mirror of
https://gitlab.com/freepascal.org/fpc/source.git
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f4b818fc1d
and aliases for result and function name are added using absolutesym * vs_hidden parameter for funcret passed in parameter * vs_hidden fixes * writenode changed to printnode and released from extdebug * -vp option added to generate a tree.log with the nodetree * nicer printnode for statements, callnode
2473 lines
88 KiB
ObjectPascal
2473 lines
88 KiB
ObjectPascal
{
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$Id$
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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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const
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pd_global = $1; { directive must be global }
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pd_body = $2; { directive needs a body }
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pd_implemen = $4; { directive can be used implementation section }
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pd_interface = $8; { directive can be used interface section }
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pd_object = $10; { directive can be used object declaration }
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pd_procvar = $20; { directive can be used procvar declaration }
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pd_notobject = $40; { directive can not be used object declaration }
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pd_notobjintf= $80; { directive can not be used interface declaration }
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function is_proc_directive(tok:ttoken):boolean;
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procedure insert_funcret_para(pd:tabstractprocdef);
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procedure insert_funcret_local(pd:tprocdef);
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procedure insert_hidden_para(pd:tabstractprocdef);
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procedure check_self_para(aktprocdef:tabstractprocdef);
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procedure parameter_dec(aktprocdef:tabstractprocdef);
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procedure parse_proc_directives(var pdflags:word);
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procedure handle_calling_convention(sym:tprocsym;def:tabstractprocdef);
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procedure calc_parasymtable_addresses(pd:tprocdef);
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procedure parse_proc_head(options:tproctypeoption);
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procedure parse_proc_dec;
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procedure parse_var_proc_directives(var sym : tsym);
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procedure parse_object_proc_directives(var sym : tprocsym);
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function proc_add_definition(aprocsym:tprocsym;var aprocdef : tprocdef) : boolean;
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implementation
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uses
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{$ifdef delphi}
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sysutils,
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{$else delphi}
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strings,
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{$endif delphi}
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{ common }
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cutils,cclasses,
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{ global }
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globtype,globals,verbose,
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systems,cpubase,
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{ aasm }
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aasmbase,aasmtai,aasmcpu,
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{ symtable }
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symbase,symtable,defutil,defcmp,paramgr,
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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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fmodule,scanner,
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pbase,pexpr,ptype,pdecl,
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{ linking }
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import,gendef,
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{ codegen }
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cpuinfo,cgbase
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;
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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 : tvarsym;
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begin
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if not is_void(pd.rettype.def) and
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not paramanager.ret_in_reg(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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{ Generate result variable accessing function result }
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vs:=tvarsym.create('$result',pd.rettype);
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include(vs.varoptions,vo_is_funcret);
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{ Store the this symbol as fucnretsym for procedures }
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if pd.deftype=procdef then
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tprocdef(pd).funcretsym:=vs;
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{ Handle like a var parameter }
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vs.varspez:=vs_var;
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pd.parast.insert(vs);
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{ Also insert a hidden parameter as first }
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pd.insertpara(vs.vartype,vs,vs_hidden,nil);
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akttokenpos:=storepos;
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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 : tvarsym;
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begin
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if not is_void(pd.rettype.def) then
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begin
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{ if the current is a function aktprocsym is non nil }
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{ and there is a local symtable set }
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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 paramanager.ret_in_reg(pd.rettype.def,pd.proccalloption) then
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begin
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vs:=tvarsym.create('$result',pd.rettype);
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include(vs.varoptions,vo_is_funcret);
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pd.localst.insert(vs);
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pd.localst.insertvardata(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:=aktprocdef.procsym.name;
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vs:=tabsolutesym.create_ref(pd.resultname,pd.rettype,tstoredsym(pd.funcretsym));
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include(vs.varoptions,vo_is_funcret);
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pd.localst.insert(vs);
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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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vs:=tabsolutesym.create_ref('RESULT',pd.rettype,tstoredsym(pd.funcretsym));
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include(vs.varoptions,vo_is_funcret);
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pd.localst.insert(vs);
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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(pd:tabstractprocdef);
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var
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currpara : tparaitem;
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hvs : tvarsym;
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begin
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{ walk from right to left, so we can insert the
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high parameters after the current parameter }
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currpara:=tparaitem(pd.para.last);
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while assigned(currpara) do
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begin
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{ needs high parameter ? }
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if paramanager.push_high_param(currpara.paratype.def,pd.proccalloption) then
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begin
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if assigned(currpara.parasym) then
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begin
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hvs:=tvarsym.create('$high'+tvarsym(currpara.parasym).name,s32bittype);
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hvs.varspez:=vs_const;
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include(hvs.varoptions,vo_is_high_value);
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tvarsym(currpara.parasym).owner.insert(hvs);
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tvarsym(currpara.parasym).highvarsym:=hvs;
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end
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else
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hvs:=nil;
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pd.concatpara(currpara,s32bittype,hvs,vs_hidden,nil);
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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(currpara.paratype.def,pocall_fpccall) then
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begin
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if is_open_string(currpara.paratype.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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currpara:=tparaitem(currpara.previous);
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end;
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end;
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procedure checkvaluepara(p:tnamedindexitem;arg:pointer);
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begin
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if tsym(p).typ<>varsym then
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exit;
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with tvarsym(p) do
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begin
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{ do we need a local copy? Then rename the varsym, do this after the
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insert so the dup id checking is done correctly.
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array of const and open array do not need this, the local copy routine
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will patch the pushed value to point to the local copy }
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if (varspez=vs_value) and
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paramanager.push_addr_param(vartype.def,aktprocdef.proccalloption) and
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not(is_array_of_const(vartype.def) or
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is_open_array(vartype.def)) then
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aktprocdef.parast.symsearch.rename(name,'val'+name);
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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<>varsym) then
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exit;
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with tvarsym(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=varsym) and
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not(vo_is_high_value in tvarsym(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_self_para(aktprocdef:tabstractprocdef);
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var
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hpara : tparaitem;
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begin
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hpara:=aktprocdef.selfpara;
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if assigned(hpara) and
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(
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((aktprocdef.deftype=procvardef) and
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(po_methodpointer in aktprocdef.procoptions)) or
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((aktprocdef.deftype=procdef) and
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assigned(tprocdef(aktprocdef)._class))
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) then
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begin
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include(aktprocdef.procoptions,po_containsself);
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if hpara.paratyp <> vs_value then
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CGMessage(parser_e_self_call_by_value);
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if (aktprocdef.deftype=procdef) then
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begin
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inc(procinfo.selfpointer_offset,tvarsym(hpara.parasym).address);
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if compare_defs(hpara.paratype.def,tprocdef(aktprocdef)._class,nothingn)=te_incompatible then
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CGMessage2(type_e_incompatible_types,hpara.paratype.def.typename,tprocdef(aktprocdef)._class.typename);
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end;
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end;
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end;
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procedure parameter_dec(aktprocdef:tabstractprocdef);
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{
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handle_procvar needs the same changes
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}
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var
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is_procvar : boolean;
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sc : tsinglelist;
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tt : ttype;
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arrayelementtype : ttype;
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vs : tvarsym;
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srsym : tsym;
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hs1 : string;
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varspez : Tvarspez;
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hpara : tparaitem;
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tdefaultvalue : 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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begin
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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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is_procvar:=(aktprocdef.deftype=procvardef);
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currparast:=tparasymtable(aktprocdef.parast);
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{ reset }
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sc:=tsinglelist.create;
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defaultrequired:=false;
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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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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 (idtoken=_OUT) and (m_out in aktmodeswitches) then
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begin
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consume(_OUT);
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varspez:=vs_out
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end
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else
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varspez:=vs_value;
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tdefaultvalue:=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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vs:=tvarsym.create(orgpattern,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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{ 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,s32bittype));
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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(1234124);
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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
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{ define field type }
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single_type(arrayelementtype,hs1,false);
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tarraydef(tt.def).setelementtype(arrayelementtype);
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end;
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end
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else
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begin
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{ open string ? }
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if (varspez=vs_var) and
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(
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(
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((token=_STRING) or (idtoken=_SHORTSTRING)) and
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(cs_openstring in aktmoduleswitches) and
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not(cs_ansistrings in aktlocalswitches)
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) or
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(idtoken=_OPENSTRING)) then
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begin
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consume(token);
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tt:=openshortstringtype;
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hs1:='openstring';
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end
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else
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begin
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{ everything else }
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single_type(tt,hs1,false);
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end;
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{ default parameter }
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if (m_default_para in aktmodeswitches) then
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begin
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if try_to_consume(_EQUAL) then
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begin
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vs:=tvarsym(sc.first);
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if assigned(vs.listnext) then
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Message(parser_e_default_value_only_one_para);
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{ prefix 'def' to the parameter name }
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tdefaultvalue:=ReadConstant('$def'+vs.name,vs.fileinfo);
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if assigned(tdefaultvalue) then
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tprocdef(aktprocdef).parast.insert(tdefaultvalue);
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defaultrequired:=true;
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end
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else
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begin
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if defaultrequired then
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Message1(parser_e_default_value_expected_for_para,vs.name);
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end;
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end;
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end;
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end
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else
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begin
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{$ifndef UseNiceNames}
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hs1:='$$$';
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{$else UseNiceNames}
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hs1:='var';
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{$endif UseNiceNames}
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tt:=cformaltype;
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end;
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vs:=tvarsym(sc.first);
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while assigned(vs) do
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begin
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{ update varsym }
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vs.vartype:=tt;
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vs.varspez:=varspez;
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{ For proc vars we only need the definitions }
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if not is_procvar then
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begin
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if (varspez in [vs_var,vs_const,vs_out]) and
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paramanager.push_addr_param(tt.def,aktprocdef.proccalloption) then
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include(vs.varoptions,vo_regable);
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end;
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hpara:=aktprocdef.concatpara(nil,tt,vs,varspez,tdefaultvalue);
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{ save position of self parameter }
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if vs.name='SELF' then
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aktprocdef.selfpara:=hpara;
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vs:=tvarsym(vs.listnext);
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end;
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until not try_to_consume(_SEMICOLON);
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{ remove parasymtable from stack }
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sc.free;
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{ check for a self parameter, only for normal procedures. For
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procvars we need to wait until the 'of object' is parsed }
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if not is_procvar then
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check_self_para(aktprocdef);
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{ reset object options }
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dec(testcurobject);
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current_object_option:=old_object_option;
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consume(_RKLAMMER);
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end;
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|
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procedure parse_proc_head(options:tproctypeoption);
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var
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orgsp,sp:stringid;
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paramoffset:longint;
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sym:tsym;
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st : tsymtable;
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srsymtable : tsymtable;
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storepos,procstartfilepos : tfileposinfo;
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searchagain : boolean;
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i: longint;
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begin
|
|
{ Save the position where this procedure really starts }
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procstartfilepos:=akttokenpos;
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aktprocdef:=nil;
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|
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if (options=potype_operator) then
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begin
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sp:=overloaded_names[optoken];
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orgsp:=sp;
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end
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else
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begin
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sp:=pattern;
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orgsp:=orgpattern;
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consume(_ID);
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end;
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|
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{ examine interface map: function/procedure iname.functionname=locfuncname }
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if parse_only and
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assigned(procinfo._class) and
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assigned(procinfo._class.implementedinterfaces) and
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|
(procinfo._class.implementedinterfaces.count>0) and
|
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try_to_consume(_POINT) then
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begin
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storepos:=akttokenpos;
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akttokenpos:=procstartfilepos;
|
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{ get interface syms}
|
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searchsym(sp,sym,srsymtable);
|
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if not assigned(sym) then
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begin
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identifier_not_found(orgsp);
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sym:=generrorsym;
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end;
|
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akttokenpos:=storepos;
|
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{ load proc name }
|
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if sym.typ=typesym then
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i:=procinfo._class.implementedinterfaces.searchintf(ttypesym(sym).restype.def);
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|
{ qualifier is interface name? }
|
|
if (sym.typ<>typesym) or (ttypesym(sym).restype.def.deftype<>objectdef) or
|
|
(i=-1) then
|
|
begin
|
|
Message(parser_e_interface_id_expected);
|
|
aktprocsym:=nil;
|
|
end
|
|
else
|
|
begin
|
|
aktprocsym:=tprocsym(procinfo._class.implementedinterfaces.interfaces(i).symtable.search(sp));
|
|
{ the method can be declared after the mapping FK
|
|
if not(assigned(aktprocsym)) then
|
|
Message(parser_e_methode_id_expected);
|
|
}
|
|
end;
|
|
consume(_ID);
|
|
consume(_EQUAL);
|
|
if (token=_ID) { and assigned(aktprocsym) } then
|
|
procinfo._class.implementedinterfaces.addmappings(i,sp,pattern);
|
|
consume(_ID);
|
|
exit;
|
|
end;
|
|
|
|
{ method ? }
|
|
if not(parse_only) and
|
|
(lexlevel=normal_function_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) or
|
|
(ttypesym(sym).restype.def.deftype<>objectdef) then
|
|
begin
|
|
Message(parser_e_class_id_expected);
|
|
aktprocsym:=nil;
|
|
aktprocdef:=nil;
|
|
end
|
|
else
|
|
begin
|
|
{ used to allow private syms to be seen }
|
|
aktobjectdef:=tobjectdef(ttypesym(sym).restype.def);
|
|
procinfo._class:=tobjectdef(ttypesym(sym).restype.def);
|
|
aktprocsym:=tprocsym(procinfo._class.symtable.search(sp));
|
|
{The procedure has been found. So it is
|
|
a global one. Set the flags to mark this.}
|
|
procinfo.flags:=procinfo.flags or pi_is_global;
|
|
aktobjectdef:=nil;
|
|
{ we solve this below }
|
|
if assigned(aktprocsym) then
|
|
begin
|
|
if aktprocsym.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,aktprocsym.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+'$'+tostr(aktfilepos.line);
|
|
aktprocsym:=nil;
|
|
end;
|
|
end
|
|
else
|
|
Message(parser_e_methode_id_expected);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ check for constructor/destructor which is not allowed here }
|
|
if (not parse_only) and
|
|
(options in [potype_constructor,potype_destructor]) then
|
|
Message(parser_e_constructors_always_objects);
|
|
|
|
repeat
|
|
searchagain:=false;
|
|
akttokenpos:=procstartfilepos;
|
|
aktprocsym:=tprocsym(symtablestack.search(sp));
|
|
|
|
if not(parse_only) and
|
|
not assigned(aktprocsym) and
|
|
(symtablestack.symtabletype=staticsymtable) and
|
|
assigned(symtablestack.next) and
|
|
(symtablestack.next.unitid=0) then
|
|
begin
|
|
{The procedure we prepare for is in the implementation
|
|
part of the unit we compile. It is also possible that we
|
|
are compiling a program, which is also some kind of
|
|
implementaion part.
|
|
|
|
We need to find out if the procedure is global. If it is
|
|
global, it is in the global symtable.}
|
|
aktprocsym:=tprocsym(symtablestack.next.search(sp));
|
|
end;
|
|
|
|
{ Check if overloaded is a procsym }
|
|
if assigned(aktprocsym) and
|
|
(aktprocsym.typ<>procsym) then
|
|
begin
|
|
{ when the other symbol is a unit symbol then hide the unit
|
|
symbol. Only in tp mode because it's bad programming }
|
|
if (m_duplicate_names in aktmodeswitches) and
|
|
(aktprocsym.typ=unitsym) then
|
|
begin
|
|
aktprocsym.owner.rename(aktprocsym.name,'hidden'+aktprocsym.name);
|
|
searchagain:=true;
|
|
end
|
|
else
|
|
begin
|
|
{ we use a different error message for tp7 so it looks more compatible }
|
|
if (m_fpc in aktmodeswitches) then
|
|
Message1(parser_e_overloaded_no_procedure,aktprocsym.realname)
|
|
else
|
|
DuplicateSym(aktprocsym);
|
|
{ rename the name to an unique name to avoid an
|
|
error when inserting the symbol in the symtable }
|
|
orgsp:=orgsp+'$'+tostr(aktfilepos.line);
|
|
{ generate a new aktprocsym }
|
|
aktprocsym:=nil;
|
|
end;
|
|
end;
|
|
until not searchagain;
|
|
end;
|
|
|
|
{ test again if assigned, it can be reset to recover }
|
|
if not assigned(aktprocsym) 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 (options=potype_operator) then
|
|
begin
|
|
{ is the current overload sym already in the current unit }
|
|
if assigned(overloaded_operators[optoken]) and
|
|
(overloaded_operators[optoken].owner=symtablestack) then
|
|
aktprocsym:=overloaded_operators[optoken]
|
|
else
|
|
begin
|
|
{ create the procsym with saving the original case }
|
|
aktprocsym:=tprocsym.create('$'+sp);
|
|
if assigned(overloaded_operators[optoken]) then
|
|
overloaded_operators[optoken].concat_procdefs_to(aktprocsym);
|
|
end;
|
|
end
|
|
else
|
|
aktprocsym:=tprocsym.create(orgsp);
|
|
symtablestack.insert(aktprocsym);
|
|
end
|
|
else
|
|
begin
|
|
{ Set global flag when found in globalsytmable }
|
|
if (not parse_only) and
|
|
(aktprocsym.owner.symtabletype=globalsymtable) then
|
|
procinfo.flags:=procinfo.flags or pi_is_global;
|
|
end;
|
|
|
|
st:=symtablestack;
|
|
aktprocdef:=tprocdef.create;
|
|
aktprocdef.symtablelevel:=symtablestack.symtablelevel;
|
|
|
|
if assigned(procinfo._class) then
|
|
aktprocdef._class := procinfo._class;
|
|
|
|
{ set the options from the caller (podestructor or poconstructor) }
|
|
aktprocdef.proctypeoption:=options;
|
|
|
|
{ add procsym to the procdef }
|
|
aktprocdef.procsym:=aktprocsym;
|
|
|
|
{ save file position and symbol options }
|
|
aktprocdef.fileinfo:=procstartfilepos;
|
|
aktprocdef.symoptions:=current_object_option;
|
|
|
|
{ this must also be inserted in the right symtable !! PM }
|
|
{ otherwise we get subbtle problems with
|
|
definitions of args defs in staticsymtable for
|
|
implementation of a global method }
|
|
if token=_LKLAMMER then
|
|
parameter_dec(aktprocdef);
|
|
|
|
{ calculate the offset of the parameters }
|
|
paramoffset:=target_info.first_parm_offset;
|
|
|
|
{ calculate frame pointer offset }
|
|
if lexlevel>normal_function_level then
|
|
begin
|
|
procinfo.framepointer_offset:=paramoffset;
|
|
inc(paramoffset,pointer_size);
|
|
{ this is needed to get correct framepointer push for local
|
|
forward functions !! }
|
|
aktprocdef.parast.symtablelevel:=lexlevel;
|
|
end;
|
|
|
|
{ Get self, vmt offsets }
|
|
if assigned (procinfo._Class) then
|
|
begin
|
|
{ self pointer offset, must be done after parsing the parameters }
|
|
{ self isn't pushed in nested procedure of methods }
|
|
if (lexlevel=normal_function_level) then
|
|
begin
|
|
if assigned(aktprocdef) and
|
|
not(po_containsself in aktprocdef.procoptions) then
|
|
begin
|
|
procinfo.selfpointer_offset:=paramoffset;
|
|
inc(paramoffset,POINTER_SIZE);
|
|
end;
|
|
end;
|
|
|
|
{ Special parameters for de-/constructors }
|
|
case aktprocdef.proctypeoption of
|
|
potype_constructor :
|
|
begin
|
|
procinfo.vmtpointer_offset:=paramoffset;
|
|
inc(paramoffset,POINTER_SIZE);
|
|
end;
|
|
potype_destructor :
|
|
begin
|
|
if is_object(procinfo._class) then
|
|
begin
|
|
procinfo.vmtpointer_offset:=paramoffset;
|
|
inc(paramoffset,POINTER_SIZE);
|
|
end
|
|
else
|
|
if is_class(procinfo._class) then
|
|
begin
|
|
procinfo.inheritedflag_offset:=paramoffset;
|
|
inc(paramoffset,POINTER_SIZE);
|
|
end
|
|
else
|
|
internalerror(200303261);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procinfo.para_offset:=paramoffset;
|
|
|
|
{ so we only restore the symtable now }
|
|
symtablestack:=st;
|
|
if (options=potype_operator) then
|
|
overloaded_operators[optoken]:=aktprocsym;
|
|
end;
|
|
|
|
|
|
procedure parse_proc_dec;
|
|
var
|
|
hs : string;
|
|
isclassmethod : boolean;
|
|
begin
|
|
inc(lexlevel);
|
|
{ read class method }
|
|
if 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);
|
|
|
|
isclassmethod:=true;
|
|
end
|
|
else
|
|
isclassmethod:=false;
|
|
case token of
|
|
_FUNCTION :
|
|
begin
|
|
consume(_FUNCTION);
|
|
parse_proc_head(potype_none);
|
|
if token<>_COLON then
|
|
begin
|
|
if (
|
|
assigned(aktprocsym) and
|
|
not(is_interface(aktprocdef._class)) and
|
|
not(aktprocdef.forwarddef)
|
|
) or
|
|
(m_repeat_forward in aktmodeswitches) then
|
|
begin
|
|
consume(_COLON);
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
consume(_COLON);
|
|
inc(testcurobject);
|
|
single_type(aktprocdef.rettype,hs,false);
|
|
aktprocdef.test_if_fpu_result;
|
|
if (aktprocdef.rettype.def.deftype=stringdef) and
|
|
(tstringdef(aktprocdef.rettype.def).string_typ<>st_shortstring) then
|
|
procinfo.no_fast_exit:=true;
|
|
dec(testcurobject);
|
|
end;
|
|
|
|
{ Insert function result parameter }
|
|
insert_funcret_para(aktprocdef);
|
|
end;
|
|
_PROCEDURE :
|
|
begin
|
|
consume(_PROCEDURE);
|
|
parse_proc_head(potype_none);
|
|
if assigned(aktprocsym) then
|
|
aktprocdef.rettype:=voidtype;
|
|
end;
|
|
_CONSTRUCTOR :
|
|
begin
|
|
consume(_CONSTRUCTOR);
|
|
parse_proc_head(potype_constructor);
|
|
if assigned(procinfo._class) and
|
|
is_class(procinfo._class) then
|
|
begin
|
|
{ CLASS constructors return the created instance }
|
|
aktprocdef.rettype.setdef(procinfo._class);
|
|
end
|
|
else
|
|
begin
|
|
{ OBJECT constructors return a boolean }
|
|
aktprocdef.rettype:=booltype;
|
|
end;
|
|
end;
|
|
_DESTRUCTOR :
|
|
begin
|
|
consume(_DESTRUCTOR);
|
|
parse_proc_head(potype_destructor);
|
|
aktprocdef.rettype:=voidtype;
|
|
end;
|
|
_OPERATOR :
|
|
begin
|
|
if lexlevel>normal_function_level then
|
|
Message(parser_e_no_local_operator);
|
|
consume(_OPERATOR);
|
|
if (token in [first_overloaded..last_overloaded]) then
|
|
begin
|
|
procinfo.flags:=procinfo.flags or pi_operator;
|
|
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(potype_operator);
|
|
if token<>_ID then
|
|
begin
|
|
if not(m_result in aktmodeswitches) then
|
|
consume(_ID);
|
|
end
|
|
else
|
|
begin
|
|
aktprocdef.resultname:=orgpattern;
|
|
consume(_ID);
|
|
end;
|
|
if not try_to_consume(_COLON) then
|
|
begin
|
|
consume(_COLON);
|
|
aktprocdef.rettype:=generrortype;
|
|
consume_all_until(_SEMICOLON);
|
|
end
|
|
else
|
|
begin
|
|
single_type(aktprocdef.rettype,hs,false);
|
|
aktprocdef.test_if_fpu_result;
|
|
if (optoken in [_EQUAL,_GT,_LT,_GTE,_LTE]) and
|
|
((aktprocdef.rettype.def.deftype<>orddef) or
|
|
(torddef(aktprocdef.rettype.def).typ<>bool8bit)) then
|
|
Message(parser_e_comparative_operator_return_boolean);
|
|
if (optoken=_ASSIGNMENT) and
|
|
equal_defs(aktprocdef.rettype.def,
|
|
tvarsym(aktprocdef.parast.symindex.first).vartype.def) then
|
|
message(parser_e_no_such_assignment)
|
|
else if not isoperatoracceptable(aktprocdef,optoken) then
|
|
Message(parser_e_overload_impossible);
|
|
end;
|
|
|
|
{ Insert function result parameter }
|
|
insert_funcret_para(aktprocdef);
|
|
end;
|
|
end;
|
|
if isclassmethod and
|
|
assigned(aktprocsym) then
|
|
include(aktprocdef.procoptions,po_classmethod);
|
|
{ support procedure proc;stdcall export; in Delphi mode only }
|
|
if not((m_delphi in aktmodeswitches) and
|
|
is_proc_directive(token)) then
|
|
consume(_SEMICOLON);
|
|
dec(lexlevel);
|
|
end;
|
|
|
|
|
|
{****************************************************************************
|
|
Procedure directive handlers
|
|
****************************************************************************}
|
|
|
|
procedure pd_far;
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'FAR');
|
|
end;
|
|
|
|
procedure pd_near;
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'NEAR');
|
|
end;
|
|
|
|
procedure pd_export;
|
|
begin
|
|
if assigned(procinfo._class) then
|
|
Message(parser_e_methods_dont_be_export);
|
|
if lexlevel<>normal_function_level then
|
|
Message(parser_e_dont_nest_export);
|
|
{ only os/2 and emx need this }
|
|
if target_info.system in [system_i386_os2,system_i386_emx] then
|
|
begin
|
|
aktprocdef.aliasnames.insert(aktprocsym.realname);
|
|
procinfo.exported:=true;
|
|
if cs_link_deffile in aktglobalswitches then
|
|
deffile.AddExport(aktprocdef.mangledname);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_forward;
|
|
begin
|
|
aktprocdef.forwarddef:=true;
|
|
end;
|
|
|
|
procedure pd_alias;
|
|
begin
|
|
consume(_COLON);
|
|
aktprocdef.aliasnames.insert(get_stringconst);
|
|
end;
|
|
|
|
procedure pd_asmname;
|
|
begin
|
|
aktprocdef.setmangledname(target_info.Cprefix+pattern);
|
|
if token=_CCHAR then
|
|
consume(_CCHAR)
|
|
else
|
|
consume(_CSTRING);
|
|
{ we don't need anything else }
|
|
aktprocdef.forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_inline;
|
|
var
|
|
hp : tparaitem;
|
|
begin
|
|
{ check if there is an array of const }
|
|
hp:=tparaitem(aktprocdef.para.first);
|
|
while assigned(hp) do
|
|
begin
|
|
if assigned(hp.paratype.def) and
|
|
(hp.paratype.def.deftype=arraydef) then
|
|
begin
|
|
with tarraydef(hp.paratype.def) do
|
|
if IsVariant or IsConstructor {or IsArrayOfConst} then
|
|
begin
|
|
Message1(parser_w_not_supported_for_inline,'array of const');
|
|
Message(parser_w_inlining_disabled);
|
|
aktprocdef.proccalloption:=pocall_fpccall;
|
|
end;
|
|
end;
|
|
hp:=tparaitem(hp.next);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_intern;
|
|
begin
|
|
consume(_COLON);
|
|
aktprocdef.extnumber:=get_intconst;
|
|
end;
|
|
|
|
procedure pd_interrupt;
|
|
begin
|
|
if lexlevel<>normal_function_level then
|
|
Message(parser_e_dont_nest_interrupt);
|
|
end;
|
|
|
|
procedure pd_abstract;
|
|
begin
|
|
if (po_virtualmethod in aktprocdef.procoptions) then
|
|
include(aktprocdef.procoptions,po_abstractmethod)
|
|
else
|
|
Message(parser_e_only_virtual_methods_abstract);
|
|
{ the method is defined }
|
|
aktprocdef.forwarddef:=false;
|
|
end;
|
|
|
|
procedure pd_virtual;
|
|
{$ifdef WITHDMT}
|
|
var
|
|
pt : tnode;
|
|
{$endif WITHDMT}
|
|
begin
|
|
if (aktprocdef.proctypeoption=potype_constructor) and
|
|
is_object(aktprocdef._class) then
|
|
Message(parser_e_constructor_cannot_be_not_virtual);
|
|
{$ifdef WITHDMT}
|
|
if is_object(aktprocdef._class) and
|
|
(token<>_SEMICOLON) then
|
|
begin
|
|
{ any type of parameter is allowed here! }
|
|
pt:=comp_expr(true);
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(aktprocdef.procoptions,po_msgint);
|
|
aktprocdef.messageinf.i:=pt^.value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
disposetree(pt);
|
|
end;
|
|
{$endif WITHDMT}
|
|
end;
|
|
|
|
procedure pd_static;
|
|
begin
|
|
if (cs_static_keyword in aktmoduleswitches) then
|
|
begin
|
|
include(aktprocsym.symoptions,sp_static);
|
|
include(aktprocdef.procoptions,po_staticmethod);
|
|
end;
|
|
end;
|
|
|
|
procedure pd_override;
|
|
begin
|
|
if not(is_class_or_interface(aktprocdef._class)) then
|
|
Message(parser_e_no_object_override);
|
|
end;
|
|
|
|
procedure pd_overload;
|
|
begin
|
|
include(aktprocsym.symoptions,sp_has_overloaded);
|
|
end;
|
|
|
|
procedure pd_message;
|
|
var
|
|
pt : tnode;
|
|
begin
|
|
if not is_class(aktprocdef._class) then
|
|
Message(parser_e_msg_only_for_classes);
|
|
{ check parameter type }
|
|
if not(po_containsself in aktprocdef.procoptions) and
|
|
((aktprocdef.minparacount<>1) or
|
|
(aktprocdef.maxparacount<>1) or
|
|
(TParaItem(aktprocdef.Para.first).paratyp<>vs_var)) then
|
|
Message(parser_e_ill_msg_param);
|
|
pt:=comp_expr(true);
|
|
if pt.nodetype=stringconstn then
|
|
begin
|
|
include(aktprocdef.procoptions,po_msgstr);
|
|
aktprocdef.messageinf.str:=strnew(tstringconstnode(pt).value_str);
|
|
end
|
|
else
|
|
if is_constintnode(pt) then
|
|
begin
|
|
include(aktprocdef.procoptions,po_msgint);
|
|
aktprocdef.messageinf.i:=tordconstnode(pt).value;
|
|
end
|
|
else
|
|
Message(parser_e_ill_msg_expr);
|
|
pt.free;
|
|
end;
|
|
|
|
|
|
procedure pd_reintroduce;
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'REINTRODUCE');
|
|
end;
|
|
|
|
|
|
procedure pd_syscall;
|
|
begin
|
|
aktprocdef.forwarddef:=false;
|
|
aktprocdef.extnumber:=get_intconst;
|
|
end;
|
|
|
|
|
|
procedure pd_external;
|
|
{
|
|
If import_dll=nil the procedure is assumed to be in another
|
|
object file. In that object file it should have the name to
|
|
which import_name is pointing to. Otherwise, the procedure is
|
|
assumed to be in the DLL to which import_dll is pointing to. In
|
|
that case either import_nr<>0 or import_name<>nil is true, so
|
|
the procedure is either imported by number or by name. (DM)
|
|
}
|
|
var
|
|
pd : tprocdef;
|
|
import_dll,
|
|
import_name : string;
|
|
import_nr : word;
|
|
begin
|
|
aktprocdef.forwarddef:=false;
|
|
{ forbid local external procedures }
|
|
if lexlevel>normal_function_level then
|
|
Message(parser_e_no_local_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) }
|
|
import_nr:=0;
|
|
import_name:='';
|
|
if not(token=_SEMICOLON) and not(idtoken=_NAME) then
|
|
begin
|
|
import_dll:=get_stringconst;
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=get_stringconst;
|
|
end;
|
|
if (idtoken=_INDEX) then
|
|
begin
|
|
{After the word index follows the index number in the DLL.}
|
|
consume(_INDEX);
|
|
import_nr:=get_intconst;
|
|
end;
|
|
{ default is to used the realname of the procedure }
|
|
if (import_nr=0) and (import_name='') then
|
|
import_name:=aktprocsym.realname;
|
|
{ create importlib if not already done }
|
|
if not(current_module.uses_imports) then
|
|
begin
|
|
current_module.uses_imports:=true;
|
|
importlib.preparelib(current_module.modulename^);
|
|
end;
|
|
if not(m_repeat_forward in aktmodeswitches) then
|
|
begin
|
|
{ we can only have one overloaded here ! }
|
|
if aktprocsym.procdef_count>1 then
|
|
pd:=aktprocsym.procdef[2]
|
|
else
|
|
pd:=aktprocdef;
|
|
end
|
|
else
|
|
pd:=aktprocdef;
|
|
importlib.importproceduredef(pd,import_dll,import_nr,import_name);
|
|
end
|
|
else
|
|
begin
|
|
if (idtoken=_NAME) then
|
|
begin
|
|
consume(_NAME);
|
|
import_name:=get_stringconst;
|
|
aktprocdef.setmangledname(import_name);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
type
|
|
pd_handler=procedure;
|
|
proc_dir_rec=record
|
|
idtok : ttoken;
|
|
pd_flags : longint;
|
|
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=36;
|
|
proc_direcdata:array[1..num_proc_directives] of proc_dir_rec=
|
|
(
|
|
(
|
|
idtok:_ABSTRACT;
|
|
pd_flags : pd_interface+pd_object+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_abstract;
|
|
pocall : pocall_none;
|
|
pooption : [po_abstractmethod];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_exports,po_interrupt,po_external]
|
|
),(
|
|
idtok:_ALIAS;
|
|
pd_flags : pd_implemen+pd_body+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_alias;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_ASMNAME;
|
|
pd_flags : pd_interface+pd_implemen+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_asmname;
|
|
pocall : pocall_cdecl;
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_ASSEMBLER;
|
|
pd_flags : pd_implemen+pd_body+pd_notobjintf;
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_assembler];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_CDECL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_cdecl;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_DYNAMIC;
|
|
pd_flags : pd_interface+pd_object+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_virtual;
|
|
pocall : pocall_none;
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_interrupt,po_external]
|
|
),(
|
|
idtok:_EXPORT;
|
|
pd_flags : pd_body+pd_global+pd_interface+pd_implemen{??}+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_export;
|
|
pocall : pocall_none;
|
|
pooption : [po_exports];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_interrupt]
|
|
),(
|
|
idtok:_EXTERNAL;
|
|
pd_flags : pd_implemen+pd_interface+pd_notobject+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_external;
|
|
pocall : pocall_none;
|
|
pooption : [po_external];
|
|
mutexclpocall : [pocall_internproc,pocall_inline,pocall_palmossyscall];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_exports,po_interrupt,po_assembler]
|
|
),(
|
|
idtok:_FAR;
|
|
pd_flags : pd_implemen+pd_body+pd_interface+pd_procvar+pd_notobject+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_far;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_FAR16;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar+pd_notobject;
|
|
handler : nil;
|
|
pocall : pocall_far16;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_leftright]
|
|
),(
|
|
idtok:_FORWARD;
|
|
pd_flags : pd_implemen+pd_notobject+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_forward;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_FPCCALL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_fpccall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_leftright]
|
|
),(
|
|
idtok:_INLINE;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_inline;
|
|
pocall : pocall_inline;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_exports,po_external,po_interrupt]
|
|
),(
|
|
idtok:_INTERNCONST;
|
|
pd_flags : pd_implemen+pd_body+pd_notobject+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_intern;
|
|
pocall : pocall_none;
|
|
pooption : [po_internconst];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_operator];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_INTERNPROC;
|
|
pd_flags : pd_implemen+pd_notobject+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_intern;
|
|
pocall : pocall_internproc;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_exports,po_external,po_interrupt,po_assembler,po_iocheck,po_leftright]
|
|
),(
|
|
idtok:_INTERRUPT;
|
|
pd_flags : pd_implemen+pd_body+pd_notobject+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_interrupt;
|
|
pocall : pocall_none;
|
|
pooption : [po_interrupt];
|
|
mutexclpocall : [pocall_internproc,pocall_cdecl,pocall_cppdecl,
|
|
pocall_inline,pocall_pascal,pocall_system,pocall_far16,pocall_fpccall];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_external,po_leftright,po_clearstack]
|
|
),(
|
|
idtok:_IOCHECK;
|
|
pd_flags : pd_implemen+pd_body+pd_notobjintf;
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_iocheck];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_MESSAGE;
|
|
pd_flags : pd_interface+pd_object+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_message;
|
|
pocall : pocall_none;
|
|
pooption : []; { can be po_msgstr or po_msgint }
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor,potype_operator];
|
|
mutexclpo : [po_interrupt,po_external]
|
|
),(
|
|
idtok:_NEAR;
|
|
pd_flags : pd_implemen+pd_body+pd_procvar+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_near;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERLOAD;
|
|
pd_flags : pd_implemen+pd_interface+pd_body;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_overload;
|
|
pocall : pocall_none;
|
|
pooption : [po_overload];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_OVERRIDE;
|
|
pd_flags : pd_interface+pd_object+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_override;
|
|
pocall : pocall_none;
|
|
pooption : [po_overridingmethod,po_virtualmethod];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_exports,po_external,po_interrupt]
|
|
),(
|
|
idtok:_PASCAL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_pascal;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_POPSTACK;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_clearstack];
|
|
mutexclpocall : [pocall_inline,pocall_internproc,pocall_stdcall];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_assembler,po_external]
|
|
),(
|
|
idtok:_PUBLIC;
|
|
pd_flags : pd_implemen+pd_body+pd_global+pd_notobject+pd_notobjintf;
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [pocall_internproc,pocall_inline];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_REGISTER;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_register;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_REINTRODUCE;
|
|
pd_flags : pd_interface+pd_object;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_reintroduce;
|
|
pocall : pocall_none;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [];
|
|
mutexclpo : []
|
|
),(
|
|
idtok:_SAFECALL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_safecall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SAVEREGISTERS;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar+pd_notobjintf;
|
|
handler : nil;
|
|
pocall : pocall_none;
|
|
pooption : [po_saveregisters];
|
|
mutexclpocall : [pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_STATIC;
|
|
pd_flags : pd_interface+pd_object+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_static;
|
|
pocall : pocall_none;
|
|
pooption : [po_staticmethod];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_STDCALL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_stdcall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external]
|
|
),(
|
|
idtok:_SYSCALL;
|
|
pd_flags : pd_interface+pd_implemen+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_syscall;
|
|
pocall : pocall_palmossyscall;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_assembler,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_SYSTEM;
|
|
pd_flags : pd_implemen+pd_notobject+pd_notobjintf;
|
|
handler : nil;
|
|
pocall : pocall_system;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_external,po_assembler,po_interrupt]
|
|
),(
|
|
idtok:_VIRTUAL;
|
|
pd_flags : pd_interface+pd_object+pd_notobjintf;
|
|
handler : {$ifdef FPCPROCVAR}@{$endif}pd_virtual;
|
|
pocall : pocall_none;
|
|
pooption : [po_virtualmethod];
|
|
mutexclpocall : [pocall_inline,pocall_internproc];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_external,po_interrupt,po_exports]
|
|
),(
|
|
idtok:_CPPDECL;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_procvar;
|
|
handler : nil;
|
|
pocall : pocall_cppdecl;
|
|
pooption : [po_savestdregs];
|
|
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_inline,pocall_far16,pocall_fpccall];
|
|
mutexclpotype : [];
|
|
mutexclpo : [po_assembler,po_interrupt,po_leftright]
|
|
),(
|
|
idtok:_COMPILERPROC;
|
|
pd_flags : pd_interface+pd_implemen+pd_body+pd_notobjintf;
|
|
handler : nil;
|
|
pocall : pocall_compilerproc;
|
|
pooption : [];
|
|
mutexclpocall : [];
|
|
mutexclpotype : [potype_constructor,potype_destructor];
|
|
mutexclpo : [po_interrupt]
|
|
)
|
|
);
|
|
|
|
|
|
function is_proc_directive(tok:ttoken):boolean;
|
|
var
|
|
i : longint;
|
|
begin
|
|
is_proc_directive:=false;
|
|
for i:=1 to num_proc_directives do
|
|
if proc_direcdata[i].idtok=idtoken then
|
|
begin
|
|
is_proc_directive:=true;
|
|
exit;
|
|
end;
|
|
end;
|
|
|
|
|
|
function parse_proc_direc(var pdflags:word):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;
|
|
|
|
{ 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 and (pd_procvar or pd_object))=0 then
|
|
Message1(parser_w_unknown_proc_directive_ignored,name);
|
|
exit;
|
|
end;
|
|
|
|
{ static needs a special treatment }
|
|
if (idtoken=_STATIC) and not (cs_static_keyword in aktmoduleswitches) then
|
|
exit;
|
|
|
|
{ Conflicts between directives ? }
|
|
if (aktprocdef.proctypeoption in proc_direcdata[p].mutexclpotype) or
|
|
(aktprocdef.proccalloption in proc_direcdata[p].mutexclpocall) or
|
|
((aktprocdef.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 aktprocdef.proccalloption<>pocall_none then
|
|
begin
|
|
Message2(parser_w_proc_overriding_calling,
|
|
proccalloptionStr[aktprocdef.proccalloption],
|
|
proccalloptionStr[proc_direcdata[p].pocall]);
|
|
end;
|
|
aktprocdef.proccalloption:=proc_direcdata[p].pocall;
|
|
end;
|
|
|
|
{ check if method and directive not for object, like public.
|
|
This needs to be checked also for procvars }
|
|
if ((proc_direcdata[p].pd_flags and pd_notobject)<>0) and
|
|
(aktprocdef.owner.symtabletype=objectsymtable) then
|
|
exit;
|
|
|
|
if aktprocdef.deftype=procdef then
|
|
begin
|
|
{ Check if the directive is only for objects }
|
|
if ((proc_direcdata[p].pd_flags and pd_object)<>0) and
|
|
not assigned(aktprocdef._class) then
|
|
exit;
|
|
|
|
{ check if method and directive not for interface }
|
|
if ((proc_direcdata[p].pd_flags and pd_notobjintf)<>0) and
|
|
is_interface(aktprocdef._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 ((pdflags and pd_interface)<>0) and
|
|
((proc_direcdata[p].pd_flags and pd_interface)=0) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_interface,name);
|
|
exit;
|
|
end;
|
|
if ((pdflags and pd_implemen)<>0) and
|
|
((proc_direcdata[p].pd_flags and pd_implemen)=0) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_implementation,name);
|
|
exit;
|
|
end;
|
|
if ((pdflags and pd_procvar)<>0) and
|
|
((proc_direcdata[p].pd_flags and pd_procvar)=0) then
|
|
begin
|
|
Message1(parser_e_proc_dir_not_allowed_in_procvar,name);
|
|
exit;
|
|
end;
|
|
|
|
{ Return the new pd_flags }
|
|
if (proc_direcdata[p].pd_flags and pd_body)=0 then
|
|
pdflags:=pdflags and (not pd_body);
|
|
if (proc_direcdata[p].pd_flags and pd_global)<>0 then
|
|
pdflags:=pdflags or pd_global;
|
|
|
|
{ Add the correct flag }
|
|
aktprocdef.procoptions:=aktprocdef.procoptions+proc_direcdata[p].pooption;
|
|
|
|
{ Call the handler }
|
|
if pointer({$ifndef FPCPROCVAR}@{$endif}proc_direcdata[p].handler)<>nil then
|
|
proc_direcdata[p].handler{$ifdef FPCPROCVAR}(){$endif};
|
|
end;
|
|
|
|
|
|
procedure handle_calling_convention(sym:tprocsym;def:tabstractprocdef);
|
|
begin
|
|
{ set the default calling convention }
|
|
if def.proccalloption=pocall_none then
|
|
def.proccalloption:=aktdefproccall;
|
|
{ handle proccall specific settings }
|
|
case def.proccalloption of
|
|
pocall_cdecl :
|
|
begin
|
|
{ use popstack and save std registers }
|
|
include(def.procoptions,po_clearstack);
|
|
include(def.procoptions,po_savestdregs);
|
|
{ set mangledname }
|
|
if (def.deftype=procdef) then
|
|
begin
|
|
if not tprocdef(def).has_mangledname then
|
|
begin
|
|
if assigned(tprocdef(def)._class) then
|
|
tprocdef(def).setmangledname(target_info.Cprefix+tprocdef(def)._class.objrealname^+'_'+sym.realname)
|
|
else
|
|
tprocdef(def).setmangledname(target_info.Cprefix+sym.realname);
|
|
end;
|
|
if not assigned(tprocdef(def).parast) then
|
|
internalerror(200110234);
|
|
{ check C cdecl para types }
|
|
tprocdef(def).parast.foreach_static({$ifdef FPCPROCVAR}@{$endif}check_c_para,nil);
|
|
{ Adjust alignment to match cdecl or stdcall }
|
|
tprocdef(def).parast.dataalignment:=std_param_align;
|
|
end;
|
|
end;
|
|
pocall_cppdecl :
|
|
begin
|
|
if not assigned(sym) then
|
|
internalerror(200110231);
|
|
{ use popstack and save std registers }
|
|
include(def.procoptions,po_clearstack);
|
|
include(def.procoptions,po_savestdregs);
|
|
{ set mangledname }
|
|
if (def.deftype=procdef) then
|
|
begin
|
|
if not tprocdef(def).has_mangledname then
|
|
tprocdef(def).setmangledname(target_info.Cprefix+tprocdef(def).cplusplusmangledname);
|
|
if not assigned(tprocdef(def).parast) then
|
|
internalerror(200110235);
|
|
{ check C cdecl para types }
|
|
tprocdef(def).parast.foreach_static({$ifdef FPCPROCVAR}@{$endif}check_c_para,nil);
|
|
{ Adjust alignment to match cdecl or stdcall }
|
|
tprocdef(def).parast.dataalignment:=std_param_align;
|
|
end;
|
|
end;
|
|
pocall_stdcall :
|
|
begin
|
|
include(def.procoptions,po_savestdregs);
|
|
if (def.deftype=procdef) then
|
|
begin
|
|
if not assigned(tprocdef(def).parast) then
|
|
internalerror(200110236);
|
|
{ Adjust alignment to match cdecl or stdcall }
|
|
tprocdef(def).parast.dataalignment:=std_param_align;
|
|
end;
|
|
end;
|
|
pocall_safecall :
|
|
begin
|
|
include(def.procoptions,po_savestdregs);
|
|
end;
|
|
pocall_compilerproc :
|
|
begin
|
|
if (not assigned(sym)) or
|
|
(def.deftype<>procdef) then
|
|
internalerror(200110232);
|
|
tprocdef(def).setmangledname(lower(sym.name));
|
|
end;
|
|
pocall_pascal :
|
|
begin
|
|
include(def.procoptions,po_leftright);
|
|
end;
|
|
pocall_register :
|
|
begin
|
|
Message1(parser_w_proc_directive_ignored,'REGISTER');
|
|
end;
|
|
pocall_far16 :
|
|
begin
|
|
{ Temporary stub, must be rewritten to support OS/2 far16 }
|
|
Message1(parser_w_proc_directive_ignored,'FAR16');
|
|
end;
|
|
pocall_system :
|
|
begin
|
|
include(def.procoptions,po_clearstack);
|
|
if (not assigned(sym)) or
|
|
(def.deftype<>procdef) then
|
|
internalerror(200110233);
|
|
if not tprocdef(def).has_mangledname then
|
|
tprocdef(def).setmangledname(sym.realname);
|
|
end;
|
|
pocall_palmossyscall :
|
|
begin
|
|
{ use popstack and save std registers }
|
|
include(def.procoptions,po_clearstack);
|
|
include(def.procoptions,po_savestdregs);
|
|
if (def.deftype=procdef) then
|
|
begin
|
|
if not assigned(tprocdef(def).parast) then
|
|
internalerror(200110236);
|
|
{ Adjust positions of args for cdecl or stdcall }
|
|
tprocdef(def).parast.dataalignment:=std_param_align;
|
|
end;
|
|
end;
|
|
pocall_inline :
|
|
begin
|
|
if not(cs_support_inline in aktmoduleswitches) then
|
|
begin
|
|
Message(parser_e_proc_inline_not_supported);
|
|
def.proccalloption:=pocall_fpccall;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ insert hidden high parameters }
|
|
insert_hidden_para(def);
|
|
|
|
{ insert local valXXX value parameters }
|
|
if (def.deftype=procdef) then
|
|
tprocdef(def).parast.foreach_static({$ifdef FPCPROCVAR}@{$endif}checkvaluepara,nil);
|
|
|
|
{ add mangledname to external list }
|
|
if (def.deftype=procdef) and
|
|
(po_external in def.procoptions) and
|
|
target_info.DllScanSupported then
|
|
current_module.externals.insert(tExternalsItem.create(tprocdef(def).mangledname));
|
|
end;
|
|
|
|
|
|
procedure calc_parasymtable_addresses(pd:tprocdef);
|
|
var
|
|
currpara : tparaitem;
|
|
st : tsymtable;
|
|
begin
|
|
st:=pd.parast;
|
|
if po_leftright in pd.procoptions then
|
|
begin
|
|
{ pushed from left to right, so the in reverse order
|
|
on the stack }
|
|
currpara:=tparaitem(pd.para.last);
|
|
while assigned(currpara) do
|
|
begin
|
|
if not(assigned(currpara.parasym) and (currpara.parasym.typ=varsym)) then
|
|
internalerror(200304231);
|
|
st.insertvardata(currpara.parasym);
|
|
currpara:=tparaitem(currpara.previous);
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
{ pushed from right to left }
|
|
currpara:=tparaitem(pd.para.first);
|
|
while assigned(currpara) do
|
|
begin
|
|
if not(assigned(currpara.parasym) and (currpara.parasym.typ=varsym)) then
|
|
internalerror(200304232);
|
|
st.insertvardata(currpara.parasym);
|
|
currpara:=tparaitem(currpara.next);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
|
|
procedure parse_proc_directives(var pdflags:word);
|
|
{
|
|
Parse the procedure directives. It does not matter if procedure directives
|
|
are written using ;procdir; or ['procdir'] syntax.
|
|
}
|
|
var
|
|
res : boolean;
|
|
begin
|
|
while token in [_ID,_LECKKLAMMER] do
|
|
begin
|
|
if try_to_consume(_LECKKLAMMER) then
|
|
begin
|
|
repeat
|
|
parse_proc_direc(pdflags);
|
|
until not try_to_consume(_COMMA);
|
|
consume(_RECKKLAMMER);
|
|
{ we always expect at least '[];' }
|
|
res:=true;
|
|
end
|
|
else
|
|
begin
|
|
res:=parse_proc_direc(pdflags);
|
|
end;
|
|
{ A procedure directive normally followed by a semicolon, but in
|
|
a const section we should stop when _EQUAL is found }
|
|
if res then
|
|
begin
|
|
if (block_type=bt_const) and
|
|
(token=_EQUAL) then
|
|
break;
|
|
{ support procedure proc;stdcall export; in Delphi mode only }
|
|
if not((m_delphi in aktmodeswitches) and
|
|
is_proc_directive(token)) then
|
|
consume(_SEMICOLON);
|
|
end
|
|
else
|
|
break;
|
|
end;
|
|
handle_calling_convention(aktprocsym,aktprocdef);
|
|
end;
|
|
|
|
|
|
procedure parse_var_proc_directives(var sym : tsym);
|
|
var
|
|
pdflags : word;
|
|
oldsym : tprocsym;
|
|
olddef : tprocdef;
|
|
pd : tabstractprocdef;
|
|
begin
|
|
oldsym:=aktprocsym;
|
|
olddef:=aktprocdef;
|
|
pdflags:=pd_procvar;
|
|
{ we create a temporary aktprocsym to read the directives }
|
|
aktprocsym:=tprocsym.create(sym.name);
|
|
case sym.typ of
|
|
varsym :
|
|
pd:=tabstractprocdef(tvarsym(sym).vartype.def);
|
|
typedconstsym :
|
|
pd:=tabstractprocdef(ttypedconstsym(sym).typedconsttype.def);
|
|
typesym :
|
|
pd:=tabstractprocdef(ttypesym(sym).restype.def);
|
|
else
|
|
internalerror(994932432);
|
|
end;
|
|
if pd.deftype<>procvardef then
|
|
internalerror(994932433);
|
|
tabstractprocdef(aktprocdef):=pd;
|
|
{ names should never be used anyway }
|
|
inc(lexlevel);
|
|
parse_proc_directives(pdflags);
|
|
dec(lexlevel);
|
|
aktprocsym.free;
|
|
aktprocsym:=oldsym;
|
|
aktprocdef:=olddef;
|
|
end;
|
|
|
|
|
|
procedure parse_object_proc_directives(var sym : tprocsym);
|
|
var
|
|
pdflags : word;
|
|
begin
|
|
pdflags:=pd_object;
|
|
inc(lexlevel);
|
|
parse_proc_directives(pdflags);
|
|
dec(lexlevel);
|
|
if (po_containsself in aktprocdef.procoptions) and
|
|
(([po_msgstr,po_msgint]*aktprocdef.procoptions)=[]) then
|
|
Message(parser_e_self_in_non_message_handler);
|
|
end;
|
|
|
|
|
|
function proc_add_definition(aprocsym:tprocsym;var aprocdef : 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;
|
|
i : cardinal;
|
|
forwardfound : boolean;
|
|
po_comp : tprocoptions;
|
|
begin
|
|
forwardfound:=false;
|
|
|
|
{ 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(aprocdef.forwarddef) and
|
|
(aprocdef.maxparacount=0) and
|
|
not(po_overload in hd.procoptions)
|
|
) or
|
|
{ check arguments }
|
|
(
|
|
(compare_paras(aprocdef.para,hd.para,cp_none,false)>=te_equal) and
|
|
{ for operators equal_paras is not enough !! }
|
|
((aprocdef.proctypeoption<>potype_operator) or (optoken<>_ASSIGNMENT) or
|
|
equal_defs(hd.rettype.def,aprocdef.rettype.def))
|
|
) 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<>aprocdef.proctypeoption) or
|
|
(
|
|
(m_repeat_forward in aktmodeswitches) and
|
|
(not((aprocdef.maxparacount=0) or
|
|
(compare_paras(aprocdef.para,hd.para,cp_all,false)>=te_equal)))
|
|
) or
|
|
(
|
|
((m_repeat_forward in aktmodeswitches) or
|
|
not(is_void(aprocdef.rettype.def))) and
|
|
(not equal_defs(hd.rettype.def,aprocdef.rettype.def))) then
|
|
begin
|
|
MessagePos1(aprocdef.fileinfo,parser_e_header_dont_match_forward,
|
|
aprocdef.fullprocname(false));
|
|
aprocsym.write_parameter_lists(aprocdef);
|
|
break;
|
|
end;
|
|
|
|
{ Check if both are declared forward }
|
|
if hd.forwarddef and aprocdef.forwarddef then
|
|
begin
|
|
MessagePos1(aprocdef.fileinfo,parser_e_function_already_declared_public_forward,
|
|
aprocdef.fullprocname(false));
|
|
end;
|
|
|
|
{ internconst or internproc only need to be defined once }
|
|
if (hd.proccalloption=pocall_internproc) then
|
|
aprocdef.proccalloption:=hd.proccalloption
|
|
else
|
|
if (aprocdef.proccalloption=pocall_internproc) then
|
|
hd.proccalloption:=aprocdef.proccalloption;
|
|
if (po_internconst in hd.procoptions) then
|
|
include(aprocdef.procoptions,po_internconst)
|
|
else if (po_internconst in aprocdef.procoptions) then
|
|
include(hd.procoptions,po_internconst);
|
|
|
|
{ Check calling convention }
|
|
if (hd.proccalloption<>aprocdef.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 (aprocdef.proccalloption=pocall_none) then
|
|
aprocdef.proccalloption:=hd.proccalloption
|
|
else
|
|
if (hd.proccalloption=pocall_none) then
|
|
hd.proccalloption:=aprocdef.proccalloption
|
|
else
|
|
begin
|
|
MessagePos(aprocdef.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
aprocsym.write_parameter_lists(aprocdef);
|
|
{ restore interface settings }
|
|
aprocdef.proccalloption:=hd.proccalloption;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
MessagePos(aprocdef.fileinfo,parser_e_call_convention_dont_match_forward);
|
|
aprocsym.write_parameter_lists(aprocdef);
|
|
{ restore interface settings }
|
|
aprocdef.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_containsself,po_interrupt,po_clearstack]
|
|
else
|
|
po_comp:=[po_classmethod,po_methodpointer,po_containsself];
|
|
|
|
if ((po_comp * hd.procoptions)<>(po_comp * aprocdef.procoptions)) then
|
|
begin
|
|
MessagePos1(aprocdef.fileinfo,parser_e_header_dont_match_forward,
|
|
aprocdef.fullprocname(false));
|
|
aprocsym.write_parameter_lists(aprocdef);
|
|
{ This error is non-fatal, we can recover }
|
|
end;
|
|
|
|
{ Check manglednames }
|
|
if (m_repeat_forward in aktmodeswitches) or
|
|
(aprocdef.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(aprocdef.parast.symindex.first);
|
|
repeat
|
|
{ skip default parameter constsyms }
|
|
while assigned(ad) and (ad.typ<>varsym) do
|
|
ad:=tsym(ad.indexnext);
|
|
while assigned(fd) and (fd.typ<>varsym) 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;
|
|
if (ad.name<>fd.name) then
|
|
begin
|
|
MessagePos3(aprocdef.fileinfo,parser_e_header_different_var_names,
|
|
aprocsym.name,ad.name,fd.name);
|
|
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:=aprocdef.forwarddef;
|
|
hd.hasforward:=true;
|
|
hd.parast.address_fixup:=aprocdef.parast.address_fixup;
|
|
hd.procoptions:=hd.procoptions+aprocdef.procoptions;
|
|
if hd.extnumber=65535 then
|
|
hd.extnumber:=aprocdef.extnumber;
|
|
while not aprocdef.aliasnames.empty do
|
|
hd.aliasnames.insert(aprocdef.aliasnames.getfirst);
|
|
{ update mangledname if the implementation has a fixed mangledname set }
|
|
if aprocdef.has_mangledname then
|
|
begin
|
|
{ rename also asmsymbol first, because the name can already be used }
|
|
objectlibrary.renameasmsymbol(hd.mangledname,aprocdef.mangledname);
|
|
hd.setmangledname(aprocdef.mangledname);
|
|
end;
|
|
{ for compilerproc defines we need to rename and update the
|
|
symbolname to lowercase }
|
|
if (aprocdef.proccalloption=pocall_compilerproc) 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 }
|
|
aprocdef.releasemem;
|
|
aprocdef:=hd;
|
|
end
|
|
else
|
|
begin
|
|
{ abstract methods aren't forward defined, but this }
|
|
{ needs another error message }
|
|
if (po_abstractmethod in hd.procoptions) then
|
|
MessagePos(aprocdef.fileinfo,parser_e_abstract_no_definition)
|
|
else
|
|
MessagePos(aprocdef.fileinfo,parser_e_overloaded_have_same_parameters);
|
|
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 aprocdef.procoptions) or
|
|
(po_overload in hd.procoptions)) then
|
|
begin
|
|
{ check if all procs have overloading, but not if the proc was
|
|
already declared forward, then the check is already done }
|
|
if not(hd.hasforward or
|
|
(aprocdef.forwarddef<>hd.forwarddef) or
|
|
((po_overload in aprocdef.procoptions) and
|
|
(po_overload in hd.procoptions))) then
|
|
begin
|
|
MessagePos1(aprocdef.fileinfo,parser_e_no_overload_for_all_procs,aprocsym.realname);
|
|
break;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if not(hd.forwarddef) then
|
|
begin
|
|
MessagePos(aprocdef.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
|
|
begin
|
|
aprocsym.addprocdef(aprocdef);
|
|
{ add overloadnumber for unique naming, the overloadcount is
|
|
counted per module and 0 for the first procedure }
|
|
aprocdef.overloadnumber:=aprocsym.overloadcount;
|
|
inc(aprocsym.overloadcount);
|
|
end;
|
|
|
|
paramanager.create_param_loc_info(aprocdef);
|
|
proc_add_definition:=forwardfound;
|
|
end;
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.116 2003-04-25 20:59:33 peter
|
|
* removed funcretn,funcretsym, function result is now in varsym
|
|
and aliases for result and function name are added using absolutesym
|
|
* vs_hidden parameter for funcret passed in parameter
|
|
* vs_hidden fixes
|
|
* writenode changed to printnode and released from extdebug
|
|
* -vp option added to generate a tree.log with the nodetree
|
|
* nicer printnode for statements, callnode
|
|
|
|
Revision 1.115 2003/04/24 13:03:01 florian
|
|
* comp is now written with its bit pattern to the ppu instead as an extended
|
|
|
|
Revision 1.114 2003/04/23 13:12:26 peter
|
|
* fix po_comp setting for fpc mode
|
|
|
|
Revision 1.113 2003/04/23 10:12:51 peter
|
|
* don't check po_varargs for delphi
|
|
|
|
Revision 1.112 2003/04/22 13:47:08 peter
|
|
* fixed C style array of const
|
|
* fixed C array passing
|
|
* fixed left to right with high parameters
|
|
|
|
Revision 1.111 2003/04/10 17:57:53 peter
|
|
* vs_hidden released
|
|
|
|
Revision 1.110 2003/03/28 19:16:56 peter
|
|
* generic constructor working for i386
|
|
* remove fixed self register
|
|
* esi added as address register for i386
|
|
|
|
Revision 1.109 2003/03/23 23:21:42 hajny
|
|
+ emx target added
|
|
|
|
Revision 1.108 2003/03/19 17:34:04 peter
|
|
* only allow class [procedure|function]
|
|
|
|
Revision 1.107 2003/03/17 18:56:02 peter
|
|
* fix crash with duplicate id
|
|
|
|
Revision 1.106 2003/03/17 15:54:22 peter
|
|
* store symoptions also for procdef
|
|
* check symoptions (private,public) when calculating possible
|
|
overload candidates
|
|
|
|
Revision 1.105 2003/01/15 20:02:28 carl
|
|
* fix highname problem
|
|
|
|
Revision 1.104 2003/01/12 15:42:23 peter
|
|
* m68k pathexist update from 1.0.x
|
|
* palmos res update from 1.0.x
|
|
|
|
Revision 1.103 2003/01/07 19:16:38 peter
|
|
* removed some duplicate code when creating aktprocsym
|
|
|
|
Revision 1.102 2003/01/05 18:17:45 peter
|
|
* more conflicts for constructor/destructor types
|
|
|
|
Revision 1.100 2003/01/02 19:49:00 peter
|
|
* update self parameter only for methodpointer and methods
|
|
|
|
Revision 1.99 2003/01/01 22:51:03 peter
|
|
* high value insertion changed so it works also when 2 parameters
|
|
are passed
|
|
|
|
Revision 1.98 2003/01/01 14:35:33 peter
|
|
* don't check for export directive repeat
|
|
|
|
Revision 1.97 2002/12/29 18:16:06 peter
|
|
* delphi allows setting calling convention in interface or
|
|
implementation
|
|
|
|
Revision 1.96 2002/12/29 14:55:44 peter
|
|
* fix static method check
|
|
* don't require class for class methods in the implementation for
|
|
non delphi modes
|
|
|
|
Revision 1.95 2002/12/27 15:25:14 peter
|
|
* check procoptions when a forward is found
|
|
* exclude some call directives for constructor/destructor
|
|
|
|
Revision 1.94 2002/12/25 01:26:56 peter
|
|
* duplicate procsym-unitsym fix
|
|
|
|
Revision 1.93 2002/12/24 21:21:06 peter
|
|
* remove code that skipped the _ prefix for win32 imports
|
|
|
|
Revision 1.92 2002/12/23 21:24:22 peter
|
|
* fix wrong internalerror when var names were different
|
|
|
|
Revision 1.91 2002/12/23 20:58:52 peter
|
|
* cdecl array fix, hack to change it to vs_var is not needed
|
|
|
|
Revision 1.90 2002/12/17 22:19:33 peter
|
|
* fixed pushing of records>8 bytes with stdcall
|
|
* simplified hightree loading
|
|
|
|
Revision 1.89 2002/12/15 21:07:30 peter
|
|
* don't allow external in object declarations
|
|
|
|
Revision 1.88 2002/12/15 19:34:31 florian
|
|
+ some front end stuff for vs_hidden added
|
|
|
|
Revision 1.87 2002/12/07 14:27:07 carl
|
|
* 3% memory optimization
|
|
* changed some types
|
|
+ added type checking with different size for call node and for
|
|
parameters
|
|
|
|
Revision 1.86 2002/12/06 17:51:10 peter
|
|
* merged cdecl and array fixes
|
|
|
|
Revision 1.85 2002/12/01 22:06:14 carl
|
|
* cleanup of error messages
|
|
|
|
Revision 1.84 2002/11/29 22:31:19 carl
|
|
+ unimplemented hint directive added
|
|
* hint directive parsing implemented
|
|
* warning on these directives
|
|
|
|
Revision 1.83 2002/11/27 02:35:28 peter
|
|
* fixed typo in method comparing
|
|
|
|
Revision 1.82 2002/11/25 17:43:21 peter
|
|
* splitted defbase in defutil,symutil,defcmp
|
|
* merged isconvertable and is_equal into compare_defs(_ext)
|
|
* made operator search faster by walking the list only once
|
|
|
|
Revision 1.81 2002/11/18 17:31:58 peter
|
|
* pass proccalloption to ret_in_xxx and push_xxx functions
|
|
|
|
Revision 1.80 2002/11/17 16:31:56 carl
|
|
* memory optimization (3-4%) : cleanup of tai fields,
|
|
cleanup of tdef and tsym fields.
|
|
* make it work for m68k
|
|
|
|
Revision 1.79 2002/11/16 14:20:50 peter
|
|
* fix infinite loop in pd_inline
|
|
|
|
Revision 1.78 2002/11/15 01:58:53 peter
|
|
* merged changes from 1.0.7 up to 04-11
|
|
- -V option for generating bug report tracing
|
|
- more tracing for option parsing
|
|
- errors for cdecl and high()
|
|
- win32 import stabs
|
|
- win32 records<=8 are returned in eax:edx (turned off by default)
|
|
- heaptrc update
|
|
- more info for temp management in .s file with EXTDEBUG
|
|
|
|
Revision 1.77 2002/10/06 15:09:12 peter
|
|
* variant:=nil supported
|
|
|
|
Revision 1.76 2002/09/27 21:13:29 carl
|
|
* low-highval always checked if limit ober 2GB is reached (to avoid overflow)
|
|
|
|
Revision 1.75 2002/09/16 14:11:13 peter
|
|
* add argument to equal_paras() to support default values or not
|
|
|
|
Revision 1.74 2002/09/10 16:27:28 peter
|
|
* don't insert parast in symtablestack, because typesyms should not be
|
|
searched in the the parast
|
|
|
|
Revision 1.73 2002/09/09 19:39:07 peter
|
|
* check return type for forwarddefs also not delphi mode when
|
|
the type is not void
|
|
|
|
Revision 1.72 2002/09/09 17:34:15 peter
|
|
* tdicationary.replace added to replace and item in a dictionary. This
|
|
is only allowed for the same name
|
|
* varsyms are inserted in symtable before the types are parsed. This
|
|
fixes the long standing "var longint : longint" bug
|
|
- consume_idlist and idstringlist removed. The loops are inserted
|
|
at the callers place and uses the symtable for duplicate id checking
|
|
|
|
Revision 1.71 2002/09/07 15:25:06 peter
|
|
* old logs removed and tabs fixed
|
|
|
|
Revision 1.70 2002/09/03 16:26:27 daniel
|
|
* Make Tprocdef.defs protected
|
|
|
|
Revision 1.69 2002/09/01 12:11:33 peter
|
|
* calc param_offset after parameters are read, because the calculation
|
|
depends on po_containself
|
|
|
|
Revision 1.68 2002/08/25 19:25:20 peter
|
|
* sym.insert_in_data removed
|
|
* symtable.insertvardata/insertconstdata added
|
|
* removed insert_in_data call from symtable.insert, it needs to be
|
|
called separatly. This allows to deref the address calculation
|
|
* procedures now calculate the parast addresses after the procedure
|
|
directives are parsed. This fixes the cdecl parast problem
|
|
* push_addr_param has an extra argument that specifies if cdecl is used
|
|
or not
|
|
|
|
Revision 1.67 2002/08/25 11:33:06 peter
|
|
* also check the paratypes when a forward was found
|
|
|
|
Revision 1.66 2002/08/19 19:36:44 peter
|
|
* More fixes for cross unit inlining, all tnodes are now implemented
|
|
* Moved pocall_internconst to po_internconst because it is not a
|
|
calling type at all and it conflicted when inlining of these small
|
|
functions was requested
|
|
|
|
Revision 1.65 2002/08/18 20:06:24 peter
|
|
* inlining is now also allowed in interface
|
|
* renamed write/load to ppuwrite/ppuload
|
|
* tnode storing in ppu
|
|
* nld,ncon,nbas are already updated for storing in ppu
|
|
|
|
Revision 1.64 2002/08/17 09:23:39 florian
|
|
* first part of procinfo rewrite
|
|
|
|
Revision 1.63 2002/08/11 14:32:27 peter
|
|
* renamed current_library to objectlibrary
|
|
|
|
Revision 1.62 2002/08/11 13:24:12 peter
|
|
* saving of asmsymbols in ppu supported
|
|
* asmsymbollist global is removed and moved into a new class
|
|
tasmlibrarydata that will hold the info of a .a file which
|
|
corresponds with a single module. Added librarydata to tmodule
|
|
to keep the library info stored for the module. In the future the
|
|
objectfiles will also be stored to the tasmlibrarydata class
|
|
* all getlabel/newasmsymbol and friends are moved to the new class
|
|
|
|
Revision 1.61 2002/07/26 21:15:40 florian
|
|
* rewrote the system handling
|
|
|
|
Revision 1.60 2002/07/20 11:57:55 florian
|
|
* types.pas renamed to defbase.pas because D6 contains a types
|
|
unit so this would conflicts if D6 programms are compiled
|
|
+ Willamette/SSE2 instructions to assembler added
|
|
|
|
Revision 1.59 2002/07/11 14:41:28 florian
|
|
* start of the new generic parameter handling
|
|
|
|
Revision 1.58 2002/07/01 18:46:25 peter
|
|
* internal linker
|
|
* reorganized aasm layer
|
|
|
|
Revision 1.57 2002/05/18 13:34:12 peter
|
|
* readded missing revisions
|
|
|
|
Revision 1.56 2002/05/16 19:46:42 carl
|
|
+ defines.inc -> fpcdefs.inc to avoid conflicts if compiling by hand
|
|
+ try to fix temp allocation (still in ifdef)
|
|
+ generic constructor calls
|
|
+ start of tassembler / tmodulebase class cleanup
|
|
|
|
Revision 1.54 2002/05/12 16:53:08 peter
|
|
* moved entry and exitcode to ncgutil and cgobj
|
|
* foreach gets extra argument for passing local data to the
|
|
iterator function
|
|
* -CR checks also class typecasts at runtime by changing them
|
|
into as
|
|
* fixed compiler to cycle with the -CR option
|
|
* fixed stabs with elf writer, finally the global variables can
|
|
be watched
|
|
* removed a lot of routines from cga unit and replaced them by
|
|
calls to cgobj
|
|
* u32bit-s32bit updates for and,or,xor nodes. When one element is
|
|
u32bit then the other is typecasted also to u32bit without giving
|
|
a rangecheck warning/error.
|
|
* fixed pascal calling method with reversing also the high tree in
|
|
the parast, detected by tcalcst3 test
|
|
|
|
Revision 1.53 2002/04/21 19:02:04 peter
|
|
* removed newn and disposen nodes, the code is now directly
|
|
inlined from pexpr
|
|
* -an option that will write the secondpass nodes to the .s file, this
|
|
requires EXTDEBUG define to actually write the info
|
|
* fixed various internal errors and crashes due recent code changes
|
|
|
|
Revision 1.52 2002/04/20 21:32:24 carl
|
|
+ generic FPC_CHECKPOINTER
|
|
+ first parameter offset in stack now portable
|
|
* rename some constants
|
|
+ move some cpu stuff to other units
|
|
- remove unused constents
|
|
* fix stacksize for some targets
|
|
* fix generic size problems which depend now on EXTEND_SIZE constant
|
|
|
|
Revision 1.51 2002/04/20 15:27:05 carl
|
|
- remove ifdef i386 define
|
|
|
|
Revision 1.50 2002/04/19 15:46:02 peter
|
|
* mangledname rewrite, tprocdef.mangledname is now created dynamicly
|
|
in most cases and not written to the ppu
|
|
* add mangeledname_prefix() routine to generate the prefix of
|
|
manglednames depending on the current procedure, object and module
|
|
* removed static procprefix since the mangledname is now build only
|
|
on demand from tprocdef.mangledname
|
|
|
|
}
|