public void TestFixedSizeBuffers() { var sourceTemplate = @" unsafe struct S {{ fixed int {0}[1]; fixed int {0}1[1]; }} "; int padding = GeneratedNames.MakeFixedFieldImplementationName("A").Length - 1; string longName = s_longSymbolName.Substring(padding); var source = string.Format(sourceTemplate, longName); var comp = CreateCompilationWithMscorlib(source, options: TestOptions.UnsafeReleaseDll); comp.VerifyDiagnostics(); // CONSIDER: Location would light up if synthesized methods had them. comp.VerifyEmitDiagnostics( // error CS7013: Name '<longName1>e__FixedBuffer' exceeds the maximum length allowed in metadata. Diagnostic(ErrorCode.ERR_MetadataNameTooLong).WithArguments("<" + longName + 1 + ">e__FixedBuffer").WithLocation(1, 1)); }