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1823 lines
64 KiB
ObjectPascal
1823 lines
64 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 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 defines.inc}
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interface
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uses
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cobjects,tokens,symconst,symtable;
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const
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pd_global = $1; { directive must be global }
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pd_body = $2; { directive needs a body }
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pd_implemen = $4; { directive can be used implementation section }
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pd_interface = $8; { directive can be used interface section }
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pd_object = $10; { directive can be used object declaration }
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pd_procvar = $20; { directive can be used procvar declaration }
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pd_notobject = $40; { directive can not be used object declaration }
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function is_proc_directive(tok:ttoken):boolean;
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function check_identical_proc(var p : pprocdef) : boolean;
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procedure parameter_dec(aktprocdef:pabstractprocdef);
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procedure parse_proc_directives(Anames:Pstringcontainer;var pdflags:word);
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procedure parse_proc_head(options:tproctypeoption);
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procedure parse_proc_dec;
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procedure parse_var_proc_directives(var sym : psym);
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procedure parse_object_proc_directives(var sym : pprocsym);
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implementation
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uses
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{$ifdef delphi}
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sysutils,
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{$else delphi}
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strings,
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{$endif delphi}
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{ common }
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cutils,
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{ global }
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globtype,globals,verbose,
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systems,cpuinfo,
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{ aasm }
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aasm,
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{ symtable }
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types,
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{$ifdef GDB}
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gdb,
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{$endif}
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{ pass 1 }
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node,pass_1,htypechk,
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nmat,nadd,ncal,nmem,nset,ncnv,ninl,ncon,nld,nflw,
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{ parser }
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fmodule,scanner,
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pbase,pexpr,ptype,pdecl,
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{ linking }
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import,gendef,
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{ codegen }
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{$ifdef newcg}
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cgbase
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{$else}
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hcodegen
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{$endif}
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;
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var
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realname : string; { contains the real name of a procedure as it's typed }
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procedure parameter_dec(aktprocdef:pabstractprocdef);
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{
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handle_procvar needs the same changes
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}
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var
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is_procvar : boolean;
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sc : Pstringcontainer;
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s : string;
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hpos,
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storetokenpos : tfileposinfo;
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tt : ttype;
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hvs,
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vs : Pvarsym;
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hs1,hs2 : string;
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varspez : Tvarspez;
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inserthigh : boolean;
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pdefaultvalue : pconstsym;
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defaultrequired : boolean;
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begin
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{ reset }
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defaultrequired:=false;
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{ parsing a proc or procvar ? }
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is_procvar:=(aktprocdef^.deftype=procvardef);
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consume(_LKLAMMER);
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inc(testcurobject);
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repeat
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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 try_to_consume(_OUT) then
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varspez:=vs_out
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else
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varspez:=vs_value;
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inserthigh:=false;
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pdefaultvalue:=nil;
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tt.reset;
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{ self is only allowed in procvars and class methods }
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if (idtoken=_SELF) and
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(is_procvar or
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(assigned(procinfo^._class) and procinfo^._class^.is_class)) then
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begin
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if not is_procvar then
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begin
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{$ifndef UseNiceNames}
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hs2:=hs2+'$'+'self';
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{$else UseNiceNames}
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hs2:=hs2+tostr(length('self'))+'self';
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{$endif UseNiceNames}
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vs:=new(Pvarsym,initdef('@',procinfo^._class));
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vs^.varspez:=vs_var;
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{ insert the sym in the parasymtable }
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pprocdef(aktprocdef)^.parast^.insert(vs);
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include(aktprocdef^.procoptions,po_containsself);
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inc(procinfo^.selfpointer_offset,vs^.address);
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end;
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consume(idtoken);
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consume(_COLON);
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single_type(tt,hs1,false);
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aktprocdef^.concatpara(tt,vs_value,nil);
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{ check the types for procedures only }
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if not is_procvar then
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CheckTypes(tt.def,procinfo^._class);
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end
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else
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begin
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{ read identifiers }
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sc:=idlist;
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{$ifdef fixLeaksOnError}
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strContStack.push(sc);
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{$endif fixLeaksOnError}
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{ read type declaration, force reading for value and const 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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if token=_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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tt.setdef(new(Parraydef,init(0,-1,s32bitdef)));
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{ array of const ? }
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if (token=_CONST) and (m_objpas in aktmodeswitches) then
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begin
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consume(_CONST);
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srsym:=nil;
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getsymonlyin(systemunit,'TVARREC');
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if not assigned(srsym) then
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InternalError(1234124);
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Parraydef(tt.def)^.elementtype:=ptypesym(srsym)^.restype;
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Parraydef(tt.def)^.IsArrayOfConst:=true;
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hs1:='array_of_const';
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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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single_type(parraydef(tt.def)^.elementtype,hs1,false);
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hs1:='array_of_'+hs1;
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end;
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inserthigh:=true;
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end
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else
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begin
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{ open string ? }
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if (varspez=vs_var) and
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(
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(
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((token=_STRING) or (idtoken=_SHORTSTRING)) and
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(cs_openstring in aktmoduleswitches) and
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not(cs_ansistrings in aktlocalswitches)
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) or
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(idtoken=_OPENSTRING)) then
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begin
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consume(token);
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tt.setdef(openshortstringdef);
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hs1:='openstring';
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inserthigh:=true;
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end
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else
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begin
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{ everything else }
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single_type(tt,hs1,false);
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end;
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{ default parameter }
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if (m_default_para in aktmodeswitches) then
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begin
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if try_to_consume(_EQUAL) then
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begin
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s:=sc^.get_with_tokeninfo(hpos);
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if not sc^.empty then
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Comment(V_Error,'default value only allowed for one parameter');
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sc^.insert_with_tokeninfo(s,hpos);
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{ prefix 'def' to the parameter name }
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pdefaultvalue:=ReadConstant('$def'+Upper(s),hpos);
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if assigned(pdefaultvalue) then
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pprocdef(aktprocdef)^.parast^.insert(pdefaultvalue);
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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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Comment(V_Error,'default parameter required');
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end;
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end;
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end;
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end
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else
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begin
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{$ifndef UseNiceNames}
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hs1:='$$$';
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{$else UseNiceNames}
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hs1:='var';
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{$endif UseNiceNames}
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tt.setdef(cformaldef);
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end;
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if not is_procvar then
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hs2:=pprocdef(aktprocdef)^.mangledname;
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storetokenpos:=tokenpos;
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while not sc^.empty do
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begin
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s:=sc^.get_with_tokeninfo(tokenpos);
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aktprocdef^.concatpara(tt,varspez,pdefaultvalue);
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{ For proc vars we only need the definitions }
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if not is_procvar then
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begin
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{$ifndef UseNiceNames}
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hs2:=hs2+'$'+hs1;
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{$else UseNiceNames}
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hs2:=hs2+tostr(length(hs1))+hs1;
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{$endif UseNiceNames}
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vs:=new(pvarsym,init(s,tt));
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vs^.varspez:=varspez;
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{ we have to add this to avoid var param to be in registers !!!}
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{ I don't understand the comment above, }
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{ but I suppose the comment is wrong and }
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{ it means that the address of var parameters can be placed }
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{ in a register (FK) }
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if (varspez in [vs_var,vs_const,vs_out]) and push_addr_param(tt.def) then
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include(vs^.varoptions,vo_regable);
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{ insert the sym in the parasymtable }
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pprocdef(aktprocdef)^.parast^.insert(vs);
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{ do we need a local copy? Then rename the varsym, do this after the
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insert so the dup id checking is done correctly }
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if (varspez=vs_value) and
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push_addr_param(tt.def) and
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not(is_open_array(tt.def) or is_array_of_const(tt.def)) then
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pprocdef(aktprocdef)^.parast^.rename(vs^.name,'val'+vs^.name);
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{ also need to push a high value? }
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if inserthigh then
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begin
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hvs:=new(Pvarsym,initdef('$high'+Upper(s),s32bitdef));
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hvs^.varspez:=vs_const;
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pprocdef(aktprocdef)^.parast^.insert(hvs);
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end;
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end;
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end;
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{$ifdef fixLeaksOnError}
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if PStringContainer(strContStack.pop) <> sc then
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writeln('problem with strContStack in pdecl (1)');
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{$endif fixLeaksOnError}
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dispose(sc,done);
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tokenpos:=storetokenpos;
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end;
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{ set the new mangled name }
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if not is_procvar then
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pprocdef(aktprocdef)^.setmangledname(hs2);
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until not try_to_consume(_SEMICOLON);
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dec(testcurobject);
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consume(_RKLAMMER);
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end;
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procedure parse_proc_head(options:tproctypeoption);
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var sp:stringid;
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pd:Pprocdef;
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paramoffset:longint;
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sym:Psym;
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hs:string;
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st : psymtable;
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overloaded_level:word;
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storepos,procstartfilepos : tfileposinfo;
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begin
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{ Save the position where this procedure really starts and set col to 1 which
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looks nicer }
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procstartfilepos:=tokenpos;
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{ procstartfilepos.column:=1; I do not agree here !!
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lets keep excat position PM }
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if (options=potype_operator) then
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begin
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sp:=overloaded_names[optoken];
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realname:=sp;
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end
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else
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begin
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sp:=pattern;
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realname:=orgpattern;
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consume(_ID);
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end;
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{ method ? }
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if not(parse_only) and
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(lexlevel=normal_function_level) and
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try_to_consume(_POINT) then
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begin
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storepos:=tokenpos;
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tokenpos:=procstartfilepos;
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getsym(sp,true);
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sym:=srsym;
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tokenpos:=storepos;
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{ load proc name }
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sp:=pattern;
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realname:=orgpattern;
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procstartfilepos:=tokenpos;
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{ qualifier is class name ? }
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if (sym^.typ<>typesym) or
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(ptypesym(sym)^.restype.def^.deftype<>objectdef) then
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begin
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Message(parser_e_class_id_expected);
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aktprocsym:=nil;
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consume(_ID);
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end
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else
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begin
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{ used to allow private syms to be seen }
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aktobjectdef:=pobjectdef(ptypesym(sym)^.restype.def);
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procinfo^._class:=pobjectdef(ptypesym(sym)^.restype.def);
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aktprocsym:=pprocsym(procinfo^._class^.symtable^.search(sp));
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consume(_ID);
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{The procedure has been found. So it is
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a global one. Set the flags to mark this.}
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procinfo^.flags:=procinfo^.flags or pi_is_global;
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aktobjectdef:=nil;
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{ we solve this below }
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if not(assigned(aktprocsym)) then
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Message(parser_e_methode_id_expected);
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end;
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end
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else
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begin
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{ check for constructor/destructor which is not allowed here }
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if (not parse_only) and
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(options in [potype_constructor,potype_destructor]) then
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Message(parser_e_constructors_always_objects);
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tokenpos:=procstartfilepos;
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aktprocsym:=pprocsym(symtablestack^.search(sp));
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if not(parse_only) then
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begin
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{The procedure we prepare for is in the implementation
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part of the unit we compile. It is also possible that we
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are compiling a program, which is also some kind of
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implementaion part.
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We need to find out if the procedure is global. If it is
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global, it is in the global symtable.}
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if not assigned(aktprocsym) and
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(symtablestack^.symtabletype=staticsymtable) then
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begin
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{Search the procedure in the global symtable.}
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aktprocsym:=Pprocsym(search_a_symtable(sp,globalsymtable));
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if assigned(aktprocsym) then
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begin
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{Check if it is a procedure.}
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if aktprocsym^.typ<>procsym then
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DuplicateSym(aktprocsym);
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{The procedure has been found. So it is
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a global one. Set the flags to mark this.}
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procinfo^.flags:=procinfo^.flags or pi_is_global;
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end;
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end;
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end;
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end;
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{ Create the mangledname }
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{$ifndef UseNiceNames}
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if assigned(procinfo^._class) then
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begin
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if (pos('_$$_',procprefix)=0) then
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hs:=procprefix+'_$$_'+procinfo^._class^.objname^+'_$$_'+sp
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else
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hs:=procprefix+'_$'+sp;
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end
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else
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begin
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if lexlevel=normal_function_level then
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hs:=procprefix+'_'+sp
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else
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hs:=procprefix+'_$'+sp;
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end;
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{$else UseNiceNames}
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if assigned(procinfo^._class) then
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begin
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if (pos('_5Class_',procprefix)=0) then
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hs:=procprefix+'_5Class_'+procinfo^._class^.name^+'_'+tostr(length(sp))+sp
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else
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hs:=procprefix+'_'+tostr(length(sp))+sp;
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end
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else
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begin
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if lexlevel=normal_function_level then
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hs:=procprefix+'_'+tostr(length(sp))+sp
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else
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hs:=lowercase(procprefix)+'_'+tostr(length(sp))+sp;
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end;
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{$endif UseNiceNames}
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if assigned(aktprocsym) then
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begin
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{ Check if overloaded is a procsym, we use a different error message
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for tp7 so it looks more compatible }
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if aktprocsym^.typ<>procsym then
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begin
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if (m_fpc in aktmodeswitches) then
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Message1(parser_e_overloaded_no_procedure,aktprocsym^.name)
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else
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DuplicateSym(aktprocsym);
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{ try to recover by creating a new aktprocsym }
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tokenpos:=procstartfilepos;
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aktprocsym:=new(pprocsym,init(sp));
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end;
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end
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else
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begin
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{ create a new procsym and set the real filepos }
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tokenpos:=procstartfilepos;
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{ for operator we have only one definition for each overloaded
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operation }
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if (options=potype_operator) then
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begin
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{ create the procsym with saving the original case }
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aktprocsym:=new(pprocsym,init('$'+sp));
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{ the only problem is that nextoverloaded might not be in a unit
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known for the unit itself }
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{ not anymore PM }
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if assigned(overloaded_operators[optoken]) then
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aktprocsym^.definition:=overloaded_operators[optoken]^.definition;
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{$ifndef DONOTCHAINOPERATORS}
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overloaded_operators[optoken]:=aktprocsym;
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{$endif DONOTCHAINOPERATORS}
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end
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else
|
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aktprocsym:=new(pprocsym,init(sp));
|
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symtablestack^.insert(aktprocsym);
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end;
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|
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st:=symtablestack;
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pd:=new(pprocdef,init);
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pd^.symtablelevel:=symtablestack^.symtablelevel;
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|
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if assigned(procinfo^._class) then
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pd^._class := procinfo^._class;
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|
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{ set the options from the caller (podestructor or poconstructor) }
|
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pd^.proctypeoption:=options;
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{ calculate the offset of the parameters }
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paramoffset:=8;
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|
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{ calculate frame pointer offset }
|
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if lexlevel>normal_function_level then
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begin
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procinfo^.framepointer_offset:=paramoffset;
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inc(paramoffset,target_os.size_of_pointer);
|
|
{ this is needed to get correct framepointer push for local
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forward functions !! }
|
|
pd^.parast^.symtablelevel:=lexlevel;
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end;
|
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|
|
if assigned (procinfo^._Class) and
|
|
not(procinfo^._Class^.is_class) and
|
|
(pd^.proctypeoption in [potype_constructor,potype_destructor]) then
|
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inc(paramoffset,target_os.size_of_pointer);
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|
|
{ self pointer offset }
|
|
{ self isn't pushed in nested procedure of methods }
|
|
if assigned(procinfo^._class) and (lexlevel=normal_function_level) then
|
|
begin
|
|
procinfo^.selfpointer_offset:=paramoffset;
|
|
if assigned(aktprocsym^.definition) and
|
|
not(po_containsself in aktprocsym^.definition^.procoptions) then
|
|
inc(paramoffset,target_os.size_of_pointer);
|
|
end;
|
|
|
|
{ con/-destructor flag ? }
|
|
if assigned (procinfo^._Class) and
|
|
procinfo^._class^.is_class and
|
|
(pd^.proctypeoption in [potype_destructor,potype_constructor]) then
|
|
inc(paramoffset,target_os.size_of_pointer);
|
|
|
|
procinfo^.para_offset:=paramoffset;
|
|
|
|
pd^.parast^.datasize:=0;
|
|
|
|
pd^.nextoverloaded:=aktprocsym^.definition;
|
|
aktprocsym^.definition:=pd;
|
|
{ this is probably obsolete now PM }
|
|
aktprocsym^.definition^.fileinfo:=procstartfilepos;
|
|
aktprocsym^.definition^.setmangledname(hs);
|
|
aktprocsym^.definition^.procsym:=aktprocsym;
|
|
|
|
if not parse_only then
|
|
begin
|
|
overloaded_level:=0;
|
|
{ we need another procprefix !!! }
|
|
{ count, but only those in the same unit !!}
|
|
while assigned(pd) and
|
|
(pd^.owner^.symtabletype in [globalsymtable,staticsymtable]) do
|
|
begin
|
|
{ only count already implemented functions }
|
|
if not(pd^.forwarddef) then
|
|
inc(overloaded_level);
|
|
pd:=pd^.nextoverloaded;
|
|
end;
|
|
if overloaded_level>0 then
|
|
procprefix:=hs+'$'+tostr(overloaded_level)+'$'
|
|
else
|
|
procprefix:=hs+'$';
|
|
end;
|
|
|
|
{ this must also be inserted in the right symtable !! PM }
|
|
{ otherwise we get subbtle problems with
|
|
definitions of args defs in staticsymtable for
|
|
implementation of a global method }
|
|
if token=_LKLAMMER then
|
|
parameter_dec(aktprocsym^.definition);
|
|
|
|
{ so we only restore the symtable now }
|
|
symtablestack:=st;
|
|
if (options=potype_operator) then
|
|
overloaded_operators[optoken]:=aktprocsym;
|
|
end;
|
|
|
|
|
|
procedure parse_proc_dec;
|
|
var
|
|
hs : string;
|
|
isclassmethod : boolean;
|
|
begin
|
|
inc(lexlevel);
|
|
{ read class method }
|
|
if token=_CLASS then
|
|
begin
|
|
consume(_CLASS);
|
|
isclassmethod:=true;
|
|
end
|
|
else
|
|
isclassmethod:=false;
|
|
case token of
|
|
_FUNCTION : begin
|
|
consume(_FUNCTION);
|
|
parse_proc_head(potype_none);
|
|
if token<>_COLON then
|
|
begin
|
|
if not(aktprocsym^.definition^.forwarddef) or
|
|
(m_repeat_forward in aktmodeswitches) then
|
|
begin
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
consume(_COLON);
|
|
inc(testcurobject);
|
|
single_type(aktprocsym^.definition^.rettype,hs,false);
|
|
aktprocsym^.definition^.test_if_fpu_result;
|
|
dec(testcurobject);
|
|
end;
|
|
end;
|
|
_PROCEDURE : begin
|
|
consume(_PROCEDURE);
|
|
parse_proc_head(potype_none);
|
|
aktprocsym^.definition^.rettype.def:=voiddef;
|
|
end;
|
|
_CONSTRUCTOR : begin
|
|
consume(_CONSTRUCTOR);
|
|
parse_proc_head(potype_constructor);
|
|
if assigned(procinfo^._class) and
|
|
procinfo^._class^.is_class then
|
|
begin
|
|
{ CLASS constructors return the created instance }
|
|
aktprocsym^.definition^.rettype.def:=procinfo^._class;
|
|
end
|
|
else
|
|
begin
|
|
{ OBJECT constructors return a boolean }
|
|
{$IfDef GDB}
|
|
{ GDB doesn't like unnamed types !}
|
|
aktprocsym^.definition^.rettype.def:=globaldef('boolean');
|
|
{$else GDB}
|
|
aktprocsym^.definition^.rettype.def:=new(porddef,init(bool8bit,0,1));
|
|
{$Endif GDB}
|
|
end;
|
|
end;
|
|
_DESTRUCTOR : begin
|
|
consume(_DESTRUCTOR);
|
|
parse_proc_head(potype_destructor);
|
|
aktprocsym^.definition^.rettype.def:=voiddef;
|
|
end;
|
|
_OPERATOR : begin
|
|
if lexlevel>normal_function_level then
|
|
Message(parser_e_no_local_operator);
|
|
consume(_OPERATOR);
|
|
if not(token in [_PLUS..last_overloaded]) then
|
|
Message(parser_e_overload_operator_failed);
|
|
optoken:=token;
|
|
consume(Token);
|
|
procinfo^.flags:=procinfo^.flags or pi_operator;
|
|
parse_proc_head(potype_operator);
|
|
if token<>_ID then
|
|
begin
|
|
opsym:=nil;
|
|
if not(m_result in aktmodeswitches) then
|
|
consume(_ID);
|
|
end
|
|
else
|
|
begin
|
|
opsym:=new(pvarsym,initdef(pattern,voiddef));
|
|
consume(_ID);
|
|
end;
|
|
if not try_to_consume(_COLON) then
|
|
begin
|
|
consume(_COLON);
|
|
aktprocsym^.definition^.rettype.def:=generrordef;
|
|
consume_all_until(_SEMICOLON);
|
|
end
|
|
else
|
|
begin
|
|
single_type(aktprocsym^.definition^.rettype,hs,false);
|
|
aktprocsym^.definition^.test_if_fpu_result;
|
|
if (optoken in [_EQUAL,_GT,_LT,_GTE,_LTE]) and
|
|
((aktprocsym^.definition^.rettype.def^.deftype<>
|
|
orddef) or (porddef(aktprocsym^.definition^.
|
|
rettype.def)^.typ<>bool8bit)) then
|
|
Message(parser_e_comparative_operator_return_boolean);
|
|
if assigned(opsym) then
|
|
opsym^.vartype.def:=aktprocsym^.definition^.rettype.def;
|
|
{ We need to add the return type in the mangledname
|
|
to allow overloading with just different results !! (PM) }
|
|
aktprocsym^.definition^.setmangledname(
|
|
aktprocsym^.definition^.mangledname+'$$'+hs);
|
|
if (optoken=_ASSIGNMENT) and
|
|
is_equal(aktprocsym^.definition^.rettype.def,
|
|
pvarsym(aktprocsym^.definition^.parast^.symindex^.first)^.vartype.def) then
|
|
message(parser_e_no_such_assignment)
|
|
else if not isoperatoracceptable(aktprocsym^.definition,optoken) then
|
|
Message(parser_e_overload_impossible);
|
|
end;
|
|
end;
|
|
end;
|
|
if isclassmethod and
|
|
assigned(aktprocsym) then
|
|
include(aktprocsym^.definition^.procoptions,po_classmethod);
|
|
{ support procedure proc;stdcall export; in Delphi mode only }
|
|
if not((m_delphi in aktmodeswitches) and
|
|
is_proc_directive(token)) then
|
|
consume(_SEMICOLON);
|
|
dec(lexlevel);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Procedure directive handlers
|
|
****************************************************************************}
|
|
|
|
procedure pd_far(const procnames:Tstringcontainer);
|
|
begin
|
|
Message(parser_w_proc_far_ignored);
|
|
end;
|
|
|
|
procedure pd_near(const procnames:Tstringcontainer);
|
|
begin
|
|
Message(parser_w_proc_near_ignored);
|
|
end;
|
|
|
|
procedure pd_export(const procnames:Tstringcontainer);
|
|
begin
|
|
if assigned(procinfo^._class) then
|
|
Message(parser_e_methods_dont_be_export);
|
|
if lexlevel<>normal_function_level then
|
|
Message(parser_e_dont_nest_export);
|
|
{ only os/2 needs this }
|
|
if target_info.target=target_i386_os2 then
|
|
begin
|
|
procnames.insert(realname);
|
|
procinfo^.exported:=true;
|
|
if cs_link_deffile in aktglobalswitches then
|
|
deffile.AddExport(aktprocsym^.definition^.mangledname);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_inline(const procnames:Tstringcontainer);
|
|
begin
|
|
if not(cs_support_inline in aktmoduleswitches) then
|
|
Message(parser_e_proc_inline_not_supported);
|
|
end;
|
|
|
|
procedure pd_forward(const procnames:Tstringcontainer);
|
|
begin
|
|
aktprocsym^.definition^.forwarddef:=true;
|
|
end;
|
|
|
|
procedure pd_stdcall(const procnames:Tstringcontainer);
|
|
begin
|
|
end;
|
|
|
|
procedure pd_safecall(const procnames:Tstringcontainer);
|
|
begin
|
|
end;
|
|
|
|
procedure pd_alias(const procnames:Tstringcontainer);
|
|
begin
|
|
consume(_COLON);
|
|
procnames.insert(get_stringconst);
|
|
end;
|
|
|
|
procedure pd_asmname(const procnames:Tstringcontainer);
|
|
begin
|
|
aktprocsym^.definition^.setmangledname(target_os.Cprefix+pattern);
|
|
if token=_CCHAR then
|
|
consume(_CCHAR)
|
|
else
|
|
consume(_CSTRING);
|
|
{ we don't need anything else }
|
|
aktprocsym^.definition^.forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_intern(const procnames:Tstringcontainer);
|
|
begin
|
|
consume(_COLON);
|
|
aktprocsym^.definition^.extnumber:=get_intconst;
|
|
end;
|
|
|
|
procedure pd_interrupt(const procnames:Tstringcontainer);
|
|
begin
|
|
{$ifndef i386}
|
|
Message(parser_w_proc_interrupt_ignored);
|
|
{$else i386}
|
|
if lexlevel<>normal_function_level then
|
|
Message(parser_e_dont_nest_interrupt);
|
|
{$endif i386}
|
|
end;
|
|
|
|
procedure pd_system(const procnames:Tstringcontainer);
|
|
begin
|
|
aktprocsym^.definition^.setmangledname(realname);
|
|
end;
|
|
|
|
procedure pd_abstract(const procnames:Tstringcontainer);
|
|
begin
|
|
if (po_virtualmethod in aktprocsym^.definition^.procoptions) then
|
|
include(aktprocsym^.definition^.procoptions,po_abstractmethod)
|
|
else
|
|
Message(parser_e_only_virtual_methods_abstract);
|
|
{ the method is defined }
|
|
aktprocsym^.definition^.forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_virtual(const procnames:Tstringcontainer);
|
|
{$ifdef WITHDMT}
|
|
var
|
|
pt : tnode;
|
|
{$endif WITHDMT}
|
|
begin
|
|
if (aktprocsym^.definition^.proctypeoption=potype_constructor) and
|
|
not(aktprocsym^.definition^._class^.is_class) then
|
|
Message(parser_e_constructor_cannot_be_not_virtual);
|
|
{$ifdef WITHDMT}
|
|
if not(aktprocsym^.definition^._class^.is_class) and
|
|
(token<>_SEMICOLON) then
|
|
begin
|
|
{ any type of parameter is allowed here! }
|
|
|
|
pt:=comp_expr(true);
|
|
do_firstpass(pt);
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(aktprocsym^.definition^.procoptions,po_msgint);
|
|
aktprocsym^.definition^.messageinf.i:=pt^.value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
disposetree(pt);
|
|
end;
|
|
{$endif WITHDMT}
|
|
end;
|
|
|
|
procedure pd_static(const procnames:Tstringcontainer);
|
|
begin
|
|
if (cs_static_keyword in aktmoduleswitches) then
|
|
begin
|
|
include(aktprocsym^.symoptions,sp_static);
|
|
include(aktprocsym^.definition^.procoptions,po_staticmethod);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_override(const procnames:Tstringcontainer);
|
|
begin
|
|
if not(aktprocsym^.definition^._class^.is_class) then
|
|
Message(parser_e_no_object_override);
|
|
end;
|
|
|
|
procedure pd_overload(const procnames:Tstringcontainer);
|
|
begin
|
|
end;
|
|
|
|
procedure pd_message(const procnames:Tstringcontainer);
|
|
var
|
|
pt : tnode;
|
|
begin
|
|
{ check parameter type }
|
|
if not(po_containsself in aktprocsym^.definition^.procoptions) and
|
|
((aktprocsym^.definition^.minparacount<>1) or
|
|
(aktprocsym^.definition^.maxparacount<>1) or
|
|
(pparaitem(aktprocsym^.definition^.para^.first)^.paratyp<>vs_var)) then
|
|
Message(parser_e_ill_msg_param);
|
|
pt:=comp_expr(true);
|
|
do_firstpass(pt);
|
|
if pt.nodetype=stringconstn then
|
|
begin
|
|
include(aktprocsym^.definition^.procoptions,po_msgstr);
|
|
aktprocsym^.definition^.messageinf.str:=strnew(tstringconstnode(pt).value_str);
|
|
end
|
|
else
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(aktprocsym^.definition^.procoptions,po_msgint);
|
|
aktprocsym^.definition^.messageinf.i:=tordconstnode(pt).value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
pt.free;
|
|
end;
|
|
|
|
|
|
procedure resetvaluepara(p:pnamedindexobject);
|
|
begin
|
|
if psym(p)^.typ=varsym then
|
|
with pvarsym(p)^ do
|
|
if copy(name,1,3)='val' then
|
|
aktprocsym^.definition^.parast^.symsearch^.rename(name,copy(name,4,length(name)));
|
|
end;
|
|
|
|
|
|
procedure pd_cdecl(const procnames:Tstringcontainer);
|
|
begin
|
|
if aktprocsym^.definition^.deftype<>procvardef then
|
|
aktprocsym^.definition^.setmangledname(target_os.Cprefix+realname);
|
|
{ do not copy on local !! }
|
|
if (aktprocsym^.definition^.deftype=procdef) and
|
|
assigned(aktprocsym^.definition^.parast) then
|
|
aktprocsym^.definition^.parast^.foreach({$ifdef FPCPROCVAR}@{$endif}resetvaluepara);
|
|
end;
|
|
|
|
procedure pd_cppdecl(const procnames:Tstringcontainer);
|
|
begin
|
|
if aktprocsym^.definition^.deftype<>procvardef then
|
|
aktprocsym^.definition^.setmangledname(
|
|
target_os.Cprefix+aktprocsym^.definition^.cplusplusmangledname(realname));
|
|
{ do not copy on local !! }
|
|
if (aktprocsym^.definition^.deftype=procdef) and
|
|
assigned(aktprocsym^.definition^.parast) then
|
|
aktprocsym^.definition^.parast^.foreach({$ifdef FPCPROCVAR}@{$endif}resetvaluepara);
|
|
end;
|
|
|
|
|
|
procedure pd_pascal(const procnames:Tstringcontainer);
|
|
var st,parast : psymtable;
|
|
lastps,ps : psym;
|
|
begin
|
|
new(st,init(parasymtable));
|
|
parast:=aktprocsym^.definition^.parast;
|
|
lastps:=nil;
|
|
while assigned(parast^.symindex^.first) and (lastps<>psym(parast^.symindex^.first)) do
|
|
begin
|
|
ps:=psym(parast^.symindex^.first);
|
|
while assigned(ps^.indexnext) and (psym(ps^.indexnext)<>lastps) do
|
|
ps:=psym(ps^.indexnext);
|
|
ps^.owner:=st;
|
|
{ recalculate the corrected offset }
|
|
{ the really_insert_in_data procedure
|
|
for parasymtable should only calculateoffset PM }
|
|
ps^.insert_in_data;
|
|
{ reset the owner correctly }
|
|
ps^.owner:=parast;
|
|
lastps:=ps;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure pd_register(const procnames:Tstringcontainer);
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'REGISTER');
|
|
end;
|
|
|
|
|
|
procedure pd_reintroduce(const procnames:Tstringcontainer);
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'REINTRODUCE');
|
|
end;
|
|
|
|
|
|
procedure pd_syscall(const procnames:Tstringcontainer);
|
|
begin
|
|
aktprocsym^.definition^.forwarddef:=false;
|
|
aktprocsym^.definition^.extnumber:=get_intconst;
|
|
end;
|
|
|
|
|
|
procedure pd_external(const procnames:Tstringcontainer);
|
|
{
|
|
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
|
|
import_dll,
|
|
import_name : string;
|
|
import_nr : word;
|
|
begin
|
|
aktprocsym^.definition^.forwarddef:=false;
|
|
{ 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) }
|
|
import_nr:=0;
|
|
import_name:='';
|
|
if not(token=_SEMICOLON) and not(idtoken=_NAME) then
|
|
begin
|
|
import_dll:=get_stringconst;
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=get_stringconst;
|
|
end;
|
|
if (idtoken=_INDEX) then
|
|
begin
|
|
{After the word index follows the index number in the DLL.}
|
|
consume(_INDEX);
|
|
import_nr:=get_intconst;
|
|
end;
|
|
if (import_nr=0) and (import_name='') then
|
|
{if (aktprocsym^.definition^.options and pocdecl)<>0 then
|
|
import_name:=aktprocsym^.definition^.mangledname
|
|
else
|
|
Message(parser_w_empty_import_name);}
|
|
{ this should work both for win32 and Linux !! PM }
|
|
import_name:=realname;
|
|
if not(current_module^.uses_imports) then
|
|
begin
|
|
current_module^.uses_imports:=true;
|
|
importlib^.preparelib(current_module^.modulename^);
|
|
end;
|
|
if not(m_repeat_forward in aktmodeswitches) then
|
|
begin
|
|
{ we can only have one overloaded here ! }
|
|
if assigned(aktprocsym^.definition^.nextoverloaded) then
|
|
importlib^.importprocedure(aktprocsym^.definition^.nextoverloaded^.mangledname,
|
|
import_dll,import_nr,import_name)
|
|
else
|
|
importlib^.importprocedure(aktprocsym^.mangledname,import_dll,import_nr,import_name);
|
|
end
|
|
else
|
|
importlib^.importprocedure(aktprocsym^.mangledname,import_dll,import_nr,import_name);
|
|
end
|
|
else
|
|
begin
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=get_stringconst;
|
|
aktprocsym^.definition^.setmangledname(import_name);
|
|
end
|
|
else
|
|
begin
|
|
{ external shouldn't override the cdecl/system name }
|
|
if not (pocall_clearstack in aktprocsym^.definition^.proccalloptions) then
|
|
aktprocsym^.definition^.setmangledname(aktprocsym^.name);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
type
|
|
pd_handler=procedure(const procnames:Tstringcontainer);
|
|
proc_dir_rec=record
|
|
idtok : ttoken;
|
|
pd_flags : longint;
|
|
handler : pd_handler;
|
|
pocall : tproccalloptions;
|
|
pooption : tprocoptions;
|
|
mutexclpocall : tproccalloptions;
|
|
mutexclpotype : tproctypeoptions;
|
|
mutexclpo : tprocoptions;
|
|
end;
|
|
const
|
|
{Should contain the number of procedure directives we support.}
|
|
num_proc_directives=32;
|
|
proc_direcdata:array[1..num_proc_directives] of proc_dir_rec=
|
|
(
|
|
(
|
|
idtok:_ABSTRACT;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_abstract;
|
|
pocall : [];
|
|
pooption : [po_abstractmethod];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_exports,po_interrupt,po_external]
|
|
),(
|
|
idtok:_ALIAS;
|
|
pd_flags : pd_implemen+pd_body;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_alias;
|
|
pocall : [];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_ASMNAME;
|
|
pd_flags : pd_interface+pd_implemen;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_asmname;
|
|
pocall : [pocall_cdecl,pocall_clearstack];
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_ASSEMBLER;
|
|
pd_flags : pd_implemen+pd_body;
|
|
handler : nil;
|
|
pocall : [];
|
|
pooption : [po_assembler];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_CDECL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_cdecl;
|
|
pocall : [pocall_cdecl,pocall_clearstack];
|
|
pooption : [po_savestdregs];
|
|
mutexclpocall : [pocall_cppdecl,pocall_internproc,pocall_leftright,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_DYNAMIC;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_virtual;
|
|
pocall : [];
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_external]
|
|
),(
|
|
idtok:_EXPORT;
|
|
pd_flags : pd_body+pd_global+pd_interface+pd_implemen{??};
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_export;
|
|
pocall : [];
|
|
pooption : [po_exports];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_interrupt]
|
|
),(
|
|
idtok:_EXTERNAL;
|
|
pd_flags : pd_implemen+pd_interface;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_external;
|
|
pocall : [];
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_internproc,pocall_inline,pocall_palmossyscall];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_assembler]
|
|
),(
|
|
idtok:_FAR;
|
|
pd_flags : pd_implemen+pd_body+pd_interface+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_far;
|
|
pocall : [];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_FORWARD;
|
|
pd_flags : pd_implemen;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_forward;
|
|
pocall : [];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_INLINE;
|
|
pd_flags : pd_implemen+pd_body;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_inline;
|
|
pocall : [pocall_inline];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_exports,po_external,po_interrupt]
|
|
),(
|
|
idtok:_INTERNCONST;
|
|
pd_flags : pd_implemen+pd_body;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_intern;
|
|
pocall : [pocall_internconst];
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_operator];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_INTERNPROC;
|
|
pd_flags : pd_implemen;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_intern;
|
|
pocall : [pocall_internproc];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_inline,pocall_clearstack,pocall_leftright,pocall_cdecl,pocall_cppdecl];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_exports,po_external,po_interrupt,po_assembler,po_iocheck]
|
|
),(
|
|
idtok:_INTERRUPT;
|
|
pd_flags : pd_implemen+pd_body;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_interrupt;
|
|
pocall : [];
|
|
pooption : [po_interrupt];
|
|
mutexclpocall : [pocall_internproc,pocall_cdecl,pocall_cppdecl,pocall_clearstack,pocall_leftright,pocall_inline];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_IOCHECK;
|
|
pd_flags : pd_implemen+pd_body;
|
|
handler : nil;
|
|
pocall : [];
|
|
pooption : [po_iocheck];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_MESSAGE;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_message;
|
|
pocall : [];
|
|
pooption : []; { can be po_msgstr or po_msgint }
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_interrupt,po_external]
|
|
),(
|
|
idtok:_NEAR;
|
|
pd_flags : pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_near;
|
|
pocall : [];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERLOAD;
|
|
pd_flags : pd_implemen+pd_interface+pd_body;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_overload;
|
|
pocall : [];
|
|
pooption : [po_overload];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERRIDE;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_override;
|
|
pocall : [];
|
|
pooption : [po_overridingmethod,po_virtualmethod];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_external,po_interrupt]
|
|
),(
|
|
idtok:_PASCAL;
|
|
pd_flags : pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_pascal;
|
|
pocall : [pocall_leftright];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_POPSTACK;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : [pocall_clearstack];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_PUBLIC;
|
|
pd_flags : pd_implemen+pd_body+pd_global+pd_notobject;
|
|
handler : nil;
|
|
pocall : [];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_REGISTER;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_register;
|
|
pocall : [pocall_register];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_leftright,pocall_cdecl,pocall_internproc,pocall_cppdecl];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_REINTRODUCE;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_reintroduce;
|
|
pocall : [];
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_SAFECALL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_safecall;
|
|
pocall : [pocall_safecall];
|
|
pooption : [po_savestdregs];
|
|
mutexclpocall : [pocall_leftright,pocall_cdecl,pocall_cppdecl,pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SAVEREGISTERS;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : [];
|
|
pooption : [po_saveregisters];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_STATIC;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_static;
|
|
pocall : [];
|
|
pooption : [po_staticmethod];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_STDCALL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_stdcall;
|
|
pocall : [pocall_stdcall];
|
|
pooption : [po_savestdregs];
|
|
mutexclpocall : [pocall_leftright,pocall_cdecl,pocall_cppdecl,pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SYSCALL;
|
|
pd_flags : pd_interface;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_syscall;
|
|
pocall : [pocall_palmossyscall];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_cdecl,pocall_cppdecl,pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_assembler,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_SYSTEM;
|
|
pd_flags : pd_implemen;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_system;
|
|
pocall : [pocall_clearstack];
|
|
pooption : [];
|
|
mutexclpocall : [pocall_leftright,pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_assembler,po_interrupt]
|
|
),(
|
|
idtok:_VIRTUAL;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_virtual;
|
|
pocall : [];
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_CPPDECL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_cppdecl;
|
|
pocall : [pocall_cppdecl,pocall_clearstack];
|
|
pooption : [po_savestdregs];
|
|
mutexclpocall : [pocall_cdecl,pocall_internproc,pocall_leftright,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_assembler,po_external]
|
|
)
|
|
);
|
|
|
|
|
|
function is_proc_directive(tok:ttoken):boolean;
|
|
var
|
|
i : longint;
|
|
begin
|
|
is_proc_directive:=false;
|
|
for i:=1 to num_proc_directives do
|
|
if proc_direcdata[i].idtok=idtoken then
|
|
begin
|
|
is_proc_directive:=true;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
|
|
function parse_proc_direc(const proc_names:Tstringcontainer;var pdflags:word):boolean;
|
|
{
|
|
Parse the procedure directive, returns true if a correct directive is found
|
|
}
|
|
var
|
|
p : longint;
|
|
found : boolean;
|
|
name : string;
|
|
begin
|
|
parse_proc_direc:=false;
|
|
name:=pattern;
|
|
found:=false;
|
|
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 and (pd_procvar or pd_object))=0 then
|
|
Message1(parser_w_unknown_proc_directive_ignored,name);
|
|
exit;
|
|
end;
|
|
|
|
{ static needs a special treatment }
|
|
if (idtoken=_STATIC) and not (cs_static_keyword in aktmoduleswitches) then
|
|
exit;
|
|
|
|
{ Conflicts between directives ? }
|
|
if (aktprocsym^.definition^.proctypeoption in proc_direcdata[p].mutexclpotype) or
|
|
((aktprocsym^.definition^.proccalloptions*proc_direcdata[p].mutexclpocall)<>[]) or
|
|
((aktprocsym^.definition^.procoptions*proc_direcdata[p].mutexclpo)<>[]) then
|
|
begin
|
|
Message1(parser_e_proc_dir_conflict,name);
|
|
exit;
|
|
end;
|
|
|
|
{ Check if the directive is only for objects }
|
|
if ((proc_direcdata[p].pd_flags and pd_object)<>0) and
|
|
not assigned(aktprocsym^.definition^._class) then
|
|
begin
|
|
exit;
|
|
end;
|
|
{ check if method and directive not for object public }
|
|
if ((proc_direcdata[p].pd_flags and pd_notobject)<>0) and
|
|
assigned(aktprocsym^.definition^._class) then
|
|
begin
|
|
exit;
|
|
end;
|
|
|
|
{ consume directive, and turn flag on }
|
|
consume(token);
|
|
parse_proc_direc:=true;
|
|
|
|
{ Check the pd_flags if the directive should be allowed }
|
|
if ((pdflags and pd_interface)<>0) and
|
|
((proc_direcdata[p].pd_flags and pd_interface)=0) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_interface,name);
|
|
exit;
|
|
end;
|
|
if ((pdflags and pd_implemen)<>0) and
|
|
((proc_direcdata[p].pd_flags and pd_implemen)=0) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_implementation,name);
|
|
exit;
|
|
end;
|
|
if ((pdflags and pd_procvar)<>0) and
|
|
((proc_direcdata[p].pd_flags and pd_procvar)=0) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_procvar,name);
|
|
exit;
|
|
end;
|
|
|
|
{ Return the new pd_flags }
|
|
if (proc_direcdata[p].pd_flags and pd_body)=0 then
|
|
pdflags:=pdflags and (not pd_body);
|
|
if (proc_direcdata[p].pd_flags and pd_global)<>0 then
|
|
pdflags:=pdflags or pd_global;
|
|
|
|
{ Add the correct flag }
|
|
aktprocsym^.definition^.proccalloptions:=aktprocsym^.definition^.proccalloptions+proc_direcdata[p].pocall;
|
|
aktprocsym^.definition^.procoptions:=aktprocsym^.definition^.procoptions+proc_direcdata[p].pooption;
|
|
|
|
{ Adjust positions of args for cdecl or stdcall }
|
|
if (aktprocsym^.definition^.deftype=procdef) and
|
|
(([pocall_cdecl,pocall_cppdecl,pocall_stdcall]*aktprocsym^.definition^.proccalloptions)<>[]) then
|
|
aktprocsym^.definition^.parast^.set_alignment(target_os.size_of_longint);
|
|
|
|
{ Call the handler }
|
|
if pointer({$ifndef FPC}@{$endif}proc_direcdata[p].handler)<>nil then
|
|
proc_direcdata[p].handler(proc_names);
|
|
end;
|
|
|
|
|
|
procedure parse_proc_directives(Anames:Pstringcontainer;var pdflags:word);
|
|
{
|
|
Parse the procedure directives. It does not matter if procedure directives
|
|
are written using ;procdir; or ['procdir'] syntax.
|
|
}
|
|
var
|
|
res : boolean;
|
|
begin
|
|
while token in [_ID,_LECKKLAMMER] do
|
|
begin
|
|
if try_to_consume(_LECKKLAMMER) then
|
|
begin
|
|
repeat
|
|
parse_proc_direc(Anames^,pdflags);
|
|
until not try_to_consume(_COMMA);
|
|
consume(_RECKKLAMMER);
|
|
{ we always expect at least '[];' }
|
|
res:=true;
|
|
end
|
|
else
|
|
res:=parse_proc_direc(Anames^,pdflags);
|
|
{ A procedure directive normally followed by a semicolon, but in
|
|
a const section we should stop when _EQUAL is found }
|
|
if res then
|
|
begin
|
|
if (block_type=bt_const) and
|
|
(token=_EQUAL) then
|
|
break;
|
|
{ support procedure proc;stdcall export; in Delphi mode only }
|
|
if not((m_delphi in aktmodeswitches) and
|
|
is_proc_directive(token)) then
|
|
consume(_SEMICOLON);
|
|
end
|
|
else
|
|
break;
|
|
end;
|
|
end;
|
|
|
|
procedure parse_var_proc_directives(var sym : psym);
|
|
var
|
|
anames : pstringcontainer;
|
|
pdflags : word;
|
|
oldsym : pprocsym;
|
|
pd : pabstractprocdef;
|
|
begin
|
|
oldsym:=aktprocsym;
|
|
anames:=new(pstringcontainer,init);
|
|
pdflags:=pd_procvar;
|
|
{ we create a temporary aktprocsym to read the directives }
|
|
aktprocsym:=new(pprocsym,init(sym^.name));
|
|
case sym^.typ of
|
|
varsym :
|
|
pd:=pabstractprocdef(pvarsym(sym)^.vartype.def);
|
|
typedconstsym :
|
|
pd:=pabstractprocdef(ptypedconstsym(sym)^.typedconsttype.def);
|
|
typesym :
|
|
pd:=pabstractprocdef(ptypesym(sym)^.restype.def);
|
|
else
|
|
internalerror(994932432);
|
|
end;
|
|
if pd^.deftype<>procvardef then
|
|
internalerror(994932433);
|
|
pabstractprocdef(aktprocsym^.definition):=pd;
|
|
{ names should never be used anyway }
|
|
inc(lexlevel);
|
|
parse_proc_directives(anames,pdflags);
|
|
dec(lexlevel);
|
|
aktprocsym^.definition:=nil;
|
|
dispose(aktprocsym,done);
|
|
dispose(anames,done);
|
|
aktprocsym:=oldsym;
|
|
end;
|
|
|
|
|
|
procedure parse_object_proc_directives(var sym : pprocsym);
|
|
var
|
|
anames : pstringcontainer;
|
|
pdflags : word;
|
|
begin
|
|
pdflags:=pd_object;
|
|
anames:=new(pstringcontainer,init);
|
|
inc(lexlevel);
|
|
parse_proc_directives(anames,pdflags);
|
|
dec(lexlevel);
|
|
dispose(anames,done);
|
|
if (po_containsself in aktprocsym^.definition^.procoptions) and
|
|
(([po_msgstr,po_msgint]*aktprocsym^.definition^.procoptions)=[]) then
|
|
Message(parser_e_self_in_non_message_handler);
|
|
end;
|
|
|
|
{***************************************************************************}
|
|
|
|
function check_identical_proc(var p : pprocdef) : boolean;
|
|
{
|
|
Search for idendical definitions,
|
|
if there is a forward, then kill this.
|
|
|
|
Returns the result of the forward check.
|
|
|
|
Removed from unter_dec to keep the source readable
|
|
}
|
|
var
|
|
hd,pd : Pprocdef;
|
|
storeparast : psymtable;
|
|
ad,fd : psym;
|
|
s : string;
|
|
begin
|
|
check_identical_proc:=false;
|
|
p:=nil;
|
|
pd:=aktprocsym^.definition;
|
|
if assigned(pd) then
|
|
begin
|
|
{ Is there an overload/forward ? }
|
|
if assigned(pd^.nextoverloaded) then
|
|
begin
|
|
{ walk the procdef list }
|
|
while (assigned(pd)) and (assigned(pd^.nextoverloaded)) do
|
|
begin
|
|
hd:=pd^.nextoverloaded;
|
|
|
|
{ check the parameters }
|
|
if (not(m_repeat_forward in aktmodeswitches) and
|
|
(aktprocsym^.definition^.maxparacount=0)) or
|
|
(equal_paras(aktprocsym^.definition^.para,hd^.para,cp_none) and
|
|
{ for operators equal_paras is not enough !! }
|
|
((aktprocsym^.definition^.proctypeoption<>potype_operator) or (optoken<>_ASSIGNMENT) or
|
|
is_equal(hd^.rettype.def,aktprocsym^.definition^.rettype.def))) then
|
|
begin
|
|
if not equal_paras(aktprocsym^.definition^.para,hd^.para,cp_all) and
|
|
((m_repeat_forward in aktmodeswitches) or
|
|
(aktprocsym^.definition^.maxparacount>0)) then
|
|
begin
|
|
MessagePos1(aktprocsym^.definition^.fileinfo,parser_e_header_dont_match_forward,
|
|
aktprocsym^.demangledName);
|
|
exit;
|
|
end;
|
|
if hd^.forwarddef then
|
|
{ remove the forward definition but don't delete it, }
|
|
{ the symtable is the owner !! }
|
|
begin
|
|
{ Check if the procedure type and return type are correct }
|
|
if (hd^.proctypeoption<>aktprocsym^.definition^.proctypeoption) or
|
|
(not(is_equal(hd^.rettype.def,aktprocsym^.definition^.rettype.def)) and
|
|
(m_repeat_forward in aktmodeswitches)) then
|
|
begin
|
|
MessagePos1(aktprocsym^.definition^.fileinfo,parser_e_header_dont_match_forward,
|
|
aktprocsym^.demangledName);
|
|
exit;
|
|
end;
|
|
{ Check calling convention, no check for internconst,internproc which
|
|
are only defined in interface or implementation }
|
|
if (hd^.proccalloptions-[pocall_internconst,pocall_internproc]<>
|
|
aktprocsym^.definition^.proccalloptions-[pocall_internconst,pocall_internproc]) then
|
|
begin
|
|
{ only trigger an error, becuase it doesn't hurt, for delphi check
|
|
if the current implementation has no proccalloptions, then
|
|
take the options from the interface }
|
|
if (m_delphi in aktmodeswitches) then
|
|
begin
|
|
if (aktprocsym^.definition^.proccalloptions=[]) then
|
|
aktprocsym^.definition^.proccalloptions:=hd^.proccalloptions
|
|
else
|
|
MessagePos(aktprocsym^.definition^.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
end
|
|
else
|
|
MessagePos(aktprocsym^.definition^.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
{ set the mangledname to the interface name so it doesn't trigger
|
|
the Note about different manglednames (PFV) }
|
|
aktprocsym^.definition^.setmangledname(hd^.mangledname);
|
|
end;
|
|
{ manglednames are equal? }
|
|
hd^.count:=false;
|
|
if (m_repeat_forward in aktmodeswitches) or
|
|
aktprocsym^.definition^.haspara then
|
|
begin
|
|
if (hd^.mangledname<>aktprocsym^.definition^.mangledname) then
|
|
begin
|
|
if not(po_external in aktprocsym^.definition^.procoptions) then
|
|
MessagePos2(aktprocsym^.definition^.fileinfo,parser_n_interface_name_diff_implementation_name,hd^.mangledname,
|
|
aktprocsym^.definition^.mangledname);
|
|
{ reset the mangledname of the interface part to be sure }
|
|
{ this is wrong because the mangled name might have been used already !! }
|
|
if hd^.is_used then
|
|
renameasmsymbol(hd^.mangledname,aktprocsym^.definition^.mangledname);
|
|
hd^.setmangledname(aktprocsym^.definition^.mangledname);
|
|
{ so we need to keep the name of interface !!
|
|
No!!!! The procedure directives can change the mangledname.
|
|
I fixed this by first calling check_identical_proc and then doing
|
|
the proc directives, but this is not a good solution.(DM)}
|
|
{ this is also wrong (PM)
|
|
aktprocsym^.definition^.setmangledname(hd^.mangledname);}
|
|
end
|
|
else
|
|
begin
|
|
{ If mangled names are equal, therefore }
|
|
{ they have the same number of parameters }
|
|
{ Therefore we can check the name of these }
|
|
{ parameters... }
|
|
if hd^.forwarddef and aktprocsym^.definition^.forwarddef then
|
|
begin
|
|
MessagePos1(aktprocsym^.definition^.fileinfo,
|
|
parser_e_function_already_declared_public_forward,aktprocsym^.demangledName);
|
|
check_identical_proc:=true;
|
|
{ Remove other forward from the list to reduce errors }
|
|
pd^.nextoverloaded:=pd^.nextoverloaded^.nextoverloaded;
|
|
exit;
|
|
end;
|
|
ad:=psym(hd^.parast^.symindex^.first);
|
|
fd:=psym(aktprocsym^.definition^.parast^.symindex^.first);
|
|
if assigned(ad) and assigned(fd) then
|
|
begin
|
|
while assigned(ad) and assigned(fd) do
|
|
begin
|
|
s:=ad^.name;
|
|
if s<>fd^.name then
|
|
begin
|
|
MessagePos3(aktprocsym^.definition^.fileinfo,parser_e_header_different_var_names,
|
|
aktprocsym^.name,s,fd^.name);
|
|
break;
|
|
end;
|
|
{ it is impossible to have a nil pointer }
|
|
{ for only one parameter - since they }
|
|
{ have the same number of parameters. }
|
|
{ Left = next parameter. }
|
|
ad:=psym(ad^.left);
|
|
fd:=psym(fd^.left);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
{ also the para_offset }
|
|
hd^.parast^.address_fixup:=aktprocsym^.definition^.parast^.address_fixup;
|
|
hd^.count:=true;
|
|
|
|
{ remove pd^.nextoverloaded from the list }
|
|
{ and add aktprocsym^.definition }
|
|
pd^.nextoverloaded:=pd^.nextoverloaded^.nextoverloaded;
|
|
hd^.nextoverloaded:=aktprocsym^.definition^.nextoverloaded;
|
|
{ Alert! All fields of aktprocsym^.definition that are modified
|
|
by the procdir handlers must be copied here!.}
|
|
hd^.forwarddef:=false;
|
|
hd^.hasforward:=true;
|
|
hd^.proccalloptions:=hd^.proccalloptions + aktprocsym^.definition^.proccalloptions;
|
|
hd^.procoptions:=hd^.procoptions + aktprocsym^.definition^.procoptions;
|
|
if aktprocsym^.definition^.extnumber=-1 then
|
|
aktprocsym^.definition^.extnumber:=hd^.extnumber
|
|
else
|
|
if hd^.extnumber=-1 then
|
|
hd^.extnumber:=aktprocsym^.definition^.extnumber;
|
|
{ switch parast for warning in implementation PM }
|
|
if (m_repeat_forward in aktmodeswitches) or
|
|
aktprocsym^.definition^.haspara then
|
|
begin
|
|
storeparast:=hd^.parast;
|
|
hd^.parast:=aktprocsym^.definition^.parast;
|
|
aktprocsym^.definition^.parast:=storeparast;
|
|
end;
|
|
if pd=aktprocsym^.definition then
|
|
p:=nil
|
|
else
|
|
p:=pd;
|
|
aktprocsym^.definition:=hd;
|
|
check_identical_proc:=true;
|
|
end
|
|
else
|
|
{ abstract methods aren't forward defined, but this }
|
|
{ needs another error message }
|
|
if not(po_abstractmethod in pd^.nextoverloaded^.procoptions) then
|
|
MessagePos(aktprocsym^.definition^.fileinfo,parser_e_overloaded_have_same_parameters)
|
|
else
|
|
MessagePos(aktprocsym^.definition^.fileinfo,parser_e_abstract_no_definition);
|
|
break;
|
|
end;
|
|
|
|
{ check for allowing overload directive }
|
|
if not(m_fpc in aktmodeswitches) then
|
|
begin
|
|
{ overload directive turns on overloading }
|
|
if ((po_overload in aktprocsym^.definition^.procoptions) or
|
|
((po_overload in hd^.procoptions))) then
|
|
begin
|
|
{ check if all procs have overloading, but not if the proc was
|
|
already declared forward, then the check is already done }
|
|
if not(hd^.hasforward) and
|
|
(aktprocsym^.definition^.forwarddef=hd^.forwarddef) and
|
|
not((po_overload in aktprocsym^.definition^.procoptions) and
|
|
((po_overload in hd^.procoptions))) then
|
|
begin
|
|
MessagePos1(aktprocsym^.definition^.fileinfo,parser_e_no_overload_for_all_procs,aktprocsym^.name);
|
|
break;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if not(hd^.forwarddef) then
|
|
begin
|
|
MessagePos(aktprocsym^.definition^.fileinfo,parser_e_procedure_overloading_is_off);
|
|
break;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ try next overloaded }
|
|
pd:=pd^.nextoverloaded;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ there is no overloaded, so its always identical with itself }
|
|
check_identical_proc:=true;
|
|
end;
|
|
end;
|
|
{ insert opsym only in the right symtable }
|
|
if ((procinfo^.flags and pi_operator)<>0) and assigned(opsym)
|
|
and not parse_only then
|
|
begin
|
|
if ret_in_param(aktprocsym^.definition^.rettype.def) then
|
|
begin
|
|
pprocdef(aktprocsym^.definition)^.parast^.insert(opsym);
|
|
{ this increases the data size }
|
|
{ correct this to get the right ret $value }
|
|
dec(pprocdef(aktprocsym^.definition)^.parast^.datasize,opsym^.getpushsize);
|
|
{ this allows to read the funcretoffset }
|
|
opsym^.address:=-4;
|
|
opsym^.varspez:=vs_var;
|
|
end
|
|
else
|
|
pprocdef(aktprocsym^.definition)^.localst^.insert(opsym);
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
procedure checkvaluepara(p:pnamedindexobject);
|
|
var
|
|
vs : pvarsym;
|
|
s : string;
|
|
begin
|
|
with pvarsym(p)^ do
|
|
begin
|
|
if copy(name,1,3)='val' then
|
|
begin
|
|
s:=Copy(name,4,255);
|
|
if not(po_assembler in aktprocsym^.definition^.procoptions) then
|
|
begin
|
|
vs:=new(Pvarsym,initdef(s,vartype.def));
|
|
vs^.fileinfo:=fileinfo;
|
|
vs^.varspez:=varspez;
|
|
aktprocsym^.definition^.localst^.insert(vs);
|
|
include(vs^.varoptions,vo_is_local_copy);
|
|
vs^.varstate:=vs_assigned;
|
|
localvarsym:=vs;
|
|
inc(refs); { the para was used to set the local copy ! }
|
|
{ warnings only on local copy ! }
|
|
varstate:=vs_used;
|
|
end
|
|
else
|
|
begin
|
|
aktprocsym^.definition^.parast^.rename(name,s);
|
|
end;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.1 2000-10-14 10:14:51 peter
|
|
* moehrendorf oct 2000 rewrite
|
|
|
|
} |