What gets disposed when "using" keyword is used

Question

Let's have an example:

using (var someObject = new SomeObject())
{
    var someOtherObject = new SomeOtherObject();
    someOtherObject.someMethod(); 
}

SomeOtherObject also implements IDisposable. Will be SomeOtherObject also disposed when SomeObject get disposed ? What will happen to the SomeOtherObject ? (disposing of SomeOtherObject is not implemented in the Dispose method of SomeObject)

Answer 1

No. Only fields in the using clause will be disposed. In your case only someObject.

Basically that code gets translated into

var someObject = null;
try
{
  someObject = new SomeObject()

  var someOtherObject = new SomeOtherObject();
  someOtherObject.someMethod(); 
}
finally
{
  if (someObject != null )
  someObject.Dispose()
}