private void TestUnary(UnaryOperationKind kind)
{
string text;
if (Operation.IsPrefixOperation(kind))
{
text = Operation.GetText(kind) + "$a";
}
else
{
text = "$a" + Operation.GetText(kind);
}
var expr = NSScript.ParseExpression(text) as UnaryExpression;
Assert.NotNull(expr);
Assert.Equal(SyntaxNodeKind.UnaryExpression, expr.Kind);
Assert.Equal(kind, expr.OperationKind);
var operand = expr.Operand as Variable;
Assert.NotNull(operand);
Assert.Equal("$a", operand.Name.FullName);
Assert.Equal(text, expr.ToString());
}
public void TestConstant()
{
string text = "center";
var constant = NSScript.ParseExpression(text) as NamedConstant;
Assert.NotNull(constant);
Assert.Equal(SyntaxNodeKind.NamedConstant, constant.Kind);
Assert.Equal(text, constant.Name.FullName);
Assert.Equal(text, constant.ToString());
}
public void TestVariableReference()
{
string text = "SomeMethod($a);";
var invocation = NSScript.ParseExpression(text) as MethodCall;
var arg = invocation.Arguments[0] as Variable;
Assert.NotNull(arg);
Assert.Equal(SyntaxNodeKind.Variable, arg.Kind);
}
public void TestNumericLiteralExpression()
{
string literal = "42";
var expr = NSScript.ParseExpression(literal) as Literal;
Assert.NotNull(expr);
Assert.Equal(SyntaxNodeKind.Literal, expr.Kind);
Assert.Equal(literal, expr.Text);
Assert.Equal(42, expr.Value.RawValue);
Assert.Equal(literal, expr.ToString());
}
public void TestVariableWithHashSigil()
{
string text = "#testVar";
var variable = NSScript.ParseExpression(text) as Variable;
Assert.NotNull(variable);
Assert.Equal(SyntaxNodeKind.Variable, variable.Kind);
Assert.Equal(text, variable.Name.FullName);
Assert.Equal("testVar", variable.Name.SimplifiedName);
Assert.Equal(SigilKind.Hash, variable.Name.Sigil);
Assert.Equal(text, variable.ToString());
}
public void TestMethodCall()
{
string text = "WaitKey(10000);";
var call = NSScript.ParseExpression(text) as MethodCall;
Assert.NotNull(call);
Assert.Equal(SyntaxNodeKind.MethodCall, call.Kind);
Assert.Equal("WaitKey", call.TargetMethodName.FullName);
Assert.Equal(call.TargetMethodName.FullName, call.TargetMethodName.SimplifiedName);
Assert.Equal(SigilKind.None, call.TargetMethodName.Sigil);
Assert.Equal(1, call.Arguments.Length);
Assert.Equal(text, call.ToString());
}
private void TestAssignment(AssignmentOperationKind kind)
{
string text = "$a " + Operation.GetText(kind) + " 42";
var expr = NSScript.ParseExpression(text) as AssignmentExpression;
Assert.NotNull(expr);
Assert.Equal(SyntaxNodeKind.AssignmentExpression, expr.Kind);
Assert.Equal(kind, expr.OperationKind);
var target = expr.Target as Variable;
Assert.NotNull(target);
Assert.Equal("$a", target.Name.FullName);
var value = expr.Value as Literal;
Assert.NotNull(value);
Assert.Equal(42, value.Value.RawValue);
}
private void TestBinary(BinaryOperationKind kind)
{
string text = "$a " + Operation.GetText(kind) + " $b";
var expr = NSScript.ParseExpression(text) as BinaryExpression;
Assert.NotNull(expr);
Assert.Equal(SyntaxNodeKind.BinaryExpression, expr.Kind);
Assert.Equal(kind, expr.OperationKind);
var left = expr.Left as Variable;
Assert.NotNull(left);
Assert.Equal("$a", left.Name.FullName);
var right = expr.Right as Variable;
Assert.NotNull(right);
Assert.Equal("$b", right.Name.FullName);
Assert.Equal(text, expr.ToString());
}