-- --
-- S p e c --
-- --
--- Copyright (C) 1992-2011, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2012, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- declaration, the associated_node_for_itype is the discriminant
-- specification. For an access parameter it is the enclosing subprogram
-- declaration.
+--
+-- Itypes have no explicit declaration, and therefore are not attached to
+-- the tree: their Parent field is always empty. The Associated_Node_For_
+-- Itype is the only way to determine the construct that leads to the
+-- creation of a given itype entity.
-- Associated_Storage_Pool (Node22) [root type only]
-- Present in simple and general access type entities. References the
-- default expressions (see Freeze.Process_Default_Expressions), which
-- would not only waste time, but also generate false error messages.
+-- Default_Aspect_Value (Node19)
+-- Present in scalar types. Holds the static value specified in a
+-- default_value aspect specification for the type.
+
+-- Default_Aspect_Component_Value (Node19)
+-- Present in array types. Holds the static value specified in a
+-- default_component_value aspect specification for the array type.
+
-- Default_Value (Node20)
-- Present in formal parameters. Points to the node representing the
-- expression for the default value for the parameter. Empty if the
-- Present in access types. This field points to the type that is
-- directly designated by the access type. In the case of an access
-- type to an incomplete type, this field references the incomplete
--- type. Note that in the semantic processing, what is useful in
--- nearly all cases is the full type designated by the access type.
--- The function Designated_Type obtains this full type in the case of
--- access to an incomplete type.
+-- type. Directly_Designated_Type is typically used in implementing the
+-- static semantics of the language; in implementing dynamic semantics,
+-- we typically want the full view of the designated type. The function
+-- Designated_Type obtains this full type in the case of access to an
+-- incomplete type.
-- Discard_Names (Flag88)
-- Present in types and exception entities. Set if pragma Discard_Names
-- or entry. Returns Empty if there are no extra formals.
-- Extra_Accessibility (Node13)
--- Present in formal parameters in the non-generic case if expansion is
--- active. Normally Empty, but if a parameter is one for which a dynamic
--- accessibility check is required, then an extra formal of type
+-- Present in formal parameters in the non-generic case. Normally Empty,
+-- but if expansion is active, and a parameter is one for which a
+-- dynamic accessibility check is required, then an extra formal of type
-- Natural is created (see description of field Extra_Formal), and the
-- Extra_Accessibility field of the formal parameter points to the entity
-- for this extra formal. Also present in variables when compiling
-- must be retrieved through the entity designed by this field instead of
-- being computed.
+-- Extra_Accessibility_Of_Result (Node19)
+-- Present in (non-generic) Function, Operator, and Subprogram_Type
+-- entities. Normally Empty, but if expansion is active, and a function
+-- is one for which "the accessibility level of the result ... determined
+-- by the point of call" (AI05-0234) is needed, then an extra formal of
+-- subtype Natural is created (see description of field Extra_Formal),
+-- and the Extra_Accessibility_Of_Result field of the function points to
+-- the entity for this extra formal.
+
-- Extra_Constrained (Node23)
--- Present in formal parameters in the non-generic case if expansion is
--- active. Normally Empty, but if a parameter is one for which a dynamic
+-- Present in formal parameters in the non-generic case. Normally Empty,
+-- but if expansion is active and a parameter is one for which a dynamic
-- indication of its constrained status is required, then an extra formal
-- of type Boolean is created (see description of field Extra_Formal),
-- and the Extra_Constrained field of the formal parameter points to the
-- type has no discriminants and the full view has discriminants with
-- defaults. In Ada 2005 heap-allocated objects of such types are not
-- constrained, and can change their discriminants with full assignment.
+-- Sem_Aux.Effectively_Has_Constrained_Partial_View should be always
+-- used by callers, rather than reading this attribute directly because,
+-- according to RM 3.10.2 (27/2), untagged generic formal private types
+-- and subtypes are also considered to have a constrained partial view
+-- [when in a generic body].
-- Has_Contiguous_Rep (Flag181)
-- Present in enumeration types. True if the type as a representation
-- Is_Generic_Type (Flag13)
-- Present in all entities. Set for types which are generic formal types.
-- Such types have an Ekind that corresponds to their classification, so
--- the Ekind cannot be used to identify generic types.
+-- the Ekind cannot be used to identify generic formal types.
-- Is_Generic_Unit (synthesized)
-- Applies to all entities. Yields True for a generic unit (generic
-- Present in all entities. Set if entity is immediately visible, i.e.
-- is defined in some currently open scope (RM 8.3(4)).
+-- Is_Implementation_Defined (Flag254)
+-- Present in all entities. Set if a pragma Implementation_Defined is
+-- applied to the pragma. Used to mark all implementation defined
+-- identifiers in standard library packages, and to implement the
+-- restriction No_Implementation_Identifiers.
+
-- Is_Imported (Flag24)
-- Present in all entities. Set if the entity is imported. For now we
-- only allow the import of exceptions, functions, procedures, packages.
-- Is_Local_Anonymous_Access (Flag194)
-- Present in access types. Set for an anonymous access type to indicate
-- that the type is created for a record component with an access
--- definition, an array component, or (pre-Ada2012) a stand-alone object.
+-- definition, an array component, or (pre-Ada 2012) a standalone object.
-- Such anonymous types have an accessibility level equal to that of the
-- declaration in which they appear, unlike the anonymous access types
-- that are created for access parameters, access discriminants, and
--- (as of Ada2012) stand-alone objects.
+-- (as of Ada 2012) stand-alone objects.
-- Is_Machine_Code_Subprogram (Flag137)
-- Present in subprogram entities. Set to indicate that the subprogram
-- Present in all entities. Set in E_Package and E_Generic_Package
-- entities to which a pragma Remote_Types is applied, and also on
-- entities declared in the visible part of the spec of such a package.
+-- Also set for types which are generic formal types to which the
+-- pragma Remote_Access_Type applies.
-- Is_Renaming_Of_Object (Flag112)
-- Present in all entities, set only for a variable or constant for
-- visible by selected notation, or not.
-- Is_Visible_Formal (Flag206)
--- Present in all entities. Set for instances of the formals of a formal
--- package. Indicates that the entity must be made visible in the body
--- of the instance, to reproduce the visibility of the generic. This
--- simplifies visibility settings in instance bodies.
--- ??? confusion in above comments between being present and being set
+-- Present in all entities. Set True for instances of the formals of a
+-- formal package. Indicates that the entity must be made visible in the
+-- body of the instance, to reproduce the visibility of the generic.
+-- This simplifies visibility settings in instance bodies.
-- Is_VMS_Exception (Flag133)
-- Present in all entities. Set only for exception entities where the
-- register call to make appropriate entries in the special tables
-- used for handling these pragmas at runtime.
--- Related_Array_Object (Node19)
+-- Related_Array_Object (Node25)
-- Present in array types and subtypes. Used only for the base type
-- and subtype created for an anonymous array object. Set to point
-- to the entity of the corresponding array object. Currently used
-- Is_Hidden (Flag57)
-- Is_Hidden_Open_Scope (Flag171)
-- Is_Immediately_Visible (Flag7)
+ -- Is_Implementation_Defined (Flag254)
-- Is_Imported (Flag24)
-- Is_Inlined (Flag11)
-- Is_Internal (Flag17)
-- E_Array_Type
-- E_Array_Subtype
-- First_Index (Node17)
- -- Related_Array_Object (Node19)
+ -- Default_Aspect_Component_Value (Node19)
-- Component_Type (Node20) (base type only)
-- Original_Array_Type (Node21)
-- Component_Size (Uint22) (base type only)
-- Packed_Array_Type (Node23)
+ -- Related_Array_Object (Node25)
-- Component_Alignment (special) (base type only)
-- Has_Component_Size_Clause (Flag68) (base type only)
-- Has_Pragma_Pack (Flag121) (impl base type only)
-- Lit_Indexes (Node15) (root type only)
-- Lit_Strings (Node16) (root type only)
-- First_Literal (Node17)
+ -- Default_Aspect_Value (Node19)
-- Scalar_Range (Node20)
-- Enum_Pos_To_Rep (Node23) (type only)
-- Static_Predicate (List25)
-- E_Floating_Point_Subtype
-- Digits_Value (Uint17)
-- Float_Rep (Uint10) (Float_Rep_Kind)
+ -- Default_Aspect_Value (Node19)
-- Scalar_Range (Node20)
-- Machine_Emax_Value (synth)
-- Machine_Emin_Value (synth)
-- First_Entity (Node17)
-- Alias (Node18) (non-generic case only)
-- Renamed_Entity (Node18) (generic case only)
+ -- Extra_Accessibility_Of_Result (Node19) (non-generic case only)
-- Last_Entity (Node20)
-- Interface_Name (Node21)
-- Scope_Depth_Value (Uint22)
-- E_Modular_Integer_Type
-- E_Modular_Integer_Subtype
-- Modulus (Uint17) (base type only)
+ -- Default_Aspect_Value (Node19)
-- Original_Array_Type (Node21)
-- Scalar_Range (Node20)
-- Static_Predicate (List25)
-- E_Operator
-- First_Entity (Node17)
-- Alias (Node18)
+ -- Extra_Accessibility_Of_Result (Node19)
-- Last_Entity (Node20)
-- Overridden_Operation (Node26)
-- Subprograms_For_Type (Node29)
-- E_Ordinary_Fixed_Point_Type
-- E_Ordinary_Fixed_Point_Subtype
-- Delta_Value (Ureal18)
+ -- Default_Aspect_Value (Node19)
-- Scalar_Range (Node20)
-- Small_Value (Ureal21)
-- Has_Small_Clause (Flag67)
-- E_Signed_Integer_Type
-- E_Signed_Integer_Subtype
+ -- Default_Aspect_Value (Node19)
-- Scalar_Range (Node20)
-- Static_Predicate (List25)
-- Has_Biased_Representation (Flag139)
-- Scope_Depth (synth)
-- E_Subprogram_Type
+ -- Extra_Accessibility_Of_Result (Node19)
-- Directly_Designated_Type (Node20)
-- Extra_Formals (Node28)
-- First_Formal (synth)
function DT_Position (Id : E) return U;
function Default_Expr_Function (Id : E) return E;
function Default_Expressions_Processed (Id : E) return B;
+ function Default_Aspect_Value (Id : E) return N;
+ function Default_Aspect_Component_Value (Id : E) return N;
function Default_Value (Id : E) return N;
function Delay_Cleanups (Id : E) return B;
function Delay_Subprogram_Descriptors (Id : E) return B;
function Esize (Id : E) return U;
function Exception_Code (Id : E) return U;
function Extra_Accessibility (Id : E) return E;
+ function Extra_Accessibility_Of_Result (Id : E) return E;
function Extra_Constrained (Id : E) return E;
function Extra_Formal (Id : E) return E;
function Extra_Formals (Id : E) return E;
function Is_Hidden (Id : E) return B;
function Is_Hidden_Open_Scope (Id : E) return B;
function Is_Immediately_Visible (Id : E) return B;
+ function Is_Implementation_Defined (Id : E) return B;
function Is_Imported (Id : E) return B;
function Is_Inlined (Id : E) return B;
function Is_Interface (Id : E) return B;
procedure Set_DT_Position (Id : E; V : U);
procedure Set_Default_Expr_Function (Id : E; V : E);
procedure Set_Default_Expressions_Processed (Id : E; V : B := True);
+ procedure Set_Default_Aspect_Value (Id : E; V : N);
+ procedure Set_Default_Aspect_Component_Value (Id : E; V : N);
procedure Set_Default_Value (Id : E; V : N);
procedure Set_Delay_Cleanups (Id : E; V : B := True);
procedure Set_Delay_Subprogram_Descriptors (Id : E; V : B := True);
procedure Set_Esize (Id : E; V : U);
procedure Set_Exception_Code (Id : E; V : U);
procedure Set_Extra_Accessibility (Id : E; V : E);
+ procedure Set_Extra_Accessibility_Of_Result (Id : E; V : E);
procedure Set_Extra_Constrained (Id : E; V : E);
procedure Set_Extra_Formal (Id : E; V : E);
procedure Set_Extra_Formals (Id : E; V : E);
procedure Set_Is_Hidden (Id : E; V : B := True);
procedure Set_Is_Hidden_Open_Scope (Id : E; V : B := True);
procedure Set_Is_Immediately_Visible (Id : E; V : B := True);
+ procedure Set_Is_Implementation_Defined (Id : E; V : B := True);
procedure Set_Is_Imported (Id : E; V : B := True);
procedure Set_Is_Inlined (Id : E; V : B := True);
procedure Set_Is_Interface (Id : E; V : B := True);
pragma Inline (Default_Expr_Function);
pragma Inline (Default_Expressions_Processed);
pragma Inline (Default_Value);
+ pragma Inline (Default_Aspect_Value);
+ pragma Inline (Default_Aspect_Component_Value);
pragma Inline (Delay_Cleanups);
pragma Inline (Delay_Subprogram_Descriptors);
pragma Inline (Delta_Value);
pragma Inline (Esize);
pragma Inline (Exception_Code);
pragma Inline (Extra_Accessibility);
+ pragma Inline (Extra_Accessibility_Of_Result);
pragma Inline (Extra_Constrained);
pragma Inline (Extra_Formal);
pragma Inline (Extra_Formals);
pragma Inline (Is_Hidden);
pragma Inline (Is_Hidden_Open_Scope);
pragma Inline (Is_Immediately_Visible);
+ pragma Inline (Is_Implementation_Defined);
pragma Inline (Is_Imported);
pragma Inline (Is_Incomplete_Or_Private_Type);
pragma Inline (Is_Incomplete_Type);
pragma Inline (Set_Esize);
pragma Inline (Set_Exception_Code);
pragma Inline (Set_Extra_Accessibility);
+ pragma Inline (Set_Extra_Accessibility_Of_Result);
pragma Inline (Set_Extra_Constrained);
pragma Inline (Set_Extra_Formal);
pragma Inline (Set_Extra_Formals);
pragma Inline (Set_Is_Hidden);
pragma Inline (Set_Is_Hidden_Open_Scope);
pragma Inline (Set_Is_Immediately_Visible);
+ pragma Inline (Set_Is_Implementation_Defined);
pragma Inline (Set_Is_Imported);
pragma Inline (Set_Is_Inlined);
pragma Inline (Set_Is_Interface);
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