public void EvaluateQualifiedCallExpression() { Context context = new Context(); Module module = new Module(null); context.SetValue("mod", module); Function function = new Function(context, new object[] { new Variable("X"), new Variable("Y") }, new AddExpression(new VariableExpression(new Variable("X")), new VariableExpression(new Variable("Y")))); module.Context.SetValue("add/2", function); module.AddExportNames(new string[] { "add/2" }); QualifiedCallExpression expr = new QualifiedCallExpression(new AtomExpression(new Atom("mod")), new AtomExpression(new Atom("add")), new IExpression[] { new ConstantExpression(1), new ConstantExpression(2) }); Assert.IsFalse(expr.HasVariable()); Assert.IsNotNull(expr.ModuleExpression); Assert.IsInstanceOfType(expr.ModuleExpression, typeof(AtomExpression)); Assert.IsNotNull(expr.NameExpression); Assert.IsInstanceOfType(expr.NameExpression, typeof(AtomExpression)); Assert.IsNotNull(expr.ArgumentExpressions); Assert.AreEqual(2, expr.ArgumentExpressions.Count); Assert.AreEqual(3, expr.Evaluate(context)); }
public void RaiseIfNoFunctionExported() { Context context = new Context(); Module module = new Module(null); context.SetValue("mod", module); Function function = new Function(context, new object[] { new Variable("X"), new Variable("Y") }, new AddExpression(new VariableExpression(new Variable("X")), new VariableExpression(new Variable("Y")))); module.Context.SetValue("add/2", function); QualifiedCallExpression expr = new QualifiedCallExpression(new AtomExpression(new Atom("mod")), new AtomExpression(new Atom("add")), new IExpression[] { new ConstantExpression(1), new ConstantExpression(2) }); try { expr.Evaluate(context); Assert.Fail(); } catch (Exception ex) { Assert.AreEqual("undefined function mod:add/2", ex.Message); } }