scope() and FileConduit (D1 and Tango)

[Nick Sabalausky]

I'd like some clarification on the way scope() works, and also Tango's 
FileConduit. In the following function:

void load(char[] infilename)
{
    auto file = new FileConduit(infilename);
    scope(exit) file.close();

    // Load data
}

What happens if infilename doesn't exist? Does FileConduit's constructor 
throw an exception? If so, file.close() isn't called, is it?