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2008-05-26 Javier Miranda <miranda@adacore.com> * einfo.ads (Abstract_Interface_Alias): Renamed as Interface_Alias. (Set_Abstract_Interface_Alias): Renamed as Set_Interface_Alias. (Is_Internal): Adding documentation on internal entities that have attribute Interface_Alias (old attribute Abstract_Interface_Alias) * einfo.adb (Abstract_Interface_Alias): Renamed as Interface_Alias. (Set_Abstract_Interface_Alias): Renamed as Set_Interface_Alias. Added assertion to force entities with this attribute to have attribute Is_Internal set to True. (Next_Tag_Component): Simplify assertion using attribute Is_Tag. * sem_ch3.adb (Derive_Interface_Subprograms): This subprogram has been renamed as Derive_Progenitor_Subprograms. In addition, its code is a new implementation. (Add_Interface_Tag_Components): Remove special management of synchronized interfaces. (Analyze_Interface_Declaration): Minor reformating (Build_Derived_Record_Type): Minor reformating (Check_Abstract_Overriding): Avoid reporting error in case of abstract predefined primitive inherited from interface type because the body of internally generated predefined primitives of tagged types are generated later by Freeze_Type (Derive_Subprogram): Avoid generating an internal name if the parent subprogram overrides an interface primitive. (Derive_Subprograms): New implementation that keeps separate the management of tagged types not implementing interfaces, from tagged types that implement interfaces. (Is_Progenitor): New implementation. (Process_Full_View): Add documentation (Record_Type_Declaration): Replace call to Derive_Interface_Subprograms by call to Derive_Progenitor_Subprograms. * sem_ch6.ads (Is_Interface_Conformant): New subprogram. (Check_Subtype_Conformant, Subtype_Conformant): Adding new argument Skip_Controlling_Formals. * sem_ch6.adb (Is_Interface_Conformant): New subprogram. (Check_Conventions): New implementation. Remove local subprogram Skip_Check. Remove formal Search_From of routine Check_Convention. (Check_Subtype_Conformant, Subtype_Conformant): Adding new argument Skip_Controlling_Formals. (New_Overloaded_Entity): Enable addition of predefined dispatching operations. * sem_disp.ads (Find_Primitive_Covering_Interface): New subprogram. * sem_disp.adb (Check_Dispatching_Operation): Disable registering the task body procedure as a primitive of the corresponding tagged type. (Check_Operation_From_Private_Type): Avoid adding twice an entity to the list of primitives. (Find_Primitive_Covering_Interface): New subprogram. (Override_Dispatching_Operation): Add documentation. * sem_type.adb (Covers): Minor reformatings * sem_util.ads (Collect_Abstract_Interfaces): Renamed as Collect_Interfaces. Rename formal. (Has_Abstract_Interfaces): Renamed as Has_Interfaces. (Implements_Interface): New subprogram. (Is_Parent): Removed. (Primitive_Names_Match): New subprogram. (Remove_Homonym): Moved here from Derive_Interface_Subprograms. (Ultimate_Alias): New subprogram. * sem_util.adb (Collect_Abstract_Interfaces): Renamed as Collect_Interfaces. Remove special management for synchronized types. Rename formal. Remove internal subprograms Interface_Present_In_Parent and Add_Interface. (Has_Abstract_Interfaces): Renamed as Has_Interfaces. Replace assertion on non-record types by code to return false in such case. (Implements_Interface): New subprogram. (Is_Parent): Removed. No special management is now required for synchronized types covering interfaces. (Primitive_Names_Match): New subprogram. (Remove_Homonym): Moved here from Derive_Interface_Subprograms. (Ultimate_Alias): New subprogram. * exp_ch3.adb (Add_Internal_Interface_Entities): New subprogram. Add internal entities associated with secondary dispatch tables to the list of tagged type primitives that are not interfaces. (Freeze_Record_Type): Add new call to Add_Internal_Interface_Entities (Make_Predefined_Primitive_Specs): Code reorganization to improve the management of predefined equality operator. In addition, if the type has an equality function corresponding with a primitive defined in an interface type, the inherited equality is abstract as well, and no body can be created for it. * exp_disp.ads (Is_Predefined_Dispatching_Operation): Moved from exp_util to exp_disp. (Is_Predefined_Interface_Primitive): New subprogram. Returns True if an entity corresponds with one of the predefined primitives required to implement interfaces. Update copyright notice. * exp_disp.adb (Set_All_DT_Position): Add assertion. Exclude from the final check on abstract subprograms all the primitives associated with interface primitives because they must be visible in the public and private part. (Write_DT): Use Find_Dispatching_Type to locate the name of the interface type. This allows the use of this routine, for debugging purposes, when the tagged type is not fully decorated. (Is_Predefined_Dispatching_Operation): Moved from exp_util to exp_disp. Factorize code calling new subprogram Is_Predefined_Interface_Primitive. (Is_Predefined_Interface_Primitive): New subprogram. Returns True if an entity corresponds with one of the predefined primitives required to implement interfaces. * exp_util.adb (Find_Interface_ADT): New implementation (Find_Interface): Removed. * sprint.adb (Sprint_Node_Actual): Generate missing output for the list of interfaces associated with nodes N_Formal_Derived_Type_Definition and N_Private_Extension_Declaration. From-SVN: r135923
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