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fpc/compiler/symdef.pas
florian 7be36096f0 + proper init rtti for proc. vars 
git-svn-id: trunk@1479 -
2005-10-18 20:05:56 +00:00

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{
Symbol table implementation for the definitions
Copyright (c) 1998-2005 by Florian Klaempfl, Pierre Muller
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;
{$i fpcdefs.inc}
interface
uses
{ common }
cutils,cclasses,
{ global }
globtype,globals,tokens,
{ symtable }
symconst,symbase,symtype,
{ ppu }
ppu,
{ node }
node,
{ aasm }
aasmbase,aasmtai,
cpubase,cpuinfo,
cgbase,cgutils,
parabase
;
type
{************************************************
TDef
************************************************}
tstoreddef = class(tdef)
protected
typesymderef : tderef;
public
{ persistent (available across units) rtti and init tables }
rttitablesym,
inittablesym : tsym; {trttisym}
rttitablesymderef,
inittablesymderef : tderef;
{ local (per module) rtti and init tables }
localrttilab : array[trttitype] of tasmlabel;
{ linked list of global definitions }
{$ifdef EXTDEBUG}
fileinfo : tfileposinfo;
{$endif}
constructor create;
constructor ppuloaddef(ppufile:tcompilerppufile);
procedure reset;virtual;
function getcopy : tstoreddef;virtual;
procedure ppuwritedef(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);virtual;abstract;
procedure buildderef;override;
procedure buildderefimpl;override;
procedure deref;override;
procedure derefimpl;override;
function size:aint;override;
function getvartype:longint;override;
function alignment:longint;override;
function is_publishable : boolean;override;
function needs_inittable : boolean;override;
{ rtti generation }
procedure write_rtti_name;
procedure write_rtti_data(rt:trttitype);virtual;
procedure write_child_rtti_data(rt:trttitype);virtual;
function get_rtti_label(rt:trttitype):tasmsymbol;
{ regvars }
function is_intregable : boolean;
function is_fpuregable : boolean;
private
savesize : aint;
end;
tfiletyp = (ft_text,ft_typed,ft_untyped);
tfiledef = class(tstoreddef)
filetyp : tfiletyp;
typedfiletype : ttype;
constructor createtext;
constructor createuntyped;
constructor createtyped(const tt : ttype);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
function gettypename:string;override;
function getmangledparaname:string;override;
procedure setsize;
end;
tvariantdef = class(tstoreddef)
varianttype : tvarianttype;
constructor create(v : tvarianttype);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
function gettypename:string;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure setsize;
function is_publishable : boolean;override;
function needs_inittable : boolean;override;
procedure write_rtti_data(rt:trttitype);override;
end;
tformaldef = class(tstoreddef)
constructor create;
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
end;
tforwarddef = class(tstoreddef)
tosymname : pstring;
forwardpos : tfileposinfo;
constructor create(const s:string;const pos : tfileposinfo);
destructor destroy;override;
function gettypename:string;override;
end;
terrordef = class(tstoreddef)
constructor create;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
function getmangledparaname : string;override;
end;
{ tpointerdef and tclassrefdef should get a common
base class, but I derived tclassrefdef from tpointerdef
to avoid problems with bugs (FK)
}
tpointerdef = class(tstoreddef)
pointertype : ttype;
is_far : boolean;
constructor create(const tt : ttype);
constructor createfar(const tt : ttype);
function getcopy : tstoreddef;override;
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
function gettypename:string;override;
end;
tabstractrecorddef= class(tstoreddef)
private
Count : integer;
FRTTIType : trttitype;
procedure count_field_rtti(sym : tnamedindexitem;arg:pointer);
procedure write_field_rtti(sym : tnamedindexitem;arg:pointer);
procedure generate_field_rtti(sym : tnamedindexitem;arg:pointer);
public
symtable : tsymtable;
procedure reset;override;
function getsymtable(t:tgetsymtable):tsymtable;override;
end;
trecorddef = class(tabstractrecorddef)
public
isunion : boolean;
constructor create(p : tsymtable);
constructor ppuload(ppufile:tcompilerppufile);
destructor destroy;override;
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
function size:aint;override;
function alignment : longint;override;
function padalignment: longint;
function gettypename:string;override;
{ debug }
function needs_inittable : boolean;override;
{ rtti }
procedure write_child_rtti_data(rt:trttitype);override;
procedure write_rtti_data(rt:trttitype);override;
end;
tprocdef = class;
tobjectdef = class;
timplementedinterfaces = class;
timplintfentry = class(TNamedIndexItem)
intf : tobjectdef;
intfderef : tderef;
ioffset : longint;
implindex : longint;
namemappings : tdictionary;
procdefs : TIndexArray;
constructor create(aintf: tobjectdef);
constructor create_deref(const d:tderef);
destructor destroy; override;
end;
tobjectdef = class(tabstractrecorddef)
private
procedure count_published_properties(sym:tnamedindexitem;arg:pointer);
procedure write_property_info(sym : tnamedindexitem;arg:pointer);
procedure generate_published_child_rtti(sym : tnamedindexitem;arg:pointer);
procedure count_published_fields(sym:tnamedindexitem;arg:pointer);
procedure writefields(sym:tnamedindexitem;arg:pointer);
public
childof : tobjectdef;
childofderef : tderef;
objname,
objrealname : pstring;
objectoptions : tobjectoptions;
{ to be able to have a variable vmt position }
{ and no vmt field for objects without virtuals }
vmt_offset : longint;
writing_class_record_stab : boolean;
objecttype : tobjectdeftype;
iidguid: pguid;
iidstr: pstring;
lastvtableindex: longint;
{ store implemented interfaces defs and name mappings }
implementedinterfaces: timplementedinterfaces;
constructor create(ot : tobjectdeftype;const n : string;c : tobjectdef);
constructor ppuload(ppufile:tcompilerppufile);
destructor destroy;override;
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
procedure buildderef;override;
procedure deref;override;
function getparentdef:tdef;override;
function size : aint;override;
function alignment:longint;override;
function vmtmethodoffset(index:longint):longint;
function members_need_inittable : boolean;
{ this should be called when this class implements an interface }
procedure prepareguid;
function is_publishable : boolean;override;
function needs_inittable : boolean;override;
function vmt_mangledname : string;
function rtti_name : string;
procedure check_forwards;
function is_related(d : tdef) : boolean;override;
function next_free_name_index : longint;
procedure insertvmt;
procedure set_parent(c : tobjectdef);
function searchdestructor : tprocdef;
{ rtti }
procedure write_child_rtti_data(rt:trttitype);override;
procedure write_rtti_data(rt:trttitype);override;
function generate_field_table : tasmlabel;
end;
timplementedinterfaces = class
constructor create;
destructor destroy; override;
function count: longint;
function interfaces(intfindex: longint): tobjectdef;
function interfacesderef(intfindex: longint): tderef;
function ioffsets(intfindex: longint): longint;
procedure setioffsets(intfindex,iofs:longint);
function implindex(intfindex:longint):longint;
procedure setimplindex(intfindex,implidx:longint);
function searchintf(def: tdef): longint;
procedure addintf(def: tdef);
procedure buildderef;
procedure deref;
{ add interface reference loaded from ppu }
procedure addintf_deref(const d:tderef;iofs:longint);
procedure clearmappings;
procedure addmappings(intfindex: longint; const origname, newname: string);
function getmappings(intfindex: longint; const origname: string; var nextexist: pointer): string;
procedure addimplproc(intfindex: longint; procdef: tprocdef);
function implproccount(intfindex: longint): longint;
function implprocs(intfindex: longint; procindex: longint): tprocdef;
function isimplmergepossible(intfindex, remainindex: longint; var weight: longint): boolean;
private
finterfaces: tindexarray;
procedure checkindex(intfindex: longint);
end;
tclassrefdef = class(tpointerdef)
constructor create(const t:ttype);
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
function is_publishable : boolean;override;
end;
tarraydef = class(tstoreddef)
lowrange,
highrange : aint;
rangetype : ttype;
IsConvertedPointer,
IsDynamicArray,
IsVariant,
IsConstructor,
IsArrayOfConst : boolean;
protected
_elementtype : ttype;
public
function elesize : aint;
function elecount : aint;
constructor create_from_pointer(const elemt : ttype);
constructor create(l,h : aint;const t : ttype);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
function getmangledparaname : string;override;
procedure setelementtype(t: ttype);
procedure buildderef;override;
procedure deref;override;
function size : aint;override;
function alignment : longint;override;
{ returns the label of the range check string }
function needs_inittable : boolean;override;
procedure write_child_rtti_data(rt:trttitype);override;
procedure write_rtti_data(rt:trttitype);override;
property elementtype : ttype Read _ElementType;
end;
torddef = class(tstoreddef)
low,high : TConstExprInt;
typ : tbasetype;
constructor create(t : tbasetype;v,b : TConstExprInt);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function is_publishable : boolean;override;
function gettypename:string;override;
procedure setsize;
function getvartype : longint;override;
{ rtti }
procedure write_rtti_data(rt:trttitype);override;
end;
tfloatdef = class(tstoreddef)
typ : tfloattype;
constructor create(t : tfloattype);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
function is_publishable : boolean;override;
procedure setsize;
function getvartype:longint;override;
{ rtti }
procedure write_rtti_data(rt:trttitype);override;
end;
tabstractprocdef = class(tstoreddef)
{ saves a definition to the return type }
rettype : ttype;
parast : tsymtable;
paras : tparalist;
proctypeoption : tproctypeoption;
proccalloption : tproccalloption;
procoptions : tprocoptions;
requiredargarea : aint;
{ number of user visibile parameters }
maxparacount,
minparacount : byte;
{$ifdef i386}
fpu_used : longint; { how many stack fpu must be empty }
{$endif i386}
funcretloc : array[tcallercallee] of TLocation;
has_paraloc_info : boolean; { paraloc info is available }
constructor create(level:byte);
constructor ppuload(ppufile:tcompilerppufile);
destructor destroy;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
procedure releasemem;
procedure calcparas;
function typename_paras(showhidden:boolean): string;
procedure test_if_fpu_result;
function is_methodpointer:boolean;virtual;
function is_addressonly:boolean;virtual;
private
procedure count_para(p:tnamedindexitem;arg:pointer);
procedure insert_para(p:tnamedindexitem;arg:pointer);
end;
tprocvardef = class(tabstractprocdef)
constructor create(level:byte);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
function getsymtable(t:tgetsymtable):tsymtable;override;
function size : aint;override;
function gettypename:string;override;
function is_publishable : boolean;override;
function is_methodpointer:boolean;override;
function is_addressonly:boolean;override;
function getmangledparaname:string;override;
{ rtti }
procedure write_rtti_data(rt:trttitype);override;
end;
tmessageinf = record
case integer of
0 : (str : pchar);
1 : (i : longint);
end;
tinlininginfo = record
{ node tree }
code : tnode;
flags : tprocinfoflags;
end;
pinlininginfo = ^tinlininginfo;
{$ifdef oldregvars}
{ register variables }
pregvarinfo = ^tregvarinfo;
tregvarinfo = record
regvars : array[1..maxvarregs] of tsym;
regvars_para : array[1..maxvarregs] of boolean;
regvars_refs : array[1..maxvarregs] of longint;
fpuregvars : array[1..maxfpuvarregs] of tsym;
fpuregvars_para : array[1..maxfpuvarregs] of boolean;
fpuregvars_refs : array[1..maxfpuvarregs] of longint;
end;
{$endif oldregvars}
tprocdef = class(tabstractprocdef)
private
_mangledname : pstring;
public
extnumber : word;
messageinf : tmessageinf;
{$ifndef EXTDEBUG}
{ where is this function defined and what were the symbol
flags, needed here because there
is only one symbol for all overloaded functions
EXTDEBUG has fileinfo in tdef (PFV) }
fileinfo : tfileposinfo;
{$endif}
symoptions : tsymoptions;
{ symbol owning this definition }
procsym : tsym;
procsymderef : tderef;
{ alias names }
aliasnames : tstringlist;
{ symtables }
localst : tsymtable;
funcretsym : tsym;
funcretsymderef : tderef;
{ browser info }
lastref,
defref,
lastwritten : tref;
refcount : longint;
_class : tobjectdef;
_classderef : tderef;
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
libsym : tsym;
libsymderef : tderef;
{$endif powerpc}
{ name of the result variable to insert in the localsymtable }
resultname : stringid;
{ true, if the procedure is only declared
(forward procedure) }
forwarddef,
{ true if the procedure is declared in the interface }
interfacedef : boolean;
{ true if the procedure has a forward declaration }
hasforward : boolean;
{ import info }
import_dll,
import_name : pstring;
import_nr : word;
{ info for inlining the subroutine, if this pointer is nil,
the procedure can't be inlined }
inlininginfo : pinlininginfo;
{$ifdef oldregvars}
regvarinfo: pregvarinfo;
{$endif oldregvars}
{ position in aasmoutput list }
procstarttai,
procendtai : tai;
constructor create(level:byte);
constructor ppuload(ppufile:tcompilerppufile);
destructor destroy;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure buildderefimpl;override;
procedure deref;override;
procedure derefimpl;override;
procedure reset;override;
function getsymtable(t:tgetsymtable):tsymtable;override;
function gettypename : string;override;
function mangledname : string;
procedure setmangledname(const s : string);
procedure load_references(ppufile:tcompilerppufile;locals:boolean);
function write_references(ppufile:tcompilerppufile;locals:boolean):boolean;
{ inserts the local symbol table, if this is not
no local symbol table is built. Should be called only
when we are sure that a local symbol table will be required.
}
procedure insert_localst;
function fullprocname(showhidden:boolean):string;
function cplusplusmangledname : string;
function is_methodpointer:boolean;override;
function is_addressonly:boolean;override;
function is_visible_for_object(currobjdef:tobjectdef):boolean;
end;
{ single linked list of overloaded procs }
pprocdeflist = ^tprocdeflist;
tprocdeflist = record
def : tprocdef;
defderef : tderef;
next : pprocdeflist;
end;
tstringdef = class(tstoreddef)
string_typ : tstringtype;
len : aint;
constructor createshort(l : byte);
constructor loadshort(ppufile:tcompilerppufile);
constructor createlong(l : aint);
constructor loadlong(ppufile:tcompilerppufile);
{$ifdef ansistring_bits}
constructor createansi(l:aint;bits:Tstringbits);
constructor loadansi(ppufile:tcompilerppufile;bits:Tstringbits);
{$else}
constructor createansi(l : aint);
constructor loadansi(ppufile:tcompilerppufile);
{$endif}
constructor createwide(l : aint);
constructor loadwide(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
function stringtypname:string;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function gettypename:string;override;
function getmangledparaname:string;override;
function is_publishable : boolean;override;
function alignment : longint;override;
{ init/final }
function needs_inittable : boolean;override;
{ rtti }
procedure write_rtti_data(rt:trttitype);override;
end;
tenumdef = class(tstoreddef)
minval,
maxval : aint;
has_jumps : boolean;
firstenum : tsym; {tenumsym}
basedef : tenumdef;
basedefderef : tderef;
constructor create;
constructor create_subrange(_basedef:tenumdef;_min,_max:aint);
constructor ppuload(ppufile:tcompilerppufile);
destructor destroy;override;
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
procedure derefimpl;override;
function gettypename:string;override;
function is_publishable : boolean;override;
procedure calcsavesize;
procedure setmax(_max:aint);
procedure setmin(_min:aint);
function min:aint;
function max:aint;
{ rtti }
procedure write_rtti_data(rt:trttitype);override;
procedure write_child_rtti_data(rt:trttitype);override;
private
procedure correct_owner_symtable;
end;
tsetdef = class(tstoreddef)
elementtype : ttype;
settype : tsettype;
setbase,
setmax : aint;
constructor create(const t:ttype;high : aint);
constructor ppuload(ppufile:tcompilerppufile);
destructor destroy;override;
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
function gettypename:string;override;
function is_publishable : boolean;override;
{ rtti }
procedure write_rtti_data(rt:trttitype);override;
procedure write_child_rtti_data(rt:trttitype);override;
end;
Tdefmatch=(dm_exact,dm_equal,dm_convertl1);
var
aktobjectdef : tobjectdef; { used for private functions check !! }
{ default types }
generrortype, { error in definition }
voidpointertype, { pointer for Void-Pointerdef }
charpointertype, { pointer for Char-Pointerdef }
widecharpointertype, { pointer for WideChar-Pointerdef }
voidfarpointertype,
cformaltype, { unique formal definition }
voidtype, { Void (procedure) }
cchartype, { Char }
cwidechartype, { WideChar }
booltype, { boolean type }
u8inttype, { 8-Bit unsigned integer }
s8inttype, { 8-Bit signed integer }
u16inttype, { 16-Bit unsigned integer }
s16inttype, { 16-Bit signed integer }
u32inttype, { 32-Bit unsigned integer }
s32inttype, { 32-Bit signed integer }
u64inttype, { 64-bit unsigned integer }
s64inttype, { 64-bit signed integer }
s32floattype, { pointer for realconstn }
s64floattype, { pointer for realconstn }
s80floattype, { pointer to type of temp. floats }
s64currencytype, { pointer to a currency type }
cshortstringtype, { pointer to type of short string const }
clongstringtype, { pointer to type of long string const }
{$ifdef ansistring_bits}
cansistringtype16, { pointer to type of ansi string const }
cansistringtype32, { pointer to type of ansi string const }
cansistringtype64, { pointer to type of ansi string const }
{$else}
cansistringtype, { pointer to type of ansi string const }
{$endif}
cwidestringtype, { pointer to type of wide string const }
openshortstringtype, { pointer to type of an open shortstring,
needed for readln() }
openchararraytype, { pointer to type of an open array of char,
needed for readln() }
cfiletype, { get the same definition for all file }
{ used for stabs }
methodpointertype, { typecasting of methodpointers to extract self }
{ we use only one variant def for every variant class }
cvarianttype,
colevarianttype,
{ default integer type s32inttype on 32 bit systems, s64bittype on 64 bit systems }
sinttype,
uinttype,
{ unsigned ord type with the same size as a pointer }
ptrinttype,
{ several types to simulate more or less C++ objects for GDB }
vmttype,
vmtarraytype,
pvmttype : ttype; { type of classrefs, used for stabs }
{ pointer to the anchestor of all classes }
class_tobject : tobjectdef;
{ pointer to the ancestor of all COM interfaces }
interface_iunknown : tobjectdef;
{ pointer to the TGUID type
of all interfaces }
rec_tguid : trecorddef;
const
{$ifdef i386}
pbestrealtype : ^ttype = @s80floattype;
{$endif}
{$ifdef x86_64}
pbestrealtype : ^ttype = @s80floattype;
{$endif}
{$ifdef m68k}
pbestrealtype : ^ttype = @s64floattype;
{$endif}
{$ifdef alpha}
pbestrealtype : ^ttype = @s64floattype;
{$endif}
{$ifdef powerpc}
pbestrealtype : ^ttype = @s64floattype;
{$endif}
{$ifdef POWERPC64}
pbestrealtype : ^ttype = @s64floattype;
{$endif}
{$ifdef ia64}
pbestrealtype : ^ttype = @s64floattype;
{$endif}
{$ifdef SPARC}
pbestrealtype : ^ttype = @s64floattype;
{$endif SPARC}
{$ifdef vis}
pbestrealtype : ^ttype = @s64floattype;
{$endif vis}
{$ifdef ARM}
pbestrealtype : ^ttype = @s64floattype;
{$endif ARM}
{$ifdef MIPS}
pbestrealtype : ^ttype = @s64floattype;
{$endif MIPS}
function make_mangledname(const typeprefix:string;st:tsymtable;const suffix:string):string;
{ should be in the types unit, but the types unit uses the node stuff :( }
function is_interfacecom(def: tdef): boolean;
function is_interfacecorba(def: tdef): boolean;
function is_interface(def: tdef): boolean;
function is_object(def: tdef): boolean;
function is_class(def: tdef): boolean;
function is_cppclass(def: tdef): boolean;
function is_class_or_interface(def: tdef): boolean;
{$ifdef x86}
function use_sse(def : tdef) : boolean;
{$endif x86}
implementation
uses
strings,
{ global }
verbose,
{ target }
systems,aasmcpu,paramgr,
{ symtable }
symsym,symtable,symutil,defutil,
{ module }
fmodule,
{ other }
gendef,
crc
;
{****************************************************************************
Constants
****************************************************************************}
const
varempty = 0;
varnull = 1;
varsmallint = 2;
varinteger = 3;
varsingle = 4;
vardouble = 5;
varcurrency = 6;
vardate = 7;
varolestr = 8;
vardispatch = 9;
varerror = 10;
varboolean = 11;
varvariant = 12;
varunknown = 13;
vardecimal = 14;
varshortint = 16;
varbyte = 17;
varword = 18;
varlongword = 19;
varint64 = 20;
varqword = 21;
varUndefined = -1;
varstrarg = $48;
varstring = $100;
varany = $101;
vartypemask = $fff;
vararray = $2000;
varbyref = $4000;
{****************************************************************************
Helpers
****************************************************************************}
function make_mangledname(const typeprefix:string;st:tsymtable;const suffix:string):string;
var
s,hs,
prefix : string;
oldlen,
newlen,
i : longint;
crc : dword;
hp : tparavarsym;
begin
prefix:='';
if not assigned(st) then
internalerror(200204212);
{ sub procedures }
while (st.symtabletype=localsymtable) do
begin
if st.defowner.deftype<>procdef then
internalerror(200204173);
{ Add the full mangledname of procedure to prevent
conflicts with 2 overloads having both a nested procedure
with the same name, see tb0314 (PFV) }
s:=tprocdef(st.defowner).procsym.name;
oldlen:=length(s);
for i:=0 to tprocdef(st.defowner).paras.count-1 do
begin
hp:=tparavarsym(tprocdef(st.defowner).paras[i]);
if not(vo_is_hidden_para in hp.varoptions) then
s:=s+'$'+hp.vartype.def.mangledparaname;
end;
if not is_void(tprocdef(st.defowner).rettype.def) then
s:=s+'$$'+tprocdef(st.defowner).rettype.def.mangledparaname;
newlen:=length(s);
{ Replace with CRC if the parameter line is very long }
if (newlen-oldlen>12) and
((newlen>128) or (newlen-oldlen>64)) then
begin
crc:=$ffffffff;
for i:=0 to tprocdef(st.defowner).paras.count-1 do
begin
hp:=tparavarsym(tprocdef(st.defowner).paras[i]);
if not(vo_is_hidden_para in hp.varoptions) then
begin
hs:=hp.vartype.def.mangledparaname;
crc:=UpdateCrc32(crc,hs[1],length(hs));
end;
end;
hs:=hp.vartype.def.mangledparaname;
crc:=UpdateCrc32(crc,hs[1],length(hs));
s:=Copy(s,1,oldlen)+'$crc'+hexstr(crc,8);
end;
if prefix<>'' then
prefix:=s+'_'+prefix
else
prefix:=s;
st:=st.defowner.owner;
end;
{ object/classes symtable }
if (st.symtabletype=objectsymtable) then
begin
if st.defowner.deftype<>objectdef then
internalerror(200204174);
prefix:=tobjectdef(st.defowner).objname^+'_$_'+prefix;
st:=st.defowner.owner;
end;
{ symtable must now be static or global }
if not(st.symtabletype in [staticsymtable,globalsymtable]) then
internalerror(200204175);
result:='';
if typeprefix<>'' then
result:=result+typeprefix+'_';
{ Add P$ for program, which can have the same name as
a unit }
if (tsymtable(main_module.localsymtable)=st) and
(not main_module.is_unit) then
result:=result+'P$'+st.name^
else
result:=result+st.name^;
if prefix<>'' then
result:=result+'_'+prefix;
if suffix<>'' then
result:=result+'_'+suffix;
{ the Darwin assembler assumes that all symbols starting with 'L' are local }
if (target_info.system = system_powerpc_darwin) and
(result[1] = 'L') then
result := '_' + result;
end;
{****************************************************************************
TDEF (base class for definitions)
****************************************************************************}
constructor tstoreddef.create;
begin
inherited create;
savesize := 0;
{$ifdef EXTDEBUG}
fileinfo := aktfilepos;
{$endif}
if registerdef then
symtablestack.registerdef(self);
fillchar(localrttilab,sizeof(localrttilab),0);
end;
constructor tstoreddef.ppuloaddef(ppufile:tcompilerppufile);
begin
inherited create;
{$ifdef EXTDEBUG}
fillchar(fileinfo,sizeof(fileinfo),0);
{$endif}
fillchar(localrttilab,sizeof(localrttilab),0);
{ load }
indexnr:=ppufile.getword;
ppufile.getderef(typesymderef);
ppufile.getsmallset(defoptions);
if df_has_rttitable in defoptions then
ppufile.getderef(rttitablesymderef);
if df_has_inittable in defoptions then
ppufile.getderef(inittablesymderef);
end;
procedure Tstoreddef.reset;
begin
if assigned(rttitablesym) then
trttisym(rttitablesym).lab := nil;
if assigned(inittablesym) then
trttisym(inittablesym).lab := nil;
localrttilab[initrtti]:=nil;
localrttilab[fullrtti]:=nil;
end;
function tstoreddef.getcopy : tstoreddef;
begin
Message(sym_e_cant_create_unique_type);
getcopy:=terrordef.create;
end;
procedure tstoreddef.ppuwritedef(ppufile:tcompilerppufile);
begin
ppufile.putword(indexnr);
ppufile.putderef(typesymderef);
ppufile.putsmallset(defoptions);
if df_has_rttitable in defoptions then
ppufile.putderef(rttitablesymderef);
if df_has_inittable in defoptions then
ppufile.putderef(inittablesymderef);
end;
procedure tstoreddef.buildderef;
begin
typesymderef.build(typesym);
rttitablesymderef.build(rttitablesym);
inittablesymderef.build(inittablesym);
end;
procedure tstoreddef.buildderefimpl;
begin
end;
procedure tstoreddef.deref;
begin
typesym:=ttypesym(typesymderef.resolve);
if df_has_rttitable in defoptions then
rttitablesym:=trttisym(rttitablesymderef.resolve);
if df_has_inittable in defoptions then
inittablesym:=trttisym(inittablesymderef.resolve);
end;
procedure tstoreddef.derefimpl;
begin
end;
function tstoreddef.size : aint;
begin
size:=savesize;
end;
function tstoreddef.getvartype:longint;
begin
result:=varUndefined;
end;
function tstoreddef.alignment : longint;
begin
{ natural alignment by default }
alignment:=size_2_align(savesize);
end;
procedure tstoreddef.write_rtti_name;
var
str : string;
begin
{ name }
if assigned(typesym) then
begin
str:=ttypesym(typesym).realname;
asmlist[al_rtti].concat(Tai_string.Create(chr(length(str))+str));
end
else
asmlist[al_rtti].concat(Tai_string.Create(#0))
end;
procedure tstoreddef.write_rtti_data(rt:trttitype);
begin
asmlist[al_rtti].concat(tai_const.create_8bit(tkUnknown));
write_rtti_name;
end;
procedure tstoreddef.write_child_rtti_data(rt:trttitype);
begin
end;
function tstoreddef.get_rtti_label(rt:trttitype) : tasmsymbol;
begin
{ try to reuse persistent rtti data }
if (rt=fullrtti) and (df_has_rttitable in defoptions) then
get_rtti_label:=trttisym(rttitablesym).get_label
else
if (rt=initrtti) and (df_has_inittable in defoptions) then
get_rtti_label:=trttisym(inittablesym).get_label
else
begin
if not assigned(localrttilab[rt]) then
begin
objectlibrary.getdatalabel(localrttilab[rt]);
write_child_rtti_data(rt);
maybe_new_object_file(asmlist[al_rtti]);
new_section(asmlist[al_rtti],sec_rodata,localrttilab[rt].name,const_align(sizeof(aint)));
asmlist[al_rtti].concat(Tai_symbol.Create_global(localrttilab[rt],0));
write_rtti_data(rt);
asmlist[al_rtti].concat(Tai_symbol_end.Create(localrttilab[rt]));
end;
get_rtti_label:=localrttilab[rt];
end;
end;
{ returns true, if the definition can be published }
function tstoreddef.is_publishable : boolean;
begin
is_publishable:=false;
end;
{ needs an init table }
function tstoreddef.needs_inittable : boolean;
begin
needs_inittable:=false;
end;
function tstoreddef.is_intregable : boolean;
begin
is_intregable:=false;
case deftype of
orddef,
pointerdef,
enumdef:
is_intregable:=true;
procvardef :
is_intregable:=not(po_methodpointer in tprocvardef(self).procoptions);
objectdef:
is_intregable:=is_class(self) or is_interface(self);
setdef:
is_intregable:=(tsetdef(self).settype=smallset);
end;
end;
function tstoreddef.is_fpuregable : boolean;
begin
{$ifdef x86}
result:=use_sse(self);
{$else x86}
result:=(deftype=floatdef) and not(cs_fp_emulation in aktmoduleswitches);
{$endif x86}
end;
{****************************************************************************
Tstringdef
****************************************************************************}
constructor tstringdef.createshort(l : byte);
begin
inherited create;
string_typ:=st_shortstring;
deftype:=stringdef;
len:=l;
savesize:=len+1;
end;
constructor tstringdef.loadshort(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
string_typ:=st_shortstring;
deftype:=stringdef;
len:=ppufile.getbyte;
savesize:=len+1;
end;
constructor tstringdef.createlong(l : aint);
begin
inherited create;
string_typ:=st_longstring;
deftype:=stringdef;
len:=l;
savesize:=sizeof(aint);
end;
constructor tstringdef.loadlong(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=stringdef;
string_typ:=st_longstring;
len:=ppufile.getaint;
savesize:=sizeof(aint);
end;
{$ifdef ansistring_bits}
constructor tstringdef.createansi(l:aint;bits:Tstringbits);
begin
inherited create;
case bits of
sb_16:
string_typ:=st_ansistring16;
sb_32:
string_typ:=st_ansistring32;
sb_64:
string_typ:=st_ansistring64;
end;
deftype:=stringdef;
len:=l;
savesize:=POINTER_SIZE;
end;
constructor tstringdef.loadansi(ppufile:tcompilerppufile;bits:Tstringbits);
begin
inherited ppuloaddef(ppufile);
deftype:=stringdef;
case bits of
sb_16:
string_typ:=st_ansistring16;
sb_32:
string_typ:=st_ansistring32;
sb_64:
string_typ:=st_ansistring64;
end;
len:=ppufile.getaint;
savesize:=POINTER_SIZE;
end;
{$else}
constructor tstringdef.createansi(l:aint);
begin
inherited create;
string_typ:=st_ansistring;
deftype:=stringdef;
len:=l;
savesize:=sizeof(aint);
end;
constructor tstringdef.loadansi(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=stringdef;
string_typ:=st_ansistring;
len:=ppufile.getaint;
savesize:=sizeof(aint);
end;
{$endif}
constructor tstringdef.createwide(l : aint);
begin
inherited create;
string_typ:=st_widestring;
deftype:=stringdef;
len:=l;
savesize:=sizeof(aint);
end;
constructor tstringdef.loadwide(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=stringdef;
string_typ:=st_widestring;
len:=ppufile.getaint;
savesize:=sizeof(aint);
end;
function tstringdef.getcopy : tstoreddef;
begin
result:=tstringdef.create;
result.deftype:=stringdef;
tstringdef(result).string_typ:=string_typ;
tstringdef(result).len:=len;
tstringdef(result).savesize:=savesize;
end;
function tstringdef.stringtypname:string;
{$ifdef ansistring_bits}
const
typname:array[tstringtype] of string[9]=('',
'shortstr','longstr','ansistr16','ansistr32','ansistr64','widestr'
);
{$else}
const
typname:array[tstringtype] of string[8]=('',
'shortstr','longstr','ansistr','widestr'
);
{$endif}
begin
stringtypname:=typname[string_typ];
end;
procedure tstringdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
if string_typ=st_shortstring then
begin
{$ifdef extdebug}
if len > 255 then internalerror(12122002);
{$endif}
ppufile.putbyte(byte(len))
end
else
ppufile.putaint(len);
case string_typ of
st_shortstring : ppufile.writeentry(ibshortstringdef);
st_longstring : ppufile.writeentry(iblongstringdef);
{$ifdef ansistring_bits}
st_ansistring16 : ppufile.writeentry(ibansistring16def);
st_ansistring32 : ppufile.writeentry(ibansistring32def);
st_ansistring64 : ppufile.writeentry(ibansistring64def);
{$else}
st_ansistring : ppufile.writeentry(ibansistringdef);
{$endif}
st_widestring : ppufile.writeentry(ibwidestringdef);
end;
end;
function tstringdef.needs_inittable : boolean;
begin
{$ifdef ansistring_bits}
needs_inittable:=string_typ in [st_ansistring16,st_ansistring32,st_ansistring64,st_widestring];
{$else}
needs_inittable:=string_typ in [st_ansistring,st_widestring];
{$endif}
end;
function tstringdef.gettypename : string;
{$ifdef ansistring_bits}
const
names : array[tstringtype] of string[20] = ('',
'shortstring','longstring','ansistring16','ansistring32','ansistring64','widestring');
{$else}
const
names : array[tstringtype] of string[20] = ('',
'ShortString','LongString','AnsiString','WideString');
{$endif}
begin
gettypename:=names[string_typ];
end;
function tstringdef.alignment : longint;
begin
case string_typ of
st_widestring,
st_ansistring:
alignment:=size_2_align(savesize);
st_longstring,
st_shortstring:
{$ifdef cpurequiresproperalignment}
{ char to string accesses byte 0 and 1 with one word access }
alignment:=size_2_align(2);
{$else cpurequiresproperalignment}
alignment:=size_2_align(1);
{$endif cpurequiresproperalignment}
else
internalerror(200412301);
end;
end;
procedure tstringdef.write_rtti_data(rt:trttitype);
begin
case string_typ of
{$ifdef ansistring_bits}
st_ansistring16:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkA16String));
write_rtti_name;
end;
st_ansistring32:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkA32String));
write_rtti_name;
end;
st_ansistring64:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkA64String));
write_rtti_name;
end;
{$else}
st_ansistring:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkAString));
write_rtti_name;
end;
{$endif}
st_widestring:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkWString));
write_rtti_name;
end;
st_longstring:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkLString));
write_rtti_name;
end;
st_shortstring:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkSString));
write_rtti_name;
asmlist[al_rtti].concat(Tai_const.Create_8bit(len));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
end;
end;
end;
function tstringdef.getmangledparaname : string;
begin
getmangledparaname:='STRING';
end;
function tstringdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
{****************************************************************************
TENUMDEF
****************************************************************************}
constructor tenumdef.create;
begin
inherited create;
deftype:=enumdef;
minval:=0;
maxval:=0;
calcsavesize;
has_jumps:=false;
basedef:=nil;
firstenum:=nil;
correct_owner_symtable;
end;
constructor tenumdef.create_subrange(_basedef:tenumdef;_min,_max:aint);
begin
inherited create;
deftype:=enumdef;
minval:=_min;
maxval:=_max;
basedef:=_basedef;
calcsavesize;
has_jumps:=false;
firstenum:=basedef.firstenum;
while assigned(firstenum) and (tenumsym(firstenum).value<>minval) do
firstenum:=tenumsym(firstenum).nextenum;
correct_owner_symtable;
end;
constructor tenumdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=enumdef;
ppufile.getderef(basedefderef);
minval:=ppufile.getaint;
maxval:=ppufile.getaint;
savesize:=ppufile.getaint;
has_jumps:=false;
firstenum:=Nil;
end;
function tenumdef.getcopy : tstoreddef;
begin
if assigned(basedef) then
result:=tenumdef.create_subrange(basedef,minval,maxval)
else
begin
result:=tenumdef.create;
tenumdef(result).minval:=minval;
tenumdef(result).maxval:=maxval;
end;
tenumdef(result).has_jumps:=has_jumps;
tenumdef(result).firstenum:=firstenum;
tenumdef(result).basedefderef:=basedefderef;
end;
procedure tenumdef.calcsavesize;
begin
if (aktpackenum=8) or (min<low(longint)) or (int64(max)>high(cardinal)) then
savesize:=8
else
if (aktpackenum=4) or (min<low(smallint)) or (max>high(word)) then
savesize:=4
else
if (aktpackenum=2) or (min<low(shortint)) or (max>high(byte)) then
savesize:=2
else
savesize:=1;
end;
procedure tenumdef.setmax(_max:aint);
begin
maxval:=_max;
calcsavesize;
end;
procedure tenumdef.setmin(_min:aint);
begin
minval:=_min;
calcsavesize;
end;
function tenumdef.min:aint;
begin
min:=minval;
end;
function tenumdef.max:aint;
begin
max:=maxval;
end;
procedure tenumdef.buildderef;
begin
inherited buildderef;
basedefderef.build(basedef);
end;
procedure tenumdef.deref;
begin
inherited deref;
basedef:=tenumdef(basedefderef.resolve);
{ restart ordering }
firstenum:=nil;
end;
procedure tenumdef.derefimpl;
begin
if assigned(basedef) and
(firstenum=nil) then
begin
firstenum:=basedef.firstenum;
while assigned(firstenum) and (tenumsym(firstenum).value<>minval) do
firstenum:=tenumsym(firstenum).nextenum;
end;
end;
destructor tenumdef.destroy;
begin
inherited destroy;
end;
procedure tenumdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.putderef(basedefderef);
ppufile.putaint(min);
ppufile.putaint(max);
ppufile.putaint(savesize);
ppufile.writeentry(ibenumdef);
end;
{ used for enumdef because the symbols are
inserted in the owner symtable }
procedure tenumdef.correct_owner_symtable;
var
st : tsymtable;
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;
procedure tenumdef.write_child_rtti_data(rt:trttitype);
begin
if assigned(basedef) then
basedef.get_rtti_label(rt);
end;
procedure tenumdef.write_rtti_data(rt:trttitype);
var
hp : tenumsym;
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkEnumeration));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
case longint(savesize) of
1:
asmlist[al_rtti].concat(Tai_const.Create_8bit(otUByte));
2:
asmlist[al_rtti].concat(Tai_const.Create_8bit(otUWord));
4:
asmlist[al_rtti].concat(Tai_const.Create_8bit(otULong));
end;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(4));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_32bit(min));
asmlist[al_rtti].concat(Tai_const.Create_32bit(max));
if assigned(basedef) then
asmlist[al_rtti].concat(Tai_const.Create_sym(basedef.get_rtti_label(rt)))
else
asmlist[al_rtti].concat(Tai_const.create_sym(nil));
hp:=tenumsym(firstenum);
while assigned(hp) do
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(hp.realname)));
asmlist[al_rtti].concat(Tai_string.Create(hp.realname));
hp:=hp.nextenum;
end;
asmlist[al_rtti].concat(Tai_const.Create_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.create(t : tbasetype;v,b : TConstExprInt);
begin
inherited create;
deftype:=orddef;
low:=v;
high:=b;
typ:=t;
setsize;
end;
constructor torddef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=orddef;
typ:=tbasetype(ppufile.getbyte);
if sizeof(TConstExprInt)=8 then
begin
low:=ppufile.getint64;
high:=ppufile.getint64;
end
else
begin
low:=ppufile.getlongint;
high:=ppufile.getlongint;
end;
setsize;
end;
function torddef.getcopy : tstoreddef;
begin
result:=torddef.create(typ,low,high);
result.deftype:=orddef;
torddef(result).low:=low;
torddef(result).high:=high;
torddef(result).typ:=typ;
torddef(result).savesize:=savesize;
end;
procedure torddef.setsize;
const
sizetbl : array[tbasetype] of longint = (
0,
1,2,4,8,
1,2,4,8,
1,2,4,
1,2,8
);
begin
savesize:=sizetbl[typ];
end;
function torddef.getvartype : longint;
const
basetype2vartype : array[tbasetype] of longint = (
varUndefined,
varbyte,varqword,varlongword,varqword,
varshortint,varsmallint,varinteger,varint64,
varboolean,varUndefined,varUndefined,
varUndefined,varUndefined,varCurrency);
begin
result:=basetype2vartype[typ];
end;
procedure torddef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.putbyte(byte(typ));
if sizeof(TConstExprInt)=8 then
begin
ppufile.putint64(low);
ppufile.putint64(high);
end
else
begin
ppufile.putlongint(low);
ppufile.putlongint(high);
end;
ppufile.writeentry(iborddef);
end;
procedure torddef.write_rtti_data(rt:trttitype);
procedure dointeger;
const
trans : array[tbasetype] of byte =
(otUByte{otNone},
otUByte,otUWord,otULong,otUByte{otNone},
otSByte,otSWord,otSLong,otUByte{otNone},
otUByte,otUWord,otULong,
otUByte,otUWord,otUByte);
begin
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_8bit(byte(trans[typ])));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(4));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_32bit(longint(low)));
asmlist[al_rtti].concat(Tai_const.Create_32bit(longint(high)));
end;
begin
case typ of
s64bit :
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkInt64));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
{ low }
asmlist[al_rtti].concat(Tai_const.Create_64bit(int64($80000000) shl 32));
{ high }
asmlist[al_rtti].concat(Tai_const.Create_64bit((int64($7fffffff) shl 32) or int64($ffffffff)));
end;
u64bit :
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkQWord));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
{ low }
asmlist[al_rtti].concat(Tai_const.Create_64bit(0));
{ high }
asmlist[al_rtti].concat(Tai_const.Create_64bit(int64((int64($ffffffff) shl 32) or int64($ffffffff))));
end;
bool8bit:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkBool));
dointeger;
end;
uchar:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkChar));
dointeger;
end;
uwidechar:
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkWChar));
dointeger;
end;
else
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkInteger));
dointeger;
end;
end;
end;
function torddef.is_publishable : boolean;
begin
is_publishable:=(typ<>uvoid);
end;
function torddef.gettypename : string;
const
names : array[tbasetype] of string[20] = (
'untyped',
'Byte','Word','DWord','QWord',
'ShortInt','SmallInt','LongInt','Int64',
'Boolean','WordBool','LongBool',
'Char','WideChar','Currency');
begin
gettypename:=names[typ];
end;
{****************************************************************************
TFLOATDEF
****************************************************************************}
constructor tfloatdef.create(t : tfloattype);
begin
inherited create;
deftype:=floatdef;
typ:=t;
setsize;
end;
constructor tfloatdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=floatdef;
typ:=tfloattype(ppufile.getbyte);
setsize;
end;
function tfloatdef.getcopy : tstoreddef;
begin
result:=tfloatdef.create(typ);
result.deftype:=floatdef;
tfloatdef(result).savesize:=savesize;
end;
procedure tfloatdef.setsize;
begin
case typ of
s32real : savesize:=4;
s80real : savesize:=10;
s64real,
s64currency,
s64comp : savesize:=8;
else
savesize:=0;
end;
end;
function tfloatdef.getvartype : longint;
const
floattype2vartype : array[tfloattype] of longint = (
varSingle,varDouble,varUndefined,
varUndefined,varCurrency,varUndefined);
begin
if (upper(typename)='TDATETIME') and
assigned(owner) and
assigned(owner.name) and
(owner.name^='SYSTEM') then
result:=varDate
else
result:=floattype2vartype[typ];
end;
procedure tfloatdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.putbyte(byte(typ));
ppufile.writeentry(ibfloatdef);
end;
procedure tfloatdef.write_rtti_data(rt:trttitype);
const
{tfloattype = (s32real,s64real,s80real,s64bit,s128bit);}
translate : array[tfloattype] of byte =
(ftSingle,ftDouble,ftExtended,ftComp,ftCurr,ftFloat128);
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkFloat));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_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','Currency','Float128');
begin
gettypename:=names[typ];
end;
{****************************************************************************
TFILEDEF
****************************************************************************}
constructor tfiledef.createtext;
begin
inherited create;
deftype:=filedef;
filetyp:=ft_text;
typedfiletype.reset;
setsize;
end;
constructor tfiledef.createuntyped;
begin
inherited create;
deftype:=filedef;
filetyp:=ft_untyped;
typedfiletype.reset;
setsize;
end;
constructor tfiledef.createtyped(const tt : ttype);
begin
inherited create;
deftype:=filedef;
filetyp:=ft_typed;
typedfiletype:=tt;
setsize;
end;
constructor tfiledef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=filedef;
filetyp:=tfiletyp(ppufile.getbyte);
if filetyp=ft_typed then
ppufile.gettype(typedfiletype)
else
typedfiletype.reset;
setsize;
end;
function tfiledef.getcopy : tstoreddef;
begin
case filetyp of
ft_typed:
result:=tfiledef.createtyped(typedfiletype);
ft_untyped:
result:=tfiledef.createuntyped;
ft_text:
result:=tfiledef.createtext;
else
internalerror(2004121201);
end;
end;
procedure tfiledef.buildderef;
begin
inherited buildderef;
if filetyp=ft_typed then
typedfiletype.buildderef;
end;
procedure tfiledef.deref;
begin
inherited deref;
if filetyp=ft_typed then
typedfiletype.resolve;
end;
procedure tfiledef.setsize;
begin
{$ifdef cpu64bit}
case filetyp of
ft_text :
if target_info.system in [system_x86_64_win64,system_ia64_win64] then
savesize:=632
else
savesize:=628;
ft_typed,
ft_untyped :
if target_info.system in [system_x86_64_win64,system_ia64_win64] then
savesize:=372
else
savesize:=368;
end;
{$else cpu64bit}
case filetyp of
ft_text :
savesize:=592;
ft_typed,
ft_untyped :
savesize:=332;
end;
{$endif cpu64bit}
end;
procedure tfiledef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.putbyte(byte(filetyp));
if filetyp=ft_typed then
ppufile.puttype(typedfiletype);
ppufile.writeentry(ibfiledef);
end;
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;
function tfiledef.getmangledparaname : string;
begin
case filetyp of
ft_untyped:
getmangledparaname:='FILE';
ft_typed:
getmangledparaname:='FILE$OF$'+typedfiletype.def.mangledparaname;
ft_text:
getmangledparaname:='TEXT'
end;
end;
{****************************************************************************
TVARIANTDEF
****************************************************************************}
constructor tvariantdef.create(v : tvarianttype);
begin
inherited create;
varianttype:=v;
deftype:=variantdef;
setsize;
end;
constructor tvariantdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
varianttype:=tvarianttype(ppufile.getbyte);
deftype:=variantdef;
setsize;
end;
function tvariantdef.getcopy : tstoreddef;
begin
result:=tvariantdef.create(varianttype);
end;
procedure tvariantdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.putbyte(byte(varianttype));
ppufile.writeentry(ibvariantdef);
end;
procedure tvariantdef.setsize;
begin
savesize:=16;
end;
function tvariantdef.gettypename : string;
begin
case varianttype of
vt_normalvariant:
gettypename:='Variant';
vt_olevariant:
gettypename:='OleVariant';
end;
end;
procedure tvariantdef.write_rtti_data(rt:trttitype);
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkVariant));
end;
function tvariantdef.needs_inittable : boolean;
begin
needs_inittable:=true;
end;
function tvariantdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
{****************************************************************************
TPOINTERDEF
****************************************************************************}
constructor tpointerdef.create(const tt : ttype);
begin
inherited create;
deftype:=pointerdef;
pointertype:=tt;
is_far:=false;
savesize:=sizeof(aint);
end;
constructor tpointerdef.createfar(const tt : ttype);
begin
inherited create;
deftype:=pointerdef;
pointertype:=tt;
is_far:=true;
savesize:=sizeof(aint);
end;
constructor tpointerdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=pointerdef;
ppufile.gettype(pointertype);
is_far:=(ppufile.getbyte<>0);
savesize:=sizeof(aint);
end;
function tpointerdef.getcopy : tstoreddef;
begin
result:=tpointerdef.create(pointertype);
tpointerdef(result).is_far:=is_far;
tpointerdef(result).savesize:=savesize;
end;
procedure tpointerdef.buildderef;
begin
inherited buildderef;
pointertype.buildderef;
end;
procedure tpointerdef.deref;
begin
inherited deref;
pointertype.resolve;
end;
procedure tpointerdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.puttype(pointertype);
ppufile.putbyte(byte(is_far));
ppufile.writeentry(ibpointerdef);
end;
function tpointerdef.gettypename : string;
begin
if is_far then
gettypename:='^'+pointertype.def.typename+';far'
else
gettypename:='^'+pointertype.def.typename;
end;
{****************************************************************************
TCLASSREFDEF
****************************************************************************}
constructor tclassrefdef.create(const t:ttype);
begin
inherited create(t);
deftype:=classrefdef;
end;
constructor tclassrefdef.ppuload(ppufile:tcompilerppufile);
begin
{ be careful, tclassdefref inherits from tpointerdef }
inherited ppuloaddef(ppufile);
deftype:=classrefdef;
ppufile.gettype(pointertype);
is_far:=false;
savesize:=sizeof(aint);
end;
procedure tclassrefdef.ppuwrite(ppufile:tcompilerppufile);
begin
{ be careful, tclassdefref inherits from tpointerdef }
inherited ppuwritedef(ppufile);
ppufile.puttype(pointertype);
ppufile.writeentry(ibclassrefdef);
end;
function tclassrefdef.gettypename : string;
begin
gettypename:='Class Of '+pointertype.def.typename;
end;
function tclassrefdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
{***************************************************************************
TSETDEF
***************************************************************************}
constructor tsetdef.create(const t:ttype;high : aint);
begin
inherited create;
deftype:=setdef;
elementtype:=t;
// setbase:=low;
setmax:=high;
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
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.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=setdef;
ppufile.gettype(elementtype);
settype:=tsettype(ppufile.getbyte);
case settype of
normset : savesize:=32;
varset : savesize:=ppufile.getlongint;
smallset : savesize:=Sizeof(longint);
end;
end;
destructor tsetdef.destroy;
begin
inherited destroy;
end;
function tsetdef.getcopy : tstoreddef;
begin
case settype of
smallset:
result:=tsetdef.create(elementtype,31);
normset:
result:=tsetdef.create(elementtype,255);
else
internalerror(2004121202);
end;
end;
procedure tsetdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.puttype(elementtype);
ppufile.putbyte(byte(settype));
if settype=varset then
ppufile.putlongint(savesize);
if settype=normset then
ppufile.putaint(savesize);
ppufile.writeentry(ibsetdef);
end;
procedure tsetdef.buildderef;
begin
inherited buildderef;
elementtype.buildderef;
end;
procedure tsetdef.deref;
begin
inherited deref;
elementtype.resolve;
end;
procedure tsetdef.write_child_rtti_data(rt:trttitype);
begin
tstoreddef(elementtype.def).get_rtti_label(rt);
end;
procedure tsetdef.write_rtti_data(rt:trttitype);
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkSet));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_8bit(otULong));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_sym(tstoreddef(elementtype.def).get_rtti_label(rt)));
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.create;
var
stregdef : boolean;
begin
stregdef:=registerdef;
registerdef:=false;
inherited create;
deftype:=formaldef;
registerdef:=stregdef;
{ formaldef must be registered at unit level !! }
if registerdef and assigned(current_module) then
if assigned(current_module.localsymtable) then
tsymtable(current_module.localsymtable).registerdef(self)
else if assigned(current_module.globalsymtable) then
tsymtable(current_module.globalsymtable).registerdef(self);
savesize:=0;
end;
constructor tformaldef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=formaldef;
savesize:=0;
end;
procedure tformaldef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.writeentry(ibformaldef);
end;
function tformaldef.gettypename : string;
begin
gettypename:='<Formal type>';
end;
{***************************************************************************
TARRAYDEF
***************************************************************************}
constructor tarraydef.create(l,h : aint;const t : ttype);
begin
inherited create;
deftype:=arraydef;
lowrange:=l;
highrange:=h;
rangetype:=t;
elementtype.reset;
IsVariant:=false;
IsConstructor:=false;
IsArrayOfConst:=false;
IsDynamicArray:=false;
IsConvertedPointer:=false;
end;
constructor tarraydef.create_from_pointer(const elemt : ttype);
begin
self.create(0,$7fffffff,s32inttype);
IsConvertedPointer:=true;
setelementtype(elemt);
end;
constructor tarraydef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=arraydef;
{ the addresses are calculated later }
ppufile.gettype(_elementtype);
ppufile.gettype(rangetype);
lowrange:=ppufile.getaint;
highrange:=ppufile.getaint;
IsArrayOfConst:=boolean(ppufile.getbyte);
IsDynamicArray:=boolean(ppufile.getbyte);
IsVariant:=false;
IsConstructor:=false;
end;
function tarraydef.getcopy : tstoreddef;
begin
result:=tarraydef.create(lowrange,highrange,rangetype);
tarraydef(result).IsConvertedPointer:=IsConvertedPointer;
tarraydef(result).IsDynamicArray:=IsDynamicArray;
tarraydef(result).IsVariant:=IsVariant;
tarraydef(result).IsConstructor:=IsConstructor;
tarraydef(result).IsArrayOfConst:=IsArrayOfConst;
tarraydef(result)._elementtype:=_elementtype;
end;
procedure tarraydef.buildderef;
begin
inherited buildderef;
_elementtype.buildderef;
rangetype.buildderef;
end;
procedure tarraydef.deref;
begin
inherited deref;
_elementtype.resolve;
rangetype.resolve;
end;
procedure tarraydef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.puttype(_elementtype);
ppufile.puttype(rangetype);
ppufile.putaint(lowrange);
ppufile.putaint(highrange);
ppufile.putbyte(byte(IsArrayOfConst));
ppufile.putbyte(byte(IsDynamicArray));
ppufile.writeentry(ibarraydef);
end;
function tarraydef.elesize : aint;
begin
elesize:=_elementtype.def.size;
end;
function tarraydef.elecount : aint;
var
qhigh,qlow : qword;
begin
if IsDynamicArray then
begin
result:=0;
exit;
end;
if (highrange>0) and (lowrange<0) then
begin
qhigh:=highrange;
qlow:=qword(-lowrange);
{ prevent overflow, return -1 to indicate overflow }
if qhigh+qlow>qword(high(aint)-1) then
result:=-1
else
result:=qhigh+qlow+1;
end
else
result:=int64(highrange)-lowrange+1;
end;
function tarraydef.size : aint;
var
cachedelecount,
cachedelesize : aint;
begin
if IsDynamicArray then
begin
size:=sizeof(aint);
exit;
end;
{ Tarraydef.size may never be called for an open array! }
if highrange<lowrange then
internalerror(99080501);
cachedelesize:=elesize;
cachedelecount:=elecount;
{ prevent overflow, return -1 to indicate overflow }
if (cachedelesize <> 0) and
(
(cachedelecount < 0) or
((high(aint) div cachedelesize) < cachedelecount) or
{ also lowrange*elesize must be < high(aint) to prevent overflow when
accessing the array, see ncgmem (PFV) }
((high(aint) div cachedelesize) < abs(lowrange))
) then
result:=-1
else
result:=cachedelesize*cachedelecount;
end;
procedure tarraydef.setelementtype(t: ttype);
begin
_elementtype:=t;
if not(IsDynamicArray or
IsConvertedPointer or
(highrange<lowrange)) then
begin
if (size=-1) then
Message(sym_e_segment_too_large);
end;
end;
function tarraydef.alignment : longint;
begin
{ alignment is the size of the elements }
if (elementtype.def.deftype in [arraydef,recorddef]) or
((elementtype.def.deftype=objectdef) and
is_object(elementtype.def)) 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(rt:trttitype);
begin
tstoreddef(elementtype.def).get_rtti_label(rt);
end;
procedure tarraydef.write_rtti_data(rt:trttitype);
begin
if IsDynamicArray then
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkdynarray))
else
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkarray));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
{ size of elements }
asmlist[al_rtti].concat(Tai_const.Create_aint(elesize));
if not(IsDynamicArray) then
asmlist[al_rtti].concat(Tai_const.Create_aint(elecount));
{ element type }
asmlist[al_rtti].concat(Tai_const.Create_sym(tstoreddef(elementtype.def).get_rtti_label(rt)));
{ variant type }
asmlist[al_rtti].concat(Tai_const.Create_32bit(tstoreddef(elementtype.def).getvartype));
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;
function tarraydef.getmangledparaname : string;
begin
if isarrayofconst then
getmangledparaname:='array_of_const'
else
if ((highrange=-1) and (lowrange=0)) then
getmangledparaname:='array_of_'+elementtype.def.mangledparaname
else
internalerror(200204176);
end;
{***************************************************************************
tabstractrecorddef
***************************************************************************}
function tabstractrecorddef.getsymtable(t:tgetsymtable):tsymtable;
begin
if t=gs_record then
getsymtable:=symtable
else
getsymtable:=nil;
end;
procedure tabstractrecorddef.reset;
begin
tstoredsymtable(symtable).reset_all_defs;
end;
procedure tabstractrecorddef.count_field_rtti(sym : tnamedindexitem;arg:pointer);
begin
if (FRTTIType=fullrtti) or
((tsym(sym).typ=fieldvarsym) and
tfieldvarsym(sym).vartype.def.needs_inittable) then
inc(Count);
end;
procedure tabstractrecorddef.generate_field_rtti(sym:tnamedindexitem;arg:pointer);
begin
if (FRTTIType=fullrtti) or
((tsym(sym).typ=fieldvarsym) and
tfieldvarsym(sym).vartype.def.needs_inittable) then
tstoreddef(tfieldvarsym(sym).vartype.def).get_rtti_label(FRTTIType);
end;
procedure tabstractrecorddef.write_field_rtti(sym : tnamedindexitem;arg:pointer);
begin
if (FRTTIType=fullrtti) or
((tsym(sym).typ=fieldvarsym) and
tfieldvarsym(sym).vartype.def.needs_inittable) then
begin
asmlist[al_rtti].concat(Tai_const.Create_sym(tstoreddef(tfieldvarsym(sym).vartype.def).get_rtti_label(FRTTIType)));
asmlist[al_rtti].concat(Tai_const.Create_32bit(tfieldvarsym(sym).fieldoffset));
end;
end;
{***************************************************************************
trecorddef
***************************************************************************}
constructor trecorddef.create(p : tsymtable);
begin
inherited create;
deftype:=recorddef;
symtable:=p;
symtable.defowner:=self;
isunion:=false;
end;
constructor trecorddef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuloaddef(ppufile);
deftype:=recorddef;
symtable:=trecordsymtable.create(0);
trecordsymtable(symtable).datasize:=ppufile.getaint;
trecordsymtable(symtable).fieldalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).recordalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).padalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).ppuload(ppufile);
symtable.defowner:=self;
isunion:=false;
end;
destructor trecorddef.destroy;
begin
if assigned(symtable) then
symtable.free;
inherited destroy;
end;
function trecorddef.getcopy : tstoreddef;
begin
result:=trecorddef.create(symtable.getcopy);
trecorddef(result).isunion:=isunion;
end;
function trecorddef.needs_inittable : boolean;
begin
needs_inittable:=trecordsymtable(symtable).needs_init_final
end;
procedure trecorddef.buildderef;
var
oldrecsyms : tsymtable;
begin
inherited buildderef;
oldrecsyms:=aktrecordsymtable;
aktrecordsymtable:=symtable;
{ now build the definitions }
tstoredsymtable(symtable).buildderef;
aktrecordsymtable:=oldrecsyms;
end;
procedure trecorddef.deref;
var
oldrecsyms : tsymtable;
begin
inherited deref;
oldrecsyms:=aktrecordsymtable;
aktrecordsymtable:=symtable;
{ now dereference the definitions }
tstoredsymtable(symtable).deref;
aktrecordsymtable:=oldrecsyms;
{ assign TGUID? load only from system unit }
if not(assigned(rec_tguid)) and
(upper(typename)='TGUID') and
assigned(owner) and
assigned(owner.name) and
(owner.name^='SYSTEM') then
rec_tguid:=self;
end;
procedure trecorddef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwritedef(ppufile);
ppufile.putaint(trecordsymtable(symtable).datasize);
ppufile.putbyte(byte(trecordsymtable(symtable).fieldalignment));
ppufile.putbyte(byte(trecordsymtable(symtable).recordalignment));
ppufile.putbyte(byte(trecordsymtable(symtable).padalignment));
ppufile.writeentry(ibrecorddef);
trecordsymtable(symtable).ppuwrite(ppufile);
end;
function trecorddef.size:aint;
begin
result:=trecordsymtable(symtable).datasize;
end;
function trecorddef.alignment:longint;
begin
alignment:=trecordsymtable(symtable).recordalignment;
end;
function trecorddef.padalignment:longint;
begin
padalignment := trecordsymtable(symtable).padalignment;
end;
procedure trecorddef.write_child_rtti_data(rt:trttitype);
begin
FRTTIType:=rt;
symtable.foreach(@generate_field_rtti,nil);
end;
procedure trecorddef.write_rtti_data(rt:trttitype);
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkrecord));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_32bit(size));
Count:=0;
FRTTIType:=rt;
symtable.foreach(@count_field_rtti,nil);
asmlist[al_rtti].concat(Tai_const.Create_32bit(Count));
symtable.foreach(@write_field_rtti,nil);
end;
function trecorddef.gettypename : string;
begin
gettypename:='<record type>'
end;
{***************************************************************************
TABSTRACTPROCDEF
***************************************************************************}
constructor tabstractprocdef.create(level:byte);
begin
inherited create;
parast:=tparasymtable.create(level);
parast.defowner:=self;
parast.next:=owner;
paras:=nil;
minparacount:=0;
maxparacount:=0;
proctypeoption:=potype_none;
proccalloption:=pocall_none;
procoptions:=[];
rettype:=voidtype;
{$ifdef i386}
fpu_used:=0;
{$endif i386}
savesize:=sizeof(aint);
requiredargarea:=0;
has_paraloc_info:=false;
location_reset(funcretloc[callerside],LOC_INVALID,OS_NO);
location_reset(funcretloc[calleeside],LOC_INVALID,OS_NO);
end;
destructor tabstractprocdef.destroy;
begin
if assigned(paras) then
begin
{$ifdef MEMDEBUG}
memprocpara.start;
{$endif MEMDEBUG}
paras.free;
{$ifdef MEMDEBUG}
memprocpara.stop;
{$endif MEMDEBUG}
end;
if assigned(parast) then
begin
{$ifdef MEMDEBUG}
memprocparast.start;
{$endif MEMDEBUG}
parast.free;
{$ifdef MEMDEBUG}
memprocparast.stop;
{$endif MEMDEBUG}
end;
inherited destroy;
end;
procedure tabstractprocdef.releasemem;
begin
if assigned(paras) then
begin
paras.free;
paras:=nil;
end;
parast.free;
parast:=nil;
end;
procedure tabstractprocdef.count_para(p:tnamedindexitem;arg:pointer);
begin
if (tsym(p).typ<>paravarsym) then
exit;
inc(plongint(arg)^);
if not(vo_is_hidden_para in tparavarsym(p).varoptions) then
begin
if not assigned(tparavarsym(p).defaultconstsym) then
inc(minparacount);
inc(maxparacount);
end;
end;
procedure tabstractprocdef.insert_para(p:tnamedindexitem;arg:pointer);
begin
if (tsym(p).typ<>paravarsym) then
exit;
paras.add(p);
end;
procedure tabstractprocdef.calcparas;
var
paracount : longint;
begin
{ This can already be assigned when
we need to reresolve this unit (PFV) }
if assigned(paras) then
paras.free;
paras:=tparalist.create;
paracount:=0;
minparacount:=0;
maxparacount:=0;
parast.foreach(@count_para,@paracount);
paras.capacity:=paracount;
{ Insert parameters in table }
parast.foreach(@insert_para,nil);
{ Order parameters }
paras.sortparas;
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
{$ifdef i386}
if assigned(rettype.def) and
(rettype.def.deftype=floatdef) then
fpu_used:=maxfpuregs;
{$endif i386}
end;
procedure tabstractprocdef.buildderef;
begin
{ released procdef? }
if not assigned(parast) then
exit;
inherited buildderef;
rettype.buildderef;
{ parast }
tparasymtable(parast).buildderef;
end;
procedure tabstractprocdef.deref;
begin
inherited deref;
rettype.resolve;
{ parast }
tparasymtable(parast).deref;
{ recalculated parameters }
calcparas;
end;
constructor tabstractprocdef.ppuload(ppufile:tcompilerppufile);
var
b : byte;
begin
inherited ppuloaddef(ppufile);
parast:=nil;
Paras:=nil;
minparacount:=0;
maxparacount:=0;
ppufile.gettype(rettype);
{$ifdef i386}
fpu_used:=ppufile.getbyte;
{$else}
ppufile.getbyte;
{$endif i386}
proctypeoption:=tproctypeoption(ppufile.getbyte);
proccalloption:=tproccalloption(ppufile.getbyte);
ppufile.getnormalset(procoptions);
location_reset(funcretloc[callerside],LOC_INVALID,OS_NO);
location_reset(funcretloc[calleeside],LOC_INVALID,OS_NO);
if po_explicitparaloc in procoptions then
begin
b:=ppufile.getbyte;
if b<>sizeof(funcretloc[callerside]) then
internalerror(200411154);
ppufile.getdata(funcretloc[callerside],sizeof(funcretloc[callerside]));
end;
savesize:=sizeof(aint);
has_paraloc_info:=(po_explicitparaloc in procoptions);
end;
procedure tabstractprocdef.ppuwrite(ppufile:tcompilerppufile);
var
oldintfcrc : boolean;
begin
{ released procdef? }
if not assigned(parast) then
exit;
inherited ppuwritedef(ppufile);
ppufile.puttype(rettype);
oldintfcrc:=ppufile.do_interface_crc;
ppufile.do_interface_crc:=false;
{$ifdef i386}
if simplify_ppu then
fpu_used:=0;
ppufile.putbyte(fpu_used);
{$else}
ppufile.putbyte(0);
{$endif}
ppufile.putbyte(ord(proctypeoption));
ppufile.putbyte(ord(proccalloption));
ppufile.putnormalset(procoptions);
ppufile.do_interface_crc:=oldintfcrc;
if (po_explicitparaloc in procoptions) then
begin
{ Make a 'valid' funcretloc for procedures }
ppufile.putbyte(sizeof(funcretloc[callerside]));
ppufile.putdata(funcretloc[callerside],sizeof(funcretloc[callerside]));
end;
end;
function tabstractprocdef.typename_paras(showhidden:boolean) : string;
var
hs,s : string;
hp : TParavarsym;
hpc : tconstsym;
first : boolean;
i : integer;
begin
s:='';
first:=true;
for i:=0 to paras.count-1 do
begin
hp:=tparavarsym(paras[i]);
if not(vo_is_hidden_para in hp.varoptions) or
(showhidden) then
begin
if first then
begin
s:=s+'(';
first:=false;
end
else
s:=s+',';
case hp.varspez of
vs_var :
s:=s+'var';
vs_const :
s:=s+'const';
vs_out :
s:=s+'out';
end;
if assigned(hp.vartype.def.typesym) then
begin
if s<>'(' then
s:=s+' ';
hs:=hp.vartype.def.typesym.realname;
if hs[1]<>'$' then
s:=s+hp.vartype.def.typesym.realname
else
s:=s+hp.vartype.def.gettypename;
end
else
s:=s+hp.vartype.def.gettypename;
{ default value }
if assigned(hp.defaultconstsym) then
begin
hpc:=tconstsym(hp.defaultconstsym);
hs:='';
case hpc.consttyp of
conststring,
constresourcestring :
hs:=strpas(pchar(hpc.value.valueptr));
constreal :
str(pbestreal(hpc.value.valueptr)^,hs);
constpointer :
hs:=tostr(hpc.value.valueordptr);
constord :
begin
if is_boolean(hpc.consttype.def) then
begin
if hpc.value.valueord<>0 then
hs:='TRUE'
else
hs:='FALSE';
end
else
hs:=tostr(hpc.value.valueord);
end;
constnil :
hs:='nil';
constset :
hs:='<set>';
end;
if hs<>'' then
s:=s+'="'+hs+'"';
end;
end;
end;
if not first then
s:=s+')';
if (po_varargs in procoptions) then
s:=s+';VarArgs';
typename_paras:=s;
end;
function tabstractprocdef.is_methodpointer:boolean;
begin
result:=false;
end;
function tabstractprocdef.is_addressonly:boolean;
begin
result:=true;
end;
{***************************************************************************
TPROCDEF
***************************************************************************}
constructor tprocdef.create(level:byte);
begin
inherited create(level);
deftype:=procdef;
_mangledname:=nil;
fileinfo:=aktfilepos;
extnumber:=$ffff;
aliasnames:=tstringlist.create;
funcretsym:=nil;
localst := nil;
defref:=nil;
lastwritten:=nil;
refcount:=0;
if (cs_browser in aktmoduleswitches) and make_ref then
begin
defref:=tref.create(defref,@akttokenpos);
inc(refcount);
end;
lastref:=defref;
forwarddef:=true;
interfacedef:=false;
hasforward:=false;
_class := nil;
import_dll:=nil;
import_name:=nil;
import_nr:=0;
inlininginfo:=nil;
end;
constructor tprocdef.ppuload(ppufile:tcompilerppufile);
var
level : byte;
begin
inherited ppuload(ppufile);
deftype:=procdef;
if po_has_mangledname in procoptions then
_mangledname:=stringdup(ppufile.getstring)
else
_mangledname:=nil;
extnumber:=ppufile.getword;
level:=ppufile.getbyte;
ppufile.getderef(_classderef);
ppufile.getderef(procsymderef);
ppufile.getposinfo(fileinfo);
ppufile.getsmallset(symoptions);
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
ppufile.getderef(libsymderef);
{$endif powerpc}
{ import stuff }
import_dll:=nil;
import_name:=nil;
import_nr:=0;
{ inline stuff }
if (po_has_inlininginfo in procoptions) then
begin
ppufile.getderef(funcretsymderef);
new(inlininginfo);
ppufile.getsmallset(inlininginfo^.flags);
end
else
begin
inlininginfo:=nil;
funcretsym:=nil;
end;
{ load para symtable }
parast:=tparasymtable.create(level);
tparasymtable(parast).ppuload(ppufile);
parast.defowner:=self;
{ load local symtable }
if (po_has_inlininginfo in procoptions) or
((current_module.flags and uf_local_browser)<>0) then
begin
localst:=tlocalsymtable.create(level);
tlocalsymtable(localst).ppuload(ppufile);
localst.defowner:=self;
end
else
localst:=nil;
{ inline stuff }
if (po_has_inlininginfo in procoptions) then
inlininginfo^.code:=ppuloadnodetree(ppufile);
{ default values for no persistent data }
if (cs_link_deffile in aktglobalswitches) and
(tf_need_export in target_info.flags) and
(po_exports in procoptions) then
deffile.AddExport(mangledname);
aliasnames:=tstringlist.create;
forwarddef:=false;
interfacedef:=false;
hasforward:=false;
lastref:=nil;
lastwritten:=nil;
defref:=nil;
refcount:=0;
{ Disable po_has_inlining until the derefimpl is done }
exclude(procoptions,po_has_inlininginfo);
end;
destructor tprocdef.destroy;
begin
if assigned(defref) then
begin
defref.freechain;
defref.free;
end;
aliasnames.free;
if assigned(localst) and (localst.symtabletype<>staticsymtable) then
begin
{$ifdef MEMDEBUG}
memproclocalst.start;
{$endif MEMDEBUG}
localst.free;
{$ifdef MEMDEBUG}
memproclocalst.start;
{$endif MEMDEBUG}
end;
if assigned(inlininginfo) then
begin
{$ifdef MEMDEBUG}
memprocnodetree.start;
{$endif MEMDEBUG}
tnode(inlininginfo^.code).free;
{$ifdef MEMDEBUG}
memprocnodetree.start;
{$endif MEMDEBUG}
dispose(inlininginfo);
end;
stringdispose(import_dll);
stringdispose(import_name);
if (po_msgstr in procoptions) then
strdispose(messageinf.str);
if assigned(_mangledname) then
begin
{$ifdef MEMDEBUG}
memmanglednames.start;
{$endif MEMDEBUG}
stringdispose(_mangledname);
{$ifdef MEMDEBUG}
memmanglednames.stop;
{$endif MEMDEBUG}
end;
inherited destroy;
end;
procedure tprocdef.ppuwrite(ppufile:tcompilerppufile);
var
oldintfcrc : boolean;
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
{ released procdef? }
if not assigned(parast) then
exit;
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
inherited ppuwrite(ppufile);
oldintfcrc:=ppufile.do_interface_crc;
ppufile.do_interface_crc:=false;
ppufile.do_interface_crc:=oldintfcrc;
if po_has_mangledname in procoptions then
ppufile.putstring(_mangledname^);
ppufile.putword(extnumber);
ppufile.putbyte(parast.symtablelevel);
ppufile.putderef(_classderef);
ppufile.putderef(procsymderef);
ppufile.putposinfo(fileinfo);
ppufile.putsmallset(symoptions);
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
ppufile.putderef(libsymderef);
{$endif powerpc}
{ inline stuff }
oldintfcrc:=ppufile.do_crc;
ppufile.do_crc:=false;
if (po_has_inlininginfo in procoptions) then
begin
ppufile.putderef(funcretsymderef);
ppufile.putsmallset(inlininginfo^.flags);
end;
ppufile.do_crc:=oldintfcrc;
{ write this entry }
ppufile.writeentry(ibprocdef);
{ Save the para symtable, this is taken from the interface }
tparasymtable(parast).ppuwrite(ppufile);
{ save localsymtable for inline procedures or when local
browser info is requested, this has no influence on the crc }
if (po_has_inlininginfo in procoptions) or
((current_module.flags and uf_local_browser)<>0) then
begin
{ we must write a localsymtable }
if not assigned(localst) then
insert_localst;
oldintfcrc:=ppufile.do_crc;
ppufile.do_crc:=false;
tlocalsymtable(localst).ppuwrite(ppufile);
ppufile.do_crc:=oldintfcrc;
end;
{ node tree for inlining }
oldintfcrc:=ppufile.do_crc;
ppufile.do_crc:=false;
if (po_has_inlininginfo in procoptions) then
ppuwritenodetree(ppufile,inlininginfo^.code);
ppufile.do_crc:=oldintfcrc;
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocdef.reset;
begin
inherited reset;
procstarttai:=nil;
procendtai:=nil;
end;
procedure tprocdef.insert_localst;
begin
localst:=tlocalsymtable.create(parast.symtablelevel);
localst.defowner:=self;
{ this is used by insert
to check same names in parast and localst }
localst.next:=parast;
end;
function tprocdef.fullprocname(showhidden:boolean):string;
var
s : string;
t : ttoken;
begin
{$ifdef EXTDEBUG}
showhidden:=true;
{$endif EXTDEBUG}
s:='';
if owner.symtabletype=localsymtable then
s:=s+'local ';
if assigned(_class) then
begin
if po_classmethod in procoptions then
s:=s+'class ';
s:=s+_class.objrealname^+'.';
end;
if proctypeoption=potype_operator then
begin
for t:=NOTOKEN to last_overloaded do
if procsym.realname='$'+overloaded_names[t] then
begin
s:='operator '+arraytokeninfo[t].str+typename_paras(showhidden);
break;
end;
end
else
s:=s+procsym.realname+typename_paras(showhidden);
case proctypeoption of
potype_constructor:
s:='constructor '+s;
potype_destructor:
s:='destructor '+s;
else
if assigned(rettype.def) and
not(is_void(rettype.def)) then
s:=s+':'+rettype.def.gettypename;
end;
{ forced calling convention? }
if (po_hascallingconvention in procoptions) then
s:=s+';'+ProcCallOptionStr[proccalloption];
fullprocname:=s;
end;
function tprocdef.is_methodpointer:boolean;
begin
result:=assigned(_class);
end;
function tprocdef.is_addressonly:boolean;
begin
result:=assigned(owner) and
(owner.symtabletype<>objectsymtable);
end;
function tprocdef.is_visible_for_object(currobjdef:tobjectdef):boolean;
begin
is_visible_for_object:=false;
{ private symbols are allowed when we are in the same
module as they are defined }
if (sp_private in symoptions) and
(owner.defowner.owner.symtabletype in [globalsymtable,staticsymtable]) and
not(owner.defowner.owner.iscurrentunit) then
exit;
if (sp_strictprivate in symoptions) then
begin
result:=currobjdef=tobjectdef(owner.defowner);
exit;
end;
if (sp_strictprotected in symoptions) then
begin
result:=assigned(currobjdef) and
currobjdef.is_related(tobjectdef(owner.defowner));
exit;
end;
{ protected symbols are visible in the module that defines them and
also visible to related objects. The related object must be defined
in the current module }
if (sp_protected in symoptions) and
(
(
(owner.defowner.owner.symtabletype in [globalsymtable,staticsymtable]) and
not(owner.defowner.owner.iscurrentunit)
) and
not(
assigned(currobjdef) and
(currobjdef.owner.symtabletype in [globalsymtable,staticsymtable]) and
(currobjdef.owner.iscurrentunit) and
currobjdef.is_related(tobjectdef(owner.defowner))
)
) then
exit;
is_visible_for_object:=true;
end;
function tprocdef.getsymtable(t:tgetsymtable):tsymtable;
begin
case t of
gs_local :
getsymtable:=localst;
gs_para :
getsymtable:=parast;
else
getsymtable:=nil;
end;
end;
procedure tprocdef.load_references(ppufile:tcompilerppufile;locals:boolean);
var
pos : tfileposinfo;
move_last : boolean;
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
move_last:=lastwritten=lastref;
while (not ppufile.endofentry) do
begin
ppufile.getposinfo(pos);
inc(refcount);
lastref:=tref.create(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
assigned(localst) and
locals then
begin
tparasymtable(parast).load_references(ppufile,locals);
tlocalsymtable(localst).load_references(ppufile,locals);
end;
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
Const
local_symtable_index : word = $8001;
function tprocdef.write_references(ppufile:tcompilerppufile;locals:boolean):boolean;
var
ref : tref;
{$ifdef supportbrowser}
pdo : tobjectdef;
{$endif supportbrowser}
move_last : boolean;
d : tderef;
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
d.reset;
move_last:=lastwritten=lastref;
if move_last and
(((current_module.flags and uf_local_browser)=0) or
not locals) then
exit;
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
{ write address of this symbol }
d.build(self);
ppufile.putderef(d);
{ 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
ppufile.putposinfo(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;
ppufile.writeentry(ibdefref);
write_references:=true;
{$ifdef supportbrowser}
if ((current_module.flags and uf_local_browser)<>0) and
assigned(localst) and
locals then
begin
pdo:=_class;
if (owner.symtabletype<>localsymtable) then
while assigned(pdo) do
begin
if pdo.symtable<>aktrecordsymtable then
begin
pdo.symtable.moduleid:=local_symtable_index;
inc(local_symtable_index);
end;
pdo:=pdo.childof;
end;
parast.moduleid:=local_symtable_index;
inc(local_symtable_index);
localst.moduleid:=local_symtable_index;
inc(local_symtable_index);
tstoredsymtable(parast).write_references(ppufile,locals);
tstoredsymtable(localst).write_references(ppufile,locals);
{ 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;
end;
{$endif supportbrowser}
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocdef.buildderef;
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
inherited buildderef;
_classderef.build(_class);
{ procsym that originaly defined this definition, should be in the
same symtable }
procsymderef.build(procsym);
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
libsymderef.build(libsym);
{$endif powerpc}
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocdef.buildderefimpl;
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
{ released procdef? }
if not assigned(parast) then
exit;
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
inherited buildderefimpl;
{ Locals }
if assigned(localst) and
((po_has_inlininginfo in procoptions) or
((current_module.flags and uf_local_browser)<>0)) then
begin
tlocalsymtable(localst).buildderef;
tlocalsymtable(localst).buildderefimpl;
end;
{ inline tree }
if (po_has_inlininginfo in procoptions) then
begin
funcretsymderef.build(funcretsym);
inlininginfo^.code.buildderefimpl;
end;
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocdef.deref;
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
{ released procdef? }
if not assigned(parast) then
exit;
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
inherited deref;
_class:=tobjectdef(_classderef.resolve);
{ procsym that originaly defined this definition, should be in the
same symtable }
procsym:=tprocsym(procsymderef.resolve);
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
libsym:=tsym(libsymderef.resolve);
{$endif powerpc}
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocdef.derefimpl;
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=localst;
{ Enable has_inlininginfo when the inlininginfo
structure is available. The has_inlininginfo was disabled
after the load, since the data was invalid }
if assigned(inlininginfo) then
include(procoptions,po_has_inlininginfo);
{ Locals }
if assigned(localst) then
begin
tlocalsymtable(localst).deref;
tlocalsymtable(localst).derefimpl;
end;
{ Inline }
if (po_has_inlininginfo in procoptions) then
begin
inlininginfo^.code.derefimpl;
{ funcretsym, this is always located in the localst }
funcretsym:=tsym(funcretsymderef.resolve);
end
else
begin
{ safety }
funcretsym:=nil;
end;
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
function tprocdef.gettypename : string;
begin
gettypename := FullProcName(false);
end;
function tprocdef.mangledname : string;
var
hp : TParavarsym;
hs : string;
crc : dword;
newlen,
oldlen,
i : integer;
begin
if assigned(_mangledname) then
begin
{$ifdef compress}
mangledname:=minilzw_decode(_mangledname^);
{$else}
mangledname:=_mangledname^;
{$endif}
exit;
end;
{ we need to use the symtable where the procsym is inserted,
because that is visible to the world }
mangledname:=make_mangledname('',procsym.owner,procsym.name);
oldlen:=length(mangledname);
{ add parameter types }
for i:=0 to paras.count-1 do
begin
hp:=tparavarsym(paras[i]);
if not(vo_is_hidden_para in hp.varoptions) then
mangledname:=mangledname+'$'+hp.vartype.def.mangledparaname;
end;
{ add resulttype, add $$ as separator to make it unique from a
parameter separator }
if not is_void(rettype.def) then
mangledname:=mangledname+'$$'+rettype.def.mangledparaname;
newlen:=length(mangledname);
{ Replace with CRC if the parameter line is very long }
if (newlen-oldlen>12) and
((newlen>128) or (newlen-oldlen>64)) then
begin
crc:=$ffffffff;
for i:=0 to paras.count-1 do
begin
hp:=tparavarsym(paras[i]);
if not(vo_is_hidden_para in hp.varoptions) then
begin
hs:=hp.vartype.def.mangledparaname;
crc:=UpdateCrc32(crc,hs[1],length(hs));
end;
end;
hs:=hp.vartype.def.mangledparaname;
crc:=UpdateCrc32(crc,hs[1],length(hs));
mangledname:=Copy(mangledname,1,oldlen)+'$crc'+hexstr(crc,8);
end;
{$ifdef compress}
_mangledname:=stringdup(minilzw_encode(mangledname));
{$else}
_mangledname:=stringdup(mangledname);
{$endif}
end;
function tprocdef.cplusplusmangledname : string;
function getcppparaname(p : tdef) : string;
const
ordtype2str : array[tbasetype] of string[2] = (
'',
'Uc','Us','Ui','Us',
'Sc','s','i','x',
'b','b','b',
'c','w','x');
var
s : string;
begin
case p.deftype of
orddef:
s:=ordtype2str[torddef(p).typ];
pointerdef:
s:='P'+getcppparaname(tpointerdef(p).pointertype.def);
else
internalerror(2103001);
end;
getcppparaname:=s;
end;
var
s,s2 : string;
hp : TParavarsym;
i : integer;
begin
s := procsym.realname;
if procsym.owner.symtabletype=objectsymtable then
begin
s2:=upper(tobjectdef(procsym.owner.defowner).typesym.realname);
case proctypeoption of
potype_destructor:
s:='_$_'+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 }
if maxparacount>0 then
begin
for i:=0 to paras.count-1 do
begin
hp:=tparavarsym(paras[i]);
s2:=getcppparaname(hp.vartype.def);
if hp.varspez in [vs_var,vs_out] then
s2:='R'+s2;
s:=s+s2;
end;
end
else
s:=s+'v';
cplusplusmangledname:=s;
end;
procedure tprocdef.setmangledname(const s : string);
begin
{ This is not allowed anymore, the forward declaration
already needs to create the correct mangledname, no changes
afterwards are allowed (PFV) }
if assigned(_mangledname) then
internalerror(200411171);
{$ifdef compress}
_mangledname:=stringdup(minilzw_encode(s));
{$else}
_mangledname:=stringdup(s);
{$endif}
include(procoptions,po_has_mangledname);
end;
{***************************************************************************
TPROCVARDEF
***************************************************************************}
constructor tprocvardef.create(level:byte);
begin
inherited create(level);
deftype:=procvardef;
end;
constructor tprocvardef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(ppufile);
deftype:=procvardef;
{ load para symtable }
parast:=tparasymtable.create(unknown_level);
tparasymtable(parast).ppuload(ppufile);
parast.defowner:=self;
end;
function tprocvardef.getcopy : tstoreddef;
begin
result:=self;
(*
{ saves a definition to the return type }
rettype : ttype;
parast : tsymtable;
paras : tparalist;
proctypeoption : tproctypeoption;
proccalloption : tproccalloption;
procoptions : tprocoptions;
requiredargarea : aint;
{ number of user visibile parameters }
maxparacount,
minparacount : byte;
{$ifdef i386}
fpu_used : longint; { how many stack fpu must be empty }
{$endif i386}
funcretloc : array[tcallercallee] of TLocation;
has_paraloc_info : boolean; { paraloc info is available }
tprocvardef = class(tabstractprocdef)
constructor create(level:byte);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
*)
end;
procedure tprocvardef.ppuwrite(ppufile:tcompilerppufile);
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=nil;
{ here we cannot get a real good value so just give something }
{ plausible (PM) }
{ a more secure way would be
to allways store in a temp }
{$ifdef i386}
if is_fpu(rettype.def) then
fpu_used:={2}maxfpuregs
else
fpu_used:=0;
{$endif i386}
inherited ppuwrite(ppufile);
{ Write this entry }
ppufile.writeentry(ibprocvardef);
{ Save the para symtable, this is taken from the interface }
tparasymtable(parast).ppuwrite(ppufile);
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocvardef.buildderef;
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=nil;
inherited buildderef;
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
procedure tprocvardef.deref;
var
oldparasymtable,
oldlocalsymtable : tsymtable;
begin
oldparasymtable:=aktparasymtable;
oldlocalsymtable:=aktlocalsymtable;
aktparasymtable:=parast;
aktlocalsymtable:=nil;
inherited deref;
aktparasymtable:=oldparasymtable;
aktlocalsymtable:=oldlocalsymtable;
end;
function tprocvardef.getsymtable(t:tgetsymtable):tsymtable;
begin
case t of
gs_para :
getsymtable:=parast;
else
getsymtable:=nil;
end;
end;
function tprocvardef.size : aint;
begin
if (po_methodpointer in procoptions) and
not(po_addressonly in procoptions) then
size:=2*sizeof(aint)
else
size:=sizeof(aint);
end;
function tprocvardef.is_methodpointer:boolean;
begin
result:=(po_methodpointer in procoptions);
end;
function tprocvardef.is_addressonly:boolean;
begin
result:=not(po_methodpointer in procoptions) or
(po_addressonly in procoptions);
end;
function tprocvardef.getmangledparaname:string;
begin
result:='procvar';
end;
procedure tprocvardef.write_rtti_data(rt:trttitype);
procedure write_para(parasym:tparavarsym);
var
paraspec : byte;
begin
{ only store user visible parameters }
if not(vo_is_hidden_para in parasym.varoptions) then
begin
case parasym.varspez of
vs_value: paraspec := 0;
vs_const: paraspec := pfConst;
vs_var : paraspec := pfVar;
vs_out : paraspec := pfOut;
end;
{ write flags for current parameter }
asmlist[al_rtti].concat(Tai_const.Create_8bit(paraspec));
{ write name of current parameter }
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(parasym.realname)));
asmlist[al_rtti].concat(Tai_string.Create(parasym.realname));
{ write name of type of current parameter }
tstoreddef(parasym.vartype.def).write_rtti_name;
end;
end;
var
methodkind : byte;
i : integer;
begin
if po_methodpointer in procoptions then
begin
{ write method id and name }
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkmethod));
write_rtti_name;
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
{ write kind of method (can only be function or procedure)}
if rettype.def = voidtype.def then
methodkind := mkProcedure
else
methodkind := mkFunction;
asmlist[al_rtti].concat(Tai_const.Create_8bit(methodkind));
{ get # of parameters }
asmlist[al_rtti].concat(Tai_const.Create_8bit(maxparacount));
{ write parameter info. The parameters must be written in reverse order
if this method uses right to left parameter pushing! }
if proccalloption in pushleftright_pocalls then
begin
for i:=0 to paras.count-1 do
write_para(tparavarsym(paras[i]));
end
else
begin
for i:=paras.count-1 downto 0 do
write_para(tparavarsym(paras[i]));
end;
{ write name of result type }
tstoreddef(rettype.def).write_rtti_name;
end
else
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkprocvar));
write_rtti_name;
end;
end;
function tprocvardef.is_publishable : boolean;
begin
is_publishable:=(po_methodpointer in procoptions);
end;
function tprocvardef.gettypename : string;
var
s: string;
showhidden : boolean;
begin
{$ifdef EXTDEBUG}
showhidden:=true;
{$else EXTDEBUG}
showhidden:=false;
{$endif EXTDEBUG}
s:='<';
if po_classmethod in procoptions then
s := s+'class method type of'
else
if po_addressonly in procoptions then
s := s+'address of'
else
s := s+'procedure variable type of';
if po_local in procoptions then
s := s+' local';
if assigned(rettype.def) and
(rettype.def<>voidtype.def) then
s:=s+' function'+typename_paras(showhidden)+':'+rettype.def.gettypename
else
s:=s+' procedure'+typename_paras(showhidden);
if po_methodpointer in procoptions then
s := s+' of object';
gettypename := s+';'+ProcCallOptionStr[proccalloption]+'>';
end;
{***************************************************************************
TOBJECTDEF
***************************************************************************}
constructor tobjectdef.create(ot : tobjectdeftype;const n : string;c : tobjectdef);
begin
inherited create;
objecttype:=ot;
deftype:=objectdef;
objectoptions:=[];
childof:=nil;
symtable:=tobjectsymtable.create(n,aktpackrecords);
{ create space for vmt !! }
vmt_offset:=0;
symtable.defowner:=self;
lastvtableindex:=0;
set_parent(c);
objname:=stringdup(upper(n));
objrealname:=stringdup(n);
if objecttype in [odt_interfacecorba,odt_interfacecom] then
prepareguid;
{ setup implemented interfaces }
if objecttype in [odt_class,odt_interfacecorba] then
implementedinterfaces:=timplementedinterfaces.create
else
implementedinterfaces:=nil;
writing_class_record_stab:=false;
end;
constructor tobjectdef.ppuload(ppufile:tcompilerppufile);
var
i,implintfcount: longint;
d : tderef;
begin
inherited ppuloaddef(ppufile);
deftype:=objectdef;
objecttype:=tobjectdeftype(ppufile.getbyte);
objrealname:=stringdup(ppufile.getstring);
objname:=stringdup(upper(objrealname^));
symtable:=tobjectsymtable.create(objrealname^,0);
tobjectsymtable(symtable).datasize:=ppufile.getaint;
tobjectsymtable(symtable).fieldalignment:=ppufile.getbyte;
tobjectsymtable(symtable).recordalignment:=ppufile.getbyte;
vmt_offset:=ppufile.getlongint;
ppufile.getderef(childofderef);
ppufile.getsmallset(objectoptions);
{ load guid }
iidstr:=nil;
if objecttype in [odt_interfacecom,odt_interfacecorba] then
begin
new(iidguid);
ppufile.getguid(iidguid^);
iidstr:=stringdup(ppufile.getstring);
lastvtableindex:=ppufile.getlongint;
end;
{ load implemented interfaces }
if objecttype in [odt_class,odt_interfacecorba] then
begin
implementedinterfaces:=timplementedinterfaces.create;
implintfcount:=ppufile.getlongint;
for i:=1 to implintfcount do
begin
ppufile.getderef(d);
implementedinterfaces.addintf_deref(d,ppufile.getlongint);
end;
end
else
implementedinterfaces:=nil;
tobjectsymtable(symtable).ppuload(ppufile);
symtable.defowner:=self;
{ handles the predefined class tobject }
{ the last TOBJECT which is loaded gets }
{ it ! }
if (childof=nil) and
(objecttype=odt_class) and
(objname^='TOBJECT') then
class_tobject:=self;
if (childof=nil) and
(objecttype=odt_interfacecom) and
(objname^='IUNKNOWN') then
interface_iunknown:=self;
writing_class_record_stab:=false;
end;
destructor tobjectdef.destroy;
begin
if assigned(symtable) then
symtable.free;
stringdispose(objname);
stringdispose(objrealname);
if assigned(iidstr) then
stringdispose(iidstr);
if assigned(implementedinterfaces) then
implementedinterfaces.free;
if assigned(iidguid) then
dispose(iidguid);
inherited destroy;
end;
function tobjectdef.getcopy : tstoreddef;
begin
result:=inherited getcopy;
(*
result:=tobjectdef.create(objecttype,objname^,childof);
childofderef : tderef;
objname,
objrealname : pstring;
objectoptions : tobjectoptions;
{ to be able to have a variable vmt position }
{ and no vmt field for objects without virtuals }
vmt_offset : longint;
writing_class_record_stab : boolean;
objecttype : tobjectdeftype;
iidguid: pguid;
iidstr: pstring;
lastvtableindex: longint;
{ store implemented interfaces defs and name mappings }
implementedinterfaces: timplementedinterfaces;
*)
end;
procedure tobjectdef.ppuwrite(ppufile:tcompilerppufile);
var
implintfcount : longint;
i : longint;
begin
inherited ppuwritedef(ppufile);
ppufile.putbyte(byte(objecttype));
ppufile.putstring(objrealname^);
ppufile.putaint(tobjectsymtable(symtable).datasize);
ppufile.putbyte(tobjectsymtable(symtable).fieldalignment);
ppufile.putbyte(tobjectsymtable(symtable).recordalignment);
ppufile.putlongint(vmt_offset);
ppufile.putderef(childofderef);
ppufile.putsmallset(objectoptions);
if objecttype in [odt_interfacecom,odt_interfacecorba] then
begin
ppufile.putguid(iidguid^);
ppufile.putstring(iidstr^);
ppufile.putlongint(lastvtableindex);
end;
if objecttype in [odt_class,odt_interfacecorba] then
begin
implintfcount:=implementedinterfaces.count;
ppufile.putlongint(implintfcount);
for i:=1 to implintfcount do
begin
ppufile.putderef(implementedinterfaces.interfacesderef(i));
ppufile.putlongint(implementedinterfaces.ioffsets(i));
end;
end;
ppufile.writeentry(ibobjectdef);
tobjectsymtable(symtable).ppuwrite(ppufile);
end;
function tobjectdef.gettypename:string;
begin
gettypename:=typename;
end;
procedure tobjectdef.buildderef;
var
oldrecsyms : tsymtable;
begin
inherited buildderef;
childofderef.build(childof);
oldrecsyms:=aktrecordsymtable;
aktrecordsymtable:=symtable;
tstoredsymtable(symtable).buildderef;
aktrecordsymtable:=oldrecsyms;
if objecttype in [odt_class,odt_interfacecorba] then
implementedinterfaces.buildderef;
end;
procedure tobjectdef.deref;
var
oldrecsyms : tsymtable;
begin
inherited deref;
childof:=tobjectdef(childofderef.resolve);
oldrecsyms:=aktrecordsymtable;
aktrecordsymtable:=symtable;
tstoredsymtable(symtable).deref;
aktrecordsymtable:=oldrecsyms;
if objecttype in [odt_class,odt_interfacecorba] then
implementedinterfaces.deref;
end;
function tobjectdef.getparentdef:tdef;
begin
{$warning TODO Remove getparentdef hack}
{ With 2 forward declared classes with the child class before the
parent class the child class is written earlier to the ppu. Leaving it
possible to have a reference to the parent class for property overriding,
but the parent class still has the childof not resolved yet (PFV) }
if childof=nil then
childof:=tobjectdef(childofderef.resolve);
result:=childof;
end;
procedure tobjectdef.prepareguid;
begin
{ set up guid }
if not assigned(iidguid) then
begin
new(iidguid);
fillchar(iidguid^,sizeof(iidguid^),0); { default null guid }
end;
{ setup iidstring }
if not assigned(iidstr) then
iidstr:=stringdup(''); { default is empty string }
end;
procedure tobjectdef.set_parent( c : tobjectdef);
begin
{ nothing to do if the parent was not forward !}
if assigned(childof) then
exit;
childof:=c;
{ some options are inherited !! }
if assigned(c) then
begin
{ only important for classes }
lastvtableindex:=c.lastvtableindex;
objectoptions:=objectoptions+(c.objectoptions*
inherited_objectoptions);
if not (objecttype in [odt_interfacecom,odt_interfacecorba]) then
begin
{ add the data of the anchestor class }
inc(tobjectsymtable(symtable).datasize,tobjectsymtable(c.symtable).datasize);
if (oo_has_vmt in objectoptions) and
(oo_has_vmt in c.objectoptions) then
dec(tobjectsymtable(symtable).datasize,sizeof(aint));
{ if parent has a vmt field then
the offset is the same for the child PM }
if (oo_has_vmt in c.objectoptions) or is_class(self) then
begin
vmt_offset:=c.vmt_offset;
include(objectoptions,oo_has_vmt);
end;
end;
end;
end;
procedure tobjectdef.insertvmt;
begin
if objecttype in [odt_interfacecom,odt_interfacecorba] then
exit;
if (oo_has_vmt in objectoptions) then
internalerror(12345)
else
begin
tobjectsymtable(symtable).datasize:=align(tobjectsymtable(symtable).datasize,
tobjectsymtable(symtable).fieldalignment);
{$ifdef cpurequiresproperalignment}
tobjectsymtable(symtable).datasize:=align(tobjectsymtable(symtable).datasize,sizeof(aint));
{$endif cpurequiresproperalignment}
vmt_offset:=tobjectsymtable(symtable).datasize;
inc(tobjectsymtable(symtable).datasize,sizeof(aint));
include(objectoptions,oo_has_vmt);
end;
end;
procedure tobjectdef.check_forwards;
begin
if not(objecttype in [odt_interfacecom,odt_interfacecorba]) then
tstoredsymtable(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,objrealname^);
exclude(objectoptions,oo_is_forward);
end;
end;
{ true, if self inherits from d (or if they are equal) }
function tobjectdef.is_related(d : tdef) : boolean;
var
hp : tobjectdef;
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;
(* procedure tobjectdef._searchdestructor(sym : tnamedindexitem;arg:pointer);
var
p : pprocdeflist;
begin
{ if we found already a destructor, then we exit }
if assigned(sd) then
exit;
if tsym(sym).typ=procsym then
begin
p:=tprocsym(sym).defs;
while assigned(p) do
begin
if p^.def.proctypeoption=potype_destructor then
begin
sd:=p^.def;
exit;
end;
p:=p^.next;
end;
end;
end;*)
procedure _searchdestructor(sym:Tnamedindexitem;sd:pointer);
begin
{ if we found already a destructor, then we exit }
if (ppointer(sd)^=nil) and
(Tsym(sym).typ=procsym) then
ppointer(sd)^:=Tprocsym(sym).search_procdef_bytype(potype_destructor);
end;
function tobjectdef.searchdestructor : tprocdef;
var
o : tobjectdef;
sd : tprocdef;
begin
searchdestructor:=nil;
o:=self;
sd:=nil;
while assigned(o) do
begin
o.symtable.foreach_static(@_searchdestructor,@sd);
if assigned(sd) then
begin
searchdestructor:=sd;
exit;
end;
o:=o.childof;
end;
end;
function tobjectdef.size : aint;
begin
if objecttype in [odt_class,odt_interfacecom,odt_interfacecorba] then
result:=sizeof(aint)
else
result:=tobjectsymtable(symtable).datasize;
end;
function tobjectdef.alignment:longint;
begin
if objecttype in [odt_class,odt_interfacecom,odt_interfacecorba] then
alignment:=sizeof(aint)
else
alignment:=tobjectsymtable(symtable).recordalignment;
end;
function tobjectdef.vmtmethodoffset(index:longint):longint;
begin
{ for offset of methods for classes, see rtl/inc/objpash.inc }
case objecttype of
odt_class:
{ the +2*sizeof(Aint) is size and -size }
vmtmethodoffset:=(index+10)*sizeof(aint)+2*sizeof(AInt);
odt_interfacecom,odt_interfacecorba:
vmtmethodoffset:=index*sizeof(aint);
else
{$ifdef WITHDMT}
vmtmethodoffset:=(index+4)*sizeof(aint);
{$else WITHDMT}
vmtmethodoffset:=(index+3)*sizeof(aint);
{$endif WITHDMT}
end;
end;
function tobjectdef.vmt_mangledname : string;
begin
if not(oo_has_vmt in objectoptions) then
Message1(parser_n_object_has_no_vmt,objrealname^);
vmt_mangledname:=make_mangledname('VMT',owner,objname^);
end;
function tobjectdef.rtti_name : string;
begin
rtti_name:=make_mangledname('RTTI',owner,objname^);
end;
function tobjectdef.needs_inittable : boolean;
begin
case objecttype of
odt_class :
needs_inittable:=false;
odt_interfacecom:
needs_inittable:=true;
odt_interfacecorba:
needs_inittable:=is_related(interface_iunknown);
odt_object:
needs_inittable:=tobjectsymtable(symtable).needs_init_final;
else
internalerror(200108267);
end;
end;
function tobjectdef.members_need_inittable : boolean;
begin
members_need_inittable:=tobjectsymtable(symtable).needs_init_final;
end;
procedure tobjectdef.count_published_properties(sym:tnamedindexitem;arg:pointer);
begin
if needs_prop_entry(tsym(sym)) and
(tsym(sym).typ<>fieldvarsym) then
inc(count);
end;
procedure tobjectdef.write_property_info(sym : tnamedindexitem;arg:pointer);
var
proctypesinfo : byte;
procedure writeproc(proc : tsymlist; shiftvalue : byte);
var
typvalue : byte;
hp : psymlistitem;
address : longint;
def : tdef;
begin
if not(assigned(proc) and assigned(proc.firstsym)) then
begin
asmlist[al_rtti].concat(Tai_const.create(ait_const_ptr,1));
typvalue:=3;
end
else if proc.firstsym^.sym.typ=fieldvarsym then
begin
address:=0;
hp:=proc.firstsym;
def:=nil;
while assigned(hp) do
begin
case hp^.sltype of
sl_load :
begin
def:=tfieldvarsym(hp^.sym).vartype.def;
inc(address,tfieldvarsym(hp^.sym).fieldoffset);
end;
sl_subscript :
begin
if not(assigned(def) and (def.deftype=recorddef)) then
internalerror(200402171);
inc(address,tfieldvarsym(hp^.sym).fieldoffset);
def:=tfieldvarsym(hp^.sym).vartype.def;
end;
sl_vec :
begin
if not(assigned(def) and (def.deftype=arraydef)) then
internalerror(200402172);
def:=tarraydef(def).elementtype.def;
inc(address,def.size*hp^.value);
end;
end;
hp:=hp^.next;
end;
asmlist[al_rtti].concat(Tai_const.create(ait_const_ptr,address));
typvalue:=0;
end
else
begin
{ When there was an error then procdef is not assigned }
if not assigned(proc.procdef) then
exit;
if not(po_virtualmethod in tprocdef(proc.procdef).procoptions) then
begin
asmlist[al_rtti].concat(Tai_const.createname(tprocdef(proc.procdef).mangledname,AT_FUNCTION,0));
typvalue:=1;
end
else
begin
{ virtual method, write vmt offset }
asmlist[al_rtti].concat(Tai_const.create(ait_const_ptr,
tprocdef(proc.procdef)._class.vmtmethodoffset(tprocdef(proc.procdef).extnumber)));
typvalue:=2;
end;
end;
proctypesinfo:=proctypesinfo or (typvalue shl shiftvalue);
end;
begin
if needs_prop_entry(tsym(sym)) then
case tsym(sym).typ of
fieldvarsym:
begin
{$ifdef dummy}
if not(tvarsym(sym).vartype.def.deftype=objectdef) or
not(tobjectdef(tvarsym(sym).vartype.def).is_class) then
internalerror(1509992);
{ access to implicit class property as field }
proctypesinfo:=(0 shl 0) or (0 shl 2) or (0 shl 4);
asmlist[al_rtti].concat(Tai_const_symbol.Createname(tvarsym(sym.vartype.def.get_rtti_label),AT_DATA,0));
asmlist[al_rtti].concat(Tai_const.create(ait_const_ptr,tvarsym(sym.address)));
asmlist[al_rtti].concat(Tai_const.create(ait_const_ptr,tvarsym(sym.address)));
{ by default stored }
asmlist[al_rtti].concat(Tai_const.Create_32bit(1));
{ index as well as ... }
asmlist[al_rtti].concat(Tai_const.Create_32bit(0));
{ default value are zero }
asmlist[al_rtti].concat(Tai_const.Create_32bit(0));
asmlist[al_rtti].concat(Tai_const.Create_16bit(count));
inc(count);
asmlist[al_rtti].concat(Tai_const.Create_8bit(proctypesinfo));
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(tvarsym(sym.realname))));
asmlist[al_rtti].concat(Tai_string.Create(tvarsym(sym.realname)));
{$endif dummy}
end;
propertysym:
begin
if ppo_indexed in tpropertysym(sym).propoptions then
proctypesinfo:=$40
else
proctypesinfo:=0;
asmlist[al_rtti].concat(Tai_const.Create_sym(tstoreddef(tpropertysym(sym).proptype.def).get_rtti_label(fullrtti)));
writeproc(tpropertysym(sym).readaccess,0);
writeproc(tpropertysym(sym).writeaccess,2);
{ isn't it stored ? }
if not(ppo_stored in tpropertysym(sym).propoptions) then
begin
asmlist[al_rtti].concat(Tai_const.create_sym(nil));
proctypesinfo:=proctypesinfo or (3 shl 4);
end
else
writeproc(tpropertysym(sym).storedaccess,4);
asmlist[al_rtti].concat(Tai_const.Create_32bit(tpropertysym(sym).index));
asmlist[al_rtti].concat(Tai_const.Create_32bit(tpropertysym(sym).default));
asmlist[al_rtti].concat(Tai_const.Create_16bit(count));
inc(count);
asmlist[al_rtti].concat(Tai_const.Create_8bit(proctypesinfo));
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(tpropertysym(sym).realname)));
asmlist[al_rtti].concat(Tai_string.Create(tpropertysym(sym).realname));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
end;
else internalerror(1509992);
end;
end;
procedure tobjectdef.generate_published_child_rtti(sym : tnamedindexitem;arg:pointer);
begin
if needs_prop_entry(tsym(sym)) then
begin
case tsym(sym).typ of
propertysym:
tstoreddef(tpropertysym(sym).proptype.def).get_rtti_label(fullrtti);
fieldvarsym:
tstoreddef(tfieldvarsym(sym).vartype.def).get_rtti_label(fullrtti);
else
internalerror(1509991);
end;
end;
end;
procedure tobjectdef.write_child_rtti_data(rt:trttitype);
begin
FRTTIType:=rt;
case rt of
initrtti :
symtable.foreach(@generate_field_rtti,nil);
fullrtti :
symtable.foreach(@generate_published_child_rtti,nil);
else
internalerror(200108301);
end;
end;
type
tclasslistitem = class(TLinkedListItem)
index : longint;
p : tobjectdef;
end;
var
classtablelist : tlinkedlist;
tablecount : longint;
function searchclasstablelist(p : tobjectdef) : tclasslistitem;
var
hp : tclasslistitem;
begin
hp:=tclasslistitem(classtablelist.first);
while assigned(hp) do
if hp.p=p then
begin
searchclasstablelist:=hp;
exit;
end
else
hp:=tclasslistitem(hp.next);
searchclasstablelist:=nil;
end;
procedure tobjectdef.count_published_fields(sym:tnamedindexitem;arg:pointer);
var
hp : tclasslistitem;
begin
if needs_prop_entry(tsym(sym)) and
(tsym(sym).typ=fieldvarsym) then
begin
if tfieldvarsym(sym).vartype.def.deftype<>objectdef then
internalerror(0206001);
hp:=searchclasstablelist(tobjectdef(tfieldvarsym(sym).vartype.def));
if not(assigned(hp)) then
begin
hp:=tclasslistitem.create;
hp.p:=tobjectdef(tfieldvarsym(sym).vartype.def);
hp.index:=tablecount;
classtablelist.concat(hp);
inc(tablecount);
end;
inc(count);
end;
end;
procedure tobjectdef.writefields(sym:tnamedindexitem;arg:pointer);
var
hp : tclasslistitem;
begin
if needs_prop_entry(tsym(sym)) and
(tsym(sym).typ=fieldvarsym) then
begin
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(AInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_aint(tfieldvarsym(sym).fieldoffset));
hp:=searchclasstablelist(tobjectdef(tfieldvarsym(sym).vartype.def));
if not(assigned(hp)) then
internalerror(0206002);
asmlist[al_rtti].concat(Tai_const.Create_16bit(hp.index));
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(tfieldvarsym(sym).realname)));
asmlist[al_rtti].concat(Tai_string.Create(tfieldvarsym(sym).realname));
end;
end;
function tobjectdef.generate_field_table : tasmlabel;
var
fieldtable,
classtable : tasmlabel;
hp : tclasslistitem;
begin
classtablelist:=TLinkedList.Create;
objectlibrary.getdatalabel(fieldtable);
objectlibrary.getdatalabel(classtable);
count:=0;
tablecount:=0;
maybe_new_object_file(asmlist[al_rtti]);
new_section(asmlist[al_rtti],sec_rodata,classtable.name,const_align(sizeof(aint)));
{ fields }
symtable.foreach({$ifdef FPC}@{$endif}count_published_fields,nil);
asmlist[al_rtti].concat(Tai_label.Create(fieldtable));
asmlist[al_rtti].concat(Tai_const.Create_16bit(count));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_sym(classtable));
symtable.foreach({$ifdef FPC}@{$endif}writefields,nil);
{ generate the class table }
asmlist[al_rtti].concat(tai_align.create(const_align(sizeof(aint))));
asmlist[al_rtti].concat(Tai_label.Create(classtable));
asmlist[al_rtti].concat(Tai_const.Create_16bit(tablecount));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
hp:=tclasslistitem(classtablelist.first);
while assigned(hp) do
begin
asmlist[al_rtti].concat(Tai_const.Createname(tobjectdef(hp.p).vmt_mangledname,AT_DATA,0));
hp:=tclasslistitem(hp.next);
end;
generate_field_table:=fieldtable;
classtablelist.free;
end;
function tobjectdef.next_free_name_index : longint;
var
i : longint;
begin
if assigned(childof) and (oo_can_have_published in childof.objectoptions) then
i:=childof.next_free_name_index
else
i:=0;
count:=0;
symtable.foreach(@count_published_properties,nil);
next_free_name_index:=i+count;
end;
procedure tobjectdef.write_rtti_data(rt:trttitype);
var
i : longint;
begin
case objecttype of
odt_class:
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkclass));
odt_object:
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkobject));
odt_interfacecom:
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkinterface));
odt_interfacecorba:
asmlist[al_rtti].concat(Tai_const.Create_8bit(tkinterfaceCorba));
else
exit;
end;
{ generate the name }
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(objrealname^)));
asmlist[al_rtti].concat(Tai_string.Create(objrealname^));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
case rt of
initrtti :
begin
asmlist[al_rtti].concat(Tai_const.Create_32bit(size));
if objecttype in [odt_class,odt_object] then
begin
count:=0;
FRTTIType:=rt;
symtable.foreach(@count_field_rtti,nil);
asmlist[al_rtti].concat(Tai_const.Create_32bit(count));
symtable.foreach(@write_field_rtti,nil);
end;
end;
fullrtti :
begin
if not(objecttype in [odt_interfacecom,odt_interfacecorba]) then
begin
if (oo_has_vmt in objectoptions) then
asmlist[al_rtti].concat(Tai_const.Createname(vmt_mangledname,AT_DATA,0))
else
asmlist[al_rtti].concat(Tai_const.create_sym(nil));
end;
{ write parent typeinfo }
if assigned(childof) and ((oo_can_have_published in childof.objectoptions) or
(objecttype in [odt_interfacecom,odt_interfacecorba])) then
asmlist[al_rtti].concat(Tai_const.Create_sym(childof.get_rtti_label(fullrtti)))
else
asmlist[al_rtti].concat(Tai_const.create_sym(nil));
if objecttype in [odt_object,odt_class] then
begin
{ count total number of properties }
if assigned(childof) and (oo_can_have_published in childof.objectoptions) then
count:=childof.next_free_name_index
else
count:=0;
{ write it }
symtable.foreach(@count_published_properties,nil);
asmlist[al_rtti].concat(Tai_const.Create_16bit(count));
end
else
{ interface: write flags, iid and iidstr }
begin
asmlist[al_rtti].concat(Tai_const.Create_32bit(
{ ugly, but working }
longint([
TCompilerIntfFlag(ord(ifHasGuid)*ord(assigned(iidguid))),
TCompilerIntfFlag(ord(ifHasStrGUID)*ord(assigned(iidstr)))
])
{
ifDispInterface,
ifDispatch, }
));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_const.Create_32bit(longint(iidguid^.D1)));
asmlist[al_rtti].concat(Tai_const.Create_16bit(iidguid^.D2));
asmlist[al_rtti].concat(Tai_const.Create_16bit(iidguid^.D3));
for i:=Low(iidguid^.D4) to High(iidguid^.D4) do
asmlist[al_rtti].concat(Tai_const.Create_8bit(iidguid^.D4[i]));
end;
{ write unit name }
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(current_module.realmodulename^)));
asmlist[al_rtti].concat(Tai_string.Create(current_module.realmodulename^));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
{ write iidstr }
if objecttype in [odt_interfacecom,odt_interfacecorba] then
begin
if assigned(iidstr) then
begin
asmlist[al_rtti].concat(Tai_const.Create_8bit(length(iidstr^)));
asmlist[al_rtti].concat(Tai_string.Create(iidstr^));
end
else
asmlist[al_rtti].concat(Tai_const.Create_8bit(0));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
end;
if objecttype in [odt_object,odt_class] then
begin
{ write published properties count }
count:=0;
symtable.foreach(@count_published_properties,nil);
asmlist[al_rtti].concat(Tai_const.Create_16bit(count));
{$ifdef cpurequiresproperalignment}
asmlist[al_rtti].concat(Tai_align.Create(sizeof(TConstPtrUInt)));
{$endif cpurequiresproperalignment}
end;
{ 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(@write_property_info,nil);
end;
end;
end;
function tobjectdef.is_publishable : boolean;
begin
is_publishable:=objecttype in [odt_class,odt_interfacecom,odt_interfacecorba];
end;
{****************************************************************************
TIMPLEMENTEDINTERFACES
****************************************************************************}
type
tnamemap = class(TNamedIndexItem)
newname: pstring;
constructor create(const aname, anewname: string);
destructor destroy; override;
end;
constructor tnamemap.create(const aname, anewname: string);
begin
inherited createname(aname);
newname:=stringdup(anewname);
end;
destructor tnamemap.destroy;
begin
stringdispose(newname);
inherited destroy;
end;
type
tprocdefstore = class(TNamedIndexItem)
procdef: tprocdef;
constructor create(aprocdef: tprocdef);
end;
constructor tprocdefstore.create(aprocdef: tprocdef);
begin
inherited create;
procdef:=aprocdef;
end;
constructor timplintfentry.create(aintf: tobjectdef);
begin
inherited create;
intf:=aintf;
ioffset:=-1;
namemappings:=nil;
procdefs:=nil;
end;
constructor timplintfentry.create_deref(const d:tderef);
begin
inherited create;
intf:=nil;
intfderef:=d;
ioffset:=-1;
namemappings:=nil;
procdefs:=nil;
end;
destructor timplintfentry.destroy;
begin
if assigned(namemappings) then
namemappings.free;
if assigned(procdefs) then
procdefs.free;
inherited destroy;
end;
constructor timplementedinterfaces.create;
begin
finterfaces:=tindexarray.create(1);
end;
destructor timplementedinterfaces.destroy;
begin
finterfaces.destroy;
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): tobjectdef;
begin
checkindex(intfindex);
interfaces:=timplintfentry(finterfaces.search(intfindex)).intf;
end;
function timplementedinterfaces.interfacesderef(intfindex: longint): tderef;
begin
checkindex(intfindex);
interfacesderef:=timplintfentry(finterfaces.search(intfindex)).intfderef;
end;
function timplementedinterfaces.ioffsets(intfindex: longint): longint;
begin
checkindex(intfindex);
ioffsets:=timplintfentry(finterfaces.search(intfindex)).ioffset;
end;
procedure timplementedinterfaces.setioffsets(intfindex,iofs:longint);
begin
checkindex(intfindex);
timplintfentry(finterfaces.search(intfindex)).ioffset:=iofs;
end;
function timplementedinterfaces.implindex(intfindex:longint):longint;
begin
checkindex(intfindex);
result:=timplintfentry(finterfaces.search(intfindex)).implindex;
end;
procedure timplementedinterfaces.setimplindex(intfindex,implidx:longint);
begin
checkindex(intfindex);
timplintfentry(finterfaces.search(intfindex)).implindex:=implidx;
end;
function timplementedinterfaces.searchintf(def: tdef): longint;
var
i: longint;
begin
i:=1;
while (i<=count) and (tdef(interfaces(i))<>def) do inc(i);
if i<=count then
searchintf:=i
else
searchintf:=-1;
end;
procedure timplementedinterfaces.buildderef;
var
i: longint;
begin
for i:=1 to count do
with timplintfentry(finterfaces.search(i)) do
intfderef.build(intf);
end;
procedure timplementedinterfaces.deref;
var
i: longint;
begin
for i:=1 to count do
with timplintfentry(finterfaces.search(i)) do
intf:=tobjectdef(intfderef.resolve);
end;
procedure timplementedinterfaces.addintf_deref(const d:tderef;iofs:longint);
var
hintf : timplintfentry;
begin
hintf:=timplintfentry.create_deref(d);
hintf.ioffset:=iofs;
finterfaces.insert(hintf);
end;
procedure timplementedinterfaces.addintf(def: tdef);
begin
if not assigned(def) or (searchintf(def)<>-1) or (def.deftype<>objectdef) or
not (tobjectdef(def).objecttype in [odt_interfacecom,odt_interfacecorba]) then
internalerror(200006124);
finterfaces.insert(timplintfentry.create(tobjectdef(def)));
end;
procedure timplementedinterfaces.clearmappings;
var
i: longint;
begin
for i:=1 to count do
with timplintfentry(finterfaces.search(i)) do
begin
if assigned(namemappings) then
namemappings.free;
namemappings:=nil;
end;
end;
procedure timplementedinterfaces.addmappings(intfindex: longint; const origname, newname: string);
begin
checkindex(intfindex);
with timplintfentry(finterfaces.search(intfindex)) do
begin
if not assigned(namemappings) then
namemappings:=tdictionary.create;
namemappings.insert(tnamemap.create(origname,newname));
end;
end;
function timplementedinterfaces.getmappings(intfindex: longint; const origname: string; var nextexist: pointer): string;
begin
checkindex(intfindex);
if not assigned(nextexist) then
with timplintfentry(finterfaces.search(intfindex)) do
begin
if assigned(namemappings) then
nextexist:=namemappings.search(origname)
else
nextexist:=nil;
end;
if assigned(nextexist) then
begin
getmappings:=tnamemap(nextexist).newname^;
nextexist:=tnamemap(nextexist).listnext;
end
else
getmappings:='';
end;
procedure timplementedinterfaces.addimplproc(intfindex: longint; procdef: tprocdef);
var
found : boolean;
i : longint;
begin
checkindex(intfindex);
with timplintfentry(finterfaces.search(intfindex)) do
begin
if not assigned(procdefs) then
procdefs:=tindexarray.create(4);
{ No duplicate entries of the same procdef }
found:=false;
for i:=1 to procdefs.count do
if tprocdefstore(procdefs.search(i)).procdef=procdef then
begin
found:=true;
break;
end;
if not found then
procdefs.insert(tprocdefstore.create(procdef));
end;
end;
function timplementedinterfaces.implproccount(intfindex: longint): longint;
begin
checkindex(intfindex);
with timplintfentry(finterfaces.search(intfindex)) do
if assigned(procdefs) then
implproccount:=procdefs.count
else
implproccount:=0;
end;
function timplementedinterfaces.implprocs(intfindex: longint; procindex: longint): tprocdef;
begin
checkindex(intfindex);
with timplintfentry(finterfaces.search(intfindex)) do
if assigned(procdefs) then
implprocs:=tprocdefstore(procdefs.search(procindex)).procdef
else
internalerror(200006131);
end;
function timplementedinterfaces.isimplmergepossible(intfindex, remainindex: longint; var weight: longint): boolean;
var
possible: boolean;
i: longint;
iiep1: TIndexArray;
iiep2: TIndexArray;
begin
checkindex(intfindex);
checkindex(remainindex);
iiep1:=timplintfentry(finterfaces.search(intfindex)).procdefs;
iiep2:=timplintfentry(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:=
(tprocdefstore(iiep1.search(i)).procdef=tprocdefstore(iiep2.search(i)).procdef);
inc(i);
end;
if possible then
weight:=iiep1.count;
end;
isimplmergepossible:=possible;
end;
{****************************************************************************
TFORWARDDEF
****************************************************************************}
constructor tforwarddef.create(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 create;
registerdef:=oldregisterdef;
deftype:=forwarddef;
tosymname:=stringdup(s);
forwardpos:=pos;
end;
function tforwarddef.gettypename:string;
begin
gettypename:='unresolved forward to '+tosymname^;
end;
destructor tforwarddef.destroy;
begin
if assigned(tosymname) then
stringdispose(tosymname);
inherited destroy;
end;
{****************************************************************************
TERRORDEF
****************************************************************************}
constructor terrordef.create;
begin
inherited create;
deftype:=errordef;
end;
procedure terrordef.ppuwrite(ppufile:tcompilerppufile);
begin
{ Can't write errordefs to ppu }
internalerror(200411063);
end;
function terrordef.gettypename:string;
begin
gettypename:='<erroneous type>';
end;
function terrordef.getmangledparaname:string;
begin
getmangledparaname:='error';
end;
{****************************************************************************
Definition Helpers
****************************************************************************}
function is_interfacecom(def: tdef): boolean;
begin
is_interfacecom:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype=odt_interfacecom);
end;
function is_interfacecorba(def: tdef): boolean;
begin
is_interfacecorba:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype=odt_interfacecorba);
end;
function is_interface(def: tdef): boolean;
begin
is_interface:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype in [odt_interfacecom,odt_interfacecorba]);
end;
function is_class(def: tdef): boolean;
begin
is_class:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype=odt_class);
end;
function is_object(def: tdef): boolean;
begin
is_object:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype=odt_object);
end;
function is_cppclass(def: tdef): boolean;
begin
is_cppclass:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype=odt_cppclass);
end;
function is_class_or_interface(def: tdef): boolean;
begin
is_class_or_interface:=
assigned(def) and
(def.deftype=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_interfacecom,odt_interfacecorba]);
end;
{$ifdef x86}
function use_sse(def : tdef) : boolean;
begin
use_sse:=(is_single(def) and (aktfputype in sse_singlescalar)) or
(is_double(def) and (aktfputype in sse_doublescalar));
end;
{$endif x86}
end.
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