mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-11-04 03:19:47 +01:00
8024fcd7ec
This fixes Mantis #31634 as far as I see it useful to; anything further would probably require extension of the message generation system by a context or such so that the compiler could write "Error in TFoo<Integer>: ..." instead of merely "Error: ..." or something like that. No test added due to the nature of the bug. git-svn-id: trunk@35748 -
3855 lines
147 KiB
ObjectPascal
3855 lines
147 KiB
ObjectPascal
{
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Copyright (c) 1998-2002 by Florian Klaempfl, Daniel Mantione
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Does the parsing of the procedures/functions
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit pdecsub;
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{$i fpcdefs.inc}
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interface
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uses
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{ common }
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cclasses,
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{ scanner }
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tokens,
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{ symtable }
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symconst,symtype,symdef,symsym;
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type
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tpdflag=(
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pd_body, { directive needs a body }
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pd_implemen, { directive can be used in implementation section }
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pd_interface, { directive can be used in interface section }
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pd_object, { directive can be used with object declaration }
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pd_record, { directive can be used with record declaration }
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pd_procvar, { directive can be used with procvar declaration }
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pd_notobject, { directive can not be used with object declaration }
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pd_notrecord, { directive can not be used with record declaration }
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pd_notobjintf, { directive can not be used with interface declaration }
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pd_notprocvar, { directive can not be used with procvar declaration }
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pd_dispinterface,{ directive can be used with dispinterface methods }
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pd_cppobject, { directive can be used with cppclass }
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pd_objcclass, { directive can be used with objcclass }
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pd_objcprot, { directive can be used with objcprotocol }
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pd_nothelper, { directive can not be used with record/class helper declaration }
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pd_javaclass, { directive can be used with Java class }
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pd_intfjava { directive can be used with Java interface }
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);
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tpdflags=set of tpdflag;
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// flags of handle_calling_convention routine
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thccflag=(
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hcc_check, // perform checks and outup errors if found
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hcc_insert_hidden_paras // insert hidden parameters
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);
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thccflags=set of thccflag;
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const
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hcc_all=[hcc_check,hcc_insert_hidden_paras];
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function check_proc_directive(isprocvar:boolean):boolean;
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function proc_add_definition(var currpd:tprocdef):boolean;
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function proc_get_importname(pd:tprocdef):string;
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procedure proc_set_mangledname(pd:tprocdef);
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procedure handle_calling_convention(pd:tabstractprocdef;flags:thccflags=hcc_all);
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procedure parse_parameter_dec(pd:tabstractprocdef);
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procedure parse_proc_directives(pd:tabstractprocdef;var pdflags:tpdflags);
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procedure parse_var_proc_directives(sym:tsym);
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procedure parse_object_proc_directives(pd:tabstractprocdef);
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procedure parse_record_proc_directives(pd:tabstractprocdef);
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function parse_proc_head(astruct:tabstractrecorddef;potype:tproctypeoption;isgeneric:boolean;genericdef:tdef;generictypelist:tfphashobjectlist;out pd:tprocdef):boolean;
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function parse_proc_dec(isclassmethod:boolean;astruct:tabstractrecorddef;isgeneric:boolean):tprocdef;
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procedure parse_proc_dec_finish(pd:tprocdef;isclassmethod:boolean;astruct:tabstractrecorddef);
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{ parse a record method declaration (not a (class) constructor/destructor) }
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function parse_record_method_dec(astruct: tabstractrecorddef; is_classdef: boolean;hadgeneric:boolean): tprocdef;
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procedure insert_record_hidden_paras(astruct: trecorddef);
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{ helper functions - they insert nested objects hierarchy to the symtablestack
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with object hierarchy
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}
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function push_child_hierarchy(obj:tabstractrecorddef):integer;
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function pop_child_hierarchy(obj:tabstractrecorddef):integer;
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function push_nested_hierarchy(obj:tabstractrecorddef):integer;
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function pop_nested_hierarchy(obj:tabstractrecorddef):integer;
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implementation
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uses
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SysUtils,
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{ common }
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cutils,
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{ global }
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globtype,globals,verbose,constexp,
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systems,
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cpuinfo,
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{ assembler }
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aasmbase,
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{ symtable }
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symbase,symcpu,symtable,defutil,defcmp,
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{ parameter handling }
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paramgr,cpupara,
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{ pass 1 }
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fmodule,node,htypechk,ncon,ppu,nld,
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objcutil,
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{ parser }
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scanner,
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syscinfo,
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pbase,pexpr,ptype,pdecl,pparautl,pgenutil
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{$ifdef jvm}
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,pjvm
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{$endif}
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;
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const
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{ Please leave this here, this module should NOT use
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these variables.
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Declaring it as string here results in an error when compiling (PFV) }
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current_procinfo = 'error';
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function push_child_hierarchy(obj:tabstractrecorddef):integer;
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var
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_class,hp : tobjectdef;
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begin
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if obj.typ=recorddef then
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begin
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symtablestack.push(obj.symtable);
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result:=1;
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exit;
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end;
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result:=0;
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{ insert class hierarchy in the reverse order }
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hp:=nil;
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repeat
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_class:=tobjectdef(obj);
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while _class.childof<>hp do
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_class:=_class.childof;
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hp:=_class;
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symtablestack.push(_class.symtable);
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inc(result);
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until hp=obj;
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end;
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function push_nested_hierarchy(obj:tabstractrecorddef):integer;
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begin
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result:=0;
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if obj.owner.symtabletype in [ObjectSymtable,recordsymtable] then
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inc(result,push_nested_hierarchy(tabstractrecorddef(obj.owner.defowner)));
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inc(result,push_child_hierarchy(obj));
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end;
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function pop_child_hierarchy(obj:tabstractrecorddef):integer;
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var
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_class : tobjectdef;
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begin
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if obj.typ=recorddef then
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begin
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symtablestack.pop(obj.symtable);
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result:=1;
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exit;
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end;
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result:=0;
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_class:=tobjectdef(obj);
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while assigned(_class) do
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begin
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symtablestack.pop(_class.symtable);
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_class:=_class.childof;
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inc(result);
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end;
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end;
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function pop_nested_hierarchy(obj:tabstractrecorddef):integer;
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begin
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result:=pop_child_hierarchy(obj);
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if obj.owner.symtabletype in [ObjectSymtable,recordsymtable] then
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inc(result,pop_nested_hierarchy(tabstractrecorddef(obj.owner.defowner)));
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end;
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procedure check_msg_para(p:TObject;arg:pointer);
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begin
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if (tsym(p).typ<>paravarsym) then
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exit;
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with tparavarsym(p) do
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begin
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{ Count parameters }
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if (paranr>=10) then
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inc(plongint(arg)^);
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{ First parameter must be var }
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if (paranr=10) and
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(varspez<>vs_var) then
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MessagePos(fileinfo,parser_e_ill_msg_param);
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end;
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end;
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procedure set_addr_param_regable(p:TObject;arg:pointer);
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begin
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if (tsym(p).typ<>paravarsym) then
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exit;
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with tparavarsym(p) do
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begin
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if (not needs_finalization) and
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paramanager.push_addr_param(varspez,vardef,tprocdef(arg).proccalloption) then
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varregable:=vr_addr;
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end;
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end;
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procedure parse_parameter_dec(pd:tabstractprocdef);
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{
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handle_procvar needs the same changes
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}
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type
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tppv = (pv_none,pv_proc,pv_func);
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var
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sc : TFPObjectList;
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hdef : tdef;
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arrayelementdef : tdef;
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vs : tparavarsym;
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i : longint;
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srsym : tsym;
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pv : tprocvardef;
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varspez : Tvarspez;
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defaultvalue : tconstsym;
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defaultrequired : boolean;
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old_block_type : tblock_type;
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currparast : tparasymtable;
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parseprocvar : tppv;
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locationstr : string;
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paranr : integer;
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dummytype : ttypesym;
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explicit_paraloc,
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need_array,
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is_univ: boolean;
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stoptions : TSingleTypeOptions;
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procedure handle_default_para_value;
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var
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convpd : tprocdef;
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doconv : tconverttype;
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nodetype : tnodetype;
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bt : tblock_type;
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begin
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{ only allowed for types that can be represented by a
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constant expression }
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if try_to_consume(_EQ) then
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begin
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if (hdef.typ in [recorddef,variantdef,filedef,formaldef]) or
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is_object(hdef) or
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((hdef.typ=arraydef) and
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not is_dynamic_array(hdef)) then
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Message1(type_e_invalid_default_value,FullTypeName(hdef,nil));
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vs:=tparavarsym(sc[0]);
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if sc.count>1 then
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Message(parser_e_default_value_only_one_para);
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if not(vs.varspez in [vs_value,vs_const,vs_constref]) then
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Message(parser_e_default_value_val_const);
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bt:=block_type;
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block_type:=bt_const;
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{ prefix 'def' to the parameter name }
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defaultvalue:=ReadConstant('$def'+vs.name,vs.fileinfo,nodetype);
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block_type:=bt;
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if assigned(defaultvalue) then
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begin
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include(defaultvalue.symoptions,sp_internal);
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pd.parast.insert(defaultvalue);
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{ check whether the default value is of the correct
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type }
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if compare_defs_ext(defaultvalue.constdef,hdef,nodetype,doconv,convpd,[])<=te_convert_operator then
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MessagePos2(defaultvalue.fileinfo,type_e_incompatible_types,FullTypeName(defaultvalue.constdef,hdef),FullTypeName(hdef,defaultvalue.constdef));
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end;
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defaultrequired:=true;
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end
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else
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begin
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if defaultrequired then
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Message1(parser_e_default_value_expected_for_para,vs.name);
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end;
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end;
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begin
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old_block_type:=block_type;
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explicit_paraloc:=false;
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consume(_LKLAMMER);
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{ Delphi/Kylix supports nonsense like }
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{ procedure p(); }
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if try_to_consume(_RKLAMMER) and
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not(m_tp7 in current_settings.modeswitches) then
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exit;
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{ parsing a proc or procvar ? }
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currparast:=tparasymtable(pd.parast);
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{ reset }
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sc:=TFPObjectList.create(false);
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defaultrequired:=false;
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paranr:=0;
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block_type:=bt_var;
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is_univ:=false;
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repeat
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parseprocvar:=pv_none;
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if try_to_consume(_VAR) then
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varspez:=vs_var
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else
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if try_to_consume(_CONST) then
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varspez:=vs_const
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else
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if (m_out in current_settings.modeswitches) and
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try_to_consume(_OUT) then
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varspez:=vs_out
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else
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if try_to_consume(_CONSTREF) then
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varspez:=vs_constref
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else
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if (m_mac in current_settings.modeswitches) and
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try_to_consume(_POINTPOINTPOINT) then
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begin
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include(pd.procoptions,po_varargs);
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break;
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end
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else
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if (m_nested_procvars in current_settings.modeswitches) and
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try_to_consume(_PROCEDURE) then
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begin
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parseprocvar:=pv_proc;
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varspez:=vs_const;
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end
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else
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if (m_nested_procvars in current_settings.modeswitches) and
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try_to_consume(_FUNCTION) then
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begin
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parseprocvar:=pv_func;
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varspez:=vs_const;
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end
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else
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varspez:=vs_value;
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defaultvalue:=nil;
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hdef:=nil;
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{ read identifiers and insert with error type }
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sc.clear;
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repeat
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inc(paranr);
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vs:=cparavarsym.create(orgpattern,paranr*10,varspez,generrordef,[]);
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currparast.insert(vs);
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if assigned(vs.owner) then
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sc.add(vs)
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else
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vs.free;
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consume(_ID);
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until not try_to_consume(_COMMA);
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locationstr:='';
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{ macpas anonymous procvar }
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if parseprocvar<>pv_none then
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begin
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{ inline procvar definitions are always nested procvars }
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pv:=cprocvardef.create(normal_function_level+1);
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if token=_LKLAMMER then
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parse_parameter_dec(pv);
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if parseprocvar=pv_func then
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begin
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block_type:=bt_var_type;
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consume(_COLON);
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single_type(pv.returndef,[]);
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block_type:=bt_var;
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end;
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hdef:=pv;
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{ possible proc directives }
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if check_proc_directive(true) then
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begin
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dummytype:=ctypesym.create('unnamed',hdef,true);
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parse_var_proc_directives(tsym(dummytype));
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dummytype.typedef:=nil;
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hdef.typesym:=nil;
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dummytype.free;
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end;
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{ Add implicit hidden parameters and function result }
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handle_calling_convention(pv);
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{$ifdef jvm}
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{ anonymous -> no name }
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jvm_create_procvar_class('',pv);
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{$endif}
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end
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else
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{ read type declaration, force reading for value paras }
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if (token=_COLON) or (varspez=vs_value) then
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begin
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consume(_COLON);
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{ check for an open array }
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need_array:=false;
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{ bitpacked open array are not yet supported }
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if (token=_PACKED) and
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not(cs_bitpacking in current_settings.localswitches) then
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begin
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consume(_PACKED);
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need_array:=true;
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end;
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if (token=_ARRAY) or
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need_array then
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begin
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consume(_ARRAY);
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consume(_OF);
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{ define range and type of range }
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hdef:=carraydef.create(0,-1,sizesinttype);
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{ array of const ? }
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if (token=_CONST) and (m_objpas in current_settings.modeswitches) then
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begin
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consume(_CONST);
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srsym:=search_system_type('TVARREC');
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tarraydef(hdef).elementdef:=ttypesym(srsym).typedef;
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include(tarraydef(hdef).arrayoptions,ado_IsArrayOfConst);
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end
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else
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begin
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{ define field type }
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if m_delphi in current_settings.modeswitches then
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stoptions:=[stoAllowSpecialization]
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else
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stoptions:=[];
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single_type(arrayelementdef,stoptions);
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tarraydef(hdef).elementdef:=arrayelementdef;
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end;
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end
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else
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begin
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if (m_mac in current_settings.modeswitches) then
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is_univ:=try_to_consume(_UNIV);
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if try_to_consume(_TYPE) then
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hdef:=ctypedformaltype
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else
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begin
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block_type:=bt_var_type;
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single_type(hdef,[stoAllowSpecialization]);
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block_type:=bt_var;
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end;
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{ open string ? }
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if is_shortstring(hdef) then
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begin
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case varspez of
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vs_var,vs_out:
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begin
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{ not 100% Delphi-compatible: type xstr=string[255] cannot
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become an openstring there, while here it can }
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if (cs_openstring in current_settings.moduleswitches) and
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(tstringdef(hdef).len=255) then
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hdef:=openshortstringtype
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end;
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vs_value:
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begin
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{ value "openstring" parameters don't make sense (the
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original string can never be modified, so there's no
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use in passing its original length), so change these
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into regular shortstring parameters (seems to be what
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Delphi also does) }
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if is_open_string(hdef) then
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hdef:=cshortstringtype;
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end;
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end;
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end;
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if (target_info.system in [system_powerpc_morphos,system_m68k_amiga]) then
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begin
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if (idtoken=_LOCATION) then
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begin
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consume(_LOCATION);
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locationstr:=cstringpattern;
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consume(_CSTRING);
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end
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else
|
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begin
|
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if explicit_paraloc then
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Message(parser_e_paraloc_all_paras);
|
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locationstr:='';
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end;
|
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end
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else
|
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locationstr:='';
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|
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{ default parameter }
|
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if (m_default_para in current_settings.modeswitches) then
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handle_default_para_value;
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end;
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end
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else
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hdef:=cformaltype;
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|
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{ File types are only allowed for var and out parameters }
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if (hdef.typ=filedef) and
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not(varspez in [vs_out,vs_var]) then
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CGMessage(cg_e_file_must_call_by_reference);
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|
|
{ Dispinterfaces are restricted to using only automatable types }
|
|
if (pd.typ=procdef) and is_dispinterface(tprocdef(pd).struct) and
|
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not is_automatable(hdef) then
|
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Message1(type_e_not_automatable,hdef.typename);
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|
|
{ univ cannot be used with types whose size is not known at compile
|
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time }
|
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if is_univ and
|
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not is_valid_univ_para_type(hdef) then
|
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Message1(parser_e_invalid_univ_para,hdef.typename);
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|
|
for i:=0 to sc.count-1 do
|
|
begin
|
|
vs:=tparavarsym(sc[i]);
|
|
vs.univpara:=is_univ;
|
|
{ update varsym }
|
|
vs.vardef:=hdef;
|
|
vs.defaultconstsym:=defaultvalue;
|
|
|
|
if (target_info.system in [system_powerpc_morphos,system_m68k_amiga]) then
|
|
begin
|
|
if locationstr<>'' then
|
|
begin
|
|
if sc.count>1 then
|
|
Message(parser_e_paraloc_only_one_para);
|
|
if (paranr>1) and not(explicit_paraloc) then
|
|
Message(parser_e_paraloc_all_paras);
|
|
explicit_paraloc:=true;
|
|
include(vs.varoptions,vo_has_explicit_paraloc);
|
|
if not(paramanager.parseparaloc(vs,locationstr)) then
|
|
message(parser_e_illegal_explicit_paraloc);
|
|
end
|
|
else
|
|
if explicit_paraloc then
|
|
Message(parser_e_paraloc_all_paras);
|
|
end;
|
|
end;
|
|
until not try_to_consume(_SEMICOLON);
|
|
|
|
if explicit_paraloc then
|
|
begin
|
|
pd.has_paraloc_info:=callerside;
|
|
include(pd.procoptions,po_explicitparaloc);
|
|
end;
|
|
{ remove parasymtable from stack }
|
|
sc.free;
|
|
{ reset object options }
|
|
block_type:=old_block_type;
|
|
consume(_RKLAMMER);
|
|
end;
|
|
|
|
|
|
function parse_proc_head(astruct:tabstractrecorddef;potype:tproctypeoption;isgeneric:boolean;genericdef:tdef;generictypelist:tfphashobjectlist;out pd:tprocdef):boolean;
|
|
var
|
|
hs : string;
|
|
orgsp,sp,orgspnongen,spnongen : TIDString;
|
|
dummysym,srsym : tsym;
|
|
checkstack : psymtablestackitem;
|
|
oldfilepos,
|
|
classstartfilepos,
|
|
procstartfilepos : tfileposinfo;
|
|
i,
|
|
index : longint;
|
|
hadspecialize,
|
|
firstpart,
|
|
freegenericparams,
|
|
found,
|
|
searchagain : boolean;
|
|
st,
|
|
genericst: TSymtable;
|
|
aprocsym : tprocsym;
|
|
popclass : integer;
|
|
ImplIntf : TImplementedInterface;
|
|
old_parse_generic : boolean;
|
|
old_current_structdef: tabstractrecorddef;
|
|
old_current_genericdef,
|
|
old_current_specializedef: tstoreddef;
|
|
lasttoken,lastidtoken: ttoken;
|
|
genericparams : tfphashobjectlist;
|
|
|
|
procedure parse_operator_name;
|
|
begin
|
|
if (lasttoken in [first_overloaded..last_overloaded]) then
|
|
begin
|
|
optoken:=token;
|
|
end
|
|
else
|
|
begin
|
|
case lasttoken of
|
|
_CARET:
|
|
Message1(parser_e_overload_operator_failed,'**');
|
|
_ID:
|
|
case lastidtoken of
|
|
_ENUMERATOR:optoken:=_OP_ENUMERATOR;
|
|
_EXPLICIT:optoken:=_OP_EXPLICIT;
|
|
_INC:optoken:=_OP_INC;
|
|
_DEC:optoken:=_OP_DEC;
|
|
_INITIALIZE:optoken:=_OP_INITIALIZE;
|
|
_FINALIZE:optoken:=_OP_FINALIZE;
|
|
_ADDREF:optoken:=_OP_ADDREF;
|
|
_COPY:optoken:=_OP_COPY;
|
|
else
|
|
if (m_delphi in current_settings.modeswitches) then
|
|
case lastidtoken of
|
|
_IMPLICIT:optoken:=_ASSIGNMENT;
|
|
_NEGATIVE:optoken:=_MINUS;
|
|
_POSITIVE:optoken:=_PLUS;
|
|
_LOGICALNOT:optoken:=_OP_NOT;
|
|
_IN:optoken:=_OP_IN;
|
|
_EQUAL:optoken:=_EQ;
|
|
_NOTEQUAL:optoken:=_NE;
|
|
_GREATERTHAN:optoken:=_GT;
|
|
_GREATERTHANOREQUAL:optoken:=_GTE;
|
|
_LESSTHAN:optoken:=_LT;
|
|
_LESSTHANOREQUAL:optoken:=_LTE;
|
|
_ADD:optoken:=_PLUS;
|
|
_SUBTRACT:optoken:=_MINUS;
|
|
_MULTIPLY:optoken:=_STAR;
|
|
_DIVIDE:optoken:=_SLASH;
|
|
_INTDIVIDE:optoken:=_OP_DIV;
|
|
_MODULUS:optoken:=_OP_MOD;
|
|
_LEFTSHIFT:optoken:=_OP_SHL;
|
|
_RIGHTSHIFT:optoken:=_OP_SHR;
|
|
_LOGICALAND:optoken:=_OP_AND;
|
|
_LOGICALOR:optoken:=_OP_OR;
|
|
_LOGICALXOR:optoken:=_OP_XOR;
|
|
_BITWISEAND:optoken:=_OP_AND;
|
|
_BITWISEOR:optoken:=_OP_OR;
|
|
_BITWISEXOR:optoken:=_OP_XOR;
|
|
else
|
|
Message1(parser_e_overload_operator_failed,'');
|
|
end
|
|
else
|
|
Message1(parser_e_overload_operator_failed,'');
|
|
end
|
|
else
|
|
Message1(parser_e_overload_operator_failed,'');
|
|
end;
|
|
end;
|
|
sp:=overloaded_names[optoken];
|
|
orgsp:=sp;
|
|
spnongen:=sp;
|
|
orgspnongen:=orgsp;
|
|
end;
|
|
|
|
procedure consume_proc_name;
|
|
var
|
|
s : string;
|
|
i : longint;
|
|
sym : ttypesym;
|
|
begin
|
|
lasttoken:=token;
|
|
lastidtoken:=idtoken;
|
|
if assigned(genericparams) and freegenericparams then
|
|
for i:=0 to genericparams.count-1 do
|
|
begin
|
|
sym:=ttypesym(genericparams[i]);
|
|
if tstoreddef(sym.typedef).is_registered then
|
|
begin
|
|
sym.typedef.free;
|
|
sym.typedef:=nil;
|
|
end;
|
|
sym.free;
|
|
end;
|
|
genericparams.free;
|
|
genericparams:=nil;
|
|
hadspecialize:=false;
|
|
if potype=potype_operator then
|
|
optoken:=NOTOKEN;
|
|
if (potype=potype_operator) and (token<>_ID) then
|
|
begin
|
|
parse_operator_name;
|
|
consume(token);
|
|
end
|
|
else
|
|
begin
|
|
sp:=pattern;
|
|
orgsp:=orgpattern;
|
|
spnongen:=sp;
|
|
orgspnongen:=orgsp;
|
|
if firstpart and
|
|
not (m_delphi in current_settings.modeswitches) and
|
|
(idtoken=_SPECIALIZE) then
|
|
hadspecialize:=true;
|
|
consume(_ID);
|
|
if (isgeneric or (m_delphi in current_settings.modeswitches)) and
|
|
(token in [_LT,_LSHARPBRACKET]) then
|
|
begin
|
|
consume(token);
|
|
if token in [_GT,_RSHARPBRACKET] then
|
|
message(type_e_type_id_expected)
|
|
else
|
|
begin
|
|
genericparams:=parse_generic_parameters(true);
|
|
if not assigned(genericparams) then
|
|
internalerror(2015061201);
|
|
if genericparams.count=0 then
|
|
internalerror(2015061202);
|
|
s:='';
|
|
str(genericparams.count,s);
|
|
spnongen:=sp;
|
|
orgspnongen:=orgsp;
|
|
sp:=sp+'$'+s;
|
|
orgsp:=orgsp+'$'+s;
|
|
end;
|
|
if not try_to_consume(_GT) then
|
|
consume(_RSHARPBRACKET);
|
|
end;
|
|
end;
|
|
firstpart:=false;
|
|
end;
|
|
|
|
function search_object_name(sp:TIDString;gen_error:boolean):tsym;
|
|
var
|
|
storepos:tfileposinfo;
|
|
srsymtable:TSymtable;
|
|
begin
|
|
storepos:=current_tokenpos;
|
|
current_tokenpos:=procstartfilepos;
|
|
searchsym(sp,result,srsymtable);
|
|
if not assigned(result) then
|
|
begin
|
|
if gen_error then
|
|
identifier_not_found(orgsp);
|
|
result:=generrorsym;
|
|
end;
|
|
current_tokenpos:=storepos;
|
|
end;
|
|
|
|
procedure consume_generic_interface;
|
|
var
|
|
genparalist : tfpobjectlist;
|
|
prettyname,
|
|
specializename : ansistring;
|
|
genname,
|
|
ugenname : tidstring;
|
|
gencount : string;
|
|
begin
|
|
consume(_LSHARPBRACKET);
|
|
genparalist:=tfpobjectlist.create(false);
|
|
|
|
if not parse_generic_specialization_types(genparalist,nil,prettyname,specializename) then
|
|
srsym:=generrorsym
|
|
else
|
|
begin
|
|
str(genparalist.count,gencount);
|
|
genname:=sp+'$'+gencount;
|
|
{ ToDo: handle nested interfaces }
|
|
genname:=generate_generic_name(genname,specializename,'');
|
|
ugenname:=upper(genname);
|
|
|
|
srsym:=search_object_name(ugenname,false);
|
|
|
|
if not assigned(srsym) then
|
|
begin
|
|
Message1(type_e_generic_declaration_does_not_match,sp+'<'+prettyname+'>');
|
|
srsym:=nil;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
genparalist.free;
|
|
consume(_RSHARPBRACKET);
|
|
end;
|
|
|
|
function handle_generic_interface:boolean;
|
|
var
|
|
i : longint;
|
|
sym : ttypesym;
|
|
typesrsym : tsym;
|
|
typesrsymtable : tsymtable;
|
|
specializename,
|
|
prettyname: ansistring;
|
|
error : boolean;
|
|
genname,
|
|
ugenname : tidstring;
|
|
module : tmodule;
|
|
begin
|
|
result:=false;
|
|
if not assigned(genericparams) then
|
|
exit;
|
|
specializename:='$';
|
|
prettyname:='';
|
|
error:=false;
|
|
for i:=0 to genericparams.count-1 do
|
|
begin
|
|
sym:=ttypesym(genericparams[i]);
|
|
{ ToDo: position }
|
|
if not searchsym(upper(sym.RealName),typesrsym,typesrsymtable) then
|
|
begin
|
|
message1(sym_e_id_not_found,sym.name);
|
|
error:=true;
|
|
continue;
|
|
end;
|
|
if typesrsym.typ<>typesym then
|
|
begin
|
|
message(type_e_type_id_expected);
|
|
error:=true;
|
|
continue;
|
|
end;
|
|
module:=find_module_from_symtable(ttypesym(typesrsym).typedef.owner);
|
|
if not assigned(module) then
|
|
internalerror(2016112803);
|
|
specializename:=specializename+'_$'+hexstr(module.moduleid,8)+'$$'+ttypesym(typesrsym).typedef.unique_id_str;
|
|
if i>0 then
|
|
prettyname:=prettyname+',';
|
|
prettyname:=prettyname+ttypesym(typesrsym).prettyname;
|
|
end;
|
|
result:=true;
|
|
if error then
|
|
begin
|
|
srsym:=generrorsym;
|
|
exit;
|
|
end;
|
|
{ ToDo: handle nested interfaces }
|
|
genname:=generate_generic_name(sp,specializename,'');
|
|
ugenname:=upper(genname);
|
|
|
|
srsym:=search_object_name(ugenname,false);
|
|
if not assigned(srsym) then
|
|
begin
|
|
Message1(type_e_generic_declaration_does_not_match,sp+'<'+prettyname+'>');
|
|
srsym:=generrorsym;
|
|
end;
|
|
end;
|
|
|
|
procedure specialize_generic_interface;
|
|
var
|
|
node : tnode;
|
|
begin
|
|
node:=factor(false,[ef_type_only,ef_had_specialize]);
|
|
if node.nodetype=typen then
|
|
begin
|
|
sp:=ttypenode(node).typedef.typesym.name;
|
|
end
|
|
else
|
|
sp:='';
|
|
end;
|
|
|
|
begin
|
|
sp:='';
|
|
orgsp:='';
|
|
spnongen:='';
|
|
orgspnongen:='';
|
|
|
|
{ Save the position where this procedure really starts }
|
|
procstartfilepos:=current_tokenpos;
|
|
old_parse_generic:=parse_generic;
|
|
|
|
firstpart:=true;
|
|
result:=false;
|
|
pd:=nil;
|
|
aprocsym:=nil;
|
|
srsym:=nil;
|
|
genericparams:=nil;
|
|
freegenericparams:=true;
|
|
hadspecialize:=false;
|
|
|
|
if not assigned(genericdef) then
|
|
begin
|
|
consume_proc_name;
|
|
|
|
{ examine interface map: function/procedure iname.functionname=locfuncname }
|
|
if assigned(astruct) and
|
|
(astruct.typ=objectdef) and
|
|
assigned(tobjectdef(astruct).ImplementedInterfaces) and
|
|
(tobjectdef(astruct).ImplementedInterfaces.count>0) and
|
|
(
|
|
(token=_POINT) or
|
|
(
|
|
hadspecialize and
|
|
(token=_ID)
|
|
)
|
|
) then
|
|
begin
|
|
if hadspecialize and (token=_ID) then
|
|
specialize_generic_interface;
|
|
consume(_POINT);
|
|
if hadspecialize or not handle_generic_interface then
|
|
srsym:=search_object_name(sp,true);
|
|
{ qualifier is interface? }
|
|
ImplIntf:=nil;
|
|
if assigned(srsym) and
|
|
(srsym.typ=typesym) and
|
|
(ttypesym(srsym).typedef.typ=objectdef) then
|
|
ImplIntf:=find_implemented_interface(tobjectdef(astruct),tobjectdef(ttypesym(srsym).typedef));
|
|
if ImplIntf=nil then
|
|
begin
|
|
Message(parser_e_interface_id_expected);
|
|
{ error recovery }
|
|
consume(_ID);
|
|
if try_to_consume(_EQ) then
|
|
consume(_ID);
|
|
exit;
|
|
end
|
|
else
|
|
{ in case of a generic or specialized interface we need to use the
|
|
name of the def instead of the symbol, so that always the correct
|
|
name is used }
|
|
if [df_generic,df_specialization]*ttypesym(srsym).typedef.defoptions<>[] then
|
|
sp:=tobjectdef(ttypesym(srsym).typedef).objname^;
|
|
{ must be a directly implemented interface }
|
|
if Assigned(ImplIntf.ImplementsGetter) then
|
|
Message2(parser_e_implements_no_mapping,ImplIntf.IntfDef.typename,astruct.objrealname^);
|
|
consume(_ID);
|
|
{ Create unique name <interface>.<method> }
|
|
hs:=sp+'.'+pattern;
|
|
consume(_EQ);
|
|
if assigned(ImplIntf) and
|
|
(token=_ID) then
|
|
ImplIntf.AddMapping(hs,pattern);
|
|
consume(_ID);
|
|
result:=true;
|
|
exit;
|
|
end;
|
|
|
|
if assigned(genericparams) and assigned(current_genericdef) then
|
|
Message(parser_f_no_generic_inside_generic);
|
|
|
|
{ method ? }
|
|
srsym:=nil;
|
|
if not assigned(astruct) and
|
|
(symtablestack.top.symtablelevel=main_program_level) and
|
|
try_to_consume(_POINT) then
|
|
begin
|
|
repeat
|
|
classstartfilepos:=procstartfilepos;
|
|
searchagain:=false;
|
|
|
|
{ throw the error at the right location }
|
|
oldfilepos:=current_filepos;
|
|
current_filepos:=procstartfilepos;
|
|
if not assigned(astruct) and not assigned(srsym) then
|
|
srsym:=search_object_name(sp,true);
|
|
current_filepos:=oldfilepos;
|
|
|
|
{ consume proc name }
|
|
procstartfilepos:=current_tokenpos;
|
|
consume_proc_name;
|
|
{ qualifier is class name ? }
|
|
if (srsym.typ=typesym) and
|
|
(ttypesym(srsym).typedef.typ in [objectdef,recorddef]) then
|
|
begin
|
|
astruct:=tabstractrecorddef(ttypesym(srsym).typedef);
|
|
if (token<>_POINT) then
|
|
if (potype in [potype_class_constructor,potype_class_destructor]) then
|
|
sp:=lower(sp)
|
|
else
|
|
if (potype=potype_operator) and (optoken=NOTOKEN) then
|
|
parse_operator_name;
|
|
srsym:=tsym(astruct.symtable.Find(sp));
|
|
if assigned(srsym) then
|
|
begin
|
|
if srsym.typ=procsym then
|
|
aprocsym:=tprocsym(srsym)
|
|
else
|
|
if (srsym.typ=typesym) and
|
|
(ttypesym(srsym).typedef.typ in [objectdef,recorddef]) then
|
|
begin
|
|
searchagain:=true;
|
|
consume(_POINT);
|
|
end
|
|
else
|
|
begin
|
|
{ we use a different error message for tp7 so it looks more compatible }
|
|
if (m_fpc in current_settings.modeswitches) then
|
|
Message1(parser_e_overloaded_no_procedure,srsym.realname)
|
|
else
|
|
Message(parser_e_methode_id_expected);
|
|
{ rename the name to an unique name to avoid an
|
|
error when inserting the symbol in the symtable }
|
|
orgsp:=orgsp+'$'+tostr(current_filepos.line);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
MessagePos(procstartfilepos,parser_e_methode_id_expected);
|
|
{ recover by making it a normal procedure instead of method }
|
|
astruct:=nil;
|
|
end;
|
|
end
|
|
else
|
|
MessagePos(classstartfilepos,parser_e_class_id_expected);
|
|
until not searchagain;
|
|
end
|
|
else
|
|
begin
|
|
{ check for constructor/destructor/class operators which are not allowed here }
|
|
if (not parse_only) and
|
|
((potype in [potype_constructor,potype_destructor,
|
|
potype_class_constructor,potype_class_destructor]) or
|
|
((potype=potype_operator) and (m_delphi in current_settings.modeswitches))) then
|
|
Message(parser_e_only_methods_allowed);
|
|
|
|
repeat
|
|
{ only 1 class constructor and destructor is allowed in the class and
|
|
the check was already done with oo_has_class_constructor or
|
|
oo_has_class_destructor -> skip searching
|
|
(bug #28801) }
|
|
if (potype in [potype_class_constructor,potype_class_destructor]) then
|
|
break;
|
|
|
|
searchagain:=false;
|
|
current_tokenpos:=procstartfilepos;
|
|
|
|
if (potype=potype_operator)and(optoken=NOTOKEN) then
|
|
parse_operator_name;
|
|
|
|
srsym:=tsym(symtablestack.top.Find(sp));
|
|
|
|
{ Also look in the globalsymtable if we didn't found
|
|
the symbol in the localsymtable }
|
|
if not assigned(srsym) and
|
|
not(parse_only) and
|
|
(symtablestack.top=current_module.localsymtable) and
|
|
assigned(current_module.globalsymtable) then
|
|
srsym:=tsym(current_module.globalsymtable.Find(sp));
|
|
|
|
{ Check if overloaded is a procsym }
|
|
if assigned(srsym) then
|
|
begin
|
|
if srsym.typ=procsym then
|
|
aprocsym:=tprocsym(srsym)
|
|
else
|
|
begin
|
|
{ when the other symbol is a unit symbol then hide the unit
|
|
symbol, this is not supported in tp7 }
|
|
if not(m_tp7 in current_settings.modeswitches) and
|
|
(srsym.typ=unitsym) then
|
|
begin
|
|
HideSym(srsym);
|
|
searchagain:=true;
|
|
end
|
|
else
|
|
if (m_delphi in current_settings.modeswitches) and
|
|
(srsym.typ=absolutevarsym) and
|
|
([vo_is_funcret,vo_is_result]*tabstractvarsym(srsym).varoptions=[vo_is_funcret]) then
|
|
begin
|
|
HideSym(srsym);
|
|
searchagain:=true;
|
|
end
|
|
else
|
|
begin
|
|
{ we use a different error message for tp7 so it looks more compatible }
|
|
if (m_fpc in current_settings.modeswitches) then
|
|
Message1(parser_e_overloaded_no_procedure,srsym.realname)
|
|
else
|
|
Message1(sym_e_duplicate_id,srsym.realname);
|
|
{ rename the name to an unique name to avoid an
|
|
error when inserting the symbol in the symtable }
|
|
orgsp:=orgsp+'$'+tostr(current_filepos.line);
|
|
end;
|
|
end;
|
|
end;
|
|
until not searchagain;
|
|
end;
|
|
|
|
{ test again if assigned, it can be reset to recover }
|
|
if not assigned(aprocsym) then
|
|
begin
|
|
{ create a new procsym and set the real filepos }
|
|
current_tokenpos:=procstartfilepos;
|
|
{ for operator we have only one procsym for each overloaded
|
|
operation }
|
|
if (potype=potype_operator) then
|
|
begin
|
|
aprocsym:=Tprocsym(symtablestack.top.Find(sp));
|
|
if aprocsym=nil then
|
|
aprocsym:=cprocsym.create('$'+sp);
|
|
end
|
|
else
|
|
if (potype in [potype_class_constructor,potype_class_destructor]) then
|
|
aprocsym:=cprocsym.create('$'+lower(sp))
|
|
else
|
|
aprocsym:=cprocsym.create(orgsp);
|
|
symtablestack.top.insert(aprocsym);
|
|
end;
|
|
end;
|
|
|
|
{ to get the correct symtablelevel we must ignore ObjectSymtables }
|
|
st:=nil;
|
|
checkstack:=symtablestack.stack;
|
|
while assigned(checkstack) do
|
|
begin
|
|
st:=checkstack^.symtable;
|
|
if st.symtabletype in [staticsymtable,globalsymtable,localsymtable] then
|
|
break;
|
|
checkstack:=checkstack^.next;
|
|
end;
|
|
pd:=cprocdef.create(st.symtablelevel+1,not assigned(genericdef));
|
|
pd.struct:=astruct;
|
|
pd.procsym:=aprocsym;
|
|
pd.proctypeoption:=potype;
|
|
|
|
if assigned(genericparams) then
|
|
begin
|
|
include(pd.defoptions,df_generic);
|
|
{ push the parameter symtable so that constraint definitions are added
|
|
there and not in the owner symtable }
|
|
symtablestack.push(pd.parast);
|
|
{ register the parameters }
|
|
for i:=0 to genericparams.count-1 do
|
|
begin
|
|
ttypesym(genericparams[i]).register_sym;
|
|
tstoreddef(ttypesym(genericparams[i]).typedef).register_def;
|
|
end;
|
|
insert_generic_parameter_types(pd,nil,genericparams);
|
|
symtablestack.pop(pd.parast);
|
|
freegenericparams:=false;
|
|
parse_generic:=true;
|
|
{ also generate a dummy symbol if none exists already }
|
|
if assigned(astruct) then
|
|
dummysym:=tsym(astruct.symtable.find(spnongen))
|
|
else
|
|
begin
|
|
dummysym:=tsym(symtablestack.top.find(spnongen));
|
|
if not assigned(dummysym) and
|
|
(symtablestack.top=current_module.localsymtable) and
|
|
assigned(current_module.globalsymtable) then
|
|
dummysym:=tsym(current_module.globalsymtable.find(spnongen));
|
|
end;
|
|
if not assigned(dummysym) then
|
|
begin
|
|
dummysym:=ctypesym.create(orgspnongen,cundefineddef.create(true),true);
|
|
if assigned(astruct) then
|
|
astruct.symtable.insert(dummysym)
|
|
else
|
|
symtablestack.top.insert(dummysym);
|
|
end;
|
|
include(dummysym.symoptions,sp_generic_dummy);
|
|
{ start token recorder for the declaration }
|
|
pd.init_genericdecl;
|
|
current_scanner.startrecordtokens(pd.genericdecltokenbuf);
|
|
end;
|
|
|
|
if assigned(genericdef) and not assigned(genericparams) then
|
|
insert_generic_parameter_types(pd,tstoreddef(genericdef),generictypelist);
|
|
|
|
{ methods inherit df_generic or df_specialization from the objectdef }
|
|
if assigned(pd.struct) and
|
|
(pd.parast.symtablelevel=normal_function_level) then
|
|
begin
|
|
if (df_generic in pd.struct.defoptions) then
|
|
begin
|
|
include(pd.defoptions,df_generic);
|
|
parse_generic:=true;
|
|
end;
|
|
if (df_specialization in pd.struct.defoptions) then
|
|
begin
|
|
if assigned(current_specializedef) then
|
|
begin
|
|
include(pd.defoptions,df_specialization);
|
|
{ Find corresponding genericdef, we need it later to
|
|
replay the tokens to generate the body }
|
|
if not assigned(pd.struct.genericdef) then
|
|
internalerror(200512113);
|
|
genericst:=pd.struct.genericdef.GetSymtable(gs_record);
|
|
if not assigned(genericst) then
|
|
internalerror(200512114);
|
|
|
|
{ when searching for the correct procdef to use as genericdef we need to ignore
|
|
everything except procdefs so that we can find the correct indices }
|
|
index:=0;
|
|
found:=false;
|
|
for i:=0 to pd.owner.deflist.count-1 do
|
|
begin
|
|
if tdef(pd.owner.deflist[i]).typ<>procdef then
|
|
continue;
|
|
if pd.owner.deflist[i]=pd then
|
|
begin
|
|
found:=true;
|
|
break;
|
|
end;
|
|
inc(index);
|
|
end;
|
|
if not found then
|
|
internalerror(2014052301);
|
|
|
|
for i:=0 to genericst.deflist.count-1 do
|
|
begin
|
|
if tdef(genericst.deflist[i]).typ<>procdef then
|
|
continue;
|
|
if index=0 then
|
|
pd.genericdef:=tstoreddef(genericst.deflist[i]);
|
|
dec(index);
|
|
end;
|
|
|
|
if not assigned(pd.genericdef) or
|
|
(pd.genericdef.typ<>procdef) then
|
|
internalerror(200512115);
|
|
end
|
|
else
|
|
Message(parser_e_explicit_method_implementation_for_specializations_not_allowed);
|
|
end;
|
|
end;
|
|
|
|
{ methods need to be exported }
|
|
if assigned(astruct) and
|
|
(
|
|
(symtablestack.top.symtabletype in [ObjectSymtable,recordsymtable]) or
|
|
(symtablestack.top.symtablelevel=main_program_level)
|
|
) then
|
|
include(pd.procoptions,po_global);
|
|
|
|
{ symbol options that need to be kept per procdef }
|
|
pd.fileinfo:=procstartfilepos;
|
|
pd.visibility:=symtablestack.top.currentvisibility;
|
|
if symtablestack.top.currentlyoptional then
|
|
include(pd.procoptions,po_optional);
|
|
|
|
{ parse parameters }
|
|
if token=_LKLAMMER then
|
|
begin
|
|
old_current_structdef:=nil;
|
|
old_current_genericdef:=current_genericdef;
|
|
old_current_specializedef:=nil;
|
|
{ Add ObjectSymtable to be able to find nested type definitions }
|
|
popclass:=0;
|
|
if assigned(pd.struct) and
|
|
(pd.parast.symtablelevel>=normal_function_level) and
|
|
not(symtablestack.top.symtabletype in [ObjectSymtable,recordsymtable]) then
|
|
begin
|
|
popclass:=push_nested_hierarchy(pd.struct);
|
|
old_current_structdef:=current_structdef;
|
|
old_current_specializedef:=current_specializedef;
|
|
current_structdef:=pd.struct;
|
|
if assigned(current_structdef) and (df_generic in current_structdef.defoptions) then
|
|
current_genericdef:=current_structdef;
|
|
if assigned(current_structdef) and (df_specialization in current_structdef.defoptions) then
|
|
current_specializedef:=current_structdef;
|
|
end;
|
|
if pd.is_generic then
|
|
current_genericdef:=pd;
|
|
{ Add parameter symtable }
|
|
if pd.parast.symtabletype<>staticsymtable then
|
|
symtablestack.push(pd.parast);
|
|
parse_parameter_dec(pd);
|
|
if pd.parast.symtabletype<>staticsymtable then
|
|
symtablestack.pop(pd.parast);
|
|
current_genericdef:=old_current_genericdef;
|
|
if popclass>0 then
|
|
begin
|
|
current_structdef:=old_current_structdef;
|
|
current_specializedef:=old_current_specializedef;
|
|
dec(popclass,pop_nested_hierarchy(pd.struct));
|
|
if popclass<>0 then
|
|
internalerror(201011260); // 11 nov 2010 index 0
|
|
end;
|
|
end;
|
|
|
|
parse_generic:=old_parse_generic;
|
|
result:=true;
|
|
end;
|
|
|
|
|
|
procedure parse_proc_dec_finish(pd:tprocdef;isclassmethod:boolean;astruct:tabstractrecorddef);
|
|
var
|
|
locationstr: string;
|
|
i: integer;
|
|
found: boolean;
|
|
|
|
procedure read_returndef(pd: tprocdef);
|
|
var
|
|
popclass: integer;
|
|
old_parse_generic: boolean;
|
|
old_current_structdef: tabstractrecorddef;
|
|
old_current_genericdef,
|
|
old_current_specializedef: tstoreddef;
|
|
begin
|
|
old_parse_generic:=parse_generic;
|
|
{ Add ObjectSymtable to be able to find generic type definitions }
|
|
popclass:=0;
|
|
old_current_structdef:=nil;
|
|
old_current_genericdef:=current_genericdef;
|
|
old_current_specializedef:=current_specializedef;
|
|
current_genericdef:=nil;
|
|
current_specializedef:=nil;
|
|
if assigned(pd.struct) and
|
|
(pd.parast.symtablelevel>=normal_function_level) and
|
|
not (symtablestack.top.symtabletype in [ObjectSymtable,recordsymtable]) then
|
|
begin
|
|
popclass:=push_nested_hierarchy(pd.struct);
|
|
old_current_structdef:=current_structdef;
|
|
current_structdef:=pd.struct;
|
|
end;
|
|
if df_generic in pd.defoptions then
|
|
begin
|
|
if pd.is_generic then
|
|
current_genericdef:=pd
|
|
else if assigned(pd.struct) then
|
|
current_genericdef:=pd.struct
|
|
else
|
|
internalerror(2016090202);
|
|
end;
|
|
if df_specialization in pd.defoptions then
|
|
begin
|
|
if pd.is_specialization then
|
|
current_specializedef:=pd
|
|
else if assigned(pd.struct) then
|
|
current_specializedef:=pd.struct
|
|
else
|
|
internalerror(2016090203);
|
|
end;
|
|
parse_generic:=(df_generic in pd.defoptions);
|
|
if pd.is_generic or pd.is_specialization then
|
|
symtablestack.push(pd.parast);
|
|
single_type(pd.returndef,[stoAllowSpecialization]);
|
|
|
|
// Issue #24863, enabled only for the main progra commented out for now because it breaks building of RTL and needs extensive
|
|
// testing and/or RTL patching.
|
|
{
|
|
if ((pd.returndef=cvarianttype) or (pd.returndef=colevarianttype)) and
|
|
not(cs_compilesystem in current_settings.moduleswitches) then
|
|
current_module.flags:=current_module.flags or uf_uses_variants;
|
|
}
|
|
if is_dispinterface(pd.struct) and not is_automatable(pd.returndef) then
|
|
Message1(type_e_not_automatable,pd.returndef.typename);
|
|
|
|
if pd.is_generic or pd.is_specialization then
|
|
symtablestack.pop(pd.parast);
|
|
if popclass>0 then
|
|
begin
|
|
current_structdef:=old_current_structdef;
|
|
dec(popclass,pop_nested_hierarchy(pd.struct));
|
|
if popclass<>0 then
|
|
internalerror(201012020);
|
|
end;
|
|
current_genericdef:=old_current_genericdef;
|
|
current_specializedef:=old_current_specializedef;
|
|
parse_generic:=old_parse_generic;
|
|
end;
|
|
|
|
begin
|
|
locationstr:='';
|
|
case pd.proctypeoption of
|
|
potype_procedure:
|
|
begin
|
|
pd.returndef:=voidtype;
|
|
if isclassmethod then
|
|
include(pd.procoptions,po_classmethod);
|
|
end;
|
|
potype_function:
|
|
begin
|
|
if try_to_consume(_COLON) then
|
|
begin
|
|
read_returndef(pd);
|
|
if (target_info.system in [system_m68k_amiga]) then
|
|
begin
|
|
if (idtoken=_LOCATION) then
|
|
begin
|
|
if po_explicitparaloc in pd.procoptions then
|
|
begin
|
|
consume(_LOCATION);
|
|
locationstr:=cstringpattern;
|
|
consume(_CSTRING);
|
|
end
|
|
else
|
|
{ I guess this needs a new message... (KB) }
|
|
Message(parser_e_paraloc_all_paras);
|
|
end
|
|
else
|
|
begin
|
|
if po_explicitparaloc in pd.procoptions then
|
|
{ assign default locationstr, if none specified }
|
|
{ and we've arguments with explicit paraloc }
|
|
locationstr:='D0';
|
|
end;
|
|
end;
|
|
|
|
end
|
|
else
|
|
begin
|
|
if (
|
|
parse_only and
|
|
not(is_interface(pd.struct))
|
|
) or
|
|
(m_repeat_forward in current_settings.modeswitches) then
|
|
begin
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
end;
|
|
if isclassmethod then
|
|
include(pd.procoptions,po_classmethod);
|
|
end;
|
|
potype_constructor,
|
|
potype_class_constructor:
|
|
begin
|
|
if not isclassmethod and
|
|
assigned(pd) and
|
|
assigned(pd.struct) then
|
|
begin
|
|
{ Set return type, class constructors return the
|
|
created instance, 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}
|
|
end
|
|
else
|
|
pd.returndef:=voidtype;
|
|
end;
|
|
potype_class_destructor,
|
|
potype_destructor:
|
|
begin
|
|
if assigned(pd) then
|
|
pd.returndef:=voidtype;
|
|
end;
|
|
potype_operator:
|
|
begin
|
|
{ operators always need to be searched in all units (that
|
|
contain operators) }
|
|
include(pd.procoptions,po_overload);
|
|
pd.procsym.owner.includeoption(sto_has_operator);
|
|
if pd.parast.symtablelevel>normal_function_level then
|
|
Message(parser_e_no_local_operator);
|
|
if isclassmethod then
|
|
begin
|
|
include(pd.procoptions,po_classmethod);
|
|
{ any class operator is also static }
|
|
include(pd.procoptions,po_staticmethod);
|
|
end;
|
|
if token<>_ID then
|
|
begin
|
|
if not(m_result in current_settings.modeswitches) then
|
|
consume(_ID);
|
|
end
|
|
else
|
|
begin
|
|
pd.resultname:=stringdup(orgpattern);
|
|
consume(_ID);
|
|
end;
|
|
{ operators without result (management operators) }
|
|
if optoken in [_OP_INITIALIZE, _OP_FINALIZE, _OP_ADDREF, _OP_COPY] then
|
|
begin
|
|
{ single var parameter to point the record }
|
|
if (optoken in [_OP_INITIALIZE, _OP_FINALIZE, _OP_ADDREF]) and
|
|
(
|
|
(pd.parast.SymList.Count<>1) or
|
|
(tparavarsym(pd.parast.SymList[0]).vardef<>pd.struct) or
|
|
(tparavarsym(pd.parast.SymList[0]).varspez<>vs_var)
|
|
) then
|
|
Message(parser_e_overload_impossible)
|
|
{ constref (source) and var (dest) parameter to point the records }
|
|
else if (optoken=_OP_COPY) and
|
|
(
|
|
(pd.parast.SymList.Count<>2) or
|
|
(tparavarsym(pd.parast.SymList[0]).vardef<>pd.struct) or
|
|
(tparavarsym(pd.parast.SymList[0]).varspez<>vs_constref) or
|
|
(tparavarsym(pd.parast.SymList[1]).vardef<>pd.struct) or
|
|
(tparavarsym(pd.parast.SymList[1]).varspez<>vs_var)
|
|
) then
|
|
Message(parser_e_overload_impossible);
|
|
|
|
trecordsymtable(pd.procsym.Owner).includemanagementoperator(
|
|
token2managementoperator(optoken));
|
|
pd.returndef:=voidtype
|
|
end
|
|
else
|
|
if not try_to_consume(_COLON) then
|
|
begin
|
|
consume(_COLON);
|
|
pd.returndef:=generrordef;
|
|
consume_all_until(_SEMICOLON);
|
|
end
|
|
else
|
|
begin
|
|
read_returndef(pd);
|
|
{ check that class operators have either return type of structure or }
|
|
{ at least one argument of that type }
|
|
if (po_classmethod in pd.procoptions) and
|
|
(pd.returndef <> pd.struct) then
|
|
begin
|
|
found:=false;
|
|
for i := 0 to pd.parast.SymList.Count - 1 do
|
|
if tparavarsym(pd.parast.SymList[i]).vardef=pd.struct then
|
|
begin
|
|
found:=true;
|
|
break;
|
|
end;
|
|
if not found then
|
|
if assigned(pd.struct) then
|
|
Message1(parser_e_at_least_one_argument_must_be_of_type,pd.struct.RttiName)
|
|
else
|
|
MessagePos(pd.fileinfo,type_e_type_id_expected);
|
|
end;
|
|
if not assigned(pd.struct) or assigned(astruct) then
|
|
begin
|
|
if (optoken in [_ASSIGNMENT,_OP_EXPLICIT]) and
|
|
equal_defs(pd.returndef,tparavarsym(pd.parast.SymList[0]).vardef) and
|
|
(pd.returndef.typ<>undefineddef) and (tparavarsym(pd.parast.SymList[0]).vardef.typ<>undefineddef) then
|
|
message(parser_e_no_such_assignment)
|
|
else if not isoperatoracceptable(pd,optoken) then
|
|
Message(parser_e_overload_impossible);
|
|
end;
|
|
end;
|
|
end;
|
|
else
|
|
internalerror(2015052202);
|
|
end;
|
|
|
|
{ file types can't be function results }
|
|
if assigned(pd) and
|
|
(pd.returndef.typ=filedef) then
|
|
message(parser_e_illegal_function_result);
|
|
{ support procedure proc stdcall export; }
|
|
if not(check_proc_directive(false)) then
|
|
begin
|
|
if (token=_COLON) and not(Assigned(pd) and is_void(pd.returndef)) then
|
|
begin
|
|
message(parser_e_field_not_allowed_here);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
consume(_SEMICOLON);
|
|
end;
|
|
|
|
if locationstr<>'' then
|
|
begin
|
|
if not(paramanager.parsefuncretloc(pd,upper(locationstr))) then
|
|
{ I guess this needs a new message... (KB) }
|
|
message(parser_e_illegal_explicit_paraloc);
|
|
end;
|
|
end;
|
|
|
|
function parse_proc_dec(isclassmethod:boolean;astruct:tabstractrecorddef;isgeneric:boolean):tprocdef;
|
|
var
|
|
pd : tprocdef;
|
|
old_block_type : tblock_type;
|
|
recover : boolean;
|
|
|
|
procedure finish_intf_mapping;
|
|
begin
|
|
if token=_COLON then
|
|
begin
|
|
message(parser_e_field_not_allowed_here);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
consume(_SEMICOLON);
|
|
end;
|
|
|
|
begin
|
|
pd:=nil;
|
|
recover:=false;
|
|
case token of
|
|
_FUNCTION :
|
|
begin
|
|
consume(_FUNCTION);
|
|
if parse_proc_head(astruct,potype_function,isgeneric,nil,nil,pd) then
|
|
begin
|
|
{ pd=nil when it is a interface mapping }
|
|
if assigned(pd) then
|
|
parse_proc_dec_finish(pd,isclassmethod,astruct)
|
|
else
|
|
finish_intf_mapping;
|
|
end
|
|
else
|
|
begin
|
|
{ recover }
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
recover:=true;
|
|
end;
|
|
end;
|
|
|
|
_PROCEDURE :
|
|
begin
|
|
consume(_PROCEDURE);
|
|
if parse_proc_head(astruct,potype_procedure,isgeneric,nil,nil,pd) then
|
|
begin
|
|
{ pd=nil when it is an interface mapping }
|
|
if assigned(pd) then
|
|
parse_proc_dec_finish(pd,isclassmethod,astruct)
|
|
else
|
|
finish_intf_mapping;
|
|
end
|
|
else
|
|
recover:=true;
|
|
end;
|
|
|
|
_CONSTRUCTOR :
|
|
begin
|
|
consume(_CONSTRUCTOR);
|
|
if isclassmethod then
|
|
recover:=not parse_proc_head(astruct,potype_class_constructor,false,nil,nil,pd)
|
|
else
|
|
recover:=not parse_proc_head(astruct,potype_constructor,false,nil,nil,pd);
|
|
if not recover then
|
|
parse_proc_dec_finish(pd,isclassmethod,astruct);
|
|
end;
|
|
|
|
_DESTRUCTOR :
|
|
begin
|
|
consume(_DESTRUCTOR);
|
|
if isclassmethod then
|
|
recover:=not parse_proc_head(astruct,potype_class_destructor,false,nil,nil,pd)
|
|
else
|
|
recover:=not parse_proc_head(astruct,potype_destructor,false,nil,nil,pd);
|
|
if not recover then
|
|
parse_proc_dec_finish(pd,isclassmethod,astruct);
|
|
end;
|
|
else
|
|
if (token=_OPERATOR) or
|
|
(isclassmethod and (idtoken=_OPERATOR)) then
|
|
begin
|
|
{ we need to set the block type to bt_body, so that operator names
|
|
like ">", "=>" or "<>" are parsed correctly instead of e.g.
|
|
_LSHARPBRACKET and _RSHARPBRACKET for "<>" }
|
|
old_block_type:=block_type;
|
|
block_type:=bt_body;
|
|
consume(_OPERATOR);
|
|
parse_proc_head(astruct,potype_operator,false,nil,nil,pd);
|
|
block_type:=old_block_type;
|
|
if assigned(pd) then
|
|
parse_proc_dec_finish(pd,isclassmethod,astruct)
|
|
else
|
|
begin
|
|
{ recover }
|
|
try_to_consume(_ID);
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
recover:=true;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
if recover and not(check_proc_directive(false)) then
|
|
begin
|
|
if (token=_COLON) and not(Assigned(pd) and is_void(pd.returndef)) then
|
|
begin
|
|
message(parser_e_field_not_allowed_here);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
consume(_SEMICOLON);
|
|
end;
|
|
|
|
{ we've parsed the final semicolon, so stop recording tokens }
|
|
if assigned(pd) and
|
|
(df_generic in pd.defoptions) and
|
|
assigned(pd.genericdecltokenbuf) then
|
|
current_scanner.stoprecordtokens;
|
|
|
|
result:=pd;
|
|
end;
|
|
|
|
|
|
function parse_record_method_dec(astruct: tabstractrecorddef; is_classdef: boolean;hadgeneric:boolean): tprocdef;
|
|
var
|
|
oldparse_only: boolean;
|
|
begin
|
|
oldparse_only:=parse_only;
|
|
parse_only:=true;
|
|
result:=parse_proc_dec(is_classdef,astruct,hadgeneric);
|
|
|
|
{ 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_record_proc_directives(result);
|
|
|
|
{ since records have no inheritance, don't allow non-static
|
|
class methods. Delphi does the same. }
|
|
if (result.proctypeoption<>potype_operator) and
|
|
is_classdef and
|
|
not (po_staticmethod in result.procoptions) then
|
|
MessagePos(result.fileinfo, parser_e_class_methods_only_static_in_records);
|
|
|
|
// 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(result,[hcc_check]);
|
|
|
|
{ add definition to procsym }
|
|
proc_add_definition(result);
|
|
end;
|
|
|
|
maybe_parse_hint_directives(result);
|
|
|
|
parse_only:=oldparse_only;
|
|
end;
|
|
|
|
|
|
procedure insert_record_hidden_paras(astruct: trecorddef);
|
|
var
|
|
pd: tdef;
|
|
i: longint;
|
|
oldpos : tfileposinfo;
|
|
oldparse_only: boolean;
|
|
begin
|
|
// handle calling conventions of record methods
|
|
oldpos:=current_filepos;
|
|
oldparse_only:=parse_only;
|
|
parse_only:=true;
|
|
{ don't keep track of procdefs in a separate list, because the
|
|
compiler may add additional procdefs (e.g. property wrappers for
|
|
the jvm backend) }
|
|
for i := 0 to astruct.symtable.deflist.count - 1 do
|
|
begin
|
|
pd:=tdef(astruct.symtable.deflist[i]);
|
|
if pd.typ<>procdef then
|
|
continue;
|
|
current_filepos:=tprocdef(pd).fileinfo;
|
|
handle_calling_convention(tprocdef(pd),[hcc_insert_hidden_paras]);
|
|
end;
|
|
parse_only:=oldparse_only;
|
|
current_filepos:=oldpos;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Procedure directive handlers
|
|
****************************************************************************}
|
|
|
|
procedure pd_compilerproc(pd:tabstractprocdef);
|
|
var
|
|
v : Tconstexprint;
|
|
begin
|
|
{ check for optional syssym index }
|
|
if try_to_consume(_COLON) then
|
|
begin
|
|
v:=get_intconst;
|
|
if (v<int64(low(longint))) or (v>int64(high(longint))) then
|
|
message3(type_e_range_check_error_bounds,tostr(v),tostr(low(longint)),tostr(high(longint)))
|
|
else if not assigned(tsyssym.find_by_number(longint(v.svalue))) then
|
|
message1(parser_e_invalid_internal_function_index,tostr(v))
|
|
else
|
|
tprocdef(pd).extnumber:=longint(v.svalue);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_far(pd:tabstractprocdef);
|
|
begin
|
|
pd.declared_far;
|
|
end;
|
|
|
|
procedure pd_near(pd:tabstractprocdef);
|
|
begin
|
|
pd.declared_near;
|
|
end;
|
|
|
|
procedure pd_export(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304264);
|
|
if assigned(tprocdef(pd).struct) then
|
|
Message(parser_e_methods_dont_be_export);
|
|
if pd.parast.symtablelevel>normal_function_level then
|
|
Message(parser_e_dont_nest_export);
|
|
end;
|
|
|
|
procedure pd_forward(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304265);
|
|
tprocdef(pd).forwarddef:=true;
|
|
end;
|
|
|
|
|
|
procedure pd_alias(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304266);
|
|
consume(_COLON);
|
|
tprocdef(pd).aliasnames.insert(get_stringconst);
|
|
include(pd.procoptions,po_has_public_name);
|
|
end;
|
|
|
|
|
|
procedure pd_public(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304266);
|
|
if try_to_consume(_NAME) then
|
|
begin
|
|
tprocdef(pd).aliasnames.insert(get_stringconst);
|
|
include(pd.procoptions,po_has_public_name);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure pd_asmname(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304267);
|
|
if token=_CCHAR then
|
|
begin
|
|
tprocdef(pd).aliasnames.insert(target_info.Cprefix+pattern);
|
|
consume(_CCHAR)
|
|
end
|
|
else
|
|
begin
|
|
tprocdef(pd).aliasnames.insert(target_info.Cprefix+cstringpattern);
|
|
consume(_CSTRING);
|
|
end;
|
|
{ we don't need anything else }
|
|
tprocdef(pd).forwarddef:=false;
|
|
end;
|
|
|
|
|
|
procedure pd_internconst(pd:tabstractprocdef);
|
|
|
|
var v:Tconstexprint;
|
|
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304268);
|
|
consume(_COLON);
|
|
v:=get_intconst;
|
|
if (v<int64(low(longint))) or (v>int64(high(longint))) then
|
|
message3(type_e_range_check_error_bounds,tostr(v),tostr(low(longint)),tostr(high(longint)))
|
|
else
|
|
Tprocdef(pd).extnumber:=longint(v.svalue);
|
|
end;
|
|
|
|
|
|
procedure pd_internproc(pd:tabstractprocdef);
|
|
|
|
var v:Tconstexprint;
|
|
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304268);
|
|
consume(_COLON);
|
|
v:=get_intconst;
|
|
if (v<int64(low(longint))) or (v>int64(high(longint))) then
|
|
message3(type_e_range_check_error_bounds,tostr(v),tostr(low(longint)),tostr(high(longint)))
|
|
else
|
|
Tprocdef(pd).extnumber:=longint(v.svalue);
|
|
{ the proc is defined }
|
|
tprocdef(pd).forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_interrupt(pd:tabstractprocdef);
|
|
begin
|
|
if pd.parast.symtablelevel>normal_function_level then
|
|
Message(parser_e_dont_nest_interrupt);
|
|
end;
|
|
|
|
procedure pd_abstract(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200304269);
|
|
if is_objectpascal_helper(tprocdef(pd).struct) then
|
|
Message1(parser_e_not_allowed_in_helper, arraytokeninfo[_ABSTRACT].str);
|
|
if assigned(tprocdef(pd).struct) and
|
|
(oo_is_sealed in tprocdef(pd).struct.objectoptions) then
|
|
Message(parser_e_sealed_class_cannot_have_abstract_methods)
|
|
else if (po_virtualmethod in pd.procoptions) then
|
|
begin
|
|
include(pd.procoptions,po_abstractmethod);
|
|
{ one more abstract method }
|
|
inc(tobjectdef(pd.owner.defowner).abstractcnt);
|
|
end
|
|
else
|
|
Message(parser_e_only_virtual_methods_abstract);
|
|
{ the method is defined }
|
|
tprocdef(pd).forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_final(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200910170);
|
|
if is_objectpascal_helper(tprocdef(pd).struct) and
|
|
(m_objfpc in current_settings.modeswitches) then
|
|
Message1(parser_e_not_allowed_in_helper, arraytokeninfo[_FINAL].str);
|
|
if (po_virtualmethod in pd.procoptions) or
|
|
(is_javaclass(tprocdef(pd).struct) and
|
|
(po_classmethod in pd.procoptions)) then
|
|
include(pd.procoptions,po_finalmethod)
|
|
else
|
|
Message(parser_e_only_virtual_methods_final);
|
|
end;
|
|
|
|
procedure pd_enumerator(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200910250);
|
|
if (token = _ID) then
|
|
begin
|
|
if pattern='MOVENEXT' then
|
|
begin
|
|
if oo_has_enumerator_movenext in tprocdef(pd).struct.objectoptions then
|
|
message(parser_e_only_one_enumerator_movenext);
|
|
pd.calcparas;
|
|
if (pd.proctypeoption = potype_function) and is_boolean(pd.returndef) and
|
|
(pd.minparacount = 0) then
|
|
begin
|
|
include(tprocdef(pd).struct.objectoptions, oo_has_enumerator_movenext);
|
|
include(pd.procoptions,po_enumerator_movenext);
|
|
end
|
|
else
|
|
Message(parser_e_enumerator_movenext_is_not_valid)
|
|
end
|
|
else
|
|
Message1(parser_e_invalid_enumerator_identifier, pattern);
|
|
consume(token);
|
|
end
|
|
else
|
|
Message(parser_e_enumerator_identifier_required);
|
|
end;
|
|
|
|
procedure pd_virtual(pd:tabstractprocdef);
|
|
{$ifdef WITHDMT}
|
|
var
|
|
pt : tnode;
|
|
{$endif WITHDMT}
|
|
begin
|
|
if (not assigned(pd.owner.defowner) or
|
|
not is_java_class_or_interface(tdef(pd.owner.defowner))) and
|
|
(po_external in pd.procoptions) then
|
|
Message1(parser_e_proc_dir_conflict,'EXTERNAL');
|
|
|
|
if pd.typ<>procdef then
|
|
internalerror(2003042610);
|
|
if (pd.proctypeoption=potype_constructor) and
|
|
is_object(tprocdef(pd).struct) then
|
|
Message(parser_e_constructor_cannot_be_not_virtual);
|
|
if pd.is_generic then
|
|
message(parser_e_genfuncs_cannot_be_virtual);
|
|
if is_objectpascal_helper(tprocdef(pd).struct) and
|
|
(m_objfpc in current_settings.modeswitches) then
|
|
Message1(parser_e_not_allowed_in_helper, arraytokeninfo[_VIRTUAL].str);
|
|
{$ifdef WITHDMT}
|
|
if is_object(tprocdef(pd).struct) and
|
|
(token<>_SEMICOLON) then
|
|
begin
|
|
{ any type of parameter is allowed here! }
|
|
pt:=comp_expr(true);
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(pd.procoptions,po_msgint);
|
|
pd.messageinf.i:=pt.value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
disposetree(pt);
|
|
end;
|
|
{$endif WITHDMT}
|
|
end;
|
|
|
|
|
|
procedure pd_dispid(pd:tabstractprocdef);
|
|
|
|
var pt:Tnode;
|
|
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200604301);
|
|
pt:=comp_expr([ef_accept_equal]);
|
|
if is_constintnode(pt) then
|
|
if (Tordconstnode(pt).value<int64(low(longint))) or (Tordconstnode(pt).value>int64(high(longint))) then
|
|
message3(type_e_range_check_error_bounds,tostr(Tordconstnode(pt).value),tostr(low(longint)),tostr(high(longint)))
|
|
else
|
|
Tprocdef(pd).dispid:=Tordconstnode(pt).value.svalue
|
|
else
|
|
message(parser_e_dispid_must_be_ord_const);
|
|
pt.free;
|
|
end;
|
|
|
|
|
|
procedure pd_static(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(2013032001);
|
|
if not assigned(tprocdef(pd).struct) then
|
|
internalerror(2013032002);
|
|
include(tprocdef(pd).procsym.symoptions,sp_static);
|
|
{ "static" is not allowed for operators or normal methods (except in objects) }
|
|
if (pd.proctypeoption=potype_operator) or
|
|
(
|
|
not (po_classmethod in pd.procoptions) and
|
|
not is_object(tprocdef(pd).struct)
|
|
)
|
|
then
|
|
Message1(parser_e_dir_not_allowed,arraytokeninfo[_STATIC].str);
|
|
include(pd.procoptions,po_staticmethod);
|
|
end;
|
|
|
|
procedure pd_override(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(2003042611);
|
|
if is_objectpascal_helper(tprocdef(pd).struct) then
|
|
begin
|
|
if m_objfpc in current_settings.modeswitches then
|
|
Message1(parser_e_not_allowed_in_helper, arraytokeninfo[_OVERRIDE].str)
|
|
end
|
|
else if not(is_class_or_interface_or_objc_or_java(tprocdef(pd).struct)) then
|
|
Message(parser_e_no_object_override)
|
|
else if is_objccategory(tprocdef(pd).struct) then
|
|
Message(parser_e_no_category_override)
|
|
else if (po_external in pd.procoptions) and
|
|
not is_objc_class_or_protocol(tprocdef(pd).struct) and
|
|
not is_cppclass(tprocdef(pd).struct) and
|
|
not is_java_class_or_interface(tprocdef(pd).struct) then
|
|
Message1(parser_e_proc_dir_conflict,'OVERRIDE');
|
|
end;
|
|
|
|
procedure pd_overload(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(2003042612);
|
|
include(tprocdef(pd).procsym.symoptions,sp_has_overloaded);
|
|
end;
|
|
|
|
procedure pd_message(pd:tabstractprocdef);
|
|
var
|
|
pt : tnode;
|
|
paracnt : longint;
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(2003042613);
|
|
if is_objectpascal_helper(tprocdef(pd).struct) then
|
|
begin
|
|
if m_objfpc in current_settings.modeswitches then
|
|
Message1(parser_e_not_allowed_in_helper, arraytokeninfo[_MESSAGE].str);
|
|
end
|
|
else
|
|
if not is_class(tprocdef(pd).struct) and
|
|
not is_objc_class_or_protocol(tprocdef(pd).struct) then
|
|
Message(parser_e_msg_only_for_classes);
|
|
if ([po_msgstr,po_msgint]*pd.procoptions)<>[] then
|
|
Message(parser_e_multiple_messages);
|
|
{ check parameter type }
|
|
if not is_objc_class_or_protocol(tprocdef(pd).struct) then
|
|
begin
|
|
if po_external in pd.procoptions then
|
|
Message1(parser_e_proc_dir_conflict,'MESSAGE');
|
|
paracnt:=0;
|
|
pd.parast.SymList.ForEachCall(@check_msg_para,@paracnt);
|
|
if paracnt<>1 then
|
|
Message(parser_e_ill_msg_param);
|
|
end;
|
|
pt:=comp_expr([ef_accept_equal]);
|
|
{ message is 1-character long }
|
|
if is_constcharnode(pt) then
|
|
begin
|
|
include(pd.procoptions,po_msgstr);
|
|
tprocdef(pd).messageinf.str:=stringdup(chr(byte(tordconstnode(pt).value.uvalue and $FF)));
|
|
end
|
|
else if pt.nodetype=stringconstn then
|
|
begin
|
|
include(pd.procoptions,po_msgstr);
|
|
if (tstringconstnode(pt).len>255) then
|
|
Message(parser_e_message_string_too_long);
|
|
tprocdef(pd).messageinf.str:=stringdup(tstringconstnode(pt).value_str);
|
|
end
|
|
else
|
|
if is_constintnode(pt) and
|
|
(is_class(tprocdef(pd).struct) or
|
|
is_objectpascal_helper(tprocdef(pd).struct)) then
|
|
begin
|
|
include(pd.procoptions,po_msgint);
|
|
if (Tordconstnode(pt).value<int64(low(Tprocdef(pd).messageinf.i))) or
|
|
(Tordconstnode(pt).value>int64(high(Tprocdef(pd).messageinf.i))) then
|
|
message3(type_e_range_check_error_bounds,tostr(Tordconstnode(pt).value),tostr(low(Tprocdef(pd).messageinf.i)),tostr(high(Tprocdef(pd).messageinf.i)))
|
|
else
|
|
Tprocdef(pd).messageinf.i:=tordconstnode(pt).value.svalue;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
{ check whether the selector name is valid in case of Objective-C }
|
|
if (po_msgstr in pd.procoptions) and
|
|
is_objc_class_or_protocol(tprocdef(pd).struct) and
|
|
not objcvalidselectorname(@tprocdef(pd).messageinf.str^[1],length(tprocdef(pd).messageinf.str^)) then
|
|
Message1(type_e_invalid_objc_selector_name,tprocdef(pd).messageinf.str^);
|
|
pt.free;
|
|
end;
|
|
|
|
|
|
procedure pd_reintroduce(pd:tabstractprocdef);
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(200401211);
|
|
if is_objectpascal_helper(tprocdef(pd).struct) then
|
|
begin
|
|
if m_objfpc in current_settings.modeswitches then
|
|
Message1(parser_e_not_allowed_in_helper, arraytokeninfo[_REINTRODUCE].str);
|
|
end
|
|
else
|
|
if not(is_class_or_interface_or_object(tprocdef(pd).struct)) and
|
|
not(is_objccategory(tprocdef(pd).struct)) and
|
|
not(is_javaclass(tprocdef(pd).struct)) then
|
|
Message(parser_e_no_object_reintroduce);
|
|
end;
|
|
|
|
|
|
procedure pd_syscall(pd:tabstractprocdef);
|
|
|
|
procedure include_po_syscall;
|
|
var
|
|
syscall: psyscallinfo;
|
|
begin
|
|
case target_info.system of
|
|
system_m68k_atari,
|
|
system_m68k_amiga,
|
|
system_powerpc_amiga:
|
|
include(pd.procoptions,get_default_syscall);
|
|
system_powerpc_morphos,
|
|
system_arm_aros,
|
|
system_i386_aros,
|
|
system_x86_64_aros:
|
|
begin
|
|
syscall:=get_syscall_by_token(idtoken);
|
|
if assigned(syscall) then
|
|
begin
|
|
if target_info.system in syscall^.validon then
|
|
begin
|
|
consume(idtoken);
|
|
include(pd.procoptions,syscall^.procoption);
|
|
end
|
|
end
|
|
else
|
|
include(pd.procoptions,get_default_syscall);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function po_syscall_to_varoptions: tvaroptions;
|
|
begin
|
|
result:=[vo_is_syscall_lib,vo_is_hidden_para];
|
|
if ([po_syscall_legacy,po_syscall_basereg,po_syscall_basenone] * tprocdef(pd).procoptions) <> [] then
|
|
include(result,vo_has_explicit_paraloc);
|
|
end;
|
|
|
|
function po_syscall_to_regname: string;
|
|
begin
|
|
if po_syscall_legacy in tprocdef(pd).procoptions then
|
|
result:='a6'
|
|
{ let nobase on MorphOS store the libbase in r12 as well, because
|
|
we will need the libbase anyway during the call generation }
|
|
else if (po_syscall_basenone in tprocdef(pd).procoptions) and
|
|
(target_info.system = system_powerpc_morphos) then
|
|
result:='r12'
|
|
else if po_syscall_basereg in tprocdef(pd).procoptions then
|
|
begin
|
|
case target_info.system of
|
|
system_i386_aros:
|
|
result:='eax';
|
|
system_x86_64_aros:
|
|
result:='rax';
|
|
system_powerpc_morphos:
|
|
result:='r12';
|
|
else
|
|
internalerror(2016090201);
|
|
end;
|
|
end
|
|
else
|
|
internalerror(2016090101);
|
|
end;
|
|
|
|
{$if defined(powerpc) or defined(m68k) or defined(i386) or defined(x86_64) or defined(arm)}
|
|
const
|
|
syscall_paranr: array[boolean] of aint =
|
|
( paranr_syscall_lib_last, paranr_syscall_lib_first );
|
|
var
|
|
vs : tparavarsym;
|
|
sym : tsym;
|
|
symtable : TSymtable;
|
|
v: Tconstexprint;
|
|
vo: tvaroptions;
|
|
paranr: aint;
|
|
{$endif defined(powerpc) or defined(m68k) or defined(i386) or defined(x86_64) or defined(arm)}
|
|
begin
|
|
if (pd.typ<>procdef) and (target_info.system <> system_powerpc_amiga) then
|
|
internalerror(2003042614);
|
|
tprocdef(pd).forwarddef:=false;
|
|
{$if defined(powerpc) or defined(m68k) or defined(i386) or defined(x86_64) or defined(arm)}
|
|
include_po_syscall;
|
|
|
|
if target_info.system = system_m68k_atari then
|
|
begin
|
|
v:=get_intconst;
|
|
if ((v<0) or (v>15)) then
|
|
message(parser_e_range_check_error)
|
|
else
|
|
tprocdef(pd).extnumber:=longint(v.svalue);
|
|
|
|
v:=get_intconst;
|
|
if ((v<0) or (v>high(smallint))) then
|
|
message(parser_e_range_check_error)
|
|
else
|
|
tprocdef(pd).import_nr:=longint(v.svalue);
|
|
|
|
exit;
|
|
end;
|
|
|
|
if consume_sym(sym,symtable) then
|
|
if (sym.typ=staticvarsym) and
|
|
((tabstractvarsym(sym).vardef.typ=pointerdef) or
|
|
is_32bitint(tabstractvarsym(sym).vardef)) then
|
|
begin
|
|
include(pd.procoptions,po_syscall_has_libsym);
|
|
tcpuprocdef(pd).libsym:=sym;
|
|
|
|
vo:=po_syscall_to_varoptions;
|
|
paranr:=syscall_paranr[po_syscall_basefirst in tprocdef(pd).procoptions];
|
|
vs:=cparavarsym.create('$syscalllib',paranr,vs_value,tabstractvarsym(sym).vardef,vo);
|
|
if vo_has_explicit_paraloc in vo then
|
|
if not paramanager.parseparaloc(vs,po_syscall_to_regname) then
|
|
internalerror(2016120301);
|
|
pd.parast.insert(vs);
|
|
end
|
|
else
|
|
Message(parser_e_32bitint_or_pointer_variable_expected);
|
|
|
|
paramanager.create_funcretloc_info(pd,calleeside);
|
|
paramanager.create_funcretloc_info(pd,callerside);
|
|
|
|
v:=get_intconst;
|
|
if (v<low(Tprocdef(pd).extnumber)) or (v>high(Tprocdef(pd).extnumber)) then
|
|
message3(type_e_range_check_error_bounds,tostr(v),tostr(low(Tprocdef(pd).extnumber)),tostr(high(Tprocdef(pd).extnumber)))
|
|
else
|
|
if target_info.system in [system_arm_aros,system_i386_aros,system_x86_64_aros] then
|
|
Tprocdef(pd).extnumber:=v.uvalue * sizeof(pint)
|
|
else
|
|
Tprocdef(pd).extnumber:=v.uvalue;
|
|
{$endif defined(powerpc) or defined(m68k) or defined(i386) or defined(x86_64) or defined(arm)}
|
|
end;
|
|
|
|
|
|
procedure pd_external(pd:tabstractprocdef);
|
|
{
|
|
If import_dll=nil the procedure is assumed to be in another
|
|
object file. In that object file it should have the name to
|
|
which import_name is pointing to. Otherwise, the procedure is
|
|
assumed to be in the DLL to which import_dll is pointing to. In
|
|
that case either import_nr<>0 or import_name<>nil is true, so
|
|
the procedure is either imported by number or by name. (DM)
|
|
}
|
|
var
|
|
hs : string;
|
|
v:Tconstexprint;
|
|
is_java_external: boolean;
|
|
begin
|
|
if pd.typ<>procdef then
|
|
internalerror(2003042615);
|
|
{ Allow specifying a separate external name for methods in external Java
|
|
because its identifier naming constraints are laxer than FPC's
|
|
(e.g., case sensitive).
|
|
Limitation: only allows specifying the symbol name and not the package name,
|
|
and only for external classes/interfaces }
|
|
is_java_external:=
|
|
(pd.typ=procdef) and
|
|
is_java_class_or_interface(tdef(pd.owner.defowner)) and
|
|
(oo_is_external in tobjectdef(pd.owner.defowner).objectoptions);
|
|
with tprocdef(pd) do
|
|
begin
|
|
forwarddef:=false;
|
|
{ forbid local external procedures }
|
|
if parast.symtablelevel>normal_function_level then
|
|
Message(parser_e_no_local_proc_external);
|
|
{ If the procedure should be imported from a DLL, a constant string follows.
|
|
This isn't really correct, an contant string expression follows
|
|
so we check if an semicolon follows, else a string constant have to
|
|
follow (FK) }
|
|
if not is_java_external and
|
|
not(token=_SEMICOLON) and not(idtoken=_NAME) 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;
|
|
{ the JVM expects java/lang/Object rather than java.lang.Object }
|
|
if target_info.system in systems_jvm then
|
|
Replace(hs,'.','/');
|
|
import_dll:=stringdup(hs);
|
|
include(procoptions,po_has_importdll);
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=stringdup(get_stringconst);
|
|
include(procoptions,po_has_importname);
|
|
if import_name^='' then
|
|
message(parser_e_empty_import_name);
|
|
end;
|
|
if (idtoken=_INDEX) then
|
|
begin
|
|
{After the word index follows the index number in the DLL.}
|
|
consume(_INDEX);
|
|
v:=get_intconst;
|
|
if (v<int64(low(import_nr))) or (v>int64(high(import_nr))) then
|
|
message(parser_e_range_check_error)
|
|
else
|
|
import_nr:=longint(v.svalue);
|
|
end;
|
|
{ default is to used the realname of the procedure }
|
|
if (import_nr=0) and not assigned(import_name) then
|
|
begin
|
|
import_name:=stringdup(procsym.realname);
|
|
include(procoptions,po_has_importname);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if (idtoken=_NAME) or
|
|
is_java_external then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=stringdup(get_stringconst);
|
|
include(procoptions,po_has_importname);
|
|
if import_name^='' then
|
|
message(parser_e_empty_import_name);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure pd_weakexternal(pd:tabstractprocdef);
|
|
begin
|
|
if not(target_info.system in systems_weak_linking) then
|
|
message(parser_e_weak_external_not_supported)
|
|
else
|
|
pd_external(pd);
|
|
end;
|
|
|
|
|
|
procedure pd_winapi(pd:tabstractprocdef);
|
|
begin
|
|
if not(target_info.system in systems_wince) then
|
|
pd.proccalloption:=pocall_cdecl
|
|
else
|
|
pd.proccalloption:=pocall_stdcall;
|
|
end;
|
|
|
|
|
|
procedure pd_hardfloat(pd:tabstractprocdef);
|
|
begin
|
|
if
|
|
{$if defined(arm)}
|
|
(current_settings.fputype=fpu_soft) or
|
|
{$endif defined(arm)}
|
|
(cs_fp_emulation in current_settings.moduleswitches) then
|
|
message(parser_e_cannot_use_hardfloat_in_a_softfloat_environment);
|
|
end;
|
|
|
|
type
|
|
pd_handler=procedure(pd:tabstractprocdef);
|
|
proc_dir_rec=record
|
|
idtok : ttoken;
|
|
pd_flags : tpdflags;
|
|
handler : pd_handler;
|
|
pocall : tproccalloption;
|
|
pooption : tprocoptions;
|
|
mutexclpocall : tproccalloptions;
|
|
mutexclpotype : tproctypeoptions;
|
|
mutexclpo : tprocoptions;
|
|
end;
|
|
const
|
|
{Should contain the number of procedure directives we support.}
|
|
num_proc_directives=50;
|
|
proc_direcdata:array[1..num_proc_directives] of proc_dir_rec=
|
|
(
|
|
(
|
|
idtok:_ABSTRACT;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_notrecord,pd_javaclass];
|
|
handler : @pd_abstract;
|
|
pocall : pocall_none;
|
|
pooption : [po_abstractmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_inline]
|
|
),(
|
|
idtok:_ALIAS;
|
|
pd_flags : [pd_implemen,pd_body,pd_notobjintf];
|
|
handler : @pd_alias;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_inline]
|
|
),(
|
|
idtok:_ASMNAME;
|
|
pd_flags : [pd_interface,pd_implemen,pd_notobjintf];
|
|
handler : @pd_asmname;
|
|
pocall : pocall_cdecl;
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_inline]
|
|
),(
|
|
idtok:_ASSEMBLER;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_notobjintf];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_assembler];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_C; {same as cdecl for mode mac}
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_cdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_CDECL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_cdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_DISPID;
|
|
pd_flags : [pd_dispinterface];
|
|
handler : @pd_dispid;
|
|
pocall : pocall_none;
|
|
pooption : [po_dispid];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt,po_external,po_inline]
|
|
),(
|
|
idtok:_DYNAMIC;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_notrecord];
|
|
handler : @pd_virtual;
|
|
pocall : pocall_none;
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_exports,po_interrupt,po_external,po_overridingmethod,po_inline]
|
|
),(
|
|
idtok:_EXPORT;
|
|
pd_flags : [pd_body,pd_interface,pd_implemen,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_export;
|
|
pocall : pocall_none;
|
|
pooption : [po_exports,po_global];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external,po_interrupt,po_inline]
|
|
),(
|
|
idtok:_EXTERNAL;
|
|
pd_flags : [pd_implemen,pd_interface,pd_notobject,pd_notobjintf,pd_cppobject,pd_notrecord,pd_nothelper,pd_javaclass,pd_intfjava];
|
|
handler : @pd_external;
|
|
pocall : pocall_none;
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_syscall];
|
|
{ allowed for external cpp classes }
|
|
mutexclpotype : [{potype_constructor,potype_destructor}potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_public,po_exports,po_interrupt,po_assembler,po_inline]
|
|
),(
|
|
idtok:_FAR;
|
|
pd_flags : [pd_implemen,pd_body,pd_interface,pd_procvar,pd_notobject,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_far;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_inline]
|
|
),(
|
|
idtok:_FAR16;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar,pd_notobject,pd_notrecord,pd_nothelper];
|
|
handler : nil;
|
|
pocall : pocall_far16;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_FINAL;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_notrecord,pd_javaclass];
|
|
handler : @pd_final;
|
|
pocall : pocall_none;
|
|
pooption : [po_finalmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_inline]
|
|
),(
|
|
idtok:_FORWARD;
|
|
pd_flags : [pd_implemen,pd_notobject,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_forward;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_inline]
|
|
),(
|
|
idtok:_OLDFPCCALL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_oldfpccall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_INLINE;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_notobjintf];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_inline];
|
|
mutexclpocall : [pocall_safecall];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_exports,po_external,po_interrupt,po_virtualmethod,po_iocheck]
|
|
),(
|
|
idtok:_INTERNCONST;
|
|
pd_flags : [pd_interface,pd_body,pd_notobject,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_internconst;
|
|
pocall : pocall_none;
|
|
pooption : [po_internconst];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_operator];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_INTERNPROC;
|
|
pd_flags : [pd_interface,pd_notobject,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_internproc;
|
|
pocall : pocall_internproc;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_exports,po_external,po_interrupt,po_assembler,po_iocheck,po_virtualmethod]
|
|
),(
|
|
idtok:_INTERRUPT;
|
|
pd_flags : [pd_implemen,pd_body,pd_notobject,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_interrupt;
|
|
pocall : pocall_oldfpccall;
|
|
pooption : [po_interrupt];
|
|
mutexclpocall : [pocall_internproc,pocall_cdecl,pocall_cppdecl,pocall_stdcall,pocall_mwpascal,
|
|
pocall_pascal,pocall_far16,pocall_oldfpccall,pocall_sysv_abi_cdecl,pocall_ms_abi_cdecl];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external,po_inline,po_exports]
|
|
),(
|
|
idtok:_IOCHECK;
|
|
pd_flags : [pd_implemen,pd_body,pd_notobjintf];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_iocheck];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_LOCAL;
|
|
pd_flags : [pd_implemen,pd_body];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_kylixlocal];
|
|
mutexclpocall : [pocall_internproc,pocall_far16];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_exports]
|
|
),(
|
|
idtok:_MESSAGE;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_objcclass,pd_objcprot,pd_notrecord];
|
|
handler : @pd_message;
|
|
pocall : pocall_none;
|
|
pooption : []; { can be po_msgstr or po_msgint }
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt,po_inline]
|
|
),(
|
|
idtok:_MWPASCAL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_mwpascal;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_NEAR;
|
|
pd_flags : [pd_implemen,pd_body,pd_procvar,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_near;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_NORETURN;
|
|
pd_flags : [pd_implemen,pd_interface,pd_body,pd_notobjintf];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_noreturn];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt,po_virtualmethod,po_iocheck]
|
|
),(
|
|
idtok:_NOSTACKFRAME;
|
|
pd_flags : [pd_implemen,pd_body,pd_procvar,pd_notobjintf];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_nostackframe];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERLOAD;
|
|
pd_flags : [pd_implemen,pd_interface,pd_body,pd_javaclass,pd_intfjava,pd_objcclass,pd_objcprot];
|
|
handler : @pd_overload;
|
|
pocall : pocall_none;
|
|
pooption : [po_overload];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERRIDE;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_objcclass,pd_javaclass,pd_intfjava,pd_notrecord];
|
|
handler : @pd_override;
|
|
pocall : pocall_none;
|
|
pooption : [po_overridingmethod,po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_virtualmethod,po_inline]
|
|
),(
|
|
idtok:_PASCAL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_pascal;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_PUBLIC;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_notobject,pd_notobjintf,pd_notrecord,pd_nothelper];
|
|
handler : @pd_public;
|
|
pocall : pocall_none;
|
|
pooption : [po_public,po_global];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_inline]
|
|
),(
|
|
idtok:_REGISTER;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_register;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_REINTRODUCE;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_objcclass,pd_notrecord,pd_javaclass];
|
|
handler : @pd_reintroduce;
|
|
pocall : pocall_none;
|
|
pooption : [po_reintroduce];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_interrupt,po_exports,po_overridingmethod,po_inline]
|
|
),(
|
|
idtok:_SAFECALL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_safecall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SOFTFLOAT;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_softfloat;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
{ it's available with po_external because the libgcc floating point routines on the arm
|
|
uses this calling convention }
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_STATIC;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_object,pd_record,pd_javaclass,pd_notobjintf];
|
|
handler : @pd_static;
|
|
pocall : pocall_none;
|
|
pooption : [po_staticmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt,po_exports,po_virtualmethod]
|
|
),(
|
|
idtok:_STDCALL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_stdcall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SYSCALL;
|
|
{ Different kind of syscalls are valid for AOS68k, AOSPPC and MOS. }
|
|
{ FIX ME!!! MorphOS/AOS68k pd_flags should be:
|
|
pd_interface, pd_implemen, pd_notobject, pd_notobjintf (KB) }
|
|
pd_flags : [pd_interface,pd_implemen,pd_procvar];
|
|
handler : @pd_syscall;
|
|
pocall : pocall_syscall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external,po_assembler,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_VIRTUAL;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf,pd_notrecord,pd_javaclass];
|
|
handler : @pd_virtual;
|
|
pocall : pocall_none;
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt,po_exports,po_overridingmethod,po_inline,po_staticmethod]
|
|
),(
|
|
idtok:_CPPDECL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_cppdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_assembler,po_external,po_virtualmethod]
|
|
),(
|
|
idtok:_VARARGS;
|
|
pd_flags : [pd_interface,pd_implemen,pd_procvar,pd_objcclass,pd_objcprot];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_varargs];
|
|
mutexclpocall : [pocall_internproc,pocall_register,
|
|
pocall_far16,pocall_oldfpccall,pocall_mwpascal];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_assembler,po_interrupt,po_inline]
|
|
),(
|
|
idtok:_COMPILERPROC;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_notobjintf];
|
|
handler : @pd_compilerproc;
|
|
pocall : pocall_none;
|
|
pooption : [po_compilerproc];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
),(
|
|
idtok:_WEAKEXTERNAL;
|
|
pd_flags : [pd_implemen,pd_interface,pd_notobject,pd_notobjintf,pd_cppobject,pd_notrecord,pd_nothelper];
|
|
handler : @pd_weakexternal;
|
|
pocall : pocall_none;
|
|
{ mark it both external and weak external, so we don't have to
|
|
adapt all code for external symbols to also check for weak external
|
|
}
|
|
pooption : [po_external,po_weakexternal];
|
|
mutexclpocall : [pocall_internproc,pocall_syscall];
|
|
{ allowed for external cpp classes }
|
|
mutexclpotype : [{potype_constructor,potype_destructor}potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_public,po_exports,po_interrupt,po_assembler,po_inline]
|
|
),(
|
|
idtok:_WINAPI;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : @pd_winapi;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_stdcall,pocall_cdecl,pocall_mwpascal,pocall_sysv_abi_cdecl,pocall_ms_abi_cdecl];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_ENUMERATOR;
|
|
pd_flags : [pd_interface,pd_object,pd_record];
|
|
handler : @pd_enumerator;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_external,po_inline]
|
|
),(
|
|
idtok:_RTLPROC;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_notobjintf];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_rtlproc];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
),(
|
|
idtok:_HARDFLOAT;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : @pd_hardfloat;
|
|
pocall : pocall_hardfloat;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
{ it's available with po_external because the libgcc floating point routines on the arm
|
|
uses this calling convention }
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_SYSV_ABI_DEFAULT;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_sysv_abi_default;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
),(
|
|
idtok:_SYSV_ABI_CDECL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_sysv_abi_cdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
),(
|
|
idtok:_MS_ABI_DEFAULT;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_ms_abi_default;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
),(
|
|
idtok:_MS_ABI_CDECL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_ms_abi_cdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_class_constructor,potype_class_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
)
|
|
);
|
|
|
|
|
|
function check_proc_directive(isprocvar:boolean):boolean;
|
|
var
|
|
i : longint;
|
|
begin
|
|
result:=false;
|
|
for i:=1 to num_proc_directives do
|
|
if proc_direcdata[i].idtok=idtoken then
|
|
begin
|
|
if ((not isprocvar) or
|
|
(pd_procvar in proc_direcdata[i].pd_flags)) and
|
|
{ don't eat a public directive in classes }
|
|
not((idtoken=_PUBLIC) and (symtablestack.top.symtabletype=ObjectSymtable)) then
|
|
result:=true;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
|
|
function parse_proc_direc(pd:tabstractprocdef;var pdflags:tpdflags):boolean;
|
|
{
|
|
Parse the procedure directive, returns true if a correct directive is found
|
|
}
|
|
var
|
|
p : longint;
|
|
found : boolean;
|
|
name : TIDString;
|
|
begin
|
|
parse_proc_direc:=false;
|
|
name:=tokeninfo^[idtoken].str;
|
|
found:=false;
|
|
|
|
{ Hint directive? Then exit immediatly }
|
|
if (m_hintdirective in current_settings.modeswitches) then
|
|
begin
|
|
case idtoken of
|
|
_LIBRARY,
|
|
_PLATFORM,
|
|
_UNIMPLEMENTED,
|
|
_EXPERIMENTAL,
|
|
_DEPRECATED :
|
|
if (m_delphi in current_settings.modeswitches) and (pd.typ=procdef) then
|
|
begin
|
|
maybe_parse_hint_directives(tprocdef(pd));
|
|
{ could the new token still be a directive? }
|
|
if token<>_ID then
|
|
exit;
|
|
name:=tokeninfo^[idtoken].str;
|
|
end
|
|
else
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
{ C directive is MacPas only, because it breaks too much existing code
|
|
on other platforms (PFV) }
|
|
if (idtoken=_C) and
|
|
not(m_mac in current_settings.modeswitches) then
|
|
exit;
|
|
|
|
{ retrieve data for directive if found }
|
|
for p:=1 to num_proc_directives do
|
|
if proc_direcdata[p].idtok=idtoken then
|
|
begin
|
|
found:=true;
|
|
break;
|
|
end;
|
|
|
|
{ Check if the procedure directive is known }
|
|
if not found then
|
|
begin
|
|
{ parsing a procvar type the name can be any
|
|
next variable !! }
|
|
if ((pdflags * [pd_procvar,pd_object,pd_record,pd_objcclass,pd_objcprot])=[]) and
|
|
not(idtoken in [_PROPERTY,_GENERIC]) then
|
|
Message1(parser_w_unknown_proc_directive_ignored,pattern);
|
|
exit;
|
|
end;
|
|
|
|
{ check if method and directive not for object, like public.
|
|
This needs to be checked also for procvars }
|
|
if (pd_notobject in proc_direcdata[p].pd_flags) and
|
|
(symtablestack.top.symtabletype=ObjectSymtable) and
|
|
{ directive allowed for cpp classes? }
|
|
not((pd_cppobject in proc_direcdata[p].pd_flags) and is_cppclass(tdef(symtablestack.top.defowner))) and
|
|
not((pd_javaclass in proc_direcdata[p].pd_flags) and is_javaclass(tdef(symtablestack.top.defowner))) and
|
|
not((pd_intfjava in proc_direcdata[p].pd_flags) and is_javainterface(tdef(symtablestack.top.defowner))) then
|
|
exit;
|
|
|
|
if (pd_notrecord in proc_direcdata[p].pd_flags) and
|
|
(symtablestack.top.symtabletype=recordsymtable) then
|
|
exit;
|
|
|
|
{ check if method and directive not for java class }
|
|
if not(pd_javaclass in proc_direcdata[p].pd_flags) and
|
|
is_javaclass(tdef(symtablestack.top.defowner)) then
|
|
exit;
|
|
|
|
{ check if method and directive not for java interface }
|
|
if not(pd_intfjava in proc_direcdata[p].pd_flags) and
|
|
is_javainterface(tdef(symtablestack.top.defowner)) then
|
|
exit;
|
|
|
|
{ Conflicts between directives ? }
|
|
if (pd.proctypeoption in proc_direcdata[p].mutexclpotype) or
|
|
(pd.proccalloption in proc_direcdata[p].mutexclpocall) or
|
|
((pd.procoptions*proc_direcdata[p].mutexclpo)<>[]) then
|
|
begin
|
|
Message1(parser_e_proc_dir_conflict,name);
|
|
exit;
|
|
end;
|
|
|
|
{ set calling convention }
|
|
if proc_direcdata[p].pocall<>pocall_none then
|
|
begin
|
|
if (po_hascallingconvention in pd.procoptions) then
|
|
begin
|
|
Message2(parser_w_proc_overriding_calling,
|
|
proccalloptionStr[pd.proccalloption],
|
|
proccalloptionStr[proc_direcdata[p].pocall]);
|
|
end;
|
|
{ check if the target processor supports this calling convention }
|
|
if not(proc_direcdata[p].pocall in supported_calling_conventions) then
|
|
begin
|
|
Message1(parser_e_illegal_calling_convention,proccalloptionStr[proc_direcdata[p].pocall]);
|
|
{ recover }
|
|
proc_direcdata[p].pocall:=pocall_stdcall;
|
|
end;
|
|
pd.proccalloption:=proc_direcdata[p].pocall;
|
|
include(pd.procoptions,po_hascallingconvention);
|
|
end;
|
|
|
|
if pd.typ=procdef then
|
|
begin
|
|
{ Check if the directive is only for objects }
|
|
if (pd_object in proc_direcdata[p].pd_flags) and
|
|
not assigned(tprocdef(pd).struct) then
|
|
exit;
|
|
|
|
{ Check if the directive is only for records }
|
|
if (pd_record in proc_direcdata[p].pd_flags) and
|
|
not assigned(tprocdef(pd).struct) then
|
|
exit;
|
|
|
|
{ check if method and directive not for interface }
|
|
if (pd_notobjintf in proc_direcdata[p].pd_flags) and
|
|
is_interface(tprocdef(pd).struct) then
|
|
exit;
|
|
|
|
{ check if method and directive not for interface }
|
|
if is_dispinterface(tprocdef(pd).struct) and
|
|
not(pd_dispinterface in proc_direcdata[p].pd_flags) then
|
|
exit;
|
|
|
|
{ check if method and directive not for objcclass }
|
|
if is_objcclass(tprocdef(pd).struct) and
|
|
not(pd_objcclass in proc_direcdata[p].pd_flags) then
|
|
exit;
|
|
|
|
{ check if method and directive not for objcprotocol }
|
|
if is_objcprotocol(tprocdef(pd).struct) and
|
|
not(pd_objcprot in proc_direcdata[p].pd_flags) then
|
|
exit;
|
|
|
|
{ check if method and directive not for record/class helper }
|
|
if is_objectpascal_helper(tprocdef(pd).struct) and
|
|
(pd_nothelper in proc_direcdata[p].pd_flags) then
|
|
end;
|
|
|
|
{ consume directive, and turn flag on }
|
|
consume(token);
|
|
parse_proc_direc:=true;
|
|
|
|
{ Check the pd_flags if the directive should be allowed }
|
|
if (pd_interface in pdflags) and
|
|
not(pd_interface in proc_direcdata[p].pd_flags) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_interface,name);
|
|
exit;
|
|
end;
|
|
if (pd_implemen in pdflags) and
|
|
not(pd_implemen in proc_direcdata[p].pd_flags) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_implementation,name);
|
|
exit;
|
|
end;
|
|
if (pd_procvar in pdflags) and
|
|
not(pd_procvar in proc_direcdata[p].pd_flags) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_procvar,name);
|
|
exit;
|
|
end;
|
|
|
|
{ Return the new pd_flags }
|
|
if not(pd_body in proc_direcdata[p].pd_flags) then
|
|
exclude(pdflags,pd_body);
|
|
|
|
{ Add the correct flag }
|
|
pd.procoptions:=pd.procoptions+proc_direcdata[p].pooption;
|
|
|
|
{ Call the handler }
|
|
if pointer(proc_direcdata[p].handler)<>nil then
|
|
proc_direcdata[p].handler(pd);
|
|
end;
|
|
|
|
|
|
|
|
function proc_get_importname(pd:tprocdef):string;
|
|
var
|
|
dllname, importname : string;
|
|
|
|
begin
|
|
result:='';
|
|
if not(po_external in pd.procoptions) then
|
|
internalerror(200412151);
|
|
{ external name or number is specified }
|
|
if assigned(pd.import_name) or (pd.import_nr<>0) then
|
|
begin
|
|
if assigned(pd.import_dll) then
|
|
dllname:=pd.import_dll^
|
|
else
|
|
dllname:='';
|
|
if assigned(pd.import_name) then
|
|
importname:=pd.import_name^
|
|
else
|
|
importname:='';
|
|
proc_get_importname:=make_dllmangledname(dllname,
|
|
importname,pd.import_nr,pd.proccalloption);
|
|
end
|
|
else
|
|
begin
|
|
{ Default names when importing variables }
|
|
case pd.proccalloption of
|
|
pocall_cdecl,
|
|
pocall_sysv_abi_cdecl,
|
|
pocall_ms_abi_cdecl:
|
|
begin
|
|
if assigned(pd.struct) then
|
|
result:=target_info.Cprefix+pd.struct.objrealname^+'_'+pd.procsym.realname
|
|
else
|
|
result:=target_info.Cprefix+pd.procsym.realname;
|
|
end;
|
|
pocall_cppdecl :
|
|
begin
|
|
result:=target_info.Cprefix+pd.cplusplusmangledname;
|
|
end;
|
|
else
|
|
begin
|
|
{In MacPas a single "external" has the same effect as "external name 'xxx'" }
|
|
{ but according to MacPas mode description
|
|
Cprefix should still be used PM }
|
|
if (m_mac in current_settings.modeswitches) then
|
|
result:=target_info.Cprefix+tprocdef(pd).procsym.realname
|
|
else
|
|
result:=pd.procsym.realname;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure compilerproc_set_symbol_name(pd: tprocdef);
|
|
begin
|
|
pd.procsym.realname:='$'+lower(pd.procsym.name);
|
|
end;
|
|
|
|
|
|
procedure proc_set_mangledname(pd:tprocdef);
|
|
var
|
|
s : string;
|
|
begin
|
|
{ When the mangledname is already set we aren't allowed to change
|
|
it because it can already be used somewhere (PFV) }
|
|
if not(po_has_mangledname in pd.procoptions) then
|
|
begin
|
|
if (po_external in pd.procoptions) then
|
|
begin
|
|
{ External Procedures are only allowed to change the mangledname
|
|
in their first declaration }
|
|
if (pd.forwarddef or (not pd.hasforward)) then
|
|
begin
|
|
s:=proc_get_importname(pd);
|
|
if s<>'' then
|
|
begin
|
|
pd.setmangledname(s);
|
|
end;
|
|
{ since this is an external declaration, there won't be an
|
|
implementation that needs to match the original symbol
|
|
again -> immediately convert here }
|
|
if po_compilerproc in pd.procoptions then
|
|
compilerproc_set_symbol_name(pd);
|
|
end
|
|
end
|
|
else
|
|
{ Normal procedures }
|
|
begin
|
|
if (po_compilerproc in pd.procoptions) then
|
|
begin
|
|
pd.setmangledname(lower(pd.procsym.name));
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ Public/exported alias names }
|
|
if (([po_public,po_exports]*pd.procoptions)<>[]) and
|
|
not(po_has_public_name in pd.procoptions) then
|
|
begin
|
|
case pd.proccalloption of
|
|
pocall_cdecl,
|
|
pocall_sysv_abi_cdecl,
|
|
pocall_ms_abi_cdecl:
|
|
begin
|
|
if assigned(pd.struct) then
|
|
pd.aliasnames.insert(target_info.Cprefix+pd.struct.objrealname^+'_'+pd.procsym.realname)
|
|
else
|
|
begin
|
|
{ Export names are not mangled on Windows and OS/2, see also pexports.pas }
|
|
if (target_info.system in (systems_all_windows+[system_i386_emx, system_i386_os2])) and
|
|
(po_exports in pd.procoptions) then
|
|
pd.aliasnames.insert(pd.procsym.realname)
|
|
else
|
|
pd.aliasnames.insert(target_info.Cprefix+pd.procsym.realname);
|
|
end;
|
|
end;
|
|
pocall_cppdecl :
|
|
begin
|
|
pd.aliasnames.insert(target_info.Cprefix+pd.cplusplusmangledname);
|
|
end;
|
|
end;
|
|
{ prevent adding the alias a second time }
|
|
include(pd.procoptions,po_has_public_name);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure handle_calling_convention(pd:tabstractprocdef;flags:thccflags=hcc_all);
|
|
begin
|
|
if hcc_check in flags then
|
|
begin
|
|
{ set the default calling convention if none provided }
|
|
if (pd.typ=procdef) and
|
|
(is_objc_class_or_protocol(tprocdef(pd).struct) or
|
|
is_cppclass(tprocdef(pd).struct)) then
|
|
begin
|
|
{ none of the explicit calling conventions should be allowed }
|
|
if (po_hascallingconvention in pd.procoptions) then
|
|
internalerror(2009032501);
|
|
if is_cppclass(tprocdef(pd).struct) then
|
|
pd.proccalloption:=pocall_cppdecl
|
|
else
|
|
pd.proccalloption:=pocall_cdecl;
|
|
end
|
|
else if not(po_hascallingconvention in pd.procoptions) then
|
|
pd.proccalloption:=current_settings.defproccall
|
|
else
|
|
begin
|
|
if pd.proccalloption=pocall_none then
|
|
internalerror(200309081);
|
|
end;
|
|
|
|
{ handle proccall specific settings }
|
|
case pd.proccalloption of
|
|
pocall_cdecl,
|
|
pocall_cppdecl,
|
|
pocall_sysv_abi_cdecl,
|
|
pocall_ms_abi_cdecl:
|
|
begin
|
|
{ check C cdecl para types }
|
|
check_c_para(pd);
|
|
end;
|
|
pocall_far16 :
|
|
begin
|
|
{ Temporary stub, must be rewritten to support OS/2 far16 }
|
|
Message1(parser_w_proc_directive_ignored,'FAR16');
|
|
end;
|
|
end;
|
|
|
|
{ Inlining is enabled and supported? }
|
|
if (po_inline in pd.procoptions) and
|
|
not(cs_do_inline in current_settings.localswitches) then
|
|
begin
|
|
{ Give an error if inline is not supported by the compiler mode,
|
|
otherwise only give a hint that this procedure will not be inlined }
|
|
if not(m_default_inline in current_settings.modeswitches) then
|
|
Message(parser_e_proc_inline_not_supported)
|
|
else
|
|
Message(parser_h_inlining_disabled);
|
|
exclude(pd.procoptions,po_inline);
|
|
end;
|
|
|
|
{ For varargs directive also cdecl and external must be defined }
|
|
if (po_varargs in pd.procoptions) then
|
|
begin
|
|
{ check first for external in the interface, if available there
|
|
then the cdecl must also be there since there is no implementation
|
|
available to contain it }
|
|
if parse_only then
|
|
begin
|
|
{ if external is available, then cdecl must also be available,
|
|
procvars don't need external }
|
|
if not((po_external in pd.procoptions) or
|
|
(pd.typ=procvardef) or
|
|
{ for objcclasses this is checked later, because the entire
|
|
class may be external. }
|
|
is_objc_class_or_protocol(tprocdef(pd).struct)) and
|
|
not(pd.proccalloption in (cdecl_pocalls + [pocall_stdcall])) then
|
|
Message(parser_e_varargs_need_cdecl_and_external);
|
|
end
|
|
else
|
|
begin
|
|
{ both must be defined now }
|
|
if not((po_external in pd.procoptions) or
|
|
(pd.typ=procvardef)) or
|
|
not(pd.proccalloption in (cdecl_pocalls + [pocall_stdcall])) then
|
|
Message(parser_e_varargs_need_cdecl_and_external);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
if hcc_insert_hidden_paras in flags then
|
|
begin
|
|
{ insert hidden high parameters }
|
|
pd.parast.SymList.ForEachCall(@insert_hidden_para,pd);
|
|
|
|
{ insert hidden self parameter }
|
|
insert_self_and_vmt_para(pd);
|
|
|
|
{ insert funcret parameter if required }
|
|
insert_funcret_para(pd);
|
|
|
|
{ Make var parameters regable, this must be done after the calling
|
|
convention is set. }
|
|
{ this must be done before parentfp is insert, because getting all cases
|
|
where parentfp must be in a memory location isn't catched properly so
|
|
we put parentfp never in a register }
|
|
pd.parast.SymList.ForEachCall(@set_addr_param_regable,pd);
|
|
|
|
{ insert parentfp parameter if required }
|
|
insert_parentfp_para(pd);
|
|
end;
|
|
|
|
{ Calculate parameter tlist }
|
|
pd.calcparas;
|
|
end;
|
|
|
|
|
|
procedure parse_proc_directives(pd:tabstractprocdef;var pdflags:tpdflags);
|
|
{
|
|
Parse the procedure directives. It does not matter if procedure directives
|
|
are written using ;procdir; or ['procdir'] syntax.
|
|
}
|
|
var
|
|
stoprecording,
|
|
res : boolean;
|
|
begin
|
|
if (m_mac in current_settings.modeswitches) and (cs_externally_visible in current_settings.localswitches) then
|
|
begin
|
|
tprocdef(pd).aliasnames.insert(target_info.Cprefix+tprocdef(pd).procsym.realname);
|
|
include(pd.procoptions,po_public);
|
|
include(pd.procoptions,po_has_public_name);
|
|
include(pd.procoptions,po_global);
|
|
end;
|
|
|
|
{ methods from external class definitions are all external themselves }
|
|
if (pd.typ=procdef) and
|
|
assigned(tprocdef(pd).struct) and
|
|
(tprocdef(pd).struct.typ=objectdef) and
|
|
(oo_is_external in tobjectdef(tprocdef(pd).struct).objectoptions) then
|
|
tprocdef(pd).make_external;
|
|
|
|
{ Class constructors and destructor are static class methods in real. }
|
|
{ There are many places in the compiler where either class or static }
|
|
{ method flag changes the behavior. It is simplier to add them to }
|
|
{ the class constructors/destructors options than to fix all the }
|
|
{ occurencies. (Paul) }
|
|
if pd.proctypeoption in [potype_class_constructor,potype_class_destructor] then
|
|
begin
|
|
include(pd.procoptions,po_classmethod);
|
|
include(pd.procoptions,po_staticmethod);
|
|
end;
|
|
|
|
{ for a generic routine we also need to record the procedure }
|
|
{ directives, but only if we aren't already recording for a }
|
|
{ surrounding generic }
|
|
if pd.is_generic and (pd.typ=procdef) and not current_scanner.is_recording_tokens then
|
|
begin
|
|
current_scanner.startrecordtokens(tprocdef(pd).genericdecltokenbuf);
|
|
stoprecording:=true;
|
|
end
|
|
else
|
|
stoprecording:=false;
|
|
|
|
while token in [_ID,_LECKKLAMMER] do
|
|
begin
|
|
if try_to_consume(_LECKKLAMMER) then
|
|
begin
|
|
repeat
|
|
parse_proc_direc(pd,pdflags);
|
|
until not try_to_consume(_COMMA);
|
|
consume(_RECKKLAMMER);
|
|
{ we always expect at least '[];' }
|
|
res:=true;
|
|
end
|
|
else
|
|
begin
|
|
res:=parse_proc_direc(pd,pdflags);
|
|
end;
|
|
{ A procedure directive normally followed by a semicolon, but in
|
|
a const section or reading a type we should stop when _EQ is found,
|
|
because a constant/default value follows }
|
|
if res then
|
|
begin
|
|
if (block_type=bt_const_type) and
|
|
(token=_EQ) then
|
|
break;
|
|
{ support procedure proc;stdcall export; }
|
|
if not(check_proc_directive((pd.typ=procvardef))) then
|
|
begin
|
|
{ support "record p : procedure stdcall end;" and
|
|
"var p : procedure stdcall = nil;" }
|
|
if (pd_procvar in pdflags) and
|
|
(token in [_END,_RKLAMMER,_EQ]) then
|
|
break
|
|
else
|
|
begin
|
|
if (token=_COLON) then
|
|
begin
|
|
Message(parser_e_field_not_allowed_here);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
consume(_SEMICOLON)
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
break;
|
|
end;
|
|
|
|
if stoprecording then
|
|
current_scanner.stoprecordtokens;
|
|
|
|
{ nostackframe requires assembler, but assembler
|
|
may be specified in the implementation part only,
|
|
and in not required if the function is first forward declared
|
|
if it is a procdef that has forwardef set to true
|
|
we postpone the possible error message to the real implementation
|
|
parse_only does not need to be considered as po_nostackframe
|
|
is an implementation only directive }
|
|
if (po_nostackframe in pd.procoptions) and
|
|
not (po_assembler in pd.procoptions) and
|
|
((pd.typ<>procdef) or not tprocdef(pd).forwarddef) then
|
|
message(parser_e_nostackframe_without_assembler);
|
|
end;
|
|
|
|
|
|
procedure parse_var_proc_directives(sym:tsym);
|
|
var
|
|
pdflags : tpdflags;
|
|
pd : tabstractprocdef;
|
|
begin
|
|
pdflags:=[pd_procvar];
|
|
pd:=nil;
|
|
case sym.typ of
|
|
fieldvarsym,
|
|
staticvarsym,
|
|
localvarsym,
|
|
paravarsym :
|
|
pd:=tabstractprocdef(tabstractvarsym(sym).vardef);
|
|
typesym :
|
|
pd:=tabstractprocdef(ttypesym(sym).typedef);
|
|
else
|
|
internalerror(2003042617);
|
|
end;
|
|
if pd.typ<>procvardef then
|
|
internalerror(2003042618);
|
|
{ names should never be used anyway }
|
|
parse_proc_directives(pd,pdflags);
|
|
end;
|
|
|
|
|
|
procedure parse_object_proc_directives(pd:tabstractprocdef);
|
|
var
|
|
pdflags : tpdflags;
|
|
begin
|
|
pdflags:=[pd_object];
|
|
parse_proc_directives(pd,pdflags);
|
|
end;
|
|
|
|
procedure parse_record_proc_directives(pd:tabstractprocdef);
|
|
var
|
|
pdflags : tpdflags;
|
|
begin
|
|
pdflags:=[pd_record];
|
|
parse_proc_directives(pd,pdflags);
|
|
end;
|
|
|
|
function proc_add_definition(var currpd:tprocdef):boolean;
|
|
|
|
|
|
function equal_generic_procdefs(fwpd,currpd:tprocdef):boolean;
|
|
var
|
|
i : longint;
|
|
fwtype,
|
|
currtype : ttypesym;
|
|
foundretdef : boolean;
|
|
begin
|
|
result:=false;
|
|
if fwpd.genericparas.count<>currpd.genericparas.count then
|
|
exit;
|
|
{ comparing generic declarations is a bit more cumbersome as the
|
|
defs of the generic parameter types are not equal, especially if the
|
|
declaration contains constraints; essentially we have two cases:
|
|
- proc declared in interface of unit (or in class/record/object)
|
|
and defined in implementation; here the fwpd might contain
|
|
constraints while currpd must only contain undefineddefs
|
|
- forward declaration in implementation }
|
|
foundretdef:=false;
|
|
for i:=0 to fwpd.genericparas.count-1 do
|
|
begin
|
|
fwtype:=ttypesym(fwpd.genericparas[i]);
|
|
currtype:=ttypesym(currpd.genericparas[i]);
|
|
{ if the type in the currpd isn't a pure undefineddef, then we can
|
|
stop right there }
|
|
if (currtype.typedef.typ<>undefineddef) or (df_genconstraint in currtype.typedef.defoptions) then
|
|
exit;
|
|
if not foundretdef then
|
|
begin
|
|
{ if the returndef is the same as this parameter's def then this
|
|
needs to be the case for both procdefs }
|
|
foundretdef:=fwpd.returndef=fwtype.typedef;
|
|
if foundretdef xor (currpd.returndef=currtype.typedef) then
|
|
exit;
|
|
end;
|
|
end;
|
|
if compare_paras(fwpd.paras,currpd.paras,cp_none,[cpo_ignorehidden,cpo_openequalisexact,cpo_ignoreuniv,cpo_generic])<>te_exact then
|
|
exit;
|
|
if not foundretdef then
|
|
begin
|
|
if (df_specialization in tstoreddef(fwpd.returndef).defoptions) and (df_specialization in tstoreddef(currpd.returndef).defoptions) then
|
|
{ for specializations we're happy with equal defs instead of exactly the same defs }
|
|
result:=equal_defs(fwpd.returndef,currpd.returndef)
|
|
else
|
|
{ the returndef isn't a type parameter, so compare as usual }
|
|
result:=compare_defs(fwpd.returndef,currpd.returndef,nothingn)=te_exact;
|
|
end
|
|
else
|
|
result:=true;
|
|
end;
|
|
|
|
{
|
|
Add definition aprocdef to the overloaded definitions of aprocsym. If a
|
|
forwarddef is found and reused it returns true
|
|
}
|
|
var
|
|
fwpd : tprocdef;
|
|
currparasym,
|
|
fwparasym : tsym;
|
|
currparacnt,
|
|
fwparacnt,
|
|
curridx,
|
|
fwidx,
|
|
i : longint;
|
|
po_comp : tprocoptions;
|
|
paracompopt: tcompare_paras_options;
|
|
forwardfound : boolean;
|
|
symentry: TSymEntry;
|
|
item : tlinkedlistitem;
|
|
begin
|
|
forwardfound:=false;
|
|
|
|
{ check overloaded functions if the same function already exists }
|
|
for i:=0 to tprocsym(currpd.procsym).ProcdefList.Count-1 do
|
|
begin
|
|
fwpd:=tprocdef(tprocsym(currpd.procsym).ProcdefList[i]);
|
|
|
|
{ can happen for internally generated routines }
|
|
if (fwpd=currpd) then
|
|
begin
|
|
result:=true;
|
|
exit;
|
|
end;
|
|
|
|
{ Skip overloaded definitions that are declared in other units }
|
|
if fwpd.procsym<>currpd.procsym then
|
|
continue;
|
|
|
|
{ check the parameters, for delphi/tp it is possible to
|
|
leave the parameters away in the implementation (forwarddef=false).
|
|
But for an overload declared function this is not allowed }
|
|
if { check if empty implementation arguments match is allowed }
|
|
(
|
|
not(m_repeat_forward in current_settings.modeswitches) and
|
|
not(currpd.forwarddef) and
|
|
is_bareprocdef(currpd) and
|
|
not(po_overload in fwpd.procoptions)
|
|
) or
|
|
(
|
|
fwpd.is_generic and
|
|
currpd.is_generic and
|
|
equal_generic_procdefs(fwpd,currpd)
|
|
) or
|
|
{ check arguments, we need to check only the user visible parameters. The hidden parameters
|
|
can be in a different location because of the calling convention, eg. L-R vs. R-L order (PFV)
|
|
|
|
don't check default values here, because routines that are the same except for their default
|
|
values should be reported as mismatches (since you can't overload based on different default
|
|
parameter values) }
|
|
(
|
|
(compare_paras(fwpd.paras,currpd.paras,cp_none,[cpo_ignorehidden,cpo_openequalisexact,cpo_ignoreuniv])=te_exact) and
|
|
(compare_defs(fwpd.returndef,currpd.returndef,nothingn)=te_exact)
|
|
) then
|
|
begin
|
|
{ Check if we've found the forwarddef, if found then
|
|
we need to update the forward def with the current
|
|
implementation settings }
|
|
if fwpd.forwarddef then
|
|
begin
|
|
forwardfound:=true;
|
|
|
|
if not(m_repeat_forward in current_settings.modeswitches) and
|
|
(fwpd.proccalloption<>currpd.proccalloption) then
|
|
paracompopt:=[cpo_ignorehidden,cpo_comparedefaultvalue,cpo_openequalisexact,cpo_ignoreuniv]
|
|
else
|
|
paracompopt:=[cpo_comparedefaultvalue,cpo_openequalisexact,cpo_ignoreuniv];
|
|
|
|
{ Check calling convention }
|
|
if (fwpd.proccalloption<>currpd.proccalloption) then
|
|
begin
|
|
{ In delphi it is possible to specify the calling
|
|
convention in the interface or implementation if
|
|
there was no convention specified in the other
|
|
part }
|
|
if (m_delphi in current_settings.modeswitches) then
|
|
begin
|
|
if not(po_hascallingconvention in currpd.procoptions) then
|
|
currpd.proccalloption:=fwpd.proccalloption
|
|
else
|
|
if not(po_hascallingconvention in fwpd.procoptions) then
|
|
fwpd.proccalloption:=currpd.proccalloption
|
|
else
|
|
begin
|
|
MessagePos(currpd.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
tprocsym(currpd.procsym).write_parameter_lists(currpd);
|
|
{ restore interface settings }
|
|
currpd.proccalloption:=fwpd.proccalloption;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
MessagePos(currpd.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
tprocsym(currpd.procsym).write_parameter_lists(currpd);
|
|
{ restore interface settings }
|
|
currpd.proccalloption:=fwpd.proccalloption;
|
|
end;
|
|
end;
|
|
|
|
{ Check static }
|
|
if (po_staticmethod in fwpd.procoptions) then
|
|
begin
|
|
if not (po_staticmethod in currpd.procoptions) then
|
|
begin
|
|
include(currpd.procoptions, po_staticmethod);
|
|
if (po_classmethod in currpd.procoptions) then
|
|
begin
|
|
{ remove self from the hidden paras }
|
|
symentry:=currpd.parast.Find('self');
|
|
if symentry<>nil then
|
|
begin
|
|
currpd.parast.Delete(symentry);
|
|
currpd.calcparas;
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ Check if the procedure type and return type are correct,
|
|
also the parameters must match also with the type and that
|
|
if the implementation has default parameters, the interface
|
|
also has them and that if they both have them, that they
|
|
have the same value }
|
|
if ((m_repeat_forward in current_settings.modeswitches) or
|
|
not is_bareprocdef(currpd)) and
|
|
(
|
|
(
|
|
fwpd.is_generic and
|
|
currpd.is_generic and
|
|
not equal_generic_procdefs(fwpd,currpd)
|
|
) or
|
|
(
|
|
(
|
|
not fwpd.is_generic or
|
|
not currpd.is_generic
|
|
) and
|
|
(
|
|
(compare_paras(fwpd.paras,currpd.paras,cp_all,paracompopt)<>te_exact) or
|
|
(compare_defs(fwpd.returndef,currpd.returndef,nothingn)<>te_exact)
|
|
)
|
|
)
|
|
) then
|
|
begin
|
|
MessagePos1(currpd.fileinfo,parser_e_header_dont_match_forward,
|
|
fwpd.fullprocname(false));
|
|
tprocsym(currpd.procsym).write_parameter_lists(currpd);
|
|
break;
|
|
end;
|
|
|
|
{ Check if both are declared forward }
|
|
if fwpd.forwarddef and currpd.forwarddef then
|
|
begin
|
|
MessagePos1(currpd.fileinfo,parser_e_function_already_declared_public_forward,
|
|
currpd.fullprocname(false));
|
|
end;
|
|
|
|
{ internconst or internproc only need to be defined once }
|
|
if (fwpd.proccalloption=pocall_internproc) then
|
|
currpd.proccalloption:=fwpd.proccalloption
|
|
else
|
|
if (currpd.proccalloption=pocall_internproc) then
|
|
fwpd.proccalloption:=currpd.proccalloption;
|
|
|
|
{ Check procedure options, Delphi requires that class is
|
|
repeated in the implementation for class methods }
|
|
if (m_fpc in current_settings.modeswitches) then
|
|
po_comp:=[po_classmethod,po_varargs,po_methodpointer,po_interrupt]
|
|
else
|
|
po_comp:=[po_classmethod,po_methodpointer];
|
|
|
|
if ((po_comp * fwpd.procoptions)<>(po_comp * currpd.procoptions)) or
|
|
(fwpd.proctypeoption <> currpd.proctypeoption) or
|
|
{ if the implementation version has an "overload" modifier,
|
|
the interface version must also have it (otherwise we can
|
|
get annoying crashes due to interface crc changes) }
|
|
(not(po_overload in fwpd.procoptions) and
|
|
(po_overload in currpd.procoptions)) then
|
|
begin
|
|
MessagePos1(currpd.fileinfo,parser_e_header_dont_match_forward,
|
|
fwpd.fullprocname(false));
|
|
tprocsym(fwpd.procsym).write_parameter_lists(fwpd);
|
|
{ This error is non-fatal, we can recover }
|
|
end;
|
|
|
|
{ Forward declaration is external? }
|
|
if (po_external in fwpd.procoptions) then
|
|
MessagePos(currpd.fileinfo,parser_e_proc_already_external);
|
|
|
|
{ Check parameters }
|
|
if (m_repeat_forward in current_settings.modeswitches) or
|
|
(currpd.minparacount>0) then
|
|
begin
|
|
{ If mangled names are equal then they have the same amount of arguments }
|
|
{ We can check the names of the arguments }
|
|
{ both symtables are in the same order from left to right }
|
|
curridx:=0;
|
|
fwidx:=0;
|
|
currparacnt:=currpd.parast.SymList.Count;
|
|
fwparacnt:=fwpd.parast.SymList.Count;
|
|
repeat
|
|
{ skip default parameter constsyms }
|
|
while (curridx<currparacnt) and
|
|
(tsym(currpd.parast.SymList[curridx]).typ<>paravarsym) do
|
|
inc(curridx);
|
|
while (fwidx<fwparacnt) and
|
|
(tsym(fwpd.parast.SymList[fwidx]).typ<>paravarsym) do
|
|
inc(fwidx);
|
|
{ stop when one of the two lists is at the end }
|
|
if (fwidx>=fwparacnt) or (curridx>=currparacnt) then
|
|
break;
|
|
{ compare names of parameters, ignore implictly
|
|
renamed parameters }
|
|
currparasym:=tsym(currpd.parast.SymList[curridx]);
|
|
fwparasym:=tsym(fwpd.parast.SymList[fwidx]);
|
|
if not(sp_implicitrename in currparasym.symoptions) and
|
|
not(sp_implicitrename in fwparasym.symoptions) then
|
|
begin
|
|
if (currparasym.name<>fwparasym.name) then
|
|
begin
|
|
MessagePos3(currpd.fileinfo,parser_e_header_different_var_names,
|
|
tprocsym(currpd.procsym).realname,fwparasym.realname,currparasym.realname);
|
|
break;
|
|
end;
|
|
end;
|
|
{ next parameter }
|
|
inc(curridx);
|
|
inc(fwidx);
|
|
until false;
|
|
end;
|
|
{ Everything is checked, now we can update the forward declaration
|
|
with the new data from the implementation }
|
|
fwpd.forwarddef:=currpd.forwarddef;
|
|
fwpd.hasforward:=true;
|
|
fwpd.procoptions:=fwpd.procoptions+currpd.procoptions;
|
|
|
|
{ marked as local but exported from unit? }
|
|
if (po_kylixlocal in fwpd.procoptions) and (fwpd.owner.symtabletype=globalsymtable) then
|
|
MessagePos(fwpd.fileinfo,type_e_cant_export_local);
|
|
|
|
if fwpd.extnumber=$ffff then
|
|
fwpd.extnumber:=currpd.extnumber;
|
|
while not currpd.aliasnames.empty do
|
|
fwpd.aliasnames.insert(currpd.aliasnames.getfirst);
|
|
{ update fileinfo so position references the implementation,
|
|
also update funcretsym if it is already generated }
|
|
fwpd.fileinfo:=currpd.fileinfo;
|
|
if assigned(fwpd.funcretsym) then
|
|
fwpd.funcretsym.fileinfo:=currpd.fileinfo;
|
|
if assigned(currpd.deprecatedmsg) then
|
|
begin
|
|
stringdispose(fwpd.deprecatedmsg);
|
|
fwpd.deprecatedmsg:=stringdup(currpd.deprecatedmsg^);
|
|
end;
|
|
{ import names }
|
|
if assigned(currpd.import_dll) then
|
|
begin
|
|
stringdispose(fwpd.import_dll);
|
|
fwpd.import_dll:=stringdup(currpd.import_dll^);
|
|
end;
|
|
if assigned(currpd.import_name) then
|
|
begin
|
|
stringdispose(fwpd.import_name);
|
|
fwpd.import_name:=stringdup(currpd.import_name^);
|
|
end;
|
|
fwpd.import_nr:=currpd.import_nr;
|
|
{ for compilerproc defines we need to rename and update the
|
|
symbolname to lowercase so users can' access it (can't do
|
|
it immediately, because then the implementation symbol
|
|
won't be matched) }
|
|
if po_compilerproc in fwpd.procoptions then
|
|
begin
|
|
compilerproc_set_symbol_name(fwpd);
|
|
current_module.add_public_asmsym(fwpd.procsym.realname,AB_GLOBAL,AT_FUNCTION);
|
|
end;
|
|
if po_public in fwpd.procoptions then
|
|
begin
|
|
item:=fwpd.aliasnames.first;
|
|
while assigned(item) do
|
|
begin
|
|
current_module.add_public_asmsym(TCmdStrListItem(item).str,AB_GLOBAL,AT_FUNCTION);
|
|
item:=item.next;
|
|
end;
|
|
end;
|
|
|
|
{ Release current procdef }
|
|
currpd.owner.deletedef(currpd);
|
|
currpd:=fwpd;
|
|
end
|
|
else
|
|
begin
|
|
{ abstract methods aren't forward defined, but this }
|
|
{ needs another error message }
|
|
if (po_abstractmethod in fwpd.procoptions) then
|
|
MessagePos(currpd.fileinfo,parser_e_abstract_no_definition)
|
|
else
|
|
begin
|
|
MessagePos(currpd.fileinfo,parser_e_overloaded_have_same_parameters);
|
|
tprocsym(currpd.procsym).write_parameter_lists(currpd);
|
|
end;
|
|
end;
|
|
|
|
{ we found one proc with the same arguments, there are no others
|
|
so we can stop }
|
|
break;
|
|
end;
|
|
|
|
{ check for allowing overload directive }
|
|
if not(m_fpc in current_settings.modeswitches) then
|
|
begin
|
|
{ overload directive turns on overloading }
|
|
if ((po_overload in currpd.procoptions) or
|
|
(po_overload in fwpd.procoptions)) then
|
|
begin
|
|
{ check if all procs have overloading, but not if the proc is a method or
|
|
already declared forward, then the check is already done }
|
|
if not(fwpd.hasforward or
|
|
assigned(currpd.struct) or
|
|
(currpd.forwarddef<>fwpd.forwarddef) or
|
|
((po_overload in currpd.procoptions) and
|
|
(po_overload in fwpd.procoptions))) then
|
|
begin
|
|
MessagePos1(currpd.fileinfo,parser_e_no_overload_for_all_procs,currpd.procsym.realname);
|
|
break;
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
if not(fwpd.forwarddef) then
|
|
begin
|
|
if (m_tp7 in current_settings.modeswitches) then
|
|
MessagePos(currpd.fileinfo,parser_e_procedure_overloading_is_off)
|
|
else
|
|
MessagePos1(currpd.fileinfo,parser_e_no_overload_for_all_procs,currpd.procsym.realname);
|
|
break;
|
|
end;
|
|
end;
|
|
end; { equal arguments }
|
|
end;
|
|
|
|
{ if we didn't reuse a forwarddef then we add the procdef to the overloaded
|
|
list }
|
|
if not forwardfound then
|
|
begin
|
|
{ can happen in Delphi mode }
|
|
if (currpd.proctypeoption = potype_function) and
|
|
is_void(currpd.returndef) then
|
|
MessagePos1(currpd.fileinfo,parser_e_no_funcret_specified,currpd.procsym.realname);
|
|
tprocsym(currpd.procsym).ProcdefList.Add(currpd);
|
|
if not currpd.forwarddef and (po_public in currpd.procoptions) then
|
|
begin
|
|
item:=currpd.aliasnames.first;
|
|
while assigned(item) do
|
|
begin
|
|
current_module.add_public_asmsym(TCmdStrListItem(item).str,AB_GLOBAL,AT_FUNCTION);
|
|
item:=item.next;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
proc_add_definition:=forwardfound;
|
|
end;
|
|
|
|
end.
|