fpc/compiler/symdefh.inc

693 lines
23 KiB
PHP

{
$Id$
Copyright (c) 1993-98 by Florian Klaempfl, Pierre Muller
Interface for the definition types of the symtable
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.
****************************************************************************
}
{************************************************
TDef
************************************************}
{ definition contains the informations about a type }
tdeftype = (abstractdef,arraydef,recorddef,pointerdef,orddef,
stringdef,enumdef,procdef,objectdef,errordef,
filedef,formaldef,setdef,procvardef,floatdef,
classrefdef);
pdef = ^tdef;
tdef = object(tsymtableentry)
deftype : tdeftype;
sym : ptypesym; { which type the definition was generated this def }
has_inittable : boolean;
{ adress of init informations }
inittable_label : pasmlabel;
has_rtti : boolean;
{ address of rtti }
rtti_label : pasmlabel;
nextglobal,
previousglobal : pdef;
{$ifdef GDB}
globalnb : word;
is_def_stab_written : boolean;
{$endif GDB}
constructor init;
constructor load;
destructor done;virtual;
procedure deref;virtual;
procedure symderef;virtual;
function typename:string;
procedure write;virtual;
function size:longint;virtual;
function alignment:longint;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
function is_in_current : boolean;
procedure correct_owner_symtable; { registers enumdef inside objects or
record directly in the owner symtable !! }
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
function NumberString:string;
procedure set_globalnb;
function allstabstring : pchar;
{$endif GDB}
{ init. tables }
function needs_inittable : boolean;virtual;
procedure generate_inittable;
function get_inittable_label : pasmlabel;
{ the default implemenation calls write_rtti_data }
{ if init and rtti data is different these procedures }
{ must be overloaded }
procedure write_init_data;virtual;
procedure write_child_init_data;virtual;
{ rtti }
procedure write_rtti_name;
function get_rtti_label : string;virtual;
procedure generate_rtti;virtual;
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
function is_intregable : boolean;
function is_fpuregable : boolean;
private
savesize : longint;
end;
targconvtyp = (act_convertable,act_equal,act_exact);
tvarspez = (vs_value,vs_const,vs_var);
pdefcoll = ^tdefcoll;
tdefcoll = record
data : pdef;
datasym : ptypesym;
next : pdefcoll;
paratyp : tvarspez;
argconvtyp : targconvtyp;
convertlevel : byte;
register : tregister;
end;
tfiletype = (ft_text,ft_typed,ft_untyped);
pfiledef = ^tfiledef;
tfiledef = object(tdef)
filetype : tfiletype;
typed_as : pdef;
constructor init(ft : tfiletype;tas : pdef);
constructor load;
procedure write;virtual;
procedure deref;virtual;
function gettypename:string;virtual;
procedure setsize;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pformaldef = ^tformaldef;
tformaldef = object(tdef)
constructor init;
constructor load;
procedure write;virtual;
function gettypename:string;virtual;
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
perrordef = ^terrordef;
terrordef = object(tdef)
constructor init;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
end;
{ tpointerdef and tclassrefdef should get a common
base class, but I derived tclassrefdef from tpointerdef
to avoid problems with bugs (FK)
}
ppointerdef = ^tpointerdef;
tpointerdef = object(tdef)
definition : pdef;
defsym : ptypesym;
is_far : boolean;
constructor init(def : pdef);
constructor initfar(def : pdef);
constructor load;
procedure write;virtual;
procedure deref;virtual;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pobjectdef = ^tobjectdef;
tobjectdef = object(tdef)
childof : pobjectdef;
objname : pstring;
symtable : psymtable;
objectoptions : tobjectoptions;
{ to be able to have a variable vmt position }
{ and no vmt field for objects without virtuals }
vmt_offset : longint;
constructor init(const n : string;c : pobjectdef);
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function size : longint;virtual;
function alignment:longint;virtual;
function vmtmethodoffset(index:longint):longint;
function is_publishable : boolean;virtual;
function vmt_mangledname : string;
function rtti_name : string;
procedure check_forwards;
function is_related(d : pobjectdef) : boolean;
function is_class : boolean;
function next_free_name_index : longint;
procedure insertvmt;
procedure set_parent(c : pobjectdef);
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
{ init/final }
function needs_inittable : boolean;virtual;
procedure write_init_data;virtual;
procedure write_child_init_data;virtual;
{ rtti }
function get_rtti_label : string;virtual;
procedure generate_rtti;virtual;
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
end;
pclassrefdef = ^tclassrefdef;
tclassrefdef = object(tpointerdef)
constructor init(def : pdef);
constructor load;
procedure write;virtual;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
parraydef = ^tarraydef;
tarraydef = object(tdef)
private
rangenr : longint;
public
lowrange,
highrange : longint;
definition : pdef;
rangedef : pdef;
IsVariant,
IsConstructor,
IsArrayOfConst : boolean;
function gettypename:string;virtual;
function elesize : longint;
constructor init(l,h : longint;rd : pdef);
constructor load;
procedure write;virtual;
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
procedure deref;virtual;
function size : longint;virtual;
function alignment : longint;virtual;
{ generates the ranges needed by the asm instruction BOUND (i386)
or CMP2 (Motorola) }
procedure genrangecheck;
{ returns the label of the range check string }
function getrangecheckstring : string;
function needs_inittable : boolean;virtual;
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
end;
precorddef = ^trecorddef;
trecorddef = object(tdef)
symtable : psymtable;
constructor init(p : psymtable);
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function size:longint;virtual;
function alignment : longint;virtual;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
{ init/final }
procedure write_init_data;virtual;
procedure write_child_init_data;virtual;
function needs_inittable : boolean;virtual;
{ rtti }
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
end;
porddef = ^torddef;
torddef = object(tdef)
low,high : longint;
rangenr : longint;
typ : tbasetype;
constructor init(t : tbasetype;v,b : longint);
constructor load;
procedure write;virtual;
function is_publishable : boolean;virtual;
function gettypename:string;virtual;
procedure setsize;
{ generates the ranges needed by the asm instruction BOUND }
{ or CMP2 (Motorola) }
procedure genrangecheck;
function getrangecheckstring : string;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
{ rtti }
procedure write_rtti_data;virtual;
end;
pfloatdef = ^tfloatdef;
tfloatdef = object(tdef)
typ : tfloattype;
constructor init(t : tfloattype);
constructor load;
procedure write;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
procedure setsize;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
{ rtti }
procedure write_rtti_data;virtual;
end;
pabstractprocdef = ^tabstractprocdef;
tabstractprocdef = object(tdef)
{ saves a definition to the return type }
retdef : pdef;
proctypeoption : tproctypeoption;
proccalloptions : tproccalloptions;
procoptions : tprocoptions;
para1 : pdefcoll;
symtablelevel : byte;
fpu_used : byte; { how many stack fpu must be empty }
constructor init;
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
procedure concatdef(p : pdef;vsp : tvarspez);
procedure concattypesym(p : ptypesym;vsp : tvarspez);
function para_size : longint;
function demangled_paras : string;
procedure test_if_fpu_result;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pprocvardef = ^tprocvardef;
tprocvardef = object(tabstractprocdef)
constructor init;
constructor load;
procedure write;virtual;
function size : longint;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput); virtual;
{$endif GDB}
{ rtti }
procedure write_child_rtti_data;virtual;
procedure write_rtti_data;virtual;
end;
tmessageinf = record
case integer of
0 : (str : pchar);
1 : (i : longint);
end;
pprocdef = ^tprocdef;
tprocdef = object(tabstractprocdef)
private
_mangledname : pchar;
public
extnumber : longint;
messageinf : tmessageinf;
nextoverloaded : pprocdef;
{ where is this function defined, needed here because there
is only one symbol for all overloaded functions }
fileinfo : tfileposinfo;
{ pointer to the local symbol table }
localst : psymtable;
{ pointer to the parameter symbol table }
parast : psymtable;
{ symbol owning this definition }
procsym : pprocsym;
{ browser info }
lastref,
defref,
crossref,
lastwritten : pref;
refcount : longint;
_class : pobjectdef;
{ it's a tree, but this not easy to handle }
{ used for inlined procs }
code : pointer;
{ true, if the procedure is only declared }
{ (forward procedure) }
forwarddef,
{ true if the procedure is declared in the interface }
interfacedef : boolean;
{ check the problems of manglednames }
count : boolean;
is_used : boolean;
{ small set which contains the modified registers }
{$ifdef newcg}
usedregisters : tregisterset;
{$else newcg}
usedregisters : longint;
{$endif newcg}
constructor init;
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function haspara:boolean;
function mangledname : string;
procedure setmangledname(const s : string);
procedure load_references;
function write_references : boolean;
function procname: string;
{ debug }
{$ifdef GDB}
function cplusplusmangledname : string;
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
{ browser }
{$ifdef BrowserLog}
procedure add_to_browserlog;
{$endif BrowserLog}
end;
pstringdef = ^tstringdef;
tstringdef = object(tdef)
string_typ : tstringtype;
len : longint;
constructor shortinit(l : byte);
constructor shortload;
constructor longinit(l : longint);
constructor longload;
constructor ansiinit(l : longint);
constructor ansiload;
constructor wideinit(l : longint);
constructor wideload;
function stringtypname:string;
function size : longint;virtual;
procedure write;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
{ init/final }
function needs_inittable : boolean;virtual;
{ rtti }
procedure write_rtti_data;virtual;
end;
penumdef = ^tenumdef;
tenumdef = object(tdef)
rangenr,
minval,
maxval : longint;
has_jumps : boolean;
firstenum : penumsym;
basedef : penumdef;
constructor init;
constructor init_subrange(_basedef:penumdef;_min,_max:longint);
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
procedure calcsavesize;
procedure setmax(_max:longint);
procedure setmin(_min:longint);
function min:longint;
function max:longint;
function getrangecheckstring:string;
procedure genrangecheck;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
{ rtti }
procedure write_child_rtti_data;virtual;
procedure write_rtti_data;virtual;
end;
psetdef = ^tsetdef;
tsetdef = object(tdef)
setof : pdef;
settype : tsettype;
constructor init(s : pdef;high : longint);
constructor load;
procedure write;virtual;
procedure deref;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
{ rtti }
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
end;
{
$Log$
Revision 1.41 1999-08-10 12:34:49 pierre
+ procsym field in tprocdef to allow correct gdb info generation
Revision 1.40 1999/08/09 22:19:57 peter
* classes vmt changed to only positive addresses
* sharedlib creation is working
Revision 1.39 1999/08/07 14:21:02 florian
* some small problems fixed
Revision 1.38 1999/08/05 16:53:15 peter
* V_Fatal=1, all other V_ are also increased
* Check for local procedure when assigning procvar
* fixed comment parsing because directives
* oldtp mode directives better supported
* added some messages to errore.msg
Revision 1.37 1999/08/03 22:03:16 peter
* moved bitmask constants to sets
* some other type/const renamings
Revision 1.36 1999/08/02 21:29:04 florian
* the main branch psub.pas is now used for
newcg compiler
Revision 1.35 1999/07/27 23:42:20 peter
* indirect type referencing is now allowed
Revision 1.34 1999/07/23 16:05:30 peter
* alignment is now saved in the symtable
* C alignment added for records
* PPU version increased to solve .12 <-> .13 probs
Revision 1.33 1999/06/22 16:24:45 pierre
* local browser stuff corrected
Revision 1.32 1999/06/02 10:11:51 florian
* make cycle fixed i.e. compilation with 0.99.10
* some fixes for qword
* start of register calling conventions
Revision 1.31 1999/05/31 16:42:35 peter
* interfacedef flag for procdef if it's defined in the interface, to
make a difference with 'forward;' directive forwarddef. Fixes 253
Revision 1.30 1999/05/27 19:45:04 peter
* removed oldasm
* plabel -> pasmlabel
* -a switches to source writing automaticly
* assembler readers OOPed
* asmsymbol automaticly external
* jumptables and other label fixes for asm readers
Revision 1.29 1999/05/23 18:42:15 florian
* better error recovering in typed constants
* some problems with arrays of const fixed, some problems
due my previous
- the location type of array constructor is now LOC_MEM
- the pushing of high fixed
- parameter copying fixed
- zero temp. allocation removed
* small problem in the assembler writers fixed:
ref to nil wasn't written correctly
Revision 1.28 1999/05/19 16:48:28 florian
* tdef.typename: returns a now a proper type name for the most types
Revision 1.27 1999/05/13 21:59:42 peter
* removed oldppu code
* warning if objpas is loaded from uses
* first things for new deref writing
Revision 1.26 1999/05/12 00:19:59 peter
* removed R_DEFAULT_SEG
* uniform float names
Revision 1.25 1999/05/08 19:52:37 peter
+ MessagePos() which is enhanced Message() function but also gets the
position info
* Removed comp warnings
Revision 1.24 1999/05/06 09:05:30 peter
* generic write_float and str_float
* fixed constant float conversions
Revision 1.23 1999/04/26 18:30:02 peter
* farpointerdef moved into pointerdef.is_far
Revision 1.22 1999/04/26 13:31:49 peter
* release storenumber,double_checksum
Revision 1.21 1999/04/21 09:43:52 peter
* storenumber works
* fixed some typos in double_checksum
+ incompatible types type1 and type2 message (with storenumber)
Revision 1.20 1999/04/14 09:15:00 peter
* first things to store the symbol/def number in the ppu
Revision 1.19 1999/04/08 15:57:52 peter
+ subrange checking for readln()
Revision 1.18 1999/03/02 18:24:21 peter
* fixed overloading of array of char
Revision 1.17 1999/03/01 13:45:06 pierre
+ added staticppusymtable symtable type for local browsing
Revision 1.16 1999/02/22 20:13:39 florian
+ first implementation of message keyword
Revision 1.15 1999/01/20 14:18:40 pierre
* bugs related to mangledname solved
- linux external without name
-external procs already used
(added count and is_used boolean fiels in tprocvar)
Revision 1.14 1999/01/12 14:25:33 peter
+ BrowserLog for browser.log generation
+ BrowserCol for browser info in TCollections
* released all other UseBrowser
Revision 1.13 1998/12/30 22:15:53 peter
+ farpointer type
* absolutesym now also stores if its far
Revision 1.12 1998/12/10 09:47:28 florian
+ basic operations with int64/qord (compiler with -dint64)
+ rtti of enumerations extended: names are now written
Revision 1.11 1998/11/29 21:45:49 florian
* problem with arrays with init tables fixed
Revision 1.10 1998/11/20 15:36:00 florian
* problems with rtti fixed, hope it works
Revision 1.9 1998/11/10 10:09:14 peter
* va_list -> array of const
Revision 1.8 1998/11/09 11:44:37 peter
+ va_list for printf support
Revision 1.7 1998/11/05 12:02:59 peter
* released useansistring
* removed -Sv, its now available in fpc modes
Revision 1.6 1998/10/22 17:11:23 pierre
+ terminated the include exclude implementation for i386
* enums inside records fixed
Revision 1.5 1998/10/16 13:12:55 pierre
* added vmt_offsets in destructors code also !!!
* vmt_offset code for m68k
Revision 1.4 1998/10/16 08:51:52 peter
+ target_os.stackalignment
+ stack can be aligned at 2 or 4 byte boundaries
Revision 1.3 1998/10/05 21:33:30 peter
* fixed 161,165,166,167,168
Revision 1.2 1998/10/02 07:20:40 florian
* range checking in units doesn't work if the units are smartlinked, fixed
Revision 1.1 1998/09/23 12:03:57 peter
* overloading fix for array of const
}