43 lines
1.7 KiB
C#
43 lines
1.7 KiB
C#
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using System.Collections.Immutable;
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using System.Linq;
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using Microsoft.CodeAnalysis;
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using Microsoft.CodeAnalysis.CSharp;
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using Microsoft.CodeAnalysis.CSharp.Syntax;
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using Microsoft.CodeAnalysis.Diagnostics;
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namespace Godot.SourceGenerators
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{
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[DiagnosticAnalyzer(LanguageNames.CSharp)]
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public class GlobalClassAnalyzer : DiagnosticAnalyzer
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{
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public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics
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=> ImmutableArray.Create(
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Common.GlobalClassMustDeriveFromGodotObjectRule,
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Common.GlobalClassMustNotBeGenericRule);
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public override void Initialize(AnalysisContext context)
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{
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context.ConfigureGeneratedCodeAnalysis(GeneratedCodeAnalysisFlags.None);
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context.EnableConcurrentExecution();
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context.RegisterSyntaxNodeAction(AnalyzeNode, SyntaxKind.ClassDeclaration);
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}
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private void AnalyzeNode(SyntaxNodeAnalysisContext context)
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{
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var typeClassDecl = (ClassDeclarationSyntax)context.Node;
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// Return if not a type symbol or the type is not a global class.
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if (context.ContainingSymbol is not INamedTypeSymbol typeSymbol ||
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!typeSymbol.GetAttributes().Any(a => a.AttributeClass?.IsGodotGlobalClassAttribute() ?? false))
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return;
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if (typeSymbol.IsGenericType)
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Common.ReportGlobalClassMustNotBeGeneric(context, typeClassDecl, typeSymbol);
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if (!typeSymbol.InheritsFrom("GodotSharp", GodotClasses.GodotObject))
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Common.ReportGlobalClassMustDeriveFromGodotObject(context, typeClassDecl, typeSymbol);
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}
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}
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}
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