[jira] [Created] (THRIFT-2462) prevent possible stack overflow due to recursive syntax support

["Jens Geyer (JIRA)" <ji...@apache.org>]

Jens Geyer created THRIFT-2462:
----------------------------------

             Summary: prevent possible stack overflow due to recursive syntax support
                 Key: THRIFT-2462
                 URL: https://issues.apache.org/jira/browse/THRIFT-2462
             Project: Thrift
          Issue Type: Improvement
          Components: C# - Compiler, Delphi - Compiler
    Affects Versions: 0.9.2
            Reporter: Jens Geyer


{code.title=Test.Thrift}
namespace * Thrift.Test

struct Foo {
  1: Bar bar
}

struct Bar {
  1: Foo foo 
}

service ThriftTest
{
  i32 testRecursive(1: Foo foo);
}
{code}

{code.title=TestClient.cs}
            var first = new Foo()
            {
                Bar = new Bar()
                {
                    Foo = new Foo()
                    {
                        Bar = new Bar()
                        {
                            Foo = null
                        }
                    }
                }
            };

            Console.Write("testRecursive(tree)");
            Console.WriteLine(" = {0}", client.testRecursive(first));


            Console.Write("testRecursive(ring)");
            first.Bar.Foo.Bar.Foo = first;  // now let the innermost leaf backpoint to the root node
            Console.WriteLine(" = {0}", client.testRecursive(first));
{code}

{code.title=output}
testRecursive(tree) = 4
testRecursive(ring)
Process is terminated due to StackOverflowException.
{code}




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