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{
Copyright (c) 1998-2002 by Florian Klaempfl
This unit implements some support functions for the parsing of directives
and option strings
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 dirparse;
{$i fpcdefs.inc}
interface
uses
globtype,
systems;
function UpdateAlignmentStr(s:string;var a:talignmentinfo):boolean;
function UpdateOptimizerStr(s:string;var a:toptimizerswitches):boolean;
function UpdateWpoStr(s: string; var a: twpoptimizerswitches): boolean;
function UpdateDebugStr(s:string;var a:tdebugswitches):boolean;
function UpdateTargetSwitchStr(s: string; var a: ttargetswitches; global: boolean): boolean;
implementation
uses
globals,
cutils,
symtable;
function UpdateAlignmentStr(s:string;var a:talignmentinfo):boolean;
var
tok : string;
vstr : string;
l : longint;
code : integer;
b : talignmentinfo;
begin
UpdateAlignmentStr:=true;
uppervar(s);
fillchar(b,sizeof(b),0);
repeat
tok:=GetToken(s,'=');
if tok='' then
break;
vstr:=GetToken(s,',');
val(vstr,l,code);
if tok='PROC' then
b.procalign:=l
else if tok='JUMP' then
b.jumpalign:=l
else if tok='LOOP' then
b.loopalign:=l
else if tok='CONSTMIN' then
begin
b.constalignmin:=l;
if l>b.constalignmax then
b.constalignmax:=l;
end
else if tok='CONSTMAX' then
b.constalignmax:=l
else if tok='VARMIN' then
begin
b.varalignmin:=l;
if l>b.varalignmax then
b.varalignmax:=l;
end
else if tok='VARMAX' then
b.varalignmax:=l
else if tok='LOCALMIN' then
begin
b.localalignmin:=l;
if l>b.localalignmax then
b.localalignmax:=l;
end
else if tok='LOCALMAX' then
b.localalignmax:=l
else if tok='RECORDMIN' then
begin
b.recordalignmin:=l;
if l>b.recordalignmax then
b.recordalignmax:=l;
end
else if tok='RECORDMAX' then
b.recordalignmax:=l
else { Error }
UpdateAlignmentStr:=false;
until false;
Result:=Result and UpdateAlignment(a,b);
end;
function UpdateOptimizerStr(s:string;var a:toptimizerswitches):boolean;
var
tok : string;
doset,
found : boolean;
opt : toptimizerswitch;
begin
result:=true;
uppervar(s);
repeat
tok:=GetToken(s,',');
if tok='' then
break;
if Copy(tok,1,2)='NO' then
begin
delete(tok,1,2);
doset:=false;
end
else
doset:=true;
found:=false;
for opt:=low(toptimizerswitch) to high(toptimizerswitch) do
begin
if OptimizerSwitchStr[opt]=tok then
begin
found:=true;
break;
end;
end;
if found then
begin
{$ifdef llvm}
{ -Ooregvar is not supported, llvm will take care of that }
if opt<>cs_opt_regvar then
{$endif llvm}
if doset then
include(a,opt)
else
exclude(a,opt);
end
else
result:=false;
until false;
end;
function UpdateWpoStr(s: string; var a: twpoptimizerswitches): boolean;
var
tok : string;
doset,
found : boolean;
opt : twpoptimizerswitch;
begin
result:=true;
uppervar(s);
repeat
tok:=GetToken(s,',');
if tok='' then
break;
if Copy(tok,1,2)='NO' then
begin
delete(tok,1,2);
doset:=false;
end
else
doset:=true;
found:=false;
if (tok = 'ALL') then
begin
for opt:=low(twpoptimizerswitch) to high(twpoptimizerswitch) do
if doset then
include(a,opt)
else
exclude(a,opt);
end
else
begin
for opt:=low(twpoptimizerswitch) to high(twpoptimizerswitch) do
begin
if WPOptimizerSwitchStr[opt]=tok then
begin
found:=true;
break;
end;
end;
if found then
begin
if doset then
include(a,opt)
else
exclude(a,opt);
end
else
result:=false;
end;
until false;
end;
function UpdateDebugStr(s:string;var a:tdebugswitches):boolean;
var
tok : string;
doset,
found : boolean;
opt : tdebugswitch;
begin
result:=true;
uppervar(s);
repeat
tok:=GetToken(s,',');
if tok='' then
break;
if Copy(tok,1,2)='NO' then
begin
delete(tok,1,2);
doset:=false;
end
else
doset:=true;
found:=false;
for opt:=low(tdebugswitch) to high(tdebugswitch) do
begin
if DebugSwitchStr[opt]=tok then
begin
found:=true;
break;
end;
end;
if found then
begin
if doset then
include(a,opt)
else
exclude(a,opt);
end
else
result:=false;
until false;
end;
function UpdateTargetSwitchStr(s: string; var a: ttargetswitches; global: boolean): boolean;
var
tok,
value : string;
setstr: string[2];
equalspos: longint;
doset,
gotvalue,
found : boolean;
opt : ttargetswitch;
begin
result:=true;
value:='';
repeat
tok:=GetToken(s,',');
if tok='' then
break;
setstr:=upper(copy(tok,length(tok),1));
if setstr='-' then
begin
setlength(tok,length(tok)-1);
doset:=false;
end
else
doset:=true;
{ value specified? }
gotvalue:=false;
equalspos:=pos('=',tok);
if equalspos<>0 then
begin
value:=copy(tok,equalspos+1,length(tok));
delete(tok,equalspos,length(tok));
gotvalue:=true;
end;
found:=false;
uppervar(tok);
for opt:=low(ttargetswitch) to high(ttargetswitch) do
begin
if TargetSwitchStr[opt].name=tok then
begin
found:=true;
break;
end;
end;
if found then
begin
if not global and
TargetSwitchStr[opt].isglobal then
result:=false
else if not TargetSwitchStr[opt].hasvalue then
begin
if gotvalue then
result:=false;
if (TargetSwitchStr[opt].define<>'') and (doset xor (opt in a)) then
if doset then
def_system_macro(TargetSwitchStr[opt].define)
else
undef_system_macro(TargetSwitchStr[opt].define);
if doset then
include(a,opt)
else
exclude(a,opt)
end
else
begin
if not gotvalue or
not doset then
result:=false
else
begin
case opt of
ts_auto_getter_prefix:
prop_auto_getter_prefix:=value;
ts_auto_setter_predix:
prop_auto_setter_prefix:=value;
else
begin
writeln('Internalerror 2012053001');
halt(1);
end;
end;
end;
end;
end
else
result:=false;
until false;
end;
end.
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