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fpc/compiler/scandir.pas

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{
$Id$
Copyright (c) 1998-2000 by Peter Vreman
This unit implements directive parsing for the scanner
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 scandir;
{$i defines.inc}
interface
procedure InitScannerDirectives;
implementation
uses
dos,
cutils,
version,globtype,globals,systems,
verbose,comphook,
scanner,switches,
finput,fmodule;
{*****************************************************************************
Helpers
*****************************************************************************}
procedure do_delphiswitch(sw:char);
var
state : char;
begin
{ c contains the next char, a + or - would be fine }
state:=current_scanner.readstate;
if state in ['-','+'] then
HandleSwitch(sw,state);
end;
procedure do_setverbose(flag:char);
var
state : char;
begin
{ support ON/OFF }
state:=current_scanner.ReadState;
SetVerbosity(flag+state);
end;
procedure do_moduleswitch(sw:tmoduleswitch);
var
state : char;
begin
state:=current_scanner.readstate;
if (sw<>cs_modulenone) and (state in ['-','+']) then
begin
if state='-' then
exclude(aktmoduleswitches,sw)
else
include(aktmoduleswitches,sw);
end;
end;
procedure do_localswitch(sw:tlocalswitch);
var
state : char;
begin
state:=current_scanner.readstate;
if (sw<>cs_localnone) and (state in ['-','+']) then
begin
if not localswitcheschanged then
nextaktlocalswitches:=aktlocalswitches;
if state='-' then
exclude(nextaktlocalswitches,sw)
else
include(nextaktlocalswitches,sw);
localswitcheschanged:=true;
end;
end;
procedure do_message(w:integer);
begin
current_scanner.skipspace;
Message1(w,current_scanner.readcomment);
end;
{*****************************************************************************
Directive Callbacks
*****************************************************************************}
procedure dir_align;
begin
do_delphiswitch('A');
end;
procedure dir_asmmode;
var
s : string;
begin
current_scanner.skipspace;
s:=current_scanner.readid;
If Inside_asm_statement then
Message1(scan_w_no_asm_reader_switch_inside_asm,s);
if s='DEFAULT' then
aktasmmode:=initasmmode
else
if not set_asmmode_by_string(s,aktasmmode) then
Message1(scan_w_unsupported_asmmode_specifier,s);
end;
procedure dir_apptype;
var
hs : string;
begin
if (target_info.target<>target_i386_win32)
and (target_info.target<>target_i386_os2) then
Message(scan_w_app_type_not_support);
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
hs:=current_scanner.readid;
if hs='GUI' then
apptype:=app_gui
else if hs='CONSOLE' then
apptype:=app_cui
else if (hs='FS') and (target_info.target=target_i386_os2) then
apptype:=app_fs
else
Message1(scan_w_unsupported_app_type,hs);
end;
end;
procedure dir_assertions;
begin
do_delphiswitch('C');
end;
procedure dir_booleval;
begin
do_delphiswitch('B');
end;
procedure dir_debuginfo;
begin
do_delphiswitch('D');
end;
procedure dir_description;
begin
if not (target_info.target in [target_i386_os2,target_i386_win32,target_i386_netware]) then
Message(scan_w_decription_not_support);
{ change description global var in all cases }
{ it not used but in win32, os2 and netware }
current_scanner.skipspace;
description:=current_scanner.readcomment;
end;
procedure dir_error;
begin
do_message(scan_e_user_defined);
end;
procedure dir_extendedsyntax;
begin
do_delphiswitch('X');
end;
procedure dir_fatal;
begin
do_message(scan_f_user_defined);
end;
procedure dir_goto;
begin
do_moduleswitch(cs_support_goto);
end;
procedure dir_hint;
begin
do_message(scan_h_user_defined);
end;
procedure dir_hints;
begin
do_setverbose('H');
end;
procedure dir_includepath;
begin
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
current_module.localincludesearchpath.AddPath(current_scanner.readcomment,false);
end;
end;
procedure dir_info;
begin
do_message(scan_i_user_defined);
end;
procedure dir_inline;
begin
do_moduleswitch(cs_support_inline);
end;
procedure dir_interfaces;
var
hs : string;
begin
{corba/com/default}
current_scanner.skipspace;
hs:=current_scanner.readid;
if (hs='CORBA') then
aktinterfacetype:=it_interfacecorba
else if (hs='COM') then
aktinterfacetype:=it_interfacecom
else if (hs='DEFAULT') then
aktinterfacetype:=initinterfacetype
else
Message(scan_e_invalid_interface_type);
end;
procedure dir_iochecks;
begin
do_delphiswitch('I');
end;
procedure dir_librarypath;
begin
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
current_module.locallibrarysearchpath.AddPath(current_scanner.readcomment,false);
end;
end;
procedure dir_link;
var
s : string;
begin
current_scanner.skipspace;
s:=AddExtension(FixFileName(current_scanner.readcomment),target_info.objext);
current_module.linkotherofiles.add(s,link_allways);
end;
procedure dir_linklib;
type
tLinkMode=(lm_shared,lm_static);
var
s : string;
quote : char;
libname,
linkmodestr : string;
p : longint;
linkMode : tLinkMode;
begin
current_scanner.skipspace;
s:=current_scanner.readcomment;
p:=pos(',',s);
if p=0 then
begin
libname:=TrimSpace(s);
linkmodeStr:='';
end
else
begin
libname:=TrimSpace(copy(s,1,p-1));
linkmodeStr:=Upper(TrimSpace(copy(s,p+1,255)));
end;
if (libname='') or (libname='''''') or (libname='""') then
exit;
{ get linkmode, default is shared linking }
if linkModeStr='STATIC' then
linkmode:=lm_static
else if (LinkModeStr='SHARED') or (LinkModeStr='') then
linkmode:=lm_shared
else
begin
Comment(V_Error,'Wrong link mode specified: "'+Linkmodestr+'"');
exit;
end;
{ create library name }
if libname[1] in ['''','"'] then
begin
quote:=libname[1];
Delete(libname,1,1);
p:=pos(quote,libname);
if p>0 then
Delete(libname,p,1);
end;
{ add to the list of libraries to link }
if linkMode=lm_static then
current_module.linkOtherStaticLibs.add(FixFileName(libname),link_allways)
else
current_module.linkOtherSharedLibs.add(FixFileName(libname),link_allways);
end;
procedure dir_localsymbols;
begin
do_delphiswitch('L');
end;
procedure dir_longstrings;
begin
do_delphiswitch('H');
end;
procedure dir_macro;
begin
do_moduleswitch(cs_support_macro);
end;
procedure dir_maxfpuregisters;
var
l : integer;
hs : string;
begin
current_scanner.skipspace;
if not(c in ['0'..'9']) then
begin
hs:=current_scanner.readid;
if (hs='NORMAL') or (hs='DEFAULT') then
aktmaxfpuregisters:=-1
else
Message(scan_e_invalid_maxfpureg_value);
end
else
begin
l:=current_scanner.readval;
case l of
0..8:
aktmaxfpuregisters:=l;
else
Message(scan_e_invalid_maxfpureg_value);
end;
end;
end;
procedure dir_memory;
var
l : longint;
begin
current_scanner.skipspace;
l:=current_scanner.readval;
if l>1024 then
stacksize:=l;
current_scanner.skipspace;
if c=',' then
begin
current_scanner.readchar;
current_scanner.skipspace;
l:=current_scanner.readval;
if l>1024 then
heapsize:=l;
end;
if c=',' then
begin
current_scanner.readchar;
current_scanner.skipspace;
l:=current_scanner.readval;
{ Ignore this value, because the limit is set by the OS
info and shouldn't be changed by the user (PFV) }
end;
end;
procedure dir_message;
begin
do_message(scan_i_user_defined);
end;
procedure dir_mode;
begin
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
current_scanner.readstring;
if not SetCompileMode(pattern,false) then
Message1(scan_w_illegal_switch,pattern);
end;
end;
procedure dir_mmx;
begin
do_localswitch(cs_mmx);
end;
procedure dir_note;
begin
do_message(scan_n_user_defined);
end;
procedure dir_notes;
begin
do_setverbose('N');
end;
procedure dir_objectpath;
begin
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
current_module.localobjectsearchpath.AddPath(current_scanner.readcomment,false);
end;
end;
procedure dir_openstrings;
begin
do_delphiswitch('P');
end;
procedure dir_output_format;
begin
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
if set_target_asm_by_string(current_scanner.readid) then
aktoutputformat:=target_asm.id
else
Message1(scan_w_illegal_switch,pattern);
end;
end;
procedure dir_overflowchecks;
begin
do_delphiswitch('Q');
end;
procedure dir_packenum;
var
hs : string;
begin
current_scanner.skipspace;
if not(c in ['0'..'9']) then
begin
hs:=current_scanner.readid;
if (hs='NORMAL') or (hs='DEFAULT') then
aktpackenum:=4
else
Message(scan_w_only_pack_enum);
end
else
begin
case current_scanner.readval of
1 : aktpackenum:=1;
2 : aktpackenum:=2;
4 : aktpackenum:=4;
else
Message(scan_w_only_pack_enum);
end;
end;
end;
procedure dir_packrecords;
var
hs : string;
begin
current_scanner.skipspace;
if not(c in ['0'..'9']) then
begin
hs:=current_scanner.readid;
if (hs='C') then
aktpackrecords:=packrecord_C
else
if (hs='NORMAL') or (hs='DEFAULT') then
aktpackrecords:=packrecord_2
else
Message(scan_w_only_pack_records);
end
else
begin
case current_scanner.readval of
1 : aktpackrecords:=packrecord_1;
2 : aktpackrecords:=packrecord_2;
4 : aktpackrecords:=packrecord_4;
8 : aktpackrecords:=packrecord_8;
16 : aktpackrecords:=packrecord_16;
32 : aktpackrecords:=packrecord_32;
else
Message(scan_w_only_pack_records);
end;
end;
end;
{$ifdef testvarsets}
procedure dir_packset;
var
hs : string;
begin
current_scanner.skipspace;
if not(c in ['1','2','4']) then
begin
hs:=current_scanner.readid;
if (hs='FIXED') or ((hs='DEFAULT') OR (hs='NORMAL')) then
aktsetalloc:=0 {Fixed mode, sets are 4 or 32 bytes}
else
Message(scan_w_only_packset);
end
else
begin
case current_scanner.readval of
1 : aktsetalloc:=1;
2 : aktsetalloc:=2;
4 : aktsetalloc:=4;
else
Message(scan_w_only_packset);
end;
end;
end;
{$ENDIF}
procedure dir_rangechecks;
begin
do_delphiswitch('R');
end;
procedure dir_referenceinfo;
begin
do_delphiswitch('Y');
end;
procedure dir_resource;
var
s : string;
begin
current_scanner.skipspace;
s:=current_scanner.readcomment;
{ replace * with current module name.
This should always be defined. }
if s[1]='*' then
if Assigned(Current_Module) then
begin
delete(S,1,1);
insert(lower(current_module.modulename^),S,1);
end;
s:=AddExtension(FixFileName(s),target_info.resext);
if target_info.res<>res_none then
if (target_info.res = res_emxbind) and
not (Current_module.ResourceFiles.Empty) then
Message(scan_w_only_one_resourcefile_supported)
else
current_module.resourcefiles.insert(FixFileName(s))
else
Message(scan_e_resourcefiles_not_supported);
end;
procedure dir_saturation;
begin
do_localswitch(cs_mmx_saturation);
end;
procedure dir_smartlink;
begin
do_moduleswitch(cs_create_smart);
end;
procedure dir_stackframes;
begin
do_delphiswitch('W');
end;
procedure dir_static;
begin
do_moduleswitch(cs_static_keyword);
end;
procedure dir_stop;
begin
do_message(scan_f_user_defined);
end;
procedure dir_typedaddress;
begin
do_delphiswitch('T');
end;
procedure dir_typeinfo;
begin
do_delphiswitch('M');
end;
procedure dir_unitpath;
begin
if not current_module.in_global then
Message(scan_w_switch_is_global)
else
begin
current_scanner.skipspace;
current_module.localunitsearchpath.AddPath(current_scanner.readcomment,false);
end;
end;
procedure dir_varstringchecks;
begin
do_delphiswitch('V');
end;
procedure dir_version;
var
major, minor, revision : longint;
error : integer;
begin
if not (target_info.target in [target_i386_os2,target_i386_win32,target_i386_netware]) then // AD
begin
Message(scan_n_version_not_support);
exit;
end;
if (compile_level<>1) then
Message(scan_n_only_exe_version)
else
begin
{ change description global var in all cases }
{ it not used but in win32, os2 and netware }
current_scanner.skipspace;
{ we should only accept Major.Minor format for win32 and os2 }
current_scanner.readnumber;
major:=0;
minor:=0;
revision:=0;
valint(pattern,major,error);
if error<>0 then
begin
Message1(scan_w_wrong_version_ignored,pattern);
exit;
end;
if c='.' then
begin
current_scanner.readchar;
current_scanner.readnumber;
valint(pattern,minor,error);
if error<>0 then
begin
Message1(scan_w_wrong_version_ignored,tostr(major)+'.'+pattern);
exit;
end;
if (c='.') and
(target_info.target = target_i386_netware) then // AD
begin
current_scanner.readchar;
current_scanner.readnumber;
valint(pattern,revision,error);
if error<>0 then
begin
Message1(scan_w_wrong_version_ignored,tostr(revision)+'.'+pattern);
exit;
end;
dllmajor:=major;
dllminor:=minor;
dllrevision:=revision;
dllversion:=tostr(major)+','+tostr(minor)+','+tostr(revision);
end
else
begin
dllmajor:=major;
dllminor:=minor;
dllversion:=tostr(major)+'.'+tostr(minor);
end;
end
else
dllversion:=tostr(major);
end;
end;
procedure dir_wait;
var
had_info : boolean;
begin
had_info:=(status.verbosity and V_Info)<>0;
{ this message should allways appear !! }
status.verbosity:=status.verbosity or V_Info;
Message(scan_i_press_enter);
readln;
If not(had_info) then
status.verbosity:=status.verbosity and (not V_Info);
end;
procedure dir_warning;
begin
do_message(scan_w_user_defined);
end;
procedure dir_warnings;
begin
do_setverbose('W');
end;
procedure dir_z1;
begin
aktpackenum:=1;
end;
procedure dir_z2;
begin
aktpackenum:=2;
end;
procedure dir_z4;
begin
aktpackenum:=4;
end;
{****************************************************************************
Initialize Directives
****************************************************************************}
procedure InitScannerDirectives;
begin
AddDirective('ALIGN',{$ifdef FPCPROCVAR}@{$endif}dir_align);
AddDirective('APPTYPE',{$ifdef FPCPROCVAR}@{$endif}dir_apptype);
AddDirective('ASMMODE',{$ifdef FPCPROCVAR}@{$endif}dir_asmmode);
AddDirective('ASSERTIONS',{$ifdef FPCPROCVAR}@{$endif}dir_assertions);
AddDirective('BOOLEVAL',{$ifdef FPCPROCVAR}@{$endif}dir_booleval);
AddDirective('D',{$ifdef FPCPROCVAR}@{$endif}dir_description);
AddDirective('DEBUGINFO',{$ifdef FPCPROCVAR}@{$endif}dir_debuginfo);
AddDirective('DESCRIPTION',{$ifdef FPCPROCVAR}@{$endif}dir_description);
AddDirective('ERROR',{$ifdef FPCPROCVAR}@{$endif}dir_error);
AddDirective('EXTENDEDSYNTAX',{$ifdef FPCPROCVAR}@{$endif}dir_extendedsyntax);
AddDirective('FATAL',{$ifdef FPCPROCVAR}@{$endif}dir_fatal);
AddDirective('GOTO',{$ifdef FPCPROCVAR}@{$endif}dir_goto);
AddDirective('HINT',{$ifdef FPCPROCVAR}@{$endif}dir_hint);
AddDirective('HINTS',{$ifdef FPCPROCVAR}@{$endif}dir_hints);
AddDirective('IOCHECKS',{$ifdef FPCPROCVAR}@{$endif}dir_iochecks);
AddDirective('INCLUDEPATH',{$ifdef FPCPROCVAR}@{$endif}dir_includepath);
AddDirective('INFO',{$ifdef FPCPROCVAR}@{$endif}dir_info);
AddDirective('INLINE',{$ifdef FPCPROCVAR}@{$endif}dir_inline);
AddDirective('INTERFACES',{$ifdef FPCPROCVAR}@{$endif}dir_interfaces);
AddDirective('L',{$ifdef FPCPROCVAR}@{$endif}dir_link);
AddDirective('LIBRARYPATH',{$ifdef FPCPROCVAR}@{$endif}dir_librarypath);
AddDirective('LINK',{$ifdef FPCPROCVAR}@{$endif}dir_link);
AddDirective('LINKLIB',{$ifdef FPCPROCVAR}@{$endif}dir_linklib);
AddDirective('LOCALSYMBOLS',{$ifdef FPCPROCVAR}@{$endif}dir_localsymbols);
AddDirective('LONGSTRINGS',{$ifdef FPCPROCVAR}@{$endif}dir_longstrings);
AddDirective('M',{$ifdef FPCPROCVAR}@{$endif}dir_memory);
AddDirective('MACRO',{$ifdef FPCPROCVAR}@{$endif}dir_macro);
AddDirective('MAXFPUREGISTERS',{$ifdef FPCPROCVAR}@{$endif}dir_maxfpuregisters);
AddDirective('MEMORY',{$ifdef FPCPROCVAR}@{$endif}dir_memory);
AddDirective('MESSAGE',{$ifdef FPCPROCVAR}@{$endif}dir_message);
AddDirective('MINENUMSIZE',{$ifdef FPCPROCVAR}@{$endif}dir_packenum);
AddDirective('MMX',{$ifdef FPCPROCVAR}@{$endif}dir_mmx);
AddDirective('MODE',{$ifdef FPCPROCVAR}@{$endif}dir_mode);
AddDirective('NOTE',{$ifdef FPCPROCVAR}@{$endif}dir_note);
AddDirective('NOTES',{$ifdef FPCPROCVAR}@{$endif}dir_notes);
AddDirective('OBJECTPATH',{$ifdef FPCPROCVAR}@{$endif}dir_objectpath);
AddDirective('OPENSTRINGS',{$ifdef FPCPROCVAR}@{$endif}dir_openstrings);
AddDirective('OUTPUT_FORMAT',{$ifdef FPCPROCVAR}@{$endif}dir_output_format);
AddDirective('OVERFLOWCHECKS',{$ifdef FPCPROCVAR}@{$endif}dir_overflowchecks);
AddDirective('PACKENUM',{$ifdef FPCPROCVAR}@{$endif}dir_packenum);
AddDirective('PACKRECORDS',{$ifdef FPCPROCVAR}@{$endif}dir_packrecords);
{$IFDEF TestVarsets}
AddDirective('PACKSET',{$ifdef FPCPROCVAR}@{$endif}dir_packset);
{$ENDIF}
AddDirective('R',{$ifdef FPCPROCVAR}@{$endif}dir_resource);
AddDirective('RANGECHECKS',{$ifdef FPCPROCVAR}@{$endif}dir_rangechecks);
AddDirective('REFERENCEINFO',{$ifdef FPCPROCVAR}@{$endif}dir_referenceinfo);
AddDirective('SATURATION',{$ifdef FPCPROCVAR}@{$endif}dir_saturation);
AddDirective('SMARTLINK',{$ifdef FPCPROCVAR}@{$endif}dir_smartlink);
AddDirective('STACKFRAMES',{$ifdef FPCPROCVAR}@{$endif}dir_stackframes);
AddDirective('STATIC',{$ifdef FPCPROCVAR}@{$endif}dir_static);
AddDirective('STOP',{$ifdef FPCPROCVAR}@{$endif}dir_stop);
AddDirective('TYPEDADDRESS',{$ifdef FPCPROCVAR}@{$endif}dir_typedaddress);
AddDirective('TYPEINFO',{$ifdef FPCPROCVAR}@{$endif}dir_typeinfo);
AddDirective('UNITPATH',{$ifdef FPCPROCVAR}@{$endif}dir_unitpath);
AddDirective('VARSTRINGCHECKS',{$ifdef FPCPROCVAR}@{$endif}dir_varstringchecks);
AddDirective('VERSION',{$ifdef FPCPROCVAR}@{$endif}dir_version);
AddDirective('WAIT',{$ifdef FPCPROCVAR}@{$endif}dir_wait);
AddDirective('WARNING',{$ifdef FPCPROCVAR}@{$endif}dir_warning);
AddDirective('WARNINGS',{$ifdef FPCPROCVAR}@{$endif}dir_warnings);
AddDirective('Z1',{$ifdef FPCPROCVAR}@{$endif}dir_z1);
AddDirective('Z2',{$ifdef FPCPROCVAR}@{$endif}dir_z2);
AddDirective('Z4',{$ifdef FPCPROCVAR}@{$endif}dir_z4);
end;
end.
{
$Log$
Revision 1.2 2001-04-18 22:01:58 peter
* registration of targets and assemblers
Revision 1.1 2001/04/13 18:00:36 peter
* easier registration of directives
Revision 1.20 2001/04/13 01:22:13 peter
* symtable change to classes
* range check generation and errors fixed, make cycle DEBUG=1 works
* memory leaks fixed
Revision 1.19 2001/03/13 18:45:07 peter
* fixed some memory leaks
Revision 1.18 2001/02/20 21:41:18 peter
* new fixfilename, findfile for unix. Look first for lowercase, then
NormalCase and last for UPPERCASE names.
Revision 1.17 2001/01/20 18:32:52 hajny
+ APPTYPE support under OS/2, app_fs, GetEnvPChar for OS/2
Revision 1.16 2001/01/13 00:09:21 peter
* made Pavel O. happy ;)
Revision 1.15 2000/12/25 00:07:28 peter
+ new tlinkedlist class (merge of old tstringqueue,tcontainer and
tlinkedlist objects)
Revision 1.14 2000/12/24 12:24:38 peter
* moved preprocessfile into a conditional
Revision 1.13 2000/12/12 19:48:52 peter
* fixed lost char after $I directive (merged)
Revision 1.12 2000/11/12 22:17:47 peter
* some realname updates for messages
Revision 1.11 2000/11/04 14:25:21 florian
+ merged Attila's changes for interfaces, not tested yet
Revision 1.10 2000/10/31 22:02:51 peter
* symtable splitted, no real code changes
Revision 1.9 2000/09/26 10:50:41 jonas
* initmodeswitches is changed is you change the compiler mode from the
command line (the -S<x> switches didn't work anymore for changing the
compiler mode) (merged from fixes branch)
Revision 1.8 2000/09/24 21:33:47 peter
* message updates merges
Revision 1.7 2000/09/24 15:06:27 peter
* use defines.inc
Revision 1.6 2000/09/11 17:00:23 florian
+ first implementation of Netware Module support, thanks to
Armin Diehl (diehl@nordrhein.de) for providing the patches
Revision 1.5 2000/09/10 21:18:15 peter
* macro warning (merged)
Revision 1.4 2000/08/12 15:30:44 peter
* IDE patch for stream reading (merged)
Revision 1.3 2000/08/08 19:28:57 peter
* memdebug/memory patches (merged)
* only once illegal directive (merged)
Revision 1.2 2000/07/13 11:32:49 michael
+ removed logs
}
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