mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 10:31:44 +01:00
2fdd3e2d0a
all needed information for iso compatible variant records * new for variant records as required by iso pascal + tests git-svn-id: trunk@24241 -
1607 lines
64 KiB
ObjectPascal
1607 lines
64 KiB
ObjectPascal
{
|
|
Copyright (c) 1998-2002 by Florian Klaempfl
|
|
|
|
Does object types for Free Pascal
|
|
|
|
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 pdecobj;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
cclasses,
|
|
globtype,symconst,symtype,symdef;
|
|
|
|
{ parses a object declaration }
|
|
function object_dec(objecttype:tobjecttyp;const n:tidstring;objsym:tsym;genericdef:tstoreddef;genericlist:TFPObjectList;fd : tobjectdef;helpertype:thelpertype) : tobjectdef;
|
|
|
|
{ parses a (class) method declaration }
|
|
function method_dec(astruct: tabstractrecorddef; is_classdef: boolean): tprocdef;
|
|
|
|
function class_constructor_head(astruct: tabstractrecorddef):tprocdef;
|
|
function class_destructor_head(astruct: tabstractrecorddef):tprocdef;
|
|
function constructor_head:tprocdef;
|
|
function destructor_head:tprocdef;
|
|
procedure struct_property_dec(is_classproperty:boolean);
|
|
|
|
implementation
|
|
|
|
uses
|
|
sysutils,cutils,
|
|
globals,verbose,systems,tokens,
|
|
symbase,symsym,symtable,symcreat,defcmp,
|
|
node,nld,nmem,ncon,ncnv,ncal,
|
|
fmodule,scanner,
|
|
pbase,pexpr,pdecsub,pdecvar,ptype,pdecl,pgenutil,ppu,
|
|
{$ifdef jvm}
|
|
pjvm,
|
|
{$endif}
|
|
parabase
|
|
;
|
|
|
|
const
|
|
{ Please leave this here, this module should NOT use
|
|
these variables.
|
|
Declaring it as string here results in an error when compiling (PFV) }
|
|
current_procinfo = 'error';
|
|
|
|
var
|
|
current_objectdef : tobjectdef absolute current_structdef;
|
|
|
|
|
|
procedure constr_destr_finish_head(pd: tprocdef; const astruct: tabstractrecorddef);
|
|
begin
|
|
case astruct.typ of
|
|
recorddef:
|
|
begin
|
|
parse_record_proc_directives(pd);
|
|
// we can't add hidden params here because record is not yet defined
|
|
// and therefore record size which has influence on paramter passing rules may change too
|
|
// look at record_dec to see where calling conventions are applied (issue #0021044)
|
|
handle_calling_convention(pd,[hcc_check]);
|
|
end;
|
|
objectdef:
|
|
begin
|
|
parse_object_proc_directives(pd);
|
|
handle_calling_convention(pd);
|
|
end
|
|
else
|
|
internalerror(2011040502);
|
|
end;
|
|
|
|
{ add definition to procsym }
|
|
proc_add_definition(pd);
|
|
|
|
{ add procdef options to objectdef options }
|
|
if (po_virtualmethod in pd.procoptions) then
|
|
include(astruct.objectoptions,oo_has_virtual);
|
|
|
|
maybe_parse_hint_directives(pd);
|
|
end;
|
|
|
|
|
|
function class_constructor_head(astruct: tabstractrecorddef):tprocdef;
|
|
var
|
|
pd : tprocdef;
|
|
begin
|
|
result:=nil;
|
|
consume(_CONSTRUCTOR);
|
|
{ must be at same level as in implementation }
|
|
parse_proc_head(current_structdef,potype_class_constructor,pd);
|
|
if not assigned(pd) then
|
|
begin
|
|
consume(_SEMICOLON);
|
|
exit;
|
|
end;
|
|
pd.calcparas;
|
|
if (pd.maxparacount>0) then
|
|
Message(parser_e_no_paras_for_class_constructor);
|
|
consume(_SEMICOLON);
|
|
include(astruct.objectoptions,oo_has_class_constructor);
|
|
current_module.flags:=current_module.flags or uf_classinits;
|
|
{ no return value }
|
|
pd.returndef:=voidtype;
|
|
constr_destr_finish_head(pd,astruct);
|
|
result:=pd;
|
|
end;
|
|
|
|
function constructor_head:tprocdef;
|
|
var
|
|
pd : tprocdef;
|
|
begin
|
|
result:=nil;
|
|
consume(_CONSTRUCTOR);
|
|
{ must be at same level as in implementation }
|
|
parse_proc_head(current_structdef,potype_constructor,pd);
|
|
if not assigned(pd) then
|
|
begin
|
|
consume(_SEMICOLON);
|
|
exit;
|
|
end;
|
|
if (cs_constructor_name in current_settings.globalswitches) and
|
|
(pd.procsym.name<>'INIT') then
|
|
Message(parser_e_constructorname_must_be_init);
|
|
consume(_SEMICOLON);
|
|
include(current_structdef.objectoptions,oo_has_constructor);
|
|
{ Set return type, class and record constructors return the
|
|
created instance, helper types return the extended type,
|
|
object constructors return boolean }
|
|
if is_class(pd.struct) or
|
|
is_record(pd.struct) or
|
|
is_javaclass(pd.struct) then
|
|
pd.returndef:=pd.struct
|
|
else
|
|
if is_objectpascal_helper(pd.struct) then
|
|
pd.returndef:=tobjectdef(pd.struct).extendeddef
|
|
else
|
|
{$ifdef CPU64bitaddr}
|
|
pd.returndef:=bool64type;
|
|
{$else CPU64bitaddr}
|
|
pd.returndef:=bool32type;
|
|
{$endif CPU64bitaddr}
|
|
constr_destr_finish_head(pd,pd.struct);
|
|
result:=pd;
|
|
end;
|
|
|
|
|
|
procedure struct_property_dec(is_classproperty:boolean);
|
|
var
|
|
p : tpropertysym;
|
|
begin
|
|
{ check for a class, record or helper }
|
|
if not((is_class_or_interface_or_dispinterface(current_structdef) or is_record(current_structdef) or
|
|
is_objectpascal_helper(current_structdef) or is_java_class_or_interface(current_structdef)) or
|
|
(not(m_tp7 in current_settings.modeswitches) and (is_object(current_structdef)))) then
|
|
Message(parser_e_syntax_error);
|
|
consume(_PROPERTY);
|
|
p:=read_property_dec(is_classproperty,current_structdef);
|
|
consume(_SEMICOLON);
|
|
if try_to_consume(_DEFAULT) then
|
|
begin
|
|
if oo_has_default_property in current_structdef.objectoptions then
|
|
message(parser_e_only_one_default_property);
|
|
include(current_structdef.objectoptions,oo_has_default_property);
|
|
include(p.propoptions,ppo_defaultproperty);
|
|
if not(ppo_hasparameters in p.propoptions) then
|
|
message(parser_e_property_need_paras);
|
|
if (token=_COLON) then
|
|
begin
|
|
Message(parser_e_field_not_allowed_here);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
consume(_SEMICOLON);
|
|
end;
|
|
{ parse possible enumerator modifier }
|
|
if try_to_consume(_ENUMERATOR) then
|
|
begin
|
|
if (token = _ID) then
|
|
begin
|
|
if pattern='CURRENT' then
|
|
begin
|
|
if oo_has_enumerator_current in current_structdef.objectoptions then
|
|
message(parser_e_only_one_enumerator_current);
|
|
if not p.propaccesslist[palt_read].empty then
|
|
begin
|
|
include(current_structdef.objectoptions,oo_has_enumerator_current);
|
|
include(p.propoptions,ppo_enumerator_current);
|
|
end
|
|
else
|
|
Message(parser_e_enumerator_current_is_not_valid) // property has no reader
|
|
end
|
|
else
|
|
Message1(parser_e_invalid_enumerator_identifier, pattern);
|
|
consume(token);
|
|
end
|
|
else
|
|
Message(parser_e_enumerator_identifier_required);
|
|
consume(_SEMICOLON);
|
|
end;
|
|
{ hint directives, these can be separated by semicolons here,
|
|
that needs to be handled here with a loop (PFV) }
|
|
while try_consume_hintdirective(p.symoptions,p.deprecatedmsg) do
|
|
Consume(_SEMICOLON);
|
|
end;
|
|
|
|
|
|
function class_destructor_head(astruct: tabstractrecorddef):tprocdef;
|
|
var
|
|
pd : tprocdef;
|
|
begin
|
|
result:=nil;
|
|
consume(_DESTRUCTOR);
|
|
parse_proc_head(current_structdef,potype_class_destructor,pd);
|
|
if not assigned(pd) then
|
|
begin
|
|
consume(_SEMICOLON);
|
|
exit;
|
|
end;
|
|
pd.calcparas;
|
|
if (pd.maxparacount>0) then
|
|
Message(parser_e_no_paras_for_class_destructor);
|
|
consume(_SEMICOLON);
|
|
include(astruct.objectoptions,oo_has_class_destructor);
|
|
current_module.flags:=current_module.flags or uf_classinits;
|
|
{ no return value }
|
|
pd.returndef:=voidtype;
|
|
constr_destr_finish_head(pd,astruct);
|
|
result:=pd;
|
|
end;
|
|
|
|
function destructor_head:tprocdef;
|
|
var
|
|
pd : tprocdef;
|
|
begin
|
|
result:=nil;
|
|
consume(_DESTRUCTOR);
|
|
parse_proc_head(current_structdef,potype_destructor,pd);
|
|
if not assigned(pd) then
|
|
begin
|
|
consume(_SEMICOLON);
|
|
exit;
|
|
end;
|
|
if (cs_constructor_name in current_settings.globalswitches) and
|
|
(pd.procsym.name<>'DONE') then
|
|
Message(parser_e_destructorname_must_be_done);
|
|
pd.calcparas;
|
|
if not(pd.maxparacount=0) and
|
|
(m_fpc in current_settings.modeswitches) then
|
|
Message(parser_e_no_paras_for_destructor);
|
|
consume(_SEMICOLON);
|
|
include(current_structdef.objectoptions,oo_has_destructor);
|
|
include(current_structdef.objectoptions,oo_has_new_destructor);
|
|
{ no return value }
|
|
pd.returndef:=voidtype;
|
|
constr_destr_finish_head(pd,pd.struct);
|
|
result:=pd;
|
|
end;
|
|
|
|
|
|
procedure setinterfacemethodoptions;
|
|
var
|
|
i : longint;
|
|
def : tdef;
|
|
begin
|
|
include(current_structdef.objectoptions,oo_has_virtual);
|
|
for i:=0 to current_structdef.symtable.DefList.count-1 do
|
|
begin
|
|
def:=tdef(current_structdef.symtable.DefList[i]);
|
|
if assigned(def) and
|
|
(def.typ=procdef) then
|
|
begin
|
|
include(tprocdef(def).procoptions,po_virtualmethod);
|
|
tprocdef(def).forwarddef:=false;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure setobjcclassmethodoptions;
|
|
var
|
|
i : longint;
|
|
def : tdef;
|
|
begin
|
|
for i:=0 to current_structdef.symtable.DefList.count-1 do
|
|
begin
|
|
def:=tdef(current_structdef.symtable.DefList[i]);
|
|
if assigned(def) and
|
|
(def.typ=procdef) then
|
|
begin
|
|
include(tprocdef(def).procoptions,po_virtualmethod);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure handleImplementedInterface(intfdef : tobjectdef);
|
|
begin
|
|
if not is_interface(intfdef) then
|
|
begin
|
|
Message1(type_e_interface_type_expected,intfdef.typename);
|
|
exit;
|
|
end;
|
|
if ([oo_is_forward,oo_is_formal] * intfdef.objectoptions <> []) then
|
|
begin
|
|
Message1(parser_e_forward_intf_declaration_must_be_resolved,intfdef.objrealname^);
|
|
exit;
|
|
end;
|
|
if current_objectdef.find_implemented_interface(intfdef)<>nil then
|
|
Message1(sym_e_duplicate_id,intfdef.objname^)
|
|
else
|
|
begin
|
|
{ allocate and prepare the GUID only if the class
|
|
implements some interfaces. }
|
|
if current_objectdef.ImplementedInterfaces.count = 0 then
|
|
current_objectdef.prepareguid;
|
|
current_objectdef.ImplementedInterfaces.Add(TImplementedInterface.Create(intfdef));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure handleImplementedProtocolOrJavaIntf(intfdef : tobjectdef);
|
|
begin
|
|
intfdef:=find_real_class_definition(intfdef,false);
|
|
case current_objectdef.objecttype of
|
|
odt_objcclass,
|
|
odt_objccategory,
|
|
odt_objcprotocol:
|
|
if not is_objcprotocol(intfdef) then
|
|
begin
|
|
Message1(type_e_protocol_type_expected,intfdef.typename);
|
|
exit;
|
|
end;
|
|
odt_javaclass,
|
|
odt_interfacejava:
|
|
if not is_javainterface(intfdef) then
|
|
begin
|
|
Message1(type_e_interface_type_expected,intfdef.typename);
|
|
exit
|
|
end;
|
|
else
|
|
internalerror(2011010807);
|
|
end;
|
|
if ([oo_is_forward,oo_is_formal] * intfdef.objectoptions <> []) then
|
|
begin
|
|
Message1(parser_e_forward_intf_declaration_must_be_resolved,intfdef.objrealname^);
|
|
exit;
|
|
end;
|
|
if current_objectdef.find_implemented_interface(intfdef)<>nil then
|
|
Message1(sym_e_duplicate_id,intfdef.objname^)
|
|
else
|
|
begin
|
|
current_objectdef.ImplementedInterfaces.Add(TImplementedInterface.Create(intfdef));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure readImplementedInterfacesAndProtocols(intf: boolean);
|
|
var
|
|
hdef : tdef;
|
|
begin
|
|
while try_to_consume(_COMMA) do
|
|
begin
|
|
{ use single_type instead of id_type for specialize support }
|
|
single_type(hdef,[stoAllowSpecialization,stoParseClassParent]);
|
|
if (hdef.typ<>objectdef) then
|
|
begin
|
|
if intf then
|
|
Message1(type_e_interface_type_expected,hdef.typename)
|
|
else
|
|
Message1(type_e_protocol_type_expected,hdef.typename);
|
|
continue;
|
|
end;
|
|
if intf then
|
|
handleImplementedInterface(tobjectdef(hdef))
|
|
else
|
|
handleImplementedProtocolOrJavaIntf(tobjectdef(hdef));
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure readinterfaceiid;
|
|
var
|
|
p : tnode;
|
|
valid : boolean;
|
|
begin
|
|
p:=comp_expr(true,false);
|
|
if p.nodetype=stringconstn then
|
|
begin
|
|
stringdispose(current_objectdef.iidstr);
|
|
current_objectdef.iidstr:=stringdup(strpas(tstringconstnode(p).value_str));
|
|
valid:=string2guid(current_objectdef.iidstr^,current_objectdef.iidguid^);
|
|
if (current_objectdef.objecttype in [odt_interfacecom,odt_dispinterface]) and
|
|
not valid then
|
|
Message(parser_e_improper_guid_syntax);
|
|
include(current_structdef.objectoptions,oo_has_valid_guid);
|
|
end
|
|
else
|
|
Message(parser_e_illegal_expression);
|
|
p.free;
|
|
end;
|
|
|
|
procedure get_cpp_or_java_class_external_status(od: tobjectdef);
|
|
var
|
|
hs: string;
|
|
begin
|
|
{ C++ classes can be external -> all methods inside are external
|
|
(defined at the class level instead of per method, so that you cannot
|
|
define some methods as external and some not)
|
|
}
|
|
if try_to_consume(_EXTERNAL) then
|
|
begin
|
|
hs:='';
|
|
if token in [_CSTRING,_CWSTRING,_CCHAR,_CWCHAR] then
|
|
begin
|
|
{ Always add library prefix and suffix to create an uniform name }
|
|
hs:=get_stringconst;
|
|
if ExtractFileExt(hs)='' then
|
|
hs:=ChangeFileExt(hs,target_info.sharedlibext);
|
|
if Copy(hs,1,length(target_info.sharedlibprefix))<>target_info.sharedlibprefix then
|
|
hs:=target_info.sharedlibprefix+hs;
|
|
end;
|
|
if hs<>'' then
|
|
begin
|
|
{ the JVM expects java/lang/Object rather than java.lang.Object }
|
|
if target_info.system in systems_jvm then
|
|
Replace(hs,'.','/');
|
|
stringdispose(od.import_lib);
|
|
od.import_lib:=stringdup(hs);
|
|
end;
|
|
{ check if we shall use another name for the class }
|
|
if try_to_consume(_NAME) then
|
|
od.objextname:=stringdup(get_stringconst)
|
|
else
|
|
od.objextname:=stringdup(od.objrealname^);
|
|
include(od.objectoptions,oo_is_external);
|
|
end
|
|
else
|
|
begin
|
|
od.objextname:=stringdup(od.objrealname^);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure get_objc_class_or_protocol_external_status(od: tobjectdef);
|
|
begin
|
|
{ Objective-C classes can be external -> all messages inside are
|
|
external (defined at the class level instead of per method, so
|
|
that you cannot define some methods as external and some not)
|
|
}
|
|
if try_to_consume(_EXTERNAL) then
|
|
begin
|
|
if try_to_consume(_NAME) then
|
|
od.objextname:=stringdup(get_stringconst)
|
|
else
|
|
{ the external name doesn't matter for formally declared
|
|
classes, and allowing to specify one would mean that we would
|
|
have to check it for consistency with the actual definition
|
|
later on }
|
|
od.objextname:=stringdup(od.objrealname^);
|
|
include(od.objectoptions,oo_is_external);
|
|
end
|
|
else
|
|
od.objextname:=stringdup(od.objrealname^);
|
|
end;
|
|
|
|
|
|
procedure parse_object_options;
|
|
var
|
|
gotexternal: boolean;
|
|
begin
|
|
case current_objectdef.objecttype of
|
|
odt_object,odt_class,
|
|
odt_javaclass:
|
|
begin
|
|
gotexternal:=false;
|
|
while true do
|
|
begin
|
|
if try_to_consume(_ABSTRACT) then
|
|
include(current_structdef.objectoptions,oo_is_abstract)
|
|
else
|
|
if try_to_consume(_SEALED) then
|
|
include(current_structdef.objectoptions,oo_is_sealed)
|
|
else if (current_objectdef.objecttype=odt_javaclass) and
|
|
(token=_ID) and
|
|
(idtoken=_EXTERNAL) then
|
|
begin
|
|
get_cpp_or_java_class_external_status(current_objectdef);
|
|
gotexternal:=true;
|
|
end
|
|
else
|
|
break;
|
|
end;
|
|
{ don't use <=, because there's a bug in the 2.6.0 SPARC code
|
|
generator regarding handling this expression }
|
|
if ([oo_is_abstract, oo_is_sealed] * current_structdef.objectoptions) = [oo_is_abstract, oo_is_sealed] then
|
|
Message(parser_e_abstract_and_sealed_conflict);
|
|
{ set default external name in case of no external directive }
|
|
if (current_objectdef.objecttype=odt_javaclass) and
|
|
not gotexternal then
|
|
get_cpp_or_java_class_external_status(current_objectdef)
|
|
end;
|
|
odt_cppclass,
|
|
odt_interfacejava:
|
|
get_cpp_or_java_class_external_status(current_objectdef);
|
|
odt_objcclass,odt_objcprotocol,odt_objccategory:
|
|
get_objc_class_or_protocol_external_status(current_objectdef);
|
|
odt_helper: ; // nothing
|
|
end;
|
|
end;
|
|
|
|
procedure parse_parent_classes;
|
|
var
|
|
intfchildof,
|
|
childof : tobjectdef;
|
|
hdef : tdef;
|
|
hasparentdefined : boolean;
|
|
begin
|
|
childof:=nil;
|
|
intfchildof:=nil;
|
|
hasparentdefined:=false;
|
|
|
|
{ reads the parent class }
|
|
if (token=_LKLAMMER) or
|
|
is_objccategory(current_structdef) then
|
|
begin
|
|
consume(_LKLAMMER);
|
|
{ use single_type instead of id_type for specialize support }
|
|
single_type(hdef,[stoAllowSpecialization, stoParseClassParent]);
|
|
if (not assigned(hdef)) or
|
|
(hdef.typ<>objectdef) then
|
|
begin
|
|
if assigned(hdef) then
|
|
Message1(type_e_class_type_expected,hdef.typename)
|
|
else if is_objccategory(current_structdef) then
|
|
{ a category must specify the class to extend }
|
|
Message(type_e_objcclass_type_expected);
|
|
end
|
|
else
|
|
begin
|
|
childof:=tobjectdef(hdef);
|
|
{ a mix of class, interfaces, objects and cppclasses
|
|
isn't allowed }
|
|
case current_objectdef.objecttype of
|
|
odt_class,
|
|
odt_javaclass:
|
|
if (childof.objecttype<>current_objectdef.objecttype) then
|
|
begin
|
|
if (is_interface(childof) and
|
|
is_class(current_objectdef)) or
|
|
(is_javainterface(childof) and
|
|
is_javaclass(current_objectdef)) then
|
|
begin
|
|
{ we insert the interface after the child
|
|
is set, see below
|
|
}
|
|
intfchildof:=childof;
|
|
childof:=class_tobject;
|
|
end
|
|
else
|
|
Message(parser_e_mix_of_classes_and_objects);
|
|
end
|
|
else
|
|
if oo_is_sealed in childof.objectoptions then
|
|
Message1(parser_e_sealed_descendant,childof.typename)
|
|
else
|
|
childof:=find_real_class_definition(childof,true);
|
|
odt_interfacecorba,
|
|
odt_interfacecom:
|
|
begin
|
|
if not(is_interface(childof)) then
|
|
Message(parser_e_mix_of_classes_and_objects);
|
|
current_objectdef.objecttype:=childof.objecttype;
|
|
end;
|
|
odt_cppclass:
|
|
if not(is_cppclass(childof)) then
|
|
Message(parser_e_mix_of_classes_and_objects);
|
|
odt_objcclass:
|
|
if not(is_objcclass(childof) or
|
|
is_objccategory(childof)) then
|
|
begin
|
|
if is_objcprotocol(childof) then
|
|
begin
|
|
if not(oo_is_classhelper in current_structdef.objectoptions) then
|
|
begin
|
|
intfchildof:=childof;
|
|
childof:=nil;
|
|
CGMessage(parser_h_no_objc_parent);
|
|
end
|
|
else
|
|
{ a category must specify the class to extend }
|
|
CGMessage(type_e_objcclass_type_expected);
|
|
end
|
|
else
|
|
Message(parser_e_mix_of_classes_and_objects);
|
|
end
|
|
else
|
|
childof:=find_real_class_definition(childof,true);
|
|
odt_objcprotocol:
|
|
begin
|
|
if not(is_objcprotocol(childof)) then
|
|
Message(parser_e_mix_of_classes_and_objects);
|
|
intfchildof:=childof;
|
|
childof:=nil;
|
|
end;
|
|
odt_interfacejava:
|
|
begin
|
|
if not(is_javainterface(childof)) then
|
|
Message(parser_e_mix_of_classes_and_objects);
|
|
intfchildof:=find_real_class_definition(childof,true);
|
|
childof:=nil;
|
|
end;
|
|
odt_object:
|
|
if not(is_object(childof)) then
|
|
Message(parser_e_mix_of_classes_and_objects)
|
|
else
|
|
if oo_is_sealed in childof.objectoptions then
|
|
Message1(parser_e_sealed_descendant,childof.typename);
|
|
odt_dispinterface:
|
|
Message(parser_e_dispinterface_cant_have_parent);
|
|
odt_helper:
|
|
if not is_objectpascal_helper(childof) then
|
|
begin
|
|
Message(type_e_helper_type_expected);
|
|
childof:=nil;
|
|
end;
|
|
end;
|
|
end;
|
|
hasparentdefined:=true;
|
|
end;
|
|
|
|
{ if no parent class, then a class get tobject as parent }
|
|
if not assigned(childof) then
|
|
begin
|
|
case current_objectdef.objecttype of
|
|
odt_class:
|
|
if current_objectdef<>class_tobject then
|
|
childof:=class_tobject;
|
|
odt_interfacecom:
|
|
if current_objectdef<>interface_iunknown then
|
|
childof:=interface_iunknown;
|
|
odt_dispinterface:
|
|
childof:=interface_idispatch;
|
|
odt_objcclass:
|
|
CGMessage(parser_h_no_objc_parent);
|
|
odt_javaclass:
|
|
{ inherit from TObject by default for compatibility }
|
|
if current_objectdef<>java_jlobject then
|
|
childof:=class_tobject;
|
|
end;
|
|
end;
|
|
|
|
if assigned(childof) then
|
|
begin
|
|
{ Forbid not completly defined objects to be used as parents. This will
|
|
also prevent circular loops of classes, because we set the forward flag
|
|
at the start of the new definition and will reset it below after the
|
|
parent has been set }
|
|
if (oo_is_forward in childof.objectoptions) then
|
|
Message1(parser_e_forward_declaration_must_be_resolved,childof.objrealname^)
|
|
else if not(oo_is_formal in childof.objectoptions) then
|
|
current_objectdef.set_parent(childof)
|
|
else
|
|
Message1(sym_e_formal_class_not_resolved,childof.objrealname^);
|
|
end;
|
|
|
|
{ remove forward flag, is resolved }
|
|
exclude(current_structdef.objectoptions,oo_is_forward);
|
|
|
|
if hasparentdefined then
|
|
begin
|
|
if current_objectdef.objecttype in [odt_class,odt_objcclass,odt_objcprotocol,odt_javaclass,odt_interfacejava] then
|
|
begin
|
|
if assigned(intfchildof) then
|
|
if current_objectdef.objecttype=odt_class then
|
|
handleImplementedInterface(intfchildof)
|
|
else
|
|
handleImplementedProtocolOrJavaIntf(intfchildof);
|
|
readImplementedInterfacesAndProtocols(current_objectdef.objecttype=odt_class);
|
|
end;
|
|
consume(_RKLAMMER);
|
|
end;
|
|
end;
|
|
|
|
procedure parse_extended_type(helpertype:thelpertype);
|
|
|
|
procedure validate_extendeddef_typehelper(var def:tdef);
|
|
begin
|
|
if def.typ in [undefineddef,procvardef,procdef,objectdef,recorddef,
|
|
filedef,classrefdef,abstractdef,forwarddef,formaldef] then
|
|
begin
|
|
Message1(type_e_type_not_allowed_for_type_helper,def.typename);
|
|
def:=generrordef;
|
|
end;
|
|
end;
|
|
|
|
procedure check_inheritance_record_type_helper(var def:tdef);
|
|
begin
|
|
if (def.typ<>errordef) and assigned(current_objectdef.childof) then
|
|
begin
|
|
if def<>current_objectdef.childof.extendeddef then
|
|
begin
|
|
Message1(type_e_record_helper_must_extend_same_record,current_objectdef.childof.extendeddef.typename);
|
|
def:=generrordef;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
var
|
|
hdef: tdef;
|
|
begin
|
|
if not is_objectpascal_helper(current_structdef) then
|
|
Internalerror(2011021103);
|
|
if helpertype=ht_none then
|
|
Internalerror(2011021001);
|
|
|
|
consume(_FOR);
|
|
single_type(hdef,[stoParseClassParent]);
|
|
if not assigned(hdef) or (hdef.typ=errordef) then
|
|
begin
|
|
case helpertype of
|
|
ht_class:
|
|
Message1(type_e_class_type_expected,hdef.typename);
|
|
ht_record:
|
|
Message(type_e_record_type_expected);
|
|
ht_type:
|
|
Message1(type_e_type_id_expected,hdef.typename);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
case helpertype of
|
|
ht_class:
|
|
if (hdef.typ<>objectdef) or
|
|
not is_class(hdef) then
|
|
Message1(type_e_class_type_expected,hdef.typename)
|
|
else
|
|
begin
|
|
{ a class helper must extend the same class or a subclass
|
|
of the class extended by the parent class helper }
|
|
if assigned(current_objectdef.childof) then
|
|
begin
|
|
if not is_class(current_objectdef.childof.extendeddef) then
|
|
Internalerror(2011021101);
|
|
if not hdef.is_related(current_objectdef.childof.extendeddef) then
|
|
Message1(type_e_class_helper_must_extend_subclass,current_objectdef.childof.extendeddef.typename);
|
|
end;
|
|
end;
|
|
ht_record:
|
|
if (hdef.typ=objectdef) or
|
|
(
|
|
{ primitive types are allowed for record helpers in mode
|
|
delphi }
|
|
(hdef.typ<>recorddef) and
|
|
not (m_delphi in current_settings.modeswitches)
|
|
) then
|
|
Message1(type_e_record_type_expected,hdef.typename)
|
|
else
|
|
begin
|
|
if hdef.typ<>recorddef then
|
|
{ this is a primitive type in mode delphi, so validate
|
|
the def }
|
|
validate_extendeddef_typehelper(hdef);
|
|
{ a record helper must extend the same record as the
|
|
parent helper }
|
|
check_inheritance_record_type_helper(hdef);
|
|
end;
|
|
ht_type:
|
|
begin
|
|
validate_extendeddef_typehelper(hdef);
|
|
{ a type helper must extend the same type as the
|
|
parent helper }
|
|
check_inheritance_record_type_helper(hdef);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
if assigned(hdef) then
|
|
current_objectdef.extendeddef:=hdef
|
|
else
|
|
current_objectdef.extendeddef:=generrordef;
|
|
end;
|
|
|
|
procedure parse_guid;
|
|
begin
|
|
{ read GUID }
|
|
if (current_objectdef.objecttype in [odt_interfacecom,odt_interfacecorba,odt_dispinterface]) and
|
|
try_to_consume(_LECKKLAMMER) then
|
|
begin
|
|
readinterfaceiid;
|
|
consume(_RECKKLAMMER);
|
|
end
|
|
else if (current_objectdef.objecttype=odt_dispinterface) then
|
|
message(parser_e_dispinterface_needs_a_guid);
|
|
end;
|
|
|
|
|
|
function method_dec(astruct: tabstractrecorddef; is_classdef: boolean): tprocdef;
|
|
|
|
procedure chkobjc(pd: tprocdef);
|
|
begin
|
|
if is_objc_class_or_protocol(pd.struct) then
|
|
begin
|
|
include(pd.procoptions,po_objc);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure chkjava(pd: tprocdef);
|
|
begin
|
|
{$ifdef jvm}
|
|
if is_java_class_or_interface(pd.struct) then
|
|
begin
|
|
{ mark all non-virtual instance methods as "virtual; final;",
|
|
because
|
|
a) that's the only way to guarantee "non-virtual" behaviour
|
|
(other than making them class methods with an explicit self
|
|
pointer, but that causes problems with interface mappings
|
|
and procvars)
|
|
b) if we don't mark them virtual, they don't get added to the
|
|
vmt and we can't check whether child classes try to override
|
|
them
|
|
}
|
|
if is_javaclass(pd.struct) then
|
|
begin
|
|
if not(po_virtualmethod in pd.procoptions) and
|
|
not(po_classmethod in pd.procoptions) then
|
|
begin
|
|
include(pd.procoptions,po_virtualmethod);
|
|
include(pd.procoptions,po_finalmethod);
|
|
include(pd.procoptions,po_java_nonvirtual);
|
|
end
|
|
else if [po_virtualmethod,po_classmethod]<=pd.procoptions then
|
|
begin
|
|
if po_staticmethod in pd.procoptions then
|
|
Message(type_e_java_class_method_not_static_virtual);
|
|
end;
|
|
end;
|
|
end;
|
|
{$endif}
|
|
end;
|
|
|
|
|
|
procedure chkcpp(pd:tprocdef);
|
|
begin
|
|
{ nothing currently }
|
|
end;
|
|
|
|
var
|
|
oldparse_only: boolean;
|
|
begin
|
|
case token of
|
|
_PROCEDURE,
|
|
_FUNCTION:
|
|
begin
|
|
if (astruct.symtable.currentvisibility=vis_published) and
|
|
not(oo_can_have_published in astruct.objectoptions) then
|
|
Message(parser_e_cant_have_published);
|
|
|
|
oldparse_only:=parse_only;
|
|
parse_only:=true;
|
|
result:=parse_proc_dec(is_classdef,astruct);
|
|
|
|
{ this is for error recovery as well as forward }
|
|
{ interface mappings, i.e. mapping to a method }
|
|
{ which isn't declared yet }
|
|
if assigned(result) then
|
|
begin
|
|
parse_object_proc_directives(result);
|
|
|
|
{ check if dispid is set }
|
|
if is_dispinterface(result.struct) and not (po_dispid in result.procoptions) then
|
|
begin
|
|
result.dispid:=tobjectdef(result.struct).get_next_dispid;
|
|
include(result.procoptions, po_dispid);
|
|
end;
|
|
|
|
{ all Macintosh Object Pascal methods are virtual. }
|
|
{ this can't be a class method, because macpas mode }
|
|
{ has no m_class }
|
|
if (m_mac in current_settings.modeswitches) then
|
|
include(result.procoptions,po_virtualmethod);
|
|
|
|
{ for record and type helpers only static class methods are
|
|
allowed }
|
|
if is_objectpascal_helper(astruct) and
|
|
(tobjectdef(astruct).extendeddef.typ<>objectdef) and
|
|
is_classdef and not (po_staticmethod in result.procoptions) then
|
|
MessagePos(result.fileinfo,parser_e_class_methods_only_static_in_records);
|
|
|
|
handle_calling_convention(result);
|
|
|
|
{ add definition to procsym }
|
|
proc_add_definition(result);
|
|
|
|
{ add procdef options to objectdef options }
|
|
if (po_msgint in result.procoptions) then
|
|
include(astruct.objectoptions,oo_has_msgint);
|
|
if (po_msgstr in result.procoptions) then
|
|
include(astruct.objectoptions,oo_has_msgstr);
|
|
if (po_virtualmethod in result.procoptions) then
|
|
include(astruct.objectoptions,oo_has_virtual);
|
|
|
|
chkcpp(result);
|
|
chkobjc(result);
|
|
chkjava(result);
|
|
end;
|
|
|
|
maybe_parse_hint_directives(result);
|
|
|
|
parse_only:=oldparse_only;
|
|
end;
|
|
_CONSTRUCTOR :
|
|
begin
|
|
if (astruct.symtable.currentvisibility=vis_published) and
|
|
not(oo_can_have_published in astruct.objectoptions) then
|
|
Message(parser_e_cant_have_published);
|
|
|
|
if not is_classdef and not(astruct.symtable.currentvisibility in [vis_public,vis_published]) then
|
|
Message(parser_w_constructor_should_be_public);
|
|
|
|
if is_interface(astruct) then
|
|
Message(parser_e_no_con_des_in_interfaces);
|
|
|
|
{ Objective-C does not know the concept of a constructor }
|
|
if is_objc_class_or_protocol(astruct) then
|
|
Message(parser_e_objc_no_constructor_destructor);
|
|
|
|
if is_objectpascal_helper(astruct) then
|
|
if is_classdef then
|
|
{ class constructors are not allowed in class helpers }
|
|
Message(parser_e_no_class_constructor_in_helpers);
|
|
|
|
{ only 1 class constructor is allowed }
|
|
if is_classdef and (oo_has_class_constructor in astruct.objectoptions) then
|
|
Message1(parser_e_only_one_class_constructor_allowed, astruct.objrealname^);
|
|
|
|
oldparse_only:=parse_only;
|
|
parse_only:=true;
|
|
if is_classdef then
|
|
result:=class_constructor_head(current_structdef)
|
|
else
|
|
begin
|
|
result:=constructor_head;
|
|
if is_objectpascal_helper(astruct) and
|
|
(tobjectdef(astruct).extendeddef.typ<>objectdef) and
|
|
(result.minparacount=0) then
|
|
{ as long as parameterless constructors aren't allowed in records they
|
|
aren't allowed in record/type helpers either }
|
|
MessagePos(result.procsym.fileinfo,parser_e_no_parameterless_constructor_in_records);
|
|
end;
|
|
|
|
chkcpp(result);
|
|
|
|
parse_only:=oldparse_only;
|
|
end;
|
|
_DESTRUCTOR :
|
|
begin
|
|
if (astruct.symtable.currentvisibility=vis_published) and
|
|
not(oo_can_have_published in astruct.objectoptions) then
|
|
Message(parser_e_cant_have_published);
|
|
|
|
if not is_classdef then
|
|
if (oo_has_new_destructor in astruct.objectoptions) then
|
|
Message(parser_n_only_one_destructor);
|
|
|
|
if is_interface(astruct) then
|
|
Message(parser_e_no_con_des_in_interfaces);
|
|
|
|
{ (class) destructors are not allowed in class helpers }
|
|
if is_objectpascal_helper(astruct) then
|
|
Message(parser_e_no_destructor_in_records);
|
|
|
|
if not is_classdef and (astruct.symtable.currentvisibility<>vis_public) then
|
|
Message(parser_w_destructor_should_be_public);
|
|
|
|
{ Objective-C does not know the concept of a destructor }
|
|
if is_objc_class_or_protocol(astruct) then
|
|
Message(parser_e_objc_no_constructor_destructor);
|
|
|
|
{ only 1 class destructor is allowed }
|
|
if is_classdef and (oo_has_class_destructor in astruct.objectoptions) then
|
|
Message1(parser_e_only_one_class_destructor_allowed, astruct.objrealname^);
|
|
|
|
oldparse_only:=parse_only;
|
|
parse_only:=true;
|
|
if is_classdef then
|
|
result:=class_destructor_head(current_structdef)
|
|
else
|
|
result:=destructor_head;
|
|
|
|
chkcpp(result);
|
|
|
|
parse_only:=oldparse_only;
|
|
end;
|
|
else
|
|
internalerror(2011032102);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure parse_object_members;
|
|
|
|
var
|
|
typedconstswritable: boolean;
|
|
object_member_blocktype : tblock_type;
|
|
fields_allowed, is_classdef, class_fields, is_final, final_fields: boolean;
|
|
vdoptions: tvar_dec_options;
|
|
fieldlist: tfpobjectlist;
|
|
|
|
|
|
procedure parse_const;
|
|
begin
|
|
if not(current_objectdef.objecttype in [odt_class,odt_object,odt_helper,odt_javaclass,odt_interfacejava]) then
|
|
Message(parser_e_type_var_const_only_in_records_and_classes);
|
|
consume(_CONST);
|
|
object_member_blocktype:=bt_const;
|
|
final_fields:=is_final;
|
|
is_final:=false;
|
|
end;
|
|
|
|
|
|
procedure parse_var;
|
|
begin
|
|
if not(current_objectdef.objecttype in [odt_class,odt_object,odt_helper,odt_javaclass]) and
|
|
{ Java interfaces can contain static final class vars }
|
|
not((current_objectdef.objecttype=odt_interfacejava) and
|
|
is_final and is_classdef) then
|
|
Message(parser_e_type_var_const_only_in_records_and_classes);
|
|
consume(_VAR);
|
|
fields_allowed:=true;
|
|
object_member_blocktype:=bt_general;
|
|
class_fields:=is_classdef;
|
|
final_fields:=is_final;
|
|
is_classdef:=false;
|
|
is_final:=false;
|
|
end;
|
|
|
|
|
|
procedure parse_class;
|
|
begin
|
|
is_classdef:=false;
|
|
{ read class method/field/property }
|
|
consume(_CLASS);
|
|
{ class modifier is only allowed for procedures, functions, }
|
|
{ constructors, destructors, fields and properties }
|
|
if not(token in [_FUNCTION,_PROCEDURE,_PROPERTY,_VAR,_CONSTRUCTOR,_DESTRUCTOR]) then
|
|
Message(parser_e_procedure_or_function_expected);
|
|
|
|
{ Java interfaces can contain final class vars }
|
|
if is_interface(current_structdef) or
|
|
(is_javainterface(current_structdef) and
|
|
(not(is_final) or
|
|
(token<>_VAR))) then
|
|
Message(parser_e_no_static_method_in_interfaces)
|
|
else
|
|
{ class methods are also allowed for Objective-C protocols }
|
|
is_classdef:=true;
|
|
end;
|
|
|
|
|
|
procedure parse_visibility(vis: tvisibility; oo: tobjectoption);
|
|
begin
|
|
{ Objective-C and Java classes do not support "published",
|
|
as basically everything is published. }
|
|
if (vis=vis_published) and
|
|
(is_objc_class_or_protocol(current_structdef) or
|
|
is_java_class_or_interface(current_structdef)) then
|
|
Message(parser_e_no_objc_published)
|
|
else if is_interface(current_structdef) or
|
|
is_objc_protocol_or_category(current_structdef) or
|
|
is_javainterface(current_structdef) then
|
|
Message(parser_e_no_access_specifier_in_interfaces);
|
|
current_structdef.symtable.currentvisibility:=vis;
|
|
consume(token);
|
|
if (oo<>oo_none) then
|
|
include(current_structdef.objectoptions,oo);
|
|
fields_allowed:=true;
|
|
is_classdef:=false;
|
|
class_fields:=false;
|
|
is_final:=false;
|
|
object_member_blocktype:=bt_general;
|
|
end;
|
|
|
|
|
|
begin
|
|
{ empty class declaration ? }
|
|
if (current_objectdef.objecttype in [odt_class,odt_objcclass,odt_javaclass]) and
|
|
(token=_SEMICOLON) then
|
|
exit;
|
|
|
|
{ in "publishable" classes the default access type is published }
|
|
if (oo_can_have_published in current_structdef.objectoptions) then
|
|
current_structdef.symtable.currentvisibility:=vis_published
|
|
else
|
|
current_structdef.symtable.currentvisibility:=vis_public;
|
|
fields_allowed:=true;
|
|
is_classdef:=false;
|
|
class_fields:=false;
|
|
is_final:=false;
|
|
final_fields:=false;
|
|
object_member_blocktype:=bt_general;
|
|
fieldlist:=tfpobjectlist.create(false);
|
|
repeat
|
|
case token of
|
|
_TYPE :
|
|
begin
|
|
if not(current_objectdef.objecttype in [odt_class,odt_object,odt_helper,odt_javaclass,odt_interfacejava]) then
|
|
Message(parser_e_type_var_const_only_in_records_and_classes);
|
|
consume(_TYPE);
|
|
object_member_blocktype:=bt_type;
|
|
end;
|
|
_VAR :
|
|
begin
|
|
parse_var;
|
|
end;
|
|
_CONST:
|
|
begin
|
|
parse_const
|
|
end;
|
|
_ID :
|
|
begin
|
|
if is_objcprotocol(current_structdef) and
|
|
((idtoken=_REQUIRED) or
|
|
(idtoken=_OPTIONAL)) then
|
|
begin
|
|
current_structdef.symtable.currentlyoptional:=(idtoken=_OPTIONAL);
|
|
consume(idtoken)
|
|
end
|
|
else case idtoken of
|
|
_PRIVATE :
|
|
begin
|
|
parse_visibility(vis_private,oo_has_private);
|
|
end;
|
|
_PROTECTED :
|
|
begin
|
|
parse_visibility(vis_protected,oo_has_protected);
|
|
end;
|
|
_PUBLIC :
|
|
begin
|
|
parse_visibility(vis_public,oo_none);
|
|
end;
|
|
_PUBLISHED :
|
|
begin
|
|
parse_visibility(vis_published,oo_none);
|
|
end;
|
|
_STRICT :
|
|
begin
|
|
if is_interface(current_structdef) or
|
|
is_objc_protocol_or_category(current_structdef) or
|
|
is_javainterface(current_structdef) then
|
|
Message(parser_e_no_access_specifier_in_interfaces);
|
|
consume(_STRICT);
|
|
if token=_ID then
|
|
begin
|
|
case idtoken of
|
|
_PRIVATE:
|
|
begin
|
|
consume(_PRIVATE);
|
|
current_structdef.symtable.currentvisibility:=vis_strictprivate;
|
|
include(current_structdef.objectoptions,oo_has_strictprivate);
|
|
end;
|
|
_PROTECTED:
|
|
begin
|
|
consume(_PROTECTED);
|
|
current_structdef.symtable.currentvisibility:=vis_strictprotected;
|
|
include(current_structdef.objectoptions,oo_has_strictprotected);
|
|
end;
|
|
else
|
|
message(parser_e_protected_or_private_expected);
|
|
end;
|
|
end
|
|
else
|
|
message(parser_e_protected_or_private_expected);
|
|
fields_allowed:=true;
|
|
is_classdef:=false;
|
|
class_fields:=false;
|
|
is_final:=false;
|
|
final_fields:=false;
|
|
object_member_blocktype:=bt_general;
|
|
end
|
|
else if (m_final_fields in current_settings.modeswitches) and
|
|
(token=_ID) and
|
|
(idtoken=_FINAL) then
|
|
begin
|
|
{ currently only supported for external classes, because
|
|
requires fully working DFA otherwise }
|
|
if (current_structdef.typ<>objectdef) or
|
|
not(oo_is_external in tobjectdef(current_structdef).objectoptions) then
|
|
Message(parser_e_final_only_external);
|
|
consume(_final);
|
|
is_final:=true;
|
|
if token=_CLASS then
|
|
parse_class;
|
|
if not(token in [_CONST,_VAR]) then
|
|
message(parser_e_final_only_const_var);
|
|
end
|
|
else
|
|
begin
|
|
if object_member_blocktype=bt_general then
|
|
begin
|
|
if is_interface(current_structdef) or
|
|
is_objc_protocol_or_category(current_structdef) or
|
|
is_objectpascal_helper(current_structdef) or
|
|
(is_javainterface(current_structdef) and
|
|
not(class_fields and final_fields)) then
|
|
Message(parser_e_no_vars_in_interfaces);
|
|
|
|
if (current_structdef.symtable.currentvisibility=vis_published) and
|
|
not(oo_can_have_published in current_structdef.objectoptions) then
|
|
Message(parser_e_cant_have_published);
|
|
if (not fields_allowed) then
|
|
Message(parser_e_field_not_allowed_here);
|
|
|
|
vdoptions:=[vd_object];
|
|
if class_fields then
|
|
include(vdoptions,vd_class);
|
|
if is_class(current_structdef) then
|
|
include(vdoptions,vd_canreorder);
|
|
if final_fields then
|
|
include(vdoptions,vd_final);
|
|
read_record_fields(vdoptions,fieldlist,nil);
|
|
end
|
|
else if object_member_blocktype=bt_type then
|
|
types_dec(true)
|
|
else if object_member_blocktype=bt_const then
|
|
begin
|
|
if final_fields then
|
|
begin
|
|
{ the value of final fields cannot be changed
|
|
once they've been assigned a value }
|
|
typedconstswritable:=cs_typed_const_writable in current_settings.localswitches;
|
|
exclude(current_settings.localswitches,cs_typed_const_writable);
|
|
end;
|
|
consts_dec(true,not is_javainterface(current_structdef));
|
|
if final_fields and
|
|
typedconstswritable then
|
|
include(current_settings.localswitches,cs_typed_const_writable);
|
|
end
|
|
else
|
|
internalerror(201001110);
|
|
end;
|
|
end;
|
|
end;
|
|
_PROPERTY :
|
|
begin
|
|
struct_property_dec(is_classdef);
|
|
fields_allowed:=false;
|
|
is_classdef:=false;
|
|
end;
|
|
_CLASS:
|
|
begin
|
|
parse_class;
|
|
end;
|
|
_PROCEDURE,
|
|
_FUNCTION,
|
|
_CONSTRUCTOR,
|
|
_DESTRUCTOR :
|
|
begin
|
|
method_dec(current_structdef,is_classdef);
|
|
fields_allowed:=false;
|
|
is_classdef:=false;
|
|
end;
|
|
_END :
|
|
begin
|
|
consume(_END);
|
|
break;
|
|
end;
|
|
else
|
|
consume(_ID); { Give a ident expected message, like tp7 }
|
|
end;
|
|
until false;
|
|
|
|
if is_class(current_structdef) then
|
|
tabstractrecordsymtable(current_structdef.symtable).addfieldlist(fieldlist,true);
|
|
fieldlist.free;
|
|
end;
|
|
|
|
|
|
function object_dec(objecttype:tobjecttyp;const n:tidstring;objsym:tsym;genericdef:tstoreddef;genericlist:TFPObjectList;fd : tobjectdef;helpertype:thelpertype) : tobjectdef;
|
|
var
|
|
old_current_structdef: tabstractrecorddef;
|
|
old_current_genericdef,
|
|
old_current_specializedef: tstoreddef;
|
|
hrecst: trecordsymtable;
|
|
fsym: tfieldvarsym;
|
|
old_parse_generic: boolean;
|
|
list: TFPObjectList;
|
|
s: String;
|
|
st: TSymtable;
|
|
olddef: tdef;
|
|
begin
|
|
old_current_structdef:=current_structdef;
|
|
old_current_genericdef:=current_genericdef;
|
|
old_current_specializedef:=current_specializedef;
|
|
old_parse_generic:=parse_generic;
|
|
|
|
current_structdef:=nil;
|
|
current_genericdef:=nil;
|
|
current_specializedef:=nil;
|
|
|
|
{ objects and class types can't be declared local }
|
|
if not(symtablestack.top.symtabletype in [globalsymtable,staticsymtable,objectsymtable,recordsymtable]) and
|
|
not assigned(genericlist) then
|
|
Message(parser_e_no_local_objects);
|
|
|
|
{ reuse forward objectdef? }
|
|
if assigned(fd) then
|
|
begin
|
|
if fd.objecttype<>objecttype then
|
|
begin
|
|
Message(parser_e_forward_mismatch);
|
|
{ recover }
|
|
current_structdef:=tobjectdef.create(current_objectdef.objecttype,n,nil);
|
|
include(current_structdef.objectoptions,oo_is_forward);
|
|
end
|
|
else
|
|
current_structdef:=fd
|
|
end
|
|
else
|
|
begin
|
|
{ anonym objects aren't allow (o : object a : longint; end;) }
|
|
if n='' then
|
|
Message(parser_f_no_anonym_objects);
|
|
|
|
{ create new class }
|
|
current_structdef:=tobjectdef.create(objecttype,n,nil);
|
|
|
|
{ include always the forward flag, it'll be removed after the parent class have been
|
|
added. This is to prevent circular childof loops }
|
|
include(current_structdef.objectoptions,oo_is_forward);
|
|
|
|
if (cs_compilesystem in current_settings.moduleswitches) then
|
|
begin
|
|
case current_objectdef.objecttype of
|
|
odt_interfacecom :
|
|
if (current_structdef.objname^='IUNKNOWN') then
|
|
interface_iunknown:=current_objectdef
|
|
else
|
|
if (current_structdef.objname^='IDISPATCH') then
|
|
interface_idispatch:=current_objectdef;
|
|
odt_class :
|
|
if (current_structdef.objname^='TOBJECT') then
|
|
class_tobject:=current_objectdef;
|
|
odt_javaclass:
|
|
begin
|
|
if (current_structdef.objname^='TOBJECT') then
|
|
class_tobject:=current_objectdef
|
|
else if (current_objectdef.objname^='JLOBJECT') then
|
|
begin
|
|
java_jlobject:=current_objectdef;
|
|
{ the methodpointer type is normally created in
|
|
psystem, but java_jlobject is not yet available
|
|
there... }
|
|
hrecst:=trecordsymtable.create('',1);
|
|
fsym:=tfieldvarsym.create('$proc',vs_value,java_jlobject,[]);
|
|
hrecst.insert(fsym);
|
|
hrecst.addfield(fsym,vis_hidden);
|
|
fsym:=tfieldvarsym.create('$data',vs_value,java_jlobject,[]);
|
|
hrecst.insert(fsym);
|
|
hrecst.addfield(fsym,vis_hidden);
|
|
methodpointertype:=trecorddef.create('',hrecst);
|
|
systemunit.insert(ttypesym.create('$methodpointer',methodpointertype));
|
|
end
|
|
else if (current_objectdef.objname^='JLTHROWABLE') then
|
|
java_jlthrowable:=current_objectdef
|
|
else if (current_objectdef.objname^='FPCBASERECORDTYPE') then
|
|
java_fpcbaserecordtype:=current_objectdef
|
|
else if (current_objectdef.objname^='JLSTRING') then
|
|
java_jlstring:=current_objectdef
|
|
else if (current_objectdef.objname^='ANSISTRINGCLASS') then
|
|
java_ansistring:=current_objectdef
|
|
else if (current_objectdef.objname^='SHORTSTRINGCLASS') then
|
|
java_shortstring:=current_objectdef
|
|
else if (current_objectdef.objname^='JLENUM') then
|
|
java_jlenum:=current_objectdef
|
|
else if (current_objectdef.objname^='JUENUMSET') then
|
|
java_juenumset:=current_objectdef
|
|
else if (current_objectdef.objname^='FPCBITSET') then
|
|
java_jubitset:=current_objectdef
|
|
else if (current_objectdef.objname^='FPCBASEPROCVARTYPE') then
|
|
java_procvarbase:=current_objectdef;
|
|
end;
|
|
end;
|
|
end;
|
|
if (current_module.modulename^='OBJCBASE') then
|
|
begin
|
|
case current_objectdef.objecttype of
|
|
odt_objcclass:
|
|
if (current_objectdef.objname^='Protocol') then
|
|
objc_protocoltype:=current_objectdef;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ usage of specialized type inside its generic template }
|
|
if assigned(genericdef) then
|
|
current_specializedef:=current_structdef
|
|
{ reject declaration of generic class inside generic class }
|
|
else if assigned(genericlist) then
|
|
current_genericdef:=current_structdef;
|
|
|
|
{ nested types of specializations are specializations as well }
|
|
if assigned(old_current_structdef) and
|
|
(df_specialization in old_current_structdef.defoptions) then
|
|
include(current_structdef.defoptions,df_specialization);
|
|
if assigned(old_current_structdef) and
|
|
(df_generic in old_current_structdef.defoptions) then
|
|
begin
|
|
include(current_structdef.defoptions,df_generic);
|
|
current_genericdef:=current_structdef;
|
|
end;
|
|
|
|
{ set published flag in $M+ mode, it can also be inherited and will
|
|
be added when the parent class set with tobjectdef.set_parent (PFV) }
|
|
if (cs_generate_rtti in current_settings.localswitches) and
|
|
(current_objectdef.objecttype in [odt_interfacecom,odt_class,odt_helper]) then
|
|
include(current_structdef.objectoptions,oo_can_have_published);
|
|
|
|
{ Objective-C/Java objectdefs can be "formal definitions", in which case
|
|
the syntax is "type tc = objcclass external;" -> we have to parse
|
|
its object options (external) already here, to make sure that such
|
|
definitions are recognised as formal defs }
|
|
if objecttype in [odt_objcclass,odt_objcprotocol,odt_objccategory,odt_javaclass,odt_interfacejava] then
|
|
parse_object_options;
|
|
|
|
{ forward def? }
|
|
if not assigned(fd) and
|
|
(token=_SEMICOLON) then
|
|
begin
|
|
{ add to the list of definitions to check that the forward
|
|
is resolved. this is required for delphi mode }
|
|
current_module.checkforwarddefs.add(current_structdef);
|
|
end
|
|
else
|
|
begin
|
|
{ change objccategories into objcclass helpers }
|
|
if (objecttype=odt_objccategory) then
|
|
begin
|
|
current_objectdef.objecttype:=odt_objcclass;
|
|
include(current_structdef.objectoptions,oo_is_classhelper);
|
|
end;
|
|
|
|
{ include the class helper flag for Object Pascal helpers }
|
|
if (objecttype=odt_helper) then
|
|
include(current_objectdef.objectoptions,oo_is_classhelper);
|
|
|
|
{ parse list of options (abstract / sealed) }
|
|
if not(objecttype in [odt_objcclass,odt_objcprotocol,odt_objccategory,odt_javaclass,odt_interfacejava]) then
|
|
parse_object_options;
|
|
|
|
symtablestack.push(current_structdef.symtable);
|
|
insert_generic_parameter_types(current_structdef,genericdef,genericlist);
|
|
{ when we are parsing a generic already then this is a generic as
|
|
well }
|
|
if old_parse_generic then
|
|
include(current_structdef.defoptions, df_generic);
|
|
parse_generic:=(df_generic in current_structdef.defoptions);
|
|
|
|
{ in non-Delphi modes we need a strict private symbol without type
|
|
count and type parameters in the name to simply resolving }
|
|
maybe_insert_generic_rename_symbol(n,genericlist);
|
|
|
|
{ parse list of parent classes }
|
|
{ for record helpers in mode Delphi this is not allowed }
|
|
if not (is_objectpascal_helper(current_objectdef) and
|
|
(m_delphi in current_settings.modeswitches) and
|
|
(helpertype=ht_record)) then
|
|
parse_parent_classes
|
|
else
|
|
{ remove forward flag, is resolved (this is normally done inside
|
|
parse_parent_classes) }
|
|
exclude(current_structdef.objectoptions,oo_is_forward);
|
|
|
|
{ parse extended type for helpers }
|
|
if is_objectpascal_helper(current_structdef) then
|
|
parse_extended_type(helpertype);
|
|
|
|
{ parse optional GUID for interfaces }
|
|
parse_guid;
|
|
|
|
{ classes can handle links to themself not only inside type blocks
|
|
but in const blocks too. to make this possible we need to set
|
|
their symbols to real defs instead of errordef }
|
|
|
|
if assigned(objsym) and (objecttype in [odt_class,odt_javaclass,odt_interfacejava]) then
|
|
begin
|
|
olddef:=ttypesym(objsym).typedef;
|
|
ttypesym(objsym).typedef:=current_structdef;
|
|
current_structdef.typesym:=objsym;
|
|
end
|
|
else
|
|
olddef:=nil;
|
|
|
|
{ parse and insert object members }
|
|
parse_object_members;
|
|
|
|
if assigned(olddef) then
|
|
begin
|
|
ttypesym(objsym).typedef:=olddef;
|
|
current_structdef.typesym:=nil;
|
|
end;
|
|
|
|
if not(oo_is_external in current_structdef.objectoptions) then
|
|
begin
|
|
{ In Java, constructors are not automatically inherited (so you can
|
|
hide them). Emulate the Pascal behaviour for classes implemented
|
|
in Pascal (we cannot do it for classes implemented in Java, since
|
|
we obviously cannot add constructors to those) }
|
|
if is_javaclass(current_structdef) then
|
|
begin
|
|
add_missing_parent_constructors_intf(tobjectdef(current_structdef),true,vis_none);
|
|
{$ifdef jvm}
|
|
maybe_add_public_default_java_constructor(tobjectdef(current_structdef));
|
|
jvm_wrap_virtual_class_methods(tobjectdef(current_structdef));
|
|
{$endif}
|
|
end;
|
|
{ need method to hold the initialization code for typed constants? }
|
|
if (target_info.system in systems_typed_constants_node_init) and
|
|
not is_any_interface_kind(current_structdef) then
|
|
add_typedconst_init_routine(current_structdef);
|
|
end;
|
|
|
|
symtablestack.pop(current_structdef.symtable);
|
|
end;
|
|
|
|
{ generate vmt space if needed }
|
|
if not(oo_has_vmt in current_structdef.objectoptions) and
|
|
not(oo_is_forward in current_structdef.objectoptions) and
|
|
{ no vmt for helpers ever }
|
|
not is_objectpascal_helper(current_structdef) and
|
|
(
|
|
([oo_has_virtual,oo_has_constructor,oo_has_destructor]*current_structdef.objectoptions<>[]) or
|
|
(current_objectdef.objecttype in [odt_class])
|
|
) then
|
|
current_objectdef.insertvmt;
|
|
|
|
{ for implemented classes with a vmt check if there is a constructor }
|
|
if (oo_has_vmt in current_structdef.objectoptions) and
|
|
not(oo_is_forward in current_structdef.objectoptions) and
|
|
not(oo_has_constructor in current_structdef.objectoptions) and
|
|
not is_objc_class_or_protocol(current_structdef) and
|
|
not is_java_class_or_interface(current_structdef) then
|
|
Message1(parser_w_virtual_without_constructor,current_structdef.objrealname^);
|
|
|
|
if is_interface(current_structdef) or
|
|
is_objcprotocol(current_structdef) or
|
|
is_javainterface(current_structdef) then
|
|
setinterfacemethodoptions
|
|
else if is_objcclass(current_structdef) then
|
|
setobjcclassmethodoptions;
|
|
|
|
{ if this helper is defined in the implementation section of the unit
|
|
or inside the main project file, the extendeddefs list of the current
|
|
module must be updated (it will be removed when poping the symtable) }
|
|
if is_objectpascal_helper(current_structdef) and
|
|
(current_objectdef.extendeddef.typ<>errordef) then
|
|
begin
|
|
{ the topmost symtable must be a static symtable }
|
|
st:=current_structdef.owner;
|
|
while st.symtabletype in [objectsymtable,recordsymtable] do
|
|
st:=st.defowner.owner;
|
|
if st.symtabletype=staticsymtable then
|
|
begin
|
|
if current_objectdef.extendeddef.typ in [recorddef,objectdef] then
|
|
s:=make_mangledname('',tabstractrecorddef(current_objectdef.extendeddef).symtable,'')
|
|
else
|
|
s:=make_mangledname('',current_objectdef.extendeddef.owner,current_objectdef.extendeddef.typesym.name);
|
|
Message1(sym_d_adding_helper_for,s);
|
|
list:=TFPObjectList(current_module.extendeddefs.Find(s));
|
|
if not assigned(list) then
|
|
begin
|
|
list:=TFPObjectList.Create(false);
|
|
current_module.extendeddefs.Add(s, list);
|
|
end;
|
|
list.add(current_structdef);
|
|
end;
|
|
end;
|
|
tabstractrecordsymtable(current_objectdef.symtable).addalignmentpadding;
|
|
|
|
{ return defined objectdef }
|
|
result:=current_objectdef;
|
|
|
|
{ restore old state }
|
|
current_structdef:=old_current_structdef;
|
|
current_genericdef:=old_current_genericdef;
|
|
current_specializedef:=old_current_specializedef;
|
|
parse_generic:=old_parse_generic;
|
|
end;
|
|
|
|
end.
|