mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 04:31:35 +01:00
2465 lines
87 KiB
ObjectPascal
2465 lines
87 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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tokens,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 implementation section }
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pd_interface, { directive can be used interface section }
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pd_object, { directive can be used object declaration }
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pd_procvar, { directive can be used procvar declaration }
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pd_notobject, { directive can not be used object declaration }
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pd_notobjintf, { directive can not be used interface declaration }
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pd_notprocvar { directive can not be used procvar declaration }
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);
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tpdflags=set of tpdflag;
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function check_proc_directive(isprocvar:boolean):boolean;
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procedure insert_funcret_local(pd:tprocdef);
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function proc_add_definition(var pd: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);
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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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function parse_proc_head(aclass:tobjectdef;potype:tproctypeoption;var pd:tprocdef):boolean;
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function parse_proc_dec(aclass:tobjectdef):tprocdef;
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implementation
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uses
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strings,
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{ common }
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cutils,cclasses,
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{ global }
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globtype,globals,verbose,
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systems,
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cpuinfo,
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{ symtable }
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symbase,symtable,defutil,defcmp,paramgr,cpupara,
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{ pass 1 }
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node,htypechk,
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nmat,nadd,ncal,nset,ncnv,ninl,ncon,nld,nflw,
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{ parser }
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scanner,
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pbase,pexpr,ptype,pdecl
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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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procedure insert_funcret_para(pd:tabstractprocdef);
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var
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storepos : tfileposinfo;
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vs : tparavarsym;
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paranr : word;
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begin
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if not(pd.proctypeoption in [potype_constructor,potype_destructor]) and
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not is_void(pd.rettype.def) and
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paramanager.ret_in_param(pd.rettype.def,pd.proccalloption) then
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begin
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storepos:=akttokenpos;
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if pd.deftype=procdef then
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akttokenpos:=tprocdef(pd).fileinfo;
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{ For left to right add it at the end to be delphi compatible }
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if pd.proccalloption in pushleftright_pocalls then
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paranr:=paranr_result_leftright
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else
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paranr:=paranr_result;
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{ Generate result variable accessing function result }
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vs:=tparavarsym.create('$result',paranr,vs_var,pd.rettype,[vo_is_funcret,vo_is_hidden_para]);
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pd.parast.insert(vs);
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{ Store the this symbol as funcretsym for procedures }
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if pd.deftype=procdef then
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tprocdef(pd).funcretsym:=vs;
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akttokenpos:=storepos;
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end;
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end;
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procedure insert_parentfp_para(pd:tabstractprocdef);
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var
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storepos : tfileposinfo;
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vs : tparavarsym;
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begin
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if pd.parast.symtablelevel>normal_function_level then
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begin
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storepos:=akttokenpos;
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if pd.deftype=procdef then
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akttokenpos:=tprocdef(pd).fileinfo;
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{ Generate result variable accessing function result, it
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can't be put in a register since it must be accessable
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from the framepointer }
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vs:=tparavarsym.create('$parentfp',paranr_parentfp,vs_var,voidpointertype,[vo_is_parentfp,vo_is_hidden_para]);
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vs.varregable:=vr_none;
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pd.parast.insert(vs);
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akttokenpos:=storepos;
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end;
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end;
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procedure insert_self_and_vmt_para(pd:tabstractprocdef);
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var
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storepos : tfileposinfo;
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vs : tparavarsym;
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tt : ttype;
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vsp : tvarspez;
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begin
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if (pd.deftype=procvardef) and
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pd.is_methodpointer then
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begin
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{ Generate self variable }
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tt:=voidpointertype;
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vs:=tparavarsym.create('$self',paranr_self,vs_value,tt,[vo_is_self,vo_is_hidden_para]);
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pd.parast.insert(vs);
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end
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else
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begin
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if (pd.deftype=procdef) and
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assigned(tprocdef(pd)._class) and
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(pd.parast.symtablelevel=normal_function_level) then
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begin
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storepos:=akttokenpos;
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akttokenpos:=tprocdef(pd).fileinfo;
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{ Generate VMT variable for constructor/destructor }
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if pd.proctypeoption in [potype_constructor,potype_destructor] then
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begin
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{ can't use classrefdef as type because inheriting
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will then always file because of a type mismatch }
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tt:=voidpointertype;
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vs:=tparavarsym.create('$vmt',paranr_vmt,vs_value,tt,[vo_is_vmt,vo_is_hidden_para]);
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pd.parast.insert(vs);
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end;
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{ Generate self variable, for classes we need
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to use the generic voidpointer to be compatible with
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methodpointers }
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vsp:=vs_value;
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if (po_staticmethod in pd.procoptions) or
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(po_classmethod in pd.procoptions) then
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begin
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tt.setdef(tprocdef(pd)._class);
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tt.setdef(tclassrefdef.create(tt));
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end
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else
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begin
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if is_object(tprocdef(pd)._class) then
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vsp:=vs_var;
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tt.setdef(tprocdef(pd)._class);
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end;
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vs:=tparavarsym.create('$self',paranr_self,vsp,tt,[vo_is_self,vo_is_hidden_para]);
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pd.parast.insert(vs);
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akttokenpos:=storepos;
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end;
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end;
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end;
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procedure insert_funcret_local(pd:tprocdef);
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var
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storepos : tfileposinfo;
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vs : tlocalvarsym;
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aliasvs : tabsolutevarsym;
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sl : tsymlist;
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begin
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{ The result from constructors and destructors can't be accessed directly }
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if not(pd.proctypeoption in [potype_constructor,potype_destructor]) and
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not is_void(pd.rettype.def) then
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begin
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storepos:=akttokenpos;
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akttokenpos:=pd.fileinfo;
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{ We always need a localsymtable }
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if not assigned(pd.localst) then
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pd.insert_localst;
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{ We need to insert a varsym for the result in the localst
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when it is returning in a register }
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if not paramanager.ret_in_param(pd.rettype.def,pd.proccalloption) then
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begin
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vs:=tlocalvarsym.create('$result',vs_value,pd.rettype,[vo_is_funcret]);
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pd.localst.insert(vs);
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pd.funcretsym:=vs;
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end;
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{ insert the name of the procedure as alias for the function result,
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we can't use realname because that will not work for compilerprocs
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as the name is lowercase and unreachable from the code }
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if pd.resultname='' then
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pd.resultname:=pd.procsym.name;
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sl:=tsymlist.create;
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sl.addsym(sl_load,pd.funcretsym);
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aliasvs:=tabsolutevarsym.create_ref(pd.resultname,pd.rettype,sl);
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include(aliasvs.varoptions,vo_is_funcret);
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pd.localst.insert(aliasvs);
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{ insert result also if support is on }
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if (m_result in aktmodeswitches) then
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begin
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sl:=tsymlist.create;
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sl.addsym(sl_load,pd.funcretsym);
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aliasvs:=tabsolutevarsym.create_ref('RESULT',pd.rettype,sl);
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include(aliasvs.varoptions,vo_is_funcret);
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include(aliasvs.varoptions,vo_is_result);
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pd.localst.insert(aliasvs);
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end;
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akttokenpos:=storepos;
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end;
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end;
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procedure insert_hidden_para(p:tnamedindexitem;arg:pointer);
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var
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hvs : tparavarsym;
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pd : tabstractprocdef absolute arg;
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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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{ We need a local copy for a value parameter when only the
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address is pushed. Open arrays and Array of Const are
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an exception because they are allocated at runtime and the
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address that is pushed is patched }
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if (varspez=vs_value) and
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paramanager.push_addr_param(varspez,vartype.def,pd.proccalloption) and
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not(is_open_array(vartype.def) or
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is_array_of_const(vartype.def)) then
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include(varoptions,vo_has_local_copy);
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{ needs high parameter ? }
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if paramanager.push_high_param(varspez,vartype.def,pd.proccalloption) then
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begin
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hvs:=tparavarsym.create('$high'+name,paranr+1,vs_const,sinttype,[vo_is_high_para,vo_is_hidden_para]);
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owner.insert(hvs);
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end
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else
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begin
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{ Give a warning that cdecl routines does not include high()
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support }
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if (pd.proccalloption in [pocall_cdecl,pocall_cppdecl]) and
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paramanager.push_high_param(varspez,vartype.def,pocall_default) then
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begin
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if is_open_string(vartype.def) then
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Message(parser_w_cdecl_no_openstring);
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if not (po_external in pd.procoptions) then
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Message(parser_w_cdecl_has_no_high);
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end;
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end;
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end;
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end;
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procedure check_c_para(p:tnamedindexitem;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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case vartype.def.deftype of
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arraydef :
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begin
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if not is_variant_array(vartype.def) and
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not is_array_of_const(vartype.def) then
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begin
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if (varspez<>vs_var) then
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Message(parser_h_c_arrays_are_references);
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end;
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if is_array_of_const(vartype.def) and
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assigned(indexnext) and
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(tsym(indexnext).typ=paravarsym) and
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not(vo_is_high_para in tparavarsym(indexnext).varoptions) then
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Message(parser_e_C_array_of_const_must_be_last);
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end;
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end;
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end;
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end;
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procedure check_msg_para(p:tnamedindexitem;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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Message(parser_e_ill_msg_param);
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end;
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end;
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procedure check_inline_para(p:tnamedindexitem;arg:pointer);
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var
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pd : tabstractprocdef absolute arg;
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begin
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if not(po_inline in pd.procoptions) or
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(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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case vartype.def.deftype of
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arraydef :
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begin
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with tarraydef(vartype.def) do
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if IsVariant or IsConstructor then
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begin
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Message1(parser_w_not_supported_for_inline,'array of const');
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Message(parser_w_inlining_disabled);
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pd.proccalloption:=pocall_default;
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end;
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end;
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end;
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end;
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end;
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procedure set_addr_param_regable(p:tnamedindexitem;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 vartype.def.needs_inittable and
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paramanager.push_addr_param(varspez,vartype.def,tprocdef(arg).proccalloption) then
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varregable:=vr_intreg;
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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 : tsinglelist;
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tt : ttype;
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arrayelementtype : ttype;
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vs : tparavarsym;
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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_object_option : tsymoptions;
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currparast : tparasymtable;
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parseprocvar : tppv;
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explicit_paraloc : boolean;
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locationstr : string;
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paranr : integer;
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dummytype : ttypesym;
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begin
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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 aktmodeswitches) 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:=tsinglelist.create;
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defaultrequired:=false;
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paranr:=0;
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{ the variables are always public }
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old_object_option:=current_object_option;
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current_object_option:=[sp_public];
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inc(testcurobject);
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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 aktmodeswitches) 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 (m_mac in aktmodeswitches) 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_mac in aktmodeswitches) 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_mac in aktmodeswitches) 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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tt.reset;
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{ read identifiers and insert with error type }
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sc.reset;
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repeat
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inc(paranr);
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vs:=tparavarsym.create(orgpattern,paranr*10,varspez,generrortype,[]);
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currparast.insert(vs);
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if assigned(vs.owner) then
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sc.insert(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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pv:=tprocvardef.create(normal_function_level);
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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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consume(_COLON);
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single_type(pv.rettype,false);
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end;
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tt.def:=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:=ttypesym.create('unnamed',tt);
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parse_var_proc_directives(tsym(dummytype));
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dummytype.restype.def:=nil;
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tt.def.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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end
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else
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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(tarraydef.create(0,-1,s32inttype));
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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:=searchsymonlyin(systemunit,'TVARREC');
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if not assigned(srsym) then
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InternalError(200404181);
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tarraydef(tt.def).setelementtype(ttypesym(srsym).restype);
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tarraydef(tt.def).IsArrayOfConst:=true;
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end
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else
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|
begin
|
|
{ define field type }
|
|
single_type(arrayelementtype,false);
|
|
tarraydef(tt.def).setelementtype(arrayelementtype);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ open string ? }
|
|
if (varspez=vs_var) and
|
|
(
|
|
(
|
|
((token=_STRING) or (idtoken=_SHORTSTRING)) and
|
|
(cs_openstring in aktmoduleswitches) and
|
|
not(cs_ansistrings in aktlocalswitches)
|
|
) or
|
|
(idtoken=_OPENSTRING)) then
|
|
begin
|
|
consume(token);
|
|
tt:=openshortstringtype;
|
|
end
|
|
else
|
|
begin
|
|
{ everything else }
|
|
if (m_mac in aktmodeswitches) then
|
|
try_to_consume(_UNIV); {currently does nothing}
|
|
single_type(tt,false);
|
|
end;
|
|
|
|
if (target_info.system in [system_powerpc_morphos,system_m68k_amiga]) then
|
|
begin
|
|
if (idtoken=_LOCATION) then
|
|
begin
|
|
consume(_LOCATION);
|
|
locationstr:=pattern;
|
|
consume(_CSTRING);
|
|
end
|
|
else
|
|
begin
|
|
if explicit_paraloc then
|
|
Message(parser_e_paraloc_all_paras);
|
|
locationstr:='';
|
|
end;
|
|
end
|
|
else
|
|
locationstr:='';
|
|
|
|
{ default parameter }
|
|
if (m_default_para in aktmodeswitches) then
|
|
begin
|
|
if try_to_consume(_EQUAL) then
|
|
begin
|
|
vs:=tparavarsym(sc.first);
|
|
if assigned(vs.listnext) then
|
|
Message(parser_e_default_value_only_one_para);
|
|
{ prefix 'def' to the parameter name }
|
|
defaultvalue:=ReadConstant('$def'+vs.name,vs.fileinfo);
|
|
if assigned(defaultvalue) then
|
|
begin
|
|
include(defaultvalue.symoptions,sp_internal);
|
|
pd.parast.insert(defaultvalue);
|
|
end;
|
|
defaultrequired:=true;
|
|
end
|
|
else
|
|
begin
|
|
if defaultrequired then
|
|
Message1(parser_e_default_value_expected_for_para,vs.name);
|
|
end;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
tt:=cformaltype;
|
|
|
|
{ File types are only allowed for var parameters }
|
|
if (tt.def.deftype=filedef) and
|
|
(varspez<>vs_var) then
|
|
CGMessage(cg_e_file_must_call_by_reference);
|
|
|
|
vs:=tparavarsym(sc.first);
|
|
while assigned(vs) do
|
|
begin
|
|
{ update varsym }
|
|
vs.vartype:=tt;
|
|
vs.defaultconstsym:=defaultvalue;
|
|
|
|
if (target_info.system in [system_powerpc_morphos,system_m68k_amiga]) then
|
|
begin
|
|
if locationstr<>'' then
|
|
begin
|
|
if assigned(sc.first.listnext) 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,upper(locationstr))) then
|
|
message(parser_e_illegal_explicit_paraloc);
|
|
end
|
|
else
|
|
if explicit_paraloc then
|
|
Message(parser_e_paraloc_all_paras);
|
|
end;
|
|
vs:=tparavarsym(vs.listnext);
|
|
end;
|
|
until not try_to_consume(_SEMICOLON);
|
|
|
|
if explicit_paraloc then
|
|
begin
|
|
pd.has_paraloc_info:=true;
|
|
include(pd.procoptions,po_explicitparaloc);
|
|
end;
|
|
{ remove parasymtable from stack }
|
|
sc.free;
|
|
{ reset object options }
|
|
dec(testcurobject);
|
|
current_object_option:=old_object_option;
|
|
consume(_RKLAMMER);
|
|
end;
|
|
|
|
|
|
function parse_proc_head(aclass:tobjectdef;potype:tproctypeoption;var pd:tprocdef):boolean;
|
|
var
|
|
orgsp,sp : stringid;
|
|
sym : tsym;
|
|
srsym : tsym;
|
|
srsymtable : tsymtable;
|
|
storepos,
|
|
procstartfilepos : tfileposinfo;
|
|
searchagain : boolean;
|
|
i : longint;
|
|
st : tsymtable;
|
|
aprocsym : tprocsym;
|
|
begin
|
|
{ Save the position where this procedure really starts }
|
|
procstartfilepos:=akttokenpos;
|
|
|
|
result:=false;
|
|
pd:=nil;
|
|
aprocsym:=nil;
|
|
|
|
if (potype=potype_operator) then
|
|
begin
|
|
sp:=overloaded_names[optoken];
|
|
orgsp:=sp;
|
|
end
|
|
else
|
|
begin
|
|
sp:=pattern;
|
|
orgsp:=orgpattern;
|
|
consume(_ID);
|
|
end;
|
|
|
|
{ examine interface map: function/procedure iname.functionname=locfuncname }
|
|
if assigned(aclass) and
|
|
assigned(aclass.implementedinterfaces) and
|
|
(aclass.implementedinterfaces.count>0) and
|
|
try_to_consume(_POINT) then
|
|
begin
|
|
storepos:=akttokenpos;
|
|
akttokenpos:=procstartfilepos;
|
|
{ get interface syms}
|
|
searchsym(sp,sym,srsymtable);
|
|
if not assigned(sym) then
|
|
begin
|
|
identifier_not_found(orgsp);
|
|
sym:=generrorsym;
|
|
end;
|
|
akttokenpos:=storepos;
|
|
{ qualifier is interface? }
|
|
if (sym.typ=typesym) and
|
|
(ttypesym(sym).restype.def.deftype=objectdef) then
|
|
i:=aclass.implementedinterfaces.searchintf(ttypesym(sym).restype.def)
|
|
else
|
|
i:=-1;
|
|
if (i=-1) then
|
|
Message(parser_e_interface_id_expected);
|
|
consume(_ID);
|
|
consume(_EQUAL);
|
|
if (token=_ID) then
|
|
aclass.implementedinterfaces.addmappings(i,sp,pattern);
|
|
consume(_ID);
|
|
result:=true;
|
|
exit;
|
|
end;
|
|
|
|
{ method ? }
|
|
if not assigned(aclass) and
|
|
(potype<>potype_operator) and
|
|
(symtablestack.symtablelevel=main_program_level) and
|
|
try_to_consume(_POINT) then
|
|
begin
|
|
{ search for object name }
|
|
storepos:=akttokenpos;
|
|
akttokenpos:=procstartfilepos;
|
|
searchsym(sp,sym,srsymtable);
|
|
if not assigned(sym) then
|
|
begin
|
|
identifier_not_found(orgsp);
|
|
sym:=generrorsym;
|
|
end;
|
|
akttokenpos:=storepos;
|
|
{ consume proc name }
|
|
sp:=pattern;
|
|
orgsp:=orgpattern;
|
|
procstartfilepos:=akttokenpos;
|
|
consume(_ID);
|
|
{ qualifier is class name ? }
|
|
if (sym.typ=typesym) and
|
|
(ttypesym(sym).restype.def.deftype=objectdef) then
|
|
begin
|
|
aclass:=tobjectdef(ttypesym(sym).restype.def);
|
|
aprocsym:=tprocsym(aclass.symtable.search(sp));
|
|
{ we solve this below }
|
|
if assigned(aprocsym) then
|
|
begin
|
|
if aprocsym.typ<>procsym then
|
|
begin
|
|
{ we use a different error message for tp7 so it looks more compatible }
|
|
if (m_fpc in aktmodeswitches) then
|
|
Message1(parser_e_overloaded_no_procedure,aprocsym.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(aktfilepos.line);
|
|
aprocsym:=nil;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
Message(parser_e_methode_id_expected);
|
|
{ recover by making it a normal procedure instead of method }
|
|
aclass:=nil;
|
|
end;
|
|
end
|
|
else
|
|
Message(parser_e_class_id_expected);
|
|
end
|
|
else
|
|
begin
|
|
{ check for constructor/destructor which is not allowed here }
|
|
if (not parse_only) and
|
|
(potype in [potype_constructor,potype_destructor]) then
|
|
Message(parser_e_constructors_always_objects);
|
|
|
|
repeat
|
|
searchagain:=false;
|
|
akttokenpos:=procstartfilepos;
|
|
srsym:=tsym(symtablestack.search(sp));
|
|
|
|
if not(parse_only) and
|
|
not assigned(srsym) and
|
|
(symtablestack.symtabletype=staticsymtable) and
|
|
assigned(symtablestack.next) and
|
|
(symtablestack.next.iscurrentunit) then
|
|
begin
|
|
{ The procedure we prepare for is in the implementation
|
|
part of the unit we compile. It is also possible that we
|
|
are compiling a program, which is also some kind of
|
|
implementaion part.
|
|
|
|
We need to find out if the procedure is global. If it is
|
|
global, it is in the global symtable.}
|
|
srsym:=tsym(symtablestack.next.search(sp));
|
|
end;
|
|
|
|
{ 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 }
|
|
if (srsym.typ=unitsym) then
|
|
begin
|
|
srsym.owner.rename(srsym.name,'hidden'+srsym.name);
|
|
searchagain:=true;
|
|
end
|
|
else
|
|
begin
|
|
{ we use a different error message for tp7 so it looks more compatible }
|
|
if (m_fpc in aktmodeswitches) then
|
|
Message1(parser_e_overloaded_no_procedure,srsym.realname)
|
|
else
|
|
tstoredsymtable(symtablestack).DuplicateSym(nil,srsym);
|
|
{ rename the name to an unique name to avoid an
|
|
error when inserting the symbol in the symtable }
|
|
orgsp:=orgsp+'$'+tostr(aktfilepos.line);
|
|
end;
|
|
end;
|
|
end;
|
|
until not searchagain;
|
|
end;
|
|
|
|
{ test again if assigned, it can be reset to recover }
|
|
if not assigned(aprocsym) then
|
|
begin
|
|
{ create a new procsym and set the real filepos }
|
|
akttokenpos:=procstartfilepos;
|
|
{ for operator we have only one procsym for each overloaded
|
|
operation }
|
|
if (potype=potype_operator) then
|
|
begin
|
|
Aprocsym:=Tprocsym(symtablestack.search(sp));
|
|
if Aprocsym=nil then
|
|
Aprocsym:=tprocsym.create('$'+sp);
|
|
end
|
|
else
|
|
aprocsym:=tprocsym.create(orgsp);
|
|
symtablestack.insert(aprocsym);
|
|
end;
|
|
|
|
{ to get the correct symtablelevel we must ignore objectsymtables }
|
|
st:=symtablestack;
|
|
while not(st.symtabletype in [staticsymtable,globalsymtable,localsymtable]) do
|
|
st:=st.next;
|
|
pd:=tprocdef.create(st.symtablelevel+1);
|
|
pd._class:=aclass;
|
|
pd.procsym:=aprocsym;
|
|
pd.proctypeoption:=potype;
|
|
{ methods need to be exported }
|
|
if assigned(aclass) and
|
|
(
|
|
(symtablestack.symtabletype=objectsymtable) or
|
|
(symtablestack.symtablelevel=main_program_level)
|
|
) then
|
|
include(pd.procoptions,po_global);
|
|
|
|
{ symbol options that need to be kept per procdef }
|
|
pd.fileinfo:=procstartfilepos;
|
|
pd.symoptions:=current_object_option;
|
|
|
|
{ parse parameters }
|
|
if token=_LKLAMMER then
|
|
parse_parameter_dec(pd);
|
|
|
|
result:=true;
|
|
end;
|
|
|
|
|
|
function parse_proc_dec(aclass:tobjectdef):tprocdef;
|
|
var
|
|
pd : tprocdef;
|
|
isclassmethod : boolean;
|
|
begin
|
|
pd:=nil;
|
|
isclassmethod:=false;
|
|
{ read class method }
|
|
if try_to_consume(_CLASS) then
|
|
begin
|
|
{ class method only allowed for procedures and functions }
|
|
if not(token in [_FUNCTION,_PROCEDURE]) then
|
|
Message(parser_e_procedure_or_function_expected);
|
|
|
|
if is_interface(aclass) then
|
|
Message(parser_e_no_static_method_in_interfaces)
|
|
else
|
|
isclassmethod:=true;
|
|
end;
|
|
case token of
|
|
_FUNCTION :
|
|
begin
|
|
consume(_FUNCTION);
|
|
if parse_proc_head(aclass,potype_function,pd) then
|
|
begin
|
|
{ pd=nil when it is a interface mapping }
|
|
if assigned(pd) then
|
|
begin
|
|
if try_to_consume(_COLON) then
|
|
begin
|
|
inc(testcurobject);
|
|
single_type(pd.rettype,false);
|
|
pd.test_if_fpu_result;
|
|
dec(testcurobject);
|
|
end
|
|
else
|
|
begin
|
|
if (
|
|
parse_only and
|
|
not(is_interface(pd._class))
|
|
) or
|
|
(m_repeat_forward in aktmodeswitches) then
|
|
begin
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
end;
|
|
if isclassmethod then
|
|
include(pd.procoptions,po_classmethod);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ recover }
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
end;
|
|
|
|
_PROCEDURE :
|
|
begin
|
|
consume(_PROCEDURE);
|
|
if parse_proc_head(aclass,potype_procedure,pd) then
|
|
begin
|
|
{ pd=nil when it is a interface mapping }
|
|
if assigned(pd) then
|
|
begin
|
|
pd.rettype:=voidtype;
|
|
if isclassmethod then
|
|
include(pd.procoptions,po_classmethod);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
_CONSTRUCTOR :
|
|
begin
|
|
consume(_CONSTRUCTOR);
|
|
parse_proc_head(aclass,potype_constructor,pd);
|
|
if assigned(pd) and
|
|
assigned(pd._class) then
|
|
begin
|
|
{ Set return type, class constructors return the
|
|
created instance, object constructors return boolean }
|
|
if is_class(pd._class) then
|
|
pd.rettype.setdef(pd._class)
|
|
else
|
|
pd.rettype:=booltype;
|
|
end;
|
|
end;
|
|
|
|
_DESTRUCTOR :
|
|
begin
|
|
consume(_DESTRUCTOR);
|
|
parse_proc_head(aclass,potype_destructor,pd);
|
|
if assigned(pd) then
|
|
pd.rettype:=voidtype;
|
|
end;
|
|
|
|
_OPERATOR :
|
|
begin
|
|
consume(_OPERATOR);
|
|
if (token in [first_overloaded..last_overloaded]) then
|
|
begin
|
|
optoken:=token;
|
|
end
|
|
else
|
|
begin
|
|
Message(parser_e_overload_operator_failed);
|
|
{ Use the dummy NOTOKEN that is also declared
|
|
for the overloaded_operator[] }
|
|
optoken:=NOTOKEN;
|
|
end;
|
|
consume(token);
|
|
parse_proc_head(aclass,potype_operator,pd);
|
|
if assigned(pd) then
|
|
begin
|
|
if pd.parast.symtablelevel>normal_function_level then
|
|
Message(parser_e_no_local_operator);
|
|
if token<>_ID then
|
|
begin
|
|
if not(m_result in aktmodeswitches) then
|
|
consume(_ID);
|
|
end
|
|
else
|
|
begin
|
|
pd.resultname:=orgpattern;
|
|
consume(_ID);
|
|
end;
|
|
if not try_to_consume(_COLON) then
|
|
begin
|
|
consume(_COLON);
|
|
pd.rettype:=generrortype;
|
|
consume_all_until(_SEMICOLON);
|
|
end
|
|
else
|
|
begin
|
|
single_type(pd.rettype,false);
|
|
pd.test_if_fpu_result;
|
|
if (optoken in [_EQUAL,_GT,_LT,_GTE,_LTE]) and
|
|
((pd.rettype.def.deftype<>orddef) or
|
|
(torddef(pd.rettype.def).typ<>bool8bit)) then
|
|
Message(parser_e_comparative_operator_return_boolean);
|
|
if (optoken=_ASSIGNMENT) and
|
|
equal_defs(pd.rettype.def,
|
|
tparavarsym(pd.parast.symindex.first).vartype.def) then
|
|
message(parser_e_no_such_assignment)
|
|
else if not isoperatoracceptable(pd,optoken) then
|
|
Message(parser_e_overload_impossible);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ recover }
|
|
try_to_consume(_ID);
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
end;
|
|
end;
|
|
{ support procedure proc stdcall export; }
|
|
if not(check_proc_directive(false)) then
|
|
consume(_SEMICOLON);
|
|
result:=pd;
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Procedure directive handlers
|
|
****************************************************************************}
|
|
|
|
procedure pd_far(pd:tabstractprocdef);
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'FAR');
|
|
end;
|
|
|
|
procedure pd_near(pd:tabstractprocdef);
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'NEAR');
|
|
end;
|
|
|
|
procedure pd_export(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(200304264);
|
|
if assigned(tprocdef(pd)._class) 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.deftype<>procdef then
|
|
internalerror(200304265);
|
|
tprocdef(pd).forwarddef:=true;
|
|
end;
|
|
|
|
|
|
procedure pd_alias(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>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.deftype<>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.deftype<>procdef then
|
|
internalerror(200304267);
|
|
tprocdef(pd).aliasnames.insert(target_info.Cprefix+pattern);
|
|
if token=_CCHAR then
|
|
consume(_CCHAR)
|
|
else
|
|
consume(_CSTRING);
|
|
{ we don't need anything else }
|
|
tprocdef(pd).forwarddef:=false;
|
|
end;
|
|
|
|
|
|
procedure pd_inline(pd:tabstractprocdef);
|
|
begin
|
|
{ Check if there are parameters that can't be inlined }
|
|
pd.parast.foreach_static(@check_inline_para,pd);
|
|
end;
|
|
|
|
procedure pd_internconst(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(200304268);
|
|
consume(_COLON);
|
|
tprocdef(pd).extnumber:=get_intconst;
|
|
end;
|
|
|
|
procedure pd_internproc(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(200304268);
|
|
consume(_COLON);
|
|
tprocdef(pd).extnumber:=get_intconst;
|
|
{ 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.deftype<>procdef then
|
|
internalerror(200304269);
|
|
if (po_virtualmethod in pd.procoptions) then
|
|
include(pd.procoptions,po_abstractmethod)
|
|
else
|
|
Message(parser_e_only_virtual_methods_abstract);
|
|
{ the method is defined }
|
|
tprocdef(pd).forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_virtual(pd:tabstractprocdef);
|
|
{$ifdef WITHDMT}
|
|
var
|
|
pt : tnode;
|
|
{$endif WITHDMT}
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(2003042610);
|
|
if (pd.proctypeoption=potype_constructor) and
|
|
is_object(tprocdef(pd)._class) then
|
|
Message(parser_e_constructor_cannot_be_not_virtual);
|
|
{$ifdef WITHDMT}
|
|
if is_object(tprocdef(pd)._class) and
|
|
(token<>_SEMICOLON) then
|
|
begin
|
|
{ any type of parameter is allowed here! }
|
|
pt:=comp_expr(true);
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(pd.procoptions,po_msgint);
|
|
pd.messageinf.i:=pt^.value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
disposetree(pt);
|
|
end;
|
|
{$endif WITHDMT}
|
|
end;
|
|
|
|
procedure pd_static(pd:tabstractprocdef);
|
|
begin
|
|
if (cs_static_keyword in aktmoduleswitches) then
|
|
begin
|
|
if pd.deftype=procdef then
|
|
include(tprocdef(pd).procsym.symoptions,sp_static);
|
|
include(pd.procoptions,po_staticmethod);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_override(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(2003042611);
|
|
if not(is_class_or_interface(tprocdef(pd)._class)) then
|
|
Message(parser_e_no_object_override);
|
|
end;
|
|
|
|
procedure pd_overload(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>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.deftype<>procdef then
|
|
internalerror(2003042613);
|
|
if not is_class(tprocdef(pd)._class) then
|
|
Message(parser_e_msg_only_for_classes);
|
|
{ check parameter type }
|
|
paracnt:=0;
|
|
pd.parast.foreach_static(@check_msg_para,@paracnt);
|
|
if paracnt<>1 then
|
|
Message(parser_e_ill_msg_param);
|
|
pt:=comp_expr(true);
|
|
if pt.nodetype=stringconstn then
|
|
begin
|
|
include(pd.procoptions,po_msgstr);
|
|
tprocdef(pd).messageinf.str:=strnew(tstringconstnode(pt).value_str);
|
|
end
|
|
else
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(pd.procoptions,po_msgint);
|
|
tprocdef(pd).messageinf.i:=tordconstnode(pt).value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
pt.free;
|
|
end;
|
|
|
|
|
|
procedure pd_reintroduce(pd:tabstractprocdef);
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(200401211);
|
|
if not(is_class_or_interface(tprocdef(pd)._class)) then
|
|
Message(parser_e_no_object_reintroduce);
|
|
end;
|
|
|
|
|
|
procedure pd_syscall(pd:tabstractprocdef);
|
|
{$ifdef powerpc}
|
|
var
|
|
vs : tparavarsym;
|
|
sym : tsym;
|
|
symtable : tsymtable;
|
|
{$endif powerpc}
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(2003042614);
|
|
tprocdef(pd).forwarddef:=false;
|
|
{$ifdef powerpc}
|
|
if target_info.system in [system_powerpc_morphos] then
|
|
begin
|
|
if idtoken=_LEGACY then
|
|
begin
|
|
consume(_LEGACY);
|
|
include(pd.procoptions,po_syscall_legacy);
|
|
end
|
|
else if idtoken=_SYSV then
|
|
begin
|
|
consume(_SYSV);
|
|
include(pd.procoptions,po_syscall_sysv);
|
|
end
|
|
else if idtoken=_BASESYSV then
|
|
begin
|
|
consume(_BASESYSV);
|
|
include(pd.procoptions,po_syscall_basesysv);
|
|
end
|
|
else if idtoken=_SYSVBASE then
|
|
begin
|
|
consume(_SYSVBASE);
|
|
include(pd.procoptions,po_syscall_sysvbase);
|
|
end
|
|
else if idtoken=_R12BASE then
|
|
begin
|
|
consume(_R12BASE);
|
|
include(pd.procoptions,po_syscall_r12base);
|
|
end
|
|
else
|
|
if syscall_convention='LEGACY' then
|
|
include(pd.procoptions,po_syscall_legacy)
|
|
else if syscall_convention='SYSV' then
|
|
include(pd.procoptions,po_syscall_sysv)
|
|
else if syscall_convention='BASESYSV' then
|
|
include(pd.procoptions,po_syscall_basesysv)
|
|
else if syscall_convention='SYSVBASE' then
|
|
include(pd.procoptions,po_syscall_sysvbase)
|
|
else if syscall_convention='R12BASE' then
|
|
include(pd.procoptions,po_syscall_r12base)
|
|
else
|
|
internalerror(2005010404);
|
|
|
|
if consume_sym(sym,symtable) then
|
|
begin
|
|
if (sym.typ=globalvarsym) and
|
|
(
|
|
(tabstractvarsym(sym).vartype.def.deftype=pointerdef) or
|
|
is_32bitint(tabstractvarsym(sym).vartype.def)
|
|
) then
|
|
begin
|
|
tprocdef(pd).libsym:=sym;
|
|
if po_syscall_legacy in tprocdef(pd).procoptions then
|
|
begin
|
|
vs:=tparavarsym.create('$syscalllib',paranr_syscall_legacy,vs_value,tabstractvarsym(sym).vartype,[vo_is_syscall_lib,vo_is_hidden_para,vo_has_explicit_paraloc]);
|
|
paramanager.parseparaloc(vs,'A6');
|
|
pd.parast.insert(vs);
|
|
end
|
|
else if po_syscall_sysv in tprocdef(pd).procoptions then
|
|
begin
|
|
{ Nothing to be done for sysv here for now, but this might change }
|
|
end
|
|
else if po_syscall_basesysv in tprocdef(pd).procoptions then
|
|
begin
|
|
vs:=tparavarsym.create('$syscalllib',paranr_syscall_basesysv,vs_value,tabstractvarsym(sym).vartype,[vo_is_syscall_lib,vo_is_hidden_para]);
|
|
pd.parast.insert(vs);
|
|
end
|
|
else if po_syscall_sysvbase in tprocdef(pd).procoptions then
|
|
begin
|
|
vs:=tparavarsym.create('$syscalllib',paranr_syscall_sysvbase,vs_value,tabstractvarsym(sym).vartype,[vo_is_syscall_lib,vo_is_hidden_para]);
|
|
pd.parast.insert(vs);
|
|
end
|
|
else if po_syscall_r12base in tprocdef(pd).procoptions then
|
|
begin
|
|
vs:=tparavarsym.create('$syscalllib',paranr_syscall_r12base,vs_value,tabstractvarsym(sym).vartype,[vo_is_syscall_lib,vo_is_hidden_para,vo_has_explicit_paraloc]);
|
|
paramanager.parseparaloc(vs,'R12');
|
|
pd.parast.insert(vs);
|
|
end
|
|
else
|
|
internalerror(2005010501);
|
|
end
|
|
else
|
|
Message(parser_e_32bitint_or_pointer_variable_expected);
|
|
end;
|
|
(paramanager as tppcparamanager).create_funcretloc_info(pd,calleeside);
|
|
(paramanager as tppcparamanager).create_funcretloc_info(pd,callerside);
|
|
end;
|
|
{$endif powerpc}
|
|
tprocdef(pd).extnumber:=get_intconst;
|
|
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)
|
|
}
|
|
begin
|
|
if pd.deftype<>procdef then
|
|
internalerror(2003042615);
|
|
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(token=_SEMICOLON) and not(idtoken=_NAME) then
|
|
begin
|
|
import_dll:=stringdup(get_stringconst);
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=stringdup(get_stringconst);
|
|
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);
|
|
import_nr:=get_intconst;
|
|
end;
|
|
{ default is to used the realname of the procedure }
|
|
if (import_nr=0) and not assigned(import_name) then
|
|
import_name:=stringdup(procsym.realname);
|
|
end
|
|
else
|
|
begin
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=stringdup(get_stringconst);
|
|
if import_name^='' then
|
|
message(parser_e_empty_import_name);
|
|
end;
|
|
end;
|
|
end;
|
|
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=37;
|
|
proc_direcdata:array[1..num_proc_directives] of proc_dir_rec=
|
|
(
|
|
(
|
|
idtok:_ABSTRACT;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf];
|
|
handler : @pd_abstract;
|
|
pocall : pocall_none;
|
|
pooption : [po_abstractmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_external,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];
|
|
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];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_DYNAMIC;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf];
|
|
handler : @pd_virtual;
|
|
pocall : pocall_none;
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_external,po_overridingmethod,po_inline]
|
|
),(
|
|
idtok:_EXPORT;
|
|
pd_flags : [pd_body,pd_interface,pd_implemen,pd_notobjintf];
|
|
handler : @pd_export;
|
|
pocall : pocall_none;
|
|
pooption : [po_exports,po_global];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_interrupt,po_inline]
|
|
),(
|
|
idtok:_EXTERNAL;
|
|
pd_flags : [pd_implemen,pd_interface,pd_notobject,pd_notobjintf];
|
|
handler : @pd_external;
|
|
pocall : pocall_none;
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_internproc,pocall_syscall];
|
|
mutexclpotype : [potype_constructor,potype_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];
|
|
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];
|
|
handler : nil;
|
|
pocall : pocall_far16;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_FORWARD;
|
|
pd_flags : [pd_implemen,pd_notobject,pd_notobjintf];
|
|
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 : @pd_inline;
|
|
pocall : pocall_none;
|
|
pooption : [po_inline];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_exports,po_external,po_interrupt,po_virtualmethod]
|
|
),(
|
|
idtok:_INTERNCONST;
|
|
pd_flags : [pd_interface,pd_body,pd_notobject,pd_notobjintf];
|
|
handler : @pd_internconst;
|
|
pocall : pocall_none;
|
|
pooption : [po_internconst];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_operator];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_INTERNPROC;
|
|
pd_flags : [pd_interface,pd_notobject,pd_notobjintf];
|
|
handler : @pd_internproc;
|
|
pocall : pocall_internproc;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
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];
|
|
handler : @pd_interrupt;
|
|
pocall : pocall_none;
|
|
pooption : [po_interrupt];
|
|
mutexclpocall : [pocall_internproc,pocall_cdecl,pocall_cppdecl,pocall_stdcall,
|
|
pocall_pascal,pocall_far16,pocall_oldfpccall];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_external,po_inline]
|
|
),(
|
|
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:_MESSAGE;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf];
|
|
handler : @pd_message;
|
|
pocall : pocall_none;
|
|
pooption : []; { can be po_msgstr or po_msgint }
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_interrupt,po_external,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];
|
|
handler : @pd_near;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
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];
|
|
handler : @pd_overload;
|
|
pocall : pocall_none;
|
|
pooption : [po_overload];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERRIDE;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf];
|
|
handler : @pd_override;
|
|
pocall : pocall_none;
|
|
pooption : [po_overridingmethod,po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_external,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];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_PUBLIC;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_notobject,pd_notobjintf];
|
|
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];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_REINTRODUCE;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf];
|
|
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];
|
|
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];
|
|
{ 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_object,pd_notobjintf];
|
|
handler : @pd_static;
|
|
pocall : pocall_none;
|
|
pooption : [po_staticmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_interrupt,po_exports,po_inline]
|
|
),(
|
|
idtok:_STDCALL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_stdcall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SYSCALL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_notobject,pd_notobjintf];
|
|
handler : @pd_syscall;
|
|
pocall : pocall_syscall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_assembler,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_VIRTUAL;
|
|
pd_flags : [pd_interface,pd_object,pd_notobjintf];
|
|
handler : @pd_virtual;
|
|
pocall : pocall_none;
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_interrupt,po_exports,po_overridingmethod,po_inline]
|
|
),(
|
|
idtok:_CPPDECL;
|
|
pd_flags : [pd_interface,pd_implemen,pd_body,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_cppdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_assembler,po_external,po_virtualmethod]
|
|
),(
|
|
idtok:_VARARGS;
|
|
pd_flags : [pd_interface,pd_implemen,pd_procvar];
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_varargs];
|
|
mutexclpocall : [pocall_internproc,pocall_stdcall,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 : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_compilerproc];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_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.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 : stringid;
|
|
begin
|
|
parse_proc_direc:=false;
|
|
name:=tokeninfo^[idtoken].str;
|
|
found:=false;
|
|
|
|
{ Hint directive? Then exit immediatly }
|
|
if (m_hintdirective in aktmodeswitches) then
|
|
begin
|
|
case idtoken of
|
|
_LIBRARY,
|
|
_PLATFORM,
|
|
_UNIMPLEMENTED,
|
|
_DEPRECATED :
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
{ C directive is MAC only, because it breaks too much existing code
|
|
on other platforms (PFV) }
|
|
if (idtoken=_C) and
|
|
not(m_mac in aktmodeswitches) 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])=[]) and
|
|
not(idtoken=_PROPERTY) 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;
|
|
|
|
{ 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.symtabletype=objectsymtable) 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.deftype=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)._class) then
|
|
exit;
|
|
|
|
{ check if method and directive not for interface }
|
|
if (pd_notobjintf in proc_direcdata[p].pd_flags) and
|
|
is_interface(tprocdef(pd)._class) then
|
|
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 (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;
|
|
begin
|
|
result:='';
|
|
if not(po_external in pd.procoptions) then
|
|
internalerror(200412151);
|
|
{ import by number? }
|
|
if pd.import_nr<>0 then
|
|
begin
|
|
{ Nothing to do }
|
|
end
|
|
else
|
|
{ external name specified }
|
|
if assigned(pd.import_name) then
|
|
begin
|
|
{ Win32 imports need to use the normal name since to functions
|
|
can refer to the same DLL function. This is also needed for compatability
|
|
with Delphi and TP7 }
|
|
if not(
|
|
assigned(pd.import_dll) and
|
|
(target_info.system in [system_i386_win32,system_i386_wdosx,
|
|
system_i386_emx,system_i386_os2,system_arm_wince,system_i386_wince])
|
|
) then
|
|
begin
|
|
if not(pd.proccalloption in [pocall_cdecl,pocall_cppdecl]) then
|
|
result:=pd.import_name^
|
|
else
|
|
result:=target_info.Cprefix+pd.import_name^;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ Default names when importing variables }
|
|
case pd.proccalloption of
|
|
pocall_cdecl :
|
|
begin
|
|
if assigned(pd._class) then
|
|
result:=target_info.Cprefix+pd._class.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'" }
|
|
if (m_mac in aktmodeswitches) then
|
|
result:=tprocdef(pd).procsym.realname;
|
|
end;
|
|
end;
|
|
end;
|
|
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
|
|
pd.setmangledname(s);
|
|
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 :
|
|
begin
|
|
if assigned(pd._class) then
|
|
pd.aliasnames.insert(target_info.Cprefix+pd._class.objrealname^+'_'+pd.procsym.realname)
|
|
else
|
|
pd.aliasnames.insert(target_info.Cprefix+pd.procsym.realname);
|
|
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);
|
|
begin
|
|
{ set the default calling convention if none provided }
|
|
if not(po_hascallingconvention in pd.procoptions) then
|
|
pd.proccalloption:=aktdefproccall
|
|
else
|
|
begin
|
|
if pd.proccalloption=pocall_none then
|
|
internalerror(200309081);
|
|
end;
|
|
|
|
{ handle proccall specific settings }
|
|
case pd.proccalloption of
|
|
pocall_cdecl,
|
|
pocall_cppdecl :
|
|
begin
|
|
{ check C cdecl para types }
|
|
pd.parast.foreach_static(@check_c_para,nil);
|
|
end;
|
|
pocall_far16 :
|
|
begin
|
|
{ Temporary stub, must be rewritten to support OS/2 far16 }
|
|
Message1(parser_w_proc_directive_ignored,'FAR16');
|
|
end;
|
|
end;
|
|
|
|
if (po_inline in pd.procoptions) then
|
|
begin
|
|
if not(cs_support_inline in aktmoduleswitches) then
|
|
begin
|
|
Message(parser_e_proc_inline_not_supported);
|
|
exclude(pd.procoptions,po_inline);
|
|
end;
|
|
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.deftype=procvardef)) and
|
|
not(pd.proccalloption in [pocall_cdecl,pocall_cppdecl]) 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.deftype=procvardef)) or
|
|
not(pd.proccalloption in [pocall_cdecl,pocall_cppdecl]) then
|
|
Message(parser_e_varargs_need_cdecl_and_external);
|
|
end;
|
|
end;
|
|
|
|
{ insert hidden high parameters }
|
|
pd.parast.foreach_static(@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.foreach_static(@set_addr_param_regable,pd);
|
|
|
|
{ insert parentfp parameter if required }
|
|
insert_parentfp_para(pd);
|
|
|
|
{ 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
|
|
res : boolean;
|
|
begin
|
|
if (m_mac in aktmodeswitches) and (cs_externally_visible in aktlocalswitches) then
|
|
begin
|
|
tprocdef(pd).aliasnames.insert(tprocdef(pd).procsym.realname);
|
|
include(pd.procoptions,po_public);
|
|
include(pd.procoptions,po_has_public_name);
|
|
include(pd.procoptions,po_global);
|
|
end;
|
|
|
|
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 _EQUAL is found,
|
|
because a constant/default value follows }
|
|
if res then
|
|
begin
|
|
if (block_type in [bt_const,bt_type]) and
|
|
(token=_EQUAL) then
|
|
break;
|
|
{ support procedure proc;stdcall export; }
|
|
if not(check_proc_directive((pd.deftype=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,_EQUAL]) then
|
|
break
|
|
else
|
|
consume(_SEMICOLON);
|
|
end;
|
|
end
|
|
else
|
|
break;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure parse_var_proc_directives(sym:tsym);
|
|
var
|
|
pdflags : tpdflags;
|
|
pd : tabstractprocdef;
|
|
begin
|
|
pdflags:=[pd_procvar];
|
|
pd:=nil;
|
|
case sym.typ of
|
|
fieldvarsym,
|
|
globalvarsym,
|
|
localvarsym,
|
|
paravarsym :
|
|
pd:=tabstractprocdef(tabstractvarsym(sym).vartype.def);
|
|
typedconstsym :
|
|
pd:=tabstractprocdef(ttypedconstsym(sym).typedconsttype.def);
|
|
typesym :
|
|
pd:=tabstractprocdef(ttypesym(sym).restype.def);
|
|
else
|
|
internalerror(2003042617);
|
|
end;
|
|
if pd.deftype<>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;
|
|
|
|
|
|
function proc_add_definition(var pd:tprocdef):boolean;
|
|
{
|
|
Add definition aprocdef to the overloaded definitions of aprocsym. If a
|
|
forwarddef is found and reused it returns true
|
|
}
|
|
var
|
|
hd : tprocdef;
|
|
ad,fd : tsym;
|
|
s1,s2 : stringid;
|
|
i : cardinal;
|
|
forwardfound : boolean;
|
|
po_comp : tprocoptions;
|
|
aprocsym : tprocsym;
|
|
begin
|
|
forwardfound:=false;
|
|
aprocsym:=tprocsym(pd.procsym);
|
|
|
|
{ check overloaded functions if the same function already exists }
|
|
for i:=1 to aprocsym.procdef_count do
|
|
begin
|
|
hd:=aprocsym.procdef[i];
|
|
|
|
{ Skip overloaded definitions that are declared in other
|
|
units }
|
|
if hd.procsym<>aprocsym 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 aktmodeswitches) and
|
|
not(pd.forwarddef) and
|
|
(pd.maxparacount=0) and
|
|
not(po_overload in hd.procoptions)
|
|
) or
|
|
{ check arguments }
|
|
(
|
|
(compare_paras(pd.paras,hd.paras,cp_none,[cpo_comparedefaultvalue])>=te_equal) and
|
|
{ for operators equal_paras is not enough !! }
|
|
((pd.proctypeoption<>potype_operator) or (optoken<>_ASSIGNMENT) or
|
|
{ be careful here, equal_defs doesn't take care of unique }
|
|
(hd.rettype.def=pd.rettype.def) or
|
|
(equal_defs(hd.rettype.def,pd.rettype.def) and
|
|
not(df_unique in hd.rettype.def.defoptions) and not(df_unique in pd.rettype.def.defoptions)
|
|
)
|
|
)
|
|
) 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 hd.forwarddef then
|
|
begin
|
|
forwardfound:=true;
|
|
|
|
{ Check if the procedure type and return type are correct,
|
|
also the parameters must match also with the type }
|
|
if (hd.proctypeoption<>pd.proctypeoption) or
|
|
(
|
|
(m_repeat_forward in aktmodeswitches) and
|
|
(not((pd.maxparacount=0) or
|
|
(compare_paras(pd.paras,hd.paras,cp_all,[cpo_comparedefaultvalue])>=te_equal)))
|
|
) or
|
|
(
|
|
((m_repeat_forward in aktmodeswitches) or
|
|
not(is_void(pd.rettype.def))) and
|
|
(not equal_defs(hd.rettype.def,pd.rettype.def))) then
|
|
begin
|
|
MessagePos1(pd.fileinfo,parser_e_header_dont_match_forward,
|
|
pd.fullprocname(false));
|
|
aprocsym.write_parameter_lists(pd);
|
|
break;
|
|
end;
|
|
|
|
{ Check if both are declared forward }
|
|
if hd.forwarddef and pd.forwarddef then
|
|
begin
|
|
MessagePos1(pd.fileinfo,parser_e_function_already_declared_public_forward,
|
|
pd.fullprocname(false));
|
|
end;
|
|
|
|
{ internconst or internproc only need to be defined once }
|
|
if (hd.proccalloption=pocall_internproc) then
|
|
pd.proccalloption:=hd.proccalloption
|
|
else
|
|
if (pd.proccalloption=pocall_internproc) then
|
|
hd.proccalloption:=pd.proccalloption;
|
|
|
|
{ Check calling convention }
|
|
if (hd.proccalloption<>pd.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 aktmodeswitches) then
|
|
begin
|
|
if not(po_hascallingconvention in pd.procoptions) then
|
|
pd.proccalloption:=hd.proccalloption
|
|
else
|
|
if not(po_hascallingconvention in hd.procoptions) then
|
|
hd.proccalloption:=pd.proccalloption
|
|
else
|
|
begin
|
|
MessagePos(pd.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
aprocsym.write_parameter_lists(pd);
|
|
{ restore interface settings }
|
|
pd.proccalloption:=hd.proccalloption;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
MessagePos(pd.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
aprocsym.write_parameter_lists(pd);
|
|
{ restore interface settings }
|
|
pd.proccalloption:=hd.proccalloption;
|
|
end;
|
|
end;
|
|
|
|
{ Check procedure options, Delphi requires that class is
|
|
repeated in the implementation for class methods }
|
|
if (m_fpc in aktmodeswitches) then
|
|
po_comp:=[po_varargs,po_methodpointer,po_interrupt]
|
|
else
|
|
po_comp:=[po_classmethod,po_methodpointer];
|
|
|
|
if ((po_comp * hd.procoptions)<>(po_comp * pd.procoptions)) then
|
|
begin
|
|
MessagePos1(pd.fileinfo,parser_e_header_dont_match_forward,
|
|
pd.fullprocname(false));
|
|
aprocsym.write_parameter_lists(pd);
|
|
{ This error is non-fatal, we can recover }
|
|
end;
|
|
|
|
{ Forward declaration is external? }
|
|
if (po_external in hd.procoptions) then
|
|
MessagePos(pd.fileinfo,parser_e_proc_already_external);
|
|
|
|
{ Check parameters }
|
|
if (m_repeat_forward in aktmodeswitches) or
|
|
(pd.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 }
|
|
ad:=tsym(hd.parast.symindex.first);
|
|
fd:=tsym(pd.parast.symindex.first);
|
|
repeat
|
|
{ skip default parameter constsyms }
|
|
while assigned(ad) and (ad.typ<>paravarsym) do
|
|
ad:=tsym(ad.indexnext);
|
|
while assigned(fd) and (fd.typ<>paravarsym) do
|
|
fd:=tsym(fd.indexnext);
|
|
{ stop when one of the two lists is at the end }
|
|
if not assigned(ad) or not assigned(fd) then
|
|
break;
|
|
{ retrieve names, remove reg for register parameters }
|
|
s1:=ad.name;
|
|
s2:=fd.name;
|
|
{ compare names }
|
|
if (s1<>s2) then
|
|
begin
|
|
MessagePos3(pd.fileinfo,parser_e_header_different_var_names,
|
|
aprocsym.name,s1,s2);
|
|
break;
|
|
end;
|
|
ad:=tsym(ad.indexnext);
|
|
fd:=tsym(fd.indexnext);
|
|
until false;
|
|
if assigned(ad) xor assigned(fd) then
|
|
internalerror(200204178);
|
|
end;
|
|
|
|
{ Everything is checked, now we can update the forward declaration
|
|
with the new data from the implementation }
|
|
hd.forwarddef:=pd.forwarddef;
|
|
hd.hasforward:=true;
|
|
hd.procoptions:=hd.procoptions+pd.procoptions;
|
|
if hd.extnumber=65535 then
|
|
hd.extnumber:=pd.extnumber;
|
|
while not pd.aliasnames.empty do
|
|
hd.aliasnames.insert(pd.aliasnames.getfirst);
|
|
{ update fileinfo so position references the implementation,
|
|
also update funcretsym if it is already generated }
|
|
hd.fileinfo:=pd.fileinfo;
|
|
if assigned(hd.funcretsym) then
|
|
hd.funcretsym.fileinfo:=pd.fileinfo;
|
|
{ import names }
|
|
if assigned(pd.import_dll) then
|
|
begin
|
|
stringdispose(hd.import_dll);
|
|
hd.import_dll:=stringdup(pd.import_dll^);
|
|
end;
|
|
if assigned(pd.import_name) then
|
|
begin
|
|
stringdispose(hd.import_name);
|
|
hd.import_name:=stringdup(pd.import_name^);
|
|
end;
|
|
hd.import_nr:=pd.import_nr;
|
|
{ for compilerproc defines we need to rename and update the
|
|
symbolname to lowercase }
|
|
if (po_compilerproc in pd.procoptions) then
|
|
begin
|
|
{ rename to lowercase so users can't access it }
|
|
aprocsym.owner.rename(aprocsym.name,lower(aprocsym.name));
|
|
{ also update the realname that is stored in the ppu }
|
|
stringdispose(aprocsym._realname);
|
|
aprocsym._realname:=stringdup('$'+aprocsym.name);
|
|
{ the mangeled name is already changed by the pd_compilerproc }
|
|
{ handler. It must be done immediately because if we have a }
|
|
{ call to a compilerproc before it's implementation is }
|
|
{ encountered, it must already use the new mangled name (JM) }
|
|
end;
|
|
|
|
{ the procdef will be released by the symtable, we release
|
|
at least the parast }
|
|
pd.releasemem;
|
|
pd:=hd;
|
|
end
|
|
else
|
|
begin
|
|
{ abstract methods aren't forward defined, but this }
|
|
{ needs another error message }
|
|
if (po_abstractmethod in hd.procoptions) then
|
|
MessagePos(pd.fileinfo,parser_e_abstract_no_definition)
|
|
else
|
|
begin
|
|
MessagePos(pd.fileinfo,parser_e_overloaded_have_same_parameters);
|
|
aprocsym.write_parameter_lists(pd);
|
|
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 aktmodeswitches) then
|
|
begin
|
|
{ overload directive turns on overloading }
|
|
if ((po_overload in pd.procoptions) or
|
|
(po_overload in hd.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(hd.hasforward or
|
|
assigned(pd._class) or
|
|
(pd.forwarddef<>hd.forwarddef) or
|
|
((po_overload in pd.procoptions) and
|
|
(po_overload in hd.procoptions))) then
|
|
begin
|
|
MessagePos1(pd.fileinfo,parser_e_no_overload_for_all_procs,aprocsym.realname);
|
|
break;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if not(hd.forwarddef) then
|
|
begin
|
|
MessagePos(pd.fileinfo,parser_e_procedure_overloading_is_off);
|
|
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
|
|
aprocsym.addprocdef(pd);
|
|
|
|
proc_add_definition:=forwardfound;
|
|
end;
|
|
|
|
end.
|