feat(generator): 添加 BindNodeSignal 和 GetNode 源代码生成器

- 实现 BindNodeSignalGenerator 用于生成节点信号绑定与解绑逻辑
- 实现 GetNodeGenerator 用于生成 Godot 节点获取注入逻辑
- 添加 BindNodeSignalDiagnostics 提供详细的诊断错误信息
- 集成到 AnalyzerReleases.Unshipped.md 追踪新的分析规则
- 支持 [BindNodeSignal] 属性的方法自动生成事件绑定代码
- 支持 [GetNode] 属性的字段自动生成节点获取代码
- 提供生命周期方法集成的智能提示和验证功能

GFramework.Godot.SourceGenerators.Tests/BindNodeSignal/BindNodeSignalGeneratorTests.cs

@@ -526,11 +526,11 @@ public class BindNodeSignalGeneratorTests
             TestBehaviors = TestBehaviors.SkipGeneratedSourcesCheck
         };
 
-        test.ExpectedDiagnostics.Add(new DiagnosticResult("GF_Godot_BindNodeSignal_011", DiagnosticSeverity.Error)
+        test.ExpectedDiagnostics.Add(new DiagnosticResult("GF_Common_Class_002", DiagnosticSeverity.Error)
             .WithLocation(0)
             .WithArguments("Hud", "__BindNodeSignals_Generated"));
 
-        test.ExpectedDiagnostics.Add(new DiagnosticResult("GF_Godot_BindNodeSignal_011", DiagnosticSeverity.Error)
+        test.ExpectedDiagnostics.Add(new DiagnosticResult("GF_Common_Class_002", DiagnosticSeverity.Error)
             .WithLocation(1)
             .WithArguments("Hud", "__UnbindNodeSignals_Generated"));
 

GFramework.Godot.SourceGenerators.Tests/GetNode/GetNodeGeneratorTests.cs

@@ -1,8 +1,4 @@
 using GFramework.Godot.SourceGenerators.Tests.Core;
-using Microsoft.CodeAnalysis;
-using Microsoft.CodeAnalysis.CSharp.Testing;
-using Microsoft.CodeAnalysis.Testing;
-using NUnit.Framework;
 
 namespace GFramework.Godot.SourceGenerators.Tests.GetNode;
 
@@ -240,4 +236,71 @@ public class GetNodeGeneratorTests
 
         await test.RunAsync();
     }
+
+    [Test]
+    public async Task Reports_Diagnostic_When_Generated_Injection_Method_Name_Already_Exists()
+    {
+        const string source = """
+                              using System;
+                              using GFramework.Godot.SourceGenerators.Abstractions;
+                              using Godot;
+
+                              namespace GFramework.Godot.SourceGenerators.Abstractions
+                              {
+                                  [AttributeUsage(AttributeTargets.Field, Inherited = false, AllowMultiple = false)]
+                                  public sealed class GetNodeAttribute : Attribute
+                                  {
+                                      public GetNodeAttribute() {}
+                                  }
+
+                                  public enum NodeLookupMode
+                                  {
+                                      Auto = 0
+                                  }
+                              }
+
+                              namespace Godot
+                              {
+                                  public class Node
+                                  {
+                                      public virtual void _Ready() {}
+                                      public T GetNode<T>(string path) where T : Node => throw new InvalidOperationException(path);
+                                      public T? GetNodeOrNull<T>(string path) where T : Node => default;
+                                  }
+
+                                  public class HBoxContainer : Node
+                                  {
+                                  }
+                              }
+
+                              namespace TestApp
+                              {
+                                  public partial class TopBar : HBoxContainer
+                                  {
+                                      [GetNode]
+                                      private HBoxContainer _leftContainer = null!;
+
+                                      private void {|#0:__InjectGetNodes_Generated|}()
+                                      {
+                                      }
+                                  }
+                              }
+                              """;
+
+        var test = new CSharpSourceGeneratorTest<GetNodeGenerator, DefaultVerifier>
+        {
+            TestState =
+            {
+                Sources = { source }
+            },
+            DisabledDiagnostics = { "GF_Common_Trace_001" },
+            TestBehaviors = TestBehaviors.SkipGeneratedSourcesCheck
+        };
+
+        test.ExpectedDiagnostics.Add(new DiagnosticResult("GF_Common_Class_002", DiagnosticSeverity.Error)
+            .WithLocation(0)
+            .WithArguments("TopBar", "__InjectGetNodes_Generated"));
+
+        await test.RunAsync();
+    }
 }

GFramework.Godot.SourceGenerators/AnalyzerReleases.Unshipped.md

@@ -21,4 +21,3 @@
  GF_Godot_BindNodeSignal_008 | GFramework.Godot | Warning  | BindNodeSignalDiagnostics 
  GF_Godot_BindNodeSignal_009 | GFramework.Godot | Warning  | BindNodeSignalDiagnostics 
  GF_Godot_BindNodeSignal_010 | GFramework.Godot | Error    | BindNodeSignalDiagnostics 
- GF_Godot_BindNodeSignal_011 | GFramework.Godot | Error    | BindNodeSignalDiagnostics 

GFramework.Godot.SourceGenerators/BindNodeSignalGenerator.cs

@@ -1,3 +1,4 @@
+using System.Runtime.CompilerServices;
 using GFramework.Godot.SourceGenerators.Diagnostics;
 using GFramework.SourceGenerators.Common.Constants;
 using GFramework.SourceGenerators.Common.Diagnostics;
@@ -88,7 +89,11 @@ public sealed class BindNodeSignalGenerator : IIncrementalGenerator
             if (!CanGenerateForType(context, group, typeSymbol))
                 continue;
 
-            if (HasGeneratedMethodNameConflict(context, group, typeSymbol))
+            if (typeSymbol.ReportGeneratedMethodConflicts(
+                    context,
+                    group.Methods[0].Method.Identifier.GetLocation(),
+                    BindMethodName,
+                    UnbindMethodName))
                 continue;
 
             var bindings = new List<SignalBindingInfo>();
@@ -390,36 +395,6 @@ public sealed class BindNodeSignalGenerator : IIncrementalGenerator
             typeSymbol.Name));
     }
 
-    private static bool HasGeneratedMethodNameConflict(
-        SourceProductionContext context,
-        TypeGroup group,
-        INamedTypeSymbol typeSymbol)
-    {
-        var hasConflict = false;
-
-        foreach (var generatedMethodName in new[] { BindMethodName, UnbindMethodName })
-        {
-            var conflictingMethod = typeSymbol.GetMembers()
-                .OfType<IMethodSymbol>()
-                .FirstOrDefault(method =>
-                    method.Name == generatedMethodName &&
-                    method.Parameters.Length == 0 &&
-                    method.TypeParameters.Length == 0);
-
-            if (conflictingMethod is null)
-                continue;
-
-            context.ReportDiagnostic(Diagnostic.Create(
-                BindNodeSignalDiagnostics.GeneratedMethodNameConflict,
-                conflictingMethod.Locations.FirstOrDefault() ?? group.Methods[0].Method.Identifier.GetLocation(),
-                typeSymbol.Name,
-                generatedMethodName));
-            hasConflict = true;
-        }
-
-        return hasConflict;
-    }
-
     private static IMethodSymbol? FindLifecycleMethod(
         INamedTypeSymbol typeSymbol,
         string methodName)
@@ -627,7 +602,7 @@ public sealed class BindNodeSignalGenerator : IIncrementalGenerator
 
         public int GetHashCode(MethodCandidate obj)
         {
-            return System.Runtime.CompilerServices.RuntimeHelpers.GetHashCode(obj);
+            return RuntimeHelpers.GetHashCode(obj);
         }
     }
 }

GFramework.Godot.SourceGenerators/Diagnostics/BindNodeSignalDiagnostics.cs

@@ -126,16 +126,4 @@ public static class BindNodeSignalDiagnostics
             PathContests.GodotNamespace,
             DiagnosticSeverity.Error,
             true);
-
-    /// <summary>
-    ///     用户代码中已存在与生成方法同名的成员。
-    /// </summary>
-    public static readonly DiagnosticDescriptor GeneratedMethodNameConflict =
-        new(
-            "GF_Godot_BindNodeSignal_011",
-            "Generated method name conflicts with an existing member",
-            "Class '{0}' already defines method '{1}()', which conflicts with [BindNodeSignal] generated code",
-            PathContests.GodotNamespace,
-            DiagnosticSeverity.Error,
-            true);
 }

GFramework.Godot.SourceGenerators/GetNodeGenerator.cs

@@ -1,12 +1,6 @@
-using System.Collections.Immutable;
-using System.Text;
 using GFramework.Godot.SourceGenerators.Diagnostics;
 using GFramework.SourceGenerators.Common.Constants;
 using GFramework.SourceGenerators.Common.Diagnostics;
-using GFramework.SourceGenerators.Common.Extensions;
-using Microsoft.CodeAnalysis;
-using Microsoft.CodeAnalysis.CSharp;
-using Microsoft.CodeAnalysis.CSharp.Syntax;
 
 namespace GFramework.Godot.SourceGenerators;
 
@@ -95,6 +89,12 @@ public sealed class GetNodeGenerator : IIncrementalGenerator
             if (!CanGenerateForType(context, group, typeSymbol))
                 continue;
 
+            if (typeSymbol.ReportGeneratedMethodConflicts(
+                    context,
+                    group.Fields[0].Variable.Identifier.GetLocation(),
+                    InjectionMethodName))
+                continue;
+
             var bindings = new List<NodeBindingInfo>();
 
             foreach (var candidate in group.Fields)

GFramework.SourceGenerators.Common/AnalyzerReleases.Unshipped.md

@@ -1,9 +1,10 @@
 ; Unshipped analyzer release
-; https://github.com/dotnet/roslyn-analyzers/blob/main/src/Microsoft.CodeAnalysis.Analyzers/ReleaseTrackingAnalyzers.Help.md
+; https://github.com/dotnet/roslyn/blob/main/src/RoslynAnalyzers/Microsoft.CodeAnalysis.Analyzers/ReleaseTrackingAnalyzers.Help.md
 
 ### New Rules
 
  Rule ID             | Category          | Severity | Notes             
 ---------------------|-------------------|----------|-------------------
  GF_Common_Class_001 | GFramework.Common | Error    | CommonDiagnostics 
+ GF_Common_Class_002 | GFramework.Common | Error    | CommonDiagnostics 
  GF_Common_Trace_001 | GFramework.Trace  | Info     | CommonDiagnostics 

GFramework.SourceGenerators.Common/Diagnostics/CommonDiagnostics.cs

@@ -1,6 +1,4 @@
-using Microsoft.CodeAnalysis;
-
-namespace GFramework.SourceGenerators.Common.Diagnostics;
+namespace GFramework.SourceGenerators.Common.Diagnostics;
 
 /// <summary>
 ///     提供通用诊断描述符的静态类
@@ -27,6 +25,23 @@ public static class CommonDiagnostics
             true
         );
 
+    /// <summary>
+    ///     定义生成方法名与用户代码冲突的诊断描述符。
+    /// </summary>
+    /// <remarks>
+    ///     该诊断用于保护生成器保留的方法名，避免用户代码手动声明了相同零参数方法时出现重复成员错误，
+    ///     并使多个生成器可以复用同一条一致的冲突报告规则。
+    /// </remarks>
+    public static readonly DiagnosticDescriptor GeneratedMethodNameConflict =
+        new(
+            "GF_Common_Class_002",
+            "Generated method name conflicts with an existing member",
+            "Class '{0}' already defines method '{1}()', which conflicts with generated code",
+            "GFramework.Common",
+            DiagnosticSeverity.Error,
+            true
+        );
+
     /// <summary>
     ///     定义源代码生成器跟踪信息的诊断描述符
     /// </summary>

GFramework.SourceGenerators.Common/Extensions/GeneratedMethodConflictExtensions.cs

@@ -0,0 +1,49 @@
+using GFramework.SourceGenerators.Common.Diagnostics;
+
+namespace GFramework.SourceGenerators.Common.Extensions;
+
+/// <summary>
+///     提供生成方法名冲突校验的通用扩展。
+/// </summary>
+public static class GeneratedMethodConflictExtensions
+{
+    /// <summary>
+    ///     检查目标类型上是否已存在与生成器保留方法同名的零参数方法，并在冲突时报告统一诊断。
+    /// </summary>
+    /// <param name="typeSymbol">待校验的目标类型。</param>
+    /// <param name="context">源代码生成上下文。</param>
+    /// <param name="fallbackLocation">当冲突成员缺少源码位置时使用的后备位置。</param>
+    /// <param name="generatedMethodNames">生成器将保留的零参数方法名集合。</param>
+    /// <returns>若发现任一冲突则返回 <c>true</c>。</returns>
+    public static bool ReportGeneratedMethodConflicts(
+        this INamedTypeSymbol typeSymbol,
+        SourceProductionContext context,
+        Location fallbackLocation,
+        params string[] generatedMethodNames)
+    {
+        var hasConflict = false;
+
+        foreach (var generatedMethodName in generatedMethodNames.Distinct(StringComparer.Ordinal))
+        {
+            var conflictingMethod = typeSymbol.GetMembers()
+                .OfType<IMethodSymbol>()
+                .FirstOrDefault(method =>
+                    !method.IsImplicitlyDeclared &&
+                    string.Equals(method.Name, generatedMethodName, StringComparison.Ordinal) &&
+                    method.Parameters.Length == 0 &&
+                    method.TypeParameters.Length == 0);
+
+            if (conflictingMethod is null)
+                continue;
+
+            context.ReportDiagnostic(Diagnostic.Create(
+                CommonDiagnostics.GeneratedMethodNameConflict,
+                conflictingMethod.Locations.FirstOrDefault() ?? fallbackLocation,
+                typeSymbol.Name,
+                generatedMethodName));
+            hasConflict = true;
+        }
+
+        return hasConflict;
+    }
+}

GFramework.SourceGenerators.Tests/Rule/ContextGetGeneratorTests.cs

@@ -377,6 +377,84 @@ public class ContextGetGeneratorTests
         Assert.Pass();
     }
 
+    [Test]
+    public async Task Reports_Diagnostic_When_Generated_Injection_Method_Name_Already_Exists()
+    {
+        var source = """
+                     using System;
+                     using GFramework.SourceGenerators.Abstractions.Rule;
+
+                     namespace GFramework.SourceGenerators.Abstractions.Rule
+                     {
+                         [AttributeUsage(AttributeTargets.Class, Inherited = false)]
+                         public sealed class ContextAwareAttribute : Attribute { }
+
+                         [AttributeUsage(AttributeTargets.Field, Inherited = false)]
+                         public sealed class GetModelAttribute : Attribute { }
+                     }
+
+                     namespace GFramework.Core.Abstractions.Rule
+                     {
+                         public interface IContextAware { }
+                     }
+
+                     namespace GFramework.Core.Abstractions.Model
+                     {
+                         public interface IModel { }
+                     }
+
+                     namespace GFramework.Core.Abstractions.Systems
+                     {
+                         public interface ISystem { }
+                     }
+
+                     namespace GFramework.Core.Abstractions.Utility
+                     {
+                         public interface IUtility { }
+                     }
+
+                     namespace GFramework.Core.Extensions
+                     {
+                         public static class ContextAwareServiceExtensions
+                         {
+                             public static T GetModel<T>(this object contextAware) => default!;
+                         }
+                     }
+
+                     namespace TestApp
+                     {
+                         public interface IInventoryModel : GFramework.Core.Abstractions.Model.IModel { }
+
+                         [ContextAware]
+                         public partial class InventoryPanel
+                         {
+                             [GetModel]
+                             private IInventoryModel _model = null!;
+
+                             private void {|#0:__InjectContextBindings_Generated|}()
+                             {
+                             }
+                         }
+                     }
+                     """;
+
+        var test = new CSharpSourceGeneratorTest<ContextGetGenerator, DefaultVerifier>
+        {
+            TestState =
+            {
+                Sources = { source }
+            },
+            DisabledDiagnostics = { "GF_Common_Trace_001" },
+            TestBehaviors = TestBehaviors.SkipGeneratedSourcesCheck
+        };
+
+        test.ExpectedDiagnostics.Add(new DiagnosticResult("GF_Common_Class_002", DiagnosticSeverity.Error)
+            .WithLocation(0)
+            .WithArguments("InventoryPanel", "__InjectContextBindings_Generated"));
+
+        await test.RunAsync();
+    }
+
     [Test]
     public async Task Ignores_NonInferable_Const_Field_For_GetAll_Class_Without_Diagnostic()
     {

GFramework.SourceGenerators/Rule/ContextGetGenerator.cs

@@ -1,7 +1,5 @@
-using System.Text;
 using GFramework.SourceGenerators.Common.Constants;
 using GFramework.SourceGenerators.Common.Diagnostics;
-using GFramework.SourceGenerators.Common.Extensions;
 using GFramework.SourceGenerators.Common.Info;
 using GFramework.SourceGenerators.Diagnostics;
 
@@ -220,6 +218,12 @@ public sealed class ContextGetGenerator : IIncrementalGenerator
             if (!CanGenerateForType(context, workItem, symbols))
                 continue;
 
+            if (workItem.TypeSymbol.ReportGeneratedMethodConflicts(
+                    context,
+                    GetTypeLocation(workItem),
+                    InjectionMethodName))
+                continue;
+
             var bindings = CollectBindings(context, workItem, descriptors, symbols);
             if (bindings.Count == 0 && workItem.GetAllDeclaration is null)
                 continue;