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			376 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			376 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
{
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    $Id$
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    Copyright (c) 1998-2002 by Florian Klaempfl, Pierre Muller
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    Symbol table constants
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    This program is free software; you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation; either version 2 of the License, or
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    (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License
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    along with this program; if not, write to the Free Software
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    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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 ****************************************************************************
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}
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unit symconst;
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{$i fpcdefs.inc}
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interface
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const
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  def_alignment = 4;
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  { if you change one of the following contants, }
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  { you have also to change the typinfo unit}
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  { and the rtl/i386,template/rttip.inc files    }
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  tkUnknown  = 0;
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  tkInteger  = 1;
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  tkChar     = 2;
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  tkEnumeration   = 3;
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  tkFloat    = 4;
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  tkSet      = 5;
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  tkMethod   = 6;
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  tkSString  = 7;
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  tkString   = tkSString;
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  tkLString  = 8;
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  tkAString  = 9;
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  tkWString  = 10;
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  tkVariant  = 11;
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  tkArray    = 12;
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  tkRecord   = 13;
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  tkInterface= 14;
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  tkClass    = 15;
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  tkObject   = 16;
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  tkWChar    = 17;
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  tkBool     = 18;
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  tkInt64    = 19;
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  tkQWord    = 20;
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  tkDynArray = 21;
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  tkInterfaceCorba = 22;
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  otSByte    = 0;
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  otUByte    = 1;
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  otSWord    = 2;
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  otUWord    = 3;
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  otSLong    = 4;
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  otULong    = 5;
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  ftSingle   = 0;
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  ftDouble   = 1;
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  ftExtended = 2;
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  ftComp     = 3;
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  ftCurr     = 4;
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  mkProcedure= 0;
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  mkFunction = 1;
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  mkConstructor   = 2;
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  mkDestructor    = 3;
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  mkClassProcedure= 4;
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  mkClassFunction = 5;
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  pfvar      = 1;
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  pfConst    = 2;
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  pfArray    = 4;
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  pfAddress  = 8;
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  pfReference= 16;
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  pfOut      = 32;
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  {# These are the different possible base values that can
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     be taken from the lexlevel variable when parsing. The
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     lexlevel can be bigger if parsding recursive routines.
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  }
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  main_program_level = 1;
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  unit_init_level = 1;
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  normal_function_level = 2;
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type
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  { Deref entry options }
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  tdereftype = (derefnil,
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    derefaktrecordindex,
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    derefaktstaticindex,
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    derefunit,
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    derefrecord,
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    derefindex,
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    dereflocal,
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    derefpara,
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    derefaktlocal
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  );
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  { symbol options }
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  tsymoption=(sp_none,
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    sp_public,
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    sp_private,
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    sp_published,
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    sp_protected,
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    sp_static,
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    sp_hint_deprecated,
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    sp_hint_platform,
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    sp_hint_library,
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    sp_has_overloaded
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  );
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  tsymoptions=set of tsymoption;
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  { flags for a definition }
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  tdefoption=(df_none,
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    df_has_inittable,           { init data has been generated }
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    df_has_rttitable            { rtti data has been generated }
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  );
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  tdefoptions=set of tdefoption;
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  { tsymlist entry types }
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  tsltype = (sl_none,
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    sl_load,
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    sl_call,
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    sl_subscript,
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    sl_vec
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  );
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  { base types for orddef }
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  tbasetype = (
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    uvoid,
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    u8bit,u16bit,u32bit,u64bit,
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    s8bit,s16bit,s32bit,s64bit,
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    bool8bit,bool16bit,bool32bit,
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    uchar,uwidechar
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  );
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  { float types }
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  tfloattype = (
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    s32real,s64real,s80real,
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    s64comp,s64currency
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  );
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  { string types }
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  tstringtype = (st_default,
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    st_shortstring, st_longstring, st_ansistring, st_widestring
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  );
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  { set types }
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  tsettype = (
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    normset,smallset,varset
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  );
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  { basic type for tprocdef and tprocvardef }
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  tproctypeoption=(potype_none,
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    potype_proginit,     { Program initialization }
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    potype_unitinit,     { unit initialization }
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    potype_unitfinalize, { unit finalization }
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    potype_constructor,  { Procedure is a constructor }
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    potype_destructor,   { Procedure is a destructor }
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    potype_operator      { Procedure defines an operator }
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  );
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  tproctypeoptions=set of tproctypeoption;
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  { other options for tprocdef and tprocvardef }
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  tprocoption=(po_none,
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    po_classmethod,       { class method }
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    po_virtualmethod,     { Procedure is a virtual method }
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    po_abstractmethod,    { Procedure is an abstract method }
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    po_staticmethod,      { static method }
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    po_overridingmethod,  { method with override directive }
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    po_methodpointer,     { method pointer, only in procvardef, also used for 'with object do' }
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    po_containsself,      { self is passed explicit to the compiler }
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    po_interrupt,         { Procedure is an interrupt handler }
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    po_iocheck,           { IO checking should be done after a call to the procedure }
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    po_assembler,         { Procedure is written in assembler }
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    po_msgstr,            { method for string message handling }
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    po_msgint,            { method for int message handling }
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    po_exports,           { Procedure has export directive (needed for OS/2) }
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    po_external,          { Procedure is external (in other object or lib)}
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    po_savestdregs,       { save std regs cdecl and stdcall need that ! }
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    po_saveregisters,     { save all registers }
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    po_overload,          { procedure is declared with overload directive }
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    po_varargs,           { printf like arguments }
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    po_leftright,         { push arguments from left to right }
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    po_clearstack         { caller clears the stack }
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  );
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  tprocoptions=set of tprocoption;
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  { options for objects and classes }
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  tobjectdeftype = (odt_none,
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    odt_class,
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    odt_object,
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    odt_interfacecom,
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    odt_interfacecorba,
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    odt_cppclass
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  );
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  { options for objects and classes }
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  tobjectoption=(oo_none,
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    oo_is_forward,         { the class is only a forward declared yet }
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    oo_has_virtual,        { the object/class has virtual methods }
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    oo_has_private,
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    oo_has_protected,
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    oo_has_constructor,    { the object/class has a constructor }
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    oo_has_destructor,     { the object/class has a destructor }
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    oo_has_vmt,            { the object/class has a vmt }
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    oo_has_msgstr,
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    oo_has_msgint,
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    oo_has_abstract,       { the object/class has an abstract method => no instances can be created }
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    oo_can_have_published { the class has rtti, i.e. you can publish properties }
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  );
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  tobjectoptions=set of tobjectoption;
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  { options for properties }
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  tpropertyoption=(ppo_none,
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    ppo_indexed,
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    ppo_defaultproperty,
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    ppo_stored,
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    ppo_hasparameters,
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    ppo_is_override
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  );
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  tpropertyoptions=set of tpropertyoption;
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  { options for variables }
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  tvaroption=(vo_none,
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    vo_regable,
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    vo_is_C_var,
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    vo_is_external,
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    vo_is_dll_var,
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    vo_is_thread_var,
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    vo_fpuregable,
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    vo_is_local_copy,
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    vo_is_const,  { variable is declared as const (parameter) and can't be written to }
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    vo_is_exported
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  );
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  tvaroptions=set of tvaroption;
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  { types of the symtables }
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  tsymtabletype = (abstractsymtable,
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    globalsymtable,staticsymtable,
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    objectsymtable,recordsymtable,
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    localsymtable,parasymtable,
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    withsymtable,stt_exceptsymtable,
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    { used for inline detection }
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    inlineparasymtable,inlinelocalsymtable
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  );
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  { definition contains the informations about a type }
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  tdeftype = (abstractdef,arraydef,recorddef,pointerdef,orddef,
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              stringdef,enumdef,procdef,objectdef,errordef,
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              filedef,formaldef,setdef,procvardef,floatdef,
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              classrefdef,forwarddef,variantdef);
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  { possible types for symtable entries }
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  tsymtyp = (abstractsym,varsym,typesym,procsym,unitsym,
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             constsym,enumsym,typedconstsym,errorsym,syssym,
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             labelsym,absolutesym,propertysym,funcretsym,
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             macrosym,rttisym);
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  { State of the variable, if it's declared, assigned or used }
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  tvarstate=(vs_none,
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    vs_declared,vs_declared_and_first_found,
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    vs_set_but_first_not_passed,vs_assigned,vs_used
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  );
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  tvarspez = (vs_value,vs_const,vs_var,vs_out);
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  targconvtyp = (act_convertable,act_equal,act_exact);
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  absolutetyp = (tovar,toasm,toaddr);
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  tconsttyp = (constnone,
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    constord,conststring,constreal,constbool,
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    constint,constchar,constset,constpointer,constnil,
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    constresourcestring,constwstring,constwchar,constguid
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  );
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  { RTTI information to store }
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  trttitype = (
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    fullrtti,initrtti
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  );
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{$ifdef GDB}
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type
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  tdefstabstatus = (
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    not_written,
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    being_written,
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    written);
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const
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  tagtypes : Set of tdeftype =
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    [recorddef,enumdef,
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    {$IfNDef GDBKnowsStrings}
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    stringdef,
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    {$EndIf not GDBKnowsStrings}
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    {$IfNDef GDBKnowsFiles}
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    filedef,
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    {$EndIf not GDBKnowsFiles}
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    objectdef];
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{$endif GDB}
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const
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  { relevant options for assigning a proc or a procvar to a procvar }
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  po_compatibility_options = [
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    po_classmethod,
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    po_staticmethod,
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    po_methodpointer,
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    po_containsself,
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    po_interrupt,
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    po_iocheck,
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    po_varargs,
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    po_exports
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  ];
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const
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     SymTypeName : array[tsymtyp] of string[12] =
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     ('abstractsym','variable','type','proc','unit',
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      'const','enum','typed const','errorsym','system sym',
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      'label','absolute','property','funcret',
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      'macrosym','rttisym');
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implementation
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end.
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{
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  $Log$
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  Revision 1.33  2002-07-01 16:23:54  peter
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    * cg64 patch
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    * basics for currency
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    * asnode updates for class and interface (not finished)
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  Revision 1.32  2002/05/18 13:34:18  peter
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    * readded missing revisions
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  Revision 1.31  2002/05/16 19:46:44  carl
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  + defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
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  + try to fix temp allocation (still in ifdef)
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  + generic constructor calls
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  + start of tassembler / tmodulebase class cleanup
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  Revision 1.30  2002/05/14 19:34:50  peter
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    * removed old logs and updated copyright year
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  Revision 1.29  2002/05/12 16:53:10  peter
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    * moved entry and exitcode to ncgutil and cgobj
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    * foreach gets extra argument for passing local data to the
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      iterator function
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    * -CR checks also class typecasts at runtime by changing them
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      into as
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    * fixed compiler to cycle with the -CR option
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    * fixed stabs with elf writer, finally the global variables can
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      be watched
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    * removed a lot of routines from cga unit and replaced them by
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      calls to cgobj
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    * u32bit-s32bit updates for and,or,xor nodes. When one element is
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      u32bit then the other is typecasted also to u32bit without giving
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      a rangecheck warning/error.
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    * fixed pascal calling method with reversing also the high tree in
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      the parast, detected by tcalcst3 test
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  Revision 1.28  2002/01/06 12:08:15  peter
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    * removed uauto from orddef, use new range_to_basetype generating
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      the correct ordinal type for a range
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}
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