mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 23:49:28 +01:00
133 lines
3.9 KiB
ObjectPascal
133 lines
3.9 KiB
ObjectPascal
{
|
|
$Id$
|
|
Copyright (c) 1998-2002 by Florian Klaempfl
|
|
|
|
This unit provides some help routines for symbol handling
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT 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
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
****************************************************************************
|
|
}
|
|
unit symutil;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
symbase,symtype,symsym,cclasses;
|
|
|
|
function is_funcret_sym(p:tsymentry):boolean;
|
|
|
|
{ returns true, if sym needs an entry in the proplist of a class rtti }
|
|
function needs_prop_entry(sym : tsym) : boolean;
|
|
|
|
function equal_constsym(sym1,sym2:tconstsym):boolean;
|
|
|
|
procedure count_locals(p:tnamedindexitem;arg:pointer);
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype,cpuinfo,procinfo,
|
|
symconst;
|
|
|
|
|
|
function is_funcret_sym(p:tsymentry):boolean;
|
|
begin
|
|
is_funcret_sym:=(p.typ in [absolutevarsym,localvarsym,paravarsym]) and
|
|
(vo_is_funcret in tabstractvarsym(p).varoptions);
|
|
end;
|
|
|
|
|
|
function needs_prop_entry(sym : tsym) : boolean;
|
|
|
|
begin
|
|
needs_prop_entry:=(sp_published in tsym(sym).symoptions) and
|
|
(sym.typ in [propertysym,fieldvarsym]);
|
|
end;
|
|
|
|
|
|
function equal_constsym(sym1,sym2:tconstsym):boolean;
|
|
var
|
|
p1,p2,pend : pchar;
|
|
begin
|
|
equal_constsym:=false;
|
|
if sym1.consttyp<>sym2.consttyp then
|
|
exit;
|
|
case sym1.consttyp of
|
|
constord :
|
|
equal_constsym:=(sym1.value.valueord=sym2.value.valueord);
|
|
constpointer :
|
|
equal_constsym:=(sym1.value.valueordptr=sym2.value.valueordptr);
|
|
conststring,constresourcestring :
|
|
begin
|
|
if sym1.value.len=sym2.value.len then
|
|
begin
|
|
p1:=pchar(sym1.value.valueptr);
|
|
p2:=pchar(sym2.value.valueptr);
|
|
pend:=p1+sym1.value.len;
|
|
while (p1<pend) do
|
|
begin
|
|
if p1^<>p2^ then
|
|
break;
|
|
inc(p1);
|
|
inc(p2);
|
|
end;
|
|
if (p1=pend) then
|
|
equal_constsym:=true;
|
|
end;
|
|
end;
|
|
constreal :
|
|
equal_constsym:=(pbestreal(sym1.value.valueptr)^=pbestreal(sym2.value.valueptr)^);
|
|
constset :
|
|
equal_constsym:=(pnormalset(sym1.value.valueptr)^=pnormalset(sym2.value.valueptr)^);
|
|
constnil :
|
|
equal_constsym:=true;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure count_locals(p:tnamedindexitem;arg:pointer);
|
|
begin
|
|
{ Count only varsyms, but ignore the funcretsym }
|
|
if (tsym(p).typ in [localvarsym,paravarsym]) and
|
|
(tsym(p)<>current_procinfo.procdef.funcretsym) and
|
|
(not(vo_is_parentfp in tabstractvarsym(p).varoptions) or
|
|
(tstoredsym(p).refs>0)) then
|
|
inc(plongint(arg)^);
|
|
end;
|
|
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.7 2004-11-08 22:09:59 peter
|
|
* tvarsym splitted
|
|
|
|
Revision 1.6 2004/10/31 21:45:03 peter
|
|
* generic tlocation
|
|
* move tlocation to cgutils
|
|
|
|
Revision 1.5 2004/06/20 08:55:30 florian
|
|
* logs truncated
|
|
|
|
Revision 1.4 2004/03/23 22:34:50 peter
|
|
* constants ordinals now always have a type assigned
|
|
* integer constants have the smallest type, unsigned prefered over
|
|
signed
|
|
|
|
}
|