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https://gitlab.com/freepascal.org/fpc/source.git
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21abdd2f4e
constants. The default is currently 32 bits/single, which corresponds
to the old behaviour (constants which cannot be exactly represented
in the default/chosen precision will also still be automatically
upgraded to higher precision). Supported constructs:
* Command line switch -CF<x>
* Compiler directive {$MINFPCONSTPREC <x>}
whereby in both cases <x> can be default, 32 or 64. 80 is not supported
because there is no generic way to figure out whether the current target
actually supports 80 bit precision floating point calculations while
parsing the command line switches (pbestreal can still change in case of
win64 or -Cfsse2)
git-svn-id: trunk@8349 -
501 lines
14 KiB
ObjectPascal
501 lines
14 KiB
ObjectPascal
{
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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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uses
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globtype;
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const
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def_alignment = 4;
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C_alignment = -1;
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bit_alignment = -2;
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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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tkProcVar = 23;
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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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ftFloat128 = 5;
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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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unknown_level = 0;
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main_program_level = 1;
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normal_function_level = 2;
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{ implicit parameter positions, normal parameters start at 10
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and will increase with 10 for each parameter. The high parameters
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will be inserted with n+1 }
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paranr_parentfp = 1;
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paranr_self = 2;
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paranr_result = 3;
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paranr_vmt = 4;
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{ Required to support variations of syscalls on MorphOS }
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paranr_syscall_basesysv = 9;
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paranr_syscall_sysvbase = high(word)-4;
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paranr_syscall_r12base = high(word)-3;
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paranr_syscall_legacy = high(word)-2;
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paranr_result_leftright = high(word)-1;
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type
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{ keep this in sync with TIntfFlag in rtl/objpas/typinfo.pp }
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TCompilerIntfFlag = (ifHasGuid,ifDispInterface,ifDispatch,ifHasStrGUID);
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{ Deref entry options }
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tdereftype = (deref_nil,
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deref_unit,
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deref_symid,
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deref_defid
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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_hint_unimplemented,
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sp_has_overloaded,
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sp_internal, { internal symbol, not reported as unused }
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sp_strictprivate,
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sp_strictprotected,
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sp_implicitrename,
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sp_hidden
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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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{ type is unique, i.e. declared with type = type <tdef>; }
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df_unique,
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{ type is a generic }
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df_generic,
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{ type is a specialization of a generic type }
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df_specialization
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);
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tdefoptions=set of tdefoption;
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tdefstate=(ds_none,
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ds_vmt_written,
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ds_rtti_table_used,
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ds_init_table_used,
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ds_rtti_table_written,
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ds_init_table_written,
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ds_dwarf_dbg_info_used,
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ds_dwarf_dbg_info_written
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);
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tdefstates=set of tdefstate;
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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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sl_typeconv,
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sl_absolutetype
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);
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{ base types for orddef }
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tordtype = (
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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,bool64bit,
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uchar,uwidechar,scurrency
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);
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{ string types }
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tstringtype = (
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st_shortstring,
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st_longstring,
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st_ansistring,
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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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tvarianttype = (
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vt_normalvariant,vt_olevariant
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);
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tcallercallee = (callerside,calleeside);
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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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potype_procedure,
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potype_function
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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_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_overload, { procedure is declared with overload directive }
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po_varargs, { printf like arguments }
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po_internconst, { procedure has constant evaluator intern }
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{ flag that only the address of a method is returned and not a full methodpointer }
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po_addressonly,
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{ procedure is exported }
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po_public,
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{ calling convention is specified explicitly }
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po_hascallingconvention,
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{ reintroduce flag }
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po_reintroduce,
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{ location of parameters is given explicitly as it is necessary for some syscall
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conventions like that one of MorphOS }
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po_explicitparaloc,
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{ no stackframe will be generated, used by lowlevel assembler like get_frame }
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po_nostackframe,
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po_has_mangledname,
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po_has_public_name,
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po_forward,
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po_global,
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po_has_inlininginfo,
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{ The different kind of syscalls on MorphOS }
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po_syscall_legacy,
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po_syscall_sysv,
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po_syscall_basesysv,
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po_syscall_sysvbase,
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po_syscall_r12base,
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po_local,
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{ Procedure can be inlined }
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po_inline,
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{ Procedure is used for internal compiler calls }
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po_compilerproc,
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{ importing }
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po_has_importdll,
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po_has_importname,
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po_kylixlocal,
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po_dispid
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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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tobjecttyp = (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_interfacecom_property,
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odt_interfacecom_function,
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odt_interfacecorba,
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odt_cppclass,
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odt_dispinterface
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);
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{ Variations in interfaces implementation }
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{ Beware, this data is duplicated in the compiler and rtl. }
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{ Do not change the order of the fields. }
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tinterfaceentrytype = (etStandard,
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etVirtualMethodResult,
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etStaticMethodResult,
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etFieldValue
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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_strictprivate,
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oo_has_strictprotected,
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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_can_have_published,{ the class has rtti, i.e. you can publish properties }
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oo_has_default_property
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);
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tobjectoptions=set of tobjectoption;
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tarraydefoption=(ado_none,
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ado_IsConvertedPointer,
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ado_IsDynamicArray,
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ado_IsVariant,
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ado_IsConstructor,
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ado_IsArrayOfConst,
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ado_IsConstString,
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ado_IsBitPacked
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);
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tarraydefoptions=set of tarraydefoption;
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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_implements
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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_is_external,
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vo_is_dll_var,
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vo_is_thread_var,
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vo_has_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_public,
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vo_is_high_para,
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vo_is_funcret,
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vo_is_self,
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vo_is_vmt,
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vo_is_result, { special result variable }
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vo_is_parentfp,
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vo_is_loop_counter, { used to detect assignments to loop counter }
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vo_is_hidden_para,
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vo_has_explicit_paraloc,
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vo_is_syscall_lib,
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vo_has_mangledname,
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vo_is_typed_const,
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vo_is_range_check,
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vo_is_overflow_check,
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vo_is_typinfo_para
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);
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tvaroptions=set of tvaroption;
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{ register variable }
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tvarregable=(vr_none,
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vr_intreg,
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vr_fpureg,
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vr_mmreg,
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{ does not mean "needs address register", but "if it's a parameter which is }
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{ passed by reference, then its address can be put in a register }
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vr_addr
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);
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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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exportedmacrosymtable, localmacrosymtable
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);
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{ definition contains the informations about a type }
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tdeftyp = (abstractdef,
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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,undefineddef
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);
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{ possible types for symtable entries }
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tsymtyp = (abstractsym,
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staticvarsym,localvarsym,paravarsym,fieldvarsym,
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typesym,procsym,unitsym,constsym,enumsym,
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errorsym,syssym,labelsym,absolutevarsym,propertysym,
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macrosym
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);
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{ State of the variable:
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vs_declared: variable has been declared, not initialised
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(e.g. normal variable, out parameter)
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vs_initialised: variable has been declared and is valid
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(e.g. typed constant, var/const parameter)
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vs_read: variable has been read and the read was checked for validity
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(so a warning has been given if necessary)
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vs_read_not_warned: variable has been read, but we didn't warn about
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whether or not the variable was valid
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(e.g. read of global variable -> warn at end of compilation unit if
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the state is vs_read_not_warned, since that means it's only read and
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never written)
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vs_referred_not_inited: variable has been used in length/low/high/@/...
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expression, was not yet initialised and needn't be at that time
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(e.g. length() of a statically allocated array, or sizeof(variable))
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vs_written: variable has been assigned/written to, but not yet read
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(e.g. assigning something to a variable/parameter)
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vs_readwritten: variable has been written to and read from }
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tvarstate=(vs_none,
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vs_declared,vs_initialised,vs_read,vs_read_not_warned,
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vs_referred_not_inited,vs_written,vs_readwritten
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);
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tvarspez = (vs_value,vs_const,vs_var,vs_out);
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absolutetyp = (tovar,toasm,toaddr);
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tconsttyp = (constnone,
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constord,conststring,constreal,
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constset,constpointer,constnil,
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constresourcestring,constwstring,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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{ The order is from low priority to high priority,
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Note: the operators > and < are used on this list }
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tequaltype = (
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te_incompatible,
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te_convert_operator,
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te_convert_l3, { compatible conversion with possible loss of data }
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te_convert_l2, { compatible less prefered conversion }
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te_convert_l1, { compatible conversion }
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te_equal, { the definitions are equal }
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te_exact
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);
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tvariantequaltype = (
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tve_incompatible,
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tve_chari64,
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tve_wstring,
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tve_astring,
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tve_sstring,
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tve_boolformal,
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tve_extended,
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tve_dblcurrency,
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tve_single,
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tve_cardinal,
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tve_longint,
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tve_smallint,
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tve_word,
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tve_shortint,
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tve_byte
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);
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tvariantequaltypes = set of tvariantequaltype;
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tdefdbgstatus = (
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dbg_state_unused,
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dbg_state_used,
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dbg_state_writing,
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dbg_state_written
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);
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const
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inherited_objectoptions : tobjectoptions = [oo_has_virtual,oo_has_private,oo_has_protected,
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oo_has_strictprotected,oo_has_strictprivate,oo_has_constructor,oo_has_destructor];
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clearstack_pocalls = [
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pocall_cdecl,pocall_cppdecl,pocall_syscall,pocall_mwpascal
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];
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pushleftright_pocalls : tproccalloptions = [pocall_register,pocall_pascal];
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SymTypeName : array[tsymtyp] of string[12] = (
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'abstractsym','globalvar','localvar','paravar','fieldvar',
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'type','proc','unit','const','enum',
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'errorsym','system sym','label','absolutevar','property',
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'macrosym'
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);
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typName : array[tdeftyp] of string[12] = (
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'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','undefineddef'
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);
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EqualTypeName : array[tequaltype] of string[16] = (
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'incompatible','convert_operator','convert_l3','convert_l2',
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'convert_l1','equal','exact'
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);
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implementation
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end.
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