| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- E X P _ D B U G -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1996-2015, 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- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- 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 COPYING3. If not, go to -- |
| -- http://www.gnu.org/licenses for a complete copy of the license. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with Alloc; use Alloc; |
| with Atree; use Atree; |
| with Debug; use Debug; |
| with Einfo; use Einfo; |
| with Nlists; use Nlists; |
| with Nmake; use Nmake; |
| with Opt; use Opt; |
| with Output; use Output; |
| with Sem_Aux; use Sem_Aux; |
| with Sem_Eval; use Sem_Eval; |
| with Sem_Util; use Sem_Util; |
| with Sinfo; use Sinfo; |
| with Stand; use Stand; |
| with Stringt; use Stringt; |
| with Table; |
| with Targparm; use Targparm; |
| with Tbuild; use Tbuild; |
| with Urealp; use Urealp; |
| |
| package body Exp_Dbug is |
| |
| -- The following table is used to queue up the entities passed as |
| -- arguments to Qualify_Entity_Names for later processing when |
| -- Qualify_All_Entity_Names is called. |
| |
| package Name_Qualify_Units is new Table.Table ( |
| Table_Component_Type => Node_Id, |
| Table_Index_Type => Nat, |
| Table_Low_Bound => 1, |
| Table_Initial => Alloc.Name_Qualify_Units_Initial, |
| Table_Increment => Alloc.Name_Qualify_Units_Increment, |
| Table_Name => "Name_Qualify_Units"); |
| |
| -------------------------------- |
| -- Use of Qualification Flags -- |
| -------------------------------- |
| |
| -- There are two flags used to keep track of qualification of entities |
| |
| -- Has_Fully_Qualified_Name |
| -- Has_Qualified_Name |
| |
| -- The difference between these is as follows. Has_Qualified_Name is |
| -- set to indicate that the name has been qualified as required by the |
| -- spec of this package. As described there, this may involve the full |
| -- qualification for the name, but for some entities, notably procedure |
| -- local variables, this full qualification is not required. |
| |
| -- The flag Has_Fully_Qualified_Name is set if indeed the name has been |
| -- fully qualified in the Ada sense. If Has_Fully_Qualified_Name is set, |
| -- then Has_Qualified_Name is also set, but the other way round is not |
| -- the case. |
| |
| -- Consider the following example: |
| |
| -- with ... |
| -- procedure X is |
| -- B : Ddd.Ttt; |
| -- procedure Y is .. |
| |
| -- Here B is a procedure local variable, so it does not need fully |
| -- qualification. The flag Has_Qualified_Name will be set on the |
| -- first attempt to qualify B, to indicate that the job is done |
| -- and need not be redone. |
| |
| -- But Y is qualified as x__y, since procedures are always fully |
| -- qualified, so the first time that an attempt is made to qualify |
| -- the name y, it will be replaced by x__y, and both flags are set. |
| |
| -- Why the two flags? Well there are cases where we derive type names |
| -- from object names. As noted in the spec, type names are always |
| -- fully qualified. Suppose for example that the backend has to build |
| -- a padded type for variable B. then it will construct the PAD name |
| -- from B, but it requires full qualification, so the fully qualified |
| -- type name will be x__b___PAD. The two flags allow the circuit for |
| -- building this name to realize efficiently that b needs further |
| -- qualification. |
| |
| -------------------- |
| -- Homonym_Suffix -- |
| -------------------- |
| |
| -- The string defined here (and its associated length) is used to gather |
| -- the homonym string that will be appended to Name_Buffer when the name |
| -- is complete. Strip_Suffixes appends to this string as does |
| -- Append_Homonym_Number, and Output_Homonym_Numbers_Suffix appends the |
| -- string to the end of Name_Buffer. |
| |
| Homonym_Numbers : String (1 .. 256); |
| Homonym_Len : Natural := 0; |
| |
| ---------------------- |
| -- Local Procedures -- |
| ---------------------- |
| |
| procedure Add_Uint_To_Buffer (U : Uint); |
| -- Add image of universal integer to Name_Buffer, updating Name_Len |
| |
| procedure Add_Real_To_Buffer (U : Ureal); |
| -- Add nnn_ddd to Name_Buffer, where nnn and ddd are integer values of |
| -- the normalized numerator and denominator of the given real value. |
| |
| procedure Append_Homonym_Number (E : Entity_Id); |
| -- If the entity E has homonyms in the same scope, then make an entry |
| -- in the Homonym_Numbers array, bumping Homonym_Count accordingly. |
| |
| function Bounds_Match_Size (E : Entity_Id) return Boolean; |
| -- Determine whether the bounds of E match the size of the type. This is |
| -- used to determine whether encoding is required for a discrete type. |
| |
| function Is_Handled_Scale_Factor (U : Ureal) return Boolean; |
| -- The argument U is the Small_Value of a fixed-point type. This function |
| -- determines whether the back-end can handle this scale factor. When it |
| -- cannot, we have to output a GNAT encoding for the corresponding type. |
| |
| procedure Output_Homonym_Numbers_Suffix; |
| -- If homonym numbers are stored, then output them into Name_Buffer |
| |
| procedure Prepend_String_To_Buffer (S : String); |
| -- Prepend given string to the contents of the string buffer, updating |
| -- the value in Name_Len (i.e. string is added at start of buffer). |
| |
| procedure Prepend_Uint_To_Buffer (U : Uint); |
| -- Prepend image of universal integer to Name_Buffer, updating Name_Len |
| |
| procedure Qualify_Entity_Name (Ent : Entity_Id); |
| -- If not already done, replaces the Chars field of the given entity |
| -- with the appropriate fully qualified name. |
| |
| procedure Reset_Buffers; |
| -- Reset the contents of Name_Buffer and Homonym_Numbers by setting their |
| -- respective lengths to zero. |
| |
| procedure Strip_Suffixes (BNPE_Suffix_Found : in out Boolean); |
| -- Given an qualified entity name in Name_Buffer, remove any plain X or |
| -- X{nb} qualification suffix. The contents of Name_Buffer is not changed |
| -- but Name_Len may be adjusted on return to remove the suffix. If a |
| -- BNPE suffix is found and stripped, then BNPE_Suffix_Found is set to |
| -- True. If no suffix is found, then BNPE_Suffix_Found is not modified. |
| -- This routine also searches for a homonym suffix, and if one is found |
| -- it is also stripped, and the entries are added to the global homonym |
| -- list (Homonym_Numbers) so that they can later be put back. |
| |
| ------------------------ |
| -- Add_Real_To_Buffer -- |
| ------------------------ |
| |
| procedure Add_Real_To_Buffer (U : Ureal) is |
| begin |
| Add_Uint_To_Buffer (Norm_Num (U)); |
| Add_Str_To_Name_Buffer ("_"); |
| Add_Uint_To_Buffer (Norm_Den (U)); |
| end Add_Real_To_Buffer; |
| |
| ------------------------ |
| -- Add_Uint_To_Buffer -- |
| ------------------------ |
| |
| procedure Add_Uint_To_Buffer (U : Uint) is |
| begin |
| if U < 0 then |
| Add_Uint_To_Buffer (-U); |
| Add_Char_To_Name_Buffer ('m'); |
| else |
| UI_Image (U, Decimal); |
| Add_Str_To_Name_Buffer (UI_Image_Buffer (1 .. UI_Image_Length)); |
| end if; |
| end Add_Uint_To_Buffer; |
| |
| --------------------------- |
| -- Append_Homonym_Number -- |
| --------------------------- |
| |
| procedure Append_Homonym_Number (E : Entity_Id) is |
| |
| procedure Add_Nat_To_H (Nr : Nat); |
| -- Little procedure to append Nr to Homonym_Numbers |
| |
| ------------------ |
| -- Add_Nat_To_H -- |
| ------------------ |
| |
| procedure Add_Nat_To_H (Nr : Nat) is |
| begin |
| if Nr >= 10 then |
| Add_Nat_To_H (Nr / 10); |
| end if; |
| |
| Homonym_Len := Homonym_Len + 1; |
| Homonym_Numbers (Homonym_Len) := |
| Character'Val (Nr mod 10 + Character'Pos ('0')); |
| end Add_Nat_To_H; |
| |
| -- Start of processing for Append_Homonym_Number |
| |
| begin |
| if Has_Homonym (E) then |
| declare |
| H : Entity_Id := Homonym (E); |
| Nr : Nat := 1; |
| |
| begin |
| while Present (H) loop |
| if Scope (H) = Scope (E) then |
| Nr := Nr + 1; |
| end if; |
| |
| H := Homonym (H); |
| end loop; |
| |
| if Homonym_Len > 0 then |
| Homonym_Len := Homonym_Len + 1; |
| Homonym_Numbers (Homonym_Len) := '_'; |
| end if; |
| |
| Add_Nat_To_H (Nr); |
| end; |
| end if; |
| end Append_Homonym_Number; |
| |
| ----------------------- |
| -- Bounds_Match_Size -- |
| ----------------------- |
| |
| function Bounds_Match_Size (E : Entity_Id) return Boolean is |
| Siz : Uint; |
| |
| begin |
| if not Is_OK_Static_Subtype (E) then |
| return False; |
| |
| elsif Is_Integer_Type (E) |
| and then Subtypes_Statically_Match (E, Base_Type (E)) |
| then |
| return True; |
| |
| -- Here we check if the static bounds match the natural size, which is |
| -- the size passed through with the debugging information. This is the |
| -- Esize rounded up to 8, 16, 32 or 64 as appropriate. |
| |
| else |
| declare |
| Umark : constant Uintp.Save_Mark := Uintp.Mark; |
| Result : Boolean; |
| |
| begin |
| if Esize (E) <= 8 then |
| Siz := Uint_8; |
| elsif Esize (E) <= 16 then |
| Siz := Uint_16; |
| elsif Esize (E) <= 32 then |
| Siz := Uint_32; |
| else |
| Siz := Uint_64; |
| end if; |
| |
| if Is_Modular_Integer_Type (E) or else Is_Enumeration_Type (E) then |
| Result := |
| Expr_Rep_Value (Type_Low_Bound (E)) = 0 |
| and then |
| 2 ** Siz - Expr_Rep_Value (Type_High_Bound (E)) = 1; |
| |
| else |
| Result := |
| Expr_Rep_Value (Type_Low_Bound (E)) + 2 ** (Siz - 1) = 0 |
| and then |
| 2 ** (Siz - 1) - Expr_Rep_Value (Type_High_Bound (E)) = 1; |
| end if; |
| |
| Release (Umark); |
| return Result; |
| end; |
| end if; |
| end Bounds_Match_Size; |
| |
| -------------------------------- |
| -- Debug_Renaming_Declaration -- |
| -------------------------------- |
| |
| function Debug_Renaming_Declaration (N : Node_Id) return Node_Id is |
| Loc : constant Source_Ptr := Sloc (N); |
| Ent : constant Node_Id := Defining_Entity (N); |
| Nam : constant Node_Id := Name (N); |
| Ren : Node_Id; |
| Typ : Entity_Id; |
| Obj : Entity_Id; |
| Res : Node_Id; |
| |
| Enable : Boolean := Nkind (N) = N_Package_Renaming_Declaration; |
| -- By default, we do not generate an encoding for renaming. This is |
| -- however done (in which case this is set to True) in a few cases: |
| -- - when a package is renamed, |
| -- - when the renaming involves a packed array, |
| -- - when the renaming involves a packed record. |
| |
| procedure Enable_If_Packed_Array (N : Node_Id); |
| -- Enable encoding generation if N is a packed array |
| |
| function Output_Subscript (N : Node_Id; S : String) return Boolean; |
| -- Outputs a single subscript value as ?nnn (subscript is compile time |
| -- known value with value nnn) or as ?e (subscript is local constant |
| -- with name e), where S supplies the proper string to use for ?. |
| -- Returns False if the subscript is not of an appropriate type to |
| -- output in one of these two forms. The result is prepended to the |
| -- name stored in Name_Buffer. |
| |
| ---------------------------- |
| -- Enable_If_Packed_Array -- |
| ---------------------------- |
| |
| procedure Enable_If_Packed_Array (N : Node_Id) is |
| T : constant Entity_Id := Etype (N); |
| begin |
| Enable := |
| Enable or else (Ekind (T) in Array_Kind |
| and then Present (Packed_Array_Impl_Type (T))); |
| end Enable_If_Packed_Array; |
| |
| ---------------------- |
| -- Output_Subscript -- |
| ---------------------- |
| |
| function Output_Subscript (N : Node_Id; S : String) return Boolean is |
| begin |
| if Compile_Time_Known_Value (N) then |
| Prepend_Uint_To_Buffer (Expr_Value (N)); |
| |
| elsif Nkind (N) = N_Identifier |
| and then Scope (Entity (N)) = Scope (Ent) |
| and then Ekind (Entity (N)) = E_Constant |
| then |
| Prepend_String_To_Buffer (Get_Name_String (Chars (Entity (N)))); |
| |
| else |
| return False; |
| end if; |
| |
| Prepend_String_To_Buffer (S); |
| return True; |
| end Output_Subscript; |
| |
| -- Start of processing for Debug_Renaming_Declaration |
| |
| begin |
| if not Comes_From_Source (N) |
| and then not Needs_Debug_Info (Ent) |
| then |
| return Empty; |
| end if; |
| |
| -- Do not output those local variables in VM case, as this does not |
| -- help debugging (they are just unused), and might lead to duplicated |
| -- local variable names. |
| |
| if VM_Target /= No_VM then |
| return Empty; |
| end if; |
| |
| -- Get renamed entity and compute suffix |
| |
| Name_Len := 0; |
| Ren := Nam; |
| loop |
| case Nkind (Ren) is |
| |
| when N_Identifier => |
| exit; |
| |
| when N_Expanded_Name => |
| |
| -- The entity field for an N_Expanded_Name is on the expanded |
| -- name node itself, so we are done here too. |
| |
| exit; |
| |
| when N_Selected_Component => |
| Enable := Enable or else Is_Packed (Etype (Prefix (Ren))); |
| Prepend_String_To_Buffer |
| (Get_Name_String (Chars (Selector_Name (Ren)))); |
| Prepend_String_To_Buffer ("XR"); |
| Ren := Prefix (Ren); |
| |
| when N_Indexed_Component => |
| declare |
| X : Node_Id; |
| |
| begin |
| Enable_If_Packed_Array (Prefix (Ren)); |
| |
| X := Last (Expressions (Ren)); |
| while Present (X) loop |
| if not Output_Subscript (X, "XS") then |
| Set_Materialize_Entity (Ent); |
| return Empty; |
| end if; |
| |
| Prev (X); |
| end loop; |
| end; |
| |
| Ren := Prefix (Ren); |
| |
| when N_Slice => |
| Enable_If_Packed_Array (Prefix (Ren)); |
| Typ := Etype (First_Index (Etype (Nam))); |
| |
| if not Output_Subscript (Type_High_Bound (Typ), "XS") then |
| Set_Materialize_Entity (Ent); |
| return Empty; |
| end if; |
| |
| if not Output_Subscript (Type_Low_Bound (Typ), "XL") then |
| Set_Materialize_Entity (Ent); |
| return Empty; |
| end if; |
| |
| Ren := Prefix (Ren); |
| |
| when N_Explicit_Dereference => |
| Prepend_String_To_Buffer ("XA"); |
| Ren := Prefix (Ren); |
| |
| -- For now, anything else simply results in no translation |
| |
| when others => |
| Set_Materialize_Entity (Ent); |
| return Empty; |
| end case; |
| end loop; |
| |
| -- If we found no reason here to emit an encoding, stop now |
| |
| if not Enable then |
| Set_Materialize_Entity (Ent); |
| return Empty; |
| end if; |
| |
| Prepend_String_To_Buffer ("___XE"); |
| |
| -- Include the designation of the form of renaming |
| |
| case Nkind (N) is |
| when N_Object_Renaming_Declaration => |
| Prepend_String_To_Buffer ("___XR"); |
| |
| when N_Exception_Renaming_Declaration => |
| Prepend_String_To_Buffer ("___XRE"); |
| |
| when N_Package_Renaming_Declaration => |
| Prepend_String_To_Buffer ("___XRP"); |
| |
| when others => |
| return Empty; |
| end case; |
| |
| -- Add the name of the renaming entity to the front |
| |
| Prepend_String_To_Buffer (Get_Name_String (Chars (Ent))); |
| |
| -- If it is a child unit create a fully qualified name, to disambiguate |
| -- multiple child units with the same name and different parents. |
| |
| if Nkind (N) = N_Package_Renaming_Declaration |
| and then Is_Child_Unit (Ent) |
| then |
| Prepend_String_To_Buffer ("__"); |
| Prepend_String_To_Buffer |
| (Get_Name_String (Chars (Scope (Ent)))); |
| end if; |
| |
| -- Create the special object whose name is the debug encoding for the |
| -- renaming declaration. |
| |
| -- For now, the object name contains the suffix encoding for the renamed |
| -- object, but not the name of the leading entity. The object is linked |
| -- the renamed entity using the Debug_Renaming_Link field. Then the |
| -- Qualify_Entity_Name procedure uses this link to create the proper |
| -- fully qualified name. |
| |
| -- The reason we do things this way is that we really need to copy the |
| -- qualification of the renamed entity, and it is really much easier to |
| -- do this after the renamed entity has itself been fully qualified. |
| |
| Obj := Make_Defining_Identifier (Loc, Chars => Name_Enter); |
| Res := |
| Make_Object_Declaration (Loc, |
| Defining_Identifier => Obj, |
| Object_Definition => New_Occurrence_Of |
| (Standard_Debug_Renaming_Type, Loc)); |
| |
| Set_Debug_Renaming_Link (Obj, Entity (Ren)); |
| |
| Set_Debug_Info_Needed (Obj); |
| |
| -- The renamed entity may be a temporary, e.g. the result of an |
| -- implicit dereference in an iterator. Indicate that the temporary |
| -- itself requires debug information. If the renamed entity comes |
| -- from source this is a no-op. |
| |
| Set_Debug_Info_Needed (Entity (Ren)); |
| |
| -- Mark the object as internal so that it won't be initialized when |
| -- pragma Initialize_Scalars or Normalize_Scalars is in use. |
| |
| Set_Is_Internal (Obj); |
| |
| return Res; |
| |
| -- If we get an exception, just figure it is a case that we cannot |
| -- successfully handle using our current approach, since this is |
| -- only for debugging, no need to take the compilation with us. |
| |
| exception |
| when others => |
| return Make_Null_Statement (Loc); |
| end Debug_Renaming_Declaration; |
| |
| ----------------------------- |
| -- Is_Handled_Scale_Factor -- |
| ----------------------------- |
| |
| function Is_Handled_Scale_Factor (U : Ureal) return Boolean is |
| begin |
| -- Keep in sync with gigi (see E_*_Fixed_Point_Type handling in |
| -- decl.c:gnat_to_gnu_entity). |
| |
| if UI_Eq (Numerator (U), Uint_1) then |
| if Rbase (U) = 2 or else Rbase (U) = 10 then |
| return True; |
| end if; |
| end if; |
| |
| return |
| (UI_Is_In_Int_Range (Norm_Num (U)) |
| and then |
| UI_Is_In_Int_Range (Norm_Den (U))); |
| end Is_Handled_Scale_Factor; |
| |
| ---------------------- |
| -- Get_Encoded_Name -- |
| ---------------------- |
| |
| -- Note: see spec for details on encodings |
| |
| procedure Get_Encoded_Name (E : Entity_Id) is |
| Has_Suffix : Boolean; |
| |
| begin |
| -- If not generating code, there is no need to create encoded names, and |
| -- problems when the back-end is called to annotate types without full |
| -- code generation. See comments in Get_External_Name for additional |
| -- details. |
| |
| -- However we do create encoded names if the back end is active, even |
| -- if Operating_Mode got reset. Otherwise any serious error reported |
| -- by the backend calling Error_Msg changes the Compilation_Mode to |
| -- Check_Semantics, which disables the functionality of this routine, |
| -- causing the generation of spurious additional errors. |
| |
| -- Couldn't we just test Original_Operating_Mode here? ??? |
| |
| if Operating_Mode /= Generate_Code |
| and then not Generating_Code |
| then |
| return; |
| end if; |
| |
| Get_Name_String (Chars (E)); |
| |
| -- Nothing to do if we do not have a type |
| |
| if not Is_Type (E) |
| |
| -- Or if this is an enumeration base type |
| |
| or else (Is_Enumeration_Type (E) and then Is_Base_Type (E)) |
| |
| -- Or if this is a dummy type for a renaming |
| |
| or else (Name_Len >= 3 and then |
| Name_Buffer (Name_Len - 2 .. Name_Len) = "_XR") |
| |
| or else (Name_Len >= 4 and then |
| (Name_Buffer (Name_Len - 3 .. Name_Len) = "_XRE" |
| or else |
| Name_Buffer (Name_Len - 3 .. Name_Len) = "_XRP")) |
| |
| -- For all these cases, just return the name unchanged |
| |
| then |
| Name_Buffer (Name_Len + 1) := ASCII.NUL; |
| return; |
| end if; |
| |
| Has_Suffix := True; |
| |
| -- Fixed-point case: generate GNAT encodings when asked to or when we |
| -- know the back-end will not be able to handle the scale factor. |
| |
| if Is_Fixed_Point_Type (E) |
| and then (GNAT_Encodings /= DWARF_GNAT_Encodings_Minimal |
| or else not Is_Handled_Scale_Factor (Small_Value (E))) |
| then |
| Get_External_Name (E, True, "XF_"); |
| Add_Real_To_Buffer (Delta_Value (E)); |
| |
| if Small_Value (E) /= Delta_Value (E) then |
| Add_Str_To_Name_Buffer ("_"); |
| Add_Real_To_Buffer (Small_Value (E)); |
| end if; |
| |
| -- Discrete case where bounds do not match size. Not necessary if we can |
| -- emit standard DWARF. |
| |
| elsif GNAT_Encodings /= DWARF_GNAT_Encodings_Minimal |
| and then Is_Discrete_Type (E) |
| and then not Bounds_Match_Size (E) |
| then |
| declare |
| Lo : constant Node_Id := Type_Low_Bound (E); |
| Hi : constant Node_Id := Type_High_Bound (E); |
| |
| Lo_Con : constant Boolean := Compile_Time_Known_Value (Lo); |
| Hi_Con : constant Boolean := Compile_Time_Known_Value (Hi); |
| |
| Lo_Discr : constant Boolean := |
| Nkind (Lo) = N_Identifier |
| and then Ekind (Entity (Lo)) = E_Discriminant; |
| |
| Hi_Discr : constant Boolean := |
| Nkind (Hi) = N_Identifier |
| and then Ekind (Entity (Hi)) = E_Discriminant; |
| |
| Lo_Encode : constant Boolean := Lo_Con or Lo_Discr; |
| Hi_Encode : constant Boolean := Hi_Con or Hi_Discr; |
| |
| Biased : constant Boolean := Has_Biased_Representation (E); |
| |
| begin |
| if Biased then |
| Get_External_Name (E, True, "XB"); |
| else |
| Get_External_Name (E, True, "XD"); |
| end if; |
| |
| if Lo_Encode or Hi_Encode then |
| if Biased then |
| Add_Str_To_Name_Buffer ("_"); |
| else |
| if Lo_Encode then |
| if Hi_Encode then |
| Add_Str_To_Name_Buffer ("LU_"); |
| else |
| Add_Str_To_Name_Buffer ("L_"); |
| end if; |
| else |
| Add_Str_To_Name_Buffer ("U_"); |
| end if; |
| end if; |
| |
| if Lo_Con then |
| Add_Uint_To_Buffer (Expr_Rep_Value (Lo)); |
| elsif Lo_Discr then |
| Get_Name_String_And_Append (Chars (Entity (Lo))); |
| end if; |
| |
| if Lo_Encode and Hi_Encode then |
| Add_Str_To_Name_Buffer ("__"); |
| end if; |
| |
| if Hi_Con then |
| Add_Uint_To_Buffer (Expr_Rep_Value (Hi)); |
| elsif Hi_Discr then |
| Get_Name_String_And_Append (Chars (Entity (Hi))); |
| end if; |
| end if; |
| end; |
| |
| -- For all other cases, the encoded name is the normal type name |
| |
| else |
| Has_Suffix := False; |
| Get_External_Name (E); |
| end if; |
| |
| if Debug_Flag_B and then Has_Suffix then |
| Write_Str ("**** type "); |
| Write_Name (Chars (E)); |
| Write_Str (" is encoded as "); |
| Write_Str (Name_Buffer (1 .. Name_Len)); |
| Write_Eol; |
| end if; |
| |
| Name_Buffer (Name_Len + 1) := ASCII.NUL; |
| end Get_Encoded_Name; |
| |
| ----------------------- |
| -- Get_External_Name -- |
| ----------------------- |
| |
| procedure Get_External_Name |
| (Entity : Entity_Id; |
| Has_Suffix : Boolean := False; |
| Suffix : String := "") |
| is |
| E : Entity_Id := Entity; |
| Kind : Entity_Kind; |
| |
| procedure Get_Qualified_Name_And_Append (Entity : Entity_Id); |
| -- Appends fully qualified name of given entity to Name_Buffer |
| |
| ----------------------------------- |
| -- Get_Qualified_Name_And_Append -- |
| ----------------------------------- |
| |
| procedure Get_Qualified_Name_And_Append (Entity : Entity_Id) is |
| begin |
| -- If the entity is a compilation unit, its scope is Standard, |
| -- there is no outer scope, and the no further qualification |
| -- is required. |
| |
| -- If the front end has already computed a fully qualified name, |
| -- then it is also the case that no further qualification is |
| -- required. |
| |
| if Present (Scope (Scope (Entity))) |
| and then not Has_Fully_Qualified_Name (Entity) |
| then |
| Get_Qualified_Name_And_Append (Scope (Entity)); |
| Add_Str_To_Name_Buffer ("__"); |
| Get_Name_String_And_Append (Chars (Entity)); |
| Append_Homonym_Number (Entity); |
| |
| else |
| Get_Name_String_And_Append (Chars (Entity)); |
| end if; |
| end Get_Qualified_Name_And_Append; |
| |
| -- Start of processing for Get_External_Name |
| |
| begin |
| -- If we are not in code generation mode, this procedure may still be |
| -- called from Back_End (more specifically - from gigi for doing type |
| -- representation annotation or some representation-specific checks). |
| -- But in this mode there is no need to mess with external names. |
| |
| -- Furthermore, the call causes difficulties in this case because the |
| -- string representing the homonym number is not correctly reset as a |
| -- part of the call to Output_Homonym_Numbers_Suffix (which is not |
| -- called in gigi). |
| |
| if Operating_Mode /= Generate_Code then |
| return; |
| end if; |
| |
| Reset_Buffers; |
| |
| -- If this is a child unit, we want the child |
| |
| if Nkind (E) = N_Defining_Program_Unit_Name then |
| E := Defining_Identifier (Entity); |
| end if; |
| |
| Kind := Ekind (E); |
| |
| -- Case of interface name being used |
| |
| if (Kind = E_Procedure or else |
| Kind = E_Function or else |
| Kind = E_Constant or else |
| Kind = E_Variable or else |
| Kind = E_Exception) |
| and then Present (Interface_Name (E)) |
| and then No (Address_Clause (E)) |
| and then not Has_Suffix |
| then |
| Add_String_To_Name_Buffer (Strval (Interface_Name (E))); |
| |
| -- All other cases besides the interface name case |
| |
| else |
| -- If this is a library level subprogram (i.e. a subprogram that is a |
| -- compilation unit other than a subunit), then we prepend _ada_ to |
| -- ensure distinctions required as described in the spec. |
| |
| -- Check explicitly for child units, because those are not flagged |
| -- as Compilation_Units by lib. Should they be ??? |
| |
| if Is_Subprogram (E) |
| and then (Is_Compilation_Unit (E) or Is_Child_Unit (E)) |
| and then not Has_Suffix |
| then |
| Add_Str_To_Name_Buffer ("_ada_"); |
| end if; |
| |
| -- If the entity is a subprogram instance that is not a compilation |
| -- unit, generate the name of the original Ada entity, which is the |
| -- one gdb needs. |
| |
| if Is_Generic_Instance (E) |
| and then Is_Subprogram (E) |
| and then not Is_Compilation_Unit (Scope (E)) |
| and then (Ekind (Scope (E)) = E_Package |
| or else |
| Ekind (Scope (E)) = E_Package_Body) |
| and then Present (Related_Instance (Scope (E))) |
| then |
| E := Related_Instance (Scope (E)); |
| end if; |
| |
| Get_Qualified_Name_And_Append (E); |
| end if; |
| |
| if Has_Suffix then |
| Add_Str_To_Name_Buffer ("___"); |
| Add_Str_To_Name_Buffer (Suffix); |
| end if; |
| |
| Name_Buffer (Name_Len + 1) := ASCII.NUL; |
| end Get_External_Name; |
| |
| -------------------------- |
| -- Get_Variant_Encoding -- |
| -------------------------- |
| |
| procedure Get_Variant_Encoding (V : Node_Id) is |
| Choice : Node_Id; |
| |
| procedure Choice_Val (Typ : Character; Choice : Node_Id); |
| -- Output encoded value for a single choice value. Typ is the key |
| -- character ('S', 'F', or 'T') that precedes the choice value. |
| |
| ---------------- |
| -- Choice_Val -- |
| ---------------- |
| |
| procedure Choice_Val (Typ : Character; Choice : Node_Id) is |
| begin |
| if Nkind (Choice) = N_Integer_Literal then |
| Add_Char_To_Name_Buffer (Typ); |
| Add_Uint_To_Buffer (Intval (Choice)); |
| |
| -- Character literal with no entity present (this is the case |
| -- Standard.Character or Standard.Wide_Character as root type) |
| |
| elsif Nkind (Choice) = N_Character_Literal |
| and then No (Entity (Choice)) |
| then |
| Add_Char_To_Name_Buffer (Typ); |
| Add_Uint_To_Buffer (Char_Literal_Value (Choice)); |
| |
| else |
| declare |
| Ent : constant Entity_Id := Entity (Choice); |
| |
| begin |
| if Ekind (Ent) = E_Enumeration_Literal then |
| Add_Char_To_Name_Buffer (Typ); |
| Add_Uint_To_Buffer (Enumeration_Rep (Ent)); |
| |
| else |
| pragma Assert (Ekind (Ent) = E_Constant); |
| Choice_Val (Typ, Constant_Value (Ent)); |
| end if; |
| end; |
| end if; |
| end Choice_Val; |
| |
| -- Start of processing for Get_Variant_Encoding |
| |
| begin |
| Name_Len := 0; |
| |
| Choice := First (Discrete_Choices (V)); |
| while Present (Choice) loop |
| if Nkind (Choice) = N_Others_Choice then |
| Add_Char_To_Name_Buffer ('O'); |
| |
| elsif Nkind (Choice) = N_Range then |
| Choice_Val ('R', Low_Bound (Choice)); |
| Choice_Val ('T', High_Bound (Choice)); |
| |
| elsif Is_Entity_Name (Choice) |
| and then Is_Type (Entity (Choice)) |
| then |
| Choice_Val ('R', Type_Low_Bound (Entity (Choice))); |
| Choice_Val ('T', Type_High_Bound (Entity (Choice))); |
| |
| elsif Nkind (Choice) = N_Subtype_Indication then |
| declare |
| Rang : constant Node_Id := |
| Range_Expression (Constraint (Choice)); |
| begin |
| Choice_Val ('R', Low_Bound (Rang)); |
| Choice_Val ('T', High_Bound (Rang)); |
| end; |
| |
| else |
| Choice_Val ('S', Choice); |
| end if; |
| |
| Next (Choice); |
| end loop; |
| |
| Name_Buffer (Name_Len + 1) := ASCII.NUL; |
| |
| if Debug_Flag_B then |
| declare |
| VP : constant Node_Id := Parent (V); -- Variant_Part |
| CL : constant Node_Id := Parent (VP); -- Component_List |
| RD : constant Node_Id := Parent (CL); -- Record_Definition |
| FT : constant Node_Id := Parent (RD); -- Full_Type_Declaration |
| |
| begin |
| Write_Str ("**** variant for type "); |
| Write_Name (Chars (Defining_Identifier (FT))); |
| Write_Str (" is encoded as "); |
| Write_Str (Name_Buffer (1 .. Name_Len)); |
| Write_Eol; |
| end; |
| end if; |
| end Get_Variant_Encoding; |
| |
| ----------------------------------------- |
| -- Build_Subprogram_Instance_Renamings -- |
| ----------------------------------------- |
| |
| procedure Build_Subprogram_Instance_Renamings |
| (N : Node_Id; |
| Wrapper : Entity_Id) |
| is |
| Loc : Source_Ptr; |
| Decl : Node_Id; |
| E : Entity_Id; |
| |
| begin |
| E := First_Entity (Wrapper); |
| while Present (E) loop |
| if Nkind (Parent (E)) = N_Object_Declaration |
| and then Is_Elementary_Type (Etype (E)) |
| then |
| Loc := Sloc (Expression (Parent (E))); |
| Decl := Make_Object_Renaming_Declaration (Loc, |
| Defining_Identifier => |
| Make_Defining_Identifier (Loc, Chars (E)), |
| Subtype_Mark => New_Occurrence_Of (Etype (E), Loc), |
| Name => New_Occurrence_Of (E, Loc)); |
| |
| Append (Decl, Declarations (N)); |
| Set_Needs_Debug_Info (Defining_Identifier (Decl)); |
| end if; |
| |
| Next_Entity (E); |
| end loop; |
| end Build_Subprogram_Instance_Renamings; |
| |
| ------------------------------------ |
| -- Get_Secondary_DT_External_Name -- |
| ------------------------------------ |
| |
| procedure Get_Secondary_DT_External_Name |
| (Typ : Entity_Id; |
| Ancestor_Typ : Entity_Id; |
| Suffix_Index : Int) |
| is |
| begin |
| Get_External_Name (Typ); |
| |
| if Ancestor_Typ /= Typ then |
| declare |
| Len : constant Natural := Name_Len; |
| Save_Str : constant String (1 .. Name_Len) |
| := Name_Buffer (1 .. Name_Len); |
| begin |
| Get_External_Name (Ancestor_Typ); |
| |
| -- Append the extended name of the ancestor to the |
| -- extended name of Typ |
| |
| Name_Buffer (Len + 2 .. Len + Name_Len + 1) := |
| Name_Buffer (1 .. Name_Len); |
| Name_Buffer (1 .. Len) := Save_Str; |
| Name_Buffer (Len + 1) := '_'; |
| Name_Len := Len + Name_Len + 1; |
| end; |
| end if; |
| |
| Add_Nat_To_Name_Buffer (Suffix_Index); |
| end Get_Secondary_DT_External_Name; |
| |
| --------------------------------- |
| -- Make_Packed_Array_Impl_Type_Name -- |
| --------------------------------- |
| |
| function Make_Packed_Array_Impl_Type_Name |
| (Typ : Entity_Id; |
| Csize : Uint) |
| return Name_Id |
| is |
| begin |
| Get_Name_String (Chars (Typ)); |
| Add_Str_To_Name_Buffer ("___XP"); |
| Add_Uint_To_Buffer (Csize); |
| return Name_Find; |
| end Make_Packed_Array_Impl_Type_Name; |
| |
| ----------------------------------- |
| -- Output_Homonym_Numbers_Suffix -- |
| ----------------------------------- |
| |
| procedure Output_Homonym_Numbers_Suffix is |
| J : Natural; |
| |
| begin |
| if Homonym_Len > 0 then |
| |
| -- Check for all 1's, in which case we do not output |
| |
| J := 1; |
| loop |
| exit when Homonym_Numbers (J) /= '1'; |
| |
| -- If we reached end of string we do not output |
| |
| if J = Homonym_Len then |
| Homonym_Len := 0; |
| return; |
| end if; |
| |
| exit when Homonym_Numbers (J + 1) /= '_'; |
| J := J + 2; |
| end loop; |
| |
| -- If we exit the loop then suffix must be output |
| |
| Add_Str_To_Name_Buffer ("__"); |
| Add_Str_To_Name_Buffer (Homonym_Numbers (1 .. Homonym_Len)); |
| Homonym_Len := 0; |
| end if; |
| end Output_Homonym_Numbers_Suffix; |
| |
| ------------------------------ |
| -- Prepend_String_To_Buffer -- |
| ------------------------------ |
| |
| procedure Prepend_String_To_Buffer (S : String) is |
| N : constant Integer := S'Length; |
| begin |
| Name_Buffer (1 + N .. Name_Len + N) := Name_Buffer (1 .. Name_Len); |
| Name_Buffer (1 .. N) := S; |
| Name_Len := Name_Len + N; |
| end Prepend_String_To_Buffer; |
| |
| ---------------------------- |
| -- Prepend_Uint_To_Buffer -- |
| ---------------------------- |
| |
| procedure Prepend_Uint_To_Buffer (U : Uint) is |
| begin |
| if U < 0 then |
| Prepend_String_To_Buffer ("m"); |
| Prepend_Uint_To_Buffer (-U); |
| else |
| UI_Image (U, Decimal); |
| Prepend_String_To_Buffer (UI_Image_Buffer (1 .. UI_Image_Length)); |
| end if; |
| end Prepend_Uint_To_Buffer; |
| |
| ------------------------------ |
| -- Qualify_All_Entity_Names -- |
| ------------------------------ |
| |
| procedure Qualify_All_Entity_Names is |
| E : Entity_Id; |
| Ent : Entity_Id; |
| Nod : Node_Id; |
| |
| begin |
| for J in Name_Qualify_Units.First .. Name_Qualify_Units.Last loop |
| Nod := Name_Qualify_Units.Table (J); |
| |
| -- When a scoping construct is ignored Ghost, it is rewritten as |
| -- a null statement. Skip such constructs as they no longer carry |
| -- names. |
| |
| if Nkind (Nod) = N_Null_Statement then |
| goto Continue; |
| end if; |
| |
| E := Defining_Entity (Nod); |
| Reset_Buffers; |
| Qualify_Entity_Name (E); |
| |
| -- Normally entities in the qualification list are scopes, but in the |
| -- case of a library-level package renaming there is an associated |
| -- variable that encodes the debugger name and that variable is |
| -- entered in the list since it occurs in the Aux_Decls list of the |
| -- compilation and doesn't have a normal scope. |
| |
| if Ekind (E) /= E_Variable then |
| Ent := First_Entity (E); |
| while Present (Ent) loop |
| Reset_Buffers; |
| Qualify_Entity_Name (Ent); |
| Next_Entity (Ent); |
| |
| -- There are odd cases where Last_Entity (E) = E. This happens |
| -- in the case of renaming of packages. This test avoids |
| -- getting stuck in such cases. |
| |
| exit when Ent = E; |
| end loop; |
| end if; |
| |
| <<Continue>> |
| null; |
| end loop; |
| end Qualify_All_Entity_Names; |
| |
| ------------------------- |
| -- Qualify_Entity_Name -- |
| ------------------------- |
| |
| procedure Qualify_Entity_Name (Ent : Entity_Id) is |
| |
| Full_Qualify_Name : String (1 .. Name_Buffer'Length); |
| Full_Qualify_Len : Natural := 0; |
| -- Used to accumulate fully qualified name of subprogram |
| |
| procedure Fully_Qualify_Name (E : Entity_Id); |
| -- Used to qualify a subprogram or type name, where full |
| -- qualification up to Standard is always used. Name is set |
| -- in Full_Qualify_Name with the length in Full_Qualify_Len. |
| -- Note that this routine does not prepend the _ada_ string |
| -- required for library subprograms (this is done in the back end). |
| |
| function Is_BNPE (S : Entity_Id) return Boolean; |
| -- Determines if S is a BNPE, i.e. Body-Nested Package Entity, which |
| -- is defined to be a package which is immediately nested within a |
| -- package body. |
| |
| function Qualify_Needed (S : Entity_Id) return Boolean; |
| -- Given a scope, determines if the scope is to be included in the |
| -- fully qualified name, True if so, False if not. Blocks and loops |
| -- are excluded from a qualified name. |
| |
| procedure Set_BNPE_Suffix (E : Entity_Id); |
| -- Recursive routine to append the BNPE qualification suffix. Works |
| -- from right to left with E being the current entity in the list. |
| -- The result does NOT have the trailing n's and trailing b stripped. |
| -- The caller must do this required stripping. |
| |
| procedure Set_Entity_Name (E : Entity_Id); |
| -- Internal recursive routine that does most of the work. This routine |
| -- leaves the result sitting in Name_Buffer and Name_Len. |
| |
| BNPE_Suffix_Needed : Boolean := False; |
| -- Set true if a body-nested package entity suffix is required |
| |
| Save_Chars : constant Name_Id := Chars (Ent); |
| -- Save original name |
| |
| ------------------------ |
| -- Fully_Qualify_Name -- |
| ------------------------ |
| |
| procedure Fully_Qualify_Name (E : Entity_Id) is |
| Discard : Boolean := False; |
| |
| begin |
| -- Ignore empty entry (can happen in error cases) |
| |
| if No (E) then |
| return; |
| |
| -- If this we are qualifying entities local to a generic instance, |
| -- use the name of the original instantiation, not that of the |
| -- anonymous subprogram in the wrapper package, so that gdb doesn't |
| -- have to know about these. |
| |
| elsif Is_Generic_Instance (E) |
| and then Is_Subprogram (E) |
| and then not Comes_From_Source (E) |
| and then not Is_Compilation_Unit (Scope (E)) |
| then |
| Fully_Qualify_Name (Related_Instance (Scope (E))); |
| return; |
| end if; |
| |
| -- If we reached fully qualified name, then just copy it |
| |
| if Has_Fully_Qualified_Name (E) then |
| Get_Name_String (Chars (E)); |
| Strip_Suffixes (Discard); |
| Full_Qualify_Name (1 .. Name_Len) := Name_Buffer (1 .. Name_Len); |
| Full_Qualify_Len := Name_Len; |
| Set_Has_Fully_Qualified_Name (Ent); |
| |
| -- Case of non-fully qualified name |
| |
| else |
| if Scope (E) = Standard_Standard then |
| Set_Has_Fully_Qualified_Name (Ent); |
| else |
| Fully_Qualify_Name (Scope (E)); |
| Full_Qualify_Name (Full_Qualify_Len + 1) := '_'; |
| Full_Qualify_Name (Full_Qualify_Len + 2) := '_'; |
| Full_Qualify_Len := Full_Qualify_Len + 2; |
| end if; |
| |
| if Has_Qualified_Name (E) then |
| Get_Unqualified_Name_String (Chars (E)); |
| else |
| Get_Name_String (Chars (E)); |
| end if; |
| |
| -- Here we do one step of the qualification |
| |
| Full_Qualify_Name |
| (Full_Qualify_Len + 1 .. Full_Qualify_Len + Name_Len) := |
| Name_Buffer (1 .. Name_Len); |
| Full_Qualify_Len := Full_Qualify_Len + Name_Len; |
| Append_Homonym_Number (E); |
| end if; |
| |
| if Is_BNPE (E) then |
| BNPE_Suffix_Needed := True; |
| end if; |
| end Fully_Qualify_Name; |
| |
| ------------- |
| -- Is_BNPE -- |
| ------------- |
| |
| function Is_BNPE (S : Entity_Id) return Boolean is |
| begin |
| return Ekind (S) = E_Package and then Is_Package_Body_Entity (S); |
| end Is_BNPE; |
| |
| -------------------- |
| -- Qualify_Needed -- |
| -------------------- |
| |
| function Qualify_Needed (S : Entity_Id) return Boolean is |
| begin |
| -- If we got all the way to Standard, then we have certainly |
| -- fully qualified the name, so set the flag appropriately, |
| -- and then return False, since we are most certainly done. |
| |
| if S = Standard_Standard then |
| Set_Has_Fully_Qualified_Name (Ent, True); |
| return False; |
| |
| -- Otherwise figure out if further qualification is required |
| |
| else |
| return Is_Subprogram (Ent) |
| or else Ekind (Ent) = E_Subprogram_Body |
| or else (Ekind (S) /= E_Block |
| and then Ekind (S) /= E_Loop |
| and then not Is_Dynamic_Scope (S)); |
| end if; |
| end Qualify_Needed; |
| |
| --------------------- |
| -- Set_BNPE_Suffix -- |
| --------------------- |
| |
| procedure Set_BNPE_Suffix (E : Entity_Id) is |
| S : constant Entity_Id := Scope (E); |
| |
| begin |
| if Qualify_Needed (S) then |
| Set_BNPE_Suffix (S); |
| |
| if Is_BNPE (E) then |
| Add_Char_To_Name_Buffer ('b'); |
| else |
| Add_Char_To_Name_Buffer ('n'); |
| end if; |
| |
| else |
| Add_Char_To_Name_Buffer ('X'); |
| end if; |
| end Set_BNPE_Suffix; |
| |
| --------------------- |
| -- Set_Entity_Name -- |
| --------------------- |
| |
| procedure Set_Entity_Name (E : Entity_Id) is |
| S : constant Entity_Id := Scope (E); |
| |
| begin |
| -- If we reach an already qualified name, just take the encoding |
| -- except that we strip the package body suffixes, since these |
| -- will be separately put on later. |
| |
| if Has_Qualified_Name (E) then |
| Get_Name_String_And_Append (Chars (E)); |
| Strip_Suffixes (BNPE_Suffix_Needed); |
| |
| -- If the top level name we are adding is itself fully |
| -- qualified, then that means that the name that we are |
| -- preparing for the Fully_Qualify_Name call will also |
| -- generate a fully qualified name. |
| |
| if Has_Fully_Qualified_Name (E) then |
| Set_Has_Fully_Qualified_Name (Ent); |
| end if; |
| |
| -- Case where upper level name is not encoded yet |
| |
| else |
| -- Recurse if further qualification required |
| |
| if Qualify_Needed (S) then |
| Set_Entity_Name (S); |
| Add_Str_To_Name_Buffer ("__"); |
| end if; |
| |
| -- Otherwise get name and note if it is a BNPE |
| |
| Get_Name_String_And_Append (Chars (E)); |
| |
| if Is_BNPE (E) then |
| BNPE_Suffix_Needed := True; |
| end if; |
| |
| Append_Homonym_Number (E); |
| end if; |
| end Set_Entity_Name; |
| |
| -- Start of processing for Qualify_Entity_Name |
| |
| begin |
| if Has_Qualified_Name (Ent) then |
| return; |
| |
| -- In formal verification mode, simply append a suffix for homonyms. |
| -- We used to qualify entity names as full expansion does, but this was |
| -- removed as this prevents the verification back-end from using a short |
| -- name for debugging and user interaction. The verification back-end |
| -- already takes care of qualifying names when needed. Still mark the |
| -- name as being qualified, as Qualify_Entity_Name may be called more |
| -- than once on the same entity. |
| |
| elsif GNATprove_Mode then |
| if Has_Homonym (Ent) then |
| Get_Name_String (Chars (Ent)); |
| Append_Homonym_Number (Ent); |
| Output_Homonym_Numbers_Suffix; |
| Set_Chars (Ent, Name_Enter); |
| end if; |
| |
| Set_Has_Qualified_Name (Ent); |
| return; |
| |
| -- If the entity is a variable encoding the debug name for an object |
| -- renaming, then the qualified name of the entity associated with the |
| -- renamed object can now be incorporated in the debug name. |
| |
| elsif Ekind (Ent) = E_Variable |
| and then Present (Debug_Renaming_Link (Ent)) |
| then |
| Name_Len := 0; |
| Qualify_Entity_Name (Debug_Renaming_Link (Ent)); |
| Get_Name_String (Chars (Ent)); |
| |
| -- Retrieve the now-qualified name of the renamed entity and insert |
| -- it in the middle of the name, just preceding the suffix encoding |
| -- describing the renamed object. |
| |
| declare |
| Renamed_Id : constant String := |
| Get_Name_String (Chars (Debug_Renaming_Link (Ent))); |
| Insert_Len : constant Integer := Renamed_Id'Length + 1; |
| Index : Natural := Name_Len - 3; |
| |
| begin |
| -- Loop backwards through the name to find the start of the "___" |
| -- sequence associated with the suffix. |
| |
| while Index >= Name_Buffer'First |
| and then (Name_Buffer (Index + 1) /= '_' |
| or else Name_Buffer (Index + 2) /= '_' |
| or else Name_Buffer (Index + 3) /= '_') |
| loop |
| Index := Index - 1; |
| end loop; |
| |
| pragma Assert (Name_Buffer (Index + 1 .. Index + 3) = "___"); |
| |
| -- Insert an underscore separator and the entity name just in |
| -- front of the suffix. |
| |
| Name_Buffer (Index + 1 + Insert_Len .. Name_Len + Insert_Len) := |
| Name_Buffer (Index + 1 .. Name_Len); |
| Name_Buffer (Index + 1) := '_'; |
| Name_Buffer (Index + 2 .. Index + Insert_Len) := Renamed_Id; |
| Name_Len := Name_Len + Insert_Len; |
| end; |
| |
| -- Reset the name of the variable to the new name that includes the |
| -- name of the renamed entity. |
| |
| Set_Chars (Ent, Name_Enter); |
| |
| -- If the entity needs qualification by its scope then develop it |
| -- here, add the variable's name, and again reset the entity name. |
| |
| if Qualify_Needed (Scope (Ent)) then |
| Name_Len := 0; |
| Set_Entity_Name (Scope (Ent)); |
| Add_Str_To_Name_Buffer ("__"); |
| |
| Get_Name_String_And_Append (Chars (Ent)); |
| |
| Set_Chars (Ent, Name_Enter); |
| end if; |
| |
| Set_Has_Qualified_Name (Ent); |
| return; |
| |
| elsif Is_Subprogram (Ent) |
| or else Ekind (Ent) = E_Subprogram_Body |
| or else Is_Type (Ent) |
| then |
| Fully_Qualify_Name (Ent); |
| Name_Len := Full_Qualify_Len; |
| Name_Buffer (1 .. Name_Len) := Full_Qualify_Name (1 .. Name_Len); |
| |
| elsif Qualify_Needed (Scope (Ent)) then |
| Name_Len := 0; |
| Set_Entity_Name (Ent); |
| |
| else |
| Set_Has_Qualified_Name (Ent); |
| return; |
| end if; |
| |
| -- Fall through with a fully qualified name in Name_Buffer/Name_Len |
| |
| Output_Homonym_Numbers_Suffix; |
| |
| -- Add body-nested package suffix if required |
| |
| if BNPE_Suffix_Needed |
| and then Ekind (Ent) /= E_Enumeration_Literal |
| then |
| Set_BNPE_Suffix (Ent); |
| |
| -- Strip trailing n's and last trailing b as required. note that |
| -- we know there is at least one b, or no suffix would be generated. |
| |
| while Name_Buffer (Name_Len) = 'n' loop |
| Name_Len := Name_Len - 1; |
| end loop; |
| |
| Name_Len := Name_Len - 1; |
| end if; |
| |
| Set_Chars (Ent, Name_Enter); |
| Set_Has_Qualified_Name (Ent); |
| |
| if Debug_Flag_BB then |
| Write_Str ("*** "); |
| Write_Name (Save_Chars); |
| Write_Str (" qualified as "); |
| Write_Name (Chars (Ent)); |
| Write_Eol; |
| end if; |
| end Qualify_Entity_Name; |
| |
| -------------------------- |
| -- Qualify_Entity_Names -- |
| -------------------------- |
| |
| procedure Qualify_Entity_Names (N : Node_Id) is |
| begin |
| Name_Qualify_Units.Append (N); |
| end Qualify_Entity_Names; |
| |
| ------------------- |
| -- Reset_Buffers -- |
| ------------------- |
| |
| procedure Reset_Buffers is |
| begin |
| Name_Len := 0; |
| Homonym_Len := 0; |
| end Reset_Buffers; |
| |
| -------------------- |
| -- Strip_Suffixes -- |
| -------------------- |
| |
| procedure Strip_Suffixes (BNPE_Suffix_Found : in out Boolean) is |
| SL : Natural; |
| |
| pragma Warnings (Off, BNPE_Suffix_Found); |
| -- Since this procedure only ever sets the flag |
| |
| begin |
| -- Search for and strip BNPE suffix |
| |
| for J in reverse 2 .. Name_Len loop |
| if Name_Buffer (J) = 'X' then |
| Name_Len := J - 1; |
| BNPE_Suffix_Found := True; |
| exit; |
| end if; |
| |
| exit when Name_Buffer (J) /= 'b' and then Name_Buffer (J) /= 'n'; |
| end loop; |
| |
| -- Search for and strip homonym numbers suffix |
| |
| for J in reverse 2 .. Name_Len - 2 loop |
| if Name_Buffer (J) = '_' |
| and then Name_Buffer (J + 1) = '_' |
| then |
| if Name_Buffer (J + 2) in '0' .. '9' then |
| if Homonym_Len > 0 then |
| Homonym_Len := Homonym_Len + 1; |
| Homonym_Numbers (Homonym_Len) := '-'; |
| end if; |
| |
| SL := Name_Len - (J + 1); |
| |
| Homonym_Numbers (Homonym_Len + 1 .. Homonym_Len + SL) := |
| Name_Buffer (J + 2 .. Name_Len); |
| Name_Len := J - 1; |
| Homonym_Len := Homonym_Len + SL; |
| end if; |
| |
| exit; |
| end if; |
| end loop; |
| end Strip_Suffixes; |
| |
| end Exp_Dbug; |
