WIP

Author: dex3r

EasySourceGenerators.GeneratorTests/SimpleMethodWithParameter.cs

@@ -0,0 +1,27 @@
+namespace EasySourceGenerators.GeneratorTests;
+
+public class SimpleMethodWithParameterTests
+{
+    [Test]
+    public void SimpleMethodWithParameterTests_Test()
+    {
+        string source = """
+                        using EasySourceGenerators.Abstractions;
+
+                        namespace TestNamespace;
+
+                        public partial class SimpleMethodWithParameterClass
+                        {
+                            public partial int SimpleMethodWithParameter(int someIntParameter);
+
+                            [GeneratesMethod(sameClassMethodName: nameof(SimpleMethodWithParameter))]
+                            private static int SimpleMethodWithParameter_Generator(int someIntParameter)
+                            {
+                                return 5;
+                            }
+                        }
+                        """;
+
+        //TODO: This should not compile and throw error MSGH007
+    }
+}

EasySourceGenerators.Generators/AnalyzerReleases.Unshipped.md

@@ -7,4 +7,5 @@ MSGH002 | GeneratesMethodGenerator | Error | GeneratesMethodGenerator
 MSGH003 | GeneratesMethodGenerator | Disabled | GeneratesMethodGenerator
 MSGH004 | GeneratesMethodGenerator | Error | GeneratesMethodGenerator
 MSGH005 | GeneratesMethodGenerator | Error | GeneratesMethodGenerator
-MSGH006 | GeneratesMethodGenerator | Error | GeneratesMethodGenerator
+MSGH006 | GeneratesMethodGenerator | Error | GeneratesMethodGenerator
+MSGH007 | GeneratesMethodGenerator | Error | GeneratesMethodGeneratorDiagnostics

EasySourceGenerators.Generators/GeneratesMethodGenerator.Diagnostics.cs

@@ -53,4 +53,12 @@ internal static class GeneratesMethodGeneratorDiagnostics
         category: Category,
         defaultSeverity: DiagnosticSeverity.Error,
         isEnabledByDefault: true);
+    
+    internal static readonly DiagnosticDescriptor CannotUseRuntimeParameterForCompileTimeGeneratorError = new(
+        id: "MSGH007",
+        title: "Cannot use runtime parameter for compile-time generator",
+        messageFormat: "Method generators cannot have any parameters, as they will be run at compile time to generate the method output value. Use MethodTemplate if you want to emit method body instead of single value.",
+        category: Category,
+        defaultSeverity: DiagnosticSeverity.Error,
+        isEnabledByDefault: true);
 }