-- --
-- B o d y --
-- --
--- Copyright (C) 1998-2003, Free Software Foundation, Inc. --
+-- Copyright (C) 1998-2007, 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- --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
with Elists; use Elists;
with Errout; use Errout;
with Lib.Util; use Lib.Util;
-with Namet; use Namet;
with Nlists; use Nlists;
with Opt; use Opt;
+with Restrict; use Restrict;
+with Rident; use Rident;
+with Sem; use Sem;
with Sem_Prag; use Sem_Prag;
+with Sem_Util; use Sem_Util;
+with Sem_Warn; use Sem_Warn;
with Sinfo; use Sinfo;
with Sinput; use Sinput;
with Snames; use Snames;
-- Definition must come from source
- and then Comes_From_Source (E)
+ -- We make an exception for subprogram child units that have no
+ -- spec. For these we generate a subprogram declaration for library
+ -- use, and the corresponding entity does not come from source.
+ -- Nevertheless, all references will be attached to it and we have
+ -- to treat is as coming from user code.
+
+ and then (Comes_From_Source (E) or else Is_Child_Unit (E))
-- And must have a reasonable source location that is not
-- within an instance (all entities in instances are ignored)
Loc := Original_Location (Sloc (E));
Xrefs.Table (Indx).Ent := E;
+ Xrefs.Table (Indx).Def := No_Location;
Xrefs.Table (Indx).Loc := No_Location;
+ Xrefs.Table (Indx).Typ := ' ';
Xrefs.Table (Indx).Eun := Get_Source_Unit (Loc);
Xrefs.Table (Indx).Lun := No_Unit;
Set_Has_Xref_Entry (E);
+
+ if In_Inlined_Body then
+ Set_Referenced (E);
+ end if;
end if;
end Generate_Definition;
Def : Source_Ptr;
Ent : Entity_Id;
+ function Is_On_LHS (Node : Node_Id) return Boolean;
+ -- Used to check if a node is on the left hand side of an assignment.
+ -- The following cases are handled:
+ --
+ -- Variable Node is a direct descendant of an assignment statement.
+ --
+ -- Prefix Of an indexed or selected component that is present in a
+ -- subtree rooted by an assignment statement. There is no
+ -- restriction of nesting of components, thus cases such as
+ -- A.B(C).D are handled properly.
+
+ ---------------
+ -- Is_On_LHS --
+ ---------------
+
+ -- Couldn't we use Is_Lvalue or whatever it is called ???
+
+ function Is_On_LHS (Node : Node_Id) return Boolean is
+ N : Node_Id := Node;
+
+ begin
+ -- Only identifiers are considered, is this necessary???
+
+ if Nkind (N) /= N_Identifier then
+ return False;
+ end if;
+
+ -- Reach the assignment statement subtree root. In the case of a
+ -- variable being a direct descendant of an assignment statement,
+ -- the loop is skiped.
+
+ while Nkind (Parent (N)) /= N_Assignment_Statement loop
+
+ -- Check whether the parent is a component and the
+ -- current node is its prefix.
+
+ if (Nkind (Parent (N)) = N_Selected_Component
+ or else
+ Nkind (Parent (N)) = N_Indexed_Component)
+ and then Prefix (Parent (N)) = N
+ then
+ N := Parent (N);
+ else
+ return False;
+ end if;
+ end loop;
+
+ -- Parent (N) is assignment statement, check whether N is its name
+
+ return Name (Parent (N)) = N;
+ end Is_On_LHS;
+
+ -- Start of processing for Generate_Reference
+
begin
pragma Assert (Nkind (E) in N_Entity);
- -- Never collect references if not in main source unit. However,
- -- we omit this test if Typ is 'e' or 'k', since these entries are
- -- really structural, and it is useful to have them in units
- -- that reference packages as well as units that define packages.
- -- We also omit the test for the case of 'p' since we want to
- -- include inherited primitive operations from other packages.
-
- if not In_Extended_Main_Source_Unit (N)
- and then Typ /= 'e'
- and then Typ /= 'p'
- and then Typ /= 'k'
+ -- Check for obsolescent reference to package ASCII. GNAT treats this
+ -- element of annex J specially since in practice, programs make a lot
+ -- of use of this feature, so we don't include it in the set of features
+ -- diagnosed when Warn_On_Obsolescent_Features mode is set. However we
+ -- are required to note it as a violation of the RM defined restriction.
+
+ if E = Standard_ASCII then
+ Check_Restriction (No_Obsolescent_Features, N);
+ end if;
+
+ -- Check for reference to entity marked with Is_Obsolescent
+
+ -- Note that we always allow obsolescent references in the compiler
+ -- itself and the run time, since we assume that we know what we are
+ -- doing in such cases. For example the calls in Ada.Characters.Handling
+ -- to its own obsolescent subprograms are just fine.
+
+ -- In any case we do not generate warnings within the extended source
+ -- unit of the entity in question, since we assume the source unit
+ -- itself knows what is going on (and for sure we do not want silly
+ -- warnings, e.g. on the end line of an obsolescent procedure body).
+
+ if Is_Obsolescent (E)
+ and then not GNAT_Mode
+ and then not In_Extended_Main_Source_Unit (E)
then
- return;
+ Check_Restriction (No_Obsolescent_Features, N);
+
+ if Warn_On_Obsolescent_Feature then
+ Output_Obsolescent_Entity_Warnings (N, E);
+ end if;
+ end if;
+
+ -- Warn if reference to Ada 2005 entity not in Ada 2005 mode. We only
+ -- detect real explicit references (modifications and references).
+
+ if Comes_From_Source (N)
+ and then Is_Ada_2005_Only (E)
+ and then Ada_Version < Ada_05
+ and then Warn_On_Ada_2005_Compatibility
+ and then (Typ = 'm' or else Typ = 'r')
+ then
+ Error_Msg_NE ("& is only defined in Ada 2005?", N, E);
+ end if;
+
+ -- Never collect references if not in main source unit. However, we omit
+ -- this test if Typ is 'e' or 'k', since these entries are structural,
+ -- and it is useful to have them in units that reference packages as
+ -- well as units that define packages. We also omit the test for the
+ -- case of 'p' since we want to include inherited primitive operations
+ -- from other packages.
+
+ -- We also omit this test is this is a body reference for a subprogram
+ -- instantiation. In this case the reference is to the generic body,
+ -- which clearly need not be in the main unit containing the instance.
+ -- For the same reason we accept an implicit reference generated for
+ -- a default in an instance.
+
+ if not In_Extended_Main_Source_Unit (N) then
+ if Typ = 'e'
+ or else Typ = 'p'
+ or else Typ = 'i'
+ or else Typ = 'k'
+ or else (Typ = 'b' and then Is_Generic_Instance (E))
+ then
+ null;
+ else
+ return;
+ end if;
end if;
-- For reference type p, the entity must be in main source unit
return;
end if;
- -- Unless the reference is forced, we ignore references where
- -- the reference itself does not come from Source.
+ -- Unless the reference is forced, we ignore references where the
+ -- reference itself does not come from Source.
if not Force and then not Comes_From_Source (N) then
return;
end if;
- -- Deal with setting entity as referenced, unless suppressed.
- -- Note that we still do Set_Referenced on entities that do not
- -- come from source. This situation arises when we have a source
- -- reference to a derived operation, where the derived operation
- -- itself does not come from source, but we still want to mark it
- -- as referenced, since we really are referencing an entity in the
- -- corresponding package (this avoids incorrect complaints that the
- -- package contains no referenced entities).
+ -- Deal with setting entity as referenced, unless suppressed. Note that
+ -- we still do Set_Referenced on entities that do not come from source.
+ -- This situation arises when we have a source reference to a derived
+ -- operation, where the derived operation itself does not come from
+ -- source, but we still want to mark it as referenced, since we really
+ -- are referencing an entity in the corresponding package (this avoids
+ -- wrong complaints that the package contains no referenced entities).
if Set_Ref then
- -- For a variable that appears on the left side of an
- -- assignment statement, we set the Referenced_As_LHS
- -- flag since this is indeed a left hand side.
+ -- For a variable that appears on the left side of an assignment
+ -- statement, we set the Referenced_As_LHS flag since this is indeed
+ -- a left hand side. We also set the Referenced_As_LHS flag of a
+ -- prefix of selected or indexed component.
if Ekind (E) = E_Variable
- and then Nkind (Parent (N)) = N_Assignment_Statement
- and then Name (Parent (N)) = N
- and then No (Renamed_Object (E))
+ and then Is_On_LHS (N)
then
Set_Referenced_As_LHS (E);
elsif Is_Non_Significant_Pragma_Reference (N) then
null;
- -- A reference in an attribute definition clause does not
- -- count as a reference except for the case of Address.
- -- The reason that 'Address is an exception is that it
- -- creates an alias through which the variable may be
- -- referenced.
+ -- A reference in an attribute definition clause does not count as a
+ -- reference except for the case of Address. The reason that 'Address
+ -- is an exception is that it creates an alias through which the
+ -- variable may be referenced.
elsif Nkind (Parent (N)) = N_Attribute_Definition_Clause
and then Chars (Parent (N)) /= Name_Address
then
null;
+ -- Constant completion does not count as a reference
+
+ elsif Typ = 'c'
+ and then Ekind (E) = E_Constant
+ then
+ null;
+
+ -- Record representation clause does not count as a reference
+
+ elsif Nkind (N) = N_Identifier
+ and then Nkind (Parent (N)) = N_Record_Representation_Clause
+ then
+ null;
+
+ -- Discriminants do not need to produce a reference to record type
+
+ elsif Typ = 'd'
+ and then Nkind (Parent (N)) = N_Discriminant_Specification
+ then
+ null;
+
-- Any other occurrence counts as referencing the entity
else
Set_Referenced (E);
- end if;
- -- Check for pragma Unreferenced given
+ if Ekind (E) = E_Variable then
+ Set_Last_Assignment (E, Empty);
+ end if;
+ end if;
- if Has_Pragma_Unreferenced (E) then
+ -- Check for pragma Unreferenced given and reference is within
+ -- this source unit (occasion for possible warning to be issued)
+ if Has_Pragma_Unreferenced (E)
+ and then In_Same_Extended_Unit (E, N)
+ then
-- A reference as a named parameter in a call does not count
-- as a violation of pragma Unreferenced for this purpose.
null;
-- Neither does a reference to a variable on the left side
- -- of an assignment
+ -- of an assignment.
- elsif Ekind (E) = E_Variable
- and then Nkind (Parent (N)) = N_Assignment_Statement
- and then Name (Parent (N)) = N
- then
+ elsif Is_On_LHS (N) then
null;
+ -- For entry formals, we want to place the warning message on the
+ -- corresponding entity in the accept statement. The current scope
+ -- is the body of the accept, so we find the formal whose name
+ -- matches that of the entry formal (there is no link between the
+ -- two entities, and the one in the accept statement is only used
+ -- for conformance checking).
+
+ elsif Ekind (Scope (E)) = E_Entry then
+ declare
+ BE : Entity_Id;
+
+ begin
+ BE := First_Entity (Current_Scope);
+ while Present (BE) loop
+ if Chars (BE) = Chars (E) then
+ Error_Msg_NE
+ ("?pragma Unreferenced given for&", N, BE);
+ exit;
+ end if;
+
+ Next_Entity (BE);
+ end loop;
+ end;
+
-- Here we issue the warning, since this is a real reference
else
and then Present (Alias (E))
then
Ent := Alias (E);
-
- loop
- if Comes_From_Source (Ent) then
- exit;
- elsif No (Alias (Ent)) then
+ while not Comes_From_Source (Ent) loop
+ if No (Alias (Ent)) then
return;
- else
- Ent := Alias (Ent);
end if;
+
+ Ent := Alias (Ent);
end loop;
+ -- The internally created defining entity for a child subprogram
+ -- that has no previous spec has valid references.
+
+ elsif Is_Overloadable (E)
+ and then Is_Child_Unit (E)
+ then
+ Ent := E;
+
-- Record components of discriminated subtypes or derived types
-- must be treated as references to the original component.
Xrefs.Table (Indx).Loc := Ref;
- -- Overriding operations are marked with 'P'.
+ -- Overriding operations are marked with 'P'
if Typ = 'p'
and then Is_Subprogram (N)
begin
Formal := First_Entity (E);
-
while Present (Formal) loop
if Comes_From_Source (Formal) then
Generate_Reference (E, Formal, 'z', False);
elsif Is_Private_Type (Tref)
and then Present (Full_View (Tref))
- and then Is_Access_Type (Full_View (Tref))
then
- Tref := Directly_Designated_Type (Full_View (Tref));
- Left := '(';
- Right := ')';
+ if Is_Access_Type (Full_View (Tref)) then
+ Tref := Directly_Designated_Type (Full_View (Tref));
+ Left := '(';
+ Right := ')';
+
+ -- If the full view is an array type, we also retrieve
+ -- the corresponding component type, because the ali
+ -- entry already indicates that this is an array.
+
+ elsif Is_Array_Type (Full_View (Tref)) then
+ Tref := Component_Type (Full_View (Tref));
+ Left := '(';
+ Right := ')';
+ end if;
- -- If non-derived array, get component type.
- -- Skip component type for case of String
- -- or Wide_String, saves worthwhile space.
+ -- If non-derived array, get component type. Skip component
+ -- type for case of String or Wide_String, saves worthwhile
+ -- space.
elsif Is_Array_Type (Tref)
and then Tref /= Standard_String
exit;
end if;
- -- For a subtype, go to ancestor subtype. If it is a
- -- subtype created for a generic actual, not clear yet
- -- what is the right type to use ???
+ -- For a subtype, go to ancestor subtype
else
Tref := Ancestor_Subtype (Tref);
if Sloc (Tref) = Standard_Location
or else Comes_From_Source (Tref)
then
+ -- If the reference is a subtype created for a generic
+ -- actual, go to actual directly, the inner subtype is
+ -- not user visible.
+
+ if Nkind (Parent (Tref)) = N_Subtype_Declaration
+ and then not Comes_From_Source (Parent (Tref))
+ and then
+ (Is_Wrapper_Package (Scope (Tref))
+ or else Is_Generic_Instance (Scope (Tref)))
+ then
+ Tref := First_Subtype (Base_Type (Tref));
+ end if;
+
return;
end if;
end loop;
procedure Output_Import_Export_Info (Ent : Entity_Id) is
Language_Name : Name_Id;
Conv : constant Convention_Id := Convention (Ent);
+
begin
+ -- Generate language name from convention
+
if Conv = Convention_C then
Language_Name := Name_C;
Language_Name := Name_Ada;
else
- -- These are the only languages that GPS knows about.
+ -- For the moment we ignore all other cases ???
return;
end if;
-- referenced in the main unit, which may mean that there is no xref
-- entry for this entity yet in the list of references.
- -- If we don't do something about this, we will end with an orphan
- -- type reference, i.e. it will point to an entity that does not
- -- appear within the generated references in the ali file. That is
- -- not good for tools using the xref information.
+ -- If we don't do something about this, we will end with an orphan type
+ -- reference, i.e. it will point to an entity that does not appear
+ -- within the generated references in the ali file. That is not good for
+ -- tools using the xref information.
- -- To fix this, we go through the references adding definition
- -- entries for any unreferenced entities that can be referenced
- -- in a type reference. There is a recursion problem here, and
- -- that is dealt with by making sure that this traversal also
- -- traverses any entries that get added by the traversal.
+ -- To fix this, we go through the references adding definition entries
+ -- for any unreferenced entities that can be referenced in a type
+ -- reference. There is a recursion problem here, and that is dealt with
+ -- by making sure that this traversal also traverses any entries that
+ -- get added by the traversal.
- declare
+ Handle_Orphan_Type_References : declare
J : Nat;
Tref : Entity_Id;
L, R : Character;
Ent : Entity_Id;
Loc : Source_Ptr;
+ procedure New_Entry (E : Entity_Id);
+ -- Make an additional entry into the Xref table for a type entity
+ -- that is related to the current entity (parent, type. ancestor,
+ -- progenitor, etc.).
+
+ ----------------
+ -- New_Entry --
+ ----------------
+
+ procedure New_Entry (E : Entity_Id) is
+ begin
+ if Present (E)
+ and then not Has_Xref_Entry (E)
+ and then Sloc (E) > No_Location
+ then
+ Xrefs.Increment_Last;
+ Indx := Xrefs.Last;
+ Loc := Original_Location (Sloc (E));
+ Xrefs.Table (Indx).Ent := E;
+ Xrefs.Table (Indx).Loc := No_Location;
+ Xrefs.Table (Indx).Eun := Get_Source_Unit (Loc);
+ Xrefs.Table (Indx).Lun := No_Unit;
+ Set_Has_Xref_Entry (E);
+ end if;
+ end New_Entry;
+
+ -- Start of processing for Handle_Orphan_Type_References
+
begin
-- Note that this is not a for loop for a very good reason. The
- -- processing of items in the table can add new items to the
- -- table, and they must be processed as well
+ -- processing of items in the table can add new items to the table,
+ -- and they must be processed as well
J := 1;
while J <= Xrefs.Last loop
and then not Has_Xref_Entry (Tref)
and then Sloc (Tref) > No_Location
then
- Xrefs.Increment_Last;
- Indx := Xrefs.Last;
- Loc := Original_Location (Sloc (Tref));
- Xrefs.Table (Indx).Ent := Tref;
- Xrefs.Table (Indx).Loc := No_Location;
- Xrefs.Table (Indx).Eun := Get_Source_Unit (Loc);
- Xrefs.Table (Indx).Lun := No_Unit;
- Set_Has_Xref_Entry (Tref);
+ New_Entry (Tref);
+
+ if Is_Record_Type (Ent)
+ and then Present (Abstract_Interfaces (Ent))
+ then
+ -- Add an entry for each one of the given interfaces
+ -- implemented by type Ent.
+
+ declare
+ Elmt : Elmt_Id;
+
+ begin
+ Elmt := First_Elmt (Abstract_Interfaces (Ent));
+ while Present (Elmt) loop
+ New_Entry (Node (Elmt));
+ Next_Elmt (Elmt);
+ end loop;
+ end;
+ end if;
end if;
-- Collect inherited primitive operations that may be
and then Ent = Base_Type (Ent)
and then In_Extended_Main_Source_Unit (Ent)
then
-
declare
- Op_List : Elist_Id := Primitive_Operations (Ent);
+ Op_List : constant Elist_Id := Primitive_Operations (Ent);
Op : Elmt_Id;
Prim : Entity_Id;
-- through several derivations.
function Parent_Op (E : Entity_Id) return Entity_Id is
- Orig_Op : Entity_Id := Alias (E);
+ Orig_Op : constant Entity_Id := Alias (E);
begin
if No (Orig_Op) then
return Empty;
-
elsif not Comes_From_Source (E)
and then not Has_Xref_Entry (Orig_Op)
and then Comes_From_Source (Orig_Op)
begin
Op := First_Elmt (Op_List);
-
while Present (Op) loop
-
Prim := Parent_Op (Node (Op));
if Present (Prim) then
J := J + 1;
end loop;
- end;
+ end Handle_Orphan_Type_References;
-- Now we have all the references, including those for any embedded
-- type references, so we can sort them, and output them.
-- Name_Change --
-----------------
+ -- Why a string comparison here??? Why not compare Name_Id values???
+
function Name_Change (X : Entity_Id) return Boolean is
begin
Get_Unqualified_Name_String (Chars (X));
Right : Character;
-- Used for {} or <> or () for type reference
+ procedure Check_Type_Reference
+ (Ent : Entity_Id;
+ List_Interface : Boolean);
+ -- Find whether there is a meaningful type reference for
+ -- Ent, and display it accordingly. If List_Interface is
+ -- true, then Ent is a progenitor interface of the current
+ -- type entity being listed. In that case list it as is,
+ -- without looking for a type reference for it.
+
procedure Output_Instantiation_Refs (Loc : Source_Ptr);
-- Recursive procedure to output instantiation references for
-- the given source ptr in [file|line[...]] form. No output
-- if the given location is not a generic template reference.
+ procedure Output_Overridden_Op (Old_E : Entity_Id);
+ -- For a subprogram that is overriding, display information
+ -- about the inherited operation that it overrides.
+
+ --------------------------
+ -- Check_Type_Reference --
+ --------------------------
+
+ procedure Check_Type_Reference
+ (Ent : Entity_Id;
+ List_Interface : Boolean)
+ is
+ begin
+ if List_Interface then
+
+ -- This is a progenitor interface of the type for
+ -- which xref information is being generated.
+
+ Tref := Ent;
+ Left := '<';
+ Right := '>';
+
+ else
+ Get_Type_Reference (Ent, Tref, Left, Right);
+ end if;
+
+ if Present (Tref) then
+
+ -- Case of standard entity, output name
+
+ if Sloc (Tref) = Standard_Location then
+ Write_Info_Char (Left);
+ Write_Info_Name (Chars (Tref));
+ Write_Info_Char (Right);
+
+ -- Case of source entity, output location
+
+ else
+ Write_Info_Char (Left);
+ Trunit := Get_Source_Unit (Sloc (Tref));
+
+ if Trunit /= Curxu then
+ Write_Info_Nat (Dependency_Num (Trunit));
+ Write_Info_Char ('|');
+ end if;
+
+ Write_Info_Nat
+ (Int (Get_Logical_Line_Number (Sloc (Tref))));
+
+ declare
+ Ent : Entity_Id := Tref;
+ Kind : constant Entity_Kind := Ekind (Ent);
+ Ctyp : Character := Xref_Entity_Letters (Kind);
+
+ begin
+ if Ctyp = '+'
+ and then Present (Full_View (Ent))
+ then
+ Ent := Underlying_Type (Ent);
+
+ if Present (Ent) then
+ Ctyp := Xref_Entity_Letters (Ekind (Ent));
+ end if;
+ end if;
+
+ Write_Info_Char (Ctyp);
+ end;
+
+ Write_Info_Nat
+ (Int (Get_Column_Number (Sloc (Tref))));
+
+ -- If the type comes from an instantiation,
+ -- add the corresponding info.
+
+ Output_Instantiation_Refs (Sloc (Tref));
+ Write_Info_Char (Right);
+ end if;
+ end if;
+ end Check_Type_Reference;
+
-------------------------------
-- Output_Instantiation_Refs --
-------------------------------
return;
end Output_Instantiation_Refs;
+ --------------------------
+ -- Output_Overridden_Op --
+ --------------------------
+
+ procedure Output_Overridden_Op (Old_E : Entity_Id) is
+ begin
+ if Present (Old_E)
+ and then Sloc (Old_E) /= Standard_Location
+ then
+ declare
+ Loc : constant Source_Ptr := Sloc (Old_E);
+ Par_Unit : constant Unit_Number_Type :=
+ Get_Source_Unit (Loc);
+ begin
+ Write_Info_Char ('<');
+
+ if Par_Unit /= Curxu then
+ Write_Info_Nat (Dependency_Num (Par_Unit));
+ Write_Info_Char ('|');
+ end if;
+
+ Write_Info_Nat (Int (Get_Logical_Line_Number (Loc)));
+ Write_Info_Char ('p');
+ Write_Info_Nat (Int (Get_Column_Number (Loc)));
+ Write_Info_Char ('>');
+ end;
+ end if;
+ end Output_Overridden_Op;
+
-- Start of processing for Output_One_Ref
begin
if Present (Ent) then
Ctyp := Fold_Lower (Xref_Entity_Letters (Ekind (Ent)));
end if;
+
+ elsif Is_Generic_Type (Ent) then
+
+ -- If the type of the entity is a generic private type
+ -- there is no usable full view, so retain the indication
+ -- that this is an object.
+
+ Ctyp := '*';
end if;
-- Special handling for access parameter
- if Ekind (Etype (XE.Ent)) = E_Anonymous_Access_Type
- and then Is_Formal (XE.Ent)
- then
- Ctyp := 'p';
+ declare
+ K : constant Entity_Kind := Ekind (Etype (XE.Ent));
- -- Special handling for Boolean
+ begin
+ if (K = E_Anonymous_Access_Type
+ or else
+ K = E_Anonymous_Access_Subprogram_Type
+ or else K =
+ E_Anonymous_Access_Protected_Subprogram_Type)
+ and then Is_Formal (XE.Ent)
+ then
+ Ctyp := 'p';
- elsif Ctyp = 'e' and then Is_Boolean_Type (Ent) then
- Ctyp := 'b';
- end if;
- end if;
+ -- Special handling for Boolean
- -- Special handling for abstract types and operations.
+ elsif Ctyp = 'e' and then Is_Boolean_Type (Ent) then
+ Ctyp := 'b';
+ end if;
+ end;
+ end if;
- if Is_Abstract (XE.Ent) then
+ -- Special handling for abstract types and operations
+ if Is_Overloadable (XE.Ent)
+ and then Is_Abstract_Subprogram (XE.Ent)
+ then
if Ctyp = 'U' then
Ctyp := 'x'; -- abstract procedure
elsif Ctyp = 'V' then
Ctyp := 'y'; -- abstract function
+ end if;
+
+ elsif Is_Type (XE.Ent)
+ and then Is_Abstract_Type (XE.Ent)
+ then
+ if Is_Interface (XE.Ent) then
+ Ctyp := 'h';
elsif Ctyp = 'R' then
Ctyp := 'H'; -- abstract type
end if;
end if;
- -- Only output reference if interesting type of entity,
- -- and suppress self references, except for bodies that
- -- act as specs. Also suppress definitions of body formals
- -- (we only treat these as references, and the references
- -- were separately recorded).
+ -- Only output reference if interesting type of entity, and
+ -- suppress self references, except for bodies that act as
+ -- specs. Also suppress definitions of body formals (we only
+ -- treat these as references, and the references were
+ -- separately recorded).
if Ctyp = ' '
or else (XE.Loc = XE.Def
end if;
end loop;
+ -- Write out the identifier by copying the exact
+ -- source characters used in its declaration. Note
+ -- that this means wide characters will be in their
+ -- original encoded form.
+
for J in
Original_Location (Sloc (XE.Ent)) .. P - 1
loop
Rref := Selector_Name (Rref);
end if;
- if Nkind (Rref) /= N_Identifier then
+ if Nkind (Rref) = N_Identifier
+ or else Nkind (Rref) = N_Operator_Symbol
+ then
+ null;
+
+ -- For renamed array components, use the array name
+ -- for the renamed entity, which reflect the fact that
+ -- in general the whole array is aliased.
+
+ elsif Nkind (Rref) = N_Indexed_Component then
+ if Nkind (Prefix (Rref)) = N_Identifier then
+ Rref := Prefix (Rref);
+ elsif Nkind (Prefix (Rref)) = N_Expanded_Name then
+ Rref := Selector_Name (Prefix (Rref));
+ else
+ Rref := Empty;
+ end if;
+
+ else
Rref := Empty;
end if;
end if;
(Int (Get_Column_Number (Sloc (Rref))));
end if;
- -- Indicate that the entity is in the unit
- -- of the current xref xection.
+ -- Indicate that the entity is in the unit of the current
+ -- xref xection.
Curru := Curxu;
- -- See if we have a type reference and if so output
-
- Get_Type_Reference (XE.Ent, Tref, Left, Right);
+ -- Write out information about generic parent, if entity
+ -- is an instance.
- if Present (Tref) then
+ if Is_Generic_Instance (XE.Ent) then
+ declare
+ Gen_Par : constant Entity_Id :=
+ Generic_Parent
+ (Specification
+ (Unit_Declaration_Node (XE.Ent)));
+ Loc : constant Source_Ptr := Sloc (Gen_Par);
+ Gen_U : constant Unit_Number_Type :=
+ Get_Source_Unit (Loc);
- -- Case of standard entity, output name
-
- if Sloc (Tref) = Standard_Location then
- Write_Info_Char (Left);
- Write_Info_Name (Chars (Tref));
- Write_Info_Char (Right);
-
- -- Case of source entity, output location
-
- else
- Write_Info_Char (Left);
- Trunit := Get_Source_Unit (Sloc (Tref));
-
- if Trunit /= Curxu then
- Write_Info_Nat (Dependency_Num (Trunit));
+ begin
+ Write_Info_Char ('[');
+ if Curru /= Gen_U then
+ Write_Info_Nat (Dependency_Num (Gen_U));
Write_Info_Char ('|');
end if;
Write_Info_Nat
- (Int (Get_Logical_Line_Number (Sloc (Tref))));
-
- declare
- Ent : Entity_Id := Tref;
- Kind : constant Entity_Kind := Ekind (Ent);
- Ctyp : Character := Xref_Entity_Letters (Kind);
+ (Int (Get_Logical_Line_Number (Loc)));
+ Write_Info_Char (']');
+ end;
+ end if;
- begin
- if Ctyp = '+'
- and then Present (Full_View (Ent))
- then
- Ent := Underlying_Type (Ent);
+ -- See if we have a type reference and if so output
- if Present (Ent) then
- Ctyp := Xref_Entity_Letters (Ekind (Ent));
- end if;
- end if;
+ Check_Type_Reference (XE.Ent, False);
- Write_Info_Char (Ctyp);
- end;
+ if Is_Record_Type (XE.Ent)
+ and then Present (Abstract_Interfaces (XE.Ent))
+ then
+ declare
+ Elmt : Elmt_Id;
- Write_Info_Nat
- (Int (Get_Column_Number (Sloc (Tref))));
+ begin
+ Elmt := First_Elmt (Abstract_Interfaces (XE.Ent));
+ while Present (Elmt) loop
+ Check_Type_Reference (Node (Elmt), True);
+ Next_Elmt (Elmt);
+ end loop;
+ end;
+ end if;
- -- If the type comes from an instantiation,
- -- add the corresponding info.
+ -- If the entity is an overriding operation, write
+ -- info on operation that was overridden.
- Output_Instantiation_Refs (Sloc (Tref));
- Write_Info_Char (Right);
- end if;
+ if Is_Subprogram (XE.Ent)
+ and then Is_Overriding_Operation (XE.Ent)
+ then
+ Output_Overridden_Op (Overridden_Operation (XE.Ent));
end if;
-- End of processing for entity output
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