Bug 13523 - System.CodeDom generates invalid C# code.
Summary: System.CodeDom generates invalid C# code.
Alias: None
Product: Class Libraries
Classification: Mono
Component: System ()
Version: unspecified
Hardware: PC Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Marek Safar
Depends on:
Reported: 2013-07-26 13:34 UTC by Jonathan Pryor
Modified: 2013-07-30 14:19 UTC (History)
2 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Jonathan Pryor 2013-07-26 13:34:19 UTC
Context: https://github.com/mono/mono/commit/e43a6401f8f2989263f80df7538c5e717e550d2d#commitcomment-3726073

Consider the following program:

  $ cat > cdom.cs <<EOF
  using System;
  using System.CodeDom;
  using System.CodeDom.Compiler;

  class Test {
    public static void Main ()
      var gen = CodeDomProvider.CreateProvider ("C#");
      var code = new CodeCompileUnit () {
        AssemblyCustomAttributes = {
          new CodeAttributeDeclaration (
            new CodeTypeReference (typeof (CLSCompliantAttribute)),
            new CodeAttributeArgument (new CodePrimitiveExpression (false))),
        Namespaces = {
          new CodeNamespace () {
            Types = {
              new CodeTypeDeclaration ("Resources"),
      gen.GenerateCodeFromCompileUnit (code, Console.Out, null);
  $ gmcs cdom.cs

The generated code is invalid:

  $ mono cdom.exe
  public class Resources {
  [assembly: System.CLSCompliantAttribute(false)]

The assembly-level custom attribute MUST precede any type definitions, otherwise a CS1730 is generated.

.NET generates proper code:

  [assembly: System.CLSCompliantAttribute(false)]

  public class Resources {
Comment 1 Marek Safar 2013-07-30 14:19:22 UTC
Fixed in master