18.05.12 5:32, Joost van der Sluis wrote:
Now I'm wondering if I should make this new field of Tpropertysym a TDef or a TSym(table). I know that Tsym can store itself to a ppu while a TDef does not. But There was something else, too. But I don't remember exactly.
TSym is about symbol and TDef is about definition. Each symbol is just an identifier which compiler founds during parse which may have > 1 definitions (overloaded functions for example). A definition does not have a name (generally) but instead have information how to work with it. It may refer to no symbol at all. Both are stored in a TSymTable and ppu (look at TStoredDef).
A property does not have a definition of itself - only a symbol and list of fields/procedures for read,write,stored.
So two questions: how should I extend the Tpropertysym for the extended attributes, and what is the dfference/use of Tdef and Tsym.
Does any symbol in delphi may have this information? If property has this information and you created a descendant property - will it have the same attributes as an ancestor property?
For now if only property may have this information then choose TPropertySym for storing it.
Best regards, Paul Ishenin _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel
