1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
9 -- Copyright (C) 1992-2005, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 with Atree
; use Atree
;
35 with Casing
; use Casing
;
36 with Einfo
; use Einfo
;
39 with Namet
; use Namet
;
40 with Nlists
; use Nlists
;
41 with Output
; use Output
;
42 with Sinfo
; use Sinfo
;
43 with Sinput
; use Sinput
;
51 function Get_Body_Name
(N
: Unit_Name_Type
) return Unit_Name_Type
is
55 pragma Assert
(Name_Len
> 2
56 and then Name_Buffer
(Name_Len
- 1) = '%'
57 and then Name_Buffer
(Name_Len
) = 's');
59 Name_Buffer
(Name_Len
) := 'b';
63 -----------------------------------
64 -- Get_External_Unit_Name_String --
65 -----------------------------------
67 procedure Get_External_Unit_Name_String
(N
: Unit_Name_Type
) is
72 -- Get unit name and eliminate trailing %s or %b
75 Name_Len
:= Name_Len
- 2;
77 -- Find number of components
80 for J
in 1 .. Name_Len
loop
81 if Name_Buffer
(J
) = '.' then
86 -- If simple name, nothing to do
92 -- If name has multiple components, replace dots by double underscore
94 Newlen
:= Name_Len
+ Pcount
;
96 for J
in reverse 1 .. Name_Len
loop
97 if Name_Buffer
(J
) = '.' then
98 Name_Buffer
(Newlen
) := '_';
99 Name_Buffer
(Newlen
- 1) := '_';
100 Newlen
:= Newlen
- 2;
103 Name_Buffer
(Newlen
) := Name_Buffer
(J
);
104 Newlen
:= Newlen
- 1;
108 Name_Len
:= Name_Len
+ Pcount
;
109 end Get_External_Unit_Name_String
;
111 --------------------------
112 -- Get_Parent_Body_Name --
113 --------------------------
115 function Get_Parent_Body_Name
(N
: Unit_Name_Type
) return Unit_Name_Type
is
119 while Name_Buffer
(Name_Len
) /= '.' loop
120 pragma Assert
(Name_Len
> 1); -- not a child or subunit name
121 Name_Len
:= Name_Len
- 1;
124 Name_Buffer
(Name_Len
) := '%';
125 Name_Len
:= Name_Len
+ 1;
126 Name_Buffer
(Name_Len
) := 'b';
129 end Get_Parent_Body_Name
;
131 --------------------------
132 -- Get_Parent_Spec_Name --
133 --------------------------
135 function Get_Parent_Spec_Name
(N
: Unit_Name_Type
) return Unit_Name_Type
is
139 while Name_Buffer
(Name_Len
) /= '.' loop
141 return No_Name
; -- not a child or subunit name
143 Name_Len
:= Name_Len
- 1;
147 Name_Buffer
(Name_Len
) := '%';
148 Name_Len
:= Name_Len
+ 1;
149 Name_Buffer
(Name_Len
) := 's';
152 end Get_Parent_Spec_Name
;
158 function Get_Spec_Name
(N
: Unit_Name_Type
) return Unit_Name_Type
is
162 pragma Assert
(Name_Len
> 2
163 and then Name_Buffer
(Name_Len
- 1) = '%'
164 and then Name_Buffer
(Name_Len
) = 'b');
166 Name_Buffer
(Name_Len
) := 's';
174 function Get_Unit_Name
(N
: Node_Id
) return Unit_Name_Type
is
176 Unit_Name_Buffer
: String (1 .. Hostparm
.Max_Name_Length
);
177 -- Buffer used to build name of unit. Note that we cannot use the
178 -- Name_Buffer in package Name_Table because we use it to read
181 Unit_Name_Length
: Natural := 0;
182 -- Length of name stored in Unit_Name_Buffer
187 procedure Add_Char
(C
: Character);
188 -- Add a single character to stored unit name
190 procedure Add_Name
(Name
: Name_Id
);
191 -- Add the characters of a names table entry to stored unit name
193 procedure Add_Node_Name
(Node
: Node_Id
);
194 -- Recursive procedure adds characters associated with Node
196 function Get_Parent
(Node
: Node_Id
) return Node_Id
;
197 -- Get parent compilation unit of a stub
203 procedure Add_Char
(C
: Character) is
205 -- Should really check for max length exceeded here???
206 Unit_Name_Length
:= Unit_Name_Length
+ 1;
207 Unit_Name_Buffer
(Unit_Name_Length
) := C
;
214 procedure Add_Name
(Name
: Name_Id
) is
216 Get_Name_String
(Name
);
218 for J
in 1 .. Name_Len
loop
219 Add_Char
(Name_Buffer
(J
));
227 procedure Add_Node_Name
(Node
: Node_Id
) is
228 Kind
: constant Node_Kind
:= Nkind
(Node
);
231 -- Just ignore an error node (someone else will give a message)
236 -- Otherwise see what kind of node we have
242 N_Defining_Identifier |
243 N_Defining_Operator_Symbol
=>
245 -- Note: it is of course an error to have a defining
246 -- operator symbol at this point, but this is not where
247 -- the error is signalled, so we handle it nicely here!
249 Add_Name
(Chars
(Node
));
251 when N_Defining_Program_Unit_Name
=>
252 Add_Node_Name
(Name
(Node
));
254 Add_Node_Name
(Defining_Identifier
(Node
));
256 when N_Selected_Component |
258 Add_Node_Name
(Prefix
(Node
));
260 Add_Node_Name
(Selector_Name
(Node
));
262 when N_Subprogram_Specification |
263 N_Package_Specification
=>
264 Add_Node_Name
(Defining_Unit_Name
(Node
));
266 when N_Subprogram_Body |
267 N_Subprogram_Declaration |
268 N_Package_Declaration |
269 N_Generic_Declaration
=>
270 Add_Node_Name
(Specification
(Node
));
272 when N_Generic_Instantiation
=>
273 Add_Node_Name
(Defining_Unit_Name
(Node
));
275 when N_Package_Body
=>
276 Add_Node_Name
(Defining_Unit_Name
(Node
));
280 Add_Node_Name
(Defining_Identifier
(Node
));
282 when N_Package_Renaming_Declaration
=>
283 Add_Node_Name
(Defining_Unit_Name
(Node
));
285 when N_Subprogram_Renaming_Declaration
=>
286 Add_Node_Name
(Specification
(Node
));
288 when N_Generic_Renaming_Declaration
=>
289 Add_Node_Name
(Defining_Unit_Name
(Node
));
291 when N_Subprogram_Body_Stub
=>
292 Add_Node_Name
(Get_Parent
(Node
));
294 Add_Node_Name
(Specification
(Node
));
296 when N_Compilation_Unit
=>
297 Add_Node_Name
(Unit
(Node
));
299 when N_Package_Body_Stub
=>
300 Add_Node_Name
(Get_Parent
(Node
));
302 Add_Node_Name
(Defining_Identifier
(Node
));
304 when N_Task_Body_Stub |
305 N_Protected_Body_Stub
=>
306 Add_Node_Name
(Get_Parent
(Node
));
308 Add_Node_Name
(Defining_Identifier
(Node
));
311 Add_Node_Name
(Name
(Node
));
313 Add_Node_Name
(Proper_Body
(Node
));
315 when N_With_Clause
=>
316 Add_Node_Name
(Name
(Node
));
319 Add_Node_Name
(Expression
(First
320 (Pragma_Argument_Associations
(Node
))));
322 -- Tasks and protected stuff appear only in an error context,
323 -- but the error has been posted elsewhere, so we deal nicely
324 -- with these error situations here, and produce a reasonable
325 -- unit name using the defining identifier.
327 when N_Task_Type_Declaration |
328 N_Single_Task_Declaration |
329 N_Protected_Type_Declaration |
330 N_Single_Protected_Declaration
=>
331 Add_Node_Name
(Defining_Identifier
(Node
));
344 function Get_Parent
(Node
: Node_Id
) return Node_Id
is
348 while Nkind
(N
) /= N_Compilation_Unit
loop
355 -------------------------------------------
356 -- Start of Processing for Get_Unit_Name --
357 -------------------------------------------
362 -- If we have Defining_Identifier, find the associated unit node
364 if Nkind
(Node
) = N_Defining_Identifier
then
365 Node
:= Declaration_Node
(Node
);
367 -- If an expanded name, it is an already analyzed child unit, find
370 elsif Nkind
(Node
) = N_Expanded_Name
then
371 Node
:= Declaration_Node
(Entity
(Node
));
374 if Nkind
(Node
) = N_Package_Specification
375 or else Nkind
(Node
) in N_Subprogram_Specification
377 Node
:= Parent
(Node
);
380 -- Node points to the unit, so get its name and add proper suffix
382 Add_Node_Name
(Node
);
386 when N_Generic_Declaration |
387 N_Subprogram_Declaration |
388 N_Package_Declaration |
391 N_Generic_Instantiation |
392 N_Package_Renaming_Declaration |
393 N_Subprogram_Renaming_Declaration |
394 N_Generic_Renaming_Declaration |
395 N_Single_Task_Declaration |
396 N_Single_Protected_Declaration |
397 N_Task_Type_Declaration |
398 N_Protected_Type_Declaration
=>
402 when N_Subprogram_Body |
409 N_Selected_Component
=>
417 Name_Buffer
(1 .. Unit_Name_Length
) :=
418 Unit_Name_Buffer
(1 .. Unit_Name_Length
);
419 Name_Len
:= Unit_Name_Length
;
424 --------------------------
425 -- Get_Unit_Name_String --
426 --------------------------
428 procedure Get_Unit_Name_String
(N
: Unit_Name_Type
) is
429 Unit_Is_Body
: Boolean;
432 Get_Decoded_Name_String
(N
);
433 Unit_Is_Body
:= Name_Buffer
(Name_Len
) = 'b';
434 Set_Casing
(Identifier_Casing
(Source_Index
(Main_Unit
)), Mixed_Case
);
436 -- A special fudge, normally we don't have operator symbols present,
437 -- since it is always an error to do so. However, if we do, at this
438 -- stage it has the form:
442 -- and the %s or %b has already been eliminated so put 2 chars back
444 if Name_Buffer
(1) = '"' then
445 Name_Len
:= Name_Len
+ 2;
448 -- Now adjust the %s or %b to (spec) or (body)
451 Name_Buffer
(Name_Len
- 1 .. Name_Len
+ 5) := " (body)";
453 Name_Buffer
(Name_Len
- 1 .. Name_Len
+ 5) := " (spec)";
456 for J
in 1 .. Name_Len
loop
457 if Name_Buffer
(J
) = '-' then
458 Name_Buffer
(J
) := '.';
462 Name_Len
:= Name_Len
+ (7 - 2);
463 end Get_Unit_Name_String
;
469 function Is_Body_Name
(N
: Unit_Name_Type
) return Boolean is
473 and then Name_Buffer
(Name_Len
- 1) = '%'
474 and then Name_Buffer
(Name_Len
) = 'b';
481 function Is_Child_Name
(N
: Unit_Name_Type
) return Boolean is
488 while Name_Buffer
(J
) /= '.' loop
490 return False; -- not a child or subunit name
503 function Is_Spec_Name
(N
: Unit_Name_Type
) return Boolean is
507 and then Name_Buffer
(Name_Len
- 1) = '%'
508 and then Name_Buffer
(Name_Len
) = 's';
511 -----------------------
512 -- Name_To_Unit_Name --
513 -----------------------
515 function Name_To_Unit_Name
(N
: Name_Id
) return Unit_Name_Type
is
518 Name_Buffer
(Name_Len
+ 1) := '%';
519 Name_Buffer
(Name_Len
+ 2) := 's';
520 Name_Len
:= Name_Len
+ 2;
522 end Name_To_Unit_Name
;
529 (Old
: Unit_Name_Type
;
530 Newp
: Unit_Name_Type
) return Unit_Name_Type
535 Get_Name_String
(Old
);
538 Child
: constant String := Name_Buffer
(1 .. Name_Len
);
541 Get_Name_String
(Newp
);
542 Name_Len
:= Name_Len
- 2;
545 while Child
(P
) /= '.' loop
549 while P
<= Child
'Last loop
550 Name_Len
:= Name_Len
+ 1;
551 Name_Buffer
(Name_Len
) := Child
(P
);
563 function Uname_Ge
(Left
, Right
: Unit_Name_Type
) return Boolean is
565 return Left
= Right
or else Uname_Gt
(Left
, Right
);
572 function Uname_Gt
(Left
, Right
: Unit_Name_Type
) return Boolean is
574 return Left
/= Right
and then not Uname_Lt
(Left
, Right
);
581 function Uname_Le
(Left
, Right
: Unit_Name_Type
) return Boolean is
583 return Left
= Right
or else Uname_Lt
(Left
, Right
);
590 function Uname_Lt
(Left
, Right
: Unit_Name_Type
) return Boolean is
591 Left_Name
: String (1 .. Hostparm
.Max_Name_Length
);
592 Left_Length
: Natural;
593 Right_Name
: String renames Name_Buffer
;
594 Right_Length
: Natural renames Name_Len
;
598 pragma Warnings
(Off
, Right_Length
);
599 -- Suppress warnings on Right_Length, used in pragma Assert
605 Get_Name_String
(Left
);
606 Left_Name
(1 .. Name_Len
+ 1) := Name_Buffer
(1 .. Name_Len
+ 1);
607 Left_Length
:= Name_Len
;
608 Get_Name_String
(Right
);
612 exit when Left_Name
(J
) = '%';
614 if Right_Name
(J
) = '%' then
615 return False; -- left name is longer
618 pragma Assert
(J
<= Left_Length
and then J
<= Right_Length
);
620 if Left_Name
(J
) /= Right_Name
(J
) then
621 return Left_Name
(J
) < Right_Name
(J
); -- parent names different
627 -- Come here pointing to % in left name
629 if Right_Name
(J
) /= '%' then
630 return True; -- right name is longer
633 -- Here the parent names are the same and specs sort low. If neither is
634 -- a spec, then we are comparing the same name and we want a result of
635 -- False in any case.
637 return Left_Name
(J
+ 1) = 's';
640 ---------------------
641 -- Write_Unit_Name --
642 ---------------------
644 procedure Write_Unit_Name
(N
: Unit_Name_Type
) is
646 Get_Unit_Name_String
(N
);
647 Write_Str
(Name_Buffer
(1 .. Name_Len
));