- tweak: View autogenerator

Nebula.SourceGenerators/DependencyAutoGenerator.cs

@@ -71,7 +71,7 @@ partial class {className}
             ";
 
             // Add the source code to the compilation.
-            context.AddSource($"{className}.g.cs", SourceText.From(code, Encoding.UTF8));
+            context.AddSource($"{className}_dependencyAuto.g.cs", SourceText.From(code, Encoding.UTF8));
         }
     }
 

Nebula.SourceGenerators/SourceHelper.cs

@@ -7,24 +7,6 @@ namespace Nebula.SourceGenerators;
 
 public static class SourceHelper
 {
-    public static void GenerateAttribute(string attributeName, string usage,
-        IncrementalGeneratorInitializationContext context)
-    {
-        var attributeSourceCode = $@"// <auto-generated/>
-
-namespace SourceGen
-{{
-    [System.AttributeUsage(System.AttributeTargets.{usage})]
-    public class {attributeName} : System.Attribute
-    {{
-    }}
-}}";
-
-        context.RegisterPostInitializationOutput(ctx => ctx.AddSource(
-            $"{attributeName}.g.cs",
-            SourceText.From(attributeSourceCode, Encoding.UTF8)));
-    }
-    
     public static bool HasAttribute(ISymbol type, string attributeName)
     {
         foreach (var attribute in type.GetAttributes())

Nebula.SourceGenerators/ViewConstructGenerator.cs

@@ -1,4 +1,6 @@
+using System;
 using System.Collections.Immutable;
+using System.Linq;
 using System.Text;
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp.Syntax;
@@ -6,53 +8,82 @@ using Microsoft.CodeAnalysis.Text;
 
 namespace Nebula.SourceGenerators;
 
-//[Generator]
-public class ViewConstructGenerator : IIncrementalGenerator
+
+[Generator]
+public class ViewConstructorGenerator : IIncrementalGenerator
 {
-    public static string ViewForModelAttributeName = "ViewForModelAttribute";
-    
+    private static readonly string ViewModelAttribute = "Nebula.Shared.ViewHelper.ViewModelRegisterAttribute";
     public void Initialize(IncrementalGeneratorInitializationContext context)
     {
         var provider = context.SyntaxProvider
             .CreateSyntaxProvider(
-                (s, _) => s is ClassDeclarationSyntax, (ctx, _) =>
-                    SourceHelper.GetClassDeclarationForSourceGen(ctx,ViewForModelAttributeName)
-            )
+                (s, _) => s is ClassDeclarationSyntax,
+                (ctx, _) => SourceHelper.GetClassDeclarationForSourceGen(ctx,ViewModelAttribute))
             .Where(t => t.reportAttributeFound)
-            .Select((t,_) => t.Item1);
-        
-        context.RegisterSourceOutput(context.CompilationProvider.Combine(provider.Collect()), (ctx,t)=> GenerateCode(ctx, t.Left, t.Right));
+            .Select((t, _) => t.Item1);
+
+        context.RegisterSourceOutput(context.CompilationProvider.Combine(provider.Collect()),
+            (ctx, t) => GenerateCode(ctx, t.Left, t.Right));
     }
 
-    private void GenerateCode(SourceProductionContext context, Compilation compilation, ImmutableArray<ClassDeclarationSyntax> syntaxes)
+    private void GenerateCode(SourceProductionContext context, Compilation compilation,
+        ImmutableArray<ClassDeclarationSyntax> classDeclarations)
     {
-        foreach (var classDeclarationSyntax in syntaxes)
+        foreach (var classDeclarationSyntax in classDeclarations)
         {
             var semanticModel = compilation.GetSemanticModel(classDeclarationSyntax.SyntaxTree);
-            if(semanticModel.GetDeclaredSymbol(classDeclarationSyntax) is not INamedTypeSymbol classSymbol)
+            if (semanticModel.GetDeclaredSymbol(classDeclarationSyntax) is not INamedTypeSymbol classSymbol)
                 continue;
             
-            var namespaceName = classSymbol.ContainingNamespace.ToDisplayString();
-            var className = classDeclarationSyntax.Identifier.Text;
+            var viewModelName = classSymbol.Name;
+            var viewModelNamespace = classSymbol.ContainingNamespace.ToDisplayString();
             
-            var code = $@"// <auto-generated/>
+            var viewModelRegisterAttr = classSymbol.GetAttributes()
+                .FirstOrDefault(attr => attr.AttributeClass?.ToDisplayString() == ViewModelAttribute);
 
-using System;
-using System.Collections.Generic;
+            var viewTypeArg = viewModelRegisterAttr?.ConstructorArguments.FirstOrDefault();
+            if (viewTypeArg?.Value is not INamedTypeSymbol viewTypeSymbol)
+                continue;
 
-namespace {namespaceName};
-
-partial class {className}
+            try
+            {
+                var viewName = viewTypeSymbol.Name;
+                var viewNamespace = viewTypeSymbol.ContainingNamespace.ToDisplayString();
+            
+                var code = $@"
+namespace {viewNamespace}
 {{
-    public {className}() : base(){{
-
-     
+    public partial class {viewName}
+    {{
+       public {viewName}({viewModelNamespace}.{viewModelName} viewModel)
+        : this()
+        {{
+            DataContext = viewModel;
+        }}
     }}
-}}
-            ";
+}}";
+            
+                // Add the source code to the compilation.
+                context.AddSource($"{viewName}_viewConstructAuto.g.cs", SourceText.From(code, Encoding.UTF8));
+            }
+            catch (Exception e)
+            {
+                var coder1 = $@"
+// <auto-generated/>
+// Error!
+namespace {viewModelNamespace}
+{{
+    public partial class {viewModelName}
+    {{
+        // {e.Message}
+    }}
+}}";
 
-            // Add the source code to the compilation.
-            context.AddSource($"{className}.g.cs", SourceText.From(code, Encoding.UTF8));
+                // Add the source code to the compilation.
+                context.AddSource($"{viewModelName}_viewError.g.cs", SourceText.From(coder1, Encoding.UTF8));
+            }
         }
     }
+
+
 }