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
