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9dfd2ff8dc
2005-09-01 Cyrille Comar <comar@adacore.com>
Gary Dismukes <dismukes@adacore.com>
Ed Schonberg <schonberg@adacore.com>
Javier Miranda <miranda@adacore.com>
* sem_ch3.ads, sem_ch3.adb (Analyze_Object_Declaration): Go to the
underlying type
to check if a type is Constrained in cases related to code generation
(rather than semantic checking) since otherwise we do not generate
similar code for mutable private types depending if their
discriminants are visible or not.
(Check_Abstract_Overriding): Do not complain about failure to override
the primitive operations used in dispatching selects since they will
always be overriden at the freeze point of the type.
(Access_Definition): Separate out handling for resetting the scope
of an anonymous access function result type. Retrieve the scope
of the associated function rather than using Current_Scope, which
does not have a consistent value (depends on whether we're in the
middle of analyzing formal parameters). Add ??? comment about
finding a cleaner way to handle the special cases of scope setting.
(Process_Incomplete_Dependents): A protected operation is never a
dispatching operation (only its wrapper may be).
(Build_Derived_Record_Type): In case of tagged private types that
implement interfaces add derivation of predefined primitive
operations.
(Derive_Subprograms): Replace the Is_Interface_Derivation parameter
by two parameters that are used in case of derivation from abstract
interface types: No_Predefined_Prims is used to avoid the derivation
of predefined primitives from the interface, and Predefined
Prims_Only is used to complete the derivation predefined primitives
in case of private tagged types implementing interfaces.
Fix typo in comments
(Find_Interface_In_Descendant): Protect the frontend against
wrong code with large circularity chains.
(Is_Private_Overriding): Add support for entities overriding interface
subprograms. The test failed because Entities associated with overriden
interface subprograms are always marked as hidden (and used to build
the secondary dispatch table); in this case the overriden entity is
available through the field abstract_interface_alias (cf. override_
dispatching_operation)
(Access_Definition): Set the scope of the type to Current_Scope for the
case of a function with an anonymous access result type.
(Access_Subprogram_Declaration): Handle creation of the type entity for
an access-to-function type with an anonymous access result.
(Check_Anonymous_Access_Types): Change Subtype_Mark to Result_Definition
in handling for N_Access_Function_Definition.
(Analyze_Subtype_Declaration): Modify the text of error message.
(Derived_Type_Declaration): Modify the text of error message.
(Process_Subtype): Modify the text of error message plus cleanup
of one redundant error message.
(Analyze_Component_Declaration): Code cleanup.
(Analyze_Object_Declaration): Code cleanup.
(Analyze_Subtype_Declaration): Propagate the null-exclusion
attribute in case of access types. Code cleanup.
(Array_Type_Declaration): Code cleanup.
(Process_Discriminants): Create the new null-excluding itype
if required. Code cleanup.
(Process_Subtype): Create the new null-excluding itype if
required. Code cleanup.
(Build_Derived_Record_Type): Code cleanup to avoid calling
twice the subprogram derive_subprograms in case of private
types that implement interfaces. In this particular case the
subprogram Complete_Subprograms_Derivation already does the
job associated with the second call.
* exp_strm.adb (Build_Elementary_Input_Call): Add an explicit
conversion to the full view when generating an operation for a
discriminant whose type may currently be private.
From-SVN: r103881
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