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dc5f5c3f63
fpc/compiler/symdef.pas
paul dc5f5c3f63 compiler: use current_structdef instead of current_objectdef in more places 
git-svn-id: trunk@16658 -
2010-12-30 06:46:06 +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;
{$i fpcdefs.inc}
interface
uses
{ common }
cclasses,
{ global }
globtype,globals,tokens,constexp,
{ symtable }
symconst,symbase,symtype,
{ ppu }
ppu,
{ node }
node,
{ aasm }
aasmbase,aasmtai,aasmdata,
cpubase,cpuinfo,
cgbase,cgutils,
parabase
;
type
{************************************************
TDef
************************************************}
{ tstoreddef }
tstoreddef = class(tdef)
protected
typesymderef : tderef;
public
{$ifdef EXTDEBUG}
fileinfo : tfileposinfo;
{$endif}
{ generic support }
genericdef : tstoreddef;
genericdefderef : tderef;
generictokenbuf : tdynamicarray;
constructor create(dt:tdeftyp);
constructor ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
destructor destroy;override;
function getcopy : tstoreddef;virtual;
procedure ppuwrite(ppufile:tcompilerppufile);virtual;
procedure buildderef;override;
procedure buildderefimpl;override;
procedure deref;override;
procedure derefimpl;override;
function size:aint;override;
function getvardef:longint;override;
function alignment:shortint;override;
function is_publishable : boolean;override;
function needs_inittable : boolean;override;
function rtti_mangledname(rt:trttitype):string;override;
function in_currentunit: boolean;
{ regvars }
function is_intregable : boolean;
function is_fpuregable : boolean;
{ generics }
procedure initgeneric;
private
savesize : aint;
end;
tfiletyp = (ft_text,ft_typed,ft_untyped);
tfiledef = class(tstoreddef)
filetyp : tfiletyp;
typedfiledef : tdef;
typedfiledefderef : tderef;
constructor createtext;
constructor createuntyped;
constructor createtyped(def : tdef);
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;
function getvardef:longint;override;
procedure setsize;
function is_publishable : boolean;override;
function needs_inittable : boolean;override;
end;
tformaldef = class(tstoreddef)
typed:boolean;
constructor create(Atyped:boolean);
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
function GetTypeName:string;override;
end;
tforwarddef = class(tstoreddef)
tosymname : pshortstring;
forwardpos : tfileposinfo;
constructor create(const s:string;const pos:tfileposinfo);
destructor destroy;override;
function getcopy:tstoreddef;override;
function GetTypeName:string;override;
end;
tundefineddef = class(tstoreddef)
constructor create;
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);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;
tabstractpointerdef = class(tstoreddef)
pointeddef : tdef;
pointeddefderef : tderef;
constructor create(dt:tdeftyp;def:tdef);
constructor ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
end;
tpointerdef = class(tabstractpointerdef)
is_far : boolean;
has_pointer_math : boolean;
constructor create(def:tdef);
constructor createfar(def:tdef);
function getcopy:tstoreddef;override;
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
function GetTypeName:string;override;
end;
tprocdef = class;
{ tabstractrecorddef }
tabstractrecorddef= class(tstoreddef)
objname,
objrealname: PShortString;
symtable : TSymtable;
cloneddef : tabstractrecorddef;
cloneddefderef : tderef;
objectoptions : tobjectoptions;
constructor create(const n:string; dt:tdeftyp);
constructor ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
destructor destroy; override;
procedure check_forwards; virtual;
function find_procdef_bytype(pt:tproctypeoption): tprocdef;
function GetSymtable(t:tGetSymtable):TSymtable;override;
function is_packed:boolean;
function RttiName: string;
end;
trecorddef = class(tabstractrecorddef)
public
isunion : boolean;
constructor create(const n:string; 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 : shortint;override;
function padalignment: shortint;
function GetTypeName:string;override;
{ debug }
function needs_inittable : boolean;override;
end;
tobjectdef = class;
{ TImplementedInterface }
TImplementedInterface = class
IntfDef : tobjectdef;
IntfDefDeref : tderef;
IType : tinterfaceentrytype;
IOffset : longint;
VtblImplIntf : TImplementedInterface;
NameMappings : TFPHashList;
ProcDefs : TFPObjectList;
ImplementsGetter : tsym;
constructor create(aintf: tobjectdef);
constructor create_deref(d:tderef);
destructor destroy; override;
function getcopy:TImplementedInterface;
procedure buildderef;
procedure deref;
procedure AddMapping(const origname, newname: string);
function GetMapping(const origname: string):string;
procedure AddImplProc(pd:tprocdef);
function IsImplMergePossible(MergingIntf:TImplementedInterface;out weight: longint): boolean;
end;
{ tvmtentry }
tvmtentry = record
procdef : tprocdef;
procdefderef : tderef;
visibility : tvisibility;
end;
pvmtentry = ^tvmtentry;
{ tobjectdef }
tvmcallstatic = (vmcs_default, vmcs_yes, vmcs_no, vmcs_unreachable);
pmvcallstaticinfo = ^tmvcallstaticinfo;
tmvcallstaticinfo = array[0..1024*1024-1] of tvmcallstatic;
tobjectdef = class(tabstractrecorddef)
private
fcurrent_dispid: longint;
public
dwarf_struct_lab : tasmsymbol;
childof : tobjectdef;
childofderef : tderef;
{ for C++ classes: name of the library this class is imported from }
import_lib,
{ for Objective-C: protocols and classes can have the same name there }
objextname : pshortstring;
{ to be able to have a variable vmt position }
{ and no vmt field for objects without virtuals }
vmtentries : TFPList;
vmcallstaticinfo : pmvcallstaticinfo;
vmt_offset : longint;
objecttype : tobjecttyp;
iidguid : pguid;
iidstr : pshortstring;
writing_class_record_dbginfo,
{ a class of this type has been created in this module }
created_in_current_module,
{ a loadvmtnode for this class has been created in this
module, so if a classrefdef variable of this or a parent
class is used somewhere to instantiate a class, then this
class may be instantiated
}
maybe_created_in_current_module,
{ a "class of" this particular class has been created in
this module
}
classref_created_in_current_module : boolean;
{ store implemented interfaces defs and name mappings }
ImplementedInterfaces : TFPObjectList;
constructor create(ot:tobjecttyp;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;
procedure buildderefimpl;override;
procedure derefimpl;override;
procedure resetvmtentries;
procedure copyvmtentries(objdef:tobjectdef);
function getparentdef:tdef;override;
function size : aint;override;
function alignment:shortint;override;
function vmtmethodoffset(index:longint):longint;
function members_need_inittable : boolean;
function find_implemented_interface(aintfdef:tobjectdef):TImplementedInterface;
{ this should be called when this class implements an interface }
procedure prepareguid;
function is_publishable : boolean;override;
function is_related(d : tdef) : boolean;override;
function needs_inittable : boolean;override;
function rtti_mangledname(rt:trttitype):string;override;
function vmt_mangledname : string;
procedure check_forwards; override;
procedure insertvmt;
procedure set_parent(c : tobjectdef);
function find_destructor: tprocdef;
function implements_any_interfaces: boolean;
{ dispinterface support }
function get_next_dispid: longint;
{ enumerator support }
function search_enumerator_get: tprocdef;
function search_enumerator_move: tprocdef;
function search_enumerator_current: tsym;
{ WPO }
procedure register_created_object_type;override;
procedure register_maybe_created_object_type;
procedure register_created_classref_type;
procedure register_vmt_call(index:longint);
{ ObjC & C++ }
procedure make_all_methods_external;
{ ObjC }
procedure finish_objc_data;
function check_objc_types: boolean;
{ C++ }
procedure finish_cpp_data;
end;
tclassrefdef = class(tabstractpointerdef)
constructor create(def:tdef);
constructor ppuload(ppufile:tcompilerppufile);
procedure ppuwrite(ppufile:tcompilerppufile);override;
function getcopy:tstoreddef;override;
function GetTypeName:string;override;
function is_publishable : boolean;override;
function rtti_mangledname(rt:trttitype):string;override;
procedure register_created_object_type;override;
end;
tarraydef = class(tstoreddef)
lowrange,
highrange : aint;
rangedef : tdef;
rangedefderef : tderef;
arrayoptions : tarraydefoptions;
protected
_elementdef : tdef;
_elementdefderef : tderef;
procedure setelementdef(def:tdef);
public
function elesize : aint;
function elepackedbitsize : aint;
function elecount : aword;
constructor create_from_pointer(def:tdef);
constructor create(l,h : aint;def:tdef);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function GetTypeName:string;override;
function getmangledparaname : string;override;
procedure buildderef;override;
procedure deref;override;
function size : aint;override;
function alignment : shortint;override;
{ returns the label of the range check string }
function needs_inittable : boolean;override;
property elementdef : tdef read _elementdef write setelementdef;
function is_publishable : boolean;override;
end;
torddef = class(tstoreddef)
low,high : TConstExprInt;
ordtype : tordtype;
constructor create(t : tordtype;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;
function alignment:shortint;override;
procedure setsize;
function packedbitsize: aint; override;
function getvardef : longint;override;
end;
tfloatdef = class(tstoreddef)
floattype : 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;
function alignment:shortint;override;
procedure setsize;
function getvardef:longint;override;
end;
{ tabstractprocdef }
tabstractprocdef = class(tstoreddef)
{ saves a definition to the return type }
returndef : tdef;
returndefderef : tderef;
parast : TSymtable;
paras : tparalist;
proctypeoption : tproctypeoption;
proccalloption : tproccalloption;
procoptions : tprocoptions;
callerargareasize,
calleeargareasize: pint;
{ number of user visibile parameters }
maxparacount,
minparacount : byte;
{$ifdef m68k}
exp_funcretloc : tregister; { explicit funcretloc for AmigaOS }
{$endif}
funcretloc : array[tcallercallee] of TCGPara;
has_paraloc_info : tcallercallee; { paraloc info is available }
constructor create(dt:tdeftyp;level:byte);
constructor ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
destructor destroy;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
procedure calcparas;
function typename_paras(showhidden:boolean): string;
function is_methodpointer:boolean;virtual;
function is_addressonly:boolean;virtual;
function no_self_node:boolean;
procedure check_mark_as_nested;
procedure init_paraloc_info(side: tcallercallee);
function stack_tainting_parameter(side: tcallercallee): boolean;
private
procedure count_para(p:TObject;arg:pointer);
procedure insert_para(p:TObject;arg:pointer);
end;
tprocvardef = class(tabstractprocdef)
constructor create(level:byte);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
function GetSymtable(t:tGetSymtable):TSymtable;override;
function size : aint;override;
function GetTypeName:string;override;
function is_publishable : boolean;override;
function is_methodpointer:boolean;override;
function is_addressonly:boolean;override;
function getmangledparaname:string;override;
end;
tmessageinf = record
case integer of
0 : (str : pshortstring);
1 : (i : longint);
end;
tinlininginfo = record
{ node tree }
code : tnode;
flags : tprocinfoflags;
end;
pinlininginfo = ^tinlininginfo;
{$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;
{$endif oldregvars}
{ tprocdef }
tprocdef = class(tabstractprocdef)
private
_mangledname : pshortstring;
public
messageinf : tmessageinf;
dispid : longint;
{$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;
{$endif}
symoptions : tsymoptions;
deprecatedmsg : pshortstring;
{ symbol owning this definition }
procsym : tsym;
procsymderef : tderef;
{ alias names }
aliasnames : TCmdStrList;
{ symtables }
localst : TSymtable;
funcretsym : tsym;
funcretsymderef : tderef;
struct : tabstractrecorddef;
structderef : tderef;
{$if defined(powerpc) or defined(m68k)}
{ library symbol for AmigaOS/MorphOS }
libsym : tsym;
libsymderef : tderef;
{$endif powerpc or m68k}
{ name of the result variable to insert in the localsymtable }
resultname : pshortstring;
{ import info }
import_dll,
import_name : pshortstring;
{ info for inlining the subroutine, if this pointer is nil,
the procedure can't be inlined }
inlininginfo : pinlininginfo;
{$ifdef oldregvars}
regvarinfo: pregvarinfo;
{$endif oldregvars}
{ First/last assembler symbol/instruction in aasmoutput list.
Note: initialised after compiling the code for the procdef, but
not saved to/restored from ppu. Used when inserting debug info }
procstarttai,
procendtai : tai;
import_nr : word;
extnumber : word;
{$ifdef i386}
fpu_used : byte;
{$endif i386}
visibility : tvisibility;
{ 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;
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;
function GetSymtable(t:tGetSymtable):TSymtable;override;
function GetTypeName : string;override;
function mangledname : string;
procedure setmangledname(const s : string);
function fullprocname(showhidden:boolean):string;
function cplusplusmangledname : string;
function objcmangledname : string;
function is_methodpointer:boolean;override;
function is_addressonly:boolean;override;
end;
{ single linked list of overloaded procs }
pprocdeflist = ^tprocdeflist;
tprocdeflist = record
def : tprocdef;
defderef : tderef;
next : pprocdeflist;
end;
tstringdef = class(tstoreddef)
stringtype : tstringtype;
len : aint;
constructor createshort(l : byte);
constructor loadshort(ppufile:tcompilerppufile);
constructor createlong(l : aint);
constructor loadlong(ppufile:tcompilerppufile);
constructor createansi;
constructor loadansi(ppufile:tcompilerppufile);
constructor createwide;
constructor loadwide(ppufile:tcompilerppufile);
constructor createunicode;
constructor loadunicode(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 : shortint;override;
function needs_inittable : boolean;override;
function getvardef:longint;override;
end;
{ tenumdef }
tenumdef = class(tstoreddef)
minval,
maxval : aint;
has_jumps : boolean;
basedef : tenumdef;
basedefderef : tderef;
symtable : TSymtable;
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;
function GetTypeName:string;override;
function is_publishable : boolean;override;
procedure calcsavesize;
function packedbitsize: aint; override;
procedure setmax(_max:aint);
procedure setmin(_min:aint);
function min:aint;
function max:aint;
function getfirstsym:tsym;
end;
tsetdef = class(tstoreddef)
elementdef : tdef;
elementdefderef : tderef;
setbase,
setmax : aword;
constructor create(def:tdef;low, high : aint);
constructor ppuload(ppufile:tcompilerppufile);
function getcopy : tstoreddef;override;
procedure ppuwrite(ppufile:tcompilerppufile);override;
procedure buildderef;override;
procedure deref;override;
function GetTypeName:string;override;
function is_publishable : boolean;override;
end;
var
current_structdef: tabstractrecorddef; { used for private functions check !! }
current_objectdef : tobjectdef absolute current_structdef;
current_genericdef : tobjectdef; { used to reject declaration of generic class inside generic class }
current_specializedef : tobjectdef; { used to implement usage of generic class in itself }
{ default types }
generrordef, { error in definition }
voidpointertype, { pointer for Void-pointeddef }
charpointertype, { pointer for Char-pointeddef }
widecharpointertype, { pointer for WideChar-pointeddef }
voidfarpointertype,
cundefinedtype,
cformaltype, { unique formal definition }
ctypedformaltype, { unique typed formal definition }
voidtype, { Void (procedure) }
cchartype, { Char }
cwidechartype, { WideChar }
booltype, { boolean type }
bool8type,
bool16type,
bool32type,
bool64type, { implement me }
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, { 32 bit floating point number }
s64floattype, { 64 bit floating point number }
s80floattype, { 80 bit floating point number }
sc80floattype, { 80 bit floating point number but stored like in C }
s64currencytype, { pointer to a currency type }
cshortstringtype, { pointer to type of short string const }
clongstringtype, { pointer to type of long string const }
cansistringtype, { pointer to type of ansi string const }
cwidestringtype, { pointer to type of wide string const }
cunicodestringtype,
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 }
hresultdef,
{ 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 and signed ord type with the same size as a pointer }
ptruinttype,
ptrsinttype,
{ several types to simulate more or less C++ objects for GDB }
vmttype,
vmtarraytype,
pvmttype : tdef; { 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;
{ pointer to jump buffer }
rec_jmp_buf : trecorddef;
{ Objective-C base types }
objc_metaclasstype,
objc_superclasstype,
objc_idtype,
objc_seltype : tpointerdef;
objc_objecttype : trecorddef;
{ base type of @protocol(protocolname) Objective-C statements }
objc_protocoltype : tobjectdef;
{ helper types for for-in "fast enumeration" support in Objective-C 2.0 }
objc_fastenumeration : tobjectdef;
objc_fastenumerationstate : trecorddef;
const
{$ifdef i386}
pbestrealtype : ^tdef = @s80floattype;
{$endif}
{$ifdef x86_64}
pbestrealtype : ^tdef = @s80floattype;
{$endif}
{$ifdef m68k}
pbestrealtype : ^tdef = @s64floattype;
{$endif}
{$ifdef alpha}
pbestrealtype : ^tdef = @s64floattype;
{$endif}
{$ifdef powerpc}
pbestrealtype : ^tdef = @s64floattype;
{$endif}
{$ifdef POWERPC64}
pbestrealtype : ^tdef = @s64floattype;
{$endif}
{$ifdef ia64}
pbestrealtype : ^tdef = @s64floattype;
{$endif}
{$ifdef SPARC}
pbestrealtype : ^tdef = @s64floattype;
{$endif SPARC}
{$ifdef vis}
pbestrealtype : ^tdef = @s64floattype;
{$endif vis}
{$ifdef ARM}
pbestrealtype : ^tdef = @s64floattype;
{$endif ARM}
{$ifdef MIPS}
pbestrealtype : ^tdef = @s64floattype;
{$endif MIPS}
{$ifdef AVR}
pbestrealtype : ^tdef = @s64floattype;
{$endif AVR}
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_dispinterface(def: tdef): boolean;
function is_object(def: tdef): boolean;
function is_class(def: tdef): boolean;
function is_cppclass(def: tdef): boolean;
function is_objcclass(def: tdef): boolean;
function is_objcclassref(def: tdef): boolean;
function is_objcprotocol(def: tdef): boolean;
function is_objccategory(def: tdef): boolean;
function is_objc_class_or_protocol(def: tdef): boolean;
function is_objc_protocol_or_category(def: tdef): boolean;
function is_class_or_interface(def: tdef): boolean;
function is_class_or_interface_or_objc(def: tdef): boolean;
function is_class_or_interface_or_object(def: tdef): boolean;
function is_class_or_interface_or_dispinterface(def: tdef): boolean;
function is_class_or_interface_or_dispinterface_or_objc(def: tdef): boolean;
function is_class_or_object(def: tdef): boolean;
function is_record(def: tdef): boolean;
procedure loadobjctypes;
procedure maybeloadcocoatypes;
function use_vectorfpu(def : tdef) : boolean;
implementation
uses
SysUtils,
cutils,
{ global }
verbose,
{ target }
systems,aasmcpu,paramgr,
{ symtable }
symsym,symtable,symutil,defutil,objcdef,
{ module }
fmodule,
{ other }
gendef,
fpccrc
;
{****************************************************************************
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.typ<>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.vardef.mangledparaname;
end;
if not is_void(tprocdef(st.defowner).returndef) then
s:=s+'$$'+tprocdef(st.defowner).returndef.mangledparaname;
newlen:=length(s);
{ Replace with CRC if the parameter line is very long }
if (newlen-oldlen>12) and
((newlen+length(prefix)>100) or (newlen-oldlen>32)) then
begin
crc:=0;
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.vardef.mangledparaname;
crc:=UpdateCrc32(crc,hs[1],length(hs));
end;
end;
hs:=hp.vardef.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;
if length(prefix)>100 then
begin
crc:=0;
crc:=UpdateCrc32(crc,prefix[1],length(prefix));
prefix:='$CRC'+hexstr(crc,8);
end;
st:=st.defowner.owner;
end;
{ object/classes symtable, nested type definitions in classes require the while loop }
while st.symtabletype in [ObjectSymtable,recordsymtable] do
begin
if not (st.defowner.typ in [objectdef,recorddef]) then
internalerror(200204174);
prefix:=tabstractrecorddef(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 }
{ Further, the Mac OS X 10.5 linker does not consider symbols which do not }
{ start with '_' as regular symbols (it does not generate N_GSYM entries }
{ those in the debug map, leading to troubles with dsymutil). So always }
{ add an underscore on darwin. }
if (target_info.system in systems_darwin) then
result := '_' + result;
end;
{****************************************************************************
TDEF (base class for definitions)
****************************************************************************}
constructor tstoreddef.create(dt:tdeftyp);
var
insertstack : psymtablestackitem;
begin
inherited create(dt);
savesize := 0;
{$ifdef EXTDEBUG}
fileinfo := current_filepos;
{$endif}
generictokenbuf:=nil;
genericdef:=nil;
{ Don't register forwarddefs, they are disposed at the
end of an type block }
if (dt=forwarddef) then
exit;
{ Register in current_module }
if assigned(current_module) then
begin
current_module.deflist.Add(self);
DefId:=current_module.deflist.Count-1;
end;
{ Register in symtable stack }
if assigned(symtablestack) then
begin
insertstack:=symtablestack.stack;
while assigned(insertstack) and
(insertstack^.symtable.symtabletype=withsymtable) do
insertstack:=insertstack^.next;
if not assigned(insertstack) then
internalerror(200602044);
insertstack^.symtable.insertdef(self);
end;
end;
destructor tstoreddef.destroy;
begin
{ Direct calls are not allowed, use symtable.deletedef() }
if assigned(owner) then
internalerror(200612311);
if assigned(generictokenbuf) then
begin
generictokenbuf.free;
generictokenbuf:=nil;
end;
inherited destroy;
end;
constructor tstoreddef.ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
var
sizeleft,i : longint;
buf : array[0..255] of byte;
begin
inherited create(dt);
DefId:=ppufile.getlongint;
current_module.deflist[DefId]:=self;
{$ifdef EXTDEBUG}
fillchar(fileinfo,sizeof(fileinfo),0);
{$endif}
{ load }
ppufile.getderef(typesymderef);
ppufile.getsmallset(defoptions);
ppufile.getsmallset(defstates);
if df_generic in defoptions then
begin
sizeleft:=ppufile.getlongint;
initgeneric;
while sizeleft>0 do
begin
if sizeleft>sizeof(buf) then
i:=sizeof(buf)
else
i:=sizeleft;
ppufile.getdata(buf,i);
generictokenbuf.write(buf,i);
dec(sizeleft,i);
end;
end;
if df_specialization in defoptions then
ppufile.getderef(genericdefderef);
end;
function Tstoreddef.rtti_mangledname(rt:trttitype):string;
var
prefix : string[4];
begin
if rt=fullrtti then
begin
prefix:='RTTI';
include(defstates,ds_rtti_table_used);
end
else
begin
prefix:='INIT';
include(defstates,ds_init_table_used);
end;
if assigned(typesym) and
(owner.symtabletype in [staticsymtable,globalsymtable]) then
result:=make_mangledname(prefix,owner,typesym.name)
else
result:=make_mangledname(prefix,findunitsymtable(owner),'DEF'+tostr(DefId))
end;
function tstoreddef.in_currentunit: boolean;
var
st: tsymtable;
begin
st:=owner;
while not(st.symtabletype in [globalsymtable,staticsymtable]) do
st:=st.defowner.owner;
result:=st.iscurrentunit;
end;
function tstoreddef.getcopy : tstoreddef;
begin
Message(sym_e_cant_create_unique_type);
getcopy:=terrordef.create;
end;
procedure tstoreddef.ppuwrite(ppufile:tcompilerppufile);
var
sizeleft,i : longint;
buf : array[0..255] of byte;
oldintfcrc : boolean;
begin
ppufile.putlongint(DefId);
ppufile.putderef(typesymderef);
ppufile.putsmallset(defoptions);
oldintfcrc:=ppufile.do_crc;
ppufile.do_crc:=false;
ppufile.putsmallset(defstates);
if df_generic in defoptions then
begin
if assigned(generictokenbuf) then
begin
sizeleft:=generictokenbuf.size;
generictokenbuf.seek(0);
end
else
sizeleft:=0;
ppufile.putlongint(sizeleft);
while sizeleft>0 do
begin
if sizeleft>sizeof(buf) then
i:=sizeof(buf)
else
i:=sizeleft;
generictokenbuf.read(buf,i);
ppufile.putdata(buf,i);
dec(sizeleft,i);
end;
end;
ppufile.do_crc:=oldintfcrc;
if df_specialization in defoptions then
ppufile.putderef(genericdefderef);
end;
procedure tstoreddef.buildderef;
begin
typesymderef.build(typesym);
genericdefderef.build(genericdef);
end;
procedure tstoreddef.buildderefimpl;
begin
end;
procedure tstoreddef.deref;
begin
typesym:=ttypesym(typesymderef.resolve);
if df_specialization in defoptions then
genericdef:=tstoreddef(genericdefderef.resolve);
end;
procedure tstoreddef.derefimpl;
begin
end;
function tstoreddef.size : aint;
begin
size:=savesize;
end;
function tstoreddef.getvardef:longint;
begin
result:=varUndefined;
end;
function tstoreddef.alignment : shortint;
begin
{ natural alignment by default }
alignment:=size_2_align(savesize);
{ can happen if savesize = 0, e.g. for voiddef or
an empty record
}
if (alignment=0) then
alignment:=1;
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;
var
recsize,temp: longint;
begin
is_intregable:=false;
case typ of
orddef,
pointerdef,
enumdef,
classrefdef:
is_intregable:=true;
procvardef :
is_intregable:=tprocvardef(self).is_addressonly;
objectdef:
is_intregable:=(is_class_or_interface_or_dispinterface_or_objc(self)) and not needs_inittable;
setdef:
is_intregable:=is_smallset(self);
recorddef:
begin
recsize:=size;
is_intregable:=
ispowerof2(recsize,temp) and
(recsize <= sizeof(aint));
end;
end;
end;
function tstoreddef.is_fpuregable : boolean;
begin
{$ifdef x86}
result:=use_vectorfpu(self);
{$else x86}
result:=(typ=floatdef) and not(cs_fp_emulation in current_settings.moduleswitches);
{$endif x86}
end;
procedure tstoreddef.initgeneric;
begin
if assigned(generictokenbuf) then
internalerror(200512131);
generictokenbuf:=tdynamicarray.create(256);
end;
{****************************************************************************
Tstringdef
****************************************************************************}
constructor tstringdef.createshort(l : byte);
begin
inherited create(stringdef);
stringtype:=st_shortstring;
len:=l;
savesize:=len+1;
end;
constructor tstringdef.loadshort(ppufile:tcompilerppufile);
begin
inherited ppuload(stringdef,ppufile);
stringtype:=st_shortstring;
len:=ppufile.getbyte;
savesize:=len+1;
end;
constructor tstringdef.createlong(l : aint);
begin
inherited create(stringdef);
stringtype:=st_longstring;
len:=l;
savesize:=sizeof(pint);
end;
constructor tstringdef.loadlong(ppufile:tcompilerppufile);
begin
inherited ppuload(stringdef,ppufile);
stringtype:=st_longstring;
len:=ppufile.getaint;
savesize:=sizeof(pint);
end;
constructor tstringdef.createansi;
begin
inherited create(stringdef);
stringtype:=st_ansistring;
len:=-1;
savesize:=sizeof(pint);
end;
constructor tstringdef.loadansi(ppufile:tcompilerppufile);
begin
inherited ppuload(stringdef,ppufile);
stringtype:=st_ansistring;
len:=ppufile.getaint;
savesize:=sizeof(pint);
end;
constructor tstringdef.createwide;
begin
inherited create(stringdef);
stringtype:=st_widestring;
len:=-1;
savesize:=sizeof(pint);
end;
constructor tstringdef.loadwide(ppufile:tcompilerppufile);
begin
inherited ppuload(stringdef,ppufile);
stringtype:=st_widestring;
len:=ppufile.getaint;
savesize:=sizeof(pint);
end;
constructor tstringdef.createunicode;
begin
inherited create(stringdef);
stringtype:=st_unicodestring;
len:=-1;
savesize:=sizeof(pint);
end;
constructor tstringdef.loadunicode(ppufile:tcompilerppufile);
begin
inherited ppuload(stringdef,ppufile);
stringtype:=st_unicodestring;
len:=ppufile.getaint;
savesize:=sizeof(pint);
end;
function tstringdef.getcopy : tstoreddef;
begin
result:=tstringdef.create(typ);
result.typ:=stringdef;
tstringdef(result).stringtype:=stringtype;
tstringdef(result).len:=len;
tstringdef(result).savesize:=savesize;
end;
function tstringdef.stringtypname:string;
const
typname:array[tstringtype] of string[10]=(
'shortstr','longstr','ansistr','widestr','unicodestr'
);
begin
stringtypname:=typname[stringtype];
end;
procedure tstringdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
if stringtype=st_shortstring then
begin
{$ifdef extdebug}
if len > 255 then internalerror(12122002);
{$endif}
ppufile.putbyte(byte(len))
end
else
ppufile.putaint(len);
case stringtype of
st_shortstring : ppufile.writeentry(ibshortstringdef);
st_longstring : ppufile.writeentry(iblongstringdef);
st_ansistring : ppufile.writeentry(ibansistringdef);
st_widestring : ppufile.writeentry(ibwidestringdef);
st_unicodestring : ppufile.writeentry(ibunicodestringdef);
end;
end;
function tstringdef.needs_inittable : boolean;
begin
needs_inittable:=stringtype in [st_ansistring,st_widestring,st_unicodestring];
end;
function tstringdef.GetTypeName : string;
const
names : array[tstringtype] of string[15] = (
'ShortString','LongString','AnsiString','WideString','UnicodeString');
begin
GetTypeName:=names[stringtype];
end;
function tstringdef.getvardef : longint;
const
vardef : array[tstringtype] of longint = (
varUndefined,varUndefined,varString,varOleStr,varUString);
begin
result:=vardef[stringtype];
end;
function tstringdef.alignment : shortint;
begin
case stringtype of
st_unicodestring,
st_widestring,
st_ansistring:
alignment:=size_2_align(savesize);
st_longstring,
st_shortstring:
{ char to string accesses byte 0 and 1 with one word access }
if (tf_requires_proper_alignment in target_info.flags) or
{ macpas needs an alignment of 2 (MetroWerks compatible) }
(m_mac in current_settings.modeswitches) then
alignment:=size_2_align(2)
else
alignment:=size_2_align(1);
else
internalerror(200412301);
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(enumdef);
minval:=0;
maxval:=0;
calcsavesize;
has_jumps:=false;
basedef:=nil;
symtable:=tenumsymtable.create(self);
end;
constructor tenumdef.create_subrange(_basedef:tenumdef;_min,_max:aint);
begin
inherited create(enumdef);
minval:=_min;
maxval:=_max;
basedef:=_basedef;
calcsavesize;
has_jumps:=false;
symtable:=basedef.symtable.getcopy;
include(defoptions, df_copied_def);
end;
constructor tenumdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(enumdef,ppufile);
minval:=ppufile.getaint;
maxval:=ppufile.getaint;
savesize:=ppufile.getaint;
has_jumps:=false;
if df_copied_def in defoptions then
begin
symtable:=nil;
ppufile.getderef(basedefderef);
end
else
begin
// create with nil defowner first to prevent values changes on insert
symtable:=tenumsymtable.create(nil);
tenumsymtable(symtable).ppuload(ppufile);
symtable.defowner:=self;
end;
end;
destructor tenumdef.destroy;
begin
symtable.free;
symtable:=nil;
inherited destroy;
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;
tenumdef(result).symtable.free;
tenumdef(result).symtable:=symtable.getcopy;
tenumdef(result).basedef:=self;
end;
tenumdef(result).has_jumps:=has_jumps;
tenumdef(result).basedefderef:=basedefderef;
include(tenumdef(result).defoptions,df_copied_def);
end;
procedure tenumdef.calcsavesize;
begin
if (current_settings.packenum=8) or (min<low(longint)) or (int64(max)>high(cardinal)) then
savesize:=8
else
if (current_settings.packenum=4) or (min<low(smallint)) or (max>high(word)) then
savesize:=4
else
if (current_settings.packenum=2) or (min<low(shortint)) or (max>high(byte)) then
savesize:=2
else
savesize:=1;
end;
function tenumdef.packedbitsize: aint;
var
sizeval: tconstexprint;
power: longint;
begin
result := 0;
if (minval >= 0) and
(maxval <= 1) then
result := 1
else
begin
if (minval>=0) then
sizeval:=maxval
else
{ don't count 0 twice }
sizeval:=(cutils.max(-minval,maxval)*2)-1;
{ 256 must become 512 etc. }
nextpowerof2(sizeval+1,power);
result := power;
end;
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;
function tenumdef.getfirstsym: tsym;
var
i:integer;
begin
for i := 0 to symtable.SymList.Count - 1 do
begin
result:=tsym(symtable.SymList[i]);
if tenumsym(result).value=minval then
exit;
end;
result:=nil;
end;
procedure tenumdef.buildderef;
begin
inherited buildderef;
if df_copied_def in defoptions then
basedefderef.build(basedef)
else
tenumsymtable(symtable).buildderef;
end;
procedure tenumdef.deref;
begin
inherited deref;
if df_copied_def in defoptions then
begin
basedef:=tenumdef(basedefderef.resolve);
symtable:=basedef.symtable.getcopy;
end
else
tenumsymtable(symtable).deref;
end;
procedure tenumdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putaint(min);
ppufile.putaint(max);
ppufile.putaint(savesize);
if df_copied_def in defoptions then
ppufile.putderef(basedefderef);
ppufile.writeentry(ibenumdef);
if not (df_copied_def in defoptions) then
tenumsymtable(symtable).ppuwrite(ppufile);
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 : tordtype;v,b : TConstExprInt);
begin
inherited create(orddef);
low:=v;
high:=b;
ordtype:=t;
setsize;
end;
constructor torddef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(orddef,ppufile);
ordtype:=tordtype(ppufile.getbyte);
low:=ppufile.getexprint;
high:=ppufile.getexprint;
setsize;
end;
function torddef.getcopy : tstoreddef;
begin
result:=torddef.create(ordtype,low,high);
result.typ:=orddef;
torddef(result).low:=low;
torddef(result).high:=high;
torddef(result).ordtype:=ordtype;
torddef(result).savesize:=savesize;
end;
function torddef.alignment:shortint;
begin
if (target_info.system in [system_i386_darwin,system_i386_iphonesim,system_arm_darwin]) and
(ordtype in [s64bit,u64bit]) then
result := 4
else
result := inherited alignment;
end;
procedure torddef.setsize;
const
sizetbl : array[tordtype] of longint = (
0,
1,2,4,8,
1,2,4,8,
1,1,2,4,8,
1,2,8
);
begin
savesize:=sizetbl[ordtype];
end;
function torddef.packedbitsize: aint;
var
sizeval: tconstexprint;
power: longint;
begin
result := 0;
if ordtype = uvoid then
exit;
{$ifndef cpu64bitalu}
if (ordtype in [s64bit,u64bit]) then
{$else not cpu64bitalu}
if (ordtype = u64bit) or
((ordtype = s64bit) and
((low <= (system.low(int64) div 2)) or
(high > (system.high(int64) div 2)))) then
{$endif cpu64bitalu}
result := 64
else if (low >= 0) and
(high <= 1) then
result := 1
else
begin
if (low>=0) then
sizeval:=high
else
{ don't count 0 twice }
sizeval:=(cutils.max(-low,high)*2)-1;
{ 256 must become 512 etc. }
nextpowerof2(sizeval+1,power);
result := power;
end;
end;
function torddef.getvardef : longint;
const
basetype2vardef : array[tordtype] of longint = (
varUndefined,
varbyte,varword,varlongword,varqword,
varshortint,varsmallint,varinteger,varint64,
varboolean,varboolean,varboolean,varUndefined,varUndefined,
varUndefined,varUndefined,varCurrency);
begin
result:=basetype2vardef[ordtype];
end;
procedure torddef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(ordtype));
ppufile.putexprint(low);
ppufile.putexprint(high);
ppufile.writeentry(iborddef);
end;
function torddef.is_publishable : boolean;
begin
is_publishable:=(ordtype<>uvoid);
end;
function torddef.GetTypeName : string;
const
names : array[tordtype] of string[20] = (
'untyped',
'Byte','Word','DWord','QWord',
'ShortInt','SmallInt','LongInt','Int64',
'Boolean','ByteBool','WordBool','LongBool','QWordBool',
'Char','WideChar','Currency');
begin
GetTypeName:=names[ordtype];
end;
{****************************************************************************
TFLOATDEF
****************************************************************************}
constructor tfloatdef.create(t : tfloattype);
begin
inherited create(floatdef);
floattype:=t;
setsize;
end;
constructor tfloatdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(floatdef,ppufile);
floattype:=tfloattype(ppufile.getbyte);
setsize;
end;
function tfloatdef.getcopy : tstoreddef;
begin
result:=tfloatdef.create(floattype);
result.typ:=floatdef;
tfloatdef(result).savesize:=savesize;
end;
function tfloatdef.alignment:shortint;
begin
if (target_info.system in [system_i386_darwin,system_i386_iphonesim,system_arm_darwin]) then
case floattype of
s80real: result:=16;
s64real,
s64currency,
s64comp : result:=4;
else
result := inherited alignment;
end
else
result := inherited alignment;
end;
procedure tfloatdef.setsize;
begin
case floattype of
s32real : savesize:=4;
s80real : savesize:=10;
sc80real:
if target_info.system in [system_i386_darwin,system_i386_iphonesim,system_x86_64_darwin,
system_x86_64_linux,system_x86_64_freebsd,
system_x86_64_solaris,system_x86_64_embedded] then
savesize:=16
else
savesize:=12;
s64real,
s64currency,
s64comp : savesize:=8;
else
savesize:=0;
end;
end;
function tfloatdef.getvardef : longint;
const
floattype2vardef : array[tfloattype] of longint = (
varSingle,varDouble,varUndefined,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:=floattype2vardef[floattype];
end;
procedure tfloatdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(floattype));
ppufile.writeentry(ibfloatdef);
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','CExtended','Comp','Currency','Float128');
begin
GetTypeName:=names[floattype];
end;
{****************************************************************************
TFILEDEF
****************************************************************************}
constructor tfiledef.createtext;
begin
inherited create(filedef);
filetyp:=ft_text;
typedfiledef:=nil;
setsize;
end;
constructor tfiledef.createuntyped;
begin
inherited create(filedef);
filetyp:=ft_untyped;
typedfiledef:=nil;
setsize;
end;
constructor tfiledef.createtyped(def:tdef);
begin
inherited create(filedef);
filetyp:=ft_typed;
typedfiledef:=def;
setsize;
end;
constructor tfiledef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(filedef,ppufile);
filetyp:=tfiletyp(ppufile.getbyte);
if filetyp=ft_typed then
ppufile.getderef(typedfiledefderef)
else
typedfiledef:=nil;
setsize;
end;
function tfiledef.getcopy : tstoreddef;
begin
case filetyp of
ft_typed:
result:=tfiledef.createtyped(typedfiledef);
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
typedfiledefderef.build(typedfiledef);
end;
procedure tfiledef.deref;
begin
inherited deref;
if filetyp=ft_typed then
typedfiledef:=tdef(typedfiledefderef.resolve);
end;
procedure tfiledef.setsize;
begin
{$ifdef cpu64bitaddr}
case filetyp of
ft_text :
if target_info.system in [system_x86_64_win64,system_ia64_win64] then
savesize:=632{+8}
else
savesize:=628{+8};
ft_typed,
ft_untyped :
if target_info.system in [system_x86_64_win64,system_ia64_win64] then
savesize:=372
else
savesize:=368;
end;
{$else cpu64bitaddr}
case filetyp of
ft_text :
savesize:=592{+4};
ft_typed,
ft_untyped :
savesize:=332;
end;
{$endif cpu64bitaddr}
end;
procedure tfiledef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(filetyp));
if filetyp=ft_typed then
ppufile.putderef(typedfiledefderef);
ppufile.writeentry(ibfiledef);
end;
function tfiledef.GetTypeName : string;
begin
case filetyp of
ft_untyped:
GetTypeName:='File';
ft_typed:
GetTypeName:='File Of '+typedfiledef.typename;
ft_text:
GetTypeName:='Text'
end;
end;
function tfiledef.getmangledparaname : string;
begin
case filetyp of
ft_untyped:
getmangledparaname:='FILE';
ft_typed:
getmangledparaname:='FILE$OF$'+typedfiledef.mangledparaname;
ft_text:
getmangledparaname:='TEXT'
end;
end;
{****************************************************************************
TVARIANTDEF
****************************************************************************}
constructor tvariantdef.create(v : tvarianttype);
begin
inherited create(variantdef);
varianttype:=v;
setsize;
end;
constructor tvariantdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(variantdef,ppufile);
varianttype:=tvarianttype(ppufile.getbyte);
setsize;
end;
function tvariantdef.getcopy : tstoreddef;
begin
result:=tvariantdef.create(varianttype);
end;
procedure tvariantdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(varianttype));
ppufile.writeentry(ibvariantdef);
end;
function tvariantdef.getvardef : longint;
begin
Result:=varVariant;
end;
procedure tvariantdef.setsize;
begin
{$ifdef cpu64bitaddr}
savesize:=24;
{$else cpu64bitaddr}
savesize:=16;
{$endif cpu64bitaddr}
end;
function tvariantdef.GetTypeName : string;
begin
case varianttype of
vt_normalvariant:
GetTypeName:='Variant';
vt_olevariant:
GetTypeName:='OleVariant';
end;
end;
function tvariantdef.needs_inittable : boolean;
begin
needs_inittable:=true;
end;
function tvariantdef.is_publishable : boolean;
begin
is_publishable:=true;
end;
{****************************************************************************
TABSTRACtpointerdef
****************************************************************************}
constructor tabstractpointerdef.create(dt:tdeftyp;def:tdef);
begin
inherited create(dt);
pointeddef:=def;
savesize:=sizeof(pint);
end;
constructor tabstractpointerdef.ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
begin
inherited ppuload(dt,ppufile);
ppufile.getderef(pointeddefderef);
savesize:=sizeof(pint);
end;
procedure tabstractpointerdef.buildderef;
begin
inherited buildderef;
pointeddefderef.build(pointeddef);
end;
procedure tabstractpointerdef.deref;
begin
inherited deref;
pointeddef:=tdef(pointeddefderef.resolve);
end;
procedure tabstractpointerdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putderef(pointeddefderef);
end;
{****************************************************************************
tpointerdef
****************************************************************************}
constructor tpointerdef.create(def:tdef);
begin
inherited create(pointerdef,def);
is_far:=false;
has_pointer_math:=cs_pointermath in current_settings.localswitches;
end;
constructor tpointerdef.createfar(def:tdef);
begin
inherited create(pointerdef,def);
is_far:=true;
has_pointer_math:=cs_pointermath in current_settings.localswitches;
end;
constructor tpointerdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(pointerdef,ppufile);
is_far:=(ppufile.getbyte<>0);
has_pointer_math:=(ppufile.getbyte<>0);
end;
function tpointerdef.getcopy : tstoreddef;
begin
{ don't use direct pointeddef if it is a forwarddef because in other case
one of them will be destroyed on forward type resolve and the second will
point to garbage }
if pointeddef.typ=forwarddef then
result:=tpointerdef.create(tforwarddef(pointeddef).getcopy)
else
result:=tpointerdef.create(pointeddef);
tpointerdef(result).is_far:=is_far;
tpointerdef(result).has_pointer_math:=has_pointer_math;
tpointerdef(result).savesize:=savesize;
end;
procedure tpointerdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(is_far));
ppufile.putbyte(byte(has_pointer_math));
ppufile.writeentry(ibpointerdef);
end;
function tpointerdef.GetTypeName : string;
begin
if is_far then
GetTypeName:='^'+pointeddef.typename+';far'
else
GetTypeName:='^'+pointeddef.typename;
end;
{****************************************************************************
TCLASSREFDEF
****************************************************************************}
constructor tclassrefdef.create(def:tdef);
begin
inherited create(classrefdef,def);
end;
constructor tclassrefdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(classrefdef,ppufile);
end;
procedure tclassrefdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.writeentry(ibclassrefdef);
end;
function tclassrefdef.getcopy:tstoreddef;
begin
if pointeddef.typ=forwarddef then
result:=tclassrefdef.create(tforwarddef(pointeddef).getcopy)
else
result:=tclassrefdef.create(pointeddef);
tclassrefdef(result).savesize:=savesize;
end;
function tclassrefdef.GetTypeName : string;
begin
GetTypeName:='Class Of '+pointeddef.typename;
end;
function tclassrefdef.is_publishable : boolean;
begin
result:=true;
end;
function tclassrefdef.rtti_mangledname(rt: trttitype): string;
begin
if (tobjectdef(pointeddef).objecttype<>odt_objcclass) then
result:=inherited rtti_mangledname(rt)
else
result:=tobjectdef(pointeddef).rtti_mangledname(objcmetartti);
end;
procedure tclassrefdef.register_created_object_type;
begin
tobjectdef(pointeddef).register_created_classref_type;
end;
{***************************************************************************
TSETDEF
***************************************************************************}
constructor tsetdef.create(def:tdef;low, high : aint);
var
setallocbits: aint;
packedsavesize: aint;
begin
inherited create(setdef);
elementdef:=def;
setmax:=high;
if (current_settings.setalloc=0) then
begin
setbase:=0;
if (high<32) then
savesize:=Sizeof(longint)
else if (high<256) then
savesize:=32
else
savesize:=(high+7) div 8
end
else
begin
setallocbits:=current_settings.setalloc*8;
setbase:=low and not(setallocbits-1);
packedsavesize:=current_settings.setalloc*((((high+setallocbits)-setbase)) DIV setallocbits);
savesize:=packedsavesize;
if savesize=3 then
savesize:=4;
end;
end;
constructor tsetdef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(setdef,ppufile);
ppufile.getderef(elementdefderef);
savesize:=ppufile.getaint;
setbase:=ppufile.getaint;
setmax:=ppufile.getaint;
end;
function tsetdef.getcopy : tstoreddef;
begin
result:=tsetdef.create(elementdef,setbase,setmax);
{ the copy might have been created with a different setalloc setting }
tsetdef(result).savesize:=savesize;
end;
procedure tsetdef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putderef(elementdefderef);
ppufile.putaint(savesize);
ppufile.putaint(setbase);
ppufile.putaint(setmax);
ppufile.writeentry(ibsetdef);
end;
procedure tsetdef.buildderef;
begin
inherited buildderef;
elementdefderef.build(elementdef);
end;
procedure tsetdef.deref;
begin
inherited deref;
elementdef:=tdef(elementdefderef.resolve);
end;
function tsetdef.is_publishable : boolean;
begin
is_publishable:=savesize in [1,2,4];
end;
function tsetdef.GetTypeName : string;
begin
if assigned(elementdef) then
GetTypeName:='Set Of '+elementdef.typename
else
GetTypeName:='Empty Set';
end;
{***************************************************************************
TFORMALDEF
***************************************************************************}
constructor tformaldef.create(Atyped:boolean);
begin
inherited create(formaldef);
typed:=Atyped;
savesize:=0;
end;
constructor tformaldef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(formaldef,ppufile);
typed:=boolean(ppufile.getbyte);
savesize:=0;
end;
procedure tformaldef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(typed));
ppufile.writeentry(ibformaldef);
end;
function tformaldef.GetTypeName : string;
begin
if typed then
GetTypeName:='<Typed formal type>'
else
GetTypeName:='<Formal type>';
end;
{***************************************************************************
TARRAYDEF
***************************************************************************}
constructor tarraydef.create(l,h : aint;def:tdef);
begin
inherited create(arraydef);
lowrange:=l;
highrange:=h;
rangedef:=def;
_elementdef:=nil;
arrayoptions:=[];
end;
constructor tarraydef.create_from_pointer(def:tdef);
begin
{ use -1 so that the elecount will not overflow }
self.create(0,high(aint)-1,s32inttype);
arrayoptions:=[ado_IsConvertedPointer];
setelementdef(def);
end;
constructor tarraydef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(arraydef,ppufile);
{ the addresses are calculated later }
ppufile.getderef(_elementdefderef);
ppufile.getderef(rangedefderef);
lowrange:=ppufile.getaint;
highrange:=ppufile.getaint;
ppufile.getsmallset(arrayoptions);
end;
function tarraydef.getcopy : tstoreddef;
begin
result:=tarraydef.create(lowrange,highrange,rangedef);
tarraydef(result).arrayoptions:=arrayoptions;
tarraydef(result)._elementdef:=_elementdef;
end;
procedure tarraydef.buildderef;
begin
inherited buildderef;
_elementdefderef.build(_elementdef);
rangedefderef.build(rangedef);
end;
procedure tarraydef.deref;
begin
inherited deref;
_elementdef:=tdef(_elementdefderef.resolve);
rangedef:=tdef(rangedefderef.resolve);
end;
procedure tarraydef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putderef(_elementdefderef);
ppufile.putderef(rangedefderef);
ppufile.putaint(lowrange);
ppufile.putaint(highrange);
ppufile.putsmallset(arrayoptions);
ppufile.writeentry(ibarraydef);
end;
function tarraydef.elesize : aint;
begin
if (ado_IsBitPacked in arrayoptions) then
internalerror(2006080101);
if assigned(_elementdef) then
result:=_elementdef.size
else
result:=0;
end;
function tarraydef.elepackedbitsize : aint;
begin
if not(ado_IsBitPacked in arrayoptions) then
internalerror(2006080102);
if assigned(_elementdef) then
result:=_elementdef.packedbitsize
else
result:=0;
end;
function tarraydef.elecount : aword;
var
qhigh,qlow : qword;
begin
if ado_IsDynamicArray in arrayoptions then
begin
result:=0;
exit;
end;
if (highrange>0) and (lowrange<0) then
begin
qhigh:=highrange;
qlow:=qword(-lowrange);
{ prevent overflow, return 0 to indicate overflow }
if qhigh+qlow>qword(high(aint)-1) then
result:=0
else
result:=qhigh+qlow+1;
end
else
result:=int64(highrange)-lowrange+1;
end;
function tarraydef.size : aint;
var
cachedelecount : aword;
cachedelesize : aint;
begin
if ado_IsDynamicArray in arrayoptions then
begin
size:=sizeof(pint);
exit;
end;
{ Tarraydef.size may never be called for an open array! }
if highrange<lowrange then
internalerror(99080501);
if not (ado_IsBitPacked in arrayoptions) then
cachedelesize:=elesize
else
cachedelesize := elepackedbitsize;
cachedelecount:=elecount;
if (cachedelesize = 0) then
begin
size := 0;
exit;
end;
if (cachedelecount = 0) then
begin
size := -1;
exit;
end;
{ prevent overflow, return -1 to indicate overflow }
{ also make sure we don't need 64/128 bit arithmetic to calculate offsets }
if (cachedelecount > aword(high(aint))) or
((high(aint) div cachedelesize) < aint(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
begin
result:=-1;
exit;
end;
result:=cachedelesize*aint(cachedelecount);
if (ado_IsBitPacked in arrayoptions) then
{ can't just add 7 and divide by 8, because that may overflow }
result:=result div 8 + ord((result mod 8)<>0);
end;
procedure tarraydef.setelementdef(def:tdef);
begin
_elementdef:=def;
if not(
(ado_IsDynamicArray in arrayoptions) or
(ado_IsConvertedPointer in arrayoptions) or
(highrange<lowrange)
) and
(size=-1) then
Message(sym_e_segment_too_large);
end;
function tarraydef.alignment : shortint;
begin
{ alignment of dyn. arrays doesn't depend on the element size }
if (ado_IsDynamicArray in arrayoptions) then
alignment:=size_2_align(sizeof(pint))
{ alignment is the alignment of the elements }
else if (elementdef.typ in [arraydef,recorddef,orddef,enumdef,floatdef]) or
((elementdef.typ=objectdef) and
is_object(elementdef)) then
alignment:=elementdef.alignment
{ alignment is the size of the elements }
else if not (ado_IsBitPacked in arrayoptions) then
alignment:=size_2_align(elesize)
else
alignment:=packedbitsloadsize(elepackedbitsize);
end;
function tarraydef.needs_inittable : boolean;
begin
needs_inittable:=(ado_IsDynamicArray in arrayoptions) or elementdef.needs_inittable;
end;
function tarraydef.GetTypeName : string;
begin
if (ado_IsConstString in arrayoptions) then
result:='Constant String'
else if (ado_isarrayofconst in arrayoptions) or
(ado_isConstructor in arrayoptions) then
begin
if (ado_isvariant in arrayoptions) or ((highrange=-1) and (lowrange=0)) then
GetTypeName:='Array Of Const'
else
GetTypeName:='Array Of Const/Constant Open Array of '+elementdef.typename;
end
else if (ado_IsDynamicArray in arrayoptions) then
GetTypeName:='Dynamic Array Of '+elementdef.typename
else if ((highrange=-1) and (lowrange=0)) then
GetTypeName:='Open Array Of '+elementdef.typename
else
begin
result := '';
if (ado_IsBitPacked in arrayoptions) then
result:='Packed ';
if rangedef.typ=enumdef then
result:=result+'Array['+rangedef.typename+'] Of '+elementdef.typename
else
result:=result+'Array['+tostr(lowrange)+'..'+
tostr(highrange)+'] Of '+elementdef.typename
end;
end;
function tarraydef.getmangledparaname : string;
begin
if ado_isarrayofconst in arrayoptions then
getmangledparaname:='array_of_const'
else
if ((highrange=-1) and (lowrange=0)) then
getmangledparaname:='array_of_'+elementdef.mangledparaname
else
internalerror(200204176);
end;
function tarraydef.is_publishable : boolean;
begin
Result:=ado_IsDynamicArray in arrayoptions;
end;
{***************************************************************************
tabstractrecorddef
***************************************************************************}
constructor tabstractrecorddef.create(const n:string; dt:tdeftyp);
begin
inherited create(dt);
objname:=stringdup(upper(n));
objrealname:=stringdup(n);
objectoptions:=[];
end;
constructor tabstractrecorddef.ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
begin
inherited ppuload(dt,ppufile);
objrealname:=stringdup(ppufile.getstring);
objname:=stringdup(upper(objrealname^));
ppufile.getsmallset(objectoptions);
end;
procedure tabstractrecorddef.ppuwrite(ppufile: tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.putstring(objrealname^);
ppufile.putsmallset(objectoptions);
end;
destructor tabstractrecorddef.destroy;
begin
stringdispose(objname);
stringdispose(objrealname);
inherited destroy;
end;
procedure tabstractrecorddef.check_forwards;
begin
tstoredsymtable(symtable).check_forwards;
end;
function tabstractrecorddef.find_procdef_bytype(pt:tproctypeoption): tprocdef;
var
i: longint;
sym: tsym;
begin
for i:=0 to symtable.SymList.Count-1 do
begin
sym:=tsym(symtable.SymList[i]);
if sym.typ=procsym then
begin
result:=tprocsym(sym).find_procdef_bytype(pt);
if assigned(result) then
exit;
end;
end;
result:=nil;
end;
function tabstractrecorddef.GetSymtable(t:tGetSymtable):TSymtable;
begin
if t=gs_record then
GetSymtable:=symtable
else
GetSymtable:=nil;
end;
function tabstractrecorddef.is_packed:boolean;
begin
result:=tabstractrecordsymtable(symtable).is_packed;
end;
function tabstractrecorddef.RttiName: string;
var
tmp: tabstractrecorddef;
begin
Result:=objrealname^;
tmp:=self;
repeat
if tmp.owner.symtabletype in [ObjectSymtable,recordsymtable] then
tmp:=tabstractrecorddef(tmp.owner.defowner)
else
break;
Result:=tmp.objrealname^+'.'+Result;
until tmp=nil;
end;
{***************************************************************************
trecorddef
***************************************************************************}
constructor trecorddef.create(const n:string; p:TSymtable);
begin
inherited create(n,recorddef);
symtable:=p;
{ we can own the symtable only if nobody else owns a copy so far }
if symtable.refcount=1 then
symtable.defowner:=self;
isunion:=false;
end;
constructor trecorddef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(recorddef,ppufile);
if df_copied_def in defoptions then
ppufile.getderef(cloneddefderef)
else
begin
symtable:=trecordsymtable.create(objrealname^,0);
trecordsymtable(symtable).fieldalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).recordalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).padalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).usefieldalignment:=shortint(ppufile.getbyte);
trecordsymtable(symtable).datasize:=ppufile.getaint;
trecordsymtable(symtable).ppuload(ppufile);
{ requires usefieldalignment to be set }
symtable.defowner:=self;
end;
isunion:=false;
end;
destructor trecorddef.destroy;
begin
if assigned(symtable) then
begin
symtable.free;
symtable:=nil;
end;
inherited destroy;
end;
function trecorddef.getcopy : tstoreddef;
begin
result:=trecorddef.create(objrealname^,symtable.getcopy);
trecorddef(result).isunion:=isunion;
include(trecorddef(result).defoptions,df_copied_def);
end;
function trecorddef.needs_inittable : boolean;
begin
needs_inittable:=trecordsymtable(symtable).needs_init_final
end;
procedure trecorddef.buildderef;
begin
inherited buildderef;
if df_copied_def in defoptions then
cloneddefderef.build(symtable.defowner)
else
tstoredsymtable(symtable).buildderef;
end;
procedure trecorddef.deref;
begin
inherited deref;
{ now dereference the definitions }
if df_copied_def in defoptions then
begin
cloneddef:=trecorddef(cloneddefderef.resolve);
symtable:=cloneddef.symtable.getcopy;
end
else
tstoredsymtable(symtable).deref;
{ 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;
{ assign JMP_BUF? load only from system unit }
if not(assigned(rec_jmp_buf)) and
(upper(typename)='JMP_BUF') and
assigned(owner) and
assigned(owner.name) and
(owner.name^='SYSTEM') then
rec_jmp_buf:=self;
end;
procedure trecorddef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
if df_copied_def in defoptions then
ppufile.putderef(cloneddefderef)
else
begin
ppufile.putbyte(byte(trecordsymtable(symtable).fieldalignment));
ppufile.putbyte(byte(trecordsymtable(symtable).recordalignment));
ppufile.putbyte(byte(trecordsymtable(symtable).padalignment));
ppufile.putbyte(byte(trecordsymtable(symtable).usefieldalignment));
ppufile.putaint(trecordsymtable(symtable).datasize);
end;
ppufile.writeentry(ibrecorddef);
if not(df_copied_def in defoptions) then
trecordsymtable(symtable).ppuwrite(ppufile);
end;
function trecorddef.size:aint;
begin
result:=trecordsymtable(symtable).datasize;
end;
function trecorddef.alignment:shortint;
begin
alignment:=trecordsymtable(symtable).recordalignment;
end;
function trecorddef.padalignment:shortint;
begin
padalignment := trecordsymtable(symtable).padalignment;
end;
function trecorddef.GetTypeName : string;
begin
GetTypeName:='<record type>'
end;
{***************************************************************************
TABSTRACTPROCDEF
***************************************************************************}
constructor tabstractprocdef.create(dt:tdeftyp;level:byte);
begin
inherited create(dt);
parast:=tparasymtable.create(self,level);
paras:=nil;
minparacount:=0;
maxparacount:=0;
proctypeoption:=potype_none;
proccalloption:=pocall_none;
procoptions:=[];
returndef:=voidtype;
savesize:=sizeof(pint);
callerargareasize:=0;
calleeargareasize:=0;
has_paraloc_info:=callnoside;
funcretloc[callerside].init;
funcretloc[calleeside].init;
check_mark_as_nested;
end;
destructor tabstractprocdef.destroy;
begin
if assigned(paras) then
begin
{$ifdef MEMDEBUG}
memprocpara.start;
{$endif MEMDEBUG}
paras.free;
paras:=nil;
{$ifdef MEMDEBUG}
memprocpara.stop;
{$endif MEMDEBUG}
end;
if assigned(parast) then
begin
{$ifdef MEMDEBUG}
memprocparast.start;
{$endif MEMDEBUG}
parast.free;
parast:=nil;
{$ifdef MEMDEBUG}
memprocparast.stop;
{$endif MEMDEBUG}
end;
funcretloc[callerside].done;
funcretloc[calleeside].done;
inherited destroy;
end;
procedure tabstractprocdef.count_para(p:TObject;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:TObject;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(false);
paracount:=0;
minparacount:=0;
maxparacount:=0;
parast.SymList.ForEachCall(@count_para,@paracount);
paras.capacity:=paracount;
{ Insert parameters in table }
parast.SymList.ForEachCall(@insert_para,nil);
{ Order parameters }
paras.sortparas;
end;
procedure tabstractprocdef.buildderef;
begin
{ released procdef? }
if not assigned(parast) then
exit;
inherited buildderef;
returndefderef.build(returndef);
{ parast }
tparasymtable(parast).buildderef;
end;
procedure tabstractprocdef.deref;
begin
inherited deref;
returndef:=tdef(returndefderef.resolve);
{ parast }
tparasymtable(parast).deref;
{ recalculated parameters }
calcparas;
end;
constructor tabstractprocdef.ppuload(dt:tdeftyp;ppufile:tcompilerppufile);
begin
inherited ppuload(dt,ppufile);
parast:=nil;
Paras:=nil;
minparacount:=0;
maxparacount:=0;
ppufile.getderef(returndefderef);
{ TODO: remove fpu_used loading}
ppufile.getbyte;
proctypeoption:=tproctypeoption(ppufile.getbyte);
proccalloption:=tproccalloption(ppufile.getbyte);
ppufile.getnormalset(procoptions);
funcretloc[callerside].init;
if po_explicitparaloc in procoptions then
funcretloc[callerside].ppuload(ppufile);
savesize:=sizeof(pint);
if (po_explicitparaloc in procoptions) then
has_paraloc_info:=callerside;
end;
procedure tabstractprocdef.ppuwrite(ppufile:tcompilerppufile);
var
oldintfcrc : boolean;
begin
{ released procdef? }
if not assigned(parast) then
exit;
inherited ppuwrite(ppufile);
ppufile.putderef(returndefderef);
oldintfcrc:=ppufile.do_interface_crc;
ppufile.do_interface_crc:=false;
ppufile.putbyte(0);
ppufile.putbyte(ord(proctypeoption));
ppufile.putbyte(ord(proccalloption));
ppufile.putnormalset(procoptions);
ppufile.do_interface_crc:=oldintfcrc;
if (po_explicitparaloc in procoptions) then
funcretloc[callerside].ppuwrite(ppufile);
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+',';
if vo_is_hidden_para in hp.varoptions then
s:=s+'<';
case hp.varspez of
vs_var :
s:=s+'var ';
vs_const :
s:=s+'const ';
vs_out :
s:=s+'out ';
vs_constref :
s:=s+'constref ';
end;
if hp.univpara then
s:=s+'univ ';
if assigned(hp.vardef.typesym) then
begin
hs:=hp.vardef.typesym.realname;
if hs[1]<>'$' then
s:=s+hs
else
s:=s+hp.vardef.GetTypeName;
end
else
s:=s+hp.vardef.GetTypeName;
{ default value }
if assigned(hp.defaultconstsym) then
begin
hpc:=tconstsym(hp.defaultconstsym);
hs:='';
case hpc.consttyp of
conststring,
constresourcestring :
begin
If hpc.value.len>0 then
begin
setLength(hs,hpc.value.len);
{ don't write past the end of hs if the constant
is > 255 chars }
move(hpc.value.valueptr^,hs[1],length(hs));
{ make sure that constant strings with newline chars
don't create a linebreak in the assembler code,
since comments are line-based. Also remove nulls
because the comments are written as a pchar. }
ReplaceCase(hs,#0,'.');
ReplaceCase(hs,#10,'.');
ReplaceCase(hs,#13,'.');
end;
end;
constreal :
str(pbestreal(hpc.value.valueptr)^,hs);
constpointer :
hs:=tostr(hpc.value.valueordptr);
constord :
begin
if is_boolean(hpc.constdef) 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;
if vo_is_hidden_para in hp.varoptions then
s:=s+'>';
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;
function tabstractprocdef.no_self_node: boolean;
begin
Result:=([po_staticmethod,po_classmethod]<=procoptions)or
(proctypeoption in [potype_class_constructor,potype_class_destructor,potype_operator]);
end;
procedure tabstractprocdef.check_mark_as_nested;
begin
{ nested procvars require that nested functions use the Delphi-style
nested procedure calling convention }
if (parast.symtablelevel>normal_function_level) and
(m_nested_procvars in current_settings.modeswitches) then
include(procoptions,po_delphi_nested_cc);
end;
procedure tabstractprocdef.init_paraloc_info(side: tcallercallee);
begin
if (side in [callerside,callbothsides]) and
not(has_paraloc_info in [callerside,callbothsides]) then
begin
callerargareasize:=paramanager.create_paraloc_info(self,callerside);
if has_paraloc_info in [calleeside,callbothsides] then
has_paraloc_info:=callbothsides
else
has_paraloc_info:=callerside;
end;
if (side in [calleeside,callbothsides]) and
not(has_paraloc_info in [calleeside,callbothsides]) then
begin
calleeargareasize:=paramanager.create_paraloc_info(self,calleeside);
if has_paraloc_info in [callerside,callbothsides] then
has_paraloc_info:=callbothsides
else
has_paraloc_info:=calleeside;
end;
end;
function tabstractprocdef.stack_tainting_parameter(side: tcallercallee): boolean;
var
p: tparavarsym;
ploc: PCGParalocation;
i: longint;
begin
result:=false;
init_paraloc_info(side);
for i:=0 to parast.SymList.Count-1 do
if tsym(parast.SymList[i]).typ=paravarsym then
begin
p:=tparavarsym(parast.SymList[i]);
{ check if no parameter is located on the stack }
if is_open_array(p.vardef) or
is_array_of_const(p.vardef) then
begin
result:=true;
exit;
end;
ploc:=p.paraloc[side].location;
while assigned(ploc) do
begin
if (ploc^.loc=LOC_REFERENCE) then
begin
result:=true;
exit
end;
ploc:=ploc^.next;
end;
end;
end;
{***************************************************************************
TPROCDEF
***************************************************************************}
constructor tprocdef.create(level:byte);
begin
inherited create(procdef,level);
localst:=tlocalsymtable.create(self,parast.symtablelevel);
_mangledname:=nil;
fileinfo:=current_filepos;
extnumber:=$ffff;
aliasnames:=TCmdStrList.create;
funcretsym:=nil;
forwarddef:=true;
interfacedef:=false;
hasforward:=false;
struct := nil;
import_dll:=nil;
import_name:=nil;
import_nr:=0;
inlininginfo:=nil;
deprecatedmsg:=nil;
{$ifdef i386}
fpu_used:=maxfpuregs;
{$endif i386}
end;
constructor tprocdef.ppuload(ppufile:tcompilerppufile);
var
i,aliasnamescount : longint;
level : byte;
begin
inherited ppuload(procdef,ppufile);
if po_has_mangledname in procoptions then
_mangledname:=stringdup(ppufile.getstring)
else
_mangledname:=nil;
extnumber:=ppufile.getword;
level:=ppufile.getbyte;
ppufile.getderef(structderef);
ppufile.getderef(procsymderef);
ppufile.getposinfo(fileinfo);
visibility:=tvisibility(ppufile.getbyte);
ppufile.getsmallset(symoptions);
if sp_has_deprecated_msg in symoptions then
deprecatedmsg:=stringdup(ppufile.getstring)
else
deprecatedmsg:=nil;
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
ppufile.getderef(libsymderef);
{$endif powerpc}
{ import stuff }
if po_has_importdll in procoptions then
import_dll:=stringdup(ppufile.getstring)
else
import_dll:=nil;
if po_has_importname in procoptions then
import_name:=stringdup(ppufile.getstring)
else
import_name:=nil;
import_nr:=ppufile.getword;
if (po_msgint in procoptions) then
messageinf.i:=ppufile.getlongint;
if (po_msgstr in procoptions) then
messageinf.str:=stringdup(ppufile.getstring);
if (po_dispid in procoptions) then
dispid:=ppufile.getlongint;
{ 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;
aliasnames:=TCmdStrList.create;
{ count alias names }
aliasnamescount:=ppufile.getbyte;
for i:=1 to aliasnamescount do
aliasnames.insert(ppufile.getstring);
{ load para symtable }
parast:=tparasymtable.create(self,level);
tparasymtable(parast).ppuload(ppufile);
{ load local symtable }
if (po_has_inlininginfo in procoptions) then
begin
localst:=tlocalsymtable.create(self,level);
tlocalsymtable(localst).ppuload(ppufile);
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 current_settings.globalswitches) and
(tf_need_export in target_info.flags) and
(po_exports in procoptions) then
deffile.AddExport(mangledname);
forwarddef:=false;
interfacedef:=false;
hasforward:=false;
{ Disable po_has_inlining until the derefimpl is done }
exclude(procoptions,po_has_inlininginfo);
{$ifdef i386}
fpu_used:=maxfpuregs;
{$endif i386}
end;
destructor tprocdef.destroy;
begin
aliasnames.free;
aliasnames:=nil;
if assigned(localst) and
(localst.symtabletype<>staticsymtable) then
begin
{$ifdef MEMDEBUG}
memproclocalst.start;
{$endif MEMDEBUG}
localst.free;
localst:=nil;
{$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);
inlininginfo:=nil;
end;
stringdispose(resultname);
stringdispose(import_dll);
stringdispose(import_name);
stringdispose(deprecatedmsg);
if (po_msgstr in procoptions) then
stringdispose(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;
aliasnamescount : longint;
item : TCmdStrListItem;
begin
{ released procdef? }
if not assigned(parast) then
exit;
inherited ppuwrite(ppufile);
if po_has_mangledname in procoptions then
ppufile.putstring(_mangledname^);
ppufile.putword(extnumber);
ppufile.putbyte(parast.symtablelevel);
ppufile.putderef(structderef);
ppufile.putderef(procsymderef);
ppufile.putposinfo(fileinfo);
ppufile.putbyte(byte(visibility));
ppufile.putsmallset(symoptions);
if sp_has_deprecated_msg in symoptions then
ppufile.putstring(deprecatedmsg^);
{$ifdef powerpc}
{ library symbol for AmigaOS/MorphOS }
ppufile.putderef(libsymderef);
{$endif powerpc}
{ import }
if po_has_importdll in procoptions then
ppufile.putstring(import_dll^);
if po_has_importname in procoptions then
ppufile.putstring(import_name^);
ppufile.putword(import_nr);
if (po_msgint in procoptions) then
ppufile.putlongint(messageinf.i);
if (po_msgstr in procoptions) then
ppufile.putstring(messageinf.str^);
if (po_dispid in procoptions) then
ppufile.putlongint(dispid);
{ 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;
{ count alias names }
aliasnamescount:=0;
item:=TCmdStrListItem(aliasnames.first);
while assigned(item) do
begin
inc(aliasnamescount);
item:=TCmdStrListItem(item.next);
end;
if aliasnamescount>255 then
internalerror(200711021);
ppufile.putbyte(aliasnamescount);
item:=TCmdStrListItem(aliasnames.first);
while assigned(item) do
begin
ppufile.putstring(item.str);
item:=TCmdStrListItem(item.next);
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) then
begin
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;
end;
function tprocdef.fullprocname(showhidden:boolean):string;
var
s : string;
t : ttoken;
begin
{$ifdef EXTDEBUG}
showhidden:=true;
{$endif EXTDEBUG}
s:='';
if assigned(struct) then
begin
s:=struct.RttiName+'.';
if (po_classmethod in procoptions) and
not (proctypeoption in [potype_class_constructor,potype_class_destructor]) then
s:='class ' + s;
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;
potype_class_constructor:
s:='class constructor '+s;
potype_class_destructor:
s:='class destructor '+s;
else
if assigned(returndef) and
not(is_void(returndef)) then
s:=s+':'+returndef.GetTypeName;
end;
if owner.symtabletype=localsymtable then
s:=s+' is nested';
s:=s+';';
{ forced calling convention? }
if (po_hascallingconvention in procoptions) then
s:=s+' '+ProcCallOptionStr[proccalloption]+';';
if (po_staticmethod in procoptions) and
not (proctypeoption in [potype_class_constructor,potype_class_destructor]) then
s:=s+' Static;';
fullprocname:=s;
end;
function tprocdef.is_methodpointer:boolean;
begin
{ don't check assigned(_class), that's also the case for nested
procedures inside methods }
result:=owner.symtabletype=ObjectSymtable;
end;
function tprocdef.is_addressonly:boolean;
begin
result:=assigned(owner) and
(owner.symtabletype<>ObjectSymtable) and
(not(m_nested_procvars in current_settings.modeswitches) or
not is_nested_pd(self));
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.buildderef;
begin
inherited buildderef;
structderef.build(struct);
{ 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}
end;
procedure tprocdef.buildderefimpl;
begin
inherited buildderefimpl;
{ Localst is not available for main/unit init }
if assigned(localst) 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;
end;
procedure tprocdef.deref;
begin
inherited deref;
struct:=tabstractrecorddef(structderef.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}
end;
procedure tprocdef.derefimpl;
begin
{ 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 }
{ Not safe! A unit may be reresolved after its interface has been
parsed but before its implementation has been parsed, and in that
case the funcretsym is still required!
funcretsym:=nil; }
end;
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.vardef.mangledparaname;
end;
{ add resultdef, add $$ as separator to make it unique from a
parameter separator }
if not is_void(returndef) then
mangledname:=mangledname+'$$'+returndef.mangledparaname;
newlen:=length(mangledname);
{ Replace with CRC if the parameter line is very long }
if (newlen-oldlen>12) and
((newlen>100) or (newlen-oldlen>64)) then
begin
crc:=0;
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.vardef.mangledparaname;
crc:=UpdateCrc32(crc,hs[1],length(hs));
end;
end;
hs:=hp.vardef.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
{$ifdef NAMEMANGLING_GCC2}
ordtype2str : array[tordtype] of string[2] = (
'',
'Uc','Us','Ui','Us',
'Sc','s','i','x',
'b','b','b','b','b',
'c','w','x');
{$else NAMEMANGLING_GCC2}
ordtype2str : array[tordtype] of string[1] = (
'v',
'h','t','j','y',
'a','s','i','x',
'b','b','b','b','b',
'c','w','x');
floattype2str : array[tfloattype] of string[1] = (
'f','d','e','e',
'd','d','g');
{$endif NAMEMANGLING_GCC2}
var
s : string;
begin
case p.typ of
orddef:
s:=ordtype2str[torddef(p).ordtype];
pointerdef:
s:='P'+getcppparaname(tpointerdef(p).pointeddef);
{$ifndef NAMEMANGLING_GCC2}
floatdef:
s:=floattype2str[tfloatdef(p).floattype];
{$endif NAMEMANGLING_GCC2}
else
internalerror(2103001);
end;
getcppparaname:=s;
end;
var
s,s2 : string;
hp : TParavarsym;
i : integer;
begin
{$ifdef NAMEMANGLING_GCC2}
{ outdated gcc 2.x name mangling scheme }
s := procsym.realname;
if procsym.owner.symtabletype=ObjectSymtable then
begin
s2:=upper(tobjectdef(procsym.owner.defowner).objrealname^);
case proctypeoption of
potype_destructor:
s:='_$_'+tostr(length(s2))+s2;
potype_constructor:
s:='___'+tostr(length(s2))+s2;
else
s:='_'+s+'__'+tostr(length(s2))+s2;
end;
end
else s:=s+'__';
s:=s+'F';
{ concat modifiers }
{ !!!!! }
{ now we handle the parameters }
if maxparacount>0 then
begin
for i:=0 to paras.count-1 do
begin
hp:=tparavarsym(paras[i]);
{ no hidden parameters form part of a C++ mangled name:
a) self is not included
b) there are no "high" or other hidden parameters
}
if vo_is_hidden_para in hp.varoptions then
continue;
s2:=getcppparaname(hp.vardef);
if hp.varspez in [vs_var,vs_out] then
s2:='R'+s2;
s:=s+s2;
end;
end
else
s:=s+'v';
cplusplusmangledname:=s;
{$else NAMEMANGLING_GCC2}
{ gcc 3.x and 4.x name mangling scheme }
{ see http://www.codesourcery.com/public/cxx-abi/abi.html#mangling }
if procsym.owner.symtabletype=ObjectSymtable then
begin
s:='_ZN';
s2:=tobjectdef(procsym.owner.defowner).objextname^;
s:=s+tostr(length(s2))+s2;
case proctypeoption of
potype_constructor:
s:=s+'C1';
potype_destructor:
s:=s+'D1';
else
s:=s+tostr(length(procsym.realname))+procsym.realname;
end;
s:=s+'E';
end
else
s:=procsym.realname;
{ now we handle the parameters }
if maxparacount>0 then
begin
for i:=0 to paras.count-1 do
begin
hp:=tparavarsym(paras[i]);
{ no hidden parameters form part of a C++ mangled name:
a) self is not included
b) there are no "high" or other hidden parameters
}
if vo_is_hidden_para in hp.varoptions then
continue;
s2:=getcppparaname(hp.vardef);
if hp.varspez in [vs_var,vs_out] then
s2:='R'+s2;
s:=s+s2;
end;
end
else
s:=s+'v';
cplusplusmangledname:=s;
{$endif NAMEMANGLING_GCC2}
end;
function tprocdef.objcmangledname : string;
var
manglednamelen: longint;
iscatmethod : boolean;
begin
if not (po_msgstr in procoptions) then
internalerror(2009030901);
{ we may very well need longer strings to handle these... }
manglednamelen:=length(tobjectdef(procsym.owner.defowner).objextname^)+
length('+"[ ]"')+length(messageinf.str^);
iscatmethod:=oo_is_classhelper in tobjectdef(procsym.owner.defowner).objectoptions;
if (iscatmethod) then
inc(manglednamelen,length(tobjectdef(procsym.owner.defowner).childof.objextname^)+length('()'));
if manglednamelen>255 then
Message1(parser_e_objc_message_name_too_long,messageinf.str^);
if not(po_classmethod in procoptions) then
result:='"-['
else
result:='"+[';
{ quotes are necessary because the +/- otherwise confuse the assembler
into expecting a number
}
if iscatmethod then
result:=result+tobjectdef(procsym.owner.defowner).childof.objextname^+'(';
result:=result+tobjectdef(procsym.owner.defowner).objextname^;
if iscatmethod then
result:=result+')';
result:=result+' '+messageinf.str^+']"';
end;
procedure tprocdef.setmangledname(const s : string);
begin
{ This is not allowed anymore, the forward declaration
already needs to create the correct mangledname, no changes
afterwards are allowed (PFV) }
{ Exception: interface definitions in mode macpas, since in that }
{ case no reference to the old name can exist yet (JM) }
if assigned(_mangledname) then
if ((m_mac in current_settings.modeswitches) and
(interfacedef)) then
stringdispose(_mangledname)
else
internalerror(200411171);
{$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(procvardef,level);
end;
constructor tprocvardef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(procvardef,ppufile);
{ load para symtable }
parast:=tparasymtable.create(self,ppufile.getbyte);
tparasymtable(parast).ppuload(ppufile);
end;
function tprocvardef.getcopy : tstoreddef;
var
i : tcallercallee;
j : longint;
begin
result:=tprocvardef.create(parast.symtablelevel);
tprocvardef(result).returndef:=returndef;
tprocvardef(result).returndefderef:=returndefderef;
tprocvardef(result).parast:=parast.getcopy;
tprocvardef(result).savesize:=savesize;
{ create paralist copy }
tprocvardef(result).paras:=tparalist.create(false);
tprocvardef(result).paras.count:=paras.count;
for j:=0 to paras.count-1 do
tprocvardef(result).paras[j]:=paras[j];
tprocvardef(result).proctypeoption:=proctypeoption;
tprocvardef(result).proccalloption:=proccalloption;
tprocvardef(result).procoptions:=procoptions;
tprocvardef(result).callerargareasize:=callerargareasize;
tprocvardef(result).calleeargareasize:=calleeargareasize;
tprocvardef(result).maxparacount:=maxparacount;
tprocvardef(result).minparacount:=minparacount;
for i:=low(tcallercallee) to high(tcallercallee) do
tprocvardef(result).funcretloc[i]:=funcretloc[i].getcopy;
tprocvardef(result).has_paraloc_info:=has_paraloc_info;
{$ifdef m68k}
tprocvardef(result).exp_funcretloc:=exp_funcretloc;
{$endif}
end;
procedure tprocvardef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
{ Save the para symtable level (necessary to distinguish nested
procvars) }
ppufile.putbyte(parast.symtablelevel);
{ Write this entry }
ppufile.writeentry(ibprocvardef);
{ Save the para symtable, this is taken from the interface }
tparasymtable(parast).ppuwrite(ppufile);
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) or
is_nested_pd(self)) and
not(po_addressonly in procoptions) then
size:=2*sizeof(pint)
else
size:=sizeof(pint);
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) and
not is_nested_pd(self)) or
(po_addressonly in procoptions);
end;
function tprocvardef.getmangledparaname:string;
begin
if not(po_methodpointer in procoptions) then
if not is_nested_pd(self) then
result:='procvar'
else
result:='nestedprovar'
else
result:='procvarofobj'
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 assigned(returndef) and
(returndef<>voidtype) then
s:=s+' function'+typename_paras(showhidden)+':'+returndef.GetTypeName
else
s:=s+' procedure'+typename_paras(showhidden);
if po_methodpointer in procoptions then
s := s+' of object';
if is_nested_pd(self) then
s := s+' is nested';
GetTypeName := s+';'+ProcCallOptionStr[proccalloption]+'>';
end;
{***************************************************************************
TOBJECTDEF
***************************************************************************}
constructor tobjectdef.create(ot:tobjecttyp;const n:string;c:tobjectdef);
begin
inherited create(n,objectdef);
fcurrent_dispid:=0;
objecttype:=ot;
childof:=nil;
symtable:=tObjectSymtable.create(self,n,current_settings.packrecords);
{ create space for vmt !! }
vmtentries:=TFPList.Create;
vmt_offset:=0;
set_parent(c);
if objecttype in [odt_interfacecorba,odt_interfacecom,odt_dispinterface] then
prepareguid;
{ setup implemented interfaces }
if objecttype in [odt_class,odt_objcclass,odt_objcprotocol] then
ImplementedInterfaces:=TFPObjectList.Create(true)
else
ImplementedInterfaces:=nil;
writing_class_record_dbginfo:=false;
end;
constructor tobjectdef.ppuload(ppufile:tcompilerppufile);
var
i,
implintfcount : longint;
d : tderef;
ImplIntf : TImplementedInterface;
vmtentry : pvmtentry;
begin
inherited ppuload(objectdef,ppufile);
objecttype:=tobjecttyp(ppufile.getbyte);
objextname:=stringdup(ppufile.getstring);
{ only used for external Objective-C classes/protocols }
if (objextname^='') then
stringdispose(objextname);
import_lib:=stringdup(ppufile.getstring);
{ only used for external C++ classes }
if (import_lib^='') then
stringdispose(import_lib);
symtable:=tObjectSymtable.create(self,objrealname^,0);
tObjectSymtable(symtable).datasize:=ppufile.getaint;
tObjectSymtable(symtable).fieldalignment:=ppufile.getbyte;
tObjectSymtable(symtable).recordalignment:=ppufile.getbyte;
vmt_offset:=ppufile.getlongint;
ppufile.getderef(childofderef);
{ load guid }
iidstr:=nil;
if objecttype in [odt_interfacecom,odt_interfacecorba,odt_dispinterface] then
begin
new(iidguid);
ppufile.getguid(iidguid^);
iidstr:=stringdup(ppufile.getstring);
end;
vmtentries:=TFPList.Create;
vmtentries.count:=ppufile.getlongint;
for i:=0 to vmtentries.count-1 do
begin
ppufile.getderef(d);
new(vmtentry);
vmtentry^.procdef:=nil;
vmtentry^.procdefderef:=d;
vmtentry^.visibility:=tvisibility(ppufile.getbyte);
vmtentries[i]:=vmtentry;
end;
{ load implemented interfaces }
if objecttype in [odt_class,odt_objcclass,odt_objcprotocol] then
begin
ImplementedInterfaces:=TFPObjectList.Create(true);
implintfcount:=ppufile.getlongint;
for i:=0 to implintfcount-1 do
begin
ppufile.getderef(d);
ImplIntf:=TImplementedInterface.Create_deref(d);
ImplIntf.IOffset:=ppufile.getlongint;
ImplementedInterfaces.Add(ImplIntf);
end;
end
else
ImplementedInterfaces:=nil;
if df_copied_def in defoptions then
ppufile.getderef(cloneddefderef)
else
tObjectSymtable(symtable).ppuload(ppufile);
{ 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;
if (childof=nil) and
(objecttype=odt_objcclass) and
(objname^='PROTOCOL') then
objc_protocoltype:=self;
writing_class_record_dbginfo:=false;
end;
destructor tobjectdef.destroy;
begin
if assigned(symtable) then
begin
symtable.free;
symtable:=nil;
end;
stringdispose(objextname);
stringdispose(import_lib);
stringdispose(iidstr);
if assigned(ImplementedInterfaces) then
begin
ImplementedInterfaces.free;
ImplementedInterfaces:=nil;
end;
if assigned(iidguid) then
begin
dispose(iidguid);
iidguid:=nil;
end;
if assigned(vmtentries) then
begin
resetvmtentries;
vmtentries.free;
vmtentries:=nil;
end;
if assigned(vmcallstaticinfo) then
begin
freemem(vmcallstaticinfo);
vmcallstaticinfo:=nil;
end;
inherited destroy;
end;
function tobjectdef.getcopy : tstoreddef;
var
i : longint;
begin
result:=tobjectdef.create(objecttype,objrealname^,childof);
{ the constructor allocates a symtable which we release to avoid memory leaks }
tobjectdef(result).symtable.free;
tobjectdef(result).symtable:=symtable.getcopy;
if assigned(objextname) then
tobjectdef(result).objextname:=stringdup(objextname^);
if assigned(import_lib) then
tobjectdef(result).import_lib:=stringdup(import_lib^);
tobjectdef(result).objectoptions:=objectoptions;
include(tobjectdef(result).defoptions,df_copied_def);
tobjectdef(result).vmt_offset:=vmt_offset;
if assigned(iidguid) then
begin
new(tobjectdef(result).iidguid);
move(iidguid^,tobjectdef(result).iidguid^,sizeof(iidguid^));
end;
if assigned(iidstr) then
tobjectdef(result).iidstr:=stringdup(iidstr^);
if assigned(ImplementedInterfaces) then
begin
for i:=0 to ImplementedInterfaces.count-1 do
tobjectdef(result).ImplementedInterfaces.Add(TImplementedInterface(ImplementedInterfaces[i]).Getcopy);
end;
if assigned(vmtentries) then
begin
tobjectdef(result).vmtentries:=TFPList.Create;
tobjectdef(result).copyvmtentries(self);
end;
end;
procedure tobjectdef.ppuwrite(ppufile:tcompilerppufile);
var
i : longint;
vmtentry : pvmtentry;
ImplIntf : TImplementedInterface;
old_do_indirect_crc: boolean;
begin
{ if class1 in unit A changes, and class2 in unit B inherits from it
(so unit B uses unit A), then unit B with class2 will be recompiled.
However, if there is also a class3 in unit C that only depends on
unit B, then unit C will not be recompiled because nothing changed
to the interface of unit B. Nevertheless, unit C can indirectly
depend on unit A via derefs, and these must be updated -> the
indirect crc keeps track of such changes. }
old_do_indirect_crc:=ppufile.do_indirect_crc;
ppufile.do_indirect_crc:=true;
inherited ppuwrite(ppufile);
ppufile.putbyte(byte(objecttype));
if assigned(objextname) then
ppufile.putstring(objextname^)
else
ppufile.putstring('');
if assigned(import_lib) then
ppufile.putstring(import_lib^)
else
ppufile.putstring('');
ppufile.putaint(tObjectSymtable(symtable).datasize);
ppufile.putbyte(tObjectSymtable(symtable).fieldalignment);
ppufile.putbyte(tObjectSymtable(symtable).recordalignment);
ppufile.putlongint(vmt_offset);
ppufile.putderef(childofderef);
if objecttype in [odt_interfacecom,odt_interfacecorba,odt_dispinterface] then
begin
ppufile.putguid(iidguid^);
ppufile.putstring(iidstr^);
end;
ppufile.putlongint(vmtentries.count);
for i:=0 to vmtentries.count-1 do
begin
vmtentry:=pvmtentry(vmtentries[i]);
ppufile.putderef(vmtentry^.procdefderef);
ppufile.putbyte(byte(vmtentry^.visibility));
end;
if assigned(ImplementedInterfaces) then
begin
ppufile.putlongint(ImplementedInterfaces.Count);
for i:=0 to ImplementedInterfaces.Count-1 do
begin
ImplIntf:=TImplementedInterface(ImplementedInterfaces[i]);
ppufile.putderef(ImplIntf.intfdefderef);
ppufile.putlongint(ImplIntf.Ioffset);
end;
end;
if df_copied_def in defoptions then
ppufile.putderef(cloneddefderef);
ppufile.writeentry(ibobjectdef);
if not(df_copied_def in defoptions) then
tObjectSymtable(symtable).ppuwrite(ppufile);
ppufile.do_indirect_crc:=old_do_indirect_crc;
end;
function tobjectdef.GetTypeName:string;
begin
{ in this case we will go in endless recursion, because then }
{ there is no tsym associated yet with the def. It can occur }
{ (tests/webtbf/tw4757.pp), so for now give a generic name }
{ instead of the actual type name }
if not assigned(typesym) then
result:='<Currently Parsed Class>'
else
result:=typename;
end;
procedure tobjectdef.buildderef;
var
i : longint;
vmtentry : pvmtentry;
begin
inherited buildderef;
childofderef.build(childof);
if df_copied_def in defoptions then
cloneddefderef.build(symtable.defowner)
else
tstoredsymtable(symtable).buildderef;
for i:=0 to vmtentries.count-1 do
begin
vmtentry:=pvmtentry(vmtentries[i]);
vmtentry^.procdefderef.build(vmtentry^.procdef);
end;
if assigned(ImplementedInterfaces) then
begin
for i:=0 to ImplementedInterfaces.count-1 do
TImplementedInterface(ImplementedInterfaces[i]).buildderef;
end;
end;
procedure tobjectdef.deref;
var
i : longint;
vmtentry : pvmtentry;
begin
inherited deref;
childof:=tobjectdef(childofderef.resolve);
if df_copied_def in defoptions then
begin
cloneddef:=tobjectdef(cloneddefderef.resolve);
symtable:=cloneddef.symtable.getcopy;
end
else
tstoredsymtable(symtable).deref;
for i:=0 to vmtentries.count-1 do
begin
vmtentry:=pvmtentry(vmtentries[i]);
vmtentry^.procdef:=tprocdef(vmtentry^.procdefderef.resolve);
end;
if assigned(ImplementedInterfaces) then
begin
for i:=0 to ImplementedInterfaces.count-1 do
TImplementedInterface(ImplementedInterfaces[i]).deref;
end;
end;
procedure create_class_helper_for_procdef(def: tobject; arg: pointer);
var
pd: tprocdef absolute def;
st: tsymtable;
psym: tsym;
nname: TIDString;
begin
if (tdef(def).typ<>procdef) then
exit;
{ pd.owner = objcclass symtable -> defowner = objcclassdef ->
owner = symtable in which objcclassdef is defined
}
st:=pd.owner.defowner.owner;
nname:=class_helper_prefix+tprocsym(pd.procsym).name;
{ check for an existing procsym with our special name }
psym:=tsym(st.find(nname));
if not assigned(psym) then
begin
psym:=tprocsym.create(nname);
{ avoid warning about this symbol being unused }
psym.IncRefCount;
st.insert(psym,true);
end
else if (psym.typ<>procsym) then
internalerror(2009111501);
{ add ourselves to this special procsym }
tprocsym(psym).procdeflist.add(def);
end;
procedure tobjectdef.buildderefimpl;
begin
inherited buildderefimpl;
if not (df_copied_def in defoptions) then
tstoredsymtable(symtable).buildderefimpl;
end;
procedure tobjectdef.derefimpl;
begin
inherited derefimpl;
if not (df_copied_def in defoptions) then
tstoredsymtable(symtable).derefimpl;
{ the procdefs are not owned by the class helper procsyms, so they
are not stored/restored either -> re-add them here }
if (objecttype=odt_objcclass) or
(oo_is_classhelper in objectoptions) then
symtable.DefList.ForEachCall(@create_class_helper_for_procdef,nil);
end;
procedure tobjectdef.resetvmtentries;
var
i : longint;
begin
for i:=0 to vmtentries.Count-1 do
Dispose(pvmtentry(vmtentries[i]));
vmtentries.clear;
end;
procedure tobjectdef.copyvmtentries(objdef:tobjectdef);
var
i : longint;
vmtentry : pvmtentry;
begin
resetvmtentries;
vmtentries.count:=objdef.vmtentries.count;
for i:=0 to objdef.vmtentries.count-1 do
begin
new(vmtentry);
vmtentry^:=pvmtentry(objdef.vmtentries[i])^;
vmtentries[i]:=vmtentry;
end;
end;
function tobjectdef.getparentdef:tdef;
begin
{ 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
if assigned(childof) then
exit;
childof:=c;
if not assigned(c) then
exit;
{ inherit options and status }
objectoptions:=objectoptions+(c.objectoptions*inherited_objectoptions);
{ add the data of the anchestor class/object }
if (objecttype in [odt_class,odt_object,odt_objcclass]) then
begin
tObjectSymtable(symtable).datasize:=tObjectSymtable(symtable).datasize+tObjectSymtable(c.symtable).datasize;
{ inherit recordalignment }
tObjectSymtable(symtable).recordalignment:=tObjectSymtable(c.symtable).recordalignment;
if (oo_has_vmt in objectoptions) and
(oo_has_vmt in c.objectoptions) then
tObjectSymtable(symtable).datasize:=tObjectSymtable(symtable).datasize-sizeof(pint);
{ 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;
procedure tobjectdef.insertvmt;
var
vs: tfieldvarsym;
begin
if objecttype in [odt_interfacecom,odt_interfacecorba,odt_dispinterface,odt_objcclass,odt_objcprotocol] then
exit;
if (oo_has_vmt in objectoptions) then
internalerror(12345)
else
begin
tObjectSymtable(symtable).datasize:=align(tObjectSymtable(symtable).datasize,
tObjectSymtable(symtable).fieldalignment);
if (tf_requires_proper_alignment in target_info.flags) then
begin
{ Align VMT pointer and whole object instance if target CPU requires alignment. }
tObjectSymtable(symtable).datasize:=align(tObjectSymtable(symtable).datasize,sizeof(pint));
tObjectSymtable(symtable).alignrecord(tObjectSymtable(symtable).datasize,sizeof(pint));
end;
vs:=tfieldvarsym.create('_vptr$'+objname^,vs_value,voidpointertype,[]);
hidesym(vs);
tObjectSymtable(symtable).insert(vs);
tObjectSymtable(symtable).addfield(vs,vis_hidden);
if (tObjectSymtable(symtable).usefieldalignment<>bit_alignment) then
vmt_offset:=vs.fieldoffset
else
vmt_offset:=vs.fieldoffset div 8;
include(objectoptions,oo_has_vmt);
end;
end;
procedure tobjectdef.check_forwards;
begin
if not(objecttype in [odt_interfacecom,odt_interfacecorba,odt_dispinterface,odt_objcprotocol]) then
inherited;
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 prot implements d (or if they are equal) }
function is_related_protocol(prot: tobjectdef; d : tdef) : boolean;
var
i : longint;
begin
{ objcprotocols have multiple inheritance, all protocols from which
the current protocol inherits are stored in implementedinterfaces }
result:=prot=d;
if result then
exit;
for i:=0 to prot.ImplementedInterfaces.count-1 do
begin
result:=is_related_protocol(TImplementedInterface(prot.ImplementedInterfaces[i]).intfdef,d);
if result then
exit;
end;
end;
{ true, if self inherits from d (or if they are equal) }
function tobjectdef.is_related(d : tdef) : boolean;
var
hp : tobjectdef;
begin
if self=d then
begin
is_related:=true;
exit;
end;
if (d.typ<>objectdef) then
begin
is_related:=false;
exit;
end;
{ Objective-C protocols can use multiple inheritance }
if (objecttype=odt_objcprotocol) then
begin
is_related:=is_related_protocol(self,d);
exit
end;
{ formally declared Objective-C classes match Objective-C classes with
the same name }
if (objecttype=odt_objcclass) and
(tobjectdef(d).objecttype=odt_objcclass) and
((oo_is_formal in objectoptions) or
(oo_is_formal in tobjectdef(d).objectoptions)) and
(objrealname^=tobjectdef(d).objrealname^) then
begin
is_related:=true;
exit;
end;
hp:=childof;
while assigned(hp) do
begin
if hp=d then
begin
is_related:=true;
exit;
end;
hp:=hp.childof;
end;
is_related:=false;
end;
function tobjectdef.find_destructor: tprocdef;
var
objdef: tobjectdef;
begin
objdef:=self;
while assigned(objdef) do
begin
result:=objdef.find_procdef_bytype(potype_destructor);
if assigned(result) then
exit;
objdef:=objdef.childof;
end;
result:=nil;
end;
function tobjectdef.implements_any_interfaces: boolean;
begin
result := (ImplementedInterfaces.Count > 0) or
(assigned(childof) and childof.implements_any_interfaces);
end;
function tobjectdef.size : aint;
begin
if objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_dispinterface,odt_objcclass,odt_objcprotocol] then
result:=sizeof(pint)
else
result:=tObjectSymtable(symtable).datasize;
end;
function tobjectdef.alignment:shortint;
begin
if objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_dispinterface,odt_objcclass,odt_objcprotocol] then
alignment:=sizeof(pint)
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(pint) is size and -size }
vmtmethodoffset:=(index+10)*sizeof(pint)+2*sizeof(pint);
odt_objcclass,
odt_objcprotocol:
vmtmethodoffset:=0;
odt_interfacecom,odt_interfacecorba:
vmtmethodoffset:=index*sizeof(pint);
else
{$ifdef WITHDMT}
vmtmethodoffset:=(index+4)*sizeof(pint);
{$else WITHDMT}
vmtmethodoffset:=(index+3)*sizeof(pint);
{$endif WITHDMT}
end;
end;
function tobjectdef.vmt_mangledname : string;
begin
if not(oo_has_vmt in objectoptions) then
Message1(parser_n_object_has_no_vmt,objrealname^);
vmt_mangledname:=make_mangledname('VMT',owner,objname^);
end;
function tobjectdef.needs_inittable : boolean;
begin
case objecttype of
odt_dispinterface,
odt_class :
needs_inittable:=false;
odt_interfacecom:
needs_inittable:=true;
odt_interfacecorba:
needs_inittable:=is_related(interface_iunknown);
odt_object:
needs_inittable:=tObjectSymtable(symtable).needs_init_final;
odt_cppclass,
odt_objcclass,
odt_objcprotocol:
needs_inittable:=false;
else
internalerror(200108267);
end;
end;
function tobjectdef.rtti_mangledname(rt: trttitype): string;
begin
if not(objecttype in [odt_objcclass,odt_objcprotocol]) then
result:=inherited rtti_mangledname(rt)
else
begin
{ necessary in case of a dynamic array of nsobject, or
if an nsobject field appears in a record that needs
init/finalisation }
if rt=initrtti then
begin
result:=voidpointertype.rtti_mangledname(rt);
exit;
end;
if not(target_info.system in systems_objc_nfabi) then
begin
result:=target_asm.labelprefix;
case objecttype of
odt_objcclass:
begin
case rt of
objcclassrtti:
if not(oo_is_classhelper in objectoptions) then
result:=result+'_OBJC_CLASS_'
else
result:=result+'_OBJC_CATEGORY_';
objcmetartti:
if not(oo_is_classhelper in objectoptions) then
result:=result+'_OBJC_METACLASS_'
else
internalerror(2009111511);
else
internalerror(2009092302);
end;
end;
odt_objcprotocol:
result:=result+'_OBJC_PROTOCOL_';
end;
end
else
begin
case objecttype of
odt_objcclass:
begin
if (oo_is_classhelper in objectoptions) and
(rt<>objcclassrtti) then
internalerror(2009111512);
case rt of
objcclassrtti:
if not(oo_is_classhelper in objectoptions) then
result:='_OBJC_CLASS_$_'
else
result:='_OBJC_$_CATEGORY_';
objcmetartti:
result:='_OBJC_METACLASS_$_';
objcclassrortti:
result:=lower(target_asm.labelprefix)+'_OBJC_CLASS_RO_$_';
objcmetarortti:
result:=lower(target_asm.labelprefix)+'_OBJC_METACLASS_RO_$_';
else
internalerror(2009092303);
end;
end;
odt_objcprotocol:
begin
result:=lower(target_asm.labelprefix);
case rt of
objcclassrtti:
result:=result+'_OBJC_PROTOCOL_$_';
objcmetartti:
result:=result+'_OBJC_LABEL_PROTOCOL_$_';
else
internalerror(2009092501);
end;
end;
end;
end;
result:=result+objextname^;
end;
end;
function tobjectdef.members_need_inittable : boolean;
begin
members_need_inittable:=tObjectSymtable(symtable).needs_init_final;
end;
function tobjectdef.find_implemented_interface(aintfdef:tobjectdef):TImplementedInterface;
var
ImplIntf : TImplementedInterface;
i : longint;
begin
result:=nil;
if not assigned(ImplementedInterfaces) then
exit;
for i:=0 to ImplementedInterfaces.Count-1 do
begin
ImplIntf:=TImplementedInterface(ImplementedInterfaces[i]);
if ImplIntf.intfdef=aintfdef then
begin
result:=ImplIntf;
exit;
end;
end;
end;
function tobjectdef.is_publishable : boolean;
begin
is_publishable:=objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_dispinterface];
end;
function tobjectdef.get_next_dispid: longint;
begin
inc(fcurrent_dispid);
result:=fcurrent_dispid;
end;
function tobjectdef.search_enumerator_get: tprocdef;
var
objdef : tobjectdef;
sym : tsym;
i : integer;
pd : tprocdef;
hashedid : THashedIDString;
begin
result:=nil;
objdef:=self;
hashedid.id:='GETENUMERATOR';
while assigned(objdef) do
begin
sym:=tsym(objdef.symtable.FindWithHash(hashedid));
if assigned(sym) and (sym.typ=procsym) then
begin
for i := 0 to Tprocsym(sym).ProcdefList.Count - 1 do
begin
pd := tprocdef(Tprocsym(sym).ProcdefList[i]);
if (pd.proctypeoption = potype_function) and
is_class_or_interface_or_object(pd.returndef) and
(pd.visibility >= vis_public) then
begin
result:=pd;
exit;
end;
end;
end;
objdef:=objdef.childof;
end;
end;
function tobjectdef.search_enumerator_move: tprocdef;
var
objdef : tobjectdef;
sym : tsym;
i : integer;
pd : tprocdef;
hashedid : THashedIDString;
begin
result:=nil;
objdef:=self;
// first search for po_enumerator_movenext method modifier
// then search for public function MoveNext: Boolean
hashedid.id:='MOVENEXT';
while assigned(objdef) do
begin
for i:=0 to objdef.symtable.SymList.Count-1 do
begin
sym:=TSym(objdef.symtable.SymList[i]);
if (sym.typ=procsym) then
begin
pd:=Tprocsym(sym).find_procdef_byoptions([po_enumerator_movenext]);
if assigned(pd) then
begin
result:=pd;
exit;
end;
end;
end;
sym:=tsym(objdef.symtable.FindWithHash(hashedid));
if assigned(sym) and (sym.typ=procsym) then
begin
for i := 0 to Tprocsym(sym).ProcdefList.Count - 1 do
begin
pd := tprocdef(Tprocsym(sym).ProcdefList[i]);
if (pd.proctypeoption = potype_function) and
is_boolean(pd.returndef) and
(pd.minparacount = 0) and
(pd.visibility >= vis_public) then
begin
result:=pd;
exit;
end;
end;
end;
objdef:=objdef.childof;
end;
end;
function tobjectdef.search_enumerator_current: tsym;
var
objdef : tobjectdef;
sym: tsym;
i: integer;
hashedid : THashedIDString;
begin
result:=nil;
objdef:=self;
hashedid.id:='CURRENT';
// first search for ppo_enumerator_current property modifier
// then search for public property Current
while assigned(objdef) do
begin
for i:=0 to objdef.symtable.SymList.Count-1 do
begin
sym:=TSym(objdef.symtable.SymList[i]);
if (sym.typ=propertysym) and (ppo_enumerator_current in tpropertysym(sym).propoptions) then
begin
result:=sym;
exit;
end;
end;
sym:=tsym(objdef.symtable.FindWithHash(hashedid));
if assigned(sym) and (sym.typ=propertysym) and
(sym.visibility >= vis_public) and not tpropertysym(sym).propaccesslist[palt_read].empty then
begin
result:=sym;
exit;
end;
objdef:=objdef.childof;
end;
end;
procedure tobjectdef.register_created_classref_type;
begin
if not classref_created_in_current_module then
begin
classref_created_in_current_module:=true;
current_module.wpoinfo.addcreatedobjtypeforclassref(self);
end;
end;
procedure tobjectdef.register_created_object_type;
begin
if not created_in_current_module then
begin
created_in_current_module:=true;
current_module.wpoinfo.addcreatedobjtype(self);
end;
end;
procedure tobjectdef.register_maybe_created_object_type;
begin
{ if we know it has been created for sure, no need
to also record that it maybe can be created in
this module
}
if not (created_in_current_module) and
not (maybe_created_in_current_module) then
begin
maybe_created_in_current_module:=true;
current_module.wpoinfo.addmaybecreatedbyclassref(self);
end;
end;
procedure tobjectdef.register_vmt_call(index: longint);
begin
if (is_object(self) or is_class(self)) then
current_module.wpoinfo.addcalledvmtentry(self,index);
end;
procedure make_procdef_external(data: tobject; arg: pointer);
var
def: tdef absolute data;
begin
if (def.typ = procdef) then
begin
include(tprocdef(def).procoptions,po_external);
tprocdef(def).forwarddef:=false;
end;
end;
procedure tobjectdef.make_all_methods_external;
begin
self.symtable.deflist.foreachcall(@make_procdef_external,nil);
end;
procedure check_and_finish_msg(data: tobject; arg: pointer);
var
def: tdef absolute data;
pd: tprocdef absolute data;
i,
paracount: longint;
begin
if (def.typ=procdef) then
begin
{ add all messages also under a dummy name to the symtable in
which the objcclass/protocol/category is declared, so they can
be called via id.<name>
}
create_class_helper_for_procdef(pd,nil);
{ we have to wait until now to set the mangled name because it
depends on the (possibly external) class name, which is defined
at the very end. }
if not(po_msgstr in pd.procoptions) then
begin
CGMessagePos(pd.fileinfo,parser_e_objc_requires_msgstr);
{ recover to avoid internalerror later on }
include(pd.procoptions,po_msgstr);
pd.messageinf.str:=stringdup('MissingDeclaration');
end;
{ Mangled name is already set in case this is a copy of
another type. }
if not(po_has_mangledname in pd.procoptions) then
begin
{ check whether the number of formal parameters is correct,
and whether they have valid Objective-C types }
paracount:=0;
for i:=1 to length(pd.messageinf.str^) do
if pd.messageinf.str^[i]=':' then
inc(paracount);
for i:=0 to pd.paras.count-1 do
if not(vo_is_hidden_para in tparavarsym(pd.paras[i]).varoptions) and
not is_array_of_const(tparavarsym(pd.paras[i]).vardef) then
dec(paracount);
if (paracount<>0) then
MessagePos(pd.fileinfo,sym_e_objc_para_mismatch);
pd.setmangledname(pd.objcmangledname);
end
else
{ all checks already done }
exit;
if not(oo_is_external in pd.struct.objectoptions) then
begin
if (po_varargs in pd.procoptions) then
MessagePos(pd.fileinfo,parser_e_varargs_need_cdecl_and_external)
else
begin
{ check for "array of const" parameters }
for i:=0 to pd.parast.symlist.count-1 do
begin
if (tsym(pd.parast.symlist[i]).typ=paravarsym) and
is_array_of_const(tparavarsym(pd.parast.symlist[i]).vardef) then
MessagePos(pd.fileinfo,parser_e_varargs_need_cdecl_and_external);
end;
end;
end;
end;
end;
procedure mark_private_fields_used(data: tobject; arg: pointer);
var
sym: tsym absolute data;
begin
if (sym.typ=fieldvarsym) and
(tfieldvarsym(sym).visibility in [vis_private,vis_strictprivate]) then
sym.IncRefCount;
end;
procedure tobjectdef.finish_objc_data;
begin
self.symtable.DefList.foreachcall(@check_and_finish_msg,nil);
if (oo_is_external in objectoptions) then
self.symtable.SymList.ForEachCall(@mark_private_fields_used,nil);
end;
procedure verify_objc_vardef(data: tobject; arg: pointer);
var
sym: tabstractvarsym absolute data;
res: pboolean absolute arg;
founderrordef: tdef;
begin
if not(tsym(data).typ in [paravarsym,fieldvarsym]) then
exit;
if (sym.typ=paravarsym) and
((vo_is_hidden_para in tparavarsym(sym).varoptions) or
is_array_of_const(tparavarsym(sym).vardef)) then
exit;
if not objcchecktype(sym.vardef,founderrordef) then
begin
MessagePos1(sym.fileinfo,type_e_objc_type_unsupported,founderrordef.typename);
res^:=false;
end;
end;
procedure verify_objc_procdef_paras(data: tobject; arg: pointer);
var
def: tdef absolute data;
res: pboolean absolute arg;
founderrordef: tdef;
begin
if (def.typ<>procdef) then
exit;
{ check parameter types for validity }
tprocdef(def).paras.foreachcall(@verify_objc_vardef,arg);
{ check the result type for validity }
if not objcchecktype(tprocdef(def).returndef,founderrordef) then
begin
MessagePos1(tprocdef(def).funcretsym.fileinfo,type_e_objc_type_unsupported,founderrordef.typename);
res^:=false;
end;
end;
function tobjectdef.check_objc_types: boolean;
begin
{ done in separate step from finish_objc_data, because when
finish_objc_data is called, not all forwarddefs have been resolved
yet and we need to know all types here }
result:=true;
self.symtable.symlist.foreachcall(@verify_objc_vardef,@result);
self.symtable.deflist.foreachcall(@verify_objc_procdef_paras,@result);
end;
procedure do_cpp_import_info(data: tobject; arg: pointer);
var
def: tdef absolute data;
pd: tprocdef absolute data;
begin
if (def.typ=procdef) then
begin
pd.setmangledname(target_info.Cprefix+pd.cplusplusmangledname);
if (oo_is_external in pd.struct.objectoptions) then
begin
{ copied from psub.read_proc }
if assigned(tobjectdef(pd.struct).import_lib) then
current_module.AddExternalImport(tobjectdef(pd.struct).import_lib^,pd.mangledname,0,false,false)
else
begin
{ add import name to external list for DLL scanning }
if tf_has_dllscanner in target_info.flags then
current_module.dllscannerinputlist.Add(pd.mangledname,pd);
end;
end;
end;
end;
procedure tobjectdef.finish_cpp_data;
begin
self.symtable.DefList.ForEachCall(@do_cpp_import_info,nil);
end;
{****************************************************************************
TImplementedInterface
****************************************************************************}
constructor TImplementedInterface.create(aintf: tobjectdef);
begin
inherited create;
intfdef:=aintf;
IOffset:=-1;
IType:=etStandard;
NameMappings:=nil;
procdefs:=nil;
end;
constructor TImplementedInterface.create_deref(d:tderef);
begin
inherited create;
intfdef:=nil;
intfdefderef:=d;
IOffset:=-1;
IType:=etStandard;
NameMappings:=nil;
procdefs:=nil;
end;
destructor TImplementedInterface.destroy;
var
i : longint;
mappedname : pshortstring;
begin
if assigned(NameMappings) then
begin
for i:=0 to NameMappings.Count-1 do
begin
mappedname:=pshortstring(NameMappings[i]);
stringdispose(mappedname);
end;
NameMappings.free;
NameMappings:=nil;
end;
if assigned(procdefs) then
begin
procdefs.free;
procdefs:=nil;
end;
inherited destroy;
end;
procedure TImplementedInterface.buildderef;
begin
intfdefderef.build(intfdef);
end;
procedure TImplementedInterface.deref;
begin
intfdef:=tobjectdef(intfdefderef.resolve);
end;
procedure TImplementedInterface.AddMapping(const origname,newname: string);
begin
if not assigned(NameMappings) then
NameMappings:=TFPHashList.Create;
NameMappings.Add(origname,stringdup(newname));
end;
function TImplementedInterface.GetMapping(const origname: string):string;
var
mappedname : pshortstring;
begin
result:='';
if not assigned(NameMappings) then
exit;
mappedname:=PShortstring(NameMappings.Find(origname));
if assigned(mappedname) then
result:=mappedname^;
end;
procedure TImplementedInterface.AddImplProc(pd:tprocdef);
begin
if not assigned(procdefs) then
procdefs:=TFPObjectList.Create(false);
{ duplicate entries must be stored, because multiple }
{ interfaces can declare methods with the same name }
{ and all of these get their own VMT entry }
procdefs.Add(pd);
end;
function TImplementedInterface.IsImplMergePossible(MergingIntf:TImplementedInterface;out weight: longint): boolean;
var
i : longint;
begin
result:=false;
{ interfaces being implemented through delegation are not mergable (FK) }
if (IType<>etStandard) or (MergingIntf.IType<>etStandard) or not(assigned(ProcDefs)) or not(assigned(MergingIntf.ProcDefs)) then
exit;
weight:=0;
{ empty interface is mergeable }
if ProcDefs.Count=0 then
begin
result:=true;
exit;
end;
{ The interface to merge must at least the number of
procedures of this interface }
if MergingIntf.ProcDefs.Count<ProcDefs.Count then
exit;
for i:=0 to ProcDefs.Count-1 do
begin
if MergingIntf.ProcDefs[i]<>ProcDefs[i] then
exit;
end;
weight:=ProcDefs.Count;
result:=true;
end;
function TImplementedInterface.getcopy:TImplementedInterface;
begin
Result:=TImplementedInterface.Create(nil);
{$warning: this is completely wrong on so many levels...}
{ 1) the procdefs list will be freed once for each copy
2) since the procdefs list owns its elements, those will also be freed for each copy
3) idem for the name mappings
}
Move(pointer(self)^,pointer(result)^,InstanceSize);
end;
{****************************************************************************
TFORWARDDEF
****************************************************************************}
constructor tforwarddef.create(const s:string;const pos:tfileposinfo);
begin
inherited create(forwarddef);
tosymname:=stringdup(s);
forwardpos:=pos;
end;
function tforwarddef.GetTypeName:string;
begin
GetTypeName:='unresolved forward to '+tosymname^;
end;
destructor tforwarddef.destroy;
begin
stringdispose(tosymname);
inherited destroy;
end;
function tforwarddef.getcopy:tstoreddef;
begin
result:=tforwarddef.create(tosymname^, forwardpos);
end;
{****************************************************************************
TUNDEFINEDDEF
****************************************************************************}
constructor tundefineddef.create;
begin
inherited create(undefineddef);
end;
constructor tundefineddef.ppuload(ppufile:tcompilerppufile);
begin
inherited ppuload(undefineddef,ppufile);
end;
function tundefineddef.GetTypeName:string;
begin
GetTypeName:='<undefined type>';
end;
procedure tundefineddef.ppuwrite(ppufile:tcompilerppufile);
begin
inherited ppuwrite(ppufile);
ppufile.writeentry(ibundefineddef);
end;
{****************************************************************************
TERRORDEF
****************************************************************************}
constructor terrordef.create;
begin
inherited create(errordef);
{ prevent consecutive faults }
savesize:=1;
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.typ=objectdef) and
(tobjectdef(def).objecttype=odt_interfacecom);
end;
function is_interfacecorba(def: tdef): boolean;
begin
is_interfacecorba:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_interfacecorba);
end;
function is_interface(def: tdef): boolean;
begin
is_interface:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_interfacecom,odt_interfacecorba]);
end;
function is_dispinterface(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_dispinterface);
end;
function is_class(def: tdef): boolean;
begin
is_class:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_class);
end;
function is_object(def: tdef): boolean;
begin
is_object:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_object);
end;
function is_cppclass(def: tdef): boolean;
begin
is_cppclass:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_cppclass);
end;
function is_objcclass(def: tdef): boolean;
begin
is_objcclass:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_objcclass);
end;
function is_objcclassref(def: tdef): boolean;
begin
is_objcclassref:=
assigned(def) and
(def.typ=classrefdef) and
is_objcclass(tclassrefdef(def).pointeddef);
end;
function is_objcprotocol(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype=odt_objcprotocol);
end;
function is_objccategory(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
{ if used as a forward type }
((tobjectdef(def).objecttype=odt_objccategory) or
{ if used as after it has been resolved }
((tobjectdef(def).objecttype=odt_objcclass) and
(oo_is_classhelper in tobjectdef(def).objectoptions)));
end;
function is_objc_class_or_protocol(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_objcclass,odt_objcprotocol]);
end;
function is_objc_protocol_or_category(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
((tobjectdef(def).objecttype = odt_objcprotocol) or
((tobjectdef(def).objecttype = odt_objcclass) and
(oo_is_classhelper in tobjectdef(def).objectoptions)));
end;
function is_class_or_interface(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_interfacecom,odt_interfacecorba]);
end;
function is_class_or_interface_or_objc(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_objcclass,odt_objcprotocol]);
end;
function is_class_or_interface_or_object(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_object]);
end;
function is_class_or_interface_or_dispinterface(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_dispinterface]);
end;
function is_class_or_interface_or_dispinterface_or_objc(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_interfacecom,odt_interfacecorba,odt_dispinterface,odt_objcclass,odt_objcprotocol]);
end;
function is_class_or_object(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=objectdef) and
(tobjectdef(def).objecttype in [odt_class,odt_object]);
end;
function is_record(def: tdef): boolean;
begin
result:=
assigned(def) and
(def.typ=recorddef);
end;
procedure loadobjctypes;
begin
objc_metaclasstype:=tpointerdef(search_named_unit_globaltype('OBJC','POBJC_CLASS',true).typedef);
objc_superclasstype:=tpointerdef(search_named_unit_globaltype('OBJC','POBJC_SUPER',true).typedef);
objc_idtype:=tpointerdef(search_named_unit_globaltype('OBJC','ID',true).typedef);
objc_seltype:=tpointerdef(search_named_unit_globaltype('OBJC','SEL',true).typedef);
objc_objecttype:=trecorddef(search_named_unit_globaltype('OBJC','OBJC_OBJECT',true).typedef);
end;
procedure maybeloadcocoatypes;
var
tsym: ttypesym;
begin
if assigned(objc_fastenumeration) then
exit;
tsym:=search_named_unit_globaltype('COCOAALL','NSFASTENUMERATIONPROTOCOL',false);
if assigned(tsym) then
objc_fastenumeration:=tobjectdef(tsym.typedef)
else
objc_fastenumeration:=nil;
tsym:=search_named_unit_globaltype('COCOAALL','NSFASTENUMERATIONSTATE',false);
if assigned(tsym) then
objc_fastenumerationstate:=trecorddef(tsym.typedef)
else
objc_fastenumerationstate:=nil;
end;
function use_vectorfpu(def : tdef) : boolean;
begin
{$ifdef x86}
{$define use_vectorfpuimplemented}
use_vectorfpu:=(is_single(def) and (current_settings.fputype in sse_singlescalar)) or
(is_double(def) and (current_settings.fputype in sse_doublescalar));
{$endif x86}
{$ifdef arm}
{$define use_vectorfpuimplemented}
use_vectorfpu:=(current_settings.fputype in vfp_scalar);
{$endif arm}
{$ifndef use_vectorfpuimplemented}
use_vectorfpu:=false;
{$endif}
end;
end.
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