public IType checkAttribute(Context context, CategoryDeclaration decl, String name)
{
if (decl.Storable && "dbId" == name)
{
return(AnyType.Instance);
}
else if (decl.hasAttribute(context, name))
{
AttributeDeclaration ad = context.getRegisteredDeclaration <AttributeDeclaration>(name);
if (ad == null)
{
throw new SyntaxError("Unknown atttribute:" + name);
}
else
{
return(ad.GetIType(context));
}
}
else if ("text" == name)
{
return(TextType.Instance);
}
else if (decl.hasMethod(context, name))
{
IMethodDeclaration method = decl.getMemberMethods(context, name).GetFirst();
return(new MethodType(method));
}
else
{
throw new SyntaxError("No attribute:" + name + " in category:" + GetTypeName());
}
}
public override IValue interpretReference(Context context)
{
// resolve parent to keep clarity
IExpression parent = resolveParent(context);
IValue instance = parent.interpret(context);
if (instance == null || instance == NullValue.Instance)
{
throw new NullReferenceError();
}
else if (instance is IInstance)
{
CategoryDeclaration category = ((IInstance)instance).getDeclaration();
MethodDeclarationMap methods = category.getMemberMethods(context, name);
IMethodDeclaration method = methods.GetFirst(); // TODO check prototype
return(new ClosureValue(context.newInstanceContext((IInstance)instance, true), new MethodType(method)));
}
else
{
throw new SyntaxError("Should never get here!");
}
}