartNew();
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var packageName = "";
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var imports = new HashSet<string>();
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var codeLines = new List<string>();
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var docStrings = new List<(int LineIndex, string Content)>();
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var lines = text.Split('\n').ToList();
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for (int i = 0; i < lines.Count; i++)
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{
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result = result.Replace("namespace ", "package ")
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.Replace("{", ";");
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var line = lines[i];
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var processedLine = line.Trim();
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if (string.IsNullOrWhiteSpace(processedLine)) continue;
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// XML 文档注释 (/// <summary> ... </summary>)
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if (processedLine.StartsWith("///"))
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{
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if (context.Options?.KeepDocStrings == true)
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{
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docStrings.Add((codeLines.Count, processedLine));
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}
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continue;
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}
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// 单行注释 (//)
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if (processedLine.StartsWith("//"))
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{
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if (context.Options?.KeepComments == true)
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{
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codeLines.Add(processedLine);
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}
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continue;
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}
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// 多行注释 (/* ... */)
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if (processedLine.StartsWith("/*") || processedLine.StartsWith("*") || processedLine.StartsWith("*/"))
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{
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if (context.Options?.KeepComments == true)
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{
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codeLines.Add(processedLine);
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}
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continue;
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}
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// File-scoped namespace
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if (processedLine.StartsWith("namespace ") && !processedLine.Contains("{"))
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{
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var nsMatch = Regex.Match(processedLine, @"namespace\s+([\w.]+)");
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if (nsMatch.Success) packageName = nsMatch.Groups[1].Value;
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continue;
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}
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// Braced namespace
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if (processedLine.StartsWith("namespace ") && processedLine.Contains("{"))
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{
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var nsMatch = Regex.Match(processedLine, @"namespace\s+([\w.]+)");
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if (nsMatch.Success) packageName = nsMatch.Groups[1].Value;
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continue;
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}
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// Skip namespace block braces
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if (processedLine == "{" || processedLine == "}") continue;
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// Using statements
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if (processedLine.StartsWith("using "))
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{
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var usingMatch = Regex.Match(processedLine, @"using\s+([\w.]+);");
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if (usingMatch.Success) imports.Add($"import {usingMatch.Groups[1].Value};");
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continue;
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}
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// 检测不可转换语法并记录 issue
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DetectUnconvertibleSyntax(processedLine, context);
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// 应用转换管道
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var convertedLine = _pipeline.Execute(processedLine, context);
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// 在转换后的代码前插入文档注释
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if (docStrings.Count > 0 && docStrings[0].LineIndex == codeLines.Count)
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{
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var pendingDocs = docStrings.Where(d => d.LineIndex == codeLines.Count).ToList();
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foreach (var doc in pendingDocs)
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{
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// 将 XML Doc 转换为 JavaDoc 格式
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var javadoc = ConvertXmlDocToJavadoc(doc.Content);
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codeLines.Add(javadoc);
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}
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docStrings.RemoveAll(d => d.LineIndex == codeLines.Count - pendingDocs.Count);
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}
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codeLines.Add(convertedLine);
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}
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// using 转 import
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if (result.StartsWith("using "))
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sw.Stop();
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// 生成输出
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var output = new StringBuilder();
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if (!string.IsNullOrEmpty(packageName)) output.AppendLine($"package {packageName};");
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foreach (var imp in imports.OrderBy(i => i)) output.AppendLine(imp);
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if (imports.Count > 0 || !string.IsNullOrEmpty(packageName)) output.AppendLine();
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foreach (var line in codeLines)
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{
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result = result.Replace("using ", "import ")
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.Replace(";", ";");
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if (!string.IsNullOrWhiteSpace(line)) output.AppendLine(line);
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}
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// 类型映射
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foreach (var mapping in _typeMappings)
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return output.ToString().TrimEnd();
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}
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/// <summary>
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/// 将 C# XML 文档注释转换为 JavaDoc 格式
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/// </summary>
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private string ConvertXmlDocToJavadoc(string xmlDocLine)
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{
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return xmlDocLine
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.Replace("///", " *")
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.Replace("<summary>", "")
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.Replace("</summary>", "")
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.Replace("<param name=", "@param ")
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.Replace("<returns>", "@return")
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.Replace("</returns>", "")
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.Replace("<exception cref=", "@throws ")
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.Replace("</exception>", "")
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.Trim();
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}
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/// <summary>
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/// 检测不可直接转换的 C# 语法
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/// </summary>
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private static void DetectUnconvertibleSyntax(string line, ConversionContext context)
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{
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// 检测 LINQ 链式调用 - 需要转换为 Stream API
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if (Regex.IsMatch(line, @"\.where\s*\(.*\)\s*\.select\s*\(", RegexOptions.IgnoreCase) ||
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Regex.IsMatch(line, @"\.orderby\s*\(") ||
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Regex.IsMatch(line, @"\.groupby\s*\("))
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{
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result = result.Replace(mapping.SourceType, mapping.TargetType);
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context.Issues.Add(new ConversionIssue
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{
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Type = "UnconvertibleSyntax",
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Severity = "Low",
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Description = "LINQ method chain detected - auto-converted to Stream API",
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Suggestion = "Verify Stream API equivalence manually",
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SourceSyntax = line.Trim()
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});
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}
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// 检测 async/await - 需要转换为 CompletableFuture 或回调
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if (Regex.IsMatch(line, @"\basync\b|\bawait\b"))
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{
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context.Issues.Add(new ConversionIssue
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{
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Type = "UnconvertibleSyntax",
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Severity = "Medium",
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Description = "async/await pattern detected, converted to synchronous call",
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Suggestion = "Consider using CompletableFuture or Executor for async operations",
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SourceSyntax = line.Trim()
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});
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}
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// 检测 record - 需确认转换正确性
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if (Regex.IsMatch(line, @"\brecord\s+\w+"))
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{
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context.Issues.Add(new ConversionIssue
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{
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Type = "UnconvertibleSyntax",
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Severity = "Low",
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Description = "Record type converted to class",
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Suggestion = "Consider adding @Value annotation for immutability (Lombok)",
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SourceSyntax = line.Trim()
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});
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}
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// 检测 init-only 属性 - 语义丢失警告
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if (Regex.IsMatch(line, @"get;\s*init;"))
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{
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context.Issues.Add(new ConversionIssue
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{
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Type = "UnconvertibleSyntax",
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Severity = "Low",
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Description = "Init-only property: immutability is lost in Java setter",
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Suggestion = "Remove the setter or mark the field as @ReadOnly",
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SourceSyntax = line.Trim()
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});
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}
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// 检测 var 隐式类型 - 警告
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if (Regex.IsMatch(line, @"\bvar\s+\w+\s*="))
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{
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context.Issues.Add(new ConversionIssue
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{
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Type = "UnconvertibleSyntax",
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Severity = "Low",
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Description = "Implicit type 'var' mapped to Object",
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Suggestion = "Use explicit type declaration",
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SourceSyntax = line.Trim()
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});
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}
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// 检测 switch 表达式 - 需验证转换正确性
|
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if (Regex.IsMatch(line, @"\bswitch\s*{"))
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{
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context.Issues.Add(new ConversionIssue
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{
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Type = "UnconvertibleSyntax",
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Severity = "Low",
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Description = "Switch expression converted to if-else chain",
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Suggestion = "Verify logic equivalence manually",
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SourceSyntax = line.Trim()
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});
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}
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// 检测主构造函数 - 需验证
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if (Regex.IsMatch(line, @"class\s+\w+\s*\(\s*\w+\s+\w+"))
|
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{
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context.Issues.Add(new ConversionIssue
|
||||
{
|
||||
Type = "UnconvertibleSyntax",
|
||||
Severity = "Low",
|
||||
Description = "Primary constructor converted to traditional constructor",
|
||||
Suggestion = "Verify field assignments in generated constructor",
|
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SourceSyntax = line.Trim()
|
||||
});
|
||||
}
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||||
|
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// C# 特定语法处理
|
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result = result.Replace("base.", "super.")
|
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.Replace("this.", "this.")
|
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.Replace("null", "null")
|
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.Replace("true", "true")
|
||||
.Replace("false", "false");
|
||||
|
||||
// 属性转方法
|
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result = System.Text.RegularExpressions.Regex.Replace(
|
||||
result,
|
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@"public\s+(\w+)\s+(\w+)\s*\{\s*get;\s*set;\s*\}",
|
||||
"private $1 $2;\n public $1 get$2() { return $2; }\n public void set$2($1 value) { this.$2 = value; }"
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||||
);
|
||||
|
||||
return result;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 类型映射
|
||||
/// C# 到 Java 类型映射器
|
||||
/// </summary>
|
||||
public class TypeMapping
|
||||
public class CSharpJavaTypeMapper : ITypeMapper
|
||||
{
|
||||
public string SourceType { get; set; }
|
||||
public string TargetType { get; set; }
|
||||
|
||||
public TypeMapping(string source, string target)
|
||||
private readonly Dictionary<string, string> _mappings = new()
|
||||
{
|
||||
SourceType = source;
|
||||
TargetType = target;
|
||||
{ "string", "String" },
|
||||
{ "int", "Integer" },
|
||||
{ "long", "Long" },
|
||||
{ "float", "Float" },
|
||||
{ "double", "Double" },
|
||||
{ "bool", "Boolean" },
|
||||
{ "byte", "Byte" },
|
||||
{ "char", "Character" },
|
||||
{ "short", "Short" },
|
||||
{ "void", "void" },
|
||||
{ "var", "Object" },
|
||||
{ "object", "Object" },
|
||||
};
|
||||
|
||||
public string MapType(string sourceType)
|
||||
{
|
||||
return _mappings.TryGetValue(sourceType, out var target) ? target : sourceType;
|
||||
}
|
||||
|
||||
public string MapGenericType(string sourceType)
|
||||
{
|
||||
var match = Regex.Match(sourceType, @"(\w+)<(.+)>");
|
||||
if (match.Success)
|
||||
{
|
||||
var outer = MapType(match.Groups[1].Value);
|
||||
var inner = match.Groups[2].Value;
|
||||
return $"{outer}<{inner}>";
|
||||
}
|
||||
return MapType(sourceType);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user