RosettaCodeData/Task/Stack-traces/Elena/stack-traces.elena

import extensions;

public singleton program
{
    inner()
    {
        console.printLine(new CallStack())
    }

    middle()
    {
        self.inner()
    }

    outer()
    {
        self.middle()
    }

    // program entry point
    closure()
    {
        program.outer()
    }
}