Bug 33527 - "Error CS0584: Internal compiler error: The method or operation is not implemented." - caused by using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory
Summary: "Error CS0584: Internal compiler error: The method or operation is not implem...
Alias: None
Product: Compilers
Classification: Mono
Component: C# ()
Version: unspecified
Hardware: PC Linux
: --- normal
Target Milestone: ---
Assignee: Marek Safar
Depends on:
Reported: 2015-08-31 22:19 UTC by David Lechner
Modified: 2015-09-01 05:49 UTC (History)
1 user (show)

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

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Description David Lechner 2015-08-31 22:19:14 UTC
This error was introduced in https://github.com/mono/mono/commit/322af7e0746e31392dde6c435b30c0eabb27de72.

I'm hitting the `throw new NotImplementedException ();` in line 1180.

Running mono 4.2 from the alpha repository.

Test Case (requires Microsoft.CodeAnalysis.CSharp package from nuget):

using Microsoft.CodeAnalysis.CSharp.Syntax;

using static Microsoft.CodeAnalysis.CSharp.SyntaxFactory;

namespace TestCase {

    static class Extension
        public static T DoSomething<T> (this T syntax) where T : TypeDeclarationSyntax
            var methodList = new List<MethodDeclarationSyntax> ();

            return syntax;

When compiling, I get the error "Error CS0584: Internal compiler error: The method or operation is not implemented." on the line `var methodList = new List<MethodDeclarationSyntax> ();`.

If I remove the `static using` line, it compiles OK.

This code compiles fine with Mono 4.0, but fails in 4.2.
Comment 1 Marek Safar 2015-09-01 05:49:19 UTC
Fixed in master and mono 4.2 branch