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fpc/compiler/symdef.pas

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{
$Id$
Copyright (c) 1998-2000 by Florian Klaempfl, Pierre Muller
Symbol table implementation for the definitions
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 symdef;
{$i defines.inc}
interface
uses
{ common }
cutils,cobjects,
{ global }
globtype,globals,tokens,
{ symtable }
symconst,symbase,symtype,
{ node }
node,
{ aasm }
aasm,cpubase
;
type
{************************************************
TDef
************************************************}
pstoreddef = ^tstoreddef;
tstoreddef = object(tdef)
has_inittable : boolean;
{ adress of init informations }
inittable_label : pasmlabel;
has_rtti : boolean;
{ address of rtti }
rtti_label : pasmlabel;
nextglobal,
previousglobal : pstoreddef;
{$ifdef GDB}
globalnb : word;
is_def_stab_written : tdefstabstatus;
{$endif GDB}
constructor init;
constructor load;
destructor done;virtual;
procedure write;virtual;
function size:longint;virtual;
function alignment:longint;virtual;
function is_publishable : boolean;virtual;
function is_in_current : boolean;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
function NumberString:string;
procedure set_globalnb;virtual;
function allstabstring : pchar;
{$endif GDB}
{ init. tables }
function needs_inittable : boolean;virtual;
procedure generate_inittable;
function get_inittable_label : pasmlabel;
{ the default implemenation calls write_rtti_data }
{ if init and rtti data is different these procedures }
{ must be overloaded }
procedure write_init_data;virtual;
procedure write_child_init_data;virtual;
{ rtti }
procedure write_rtti_name;
function get_rtti_label : string;virtual;
procedure generate_rtti;virtual;
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
function is_intregable : boolean;
function is_fpuregable : boolean;
private
savesize : longint;
end;
targconvtyp = (act_convertable,act_equal,act_exact);
tvarspez = (vs_value,vs_const,vs_var,vs_out);
pparaitem = ^tparaitem;
tparaitem = object(tlinkedlist_item)
paratype : ttype;
paratyp : tvarspez;
argconvtyp : targconvtyp;
convertlevel : byte;
register : tregister;
defaultvalue : psym; { pconstsym }
end;
{ this is only here to override the count method,
which can't be used }
pparalinkedlist = ^tparalinkedlist;
tparalinkedlist = object(tlinkedlist)
function count:longint;
end;
tfiletyp = (ft_text,ft_typed,ft_untyped);
pfiledef = ^tfiledef;
tfiledef = object(tstoreddef)
filetyp : tfiletyp;
typedfiletype : ttype;
constructor inittext;
constructor inituntyped;
constructor inittyped(const tt : ttype);
constructor inittypeddef(p : pdef);
constructor load;
procedure write;virtual;
procedure deref;virtual;
function gettypename:string;virtual;
procedure setsize;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pformaldef = ^tformaldef;
tformaldef = object(tstoreddef)
constructor init;
constructor load;
procedure write;virtual;
function gettypename:string;virtual;
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pforwarddef = ^tforwarddef;
tforwarddef = object(tstoreddef)
tosymname : string;
forwardpos : tfileposinfo;
constructor init(const s:string;const pos : tfileposinfo);
function gettypename:string;virtual;
end;
perrordef = ^terrordef;
terrordef = object(tstoreddef)
constructor init;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
end;
{ tpointerdef and tclassrefdef should get a common
base class, but I derived tclassrefdef from tpointerdef
to avoid problems with bugs (FK)
}
ppointerdef = ^tpointerdef;
tpointerdef = object(tstoreddef)
pointertype : ttype;
is_far : boolean;
constructor init(const tt : ttype);
constructor initfar(const tt : ttype);
constructor initdef(p : pdef);
constructor initfardef(p : pdef);
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pprocdef = ^tprocdef;
pimplementedinterfaces = ^timplementedinterfaces;
pobjectdef = ^tobjectdef;
tobjectdef = object(tstoreddef)
childof : pobjectdef;
objname : pstring;
symtable : psymtable;
objectoptions : tobjectoptions;
{ to be able to have a variable vmt position }
{ and no vmt field for objects without virtuals }
vmt_offset : longint;
{$ifdef GDB}
classglobalnb,
classptrglobalnb : word;
writing_stabs : boolean;
{$endif GDB}
objecttype : tobjectdeftype;
isiidguidvalid: boolean;
iidguid: TGUID;
iidstr: pstring;
lastvtableindex: longint;
{ store implemented interfaces defs and name mappings }
implementedinterfaces: pimplementedinterfaces;
constructor init(ot : tobjectdeftype;const n : string;c : pobjectdef);
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function size : longint;virtual;
function alignment:longint;virtual;
function getsymtable(t:tgetsymtable):psymtable;virtual;
function vmtmethodoffset(index:longint):longint;
function is_publishable : boolean;virtual;
function vmt_mangledname : string;
function rtti_name : string;
procedure check_forwards;
function is_related(d : pobjectdef) : boolean;
function next_free_name_index : longint;
procedure insertvmt;
procedure set_parent(c : pobjectdef);
function searchdestructor : pprocdef;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure set_globalnb;virtual;
function classnumberstring : string;
function classptrnumberstring : string;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
{ init/final }
function needs_inittable : boolean;virtual;
procedure write_init_data;virtual;
procedure write_child_init_data;virtual;
{ rtti }
function get_rtti_label : string;virtual;
procedure generate_rtti;virtual;
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
function generate_field_table : pasmlabel;
end;
timplementedinterfaces = object
constructor init;
destructor done; virtual;
function count: longint;
function interfaces(intfindex: longint): pobjectdef;
function ioffsets(intfindex: longint): plongint;
function searchintf(def: pdef): longint;
procedure addintf(def: pdef);
procedure deref;
procedure addintfref(def: pdef);
procedure clearmappings;
procedure addmappings(intfindex: longint; const name, newname: string);
function getmappings(intfindex: longint; const name: string; var nextexist: pointer): string;
procedure clearimplprocs;
procedure addimplproc(intfindex: longint; procdef: pprocdef);
function implproccount(intfindex: longint): longint;
function implprocs(intfindex: longint; procindex: longint): pprocdef;
function isimplmergepossible(intfindex, remainindex: longint; var weight: longint): boolean;
private
finterfaces: tindexarray;
procedure checkindex(intfindex: longint);
end;
pclassrefdef = ^tclassrefdef;
tclassrefdef = object(tpointerdef)
constructor init(def : pdef);
constructor load;
procedure write;virtual;
function gettypename:string;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
parraydef = ^tarraydef;
tarraydef = object(tstoreddef)
rangenr : longint;
lowrange,
highrange : longint;
elementtype,
rangetype : ttype;
IsDynamicArray,
IsVariant,
IsConstructor,
IsArrayOfConst : boolean;
function gettypename:string;virtual;
function elesize : longint;
constructor init(l,h : longint;rd : pdef);
constructor load;
procedure write;virtual;
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
procedure deref;virtual;
function size : longint;virtual;
function alignment : longint;virtual;
{ generates the ranges needed by the asm instruction BOUND (i386)
or CMP2 (Motorola) }
procedure genrangecheck;
{ returns the label of the range check string }
function getrangecheckstring : string;
function needs_inittable : boolean;virtual;
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
end;
precorddef = ^trecorddef;
trecorddef = object(tstoreddef)
symtable : psymtable;
constructor init(p : psymtable);
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function size:longint;virtual;
function alignment : longint;virtual;
function gettypename:string;virtual;
function getsymtable(t:tgetsymtable):psymtable;virtual;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
{ init/final }
procedure write_init_data;virtual;
procedure write_child_init_data;virtual;
function needs_inittable : boolean;virtual;
{ rtti }
procedure write_rtti_data;virtual;
procedure write_child_rtti_data;virtual;
end;
porddef = ^torddef;
torddef = object(tstoreddef)
rangenr : longint;
low,high : longint;
typ : tbasetype;
constructor init(t : tbasetype;v,b : longint);
constructor load;
procedure write;virtual;
function is_publishable : boolean;virtual;
function gettypename:string;virtual;
procedure setsize;
{ generates the ranges needed by the asm instruction BOUND }
{ or CMP2 (Motorola) }
procedure genrangecheck;
function getrangecheckstring : string;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
{ rtti }
procedure write_rtti_data;virtual;
end;
pfloatdef = ^tfloatdef;
tfloatdef = object(tstoreddef)
typ : tfloattype;
constructor init(t : tfloattype);
constructor load;
procedure write;virtual;
function gettypename:string;virtual;
function is_publishable : boolean;virtual;
procedure setsize;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
{$endif GDB}
{ rtti }
procedure write_rtti_data;virtual;
end;
pabstractprocdef = ^tabstractprocdef;
tabstractprocdef = object(tstoreddef)
{ saves a definition to the return type }
rettype : ttype;
proctypeoption : tproctypeoption;
proccalloptions : tproccalloptions;
procoptions : tprocoptions;
para : pparalinkedlist;
maxparacount,
minparacount : longint;
symtablelevel : byte;
fpu_used : byte; { how many stack fpu must be empty }
constructor init;
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
procedure concatpara(tt:ttype;vsp : tvarspez;defval:psym);
function para_size(alignsize:longint) : longint;
function demangled_paras : string;
function proccalloption2str : string;
procedure test_if_fpu_result;
{ debug }
{$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;
{$endif GDB}
{ rtti }
procedure write_child_rtti_data;virtual;
procedure write_rtti_data;virtual;
end;
tmessageinf = record
case integer of
0 : (str : pchar);
1 : (i : longint);
end;
tprocdef = object(tabstractprocdef)
private
_mangledname : pstring;
public
extnumber : longint;
messageinf : tmessageinf;
nextoverloaded : pprocdef;
{ where is this function defined, needed here because there
is only one symbol for all overloaded functions }
fileinfo : tfileposinfo;
{ symbol owning this definition }
procsym : psym;
{ symtables }
parast,
localst : psymtable;
{ browser info }
lastref,
defref,
crossref,
lastwritten : pref;
refcount : longint;
_class : pobjectdef;
{ it's a tree, but this not easy to handle }
{ used for inlined procs }
code : tnode;
{ info about register variables (JM) }
regvarinfo: pointer;
{ true, if the procedure is only declared }
{ (forward procedure) }
forwarddef,
{ true if the procedure is declared in the interface }
interfacedef : boolean;
{ true if the procedure has a forward declaration }
hasforward : boolean;
{ check the problems of manglednames }
count : boolean;
is_used : boolean;
{ small set which contains the modified registers }
{$ifdef newcg}
usedregisters : tregisterset;
{$else newcg}
usedregisters : longint;
{$endif newcg}
constructor init;
constructor load;
destructor done;virtual;
procedure write;virtual;
procedure deref;virtual;
function getsymtable(t:tgetsymtable):psymtable;virtual;
function haspara:boolean;
function mangledname : string;
procedure setmangledname(const s : string);
procedure load_references;
function write_references : boolean;
function fullprocname:string;
function cplusplusmangledname : string;
{ debug }
{$ifdef GDB}
function stabstring : pchar;virtual;
procedure concatstabto(asmlist : paasmoutput);virtual;
{$endif GDB}
end;
pstringdef = ^tstringdef;
tstringdef = object(tstoreddef)
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(tstoreddef)
rangenr,
minval,
maxval : longint;
has_jumps : boolean;
firstenum : psym; {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;
private
procedure correct_owner_symtable;
end;
psetdef = ^tsetdef;
tsetdef = object(tstoreddef)
elementtype : ttype;
settype : tsettype;
constructor init(s : pdef;high : longint);
constructor load;
destructor done;virtual;
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;
var
aktobjectdef : pobjectdef; { used for private functions check !! }
firstglobaldef, { linked list of all globals defs }
lastglobaldef : pstoreddef; { used to reset stabs/ranges }
{$ifdef GDB}
{ for STAB debugging }
globaltypecount : word;
pglobaltypecount : pword;
{$endif GDB}
{ default types }
generrordef : pdef; { error in definition }
voidpointerdef : ppointerdef; { pointer for Void-Pointerdef }
charpointerdef : ppointerdef; { pointer for Char-Pointerdef }
voidfarpointerdef : ppointerdef;
cformaldef : pformaldef; { unique formal definition }
voiddef : porddef; { Pointer to Void (procedure) }
cchardef : porddef; { Pointer to Char }
cwidechardef : porddef; { Pointer to WideChar }
booldef : porddef; { pointer to boolean type }
u8bitdef : porddef; { Pointer to 8-Bit unsigned }
u16bitdef : porddef; { Pointer to 16-Bit unsigned }
u32bitdef : porddef; { Pointer to 32-Bit unsigned }
s32bitdef : porddef; { Pointer to 32-Bit signed }
cu64bitdef : porddef; { pointer to 64 bit unsigned def }
cs64bitdef : porddef; { pointer to 64 bit signed def, }
{ calculated by the int unit on i386 }
s32floatdef : pfloatdef; { pointer for realconstn }
s64floatdef : pfloatdef; { pointer for realconstn }
s80floatdef : pfloatdef; { pointer to type of temp. floats }
s32fixeddef : pfloatdef; { pointer to type of temp. fixed }
cshortstringdef : pstringdef; { pointer to type of short string const }
clongstringdef : pstringdef; { pointer to type of long string const }
cansistringdef : pstringdef; { pointer to type of ansi string const }
cwidestringdef : pstringdef; { pointer to type of wide string const }
openshortstringdef : pstringdef; { pointer to type of an open shortstring,
needed for readln() }
openchararraydef : parraydef; { pointer to type of an open array of char,
needed for readln() }
cfiledef : pfiledef; { get the same definition for all file }
{ used for stabs }
class_tobject : pobjectdef; { pointer to the anchestor of all classes }
interface_iunknown : pobjectdef; { KAZ: pointer to the ancestor }
rec_tguid : precorddef; { KAZ: pointer to the TGUID type }
{ of all interfaces }
pvmtdef : ppointerdef; { type of classrefs }
const
{$ifdef i386}
bestrealdef : ^pfloatdef = @s80floatdef;
{$endif}
{$ifdef m68k}
bestrealdef : ^pfloatdef = @s64floatdef;
{$endif}
{$ifdef alpha}
bestrealdef : ^pfloatdef = @s64floatdef;
{$endif}
{$ifdef powerpc}
bestrealdef : ^pfloatdef = @s64floatdef;
{$endif}
{$ifdef GDB}
{ GDB Helpers }
function typeglobalnumber(const s : string) : string;
{$endif GDB}
{ should be in the types unit, but the types unit uses the node stuff :( }
function is_interfacecom(def: pdef): boolean;
function is_interfacecorba(def: pdef): boolean;
function is_interface(def: pdef): boolean;
function is_class(def: pdef): boolean;
function is_object(def: pdef): boolean;
function is_cppclass(def: pdef): boolean;
function is_class_or_interface(def: pdef): boolean;
procedure reset_global_defs;
implementation
uses
{$ifdef Delphi}
sysutils,
{$else Delphi}
strings,
{$endif Delphi}
{ global }
verbose,
{ target }
systems,cpuinfo,
{ symtable }
symsym,symtable,
types,
{ ppu }
ppu,symppu,
{ module }
{$ifdef GDB}
gdb,
{$endif GDB}
fmodule,
{ other }
gendef
;
const
memsizeinc = 2048; { for long stabstrings }
{****************************************************************************
Helpers
****************************************************************************}
{$ifdef GDB}
procedure forcestabto(asmlist : paasmoutput; pd : pdef);
begin
if pstoreddef(pd)^.is_def_stab_written = not_written then
begin
if assigned(pd^.typesym) then
ptypesym(pd^.typesym)^.isusedinstab := true;
pstoreddef(pd)^.concatstabto(asmlist);
end;
end;
{$endif GDB}
{****************************************************************************
TDEF (base class for definitions)
****************************************************************************}
constructor tstoreddef.init;
begin
inherited init;
savesize := 0;
has_rtti:=false;
has_inittable:=false;
if registerdef then
symtablestack^.registerdef(@self);
{$ifdef GDB}
is_def_stab_written := not_written;
globalnb := 0;
{$endif GDB}
if assigned(lastglobaldef) then
begin
lastglobaldef^.nextglobal := @self;
previousglobal:=lastglobaldef;
end
else
begin
firstglobaldef := @self;
previousglobal := nil;
end;
lastglobaldef := @self;
nextglobal := nil;
end;
{$ifdef MEMDEBUG}
var
manglenamesize : longint;
{$endif}
constructor tstoreddef.load;
begin
inherited init;
has_rtti:=false;
has_inittable:=false;
{$ifdef GDB}
is_def_stab_written := not_written;
globalnb := 0;
{$endif GDB}
if assigned(lastglobaldef) then
begin
lastglobaldef^.nextglobal := @self;
previousglobal:=lastglobaldef;
end
else
begin
firstglobaldef := @self;
previousglobal:=nil;
end;
lastglobaldef := @self;
nextglobal := nil;
{ load }
indexnr:=readword;
typesym:=ptypesym(readderef);
end;
destructor tstoreddef.done;
begin
{ first element ? }
if not(assigned(previousglobal)) then
begin
firstglobaldef := nextglobal;
if assigned(firstglobaldef) then
firstglobaldef^.previousglobal:=nil;
end
else
begin
{ remove reference in the element before }
previousglobal^.nextglobal:=nextglobal;
end;
{ last element ? }
if not(assigned(nextglobal)) then
begin
lastglobaldef := previousglobal;
if assigned(lastglobaldef) then
lastglobaldef^.nextglobal:=nil;
end
else
nextglobal^.previousglobal:=previousglobal;
previousglobal:=nil;
nextglobal:=nil;
{$ifdef SYNONYM}
while assigned(typesym) do
begin
ptypesym(typesym)^.restype.setdef(nil);
typesym:=ptypesym(typesym)^.synonym;
end;
{$endif}
end;
function tstoreddef.is_in_current : boolean;
var
p : psymtable;
begin
p:=owner;
is_in_current:=false;
while assigned(p) do
begin
if (p=current_module^.globalsymtable) or (p=current_module^.localsymtable)
or (p^.symtabletype in [globalsymtable,staticsymtable]) then
begin
is_in_current:=true;
exit;
end
else if p^.symtabletype in [localsymtable,parasymtable,objectsymtable] then
begin
if assigned(p^.defowner) then
p:=pobjectdef(p^.defowner)^.owner
else
exit;
end
else
exit;
end;
end;
procedure tstoreddef.write;
begin
writeword(indexnr);
writederef(typesym);
{$ifdef GDB}
if globalnb = 0 then
begin
if assigned(owner) then
globalnb := owner^.getnewtypecount
else
begin
globalnb := PGlobalTypeCount^;
Inc(PGlobalTypeCount^);
end;
end;
{$endif GDB}
end;
function tstoreddef.size : longint;
begin
size:=savesize;
end;
function tstoreddef.alignment : longint;
begin
{ normal alignment by default }
alignment:=0;
end;
{$ifdef GDB}
procedure tstoreddef.set_globalnb;
begin
globalnb :=PGlobalTypeCount^;
inc(PglobalTypeCount^);
end;
function tstoreddef.stabstring : pchar;
begin
stabstring := strpnew('t'+numberstring+';');
end;
function tstoreddef.numberstring : string;
var table : psymtable;
begin
{formal def have no type !}
if deftype = formaldef then
begin
numberstring := voiddef^.numberstring;
exit;
end;
if (not assigned(typesym)) or (not ptypesym(typesym)^.isusedinstab) then
begin
{set even if debuglist is not defined}
if assigned(typesym) then
ptypesym(typesym)^.isusedinstab := true;
if assigned(debuglist) and (is_def_stab_written = not_written) then
concatstabto(debuglist);
end;
if not (cs_gdb_dbx in aktglobalswitches) then
begin
if globalnb = 0 then
set_globalnb;
numberstring := tostr(globalnb);
end
else
begin
if globalnb = 0 then
begin
if assigned(owner) then
globalnb := owner^.getnewtypecount
else
begin
globalnb := PGlobalTypeCount^;
Inc(PGlobalTypeCount^);
end;
end;
if assigned(typesym) then
begin
table := ptypesym(typesym)^.owner;
if table^.unitid > 0 then
numberstring := '('+tostr(table^.unitid)+','+tostr(pstoreddef(ptypesym(typesym)^.restype.def)^.globalnb)+')'
else
numberstring := tostr(globalnb);
exit;
end;
numberstring := tostr(globalnb);
end;
end;
function tstoreddef.allstabstring : pchar;
var stabchar : string[2];
ss,st : pchar;
sname : string;
sym_line_no : longint;
begin
ss := stabstring;
getmem(st,strlen(ss)+512);
stabchar := 't';
if deftype in tagtypes then
stabchar := 'Tt';
if assigned(typesym) then
begin
sname := ptypesym(typesym)^.name;
sym_line_no:=ptypesym(typesym)^.fileinfo.line;
end
else
begin
sname := ' ';
sym_line_no:=0;
end;
strpcopy(st,'"'+sname+':'+stabchar+numberstring+'=');
strpcopy(strecopy(strend(st),ss),'",'+tostr(N_LSYM)+',0,'+tostr(sym_line_no)+',0');
allstabstring := strnew(st);
freemem(st,strlen(ss)+512);
strdispose(ss);
end;
procedure tstoreddef.concatstabto(asmlist : paasmoutput);
var stab_str : pchar;
begin
if ((typesym = nil) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches))
and (is_def_stab_written = not_written) then
begin
If cs_gdb_dbx in aktglobalswitches then
begin
{ otherwise you get two of each def }
If assigned(typesym) then
begin
if ptypesym(typesym)^.typ=symconst.typesym then
ptypesym(typesym)^.isusedinstab:=true;
if (ptypesym(typesym)^.owner = nil) or
((ptypesym(typesym)^.owner^.symtabletype = unitsymtable) and
punitsymtable(ptypesym(typesym)^.owner)^.dbx_count_ok) then
begin
{with DBX we get the definition from the other objects }
is_def_stab_written := written;
exit;
end;
end;
end;
{ to avoid infinite loops }
is_def_stab_written := being_written;
stab_str := allstabstring;
asmlist^.concat(new(pai_stabs,init(stab_str)));
is_def_stab_written := written;
end;
end;
{$endif GDB}
{ rtti generation }
procedure tstoreddef.generate_rtti;
begin
if not has_rtti then
begin
has_rtti:=true;
getdatalabel(rtti_label);
write_child_rtti_data;
rttilist^.concat(new(pai_symbol,init(rtti_label,0)));
write_rtti_data;
rttilist^.concat(new(pai_symbol_end,init(rtti_label)));
end;
end;
function tstoreddef.get_rtti_label : string;
begin
generate_rtti;
get_rtti_label:=rtti_label^.name;
end;
{ init table handling }
function tstoreddef.needs_inittable : boolean;
begin
needs_inittable:=false;
end;
procedure tstoreddef.generate_inittable;
begin
has_inittable:=true;
getdatalabel(inittable_label);
write_child_init_data;
rttilist^.concat(new(pai_label,init(inittable_label)));
write_init_data;
end;
procedure tstoreddef.write_init_data;
begin
write_rtti_data;
end;
procedure tstoreddef.write_child_init_data;
begin
write_child_rtti_data;
end;
function tstoreddef.get_inittable_label : pasmlabel;
begin
if not(has_inittable) then
generate_inittable;
get_inittable_label:=inittable_label;
end;
procedure tstoreddef.write_rtti_name;
var
str : string;
begin
{ name }
if assigned(typesym) then
begin
str:=ptypesym(typesym)^.realname;
rttilist^.concat(new(pai_string,init(chr(length(str))+str)));
end
else
rttilist^.concat(new(pai_string,init(#0)))
end;
{ returns true, if the definition can be published }
function tstoreddef.is_publishable : boolean;
begin
is_publishable:=false;
end;
procedure tstoreddef.write_rtti_data;
begin
end;
procedure tstoreddef.write_child_rtti_data;
begin
end;
function tstoreddef.is_intregable : boolean;
begin
is_intregable:=false;
case deftype of
pointerdef,
enumdef,
procvardef :
is_intregable:=true;
orddef :
case porddef(@self)^.typ of
bool8bit,bool16bit,bool32bit,
u8bit,u16bit,u32bit,
s8bit,s16bit,s32bit:
is_intregable:=true;
end;
setdef:
is_intregable:=(psetdef(@self)^.settype=smallset);
end;
end;
function tstoreddef.is_fpuregable : boolean;
begin
is_fpuregable:=(deftype=floatdef) and not(pfloatdef(@self)^.typ in [f32bit,f16bit]);
end;
{****************************************************************************
TPARALINKEDLIST
****************************************************************************}
function tparalinkedlist.count:longint;
begin
{ You must use tabstractprocdef.minparacount and .maxparacount instead }
internalerror(432432978);
count:=0;
end;
{****************************************************************************
TSTRINGDEF
****************************************************************************}
constructor tstringdef.shortinit(l : byte);
begin
inherited init;
string_typ:=st_shortstring;
deftype:=stringdef;
len:=l;
savesize:=len+1;
end;
constructor tstringdef.shortload;
begin
inherited load;
string_typ:=st_shortstring;
deftype:=stringdef;
len:=readbyte;
savesize:=len+1;
end;
constructor tstringdef.longinit(l : longint);
begin
inherited init;
string_typ:=st_longstring;
deftype:=stringdef;
len:=l;
savesize:=target_os.size_of_pointer;
end;
constructor tstringdef.longload;
begin
inherited load;
deftype:=stringdef;
string_typ:=st_longstring;
len:=readlong;
savesize:=target_os.size_of_pointer;
end;
constructor tstringdef.ansiinit(l : longint);
begin
inherited init;
string_typ:=st_ansistring;
deftype:=stringdef;
len:=l;
savesize:=target_os.size_of_pointer;
end;
constructor tstringdef.ansiload;
begin
inherited load;
deftype:=stringdef;
string_typ:=st_ansistring;
len:=readlong;
savesize:=target_os.size_of_pointer;
end;
constructor tstringdef.wideinit(l : longint);
begin
inherited init;
string_typ:=st_widestring;
deftype:=stringdef;
len:=l;
savesize:=target_os.size_of_pointer;
end;
constructor tstringdef.wideload;
begin
inherited load;
deftype:=stringdef;
string_typ:=st_widestring;
len:=readlong;
savesize:=target_os.size_of_pointer;
end;
function tstringdef.stringtypname:string;
const
typname:array[tstringtype] of string[8]=('',
'SHORTSTR','LONGSTR','ANSISTR','WIDESTR'
);
begin
stringtypname:=typname[string_typ];
end;
function tstringdef.size : longint;
begin
size:=savesize;
end;
procedure tstringdef.write;
begin
inherited write;
if string_typ=st_shortstring then
writebyte(len)
else
writelong(len);
case string_typ of
st_shortstring : current_ppu^.writeentry(ibshortstringdef);
st_longstring : current_ppu^.writeentry(iblongstringdef);
st_ansistring : current_ppu^.writeentry(ibansistringdef);
st_widestring : current_ppu^.writeentry(ibwidestringdef);
end;
end;
{$ifdef GDB}
function tstringdef.stabstring : pchar;
var
bytest,charst,longst : string;
begin
case string_typ of
st_shortstring:
begin
charst := typeglobalnumber('char');
{ this is what I found in stabs.texinfo but
gdb 4.12 for go32 doesn't understand that !! }
{$IfDef GDBknowsstrings}
stabstring := strpnew('n'+charst+';'+tostr(len));
{$else}
bytest := typeglobalnumber('byte');
stabstring := strpnew('s'+tostr(len+1)+'length:'+bytest
+',0,8;st:ar'+bytest
+';1;'+tostr(len)+';'+charst+',8,'+tostr(len*8)+';;');
{$EndIf}
end;
st_longstring:
begin
charst := typeglobalnumber('char');
{ this is what I found in stabs.texinfo but
gdb 4.12 for go32 doesn't understand that !! }
{$IfDef GDBknowsstrings}
stabstring := strpnew('n'+charst+';'+tostr(len));
{$else}
bytest := typeglobalnumber('byte');
longst := typeglobalnumber('longint');
stabstring := strpnew('s'+tostr(len+5)+'length:'+longst
+',0,32;dummy:'+bytest+',32,8;st:ar'+bytest
+';1;'+tostr(len)+';'+charst+',40,'+tostr(len*8)+';;');
{$EndIf}
end;
st_ansistring:
begin
{ an ansi string looks like a pchar easy !! }
stabstring:=strpnew('*'+typeglobalnumber('char'));
end;
st_widestring:
begin
{ an ansi string looks like a pchar easy !! }
stabstring:=strpnew('*'+typeglobalnumber('char'));
end;
end;
end;
procedure tstringdef.concatstabto(asmlist : paasmoutput);
begin
inherited concatstabto(asmlist);
end;
{$endif GDB}
function tstringdef.needs_inittable : boolean;
begin
needs_inittable:=string_typ in [st_ansistring,st_widestring];
end;
function tstringdef.gettypename : string;
const
names : array[tstringtype] of string[20] = ('',
'ShortString','LongString','AnsiString','WideString');
begin
gettypename:=names[string_typ];
end;
procedure tstringdef.write_rtti_data;
begin
case string_typ of
st_ansistring:
begin
rttilist^.concat(new(pai_const,init_8bit(tkAString)));
write_rtti_name;
end;
st_widestring:
begin
rttilist^.concat(new(pai_const,init_8bit(tkWString)));
write_rtti_name;
end;
st_longstring:
begin
rttilist^.concat(new(pai_const,init_8bit(tkLString)));
write_rtti_name;
end;
st_shortstring:
begin
rttilist^.concat(new(pai_const,init_8bit(tkSString)));
write_rtti_name;
rttilist^.concat(new(pai_const,init_8bit(len)));
end;
end;
end;
function tstringdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
{****************************************************************************
TENUMDEF
****************************************************************************}
constructor tenumdef.init;
begin
inherited init;
deftype:=enumdef;
minval:=0;
maxval:=0;
calcsavesize;
has_jumps:=false;
basedef:=nil;
rangenr:=0;
firstenum:=nil;
correct_owner_symtable;
end;
constructor tenumdef.init_subrange(_basedef:penumdef;_min,_max:longint);
begin
inherited init;
deftype:=enumdef;
minval:=_min;
maxval:=_max;
basedef:=_basedef;
calcsavesize;
has_jumps:=false;
rangenr:=0;
firstenum:=basedef^.firstenum;
while assigned(firstenum) and (penumsym(firstenum)^.value<>minval) do
firstenum:=penumsym(firstenum)^.nextenum;
correct_owner_symtable;
end;
constructor tenumdef.load;
begin
inherited load;
deftype:=enumdef;
basedef:=penumdef(readderef);
minval:=readlong;
maxval:=readlong;
savesize:=readlong;
has_jumps:=false;
firstenum:=Nil;
end;
procedure tenumdef.calcsavesize;
begin
if (aktpackenum=4) or (min<0) or (max>65535) then
savesize:=4
else
if (aktpackenum=2) or (min<0) or (max>255) then
savesize:=2
else
savesize:=1;
end;
procedure tenumdef.setmax(_max:longint);
begin
maxval:=_max;
calcsavesize;
end;
procedure tenumdef.setmin(_min:longint);
begin
minval:=_min;
calcsavesize;
end;
function tenumdef.min:longint;
begin
min:=minval;
end;
function tenumdef.max:longint;
begin
max:=maxval;
end;
procedure tenumdef.deref;
begin
inherited deref;
resolvedef(pdef(basedef));
end;
destructor tenumdef.done;
begin
inherited done;
end;
procedure tenumdef.write;
begin
inherited write;
writederef(basedef);
writelong(min);
writelong(max);
writelong(savesize);
current_ppu^.writeentry(ibenumdef);
end;
function tenumdef.getrangecheckstring : string;
begin
if (cs_create_smart in aktmoduleswitches) then
getrangecheckstring:='R_'+current_module^.modulename^+tostr(rangenr)
else
getrangecheckstring:='R_'+tostr(rangenr);
end;
procedure tenumdef.genrangecheck;
begin
if rangenr=0 then
begin
{ generate two constant for bounds }
getlabelnr(rangenr);
if (cs_create_smart in aktmoduleswitches) then
datasegment^.concat(new(pai_symbol,initname_global(getrangecheckstring,8)))
else
datasegment^.concat(new(pai_symbol,initname(getrangecheckstring,8)));
datasegment^.concat(new(pai_const,init_32bit(min)));
datasegment^.concat(new(pai_const,init_32bit(max)));
end;
end;
{ used for enumdef because the symbols are
inserted in the owner symtable }
procedure tenumdef.correct_owner_symtable;
var
st : psymtable;
begin
if assigned(owner) and
(owner^.symtabletype in [recordsymtable,objectsymtable]) then
begin
owner^.defindex^.deleteindex(@self);
st:=owner;
while (st^.symtabletype in [recordsymtable,objectsymtable]) do
st:=st^.next;
st^.registerdef(@self);
end;
end;
{$ifdef GDB}
function tenumdef.stabstring : pchar;
var st,st2 : pchar;
p : penumsym;
s : string;
memsize : word;
begin
memsize := memsizeinc;
getmem(st,memsize);
strpcopy(st,'e');
p := penumsym(firstenum);
while assigned(p) do
begin
s :=p^.name+':'+tostr(p^.value)+',';
{ place for the ending ';' also }
if (strlen(st)+length(s)+1<memsize) then
strpcopy(strend(st),s)
else
begin
getmem(st2,memsize+memsizeinc);
strcopy(st2,st);
freemem(st,memsize);
st := st2;
memsize := memsize+memsizeinc;
strpcopy(strend(st),s);
end;
p := p^.nextenum;
end;
strpcopy(strend(st),';');
stabstring := strnew(st);
freemem(st,memsize);
end;
{$endif GDB}
procedure tenumdef.write_child_rtti_data;
begin
if assigned(basedef) then
basedef^.get_rtti_label;
end;
procedure tenumdef.write_rtti_data;
var
hp : penumsym;
begin
rttilist^.concat(new(pai_const,init_8bit(tkEnumeration)));
write_rtti_name;
case savesize of
1:
rttilist^.concat(new(pai_const,init_8bit(otUByte)));
2:
rttilist^.concat(new(pai_const,init_8bit(otUWord)));
4:
rttilist^.concat(new(pai_const,init_8bit(otULong)));
end;
rttilist^.concat(new(pai_const,init_32bit(min)));
rttilist^.concat(new(pai_const,init_32bit(max)));
if assigned(basedef) then
rttilist^.concat(new(pai_const_symbol,initname(basedef^.get_rtti_label)))
else
rttilist^.concat(new(pai_const,init_32bit(0)));
hp:=penumsym(firstenum);
while assigned(hp) do
begin
rttilist^.concat(new(pai_const,init_8bit(length(hp^.name))));
rttilist^.concat(new(pai_string,init(lower(hp^.name))));
hp:=hp^.nextenum;
end;
rttilist^.concat(new(pai_const,init_8bit(0)));
end;
function tenumdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
function tenumdef.gettypename : string;
begin
gettypename:='<enumeration type>';
end;
{****************************************************************************
TORDDEF
****************************************************************************}
constructor torddef.init(t : tbasetype;v,b : longint);
begin
inherited init;
deftype:=orddef;
low:=v;
high:=b;
typ:=t;
rangenr:=0;
setsize;
end;
constructor torddef.load;
begin
inherited load;
deftype:=orddef;
typ:=tbasetype(readbyte);
low:=readlong;
high:=readlong;
rangenr:=0;
setsize;
end;
procedure torddef.setsize;
begin
if typ=uauto then
begin
{ generate a unsigned range if high<0 and low>=0 }
if (low>=0) and (high<0) then
begin
savesize:=4;
typ:=u32bit;
end
else if (low>=0) and (high<=255) then
begin
savesize:=1;
typ:=u8bit;
end
else if (low>=-128) and (high<=127) then
begin
savesize:=1;
typ:=s8bit;
end
else if (low>=0) and (high<=65536) then
begin
savesize:=2;
typ:=u16bit;
end
else if (low>=-32768) and (high<=32767) then
begin
savesize:=2;
typ:=s16bit;
end
else
begin
savesize:=4;
typ:=s32bit;
end;
end
else
begin
case typ of
u8bit,s8bit,
uchar,bool8bit:
savesize:=1;
u16bit,s16bit,
bool16bit,uwidechar:
savesize:=2;
s32bit,u32bit,
bool32bit:
savesize:=4;
u64bit,s64bit:
savesize:=8;
else
savesize:=0;
end;
end;
{ there are no entrys for range checking }
rangenr:=0;
end;
function torddef.getrangecheckstring : string;
begin
if (cs_create_smart in aktmoduleswitches) then
getrangecheckstring:='R_'+current_module^.modulename^+tostr(rangenr)
else
getrangecheckstring:='R_'+tostr(rangenr);
end;
procedure torddef.genrangecheck;
var
rangechecksize : longint;
begin
if rangenr=0 then
begin
if low<=high then
rangechecksize:=8
else
rangechecksize:=16;
{ generate two constant for bounds }
getlabelnr(rangenr);
if (cs_create_smart in aktmoduleswitches) then
datasegment^.concat(new(pai_symbol,initname_global(getrangecheckstring,rangechecksize)))
else
datasegment^.concat(new(pai_symbol,initname(getrangecheckstring,rangechecksize)));
if low<=high then
begin
datasegment^.concat(new(pai_const,init_32bit(low)));
datasegment^.concat(new(pai_const,init_32bit(high)));
end
{ for u32bit we need two bounds }
else
begin
datasegment^.concat(new(pai_const,init_32bit(low)));
datasegment^.concat(new(pai_const,init_32bit($7fffffff)));
datasegment^.concat(new(pai_const,init_32bit($80000000)));
datasegment^.concat(new(pai_const,init_32bit(high)));
end;
end;
end;
procedure torddef.write;
begin
inherited write;
writebyte(byte(typ));
writelong(low);
writelong(high);
current_ppu^.writeentry(iborddef);
end;
{$ifdef GDB}
function torddef.stabstring : pchar;
begin
case typ of
uvoid : stabstring := strpnew(numberstring+';');
{GDB 4.12 for go32 doesn't like boolean as range for 0 to 1 !!!}
{$ifdef Use_integer_types_for_boolean}
bool8bit,
bool16bit,
bool32bit : stabstring := strpnew('r'+numberstring+';0;255;');
{$else : not Use_integer_types_for_boolean}
bool8bit : stabstring := strpnew('-21;');
bool16bit : stabstring := strpnew('-22;');
bool32bit : stabstring := strpnew('-23;');
u64bit : stabstring := strpnew('-32;');
s64bit : stabstring := strpnew('-31;');
{$endif not Use_integer_types_for_boolean}
{ u32bit : stabstring := strpnew('r'+
s32bitdef^.numberstring+';0;-1;'); }
else
stabstring := strpnew('r'+s32bitdef^.numberstring+';'+tostr(low)+';'+tostr(high)+';');
end;
end;
{$endif GDB}
procedure torddef.write_rtti_data;
procedure dointeger;
const
trans : array[uchar..bool8bit] of byte =
(otUByte,otUByte,otUWord,otULong,otSByte,otSWord,otSLong,otUByte);
begin
write_rtti_name;
rttilist^.concat(new(pai_const,init_8bit(byte(trans[typ]))));
rttilist^.concat(new(pai_const,init_32bit(low)));
rttilist^.concat(new(pai_const,init_32bit(high)));
end;
begin
case typ of
s64bit :
begin
rttilist^.concat(new(pai_const,init_8bit(tkInt64)));
write_rtti_name;
{ low }
rttilist^.concat(new(pai_const,init_32bit($0)));
rttilist^.concat(new(pai_const,init_32bit($8000)));
{ high }
rttilist^.concat(new(pai_const,init_32bit($ffff)));
rttilist^.concat(new(pai_const,init_32bit($7fff)));
end;
u64bit :
begin
rttilist^.concat(new(pai_const,init_8bit(tkQWord)));
write_rtti_name;
{ low }
rttilist^.concat(new(pai_const,init_32bit($0)));
rttilist^.concat(new(pai_const,init_32bit($0)));
{ high }
rttilist^.concat(new(pai_const,init_32bit($0)));
rttilist^.concat(new(pai_const,init_32bit($8000)));
end;
bool8bit:
begin
rttilist^.concat(new(pai_const,init_8bit(tkBool)));
dointeger;
end;
uchar:
begin
rttilist^.concat(new(pai_const,init_8bit(tkWChar)));
dointeger;
end;
uwidechar:
begin
rttilist^.concat(new(pai_const,init_8bit(tkChar)));
dointeger;
end;
else
begin
rttilist^.concat(new(pai_const,init_8bit(tkInteger)));
dointeger;
end;
end;
end;
function torddef.is_publishable : boolean;
begin
is_publishable:=typ in [uchar..bool8bit];
end;
function torddef.gettypename : string;
const
names : array[tbasetype] of string[20] = ('<unknown type>',
'untyped','Char','Byte','Word','DWord','ShortInt',
'SmallInt','LongInt','Boolean','WordBool',
'LongBool','QWord','Int64','WideChar');
begin
gettypename:=names[typ];
end;
{****************************************************************************
TFLOATDEF
****************************************************************************}
constructor tfloatdef.init(t : tfloattype);
begin
inherited init;
deftype:=floatdef;
typ:=t;
setsize;
end;
constructor tfloatdef.load;
begin
inherited load;
deftype:=floatdef;
typ:=tfloattype(readbyte);
setsize;
end;
procedure tfloatdef.setsize;
begin
case typ of
f16bit : savesize:=2;
f32bit,
s32real : savesize:=4;
s64real : savesize:=8;
s80real : savesize:=extended_size;
s64comp : savesize:=8;
else
savesize:=0;
end;
end;
procedure tfloatdef.write;
begin
inherited write;
writebyte(byte(typ));
current_ppu^.writeentry(ibfloatdef);
end;
{$ifdef GDB}
function tfloatdef.stabstring : pchar;
begin
case typ of
s32real,
s64real : stabstring := strpnew('r'+
s32bitdef^.numberstring+';'+tostr(savesize)+';0;');
{ for fixed real use longint instead to be able to }
{ debug something at least }
f32bit:
stabstring := s32bitdef^.stabstring;
f16bit:
stabstring := strpnew('r'+s32bitdef^.numberstring+';0;'+
tostr($ffff)+';');
{ found this solution in stabsread.c from GDB v4.16 }
s64comp : stabstring := strpnew('r'+
s32bitdef^.numberstring+';-'+tostr(savesize)+';0;');
{$ifdef i386}
{ under dos at least you must give a size of twelve instead of 10 !! }
{ this is probably do to the fact that in gcc all is pushed in 4 bytes size }
s80real : stabstring := strpnew('r'+s32bitdef^.numberstring+';12;0;');
{$endif i386}
else
internalerror(10005);
end;
end;
{$endif GDB}
procedure tfloatdef.write_rtti_data;
const
{tfloattype = (s32real,s64real,s80real,s64bit,f16bit,f32bit);}
translate : array[tfloattype] of byte =
(ftSingle,ftDouble,ftExtended,ftComp,ftFixed16,ftFixed32);
begin
rttilist^.concat(new(pai_const,init_8bit(tkFloat)));
write_rtti_name;
rttilist^.concat(new(pai_const,init_8bit(translate[typ])));
end;
function tfloatdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
function tfloatdef.gettypename : string;
const
names : array[tfloattype] of string[20] = (
'Single','Double','Extended','Comp','Fixed','Fixed16');
begin
gettypename:=names[typ];
end;
{****************************************************************************
TFILEDEF
****************************************************************************}
constructor tfiledef.inittext;
begin
inherited init;
deftype:=filedef;
filetyp:=ft_text;
typedfiletype.reset;
setsize;
end;
constructor tfiledef.inituntyped;
begin
inherited init;
deftype:=filedef;
filetyp:=ft_untyped;
typedfiletype.reset;
setsize;
end;
constructor tfiledef.inittyped(const tt : ttype);
begin
inherited init;
deftype:=filedef;
filetyp:=ft_typed;
typedfiletype:=tt;
setsize;
end;
constructor tfiledef.inittypeddef(p : pdef);
begin
inherited init;
deftype:=filedef;
filetyp:=ft_typed;
typedfiletype.setdef(p);
setsize;
end;
constructor tfiledef.load;
begin
inherited load;
deftype:=filedef;
filetyp:=tfiletyp(readbyte);
if filetyp=ft_typed then
typedfiletype.load
else
typedfiletype.reset;
setsize;
end;
procedure tfiledef.deref;
begin
inherited deref;
if filetyp=ft_typed then
typedfiletype.resolve;
end;
procedure tfiledef.setsize;
begin
case filetyp of
ft_text :
savesize:=572;
ft_typed,
ft_untyped :
savesize:=316;
end;
end;
procedure tfiledef.write;
begin
inherited write;
writebyte(byte(filetyp));
if filetyp=ft_typed then
typedfiletype.write;
current_ppu^.writeentry(ibfiledef);
end;
{$ifdef GDB}
function tfiledef.stabstring : pchar;
begin
{$IfDef GDBknowsfiles}
case filetyp of
ft_typed :
stabstring := strpnew('d'+typedfiletype.def^.numberstring{+';'});
ft_untyped :
stabstring := strpnew('d'+voiddef^.numberstring{+';'});
ft_text :
stabstring := strpnew('d'+cchardef^.numberstring{+';'});
end;
{$Else}
{based on
FileRec = Packed Record
Handle,
Mode,
RecSize : longint;
_private : array[1..32] of byte;
UserData : array[1..16] of byte;
name : array[0..255] of char;
End; }
{ the buffer part is still missing !! (PM) }
{ but the string could become too long !! }
stabstring := strpnew('s'+tostr(savesize)+
'HANDLE:'+typeglobalnumber('longint')+',0,32;'+
'MODE:'+typeglobalnumber('longint')+',32,32;'+
'RECSIZE:'+typeglobalnumber('longint')+',64,32;'+
'_PRIVATE:ar'+typeglobalnumber('word')+';1;32;'+typeglobalnumber('byte')
+',96,256;'+
'USERDATA:ar'+typeglobalnumber('word')+';1;16;'+typeglobalnumber('byte')
+',352,128;'+
'NAME:ar'+typeglobalnumber('word')+';0;255;'+typeglobalnumber('char')
+',480,2048;;');
{$EndIf}
end;
procedure tfiledef.concatstabto(asmlist : paasmoutput);
begin
{ most file defs are unnamed !!! }
if ((typesym = nil) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches)) and
(is_def_stab_written = not_written) then
begin
if assigned(typedfiletype.def) then
forcestabto(asmlist,typedfiletype.def);
inherited concatstabto(asmlist);
end;
end;
{$endif GDB}
function tfiledef.gettypename : string;
begin
case filetyp of
ft_untyped:
gettypename:='File';
ft_typed:
gettypename:='File Of '+typedfiletype.def^.typename;
ft_text:
gettypename:='Text'
end;
end;
{****************************************************************************
TPOINTERDEF
****************************************************************************}
constructor tpointerdef.init(const tt : ttype);
begin
inherited init;
deftype:=pointerdef;
pointertype:=tt;
is_far:=false;
savesize:=target_os.size_of_pointer;
end;
constructor tpointerdef.initfar(const tt : ttype);
begin
inherited init;
deftype:=pointerdef;
pointertype:=tt;
is_far:=true;
savesize:=target_os.size_of_pointer;
end;
constructor tpointerdef.initdef(p : pdef);
var
t : ttype;
begin
t.setdef(p);
tpointerdef.init(t);
end;
constructor tpointerdef.initfardef(p : pdef);
var
t : ttype;
begin
t.setdef(p);
tpointerdef.initfar(t);
end;
constructor tpointerdef.load;
begin
inherited load;
deftype:=pointerdef;
pointertype.load;
is_far:=(readbyte<>0);
savesize:=target_os.size_of_pointer;
end;
destructor tpointerdef.done;
begin
if assigned(pointertype.def) and
(pointertype.def^.deftype=forwarddef) then
begin
dispose(pointertype.def,done);
pointertype.reset;
end;
inherited done;
end;
procedure tpointerdef.deref;
begin
inherited deref;
pointertype.resolve;
end;
procedure tpointerdef.write;
begin
inherited write;
pointertype.write;
writebyte(byte(is_far));
current_ppu^.writeentry(ibpointerdef);
end;
{$ifdef GDB}
function tpointerdef.stabstring : pchar;
begin
stabstring := strpnew('*'+pstoreddef(pointertype.def)^.numberstring);
end;
procedure tpointerdef.concatstabto(asmlist : paasmoutput);
var st,nb : string;
sym_line_no : longint;
begin
if assigned(pointertype.def) and
(pointertype.def^.deftype=forwarddef) then
exit;
if ( (typesym=nil) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches)) and
(is_def_stab_written = not_written) then
begin
is_def_stab_written := being_written;
if assigned(pointertype.def) and
(pointertype.def^.deftype in [recorddef,objectdef]) then
begin
nb:=pstoreddef(pointertype.def)^.numberstring;
{to avoid infinite recursion in record with next-like fields }
if pstoreddef(pointertype.def)^.is_def_stab_written = being_written then
begin
if assigned(pointertype.def^.typesym) then
begin
if assigned(typesym) then
begin
st := ptypesym(typesym)^.name;
sym_line_no:=ptypesym(typesym)^.fileinfo.line;
end
else
begin
st := ' ';
sym_line_no:=0;
end;
st := '"'+st+':t'+numberstring+'=*'+nb
+'=xs'+pointertype.def^.typesym^.name+':",'+tostr(N_LSYM)+',0,'+tostr(sym_line_no)+',0';
asmlist^.concat(new(pai_stabs,init(strpnew(st))));
end;
end
else
begin
is_def_stab_written := not_written;
inherited concatstabto(asmlist);
end;
is_def_stab_written := written;
end
else
begin
if assigned(pointertype.def) then
forcestabto(asmlist,pointertype.def);
is_def_stab_written := not_written;
inherited concatstabto(asmlist);
end;
end;
end;
{$endif GDB}
function tpointerdef.gettypename : string;
begin
gettypename:='^'+pointertype.def^.typename;
end;
{****************************************************************************
TCLASSREFDEF
****************************************************************************}
constructor tclassrefdef.init(def : pdef);
begin
inherited initdef(def);
deftype:=classrefdef;
end;
constructor tclassrefdef.load;
begin
{ be careful, tclassdefref inherits from tpointerdef }
tstoreddef.load;
deftype:=classrefdef;
pointertype.load;
is_far:=false;
savesize:=target_os.size_of_pointer;
end;
procedure tclassrefdef.write;
begin
{ be careful, tclassdefref inherits from tpointerdef }
tstoreddef.write;
pointertype.write;
current_ppu^.writeentry(ibclassrefdef);
end;
{$ifdef GDB}
function tclassrefdef.stabstring : pchar;
begin
stabstring:=strpnew(pvmtdef^.numberstring+';');
end;
procedure tclassrefdef.concatstabto(asmlist : paasmoutput);
begin
inherited concatstabto(asmlist);
end;
{$endif GDB}
function tclassrefdef.gettypename : string;
begin
gettypename:='Class Of '+pointertype.def^.typename;
end;
{***************************************************************************
TSETDEF
***************************************************************************}
{ For i386 smallsets work,
for m68k there are problems
can be test by compiling with -dusesmallset PM }
{$ifdef i386}
{$define usesmallset}
{$endif i386}
constructor tsetdef.init(s : pdef;high : longint);
begin
inherited init;
deftype:=setdef;
elementtype.setdef(s);
{$ifdef usesmallset}
{ small sets only working for i386 PM }
if high<32 then
begin
settype:=smallset;
{$ifdef testvarsets}
if aktsetalloc=0 THEN { $PACKSET Fixed?}
{$endif}
savesize:=Sizeof(longint)
{$ifdef testvarsets}
else {No, use $PACKSET VALUE for rounding}
savesize:=aktsetalloc*((high+aktsetalloc*8-1) DIV (aktsetalloc*8))
{$endif}
;
end
else
{$endif usesmallset}
if high<256 then
begin
settype:=normset;
savesize:=32;
end
else
{$ifdef testvarsets}
if high<$10000 then
begin
settype:=varset;
savesize:=4*((high+31) div 32);
end
else
{$endif testvarsets}
Message(sym_e_ill_type_decl_set);
end;
constructor tsetdef.load;
begin
inherited load;
deftype:=setdef;
elementtype.load;
settype:=tsettype(readbyte);
case settype of
normset : savesize:=32;
varset : savesize:=readlong;
smallset : savesize:=Sizeof(longint);
end;
end;
destructor tsetdef.done;
begin
inherited done;
end;
procedure tsetdef.write;
begin
inherited write;
elementtype.write;
writebyte(byte(settype));
if settype=varset then
writelong(savesize);
current_ppu^.writeentry(ibsetdef);
end;
{$ifdef GDB}
function tsetdef.stabstring : pchar;
begin
{ For small sets write a longint, which can at least be seen
in the current GDB's (PFV)
this is obsolete with GDBPAS !!
and anyhow creates problems with version 4.18!! PM
if settype=smallset then
stabstring := strpnew('r'+s32bitdef^.numberstring+';0;0xffffffff;')
else }
stabstring := strpnew('S'+pstoreddef(elementtype.def)^.numberstring);
end;
procedure tsetdef.concatstabto(asmlist : paasmoutput);
begin
if ( not assigned(typesym) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches)) and
(is_def_stab_written = not_written) then
begin
if assigned(elementtype.def) then
forcestabto(asmlist,elementtype.def);
inherited concatstabto(asmlist);
end;
end;
{$endif GDB}
procedure tsetdef.deref;
begin
inherited deref;
elementtype.resolve;
end;
procedure tsetdef.write_rtti_data;
begin
rttilist^.concat(new(pai_const,init_8bit(tkSet)));
write_rtti_name;
rttilist^.concat(new(pai_const,init_8bit(otULong)));
rttilist^.concat(new(pai_const_symbol,initname(elementtype.def^.get_rtti_label)));
end;
procedure tsetdef.write_child_rtti_data;
begin
elementtype.def^.get_rtti_label;
end;
function tsetdef.is_publishable : boolean;
begin
is_publishable:=settype=smallset;
end;
function tsetdef.gettypename : string;
begin
if assigned(elementtype.def) then
gettypename:='Set Of '+elementtype.def^.typename
else
gettypename:='Empty Set';
end;
{***************************************************************************
TFORMALDEF
***************************************************************************}
constructor tformaldef.init;
var
stregdef : boolean;
begin
stregdef:=registerdef;
registerdef:=false;
inherited init;
deftype:=formaldef;
registerdef:=stregdef;
{ formaldef must be registered at unit level !! }
if registerdef and assigned(current_module) then
if assigned(current_module^.localsymtable) then
psymtable(current_module^.localsymtable)^.registerdef(@self)
else if assigned(current_module^.globalsymtable) then
psymtable(current_module^.globalsymtable)^.registerdef(@self);
savesize:=target_os.size_of_pointer;
end;
constructor tformaldef.load;
begin
inherited load;
deftype:=formaldef;
savesize:=target_os.size_of_pointer;
end;
procedure tformaldef.write;
begin
inherited write;
current_ppu^.writeentry(ibformaldef);
end;
{$ifdef GDB}
function tformaldef.stabstring : pchar;
begin
stabstring := strpnew('formal'+numberstring+';');
end;
procedure tformaldef.concatstabto(asmlist : paasmoutput);
begin
{ formaldef can't be stab'ed !}
end;
{$endif GDB}
function tformaldef.gettypename : string;
begin
gettypename:='Var';
end;
{***************************************************************************
TARRAYDEF
***************************************************************************}
constructor tarraydef.init(l,h : longint;rd : pdef);
begin
inherited init;
deftype:=arraydef;
lowrange:=l;
highrange:=h;
rangetype.setdef(rd);
elementtype.reset;
IsVariant:=false;
IsConstructor:=false;
IsArrayOfConst:=false;
IsDynamicArray:=false;
rangenr:=0;
end;
constructor tarraydef.load;
begin
inherited load;
deftype:=arraydef;
{ the addresses are calculated later }
elementtype.load;
rangetype.load;
lowrange:=readlong;
highrange:=readlong;
IsArrayOfConst:=boolean(readbyte);
IsVariant:=false;
IsConstructor:=false;
IsDynamicArray:=false;
rangenr:=0;
end;
function tarraydef.getrangecheckstring : string;
begin
if (cs_create_smart in aktmoduleswitches) then
getrangecheckstring:='R_'+current_module^.modulename^+tostr(rangenr)
else
getrangecheckstring:='R_'+tostr(rangenr);
end;
procedure tarraydef.genrangecheck;
begin
if rangenr=0 then
begin
{ generates the data for range checking }
getlabelnr(rangenr);
if (cs_create_smart in aktmoduleswitches) then
datasegment^.concat(new(pai_symbol,initname_global(getrangecheckstring,8)))
else
datasegment^.concat(new(pai_symbol,initname(getrangecheckstring,8)));
if lowrange<=highrange then
begin
datasegment^.concat(new(pai_const,init_32bit(lowrange)));
datasegment^.concat(new(pai_const,init_32bit(highrange)));
end
{ for big arrays we need two bounds }
else
begin
datasegment^.concat(new(pai_const,init_32bit(lowrange)));
datasegment^.concat(new(pai_const,init_32bit($7fffffff)));
datasegment^.concat(new(pai_const,init_32bit($80000000)));
datasegment^.concat(new(pai_const,init_32bit(highrange)));
end;
end;
end;
procedure tarraydef.deref;
begin
inherited deref;
elementtype.resolve;
rangetype.resolve;
end;
procedure tarraydef.write;
begin
inherited write;
elementtype.write;
rangetype.write;
writelong(lowrange);
writelong(highrange);
writebyte(byte(IsArrayOfConst));
current_ppu^.writeentry(ibarraydef);
end;
{$ifdef GDB}
function tarraydef.stabstring : pchar;
begin
stabstring := strpnew('ar'+pstoreddef(rangetype.def)^.numberstring+';'
+tostr(lowrange)+';'+tostr(highrange)+';'+pstoreddef(elementtype.def)^.numberstring);
end;
procedure tarraydef.concatstabto(asmlist : paasmoutput);
begin
if (not assigned(typesym) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches))
and (is_def_stab_written = not_written) then
begin
{when array are inserted they have no definition yet !!}
if assigned(elementtype.def) then
inherited concatstabto(asmlist);
end;
end;
{$endif GDB}
function tarraydef.elesize : longint;
begin
if ((lowrange=0) and
(highrange=-1) and
(not IsArrayOfConst) and
(not IsVariant) and
(not IsDynamicArray)) or
IsConstructor then
begin
{ strings are stored by address only }
case elementtype.def^.deftype of
stringdef :
elesize:=4;
else
elesize:=elementtype.def^.size;
end;
end
else
elesize:=elementtype.def^.size;
end;
function tarraydef.size : longint;
begin
if IsDynamicArray then
begin
size:=4;
exit;
end;
{Tarraydef.size may never be called for an open array!}
if highrange<lowrange then
internalerror(99080501);
If (elesize>0) and
(
(highrange-lowrange = $7fffffff) or
{ () are needed around elesize-1 to avoid a possible
integer overflow for elesize=1 !! PM }
(($7fffffff div elesize + (elesize -1)) < (highrange - lowrange))
) Then
Begin
Message(sym_e_segment_too_large);
size := 4
End
Else size:=(highrange-lowrange+1)*elesize;
end;
function tarraydef.alignment : longint;
begin
{ alignment is the size of the elements }
if elementtype.def^.deftype=recorddef then
alignment:=elementtype.def^.alignment
else
alignment:=elesize;
end;
function tarraydef.needs_inittable : boolean;
begin
needs_inittable:=IsDynamicArray or elementtype.def^.needs_inittable;
end;
procedure tarraydef.write_child_rtti_data;
begin
elementtype.def^.get_rtti_label;
end;
procedure tarraydef.write_rtti_data;
begin
if IsDynamicArray then
rttilist^.concat(new(pai_const,init_8bit(tkdynarray)))
else
rttilist^.concat(new(pai_const,init_8bit(tkarray)));
write_rtti_name;
{ size of elements }
rttilist^.concat(new(pai_const,init_32bit(elesize)));
{ count of elements }
if not(IsDynamicArray) then
rttilist^.concat(new(pai_const,init_32bit(highrange-lowrange+1)));
{ element type }
rttilist^.concat(new(pai_const_symbol,initname(elementtype.def^.get_rtti_label)));
{ variant type }
// !!!!!!!!!!!!!!!!
end;
function tarraydef.gettypename : string;
begin
if isarrayofconst or isConstructor then
begin
if isvariant or ((highrange=-1) and (lowrange=0)) then
gettypename:='Array Of Const'
else
gettypename:='Array Of '+elementtype.def^.typename;
end
else if ((highrange=-1) and (lowrange=0)) or IsDynamicArray then
gettypename:='Array Of '+elementtype.def^.typename
else
begin
if rangetype.def^.deftype=enumdef then
gettypename:='Array['+rangetype.def^.typename+'] Of '+elementtype.def^.typename
else
gettypename:='Array['+tostr(lowrange)+'..'+
tostr(highrange)+'] Of '+elementtype.def^.typename
end;
end;
{***************************************************************************
trecorddef
***************************************************************************}
constructor trecorddef.init(p : psymtable);
begin
inherited init;
deftype:=recorddef;
symtable:=p;
symtable^.defowner := @self;
symtable^.dataalignment:=packrecordalignment[aktpackrecords];
end;
constructor trecorddef.load;
var
oldread_member : boolean;
begin
inherited load;
deftype:=recorddef;
savesize:=readlong;
oldread_member:=read_member;
read_member:=true;
symtable:=new(pstoredsymtable,loadas(recordsymtable));
read_member:=oldread_member;
symtable^.defowner := @self;
end;
destructor trecorddef.done;
begin
if assigned(symtable) then
dispose(symtable,done);
inherited done;
end;
function trecorddef.getsymtable(t:tgetsymtable):psymtable;
begin
if t=gs_record then
getsymtable:=symtable
else
getsymtable:=nil;
end;
var
binittable : boolean;
procedure check_rec_inittable(s : pnamedindexobject);
begin
if (not binittable) and
(psym(s)^.typ=varsym) and
assigned(pvarsym(s)^.vartype.def) then
begin
if (pvarsym(s)^.vartype.def^.deftype<>objectdef) or
not(is_class(pdef(pvarsym(s)^.vartype.def))) then
binittable:=pvarsym(s)^.vartype.def^.needs_inittable;
end;
end;
function trecorddef.needs_inittable : boolean;
var
oldb : boolean;
begin
{ there are recursive calls to needs_rtti possible, }
{ so we have to change to old value how else should }
{ we do that ? check_rec_rtti can't be a nested }
{ procedure of needs_rtti ! }
oldb:=binittable;
binittable:=false;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}check_rec_inittable);
needs_inittable:=binittable;
binittable:=oldb;
end;
procedure trecorddef.deref;
var
oldrecsyms : psymtable;
begin
inherited deref;
oldrecsyms:=aktrecordsymtable;
aktrecordsymtable:=symtable;
{ now dereference the definitions }
pstoredsymtable(symtable)^.deref;
aktrecordsymtable:=oldrecsyms;
end;
procedure trecorddef.write;
var
oldread_member : boolean;
begin
oldread_member:=read_member;
read_member:=true;
inherited write;
writelong(savesize);
current_ppu^.writeentry(ibrecorddef);
pstoredsymtable(symtable)^.writeas;
read_member:=oldread_member;
end;
function trecorddef.size:longint;
begin
size:=symtable^.datasize;
end;
function trecorddef.alignment:longint;
var
l : longint;
hp : pvarsym;
begin
{ also check the first symbol for it's size, because a
packed record has dataalignment of 1, but the first
sym could be a longint which should be aligned on 4 bytes,
this is compatible with C record packing (PFV) }
hp:=pvarsym(symtable^.symindex^.first);
if assigned(hp) then
begin
l:=hp^.vartype.def^.size;
if l>symtable^.dataalignment then
begin
if l>=4 then
alignment:=4
else
if l>=2 then
alignment:=2
else
alignment:=1;
end
else
alignment:=symtable^.dataalignment;
end
else
alignment:=symtable^.dataalignment;
end;
{$ifdef GDB}
Const StabRecString : pchar = Nil;
StabRecSize : longint = 0;
{RecOffset : Longint = 0;}
procedure addname(p : pnamedindexobject);
var
news, newrec : pchar;
spec : string[3];
size : longint;
begin
{ static variables from objects are like global objects }
if (sp_static in psym(p)^.symoptions) then
exit;
If psym(p)^.typ = varsym then
begin
if (sp_protected in psym(p)^.symoptions) then
spec:='/1'
else if (sp_private in psym(p)^.symoptions) then
spec:='/0'
else
spec:='';
if not assigned(pvarsym(p)^.vartype.def) then
writeln(pvarsym(p)^.name);
{ class fields are pointers PM, obsolete now PM }
{if (pvarsym(p)^.vartype.def^.deftype=objectdef) and
pobjectdef(pvarsym(p)^.vartype.def)^.is_class then
spec:=spec+'*'; }
size:=pvarsym(p)^.vartype.def^.size;
{ open arrays made overflows !! }
if size>$fffffff then
size:=$fffffff;
newrec := strpnew(p^.name+':'+spec+pstoreddef(pvarsym(p)^.vartype.def)^.numberstring
+','+tostr(pvarsym(p)^.address*8)+','
+tostr(size*8)+';');
if strlen(StabRecString) + strlen(newrec) >= StabRecSize-256 then
begin
getmem(news,stabrecsize+memsizeinc);
strcopy(news,stabrecstring);
freemem(stabrecstring,stabrecsize);
stabrecsize:=stabrecsize+memsizeinc;
stabrecstring:=news;
end;
strcat(StabRecstring,newrec);
strdispose(newrec);
{This should be used for case !!
RecOffset := RecOffset + pvarsym(p)^.vartype.def^.size;}
end;
end;
function trecorddef.stabstring : pchar;
Var oldrec : pchar;
oldsize : longint;
begin
oldrec := stabrecstring;
oldsize:=stabrecsize;
GetMem(stabrecstring,memsizeinc);
stabrecsize:=memsizeinc;
strpcopy(stabRecString,'s'+tostr(size));
{RecOffset := 0;}
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}addname);
{ FPC doesn't want to convert a char to a pchar}
{ is this a bug ? }
strpcopy(strend(StabRecString),';');
stabstring := strnew(StabRecString);
Freemem(stabrecstring,stabrecsize);
stabrecstring := oldrec;
stabrecsize:=oldsize;
end;
procedure trecorddef.concatstabto(asmlist : paasmoutput);
begin
if (not assigned(typesym) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches)) and
(is_def_stab_written = not_written) then
inherited concatstabto(asmlist);
end;
{$endif GDB}
var
count : longint;
procedure count_inittable_fields(sym : pnamedindexobject);
begin
if ((psym(sym)^.typ=varsym) and
pvarsym(sym)^.vartype.def^.needs_inittable)
and (pvarsym(sym)^.vartype.def^.deftype<>objectdef) or
not(is_class(pdef(pvarsym(sym)^.vartype.def))) then
inc(count);
end;
procedure count_fields(sym : pnamedindexobject);
begin
inc(count);
end;
procedure write_field_inittable(sym : pnamedindexobject);
begin
if ((psym(sym)^.typ=varsym) and
pvarsym(sym)^.vartype.def^.needs_inittable) and
((pvarsym(sym)^.vartype.def^.deftype<>objectdef) or
not(is_class(pvarsym(sym)^.vartype.def))) then
begin
rttilist^.concat(new(pai_const_symbol,init(pstoreddef(pvarsym(sym)^.vartype.def)^.get_inittable_label)));
rttilist^.concat(new(pai_const,init_32bit(pvarsym(sym)^.address)));
end;
end;
procedure write_field_rtti(sym : pnamedindexobject);
begin
rttilist^.concat(new(pai_const_symbol,initname(pvarsym(sym)^.vartype.def^.get_rtti_label)));
rttilist^.concat(new(pai_const,init_32bit(pvarsym(sym)^.address)));
end;
procedure generate_child_inittable(sym:pnamedindexobject);
begin
if (psym(sym)^.typ=varsym) and
pvarsym(sym)^.vartype.def^.needs_inittable then
{ force inittable generation }
pstoreddef(pvarsym(sym)^.vartype.def)^.get_inittable_label;
end;
procedure generate_child_rtti(sym : pnamedindexobject);
begin
pvarsym(sym)^.vartype.def^.get_rtti_label;
end;
procedure trecorddef.write_child_rtti_data;
begin
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}generate_child_rtti);
end;
procedure trecorddef.write_child_init_data;
begin
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}generate_child_inittable);
end;
procedure trecorddef.write_rtti_data;
begin
rttilist^.concat(new(pai_const,init_8bit(tkrecord)));
write_rtti_name;
rttilist^.concat(new(pai_const,init_32bit(size)));
count:=0;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}count_fields);
rttilist^.concat(new(pai_const,init_32bit(count)));
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}write_field_rtti);
end;
procedure trecorddef.write_init_data;
begin
rttilist^.concat(new(pai_const,init_8bit(tkrecord)));
write_rtti_name;
rttilist^.concat(new(pai_const,init_32bit(size)));
count:=0;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}count_inittable_fields);
rttilist^.concat(new(pai_const,init_32bit(count)));
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}write_field_inittable);
end;
function trecorddef.gettypename : string;
begin
gettypename:='<record type>'
end;
{***************************************************************************
TABSTRACTPROCDEF
***************************************************************************}
constructor tabstractprocdef.init;
begin
inherited init;
new(para,init);
minparacount:=0;
maxparacount:=0;
fpu_used:=0;
proctypeoption:=potype_none;
proccalloptions:=[];
procoptions:=[];
rettype.setdef(voiddef);
symtablelevel:=0;
savesize:=target_os.size_of_pointer;
end;
destructor tabstractprocdef.done;
begin
dispose(para,done);
inherited done;
end;
procedure tabstractprocdef.concatpara(tt:ttype;vsp : tvarspez;defval:psym);
var
hp : pparaitem;
begin
new(hp,init);
hp^.paratyp:=vsp;
hp^.paratype:=tt;
hp^.register:=R_NO;
hp^.defaultvalue:=defval;
para^.insert(hp);
if not assigned(defval) then
inc(minparacount);
inc(maxparacount);
end;
{ all functions returning in FPU are
assume to use 2 FPU registers
until the function implementation
is processed PM }
procedure tabstractprocdef.test_if_fpu_result;
begin
if assigned(rettype.def) and
(rettype.def^.deftype=floatdef) and
(pfloatdef(rettype.def)^.typ<>f32bit) then
fpu_used:=2;
end;
procedure tabstractprocdef.deref;
var
hp : pparaitem;
begin
inherited deref;
rettype.resolve;
hp:=pparaitem(para^.first);
while assigned(hp) do
begin
hp^.paratype.resolve;
resolvesym(psym(hp^.defaultvalue));
hp:=pparaitem(hp^.next);
end;
end;
constructor tabstractprocdef.load;
var
hp : pparaitem;
count,i : word;
begin
inherited load;
new(para,init);
minparacount:=0;
maxparacount:=0;
rettype.load;
fpu_used:=readbyte;
proctypeoption:=tproctypeoption(readlong);
readsmallset(proccalloptions);
readsmallset(procoptions);
count:=readword;
savesize:=target_os.size_of_pointer;
for i:=1 to count do
begin
new(hp,init);
hp^.paratyp:=tvarspez(readbyte);
{ hp^.register:=tregister(readbyte); }
hp^.register:=R_NO;
hp^.paratype.load;
hp^.defaultvalue:=psym(readderef);
if not assigned(hp^.defaultvalue) then
inc(minparacount);
inc(maxparacount);
para^.concat(hp);
end;
end;
procedure tabstractprocdef.write;
var
hp : pparaitem;
oldintfcrc : boolean;
begin
inherited write;
rettype.write;
oldintfcrc:=current_ppu^.do_interface_crc;
current_ppu^.do_interface_crc:=false;
writebyte(fpu_used);
writelong(ord(proctypeoption));
writesmallset(proccalloptions);
writesmallset(procoptions);
current_ppu^.do_interface_crc:=oldintfcrc;
writeword(maxparacount);
hp:=pparaitem(para^.first);
while assigned(hp) do
begin
writebyte(byte(hp^.paratyp));
{ writebyte(byte(hp^.register)); }
hp^.paratype.write;
writederef(hp^.defaultvalue);
hp:=pparaitem(hp^.next);
end;
end;
function tabstractprocdef.para_size(alignsize:longint) : longint;
var
pdc : pparaitem;
l : longint;
begin
l:=0;
pdc:=pparaitem(para^.first);
while assigned(pdc) do
begin
case pdc^.paratyp of
vs_out,
vs_var : inc(l,target_os.size_of_pointer);
vs_value,
vs_const : if push_addr_param(pdc^.paratype.def) then
inc(l,target_os.size_of_pointer)
else
inc(l,pdc^.paratype.def^.size);
end;
l:=align(l,alignsize);
pdc:=pparaitem(pdc^.next);
end;
para_size:=l;
end;
function tabstractprocdef.demangled_paras : string;
var
hs,s : string;
hp : pparaitem;
hpc : pconstsym;
begin
s:='(';
hp:=pparaitem(para^.last);
while assigned(hp) do
begin
if assigned(hp^.paratype.def^.typesym) then
s:=s+hp^.paratype.def^.typesym^.realname
else if hp^.paratyp=vs_var then
s:=s+'var'
else if hp^.paratyp=vs_const then
s:=s+'const'
else if hp^.paratyp=vs_out then
s:=s+'out';
{ default value }
if assigned(hp^.defaultvalue) then
begin
hpc:=pconstsym(hp^.defaultvalue);
hs:='';
case hpc^.consttyp of
conststring,
constresourcestring :
hs:=strpas(pchar(tpointerord(hpc^.value)));
constreal :
str(pbestreal(tpointerord(hpc^.value))^,hs);
constord,
constpointer :
hs:=tostr(hpc^.value);
constbool :
begin
if hpc^.value<>0 then
hs:='TRUE'
else
hs:='FALSE';
end;
constnil :
hs:='nil';
constchar :
hs:=chr(hpc^.value);
constset :
hs:='<set>';
end;
if hs<>'' then
s:=s+'="'+hs+'"';
end;
hp:=pparaitem(hp^.previous);
if assigned(hp) then
s:=s+',';
end;
s:=s+')';
demangled_paras:=s;
end;
function tabstractprocdef.proccalloption2str : string;
type
tproccallopt=record
mask : tproccalloption;
str : string[30];
end;
const
proccallopts=13;
proccallopt : array[1..proccallopts] of tproccallopt=(
(mask:pocall_none; str:''),
(mask:pocall_clearstack; str:'ClearStack'),
(mask:pocall_leftright; str:'LeftRight'),
(mask:pocall_cdecl; str:'CDecl'),
(mask:pocall_register; str:'Register'),
(mask:pocall_stdcall; str:'StdCall'),
(mask:pocall_safecall; str:'SafeCall'),
(mask:pocall_palmossyscall;str:'PalmOSSysCall'),
(mask:pocall_system; str:'System'),
(mask:pocall_inline; str:'Inline'),
(mask:pocall_internproc; str:'InternProc'),
(mask:pocall_internconst; str:'InternConst'),
(mask:pocall_cdecl; str:'CPPDecl')
);
var
s : string;
i : longint;
first : boolean;
begin
s:='';
first:=true;
for i:=1to proccallopts do
if (proccallopt[i].mask in proccalloptions) then
begin
if first then
first:=false
else
s:=s+';';
s:=s+proccallopt[i].str;
end;
proccalloption2str:=s;
end;
{$ifdef GDB}
function tabstractprocdef.stabstring : pchar;
begin
stabstring := strpnew('abstractproc'+numberstring+';');
end;
procedure tabstractprocdef.concatstabto(asmlist : paasmoutput);
begin
if (not assigned(typesym) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches))
and (is_def_stab_written = not_written) then
begin
if assigned(rettype.def) then forcestabto(asmlist,rettype.def);
inherited concatstabto(asmlist);
end;
end;
{$endif GDB}
{***************************************************************************
TPROCDEF
***************************************************************************}
constructor tprocdef.init;
begin
inherited init;
deftype:=procdef;
_mangledname:=nil;
nextoverloaded:=nil;
fileinfo:=aktfilepos;
extnumber:=-1;
localst:=new(pstoredsymtable,init(localsymtable));
parast:=new(pstoredsymtable,init(parasymtable));
localst^.defowner:=@self;
parast^.defowner:=@self;
{ this is used by insert
to check same names in parast and localst }
localst^.next:=parast;
defref:=nil;
crossref:=nil;
lastwritten:=nil;
refcount:=0;
if (cs_browser in aktmoduleswitches) and make_ref then
begin
defref:=new(pref,init(defref,@akttokenpos));
inc(refcount);
end;
lastref:=defref;
{ first, we assume that all registers are used }
{$ifdef newcg}
usedregisters:=[firstreg..lastreg];
{$else newcg}
{$ifdef i386}
usedregisters:=$ff;
{$endif i386}
{$ifdef m68k}
usedregisters:=$FFFF;
{$endif}
{$endif newcg}
forwarddef:=true;
interfacedef:=false;
hasforward:=false;
_class := nil;
code:=nil;
regvarinfo := nil;
count:=false;
is_used:=false;
end;
constructor tprocdef.load;
begin
inherited load;
deftype:=procdef;
{$ifdef newcg}
readnormalset(usedregisters);
{$else newcg}
{$ifdef i386}
usedregisters:=readbyte;
{$endif i386}
{$ifdef m68k}
usedregisters:=readword;
{$endif}
{$endif newcg}
_mangledname:=stringdup(readstring);
extnumber:=readlong;
nextoverloaded:=pprocdef(readderef);
_class := pobjectdef(readderef);
readposinfo(fileinfo);
if (cs_link_deffile in aktglobalswitches) and
(tf_need_export in target_info.flags) and
(po_exports in procoptions) then
deffile.AddExport(mangledname);
parast:=new(pstoredsymtable,loadas(parasymtable));
parast^.defowner:=@self;
{new(localst,loadas(localsymtable));
localst^.defowner:=@self;
parast^.next:=localst;
localst^.next:=owner;}
forwarddef:=false;
interfacedef:=false;
hasforward:=false;
code := nil;
regvarinfo := nil;
lastref:=nil;
lastwritten:=nil;
defref:=nil;
refcount:=0;
count:=true;
is_used:=false;
end;
function tprocdef.fullprocname:string;
var
s : string;
begin
s:='';
if assigned(_class) then
s:=_class^.objname^+'.';
s:=s+procsym^.realname+demangled_paras;
fullprocname:=s;
end;
function tprocdef.getsymtable(t:tgetsymtable):psymtable;
begin
case t of
gs_local :
getsymtable:=localst;
gs_para :
getsymtable:=parast;
else
getsymtable:=nil;
end;
end;
Const local_symtable_index : longint = $8001;
procedure tprocdef.load_references;
var
pos : tfileposinfo;
{$ifndef NOLOCALBROWSER}
oldsymtablestack,
st : psymtable;
{$endif ndef NOLOCALBROWSER}
move_last : boolean;
begin
move_last:=lastwritten=lastref;
while (not current_ppu^.endofentry) do
begin
readposinfo(pos);
inc(refcount);
lastref:=new(pref,init(lastref,@pos));
lastref^.is_written:=true;
if refcount=1 then
defref:=lastref;
end;
if move_last then
lastwritten:=lastref;
if ((current_module^.flags and uf_local_browser)<>0)
and is_in_current then
begin
{$ifndef NOLOCALBROWSER}
oldsymtablestack:=symtablestack;
st:=aktlocalsymtable;
parast:=new(pstoredsymtable,loadas(parasymtable));
parast^.defowner:=@self;
aktlocalsymtable:=parast;
pstoredsymtable(parast)^.deref;
parast^.next:=owner;
pstoredsymtable(parast)^.load_browser;
aktlocalsymtable:=st;
localst:=new(pstoredsymtable,loadas(localsymtable));
localst^.defowner:=@self;
aktlocalsymtable:=localst;
symtablestack:=parast;
pstoredsymtable(localst)^.deref;
localst^.next:=parast;
pstoredsymtable(localst)^.load_browser;
aktlocalsymtable:=st;
symtablestack:=oldsymtablestack;
{$endif ndef NOLOCALBROWSER}
end;
end;
function tprocdef.write_references : boolean;
var
ref : pref;
{$ifndef NOLOCALBROWSER}
st : psymtable;
pdo : pobjectdef;
{$endif ndef NOLOCALBROWSER}
move_last : boolean;
begin
move_last:=lastwritten=lastref;
if move_last and (((current_module^.flags and uf_local_browser)=0)
or not is_in_current) then
exit;
{ write address of this symbol }
writederef(@self);
{ write refs }
if assigned(lastwritten) then
ref:=lastwritten
else
ref:=defref;
while assigned(ref) do
begin
if ref^.moduleindex=current_module^.unit_index then
begin
writeposinfo(ref^.posinfo);
ref^.is_written:=true;
if move_last then
lastwritten:=ref;
end
else if not ref^.is_written then
move_last:=false
else if move_last then
lastwritten:=ref;
ref:=ref^.nextref;
end;
current_ppu^.writeentry(ibdefref);
write_references:=true;
if ((current_module^.flags and uf_local_browser)<>0)
and is_in_current then
begin
{$ifndef NOLOCALBROWSER}
pdo:=_class;
if (owner^.symtabletype<>localsymtable) then
while assigned(pdo) do
begin
if pdo^.symtable<>aktrecordsymtable then
begin
pdo^.symtable^.unitid:=local_symtable_index;
inc(local_symtable_index);
end;
pdo:=pdo^.childof;
end;
{ we need TESTLOCALBROWSER para and local symtables
PPU files are then easier to read PM }
if not assigned(parast) then
parast:=new(pstoredsymtable,init(parasymtable));
parast^.defowner:=@self;
st:=aktlocalsymtable;
aktlocalsymtable:=parast;
pstoredsymtable(parast)^.writeas;
parast^.unitid:=local_symtable_index;
inc(local_symtable_index);
pstoredsymtable(parast)^.write_browser;
if not assigned(localst) then
localst:=new(pstoredsymtable,init(localsymtable));
localst^.defowner:=@self;
aktlocalsymtable:=localst;
pstoredsymtable(localst)^.writeas;
localst^.unitid:=local_symtable_index;
inc(local_symtable_index);
pstoredsymtable(localst)^.write_browser;
aktlocalsymtable:=st;
{ decrement for }
local_symtable_index:=local_symtable_index-2;
pdo:=_class;
if (owner^.symtabletype<>localsymtable) then
while assigned(pdo) do
begin
if pdo^.symtable<>aktrecordsymtable then
dec(local_symtable_index);
pdo:=pdo^.childof;
end;
{$endif ndef NOLOCALBROWSER}
end;
end;
destructor tprocdef.done;
begin
if assigned(defref) then
begin
defref^.freechain;
dispose(defref,done);
end;
if assigned(parast) then
dispose(parast,done);
if assigned(localst) and (localst^.symtabletype<>staticsymtable) then
dispose(localst,done);
if (pocall_inline in proccalloptions) and assigned(code) then
tnode(code).free;
if assigned(regvarinfo) then
dispose(pregvarinfo(regvarinfo));
if (po_msgstr in procoptions) then
strdispose(messageinf.str);
if assigned(_mangledname) then
stringdispose(_mangledname);
inherited done;
end;
procedure tprocdef.write;
var
oldintfcrc : boolean;
begin
inherited write;
oldintfcrc:=current_ppu^.do_interface_crc;
current_ppu^.do_interface_crc:=false;
{ set all registers to used for simplified compilation PM }
if simplify_ppu then
begin
{$ifdef newcg}
usedregisters:=[firstreg..lastreg];
{$else newcg}
{$ifdef i386}
usedregisters:=$ff;
{$endif i386}
{$ifdef m68k}
usedregisters:=$ffff;
{$endif}
{$endif newcg}
end;
{$ifdef newcg}
writenormalset(usedregisters);
{$else newcg}
{$ifdef i386}
writebyte(usedregisters);
{$endif i386}
{$ifdef m68k}
writeword(usedregisters);
{$endif}
{$endif newcg}
current_ppu^.do_interface_crc:=oldintfcrc;
writestring(mangledname);
writelong(extnumber);
if (proctypeoption<>potype_operator) then
writederef(nextoverloaded)
else
begin
{ only write the overloads from the same unit }
if assigned(nextoverloaded) and
(nextoverloaded^.owner=owner) then
writederef(nextoverloaded)
else
writederef(nil);
end;
writederef(_class);
writeposinfo(fileinfo);
if (pocall_inline in proccalloptions) then
begin
{ we need to save
- the para and the local symtable
- the code ptree !! PM
writesymtable(parast);
writesymtable(localst);
writeptree(ptree(code));
}
end;
current_ppu^.writeentry(ibprocdef);
{ Save the para and local symtable, for easier reading
save both always, they don't influence the interface crc }
oldintfcrc:=current_ppu^.do_interface_crc;
current_ppu^.do_interface_crc:=false;
if not assigned(parast) then
begin
parast:=new(pstoredsymtable,init(parasymtable));
parast^.defowner:=@self;
end;
pstoredsymtable(parast)^.writeas;
{if not assigned(localst) then
begin
localst:=new(pstoredsymtable,init(localsymtable));
localst^.defowner:=@self;
end;
localst^.writeas;}
current_ppu^.do_interface_crc:=oldintfcrc;
end;
function tprocdef.haspara:boolean;
begin
haspara:=assigned(parast^.symindex^.first);
end;
{$ifdef GDB}
procedure addparaname(p : psym);
var vs : char;
begin
if pvarsym(p)^.varspez = vs_value then vs := '1'
else vs := '0';
strpcopy(strend(StabRecString),p^.name+':'+pstoreddef(pvarsym(p)^.vartype.def)^.numberstring+','+vs+';');
end;
function tprocdef.stabstring : pchar;
var
i : longint;
oldrec : pchar;
begin
oldrec := stabrecstring;
getmem(StabRecString,1024);
strpcopy(StabRecString,'f'+pstoreddef(rettype.def)^.numberstring);
i:=maxparacount;
if i>0 then
begin
strpcopy(strend(StabRecString),','+tostr(i)+';');
(* confuse gdb !! PM
if assigned(parast) then
parast^.foreach({$ifdef FPCPROCVAR}@{$endif}addparaname)
else
begin
param := para1;
i := 0;
while assigned(param) do
begin
inc(i);
if param^.paratyp = vs_value then vartyp := '1' else vartyp := '0';
{Here we have lost the parameter names !!}
{using lower case parameters }
strpcopy(strend(stabrecstring),'p'+tostr(i)
+':'+param^.paratype.def^.numberstring+','+vartyp+';');
param := param^.next;
end;
end; *)
{strpcopy(strend(StabRecString),';');}
end;
stabstring := strnew(stabrecstring);
freemem(stabrecstring,1024);
stabrecstring := oldrec;
end;
procedure tprocdef.concatstabto(asmlist : paasmoutput);
begin
end;
{$endif GDB}
procedure tprocdef.deref;
var
oldsymtablestack,
oldlocalsymtable : psymtable;
begin
inherited deref;
resolvedef(pdef(nextoverloaded));
resolvedef(pdef(_class));
{ parast }
oldsymtablestack:=symtablestack;
oldlocalsymtable:=aktlocalsymtable;
aktlocalsymtable:=parast;
pstoredsymtable(parast)^.deref;
{symtablestack:=parast;
aktlocalsymtable:=localst;
localst^.deref;}
aktlocalsymtable:=oldlocalsymtable;
symtablestack:=oldsymtablestack;
end;
function tprocdef.mangledname : string;
begin
if assigned(_mangledname) then
mangledname:=_mangledname^
else
mangledname:='';
if count then
is_used:=true;
end;
function tprocdef.cplusplusmangledname : string;
function getcppparaname(p : pdef) : string;
const
ordtype2str : array[tbasetype] of string[2] = (
'','','c',
'Uc','Us','Ui',
'Sc','s','i',
'b','b','b',
'Us','x','w');
var
s : string;
begin
case p^.deftype of
orddef:
s:=ordtype2str[porddef(p)^.typ];
pointerdef:
s:='P'+getcppparaname(ppointerdef(p)^.pointertype.def);
else
internalerror(2103001);
end;
getcppparaname:=s;
end;
var
s,s2 : string;
param : pparaitem;
begin
s := procsym^.realname;
if procsym^.owner^.symtabletype=objectsymtable then
begin
s2:=upper(pobjectdef(procsym^.owner^.defowner)^.typesym^.realname);
case proctypeoption of
potype_destructor:
s:='_$_'+tostr(length(s2))+s2;
potype_constructor:
s:='___'+tostr(length(s2))+s2;
else
s:='_'+s+'__'+tostr(length(s2))+s2;
end;
end
else s:=s+'__';
s:=s+'F';
{ concat modifiers }
{ !!!!! }
{ now we handle the parameters }
param := pparaitem(para^.first);
if assigned(param) then
while assigned(param) do
begin
s2:=getcppparaname(param^.paratype.def);
if param^.paratyp in [vs_var,vs_out] then
s2:='R'+s2;
s:=s+s2;
param:=pparaitem(param^.next);
end
else
s:=s+'v';
cplusplusmangledname:=s;
end;
procedure tprocdef.setmangledname(const s : string);
begin
if assigned(_mangledname) then
begin
{$ifdef MEMDEBUG}
dec(manglenamesize,length(_mangledname^));
{$endif}
stringdispose(_mangledname);
end;
_mangledname:=stringdup(s);
{$ifdef MEMDEBUG}
inc(manglenamesize,length(s));
{$endif}
{$ifdef EXTDEBUG}
if assigned(parast) then
begin
stringdispose(parast^.name);
parast^.name:=stringdup('args of '+s);
end;
if assigned(localst) then
begin
stringdispose(localst^.name);
localst^.name:=stringdup('locals of '+s);
end;
{$endif}
end;
{***************************************************************************
TPROCVARDEF
***************************************************************************}
constructor tprocvardef.init;
begin
inherited init;
deftype:=procvardef;
end;
constructor tprocvardef.load;
begin
inherited load;
deftype:=procvardef;
end;
procedure tprocvardef.write;
begin
{ here we cannot get a real good value so just give something }
{ plausible (PM) }
{ a more secure way would be
to allways store in a temp }
if is_fpu(rettype.def) then
fpu_used:=2
else
fpu_used:=0;
inherited write;
current_ppu^.writeentry(ibprocvardef);
end;
function tprocvardef.size : longint;
begin
if (po_methodpointer in procoptions) then
size:=2*target_os.size_of_pointer
else
size:=target_os.size_of_pointer;
end;
{$ifdef GDB}
function tprocvardef.stabstring : pchar;
var
nss : pchar;
{ i : longint; }
begin
{ i := maxparacount; }
getmem(nss,1024);
{ it is not a function but a function pointer !! (PM) }
strpcopy(nss,'*f'+pstoreddef(rettype.def)^.numberstring{+','+tostr(i)}+';');
{ this confuses gdb !!
we should use 'F' instead of 'f' but
as we use c++ language mode
it does not like that either
Please do not remove this part
might be used once
gdb for pascal is ready PM }
(*
param := para1;
i := 0;
while assigned(param) do
begin
inc(i);
if param^.paratyp = vs_value then vartyp := '1' else vartyp := '0';
{Here we have lost the parameter names !!}
pst := strpnew('p'+tostr(i)+':'+param^.paratype.def^.numberstring+','+vartyp+';');
strcat(nss,pst);
strdispose(pst);
param := param^.next;
end; *)
{strpcopy(strend(nss),';');}
stabstring := strnew(nss);
freemem(nss,1024);
end;
procedure tprocvardef.concatstabto(asmlist : paasmoutput);
begin
if ( not assigned(typesym) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches))
and (is_def_stab_written = not_written) then
inherited concatstabto(asmlist);
is_def_stab_written:=written;
end;
{$endif GDB}
procedure tprocvardef.write_rtti_data;
var
pdc : pparaitem;
methodkind, paraspec : byte;
begin
if po_methodpointer in procoptions then
begin
{ write method id and name }
rttilist^.concat(new(pai_const,init_8bit(tkmethod)));
write_rtti_name;
{ write kind of method (can only be function or procedure)}
if rettype.def = pdef(voiddef) then { ### typecast shoudln't be necessary! (sg) }
methodkind := mkProcedure
else
methodkind := mkFunction;
rttilist^.concat(new(pai_const,init_8bit(methodkind)));
{ get # of parameters }
rttilist^.concat(new(pai_const,init_8bit(maxparacount)));
{ write parameter info. The parameters must be written in reverse order
if this method uses right to left parameter pushing! }
if (pocall_leftright in proccalloptions) then
pdc:=pparaitem(para^.last)
else
pdc:=pparaitem(para^.first);
while assigned(pdc) do
begin
case pdc^.paratyp of
vs_value: paraspec := 0;
vs_const: paraspec := pfConst;
vs_var : paraspec := pfVar;
vs_out : paraspec := pfOut;
end;
{ write flags for current parameter }
rttilist^.concat(new(pai_const,init_8bit(paraspec)));
{ write name of current parameter ### how can I get this??? (sg)}
rttilist^.concat(new(pai_const,init_8bit(0)));
{ write name of type of current parameter }
pstoreddef(pdc^.paratype.def)^.write_rtti_name;
if (pocall_leftright in proccalloptions) then
pdc:=pparaitem(pdc^.previous)
else
pdc:=pparaitem(pdc^.next);
end;
{ write name of result type }
pstoreddef(rettype.def)^.write_rtti_name;
end;
end;
procedure tprocvardef.write_child_rtti_data;
begin
{!!!!!!!!}
end;
function tprocvardef.is_publishable : boolean;
begin
is_publishable:=(po_methodpointer in procoptions);
end;
function tprocvardef.gettypename : string;
begin
if assigned(rettype.def) and
(rettype.def<>pdef(voiddef)) then
gettypename:='<procedure variable type of function'+demangled_paras+
':'+rettype.def^.gettypename+';'+proccalloption2str+'>'
else
gettypename:='<procedure variable type of procedure'+demangled_paras+
';'+proccalloption2str+'>';
end;
{***************************************************************************
TOBJECTDEF
***************************************************************************}
{$ifdef GDB}
const
vtabletype : word = 0;
vtableassigned : boolean = false;
{$endif GDB}
constructor tobjectdef.init(ot : tobjectdeftype;const n : string;c : pobjectdef);
begin
inherited init;
deftype:=objectdef;
objectoptions:=[];
childof:=nil;
symtable:=new(pstoredsymtable,init(objectsymtable));
symtable^.name := stringdup(n);
{ create space for vmt !! }
vmt_offset:=0;
symtable^.datasize:=0;
symtable^.defowner:=@self;
symtable^.dataalignment:=packrecordalignment[aktpackrecords];
set_parent(c);
objname:=stringdup(n);
lastvtableindex:=0;
objecttype:=ot;
{ set up guid }
isiidguidvalid:=true; { default null guid }
fillchar(iidguid,sizeof(iidguid),0); { default null guid }
iidstr:=stringdup(''); { default is empty string }
{ set<65>p implemented interfaces }
if objecttype in [odt_class,odt_interfacecorba] then
new(implementedinterfaces,init)
else
implementedinterfaces:=nil;
{$ifdef GDB}
writing_stabs:=false;
classglobalnb:=0;
classptrglobalnb:=0;
{$endif GDB}
end;
constructor tobjectdef.load;
var
oldread_member : boolean;
i,implintfcount: longint;
begin
inherited load;
deftype:=objectdef;
objecttype:=tobjectdeftype(readbyte);
savesize:=readlong;
vmt_offset:=readlong;
objname:=stringdup(readstring);
childof:=pobjectdef(readderef);
readsmallset(objectoptions);
has_rtti:=boolean(readbyte);
{ load guid }
iidstr:=nil;
if objecttype in [odt_interfacecom,odt_interfacecorba] then
begin
isiidguidvalid:=boolean(readbyte);
readguid(iidguid);
iidstr:=stringdup(readstring);
lastvtableindex:=readlong;
end;
{ load implemented interfaces }
if objecttype in [odt_class,odt_interfacecorba] then
begin
new(implementedinterfaces,init);
implintfcount:=readlong;
for i:=1 to implintfcount do
begin
implementedinterfaces^.addintfref(pdef(readderef));
implementedinterfaces^.ioffsets(i)^:=readlong;
end;
end
else
implementedinterfaces:=nil;
oldread_member:=read_member;
read_member:=true;
symtable:=new(pstoredsymtable,loadas(objectsymtable));
read_member:=oldread_member;
symtable^.defowner:=@self;
symtable^.name := stringdup(objname^);
{ handles the predefined class tobject }
{ the last TOBJECT which is loaded gets }
{ it ! }
if (childof=nil) and
(objecttype=odt_class) and
(upper(objname^)='TOBJECT') then
class_tobject:=@self;
if (childof=nil) and (objecttype=odt_interfacecom) and
(objname^='IUNKNOWN') then
interface_iunknown:=@self;
{$ifdef GDB}
writing_stabs:=false;
classglobalnb:=0;
classptrglobalnb:=0;
{$endif GDB}
end;
destructor tobjectdef.done;
begin
if assigned(symtable) then
dispose(symtable,done);
if (oo_is_forward in objectoptions) then
Message1(sym_e_class_forward_not_resolved,objname^);
stringdispose(objname);
stringdispose(iidstr);
if assigned(implementedinterfaces) then
dispose(implementedinterfaces,done);
inherited done;
end;
procedure tobjectdef.write;
var
oldread_member : boolean;
implintfcount : longint;
i : longint;
begin
inherited write;
writebyte(byte(objecttype));
writelong(size);
writelong(vmt_offset);
writestring(objname^);
writederef(childof);
writesmallset(objectoptions);
writebyte(byte(has_rtti));
if objecttype in [odt_interfacecom,odt_interfacecorba] then
begin
writebyte(byte(isiidguidvalid));
writeguid(iidguid);
writestring(iidstr^);
writelong(lastvtableindex);
end;
if objecttype in [odt_class,odt_interfacecorba] then
begin
implintfcount:=implementedinterfaces^.count;
writelong(implintfcount);
for i:=1 to implintfcount do
begin
writederef(implementedinterfaces^.interfaces(i));
writelong(implementedinterfaces^.ioffsets(i)^);
end;
end;
current_ppu^.writeentry(ibobjectdef);
oldread_member:=read_member;
read_member:=true;
pstoredsymtable(symtable)^.writeas;
read_member:=oldread_member;
end;
function tobjectdef.getsymtable(t:tgetsymtable):psymtable;
begin
if t=gs_record then
getsymtable:=symtable
else
getsymtable:=nil;
end;
procedure tobjectdef.deref;
var
oldrecsyms : psymtable;
begin
inherited deref;
resolvedef(pdef(childof));
oldrecsyms:=aktrecordsymtable;
aktrecordsymtable:=symtable;
pstoredsymtable(symtable)^.deref;
aktrecordsymtable:=oldrecsyms;
if objecttype in [odt_class,odt_interfacecorba] then
implementedinterfaces^.deref;
end;
procedure tobjectdef.set_parent( c : pobjectdef);
begin
{ nothing to do if the parent was not forward !}
if assigned(childof) then
exit;
childof:=c;
{ some options are inherited !! }
if assigned(c) then
begin
{ only important for classes }
lastvtableindex:=c^.lastvtableindex;
objectoptions:=objectoptions+(c^.objectoptions*
[oo_has_virtual,oo_has_private,oo_has_protected,oo_has_constructor,oo_has_destructor]);
if not (objecttype in [odt_interfacecom,odt_interfacecorba]) then
begin
{ add the data of the anchestor class }
inc(symtable^.datasize,c^.symtable^.datasize);
if (oo_has_vmt in objectoptions) and
(oo_has_vmt in c^.objectoptions) then
dec(symtable^.datasize,target_os.size_of_pointer);
{ if parent has a vmt field then
the offset is the same for the child PM }
if (oo_has_vmt in c^.objectoptions) or is_class(@self) then
begin
vmt_offset:=c^.vmt_offset;
include(objectoptions,oo_has_vmt);
end;
end;
end;
savesize := symtable^.datasize;
end;
procedure tobjectdef.insertvmt;
begin
if objecttype in [odt_interfacecom,odt_interfacecorba] then exit;
if (oo_has_vmt in objectoptions) then
internalerror(12345)
else
begin
{ first round up to multiple of 4 }
if (symtable^.dataalignment=2) then
begin
if (symtable^.datasize and 1)<>0 then
inc(symtable^.datasize);
end
else
if (symtable^.dataalignment>=4) then
begin
if (symtable^.datasize mod 4) <> 0 then
inc(symtable^.datasize,4-(symtable^.datasize mod 4));
end;
vmt_offset:=symtable^.datasize;
inc(symtable^.datasize,target_os.size_of_pointer);
include(objectoptions,oo_has_vmt);
end;
end;
procedure tobjectdef.check_forwards;
begin
if objecttype in [odt_interfacecom,odt_interfacecorba] then exit; { Kaz: ??? }
pstoredsymtable(symtable)^.check_forwards;
if (oo_is_forward in objectoptions) then
begin
{ ok, in future, the forward can be resolved }
Message1(sym_e_class_forward_not_resolved,objname^);
exclude(objectoptions,oo_is_forward);
end;
end;
{ true, if self inherits from d (or if they are equal) }
function tobjectdef.is_related(d : pobjectdef) : boolean;
var
hp : pobjectdef;
begin
hp:=@self;
while assigned(hp) do
begin
if hp=d then
begin
is_related:=true;
exit;
end;
hp:=hp^.childof;
end;
is_related:=false;
end;
var
sd : pprocdef;
procedure _searchdestructor(sym : pnamedindexobject);
var
p : pprocdef;
begin
{ if we found already a destructor, then we exit }
if assigned(sd) then
exit;
if psym(sym)^.typ=procsym then
begin
p:=pprocsym(sym)^.definition;
while assigned(p) do
begin
if p^.proctypeoption=potype_destructor then
begin
sd:=p;
exit;
end;
p:=p^.nextoverloaded;
end;
end;
end;
function tobjectdef.searchdestructor : pprocdef;
var
o : pobjectdef;
begin
searchdestructor:=nil;
o:=@self;
sd:=nil;
while assigned(o) do
begin
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}_searchdestructor);
if assigned(sd) then
begin
searchdestructor:=sd;
exit;
end;
o:=o^.childof;
end;
end;
function tobjectdef.size : longint;
begin
if objecttype in [odt_class,odt_interfacecom,odt_interfacecorba] then
size:=target_os.size_of_pointer
else
size:=symtable^.datasize;
end;
function tobjectdef.alignment:longint;
begin
alignment:=symtable^.dataalignment;
end;
function tobjectdef.vmtmethodoffset(index:longint):longint;
begin
{ for offset of methods for classes, see rtl/inc/objpash.inc }
if objecttype in [odt_interfacecom,odt_interfacecorba] then
vmtmethodoffset:=(index+12)*target_os.size_of_pointer
else
{$ifdef WITHDMT}
vmtmethodoffset:=(index+4)*target_os.size_of_pointer;
{$else WITHDMT}
vmtmethodoffset:=(index+3)*target_os.size_of_pointer;
{$endif WITHDMT}
end;
function tobjectdef.vmt_mangledname : string;
{DM: I get a nil pointer on the owner name. I don't know if this
may happen, and I have therefore fixed the problem by doing nil pointer
checks.}
var
s1,s2:string;
begin
if not(oo_has_vmt in objectoptions) then
Message1(parser_object_has_no_vmt,objname^);
if owner^.name=nil then
s1:=''
else
s1:=owner^.name^;
if objname=nil then
s2:=''
else
s2:=Upper(objname^);
vmt_mangledname:='VMT_'+s1+'$_'+s2;
end;
function tobjectdef.rtti_name : string;
var
s1,s2:string;
begin
if owner^.name=nil then
s1:=''
else
s1:=owner^.name^;
if objname=nil then
s2:=''
else
s2:=Upper(objname^);
rtti_name:='RTTI_'+s1+'$_'+s2;
end;
{$ifdef GDB}
procedure addprocname(p :pnamedindexobject);
var virtualind,argnames : string;
news, newrec : pchar;
pd,ipd : pprocdef;
lindex : longint;
para : pparaitem;
arglength : byte;
sp : char;
begin
If psym(p)^.typ = procsym then
begin
pd := pprocsym(p)^.definition;
{ this will be used for full implementation of object stabs
not yet done }
ipd := pd;
while assigned(ipd^.nextoverloaded) do ipd := ipd^.nextoverloaded;
if (po_virtualmethod in pd^.procoptions) then
begin
lindex := pd^.extnumber;
{doesnt seem to be necessary
lindex := lindex or $80000000;}
virtualind := '*'+tostr(lindex)+';'+ipd^._class^.classnumberstring+';'
end
else
virtualind := '.';
{ used by gdbpas to recognize constructor and destructors }
if (pd^.proctypeoption=potype_constructor) then
argnames:='__ct__'
else if (pd^.proctypeoption=potype_destructor) then
argnames:='__dt__'
else
argnames := '';
{ arguments are not listed here }
{we don't need another definition}
para := pparaitem(pd^.para^.first);
while assigned(para) do
begin
if para^.paratype.def^.deftype = formaldef then
begin
if para^.paratyp=vs_var then
argnames := argnames+'3var'
else if para^.paratyp=vs_const then
argnames:=argnames+'5const'
else if para^.paratyp=vs_out then
argnames:=argnames+'3out';
end
else
begin
{ if the arg definition is like (v: ^byte;..
there is no sym attached to data !!! }
if assigned(para^.paratype.def^.typesym) then
begin
arglength := length(para^.paratype.def^.typesym^.name);
argnames := argnames + tostr(arglength)+para^.paratype.def^.typesym^.name;
end
else
begin
argnames:=argnames+'11unnamedtype';
end;
end;
para := pparaitem(para^.next);
end;
ipd^.is_def_stab_written := written;
{ here 2A must be changed for private and protected }
{ 0 is private 1 protected and 2 public }
if (sp_private in psym(p)^.symoptions) then sp:='0'
else if (sp_protected in psym(p)^.symoptions) then sp:='1'
else sp:='2';
newrec := strpnew(p^.name+'::'+ipd^.numberstring
+'=##'+pstoreddef(pd^.rettype.def)^.numberstring+';:'+argnames+';'+sp+'A'
+virtualind+';');
{ get spare place for a string at the end }
if strlen(StabRecString) + strlen(newrec) >= StabRecSize-256 then
begin
getmem(news,stabrecsize+memsizeinc);
strcopy(news,stabrecstring);
freemem(stabrecstring,stabrecsize);
stabrecsize:=stabrecsize+memsizeinc;
stabrecstring:=news;
end;
strcat(StabRecstring,newrec);
{freemem(newrec,memsizeinc); }
strdispose(newrec);
{This should be used for case !!
RecOffset := RecOffset + pd^.size;}
end;
end;
function tobjectdef.stabstring : pchar;
var anc : pobjectdef;
oldrec : pchar;
storenb, oldrecsize : longint;
str_end : string;
begin
if not (objecttype=odt_class) or writing_stabs then
begin
storenb:=globalnb;
globalnb:=classptrglobalnb;
oldrec := stabrecstring;
oldrecsize:=stabrecsize;
stabrecsize:=memsizeinc;
GetMem(stabrecstring,stabrecsize);
strpcopy(stabRecString,'s'+tostr(symtable^.datasize));
if assigned(childof) then
begin
{only one ancestor not virtual, public, at base offset 0 }
{ !1 , 0 2 0 , }
strpcopy(strend(stabrecstring),'!1,020,'+childof^.classnumberstring+';');
end;
{virtual table to implement yet}
{RecOffset := 0;}
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}addname);
if (oo_has_vmt in objectoptions) then
if not assigned(childof) or not(oo_has_vmt in childof^.objectoptions) then
begin
strpcopy(strend(stabrecstring),'$vf'+classnumberstring+':'+typeglobalnumber('vtblarray')
+','+tostr(vmt_offset*8)+';');
end;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}addprocname);
if (oo_has_vmt in objectoptions) then
begin
anc := @self;
while assigned(anc^.childof) and (oo_has_vmt in anc^.childof^.objectoptions) do
anc := anc^.childof;
{ just in case anc = self }
str_end:=';~%'+anc^.classnumberstring+';';
end
else
str_end:=';';
strpcopy(strend(stabrecstring),str_end);
stabstring := strnew(StabRecString);
freemem(stabrecstring,stabrecsize);
stabrecstring := oldrec;
stabrecsize:=oldrecsize;
globalnb:=storenb;
end
else
begin
stabstring:=strpnew('*'+classnumberstring);
end;
end;
procedure tobjectdef.set_globalnb;
begin
classglobalnb:=PGlobalTypeCount^;
globalnb:=classglobalnb;
inc(PglobalTypeCount^);
{ classes need two type numbers, the globalnb is set to the ptr }
if objecttype=odt_class then
begin
classptrglobalnb:=PGlobalTypeCount^;
globalnb:=classptrglobalnb;
inc(PglobalTypeCount^);
end;
end;
function tobjectdef.classnumberstring : string;
var
onb : word;
begin
if globalnb=0 then
numberstring;
if objecttype=odt_class then
begin
onb:=globalnb;
globalnb:=classglobalnb;
classnumberstring:=numberstring;
globalnb:=onb;
end
else
classnumberstring:=numberstring;
end;
function tobjectdef.classptrnumberstring : string;
var
onb : word;
begin
if globalnb=0 then
numberstring;
if objecttype=odt_class then
begin
onb:=globalnb;
globalnb:=classptrglobalnb;
classptrnumberstring:=numberstring;
globalnb:=onb;
end
else
classptrnumberstring:=numberstring;
end;
procedure tobjectdef.concatstabto(asmlist : paasmoutput);
var st : pstring;
begin
if objecttype<>odt_class then
begin
inherited concatstabto(asmlist);
exit;
end;
if ((typesym=nil) or ptypesym(typesym)^.isusedinstab or (cs_gdb_dbx in aktglobalswitches)) and
(is_def_stab_written = not_written) then
begin
if globalnb=0 then
set_globalnb;
{ Write the record class itself }
writing_stabs:=true;
if assigned(typesym) then
begin
st:=ptypesym(typesym)^._name;
ptypesym(typesym)^._name:=stringdup(' ');
end;
globalnb:=classglobalnb;
inherited concatstabto(asmlist);
if assigned(typesym) then
begin
stringdispose(ptypesym(typesym)^._name);
ptypesym(typesym)^._name:=st;
end;
globalnb:=classptrglobalnb;
writing_stabs:=false;
{ Write the invisible pointer class }
is_def_stab_written:=not_written;
inherited concatstabto(asmlist);
end;
end;
{$endif GDB}
procedure tobjectdef.write_child_init_data;
begin
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}generate_child_inittable);
end;
procedure tobjectdef.write_init_data;
begin
case objecttype of
odt_class:
rttilist^.concat(new(pai_const,init_8bit(tkclass)));
odt_object:
rttilist^.concat(new(pai_const,init_8bit(tkobject)));
odt_interfacecom:
rttilist^.concat(new(pai_const,init_8bit(tkinterface)));
odt_interfacecorba:
rttilist^.concat(new(pai_const,init_8bit(tkinterfaceCorba)));
else
exit;
end;
{ generate the name }
rttilist^.concat(new(pai_const,init_8bit(length(objname^))));
rttilist^.concat(new(pai_string,init(objname^)));
rttilist^.concat(new(pai_const,init_32bit(size)));
count:=0;
if objecttype in [odt_interfacecom,odt_interfacecorba] then
begin
end
else
begin
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}count_inittable_fields);
rttilist^.concat(new(pai_const,init_32bit(count)));
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}write_field_inittable);
end;
end;
function tobjectdef.needs_inittable : boolean;
var
oldb : boolean;
begin
case objecttype of
odt_interfacecom: needs_inittable:=true;
odt_object:
begin
{ there are recursive calls to needs_inittable possible, }
{ so we have to change to old value how else should }
{ we do that ? check_rec_rtti can't be a nested }
{ procedure of needs_rtti ! }
oldb:=binittable;
binittable:=false;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}check_rec_inittable);
needs_inittable:=binittable;
binittable:=oldb;
end;
else needs_inittable:=false;
end;
end;
procedure count_published_properties(sym:pnamedindexobject);
begin
if needs_prop_entry(psym(sym)) and
(psym(sym)^.typ<>varsym) then
inc(count);
end;
procedure write_property_info(sym : pnamedindexobject);
var
proctypesinfo : byte;
procedure writeproc(proc : psymlist; shiftvalue : byte);
var
typvalue : byte;
hp : psymlistitem;
address : longint;
begin
if not(assigned(proc) and assigned(proc^.firstsym)) then
begin
rttilist^.concat(new(pai_const,init_32bit(1)));
typvalue:=3;
end
else if proc^.firstsym^.sym^.typ=varsym then
begin
address:=0;
hp:=proc^.firstsym;
while assigned(hp) do
begin
inc(address,pvarsym(hp^.sym)^.address);
hp:=hp^.next;
end;
rttilist^.concat(new(pai_const,init_32bit(address)));
typvalue:=0;
end
else
begin
if not(po_virtualmethod in pprocdef(proc^.def)^.procoptions) then
begin
rttilist^.concat(new(pai_const_symbol,initname(pprocdef(proc^.def)^.mangledname)));
typvalue:=1;
end
else
begin
{ virtual method, write vmt offset }
rttilist^.concat(new(pai_const,init_32bit(
pprocdef(proc^.def)^._class^.vmtmethodoffset(pprocdef(proc^.def)^.extnumber))));
typvalue:=2;
end;
end;
proctypesinfo:=proctypesinfo or (typvalue shl shiftvalue);
end;
begin
if needs_prop_entry(psym(sym)) then
case psym(sym)^.typ of
varsym:
begin
{$ifdef dummy}
if not(pvarsym(sym)^.vartype.def^.deftype=objectdef) or
not(pobjectdef(pvarsym(sym)^.vartype.def)^.is_class) then
internalerror(1509992);
{ access to implicit class property as field }
proctypesinfo:=(0 shl 0) or (0 shl 2) or (0 shl 4);
rttilist^.concat(new(pai_const_symbol,initname(pvarsym(sym)^.vartype.def^.get_rtti_label)));
rttilist^.concat(new(pai_const,init_32bit(pvarsym(sym)^.address)));
rttilist^.concat(new(pai_const,init_32bit(pvarsym(sym)^.address)));
{ per default stored }
rttilist^.concat(new(pai_const,init_32bit(1)));
{ index as well as ... }
rttilist^.concat(new(pai_const,init_32bit(0)));
{ default value are zero }
rttilist^.concat(new(pai_const,init_32bit(0)));
rttilist^.concat(new(pai_const,init_16bit(count)));
inc(count);
rttilist^.concat(new(pai_const,init_8bit(proctypesinfo)));
rttilist^.concat(new(pai_const,init_8bit(length(pvarsym(sym)^.realname))));
rttilist^.concat(new(pai_string,init(pvarsym(sym)^.realname)));
{$endif dummy}
end;
propertysym:
begin
if ppo_indexed in ppropertysym(sym)^.propoptions then
proctypesinfo:=$40
else
proctypesinfo:=0;
rttilist^.concat(new(pai_const_symbol,initname(ppropertysym(sym)^.proptype.def^.get_rtti_label)));
writeproc(ppropertysym(sym)^.readaccess,0);
writeproc(ppropertysym(sym)^.writeaccess,2);
{ isn't it stored ? }
if not(ppo_stored in ppropertysym(sym)^.propoptions) then
begin
rttilist^.concat(new(pai_const,init_32bit(0)));
proctypesinfo:=proctypesinfo or (3 shl 4);
end
else
writeproc(ppropertysym(sym)^.storedaccess,4);
rttilist^.concat(new(pai_const,init_32bit(ppropertysym(sym)^.index)));
rttilist^.concat(new(pai_const,init_32bit(ppropertysym(sym)^.default)));
rttilist^.concat(new(pai_const,init_16bit(count)));
inc(count);
rttilist^.concat(new(pai_const,init_8bit(proctypesinfo)));
rttilist^.concat(new(pai_const,init_8bit(length(ppropertysym(sym)^.realname))));
rttilist^.concat(new(pai_string,init(ppropertysym(sym)^.realname)));
end;
else internalerror(1509992);
end;
end;
procedure generate_published_child_rtti(sym : pnamedindexobject);
begin
if needs_prop_entry(psym(sym)) then
case psym(sym)^.typ of
varsym:
;
{ now ignored:
pvarsym(sym)^.vartype.def^.get_rtti_label;
}
propertysym:
ppropertysym(sym)^.proptype.def^.get_rtti_label;
else
internalerror(1509991);
end;
end;
procedure tobjectdef.write_child_rtti_data;
begin
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}generate_published_child_rtti);
end;
procedure tobjectdef.generate_rtti;
begin
if not has_rtti then
begin
has_rtti:=true;
getdatalabel(rtti_label);
write_child_rtti_data;
rttilist^.concat(new(pai_symbol,initname_global(rtti_name,0)));
rttilist^.concat(new(pai_label,init(rtti_label)));
write_rtti_data;
rttilist^.concat(new(pai_symbol_end,initname(rtti_name)));
end;
end;
type
tclasslistitem = object(tlinkedlist_item)
index : longint;
p : pobjectdef;
end;
pclasslistitem = ^tclasslistitem;
var
classtablelist : tlinkedlist;
tablecount : longint;
function searchclasstablelist(p : pobjectdef) : pclasslistitem;
var
hp : pclasslistitem;
begin
hp:=pclasslistitem(classtablelist.first);
while assigned(hp) do
if hp^.p=p then
begin
searchclasstablelist:=hp;
exit;
end
else
hp:=pclasslistitem(hp^.next);
searchclasstablelist:=nil;
end;
procedure count_published_fields(sym:pnamedindexobject);
var
hp : pclasslistitem;
begin
if needs_prop_entry(psym(sym)) and
(psym(sym)^.typ=varsym) then
begin
if pvarsym(sym)^.vartype.def^.deftype<>objectdef then
internalerror(0206001);
hp:=searchclasstablelist(pobjectdef(pvarsym(sym)^.vartype.def));
if not(assigned(hp)) then
begin
hp:=new(pclasslistitem,init);
hp^.p:=pobjectdef(pvarsym(sym)^.vartype.def);
hp^.index:=tablecount;
classtablelist.concat(hp);
inc(tablecount);
end;
inc(count);
end;
end;
procedure writefields(sym:pnamedindexobject);
var
hp : pclasslistitem;
begin
if needs_prop_entry(psym(sym)) and
(psym(sym)^.typ=varsym) then
begin
rttilist^.concat(new(pai_const,init_32bit(pvarsym(sym)^.address)));
hp:=searchclasstablelist(pobjectdef(pvarsym(sym)^.vartype.def));
if not(assigned(hp)) then
internalerror(0206002);
rttilist^.concat(new(pai_const,init_16bit(hp^.index)));
rttilist^.concat(new(pai_const,init_8bit(length(pvarsym(sym)^.realname))));
rttilist^.concat(new(pai_string,init(pvarsym(sym)^.realname)));
end;
end;
function tobjectdef.generate_field_table : pasmlabel;
var
fieldtable,
classtable : pasmlabel;
hp : pclasslistitem;
begin
classtablelist.init;
getdatalabel(fieldtable);
getdatalabel(classtable);
count:=0;
tablecount:=0;
symtable^.foreach({$ifdef FPC}@{$endif}count_published_fields);
rttilist^.concat(new(pai_label,init(fieldtable)));
rttilist^.concat(new(pai_const,init_16bit(count)));
rttilist^.concat(new(pai_const_symbol,init(classtable)));
symtable^.foreach({$ifdef FPC}@{$endif}writefields);
{ generate the class table }
rttilist^.concat(new(pai_label,init(classtable)));
rttilist^.concat(new(pai_const,init_16bit(tablecount)));
hp:=pclasslistitem(classtablelist.first);
while assigned(hp) do
begin
rttilist^.concat(new(pai_const_symbol,initname(pobjectdef(hp^.p)^.vmt_mangledname)));
hp:=pclasslistitem(hp^.next);
end;
generate_field_table:=fieldtable;
classtablelist.done;
end;
function tobjectdef.next_free_name_index : longint;
var
i : longint;
begin
if assigned(childof) and (oo_can_have_published in childof^.objectoptions) then
i:=childof^.next_free_name_index
else
i:=0;
count:=0;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}count_published_properties);
next_free_name_index:=i+count;
end;
procedure tobjectdef.write_rtti_data;
begin
case objecttype of
odt_class: rttilist^.concat(new(pai_const,init_8bit(tkclass)));
odt_object: rttilist^.concat(new(pai_const,init_8bit(tkobject)));
odt_interfacecom: rttilist^.concat(new(pai_const,init_8bit(tkinterface)));
odt_interfacecorba: rttilist^.concat(new(pai_const,init_8bit(tkinterfaceCorba)));
else
exit;
end;
{ generate the name }
rttilist^.concat(new(pai_const,init_8bit(length(objname^))));
rttilist^.concat(new(pai_string,init(objname^)));
if objecttype in [odt_interfacecom,odt_interfacecorba] then
rttilist^.concat(new(pai_const,init_32bit(0)))
else
rttilist^.concat(new(pai_const_symbol,initname(vmt_mangledname)));
{ write owner typeinfo }
if assigned(childof) and (oo_can_have_published in childof^.objectoptions) then
rttilist^.concat(new(pai_const_symbol,initname(childof^.get_rtti_label)))
else
rttilist^.concat(new(pai_const,init_32bit(0)));
{ count total number of properties }
if assigned(childof) and (oo_can_have_published in childof^.objectoptions) then
count:=childof^.next_free_name_index
else
count:=0;
{ write it }
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}count_published_properties);
rttilist^.concat(new(pai_const,init_16bit(count)));
{ write unit name }
rttilist^.concat(new(pai_const,init_8bit(length(current_module^.realmodulename^))));
rttilist^.concat(new(pai_string,init(current_module^.realmodulename^)));
{ write published properties count }
count:=0;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}count_published_properties);
rttilist^.concat(new(pai_const,init_16bit(count)));
{ count is used to write nameindex }
{ but we need an offset of the owner }
{ to give each property an own slot }
if assigned(childof) and (oo_can_have_published in childof^.objectoptions) then
count:=childof^.next_free_name_index
else
count:=0;
symtable^.foreach({$ifdef FPCPROCVAR}@{$endif}write_property_info);
end;
function tobjectdef.is_publishable : boolean;
begin
is_publishable:=objecttype in [odt_class,odt_interfacecom,odt_interfacecorba];
end;
function tobjectdef.get_rtti_label : string;
begin
generate_rtti;
get_rtti_label:=rtti_name;
end;
{****************************************************************************
TIMPLEMENTEDINTERFACES
****************************************************************************}
type
pnamemap = ^tnamemap;
tnamemap = object(tnamedindexobject)
newname: pstring;
constructor init(const aname, anewname: string);
destructor done; virtual;
end;
constructor tnamemap.init(const aname, anewname: string);
begin
inherited initname(name);
newname:=stringdup(anewname);
end;
destructor tnamemap.done;
begin
stringdispose(newname);
inherited done;
end;
type
pprocdefstore = ^tprocdefstore;
tprocdefstore = object(tnamedindexobject)
procdef: pprocdef;
constructor init(aprocdef: pprocdef);
end;
constructor tprocdefstore.init(aprocdef: pprocdef);
begin
inherited init;
procdef:=aprocdef;
end;
type
pimplintfentry = ^timplintfentry;
timplintfentry = object(tnamedindexobject)
intf: pobjectdef;
ioffs: longint;
namemappings: pdictionary;
procdefs: pindexarray;
constructor init(aintf: pobjectdef);
destructor done; virtual;
end;
constructor timplintfentry.init(aintf: pobjectdef);
begin
inherited init;
intf:=aintf;
ioffs:=-1;
namemappings:=nil;
procdefs:=nil;
end;
destructor timplintfentry.done;
begin
if assigned(namemappings) then
dispose(namemappings,done);
if assigned(procdefs) then
dispose(procdefs,done);
inherited done;
end;
constructor timplementedinterfaces.init;
begin
finterfaces.init(1);
end;
destructor timplementedinterfaces.done;
begin
finterfaces.done;
end;
function timplementedinterfaces.count: longint;
begin
count:=finterfaces.count;
end;
procedure timplementedinterfaces.checkindex(intfindex: longint);
begin
if (intfindex<1) or (intfindex>count) then
InternalError(200006123);
end;
function timplementedinterfaces.interfaces(intfindex: longint): pobjectdef;
begin
checkindex(intfindex);
interfaces:=pimplintfentry(finterfaces.search(intfindex))^.intf;
end;
function timplementedinterfaces.ioffsets(intfindex: longint): plongint;
begin
checkindex(intfindex);
ioffsets:=@pimplintfentry(finterfaces.search(intfindex))^.ioffs;
end;
function timplementedinterfaces.searchintf(def: pdef): longint;
var
i: longint;
begin
i:=1;
while (i<=count) and (pdef(interfaces(i))<>def) do inc(i);
if i<=count then
searchintf:=i
else
searchintf:=-1;
end;
procedure timplementedinterfaces.deref;
var
i: longint;
begin
for i:=1 to count do
with pimplintfentry(finterfaces.search(i))^ do
resolvedef(pdef(intf));
end;
procedure timplementedinterfaces.addintfref(def: pdef);
begin
finterfaces.insert(new(pimplintfentry,init(pobjectdef(def))));
end;
procedure timplementedinterfaces.addintf(def: pdef);
begin
if not assigned(def) or (searchintf(def)<>-1) or (def^.deftype<>objectdef) or
not (pobjectdef(def)^.objecttype in [odt_interfacecom,odt_interfacecorba]) then
internalerror(200006124);
finterfaces.insert(new(pimplintfentry,init(pobjectdef(def))));
end;
procedure timplementedinterfaces.clearmappings;
var
i: longint;
begin
for i:=1 to count do
with pimplintfentry(finterfaces.search(i))^ do
begin
if assigned(namemappings) then
dispose(namemappings,done);
namemappings:=nil;
end;
end;
procedure timplementedinterfaces.addmappings(intfindex: longint; const name, newname: string);
begin
checkindex(intfindex);
with pimplintfentry(finterfaces.search(intfindex))^ do
begin
if not assigned(namemappings) then
new(namemappings,init);
namemappings^.insert(new(pnamemap,init(name,newname)));
end;
end;
function timplementedinterfaces.getmappings(intfindex: longint; const name: string; var nextexist: pointer): string;
begin
checkindex(intfindex);
if not assigned(nextexist) then
with pimplintfentry(finterfaces.search(intfindex))^ do
begin
if assigned(namemappings) then
nextexist:=namemappings^.search(name)
else
nextexist:=nil;
end;
if assigned(nextexist) then
begin
getmappings:=pnamemap(nextexist)^.newname^;
nextexist:=pnamemap(nextexist)^.listnext;
end
else
getmappings:='';
end;
procedure timplementedinterfaces.clearimplprocs;
var
i: longint;
begin
for i:=1 to count do
with pimplintfentry(finterfaces.search(i))^ do
begin
if assigned(procdefs) then
dispose(procdefs,done);
procdefs:=nil;
end;
end;
procedure timplementedinterfaces.addimplproc(intfindex: longint; procdef: pprocdef);
begin
checkindex(intfindex);
with pimplintfentry(finterfaces.search(intfindex))^ do
begin
if not assigned(procdefs) then
new(procdefs,init(4));
procdefs^.insert(new(pprocdefstore,init(procdef)));
end;
end;
function timplementedinterfaces.implproccount(intfindex: longint): longint;
begin
checkindex(intfindex);
with pimplintfentry(finterfaces.search(intfindex))^ do
if assigned(procdefs) then
implproccount:=procdefs^.count
else
implproccount:=0;
end;
function timplementedinterfaces.implprocs(intfindex: longint; procindex: longint): pprocdef;
begin
checkindex(intfindex);
with pimplintfentry(finterfaces.search(intfindex))^ do
if assigned(procdefs) then
implprocs:=pprocdefstore(procdefs^.search(procindex))^.procdef
else
internalerror(200006131);
end;
function timplementedinterfaces.isimplmergepossible(intfindex, remainindex: longint; var weight: longint): boolean;
var
possible: boolean;
i: longint;
iiep1: pindexarray;
iiep2: pindexarray;
begin
checkindex(intfindex);
checkindex(remainindex);
iiep1:=pimplintfentry(finterfaces.search(intfindex))^.procdefs;
iiep2:=pimplintfentry(finterfaces.search(remainindex))^.procdefs;
if not assigned(iiep1) then { empty interface is mergeable :-) }
begin
possible:=true;
weight:=0;
end
else
begin
possible:=assigned(iiep2) and (iiep1^.count<=iiep2^.count);
i:=1;
while (possible) and (i<=iiep1^.count) do
begin
possible:=
pprocdefstore(iiep1^.search(i))^.procdef=
pprocdefstore(iiep2^.search(i))^.procdef;
inc(i);
end;
if possible then
weight:=iiep1^.count;
end;
isimplmergepossible:=possible;
end;
{****************************************************************************
TFORWARDDEF
****************************************************************************}
constructor tforwarddef.init(const s:string;const pos : tfileposinfo);
var
oldregisterdef : boolean;
begin
{ never register the forwarddefs, they are disposed at the
end of the type declaration block }
oldregisterdef:=registerdef;
registerdef:=false;
inherited init;
registerdef:=oldregisterdef;
deftype:=forwarddef;
tosymname:=s;
forwardpos:=pos;
end;
function tforwarddef.gettypename:string;
begin
gettypename:='unresolved forward to '+tosymname;
end;
{****************************************************************************
TERRORDEF
****************************************************************************}
constructor terrordef.init;
begin
inherited init;
deftype:=errordef;
end;
{$ifdef GDB}
function terrordef.stabstring : pchar;
begin
stabstring:=strpnew('error'+numberstring);
end;
{$endif GDB}
function terrordef.gettypename:string;
begin
gettypename:='<erroneous type>';
end;
{****************************************************************************
GDB Helpers
****************************************************************************}
{$ifdef GDB}
function typeglobalnumber(const s : string) : string;
var st : string;
symt : psymtable;
old_make_ref : boolean;
begin
old_make_ref:=make_ref;
make_ref:=false;
typeglobalnumber := '0';
srsym := nil;
if pos('.',s) > 0 then
begin
st := copy(s,1,pos('.',s)-1);
getsym(st,false);
st := copy(s,pos('.',s)+1,255);
if assigned(srsym) then
begin
if srsym^.typ = unitsym then
begin
symt := punitsym(srsym)^.unitsymtable;
srsym := psym(symt^.search(st));
end else srsym := nil;
end;
end else st := s;
if srsym = nil then getsym(st,true);
if srsym^.typ<>typesym then
begin
Message(type_e_type_id_expected);
exit;
end;
typeglobalnumber := pstoreddef(ptypesym(srsym)^.restype.def)^.numberstring;
make_ref:=old_make_ref;
end;
{$endif GDB}
{****************************************************************************
Definition Helpers
****************************************************************************}
procedure reset_global_defs;
var
def : pstoreddef;
{$ifdef debug}
prevdef : pstoreddef;
{$endif debug}
begin
{$ifdef debug}
prevdef:=nil;
{$endif debug}
{$ifdef GDB}
pglobaltypecount:=@globaltypecount;
{$endif GDB}
def:=firstglobaldef;
while assigned(def) do
begin
{$ifdef GDB}
if assigned(def^.typesym) then
ptypesym(def^.typesym)^.isusedinstab:=false;
def^.is_def_stab_written:=not_written;
{$endif GDB}
{if not current_module^.in_implementation then}
begin
{ reset rangenr's }
case def^.deftype of
orddef : porddef(def)^.rangenr:=0;
enumdef : penumdef(def)^.rangenr:=0;
arraydef : parraydef(def)^.rangenr:=0;
end;
if def^.deftype<>objectdef then
def^.has_rtti:=false;
def^.has_inittable:=false;
end;
{$ifdef debug}
prevdef:=def;
{$endif debug}
def:=def^.nextglobal;
end;
end;
function is_interfacecom(def: pdef): boolean;
begin
is_interfacecom:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype=odt_interfacecom);
end;
function is_interfacecorba(def: pdef): boolean;
begin
is_interfacecorba:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype=odt_interfacecorba);
end;
function is_interface(def: pdef): boolean;
begin
is_interface:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype in [odt_interfacecom,odt_interfacecorba]);
end;
function is_class(def: pdef): boolean;
begin
is_class:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype=odt_class);
end;
function is_object(def: pdef): boolean;
begin
is_object:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype=odt_class);
end;
function is_cppclass(def: pdef): boolean;
begin
is_cppclass:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype=odt_cppclass);
end;
function is_class_or_interface(def: pdef): boolean;
begin
is_class_or_interface:=
assigned(def) and
(def^.deftype=objectdef) and
(pobjectdef(def)^.objecttype in [odt_class,odt_interfacecom,odt_interfacecorba]);
end;
end.
{
$Log$
Revision 1.4 2000-11-04 14:25:22 florian
+ merged Attila's changes for interfaces, not tested yet
Revision 1.3 2000/11/02 12:04:10 pierre
* remove RecOffset code, that created problems
Revision 1.2 2000/11/01 23:04:38 peter
* tprocdef.fullprocname added for better casesensitve writing of
procedures
Revision 1.1 2000/10/31 22:02:52 peter
* symtable splitted, no real code changes
}
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