public void CreateNameExpression()
{
var expr = new NameExpression("a");
Assert.AreEqual("a", expr.Name);
Assert.IsNull(expr.Type);
}
public void MatchBoundNameExpression()
{
var expr = new NameExpression("a");
var ctx = new Context<IExpression>();
ctx.SetValue("a", new IntegerExpression(42));
Assert.IsTrue(expr.Match(new IntegerExpression(42), ctx));
Assert.IsFalse(expr.Match(new IntegerExpression(1), ctx));
}
public void MatchUnboundNameExpression()
{
var expr = new NameExpression("a");
var ctx = new Context<IExpression>();
var cexpr = new IntegerExpression(42);
Assert.IsTrue(expr.Match(cexpr, ctx));
Assert.AreSame(cexpr, ctx.GetValue("a"));
}
