public void ParseObjectDefCommand()
{
Parser parser = new Parser("def a.foo\na=1\nend");
var expected = new DefExpression(new DotExpression(new NameExpression("a"), "foo", new IExpression[0]), new string[] { }, new AssignExpression("a", new ConstantExpression(1)));
var result = parser.ParseCommand();
Assert.IsNotNull(result);
Assert.AreEqual(expected, result);
Assert.IsNull(parser.ParseCommand());
}
public void ParseSelfDefCommandUsingDoubleColon()
{
Parser parser = new Parser("def self::foo\na=1\nend");
var expected = new DefExpression(new DoubleColonExpression(new SelfExpression(), "foo"), new string[] { }, new AssignExpression("a", new ConstantExpression(1)));
var result = parser.ParseCommand();
Assert.IsNotNull(result);
Assert.AreEqual(expected, result);
Assert.IsNull(parser.ParseCommand());
}
public void ParseDefCommandWithParametersInParentheses()
{
Parser parser = new Parser("def foo(a, b)\na+b\nend");
var expected = new DefExpression(new NameExpression("foo"), new string[] { "a", "b" }, new AddExpression(new NameExpression("a"), new NameExpression("b")));
var result = parser.ParseCommand();
Assert.IsNotNull(result);
Assert.AreEqual(expected, result);
Assert.IsNull(parser.ParseCommand());
}
public void DefineSimpleFunction()
{
Machine machine = new Machine();
Context context = machine.RootContext;
DefExpression expr = new DefExpression(new NameExpression("foo"), new string[0], new CallExpression("puts", new IExpression[] { new ConstantExpression(123) }));
var result = expr.Evaluate(context);
Assert.IsNull(result);
var value = context.Self.Class.GetInstanceMethod("foo");
Assert.IsNotNull(value);
Assert.IsInstanceOfType(value, typeof(DefinedFunction));
}
public void EqualsWithParameters()
{
DefExpression expr1 = new DefExpression(new NameExpression("foo"), new string[] { "c" }, new ConstantExpression(1));
DefExpression expr2 = new DefExpression(new NameExpression("foo"), new string[] { "a" }, new ConstantExpression(1));
DefExpression expr3 = new DefExpression(new NameExpression("foo"), new string[] { "a", "b" }, new ConstantExpression(1));
DefExpression expr4 = new DefExpression(new NameExpression("foo"), new string[] { "c" }, new ConstantExpression(1));
Assert.IsTrue(expr1.Equals(expr4));
Assert.IsTrue(expr4.Equals(expr1));
Assert.AreEqual(expr1.GetHashCode(), expr4.GetHashCode());
Assert.IsFalse(expr1.Equals(null));
Assert.IsFalse(expr1.Equals(123));
Assert.IsFalse(expr1.Equals(expr2));
Assert.IsFalse(expr2.Equals(expr1));
Assert.IsFalse(expr1.Equals(expr3));
Assert.IsFalse(expr3.Equals(expr1));
}
public void DefineFunction()
{
Machine machine = new Machine();
Context context = machine.RootContext;
DynamicObject obj = new DynamicObject((DynamicClass)context.GetLocalValue("Object"));
context.SetLocalValue("a", obj);
DefExpression expr = new DefExpression(new DotExpression(new NameExpression("a"), "foo", new IExpression[0]), new string[0], new CallExpression("puts", new IExpression[] { new ConstantExpression(123) }));
var result = expr.Evaluate(context);
Assert.IsNull(result);
var value = obj.SingletonClass.GetInstanceMethod("foo");
Assert.IsNotNull(value);
Assert.IsInstanceOfType(value, typeof(DefinedFunction));
Assert.IsNull(obj.Class.GetInstanceMethod("foo"));
}
public void GetLocalVariables()
{
DefExpression expr = new DefExpression(new NameExpression("foo"), new string[0], new CallExpression("puts", new IExpression[] { new ConstantExpression(123) }));
Assert.IsNull(expr.GetLocalVariables());
}
