C# (CSharp) Lisp.Import示例

示例#1

文件： ScriptLispTests.cs 项目： zeko77/ServiceStack

        public void Can_import_into_global_symbols()
        {
            var SExprs = Lisp.Parse("(fib 10)");

            var lispCtx = Lisp.CreateInterpreter();

            try
            {
                lispCtx.Eval(SExprs);
                Assert.Fail("should throw");
            }
            catch (LispEvalException e) {}

            Lisp.Import(@"
(defun fib (n)
  (if (< n 2)
      1
    (+ (fib (- n 1))
       (fib (- n 2)) )
  ))
");
            lispCtx = Lisp.CreateInterpreter();

            Assert.That(lispCtx.Eval(SExprs), Is.EqualTo(89));

            Lisp.Reset();

            lispCtx = Lisp.CreateInterpreter();
            try
            {
                lispCtx.Eval(SExprs);
                Assert.Fail("should throw");
            }
            catch (LispEvalException e) {}
        }