einfo.ads, einfo.adb (First_Tag_Component): Protect the frontend against errors in the source program...
2006-02-13 Javier Miranda <miranda@adacore.com>
Robert Dewar <dewar@adacore.com>
Ed Schonberg <schonberg@adacore.com>
* einfo.ads, einfo.adb (First_Tag_Component): Protect the frontend
against errors in the source program: a private types for which the
corresponding full type declaration is missing and pragma CPP_Virtual
is used.
(Is_Unchecked_Union): Check flag on Implementation_Base_Type.
(Is_Known_Null): New flag
(Has_Pragma_Pure): New flag
(No_Return): Present in all entities, set only for procedures
(Is_Limited_Type): A type whose ancestor is an interface is limited if
explicitly declared limited.
(DT_Offset_To_Top_Func): New attribute that is present in E_Component
entities. Only used for component marked Is_Tag. If present it stores
the Offset_To_Top function used to provide this value in tagged types
whose ancestor has discriminants.
* exp_ch2.adb: Update status of new Is_Known_Null flag
* sem_ch7.adb: Maintain status of new Is_Known_Null flag
* sem_cat.adb (Get_Categorization): Don't treat function as Pure in
the categorization sense if Is_Pure was set by pragma Pure_Function.
From-SVN: r111055