public Evaluate ( Context context ) : object | ||
context | Context | |
Résultat | object |
public void DefineAndEvaluateFunction() { FunctionForm form = new FunctionForm("add", new IExpression[] { new VariableExpression(new Variable("X")), new VariableExpression(new Variable("Y")) }, new AddExpression(new VariableExpression(new Variable("X")), new VariableExpression(new Variable("Y")))); Context context = new Context(); var result = form.Evaluate(context); Assert.IsNotNull(result); Assert.IsInstanceOfType(result, typeof(Function)); var func = (Function)result; Assert.AreSame(func, context.GetValue("add/2")); var newcontext = func.MakeContext(new object[] { 1, 2 }); Assert.IsNotNull(newcontext); Assert.AreEqual(1, newcontext.GetValue("X")); Assert.AreEqual(2, newcontext.GetValue("Y")); Assert.AreSame(func, newcontext.GetValue("add/2")); Assert.AreEqual(3, func.Evaluate(newcontext)); }