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>
2026-06-16 07:08:11 +00:00
parent f772973b68
commit db536cfb2c
70 changed files with 6999 additions and 2240 deletions
@@ -0,0 +1,76 @@
+using System.Text;
+using System.Text.RegularExpressions;
+using CodePlay.Core.Interfaces;
+using CodePlay.Core.Models;
+
+namespace CodePlay.Core.Pipeline.Converters;
+
+/// <summary>
+/// 继承转换器 - class Derived : Base → class Derived extends Base
+/// </summary>
+public class InheritanceConverter : ILineConverter
+{
+    public int Priority => 40;
+    
+    public string Convert(string line, ConversionContext context)
+    {
+        // 只处理类声明行
+        if (!line.Contains("class ") || !line.Contains(":"))
+            return line;
+        
+        var match = Regex.Match(line, 
+            @"((?:public|private|protected|internal|abstract|sealed|static)\s+)?\s*(class\s+(\w+)(?:\s*<[^>]*>)?)\s*:\s*([^{]+)");
+        
+        if (!match.Success) return line;
+        
+        var modifiers = match.Groups[1].Value.Trim();
+        var classDecl = match.Groups[2].Value.Trim();
+        var className = match.Groups[3].Value;
+        var parents = match.Groups[4].Value.Trim();
+        
+        // 移除可能的大括号
+        var braceIdx = parents.IndexOf('{');
+        if (braceIdx >= 0)
+            parents = parents.Substring(0, braceIdx).TrimEnd();
+        
+        var parts = parents.Split(',')
+            .Select(p => p.Trim())
+            .Where(p => !string.IsNullOrEmpty(p))
+            .ToList();
+        
+        // 第一个没有 I 前缀的是基类
+        var baseClass = parts.FirstOrDefault(p => !p.StartsWith("I")) ?? "";
+        var interfaces = parts.Where(p => p.StartsWith("I")).ToList();
+        // 如果所有部分都有 I 前缀，则全部作为接口（Java 中所有类隐式继承 Object）
+        if (string.IsNullOrEmpty(baseClass) && parts.Count > 0)
+        {
+            baseClass = ""; // 没有基类
+            interfaces = parts.ToList(); // 全部作为接口
+        }
+        // 如果有基类且还有其他部分，其余部分作为接口
+        else if (!string.IsNullOrEmpty(baseClass) && parts.Count > 1)
+        {
+            var nonBaseInterfaces = parts.Where(p => p != baseClass).ToList();
+            foreach (var iface in nonBaseInterfaces)
+            {
+                if (!interfaces.Contains(iface))
+                    interfaces.Add(iface);
+            }
+        }
+        
+        var sb = new StringBuilder();
+        sb.Append($"{modifiers} {classDecl}");
+        
+        if (!string.IsNullOrEmpty(baseClass))
+        {
+            sb.Append($" extends {baseClass}");
+        }
+        
+        if (interfaces.Count > 0)
+        {
+            sb.Append($" implements {string.Join(", ", interfaces)}");
+        }
+        
+        return sb.ToString();
+    }
+}