| public Evaluate ( Context context, bool withvars = false ) : object | ||
| context | Context | |
| withvars | bool | |
| Результат | object | |
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);
}
}
