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2008 lines
78 KiB
ObjectPascal
2008 lines
78 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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This file implements the node for sub procedure calling
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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 ncal;
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{$i defines.inc}
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interface
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uses
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node,
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symbase,symtype,symsym,symdef,symtable;
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type
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tcallnode = class(tbinarynode)
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{ the symbol containing the definition of the procedure }
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{ to call }
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symtableprocentry : tprocsym;
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{ the symtable containing symtableprocentry }
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symtableproc : tsymtable;
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{ the definition of the procedure to call }
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procdefinition : tabstractprocdef;
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methodpointer : tnode;
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{ separately specified resulttype for some compilerprocs (e.g. }
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{ you can't have a function with an "array of char" resulttype }
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{ the RTL) (JM) }
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restype: ttype;
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restypeset: boolean;
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{ only the processor specific nodes need to override this }
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{ constructor }
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constructor create(l:tnode; v : tprocsym;st : tsymtable; mp : tnode);virtual;
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constructor createintern(const name: string; params: tnode);
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constructor createinternres(const name: string; params: tnode; const res: ttype);
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destructor destroy;override;
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function getcopy : tnode;override;
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procedure insertintolist(l : tnodelist);override;
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function pass_1 : tnode;override;
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function det_resulttype:tnode;override;
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function docompare(p: tnode): boolean; override;
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procedure set_procvar(procvar:tnode);
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end;
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tcallnodeclass = class of tcallnode;
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tcallparaflags = (
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{ flags used by tcallparanode }
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cpf_exact_match_found,
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cpf_convlevel1found,
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cpf_convlevel2found,
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cpf_is_colon_para
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);
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tcallparanode = class(tbinarynode)
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callparaflags : set of tcallparaflags;
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hightree : tnode;
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{ only the processor specific nodes need to override this }
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{ constructor }
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constructor create(expr,next : tnode);virtual;
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destructor destroy;override;
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function getcopy : tnode;override;
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procedure insertintolist(l : tnodelist);override;
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procedure gen_high_tree(openstring:boolean);
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procedure get_paratype;
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procedure insert_typeconv(defcoll : tparaitem;do_count : boolean);
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procedure det_registers;
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procedure firstcallparan(defcoll : tparaitem;do_count : boolean);
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procedure secondcallparan(defcoll : tparaitem;
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push_from_left_to_right,inlined,is_cdecl : boolean;
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para_alignment,para_offset : longint);virtual;abstract;
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function docompare(p: tnode): boolean; override;
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end;
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tcallparanodeclass = class of tcallparanode;
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tprocinlinenode = class(tnode)
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inlinetree : tnode;
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inlineprocdef : tprocdef;
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retoffset,para_offset,para_size : longint;
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constructor create(callp,code : tnode);virtual;
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destructor destroy;override;
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function getcopy : tnode;override;
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procedure insertintolist(l : tnodelist);override;
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function pass_1 : tnode;override;
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function docompare(p: tnode): boolean; override;
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end;
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tprocinlinenodeclass = class of tprocinlinenode;
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function reverseparameters(p: tcallparanode): tcallparanode;
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var
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ccallnode : tcallnodeclass;
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ccallparanode : tcallparanodeclass;
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cprocinlinenode : tprocinlinenodeclass;
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implementation
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uses
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cutils,globtype,systems,
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verbose,globals,
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symconst,types,
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htypechk,pass_1,cpubase,
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ncnv,nld,ninl,nadd,ncon,
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tgcpu,cgbase
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;
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{****************************************************************************
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HELPERS
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****************************************************************************}
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function reverseparameters(p: tcallparanode): tcallparanode;
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var
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hp1, hp2: tcallparanode;
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begin
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hp1:=nil;
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while assigned(p) do
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begin
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{ pull out }
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hp2:=p;
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p:=tcallparanode(p.right);
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{ pull in }
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hp2.right:=hp1;
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hp1:=hp2;
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end;
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reverseparameters:=hp1;
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end;
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procedure search_class_overloads(aprocsym : tprocsym);
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{ searches n in symtable of pd and all anchestors }
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var
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speedvalue : cardinal;
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srsym : tprocsym;
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s : string;
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found : boolean;
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srpdl,pdl : pprocdeflist;
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objdef : tobjectdef;
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begin
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if aprocsym.overloadchecked then
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exit;
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aprocsym.overloadchecked:=true;
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if (aprocsym.owner.symtabletype<>objectsymtable) then
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internalerror(200111021);
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objdef:=tobjectdef(aprocsym.owner.defowner);
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{ we start in the parent }
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if not assigned(objdef.childof) then
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exit;
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objdef:=objdef.childof;
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s:=aprocsym.name;
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speedvalue:=getspeedvalue(s);
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while assigned(objdef) do
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begin
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srsym:=tprocsym(objdef.symtable.speedsearch(s,speedvalue));
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if assigned(srsym) then
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begin
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if (srsym.typ<>procsym) then
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internalerror(200111022);
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if srsym.check_private then
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begin
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srpdl:=srsym.defs;
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while assigned(srpdl) do
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begin
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found:=false;
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pdl:=aprocsym.defs;
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while assigned(pdl) do
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begin
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if equal_paras(pdl^.def.para,srpdl^.def.para,cp_value_equal_const) then
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begin
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found:=true;
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break;
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end;
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pdl:=pdl^.next;
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end;
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if not found then
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aprocsym.addprocdef(srpdl^.def);
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srpdl:=srpdl^.next;
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end;
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{ we can stop if the overloads were already added
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for the found symbol }
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if srsym.overloadchecked then
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break;
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end;
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end;
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{ next parent }
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objdef:=objdef.childof;
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end;
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end;
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{****************************************************************************
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TCALLPARANODE
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****************************************************************************}
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constructor tcallparanode.create(expr,next : tnode);
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begin
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inherited create(callparan,expr,next);
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hightree:=nil;
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if assigned(expr) then
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expr.set_file_line(self);
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callparaflags:=[];
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end;
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destructor tcallparanode.destroy;
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begin
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hightree.free;
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inherited destroy;
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end;
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function tcallparanode.getcopy : tnode;
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var
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n : tcallparanode;
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begin
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n:=tcallparanode(inherited getcopy);
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n.callparaflags:=callparaflags;
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if assigned(hightree) then
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n.hightree:=hightree.getcopy
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else
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n.hightree:=nil;
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result:=n;
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end;
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procedure tcallparanode.insertintolist(l : tnodelist);
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begin
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end;
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procedure tcallparanode.get_paratype;
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var
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old_get_para_resulttype : boolean;
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old_array_constructor : boolean;
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begin
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inc(parsing_para_level);
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if assigned(right) then
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tcallparanode(right).get_paratype;
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old_array_constructor:=allow_array_constructor;
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old_get_para_resulttype:=get_para_resulttype;
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get_para_resulttype:=true;
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allow_array_constructor:=true;
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resulttypepass(left);
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get_para_resulttype:=old_get_para_resulttype;
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allow_array_constructor:=old_array_constructor;
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if codegenerror then
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resulttype:=generrortype
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else
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resulttype:=left.resulttype;
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dec(parsing_para_level);
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end;
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procedure tcallparanode.insert_typeconv(defcoll : tparaitem;do_count : boolean);
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var
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oldtype : ttype;
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{$ifdef extdebug}
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store_count_ref : boolean;
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{$endif def extdebug}
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begin
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inc(parsing_para_level);
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if not assigned(defcoll) then
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internalerror(200104261);
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{$ifdef extdebug}
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if do_count then
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begin
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store_count_ref:=count_ref;
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count_ref:=true;
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end;
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{$endif def extdebug}
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if assigned(right) then
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begin
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{ if we are a para that belongs to varargs then keep
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the current defcoll }
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if (nf_varargs_para in flags) then
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tcallparanode(right).insert_typeconv(defcoll,do_count)
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else
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tcallparanode(right).insert_typeconv(tparaitem(defcoll.next),do_count);
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end;
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{ Be sure to have the resulttype }
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if not assigned(left.resulttype.def) then
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resulttypepass(left);
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{ Handle varargs directly, no typeconvs or typechecking needed }
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if (nf_varargs_para in flags) then
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begin
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{ convert pascal to C types }
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case left.resulttype.def.deftype of
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stringdef :
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inserttypeconv(left,charpointertype);
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floatdef :
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inserttypeconv(left,s64floattype);
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end;
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set_varstate(left,true);
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resulttype:=left.resulttype;
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dec(parsing_para_level);
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exit;
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end;
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{ Do we need arrayconstructor -> set conversion, then insert
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it here before the arrayconstructor node breaks the tree
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with its conversions of enum->ord }
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if (left.nodetype=arrayconstructorn) and
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(defcoll.paratype.def.deftype=setdef) then
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inserttypeconv(left,defcoll.paratype);
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{ set some settings needed for arrayconstructor }
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if is_array_constructor(left.resulttype.def) then
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begin
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if is_array_of_const(defcoll.paratype.def) then
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begin
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if assigned(aktcallprocdef) and
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(aktcallprocdef.proccalloption in [pocall_cppdecl,pocall_cdecl]) and
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(po_external in aktcallprocdef.procoptions) then
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include(left.flags,nf_cargs);
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{ force variant array }
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include(left.flags,nf_forcevaria);
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end
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else
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begin
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include(left.flags,nf_novariaallowed);
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{ now that the resultting type is know we can insert the required
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typeconvs for the array constructor }
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tarrayconstructornode(left).force_type(tarraydef(defcoll.paratype.def).elementtype);
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end;
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end;
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{ check if local proc/func is assigned to procvar }
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if left.resulttype.def.deftype=procvardef then
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test_local_to_procvar(tprocvardef(left.resulttype.def),defcoll.paratype.def);
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{ generate the high() value tree }
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if not(assigned(aktcallprocdef) and
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(aktcallprocdef.proccalloption in [pocall_cppdecl,pocall_cdecl]) and
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(po_external in aktcallprocdef.procoptions)) and
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push_high_param(defcoll.paratype.def) then
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gen_high_tree(is_open_string(defcoll.paratype.def));
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{ test conversions }
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if not(is_shortstring(left.resulttype.def) and
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is_shortstring(defcoll.paratype.def)) and
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(defcoll.paratype.def.deftype<>formaldef) then
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begin
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if (defcoll.paratyp in [vs_var,vs_out]) and
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{ allows conversion from word to integer and
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byte to shortint, but only for TP7 compatibility }
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(not(
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(m_tp7 in aktmodeswitches) and
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(left.resulttype.def.deftype=orddef) and
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(defcoll.paratype.def.deftype=orddef) and
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(left.resulttype.def.size=defcoll.paratype.def.size)
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) and
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{ an implicit pointer conversion is allowed }
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not(
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(left.resulttype.def.deftype=pointerdef) and
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(defcoll.paratype.def.deftype=pointerdef)
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) and
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{ child classes can be also passed }
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not(
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(left.resulttype.def.deftype=objectdef) and
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(defcoll.paratype.def.deftype=objectdef) and
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tobjectdef(left.resulttype.def).is_related(tobjectdef(defcoll.paratype.def))
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) and
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{ passing a single element to a openarray of the same type }
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not(
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(is_open_array(defcoll.paratype.def) and
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is_equal(tarraydef(defcoll.paratype.def).elementtype.def,left.resulttype.def))
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) and
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{ an implicit file conversion is also allowed }
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{ from a typed file to an untyped one }
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not(
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(left.resulttype.def.deftype=filedef) and
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(defcoll.paratype.def.deftype=filedef) and
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(tfiledef(defcoll.paratype.def).filetyp = ft_untyped) and
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(tfiledef(left.resulttype.def).filetyp = ft_typed)
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) and
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not(is_equal(left.resulttype.def,defcoll.paratype.def))) then
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begin
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CGMessagePos2(left.fileinfo,parser_e_call_by_ref_without_typeconv,
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left.resulttype.def.typename,defcoll.paratype.def.typename);
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end;
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{ Process open parameters }
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if push_high_param(defcoll.paratype.def) then
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begin
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{ insert type conv but hold the ranges of the array }
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oldtype:=left.resulttype;
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inserttypeconv(left,defcoll.paratype);
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left.resulttype:=oldtype;
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end
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else
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begin
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inserttypeconv(left,defcoll.paratype);
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end;
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if codegenerror then
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begin
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dec(parsing_para_level);
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exit;
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end;
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end;
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{ check var strings }
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if (cs_strict_var_strings in aktlocalswitches) and
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is_shortstring(left.resulttype.def) and
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is_shortstring(defcoll.paratype.def) and
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(defcoll.paratyp in [vs_out,vs_var]) and
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not(is_open_string(defcoll.paratype.def)) and
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not(is_equal(left.resulttype.def,defcoll.paratype.def)) then
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begin
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aktfilepos:=left.fileinfo;
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CGMessage(type_e_strict_var_string_violation);
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end;
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{ Handle formal parameters separate }
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if (defcoll.paratype.def.deftype=formaldef) then
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begin
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case defcoll.paratyp of
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vs_var,
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vs_out :
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begin
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if not valid_for_formal_var(left) then
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CGMessagePos(left.fileinfo,parser_e_illegal_parameter_list);
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end;
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vs_const :
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begin
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if not valid_for_formal_const(left) then
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CGMessagePos(left.fileinfo,parser_e_illegal_parameter_list);
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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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{ check if the argument is allowed }
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if (defcoll.paratyp in [vs_out,vs_var]) then
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valid_for_var(left);
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end;
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if defcoll.paratyp in [vs_var,vs_const] then
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begin
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{ Causes problems with const ansistrings if also }
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{ done for vs_const (JM) }
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if defcoll.paratyp = vs_var then
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set_unique(left);
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make_not_regable(left);
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end;
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{ ansistrings out paramaters doesn't need to be }
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{ unique, they are finalized }
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if defcoll.paratyp=vs_out then
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make_not_regable(left);
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if do_count then
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begin
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{ not completly proper, but avoids some warnings }
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if (defcoll.paratyp in [vs_var,vs_out]) then
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set_funcret_is_valid(left);
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set_varstate(left,not(defcoll.paratyp in [vs_var,vs_out]));
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end;
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{ must only be done after typeconv PM }
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resulttype:=defcoll.paratype;
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dec(parsing_para_level);
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{$ifdef extdebug}
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if do_count then
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count_ref:=store_count_ref;
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{$endif def extdebug}
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end;
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procedure tcallparanode.det_registers;
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var
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old_get_para_resulttype : boolean;
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old_array_constructor : boolean;
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begin
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if assigned(right) then
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begin
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tcallparanode(right).det_registers;
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registers32:=right.registers32;
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registersfpu:=right.registersfpu;
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{$ifdef SUPPORT_MMX}
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registersmmx:=right.registersmmx;
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{$endif}
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end;
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old_array_constructor:=allow_array_constructor;
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old_get_para_resulttype:=get_para_resulttype;
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get_para_resulttype:=true;
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allow_array_constructor:=true;
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firstpass(left);
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get_para_resulttype:=old_get_para_resulttype;
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allow_array_constructor:=old_array_constructor;
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if left.registers32>registers32 then
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registers32:=left.registers32;
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if left.registersfpu>registersfpu then
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registersfpu:=left.registersfpu;
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{$ifdef SUPPORT_MMX}
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if left.registersmmx>registersmmx then
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registersmmx:=left.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
|
|
|
|
procedure tcallparanode.firstcallparan(defcoll : tparaitem;do_count : boolean);
|
|
begin
|
|
if not assigned(left.resulttype.def) then
|
|
begin
|
|
get_paratype;
|
|
if assigned(defcoll) then
|
|
insert_typeconv(defcoll,do_count);
|
|
end;
|
|
det_registers;
|
|
end;
|
|
|
|
|
|
procedure tcallparanode.gen_high_tree(openstring:boolean);
|
|
var
|
|
temp: tnode;
|
|
len : longint;
|
|
st : tsymtable;
|
|
loadconst : boolean;
|
|
srsym : tsym;
|
|
begin
|
|
if assigned(hightree) then
|
|
exit;
|
|
len:=-1;
|
|
loadconst:=true;
|
|
case left.resulttype.def.deftype of
|
|
arraydef :
|
|
begin
|
|
{ handle via a normal inline in_high_x node }
|
|
loadconst := false;
|
|
hightree := geninlinenode(in_high_x,false,left.getcopy);
|
|
{ only substract low(array) if it's <> 0 }
|
|
temp := geninlinenode(in_low_x,false,left.getcopy);
|
|
firstpass(temp);
|
|
if (temp.nodetype <> ordconstn) or
|
|
(tordconstnode(temp).value <> 0) then
|
|
hightree := caddnode.create(subn,hightree,temp)
|
|
else
|
|
temp.free;
|
|
end;
|
|
stringdef :
|
|
begin
|
|
if openstring then
|
|
begin
|
|
{ handle via a normal inline in_high_x node }
|
|
loadconst := false;
|
|
hightree := geninlinenode(in_high_x,false,left.getcopy);
|
|
end
|
|
else
|
|
{ passing a string to an array of char }
|
|
begin
|
|
if (left.nodetype=stringconstn) then
|
|
begin
|
|
len:=str_length(left);
|
|
if len>0 then
|
|
dec(len);
|
|
end
|
|
else
|
|
begin
|
|
hightree:=caddnode.create(subn,geninlinenode(in_length_x,false,left.getcopy),
|
|
cordconstnode.create(1,s32bittype));
|
|
loadconst:=false;
|
|
end;
|
|
end;
|
|
end;
|
|
else
|
|
len:=0;
|
|
end;
|
|
if loadconst then
|
|
hightree:=cordconstnode.create(len,s32bittype)
|
|
else
|
|
hightree:=ctypeconvnode.create(hightree,s32bittype);
|
|
firstpass(hightree);
|
|
end;
|
|
|
|
|
|
function tcallparanode.docompare(p: tnode): boolean;
|
|
begin
|
|
docompare :=
|
|
inherited docompare(p) and
|
|
(callparaflags = tcallparanode(p).callparaflags) and
|
|
hightree.isequal(tcallparanode(p).hightree);
|
|
end;
|
|
|
|
{****************************************************************************
|
|
TCALLNODE
|
|
****************************************************************************}
|
|
|
|
constructor tcallnode.create(l:tnode;v : tprocsym;st : tsymtable; mp : tnode);
|
|
|
|
begin
|
|
inherited create(calln,l,nil);
|
|
symtableprocentry:=v;
|
|
symtableproc:=st;
|
|
include(flags,nf_return_value_used);
|
|
methodpointer:=mp;
|
|
procdefinition:=nil;
|
|
restypeset := false;
|
|
end;
|
|
|
|
constructor tcallnode.createintern(const name: string; params: tnode);
|
|
var
|
|
srsym: tsym;
|
|
symowner: tsymtable;
|
|
begin
|
|
if not (cs_compilesystem in aktmoduleswitches) then
|
|
begin
|
|
srsym := searchsymonlyin(systemunit,name);
|
|
symowner := systemunit;
|
|
end
|
|
else
|
|
begin
|
|
searchsym(name,srsym,symowner);
|
|
if not assigned(srsym) then
|
|
searchsym(upper(name),srsym,symowner);
|
|
end;
|
|
if not assigned(srsym) or
|
|
(srsym.typ <> procsym) then
|
|
begin
|
|
writeln('unknown compilerproc ',name);
|
|
internalerror(200107271);
|
|
end;
|
|
self.create(params,tprocsym(srsym),symowner,nil);
|
|
end;
|
|
|
|
constructor tcallnode.createinternres(const name: string; params: tnode; const res: ttype);
|
|
begin
|
|
self.createintern(name,params);
|
|
restype := res;
|
|
restypeset := true;
|
|
{ both the normal and specified resulttype either have to be returned via a }
|
|
{ parameter or not, but no mixing (JM) }
|
|
if ret_in_param(restype.def) xor ret_in_param(symtableprocentry.defs^.def.rettype.def) then
|
|
internalerror(200108291);
|
|
end;
|
|
|
|
|
|
destructor tcallnode.destroy;
|
|
begin
|
|
methodpointer.free;
|
|
inherited destroy;
|
|
end;
|
|
|
|
|
|
procedure tcallnode.set_procvar(procvar:tnode);
|
|
begin
|
|
right:=procvar;
|
|
end;
|
|
|
|
function tcallnode.getcopy : tnode;
|
|
var
|
|
n : tcallnode;
|
|
begin
|
|
n:=tcallnode(inherited getcopy);
|
|
n.symtableprocentry:=symtableprocentry;
|
|
n.symtableproc:=symtableproc;
|
|
n.procdefinition:=procdefinition;
|
|
n.restype := restype;
|
|
n.restypeset := restypeset;
|
|
if assigned(methodpointer) then
|
|
n.methodpointer:=methodpointer.getcopy
|
|
else
|
|
n.methodpointer:=nil;
|
|
result:=n;
|
|
end;
|
|
|
|
procedure tcallnode.insertintolist(l : tnodelist);
|
|
|
|
begin
|
|
end;
|
|
|
|
|
|
function tcallnode.det_resulttype:tnode;
|
|
type
|
|
pprocdefcoll = ^tprocdefcoll;
|
|
tprocdefcoll = record
|
|
data : tprocdef;
|
|
nextpara : tparaitem;
|
|
firstpara : tparaitem;
|
|
next : pprocdefcoll;
|
|
end;
|
|
var
|
|
hp,procs,hp2 : pprocdefcoll;
|
|
pd : pprocdeflist;
|
|
oldcallprocdef : tprocdef;
|
|
def_from,def_to,conv_to : tdef;
|
|
hpt : tnode;
|
|
pt : tcallparanode;
|
|
exactmatch : boolean;
|
|
paralength,lastpara : longint;
|
|
lastparatype : tdef;
|
|
pdc : tparaitem;
|
|
{ only Dummy }
|
|
hcvt : tconverttype;
|
|
label
|
|
errorexit;
|
|
|
|
{ check if the resulttype.def from tree p is equal with def, needed
|
|
for stringconstn and formaldef }
|
|
function is_equal(p:tcallparanode;def:tdef) : boolean;
|
|
|
|
begin
|
|
{ safety check }
|
|
if not (assigned(def) or assigned(p.resulttype.def)) then
|
|
begin
|
|
is_equal:=false;
|
|
exit;
|
|
end;
|
|
{ all types can be passed to a formaldef }
|
|
is_equal:=(def.deftype=formaldef) or
|
|
(types.is_equal(p.resulttype.def,def))
|
|
{ integer constants are compatible with all integer parameters if
|
|
the specified value matches the range }
|
|
or
|
|
(
|
|
(tbinarynode(p).left.nodetype=ordconstn) and
|
|
is_integer(p.resulttype.def) and
|
|
is_integer(def) and
|
|
(tordconstnode(p.left).value>=torddef(def).low) and
|
|
(tordconstnode(p.left).value<=torddef(def).high)
|
|
)
|
|
{ to support ansi/long/wide strings in a proper way }
|
|
{ string and string[10] are assumed as equal }
|
|
{ when searching the correct overloaded procedure }
|
|
or
|
|
(
|
|
(def.deftype=stringdef) and (p.resulttype.def.deftype=stringdef) and
|
|
(tstringdef(def).string_typ=tstringdef(p.resulttype.def).string_typ)
|
|
)
|
|
or
|
|
(
|
|
(p.left.nodetype=stringconstn) and
|
|
(is_ansistring(p.resulttype.def) and is_pchar(def))
|
|
)
|
|
or
|
|
(
|
|
(p.left.nodetype=ordconstn) and
|
|
(is_char(p.resulttype.def) and (is_shortstring(def) or is_ansistring(def)))
|
|
)
|
|
{ set can also be a not yet converted array constructor }
|
|
or
|
|
(
|
|
(def.deftype=setdef) and (p.resulttype.def.deftype=arraydef) and
|
|
(tarraydef(p.resulttype.def).IsConstructor) and not(tarraydef(p.resulttype.def).IsVariant)
|
|
)
|
|
{ in tp7 mode proc -> procvar is allowed }
|
|
or
|
|
(
|
|
(m_tp_procvar in aktmodeswitches) and
|
|
(def.deftype=procvardef) and (p.left.nodetype=calln) and
|
|
(proc_to_procvar_equal(tprocdef(tcallnode(p.left).procdefinition),tprocvardef(def),false))
|
|
)
|
|
;
|
|
end;
|
|
|
|
function is_in_limit(def_from,def_to : tdef) : boolean;
|
|
|
|
begin
|
|
is_in_limit:=(def_from.deftype = orddef) and
|
|
(def_to.deftype = orddef) and
|
|
(torddef(def_from).low>torddef(def_to).low) and
|
|
(torddef(def_from).high<torddef(def_to).high);
|
|
end;
|
|
|
|
var
|
|
i : longint;
|
|
is_const : boolean;
|
|
bestord : torddef;
|
|
begin
|
|
result:=nil;
|
|
|
|
procs:=nil;
|
|
|
|
oldcallprocdef:=aktcallprocdef;
|
|
aktcallprocdef:=nil;
|
|
|
|
{ determine length of parameter list }
|
|
pt:=tcallparanode(left);
|
|
paralength:=0;
|
|
while assigned(pt) do
|
|
begin
|
|
inc(paralength);
|
|
pt:=tcallparanode(pt.right);
|
|
end;
|
|
|
|
{ determine the type of the parameters }
|
|
if assigned(left) then
|
|
begin
|
|
tcallparanode(left).get_paratype;
|
|
if codegenerror then
|
|
goto errorexit;
|
|
end;
|
|
|
|
{ procedure variable ? }
|
|
if assigned(right) then
|
|
begin
|
|
set_varstate(right,true);
|
|
resulttypepass(right);
|
|
if codegenerror then
|
|
exit;
|
|
|
|
procdefinition:=tabstractprocdef(right.resulttype.def);
|
|
|
|
{ check the amount of parameters }
|
|
pdc:=tparaitem(procdefinition.Para.first);
|
|
pt:=tcallparanode(left);
|
|
lastpara:=paralength;
|
|
while assigned(pdc) and assigned(pt) do
|
|
begin
|
|
{ only goto next para if we're out of the varargs }
|
|
if not(po_varargs in procdefinition.procoptions) or
|
|
(lastpara<=procdefinition.maxparacount) then
|
|
pdc:=tparaitem(pdc.next);
|
|
pt:=tcallparanode(pt.right);
|
|
dec(lastpara);
|
|
end;
|
|
if assigned(pt) or assigned(pdc) then
|
|
begin
|
|
if assigned(pt) then
|
|
aktfilepos:=pt.fileinfo;
|
|
CGMessage(parser_e_wrong_parameter_size);
|
|
end;
|
|
end
|
|
else
|
|
{ not a procedure variable }
|
|
begin
|
|
{ do we know the procedure to call ? }
|
|
if not(assigned(procdefinition)) then
|
|
begin
|
|
{ when the definition has overload directive set, we search for
|
|
overloaded definitions }
|
|
if (not symtableprocentry.overloadchecked) and
|
|
(po_overload in symtableprocentry.defs^.def.procoptions) then
|
|
begin
|
|
{ for methods search in the class tree }
|
|
if (symtableprocentry.owner.symtabletype=objectsymtable) then
|
|
search_class_overloads(symtableprocentry);
|
|
end;
|
|
|
|
{ link all procedures which have the same # of parameters }
|
|
pd:=symtableprocentry.defs;
|
|
while assigned(pd) do
|
|
begin
|
|
{ only when the # of parameter are supported by the
|
|
procedure }
|
|
if (paralength>=pd^.def.minparacount) and
|
|
((po_varargs in pd^.def.procoptions) or { varargs }
|
|
(paralength<=pd^.def.maxparacount)) then
|
|
begin
|
|
new(hp);
|
|
hp^.data:=pd^.def;
|
|
hp^.next:=procs;
|
|
hp^.firstpara:=tparaitem(pd^.def.Para.first);
|
|
if not(po_varargs in pd^.def.procoptions) then
|
|
begin
|
|
{ if not all parameters are given, then skip the
|
|
default parameters }
|
|
for i:=1 to pd^.def.maxparacount-paralength do
|
|
hp^.firstpara:=tparaitem(hp^.firstPara.next);
|
|
end;
|
|
hp^.nextpara:=hp^.firstpara;
|
|
procs:=hp;
|
|
end;
|
|
pd:=pd^.next;
|
|
end;
|
|
|
|
{ no procedures found? then there is something wrong
|
|
with the parameter size }
|
|
if not assigned(procs) then
|
|
begin
|
|
{ in tp mode we can try to convert to procvar if
|
|
there are no parameters specified }
|
|
if not(assigned(left)) and
|
|
(m_tp_procvar in aktmodeswitches) then
|
|
begin
|
|
hpt:=cloadnode.create(tprocsym(symtableprocentry),symtableproc);
|
|
if (symtableprocentry.owner.symtabletype=objectsymtable) and
|
|
assigned(methodpointer) then
|
|
tloadnode(hpt).set_mp(methodpointer.getcopy);
|
|
resulttypepass(hpt);
|
|
result:=hpt;
|
|
end
|
|
else
|
|
begin
|
|
if assigned(left) then
|
|
aktfilepos:=left.fileinfo;
|
|
CGMessage(parser_e_wrong_parameter_size);
|
|
symtableprocentry.write_parameter_lists(nil);
|
|
end;
|
|
goto errorexit;
|
|
end;
|
|
|
|
{ now we can compare parameter after parameter }
|
|
pt:=tcallparanode(left);
|
|
{ we start with the last parameter }
|
|
lastpara:=paralength+1;
|
|
lastparatype:=nil;
|
|
while assigned(pt) do
|
|
begin
|
|
dec(lastpara);
|
|
{ walk all procedures and determine how this parameter matches and set:
|
|
1. pt.exact_match_found if one parameter has an exact match
|
|
2. exactmatch if an equal or exact match is found
|
|
|
|
3. Para.argconvtyp to exact,equal or convertable
|
|
(when convertable then also convertlevel is set)
|
|
4. pt.convlevel1found if there is a convertlevel=1
|
|
5. pt.convlevel2found if there is a convertlevel=2
|
|
}
|
|
exactmatch:=false;
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
{ varargs are always equal, but not exact }
|
|
if (po_varargs in hp^.data.procoptions) and
|
|
(lastpara>hp^.data.minparacount) then
|
|
begin
|
|
hp^.nextPara.argconvtyp:=act_equal;
|
|
exactmatch:=true;
|
|
end
|
|
else
|
|
begin
|
|
if is_equal(pt,hp^.nextPara.paratype.def) then
|
|
begin
|
|
if hp^.nextPara.paratype.def=pt.resulttype.def then
|
|
begin
|
|
include(pt.callparaflags,cpf_exact_match_found);
|
|
hp^.nextPara.argconvtyp:=act_exact;
|
|
end
|
|
else
|
|
hp^.nextPara.argconvtyp:=act_equal;
|
|
exactmatch:=true;
|
|
end
|
|
else
|
|
begin
|
|
hp^.nextPara.argconvtyp:=act_convertable;
|
|
hp^.nextPara.convertlevel:=isconvertable(pt.resulttype.def,hp^.nextPara.paratype.def,
|
|
hcvt,pt.left.nodetype,false);
|
|
case hp^.nextPara.convertlevel of
|
|
1 : include(pt.callparaflags,cpf_convlevel1found);
|
|
2 : include(pt.callparaflags,cpf_convlevel2found);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
hp:=hp^.next;
|
|
end;
|
|
|
|
{ If there was an exactmatch then delete all convertables }
|
|
if exactmatch then
|
|
begin
|
|
hp:=procs;
|
|
procs:=nil;
|
|
while assigned(hp) do
|
|
begin
|
|
hp2:=hp^.next;
|
|
{ keep if not convertable }
|
|
if (hp^.nextPara.argconvtyp<>act_convertable) then
|
|
begin
|
|
hp^.next:=procs;
|
|
procs:=hp;
|
|
end
|
|
else
|
|
dispose(hp);
|
|
hp:=hp2;
|
|
end;
|
|
end
|
|
else
|
|
{ No exact match was found, remove all procedures that are
|
|
not convertable (convertlevel=0) }
|
|
begin
|
|
hp:=procs;
|
|
procs:=nil;
|
|
while assigned(hp) do
|
|
begin
|
|
hp2:=hp^.next;
|
|
{ keep if not convertable }
|
|
if (hp^.nextPara.convertlevel<>0) then
|
|
begin
|
|
hp^.next:=procs;
|
|
procs:=hp;
|
|
end
|
|
else
|
|
begin
|
|
{ save the type for nice error message }
|
|
lastparatype:=hp^.nextPara.paratype.def;
|
|
dispose(hp);
|
|
end;
|
|
hp:=hp2;
|
|
end;
|
|
end;
|
|
{ update nextpara for all procedures }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
{ only goto next para if we're out of the varargs }
|
|
if not(po_varargs in hp^.data.procoptions) or
|
|
(lastpara<=hp^.data.maxparacount) then
|
|
hp^.nextpara:=tparaitem(hp^.nextPara.next);
|
|
hp:=hp^.next;
|
|
end;
|
|
{ load next parameter or quit loop if no procs left }
|
|
if assigned(procs) then
|
|
pt:=tcallparanode(pt.right)
|
|
else
|
|
break;
|
|
end;
|
|
|
|
{ All parameters are checked, check if there are any
|
|
procedures left }
|
|
if not assigned(procs) then
|
|
begin
|
|
{ there is an error, must be wrong type, because
|
|
wrong size is already checked (PFV) }
|
|
if (not assigned(lastparatype)) or
|
|
(not assigned(pt)) or
|
|
(not assigned(pt.resulttype.def)) then
|
|
internalerror(39393)
|
|
else
|
|
begin
|
|
aktfilepos:=pt.fileinfo;
|
|
CGMessage3(type_e_wrong_parameter_type,tostr(lastpara),
|
|
pt.resulttype.def.typename,lastparatype.typename);
|
|
end;
|
|
symtableprocentry.write_parameter_lists(nil);
|
|
goto errorexit;
|
|
end;
|
|
|
|
{ if there are several choices left then for orddef }
|
|
{ if a type is totally included in the other }
|
|
{ we don't fear an overflow , }
|
|
{ so we can do as if it is an exact match }
|
|
{ this will convert integer to longint }
|
|
{ rather than to words }
|
|
{ conversion of byte to integer or longint }
|
|
{ would still not be solved }
|
|
if assigned(procs) and assigned(procs^.next) then
|
|
begin
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=hp^.firstpara;
|
|
hp:=hp^.next;
|
|
end;
|
|
pt:=tcallparanode(left);
|
|
while assigned(pt) do
|
|
begin
|
|
{ matches a parameter of one procedure exact ? }
|
|
exactmatch:=false;
|
|
def_from:=pt.resulttype.def;
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
if not is_equal(pt,hp^.nextPara.paratype.def) then
|
|
begin
|
|
def_to:=hp^.nextPara.paratype.def;
|
|
if ((def_from.deftype=orddef) and (def_to.deftype=orddef)) and
|
|
(is_in_limit(def_from,def_to) or
|
|
((hp^.nextPara.paratyp in [vs_var,vs_out]) and
|
|
(def_from.size=def_to.size))) then
|
|
begin
|
|
exactmatch:=true;
|
|
conv_to:=def_to;
|
|
end;
|
|
end;
|
|
hp:=hp^.next;
|
|
end;
|
|
|
|
{ .... if yes, del all the other procedures }
|
|
if exactmatch then
|
|
begin
|
|
{ the first .... }
|
|
while (assigned(procs)) and not(is_in_limit(def_from,procs^.nextPara.paratype.def)) do
|
|
begin
|
|
hp:=procs^.next;
|
|
dispose(procs);
|
|
procs:=hp;
|
|
end;
|
|
{ and the others }
|
|
hp:=procs;
|
|
while (assigned(hp)) and assigned(hp^.next) do
|
|
begin
|
|
if not(is_in_limit(def_from,hp^.next^.nextPara.paratype.def)) then
|
|
begin
|
|
hp2:=hp^.next^.next;
|
|
dispose(hp^.next);
|
|
hp^.next:=hp2;
|
|
end
|
|
else
|
|
begin
|
|
def_to:=hp^.next^.nextPara.paratype.def;
|
|
if (conv_to.size>def_to.size) or
|
|
((torddef(conv_to).low<torddef(def_to).low) and
|
|
(torddef(conv_to).high>torddef(def_to).high)) then
|
|
begin
|
|
hp2:=procs;
|
|
procs:=hp;
|
|
conv_to:=def_to;
|
|
dispose(hp2);
|
|
end
|
|
else
|
|
hp:=hp^.next;
|
|
end;
|
|
end;
|
|
end;
|
|
{ update nextpara for all procedures }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=tparaitem(hp^.nextPara.next);
|
|
hp:=hp^.next;
|
|
end;
|
|
pt:=tcallparanode(pt.right);
|
|
end;
|
|
end;
|
|
|
|
{ let's try to eliminate equal if there is an exact match
|
|
is there }
|
|
if assigned(procs) and assigned(procs^.next) then
|
|
begin
|
|
{ reset nextpara for all procs left }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=hp^.firstpara;
|
|
hp:=hp^.next;
|
|
end;
|
|
|
|
pt:=tcallparanode(left);
|
|
while assigned(pt) do
|
|
begin
|
|
if cpf_exact_match_found in pt.callparaflags then
|
|
begin
|
|
hp:=procs;
|
|
procs:=nil;
|
|
while assigned(hp) do
|
|
begin
|
|
hp2:=hp^.next;
|
|
{ keep the exact matches, dispose the others }
|
|
if (hp^.nextPara.argconvtyp=act_exact) then
|
|
begin
|
|
hp^.next:=procs;
|
|
procs:=hp;
|
|
end
|
|
else
|
|
dispose(hp);
|
|
hp:=hp2;
|
|
end;
|
|
end;
|
|
{ update nextpara for all procedures }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=tparaitem(hp^.nextPara.next);
|
|
hp:=hp^.next;
|
|
end;
|
|
pt:=tcallparanode(pt.right);
|
|
end;
|
|
end;
|
|
|
|
{ Check if there are integer constant to integer
|
|
parameters then choose the best matching integer
|
|
parameter and remove the others, this is Delphi
|
|
compatible. 1 = byte, 256 = word, etc. }
|
|
if assigned(procs) and assigned(procs^.next) then
|
|
begin
|
|
{ reset nextpara for all procs left }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=hp^.firstpara;
|
|
hp:=hp^.next;
|
|
end;
|
|
|
|
pt:=tcallparanode(left);
|
|
while assigned(pt) do
|
|
begin
|
|
bestord:=nil;
|
|
if (pt.left.nodetype=ordconstn) and
|
|
is_integer(pt.resulttype.def) then
|
|
begin
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
def_to:=hp^.nextPara.paratype.def;
|
|
{ to be sure, it couldn't be something else,
|
|
also the defs here are all in the range
|
|
so now find the closest range }
|
|
if not is_integer(def_to) then
|
|
internalerror(43297815);
|
|
if (not assigned(bestord)) or
|
|
((torddef(def_to).low>bestord.low) or
|
|
(torddef(def_to).high<bestord.high)) then
|
|
bestord:=torddef(def_to);
|
|
hp:=hp^.next;
|
|
end;
|
|
end;
|
|
{ if a bestmatch is found then remove the other
|
|
procs which don't match the bestord }
|
|
if assigned(bestord) then
|
|
begin
|
|
hp:=procs;
|
|
procs:=nil;
|
|
while assigned(hp) do
|
|
begin
|
|
hp2:=hp^.next;
|
|
{ keep matching bestord, dispose the others }
|
|
if (torddef(hp^.nextPara.paratype.def)=bestord) then
|
|
begin
|
|
hp^.next:=procs;
|
|
procs:=hp;
|
|
end
|
|
else
|
|
dispose(hp);
|
|
hp:=hp2;
|
|
end;
|
|
end;
|
|
|
|
{ update nextpara for all procedures }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=tparaitem(hp^.nextPara.next);
|
|
hp:=hp^.next;
|
|
end;
|
|
pt:=tcallparanode(pt.right);
|
|
end;
|
|
end;
|
|
|
|
{ Check if there are convertlevel 1 and 2 differences
|
|
left for the parameters, then discard all convertlevel
|
|
2 procedures. The value of convlevelXfound can still
|
|
be used, because all convertables are still here or
|
|
not }
|
|
if assigned(procs) and assigned(procs^.next) then
|
|
begin
|
|
{ reset nextpara for all procs left }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=hp^.firstpara;
|
|
hp:=hp^.next;
|
|
end;
|
|
|
|
pt:=tcallparanode(left);
|
|
while assigned(pt) do
|
|
begin
|
|
if (cpf_convlevel1found in pt.callparaflags) and
|
|
(cpf_convlevel2found in pt.callparaflags) then
|
|
begin
|
|
hp:=procs;
|
|
procs:=nil;
|
|
while assigned(hp) do
|
|
begin
|
|
hp2:=hp^.next;
|
|
{ keep all not act_convertable and all convertlevels=1 }
|
|
if (hp^.nextPara.argconvtyp<>act_convertable) or
|
|
(hp^.nextPara.convertlevel=1) then
|
|
begin
|
|
hp^.next:=procs;
|
|
procs:=hp;
|
|
end
|
|
else
|
|
dispose(hp);
|
|
hp:=hp2;
|
|
end;
|
|
end;
|
|
{ update nextpara for all procedures }
|
|
hp:=procs;
|
|
while assigned(hp) do
|
|
begin
|
|
hp^.nextpara:=tparaitem(hp^.nextPara.next);
|
|
hp:=hp^.next;
|
|
end;
|
|
pt:=tcallparanode(pt.right);
|
|
end;
|
|
end;
|
|
|
|
if not(assigned(procs)) or assigned(procs^.next) then
|
|
begin
|
|
CGMessage(cg_e_cant_choose_overload_function);
|
|
symtableprocentry.write_parameter_lists(nil);
|
|
goto errorexit;
|
|
end;
|
|
if make_ref then
|
|
begin
|
|
procs^.data.lastref:=tref.create(procs^.data.lastref,@fileinfo);
|
|
inc(procs^.data.refcount);
|
|
if procs^.data.defref=nil then
|
|
procs^.data.defref:=procs^.data.lastref;
|
|
end;
|
|
|
|
procdefinition:=procs^.data;
|
|
{ big error for with statements
|
|
symtableproc:=procdefinition.owner;
|
|
but neede for overloaded operators !! }
|
|
if symtableproc=nil then
|
|
symtableproc:=procdefinition.owner;
|
|
end; { end of procedure to call determination }
|
|
|
|
|
|
{ add needed default parameters }
|
|
if assigned(procs) and
|
|
(paralength<procdefinition.maxparacount) then
|
|
begin
|
|
{ add default parameters, just read back the skipped
|
|
paras starting from firstPara.previous, when not available
|
|
(all parameters are default) then start with the last
|
|
parameter and read backward (PFV) }
|
|
if not assigned(procs^.firstpara) then
|
|
pdc:=tparaitem(procs^.data.Para.last)
|
|
else
|
|
pdc:=tparaitem(procs^.firstPara.previous);
|
|
while assigned(pdc) do
|
|
begin
|
|
if not assigned(pdc.defaultvalue) then
|
|
internalerror(751349858);
|
|
left:=ccallparanode.create(genconstsymtree(tconstsym(pdc.defaultvalue)),left);
|
|
pdc:=tparaitem(pdc.previous);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ handle predefined procedures }
|
|
is_const:=(procdefinition.proccalloption=pocall_internconst) and
|
|
((block_type in [bt_const,bt_type]) or
|
|
(assigned(left) and (tcallparanode(left).left.nodetype in [realconstn,ordconstn])));
|
|
if (procdefinition.proccalloption=pocall_internproc) or is_const then
|
|
begin
|
|
if assigned(left) then
|
|
begin
|
|
{ ptr and settextbuf needs two args }
|
|
if assigned(tcallparanode(left).right) then
|
|
begin
|
|
hpt:=geninlinenode(tprocdef(procdefinition).extnumber,is_const,left);
|
|
left:=nil;
|
|
end
|
|
else
|
|
begin
|
|
hpt:=geninlinenode(tprocdef(procdefinition).extnumber,is_const,tcallparanode(left).left);
|
|
tcallparanode(left).left:=nil;
|
|
end;
|
|
end
|
|
else
|
|
hpt:=geninlinenode(tprocdef(procdefinition).extnumber,is_const,nil);
|
|
result:=hpt;
|
|
goto errorexit;
|
|
end;
|
|
|
|
{ Calling a message method directly ? }
|
|
if assigned(procdefinition) and
|
|
(po_containsself in procdefinition.procoptions) then
|
|
message(cg_e_cannot_call_message_direct);
|
|
|
|
{ ensure that the result type is set }
|
|
if not restypeset then
|
|
resulttype:=procdefinition.rettype
|
|
else
|
|
resulttype:=restype;
|
|
|
|
{ get a register for the return value }
|
|
if (not is_void(resulttype.def)) then
|
|
begin
|
|
if ret_in_acc(resulttype.def) then
|
|
begin
|
|
{ wide- and ansistrings are returned in EAX }
|
|
{ but they are imm. moved to a memory location }
|
|
if is_widestring(resulttype.def) or
|
|
is_ansistring(resulttype.def) then
|
|
begin
|
|
{ we use ansistrings so no fast exit here }
|
|
procinfo^.no_fast_exit:=true;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{ constructors return their current class type, not the type where the
|
|
constructor is declared, this can be different because of inheritance }
|
|
if (procdefinition.proctypeoption=potype_constructor) then
|
|
begin
|
|
if assigned(methodpointer) and
|
|
assigned(methodpointer.resulttype.def) and
|
|
(methodpointer.resulttype.def.deftype=classrefdef) then
|
|
resulttype:=tclassrefdef(methodpointer.resulttype.def).pointertype;
|
|
end;
|
|
|
|
{ flag all callparanodes that belong to the varargs }
|
|
if (po_varargs in procdefinition.procoptions) then
|
|
begin
|
|
pt:=tcallparanode(left);
|
|
i:=paralength;
|
|
while (i>procdefinition.maxparacount) do
|
|
begin
|
|
include(tcallparanode(pt).flags,nf_varargs_para);
|
|
pt:=tcallparanode(pt.right);
|
|
dec(i);
|
|
end;
|
|
end;
|
|
|
|
{ insert type conversions }
|
|
if assigned(left) then
|
|
begin
|
|
aktcallprocdef:=tprocdef(procdefinition);
|
|
tcallparanode(left).insert_typeconv(tparaitem(procdefinition.Para.first),true);
|
|
end;
|
|
|
|
errorexit:
|
|
{ Reset some settings back }
|
|
if assigned(procs) then
|
|
dispose(procs);
|
|
aktcallprocdef:=oldcallprocdef;
|
|
end;
|
|
|
|
|
|
function tcallnode.pass_1 : tnode;
|
|
var
|
|
inlinecode : tnode;
|
|
inlined : boolean;
|
|
{$ifdef m68k}
|
|
regi : tregister;
|
|
{$endif}
|
|
method_must_be_valid : boolean;
|
|
label
|
|
errorexit;
|
|
begin
|
|
result:=nil;
|
|
inlined:=false;
|
|
|
|
{ work trough all parameters to get the register requirements }
|
|
if assigned(left) then
|
|
tcallparanode(left).det_registers;
|
|
|
|
if assigned(procdefinition) and
|
|
(procdefinition.proccalloption=pocall_inline) then
|
|
begin
|
|
inlinecode:=right;
|
|
if assigned(inlinecode) then
|
|
inlined:=true;
|
|
right:=nil;
|
|
end;
|
|
|
|
{ procedure variable ? }
|
|
if assigned(right) then
|
|
begin
|
|
firstpass(right);
|
|
|
|
{ procedure does a call }
|
|
if not (block_type in [bt_const,bt_type]) then
|
|
procinfo^.flags:=procinfo^.flags or pi_do_call;
|
|
{$ifndef newcg}
|
|
{ calc the correct value for the register }
|
|
{$ifdef i386}
|
|
incrementregisterpushed($ff);
|
|
{$else}
|
|
incrementregisterpushed(ALL_REGISTERS);
|
|
{$endif}
|
|
{$endif newcg}
|
|
end
|
|
else
|
|
{ not a procedure variable }
|
|
begin
|
|
location.loc:=LOC_MEM;
|
|
|
|
{ calc the correture value for the register }
|
|
{ handle predefined procedures }
|
|
if (procdefinition.proccalloption=pocall_inline) then
|
|
begin
|
|
if assigned(methodpointer) then
|
|
CGMessage(cg_e_unable_inline_object_methods);
|
|
if assigned(right) and (right.nodetype<>procinlinen) then
|
|
CGMessage(cg_e_unable_inline_procvar);
|
|
{ nodetype:=procinlinen; }
|
|
if not assigned(right) then
|
|
begin
|
|
if assigned(tprocdef(procdefinition).code) then
|
|
inlinecode:=cprocinlinenode.create(self,tnode(tprocdef(procdefinition).code))
|
|
else
|
|
CGMessage(cg_e_no_code_for_inline_stored);
|
|
if assigned(inlinecode) then
|
|
begin
|
|
{ consider it has not inlined if called
|
|
again inside the args }
|
|
procdefinition.proccalloption:=pocall_fpccall;
|
|
firstpass(inlinecode);
|
|
inlined:=true;
|
|
end;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if not (block_type in [bt_const,bt_type]) then
|
|
procinfo^.flags:=procinfo^.flags or pi_do_call;
|
|
end;
|
|
|
|
{$ifndef newcg}
|
|
{$ifndef POWERPC}
|
|
{ for the PowerPC standard calling conventions this information isn't necassary (FK) }
|
|
incrementregisterpushed(tprocdef(procdefinition).usedregisters);
|
|
{$endif POWERPC}
|
|
{$endif newcg}
|
|
end;
|
|
|
|
{ get a register for the return value }
|
|
if (not is_void(resulttype.def)) then
|
|
begin
|
|
if (procdefinition.proctypeoption=potype_constructor) then
|
|
begin
|
|
{ extra handling of classes }
|
|
{ methodpointer should be assigned! }
|
|
if assigned(methodpointer) and
|
|
assigned(methodpointer.resulttype.def) and
|
|
(methodpointer.resulttype.def.deftype=classrefdef) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
registers32:=1;
|
|
end
|
|
{ a object constructor returns the result with the flags }
|
|
else
|
|
location.loc:=LOC_FLAGS;
|
|
end
|
|
else
|
|
begin
|
|
{$ifdef SUPPORT_MMX}
|
|
if (cs_mmx in aktlocalswitches) and
|
|
is_mmx_able_array(resulttype.def) then
|
|
begin
|
|
location.loc:=LOC_MMXREGISTER;
|
|
registersmmx:=1;
|
|
end
|
|
else
|
|
{$endif SUPPORT_MMX}
|
|
if ret_in_acc(resulttype.def) then
|
|
begin
|
|
location.loc:=LOC_REGISTER;
|
|
if is_64bitint(resulttype.def) then
|
|
registers32:=2
|
|
else
|
|
registers32:=1;
|
|
|
|
{ wide- and ansistrings are returned in EAX }
|
|
{ but they are imm. moved to a memory location }
|
|
if is_widestring(resulttype.def) or
|
|
is_ansistring(resulttype.def) then
|
|
begin
|
|
location.loc:=LOC_MEM;
|
|
registers32:=1;
|
|
end;
|
|
end
|
|
else if (resulttype.def.deftype=floatdef) then
|
|
begin
|
|
location.loc:=LOC_FPU;
|
|
{$ifdef m68k}
|
|
if (cs_fp_emulation in aktmoduleswitches) or
|
|
(tfloatdef(resulttype.def).typ=s32real) then
|
|
registers32:=1
|
|
else
|
|
registersfpu:=1;
|
|
{$else not m68k}
|
|
registersfpu:=1;
|
|
{$endif not m68k}
|
|
end
|
|
else
|
|
location.loc:=LOC_MEM;
|
|
end;
|
|
end;
|
|
{ a fpu can be used in any procedure !! }
|
|
registersfpu:=procdefinition.fpu_used;
|
|
{ if this is a call to a method calc the registers }
|
|
if (methodpointer<>nil) then
|
|
begin
|
|
case methodpointer.nodetype of
|
|
{ but only, if this is not a supporting node }
|
|
typen: ;
|
|
{ we need one register for new return value PM }
|
|
hnewn : if registers32=0 then
|
|
registers32:=1;
|
|
else
|
|
begin
|
|
if (procdefinition.proctypeoption in [potype_constructor,potype_destructor]) and
|
|
assigned(symtableproc) and (symtableproc.symtabletype=withsymtable) and
|
|
not twithsymtable(symtableproc).direct_with then
|
|
begin
|
|
CGmessage(cg_e_cannot_call_cons_dest_inside_with);
|
|
end; { Is accepted by Delphi !! }
|
|
{ this is not a good reason to accept it in FPC if we produce
|
|
wrong code for it !!! (PM) }
|
|
|
|
{ R.Assign is not a constructor !!! }
|
|
{ but for R^.Assign, R must be valid !! }
|
|
if (procdefinition.proctypeoption=potype_constructor) or
|
|
((methodpointer.nodetype=loadn) and
|
|
(not(oo_has_virtual in tobjectdef(methodpointer.resulttype.def).objectoptions))) then
|
|
method_must_be_valid:=false
|
|
else
|
|
method_must_be_valid:=true;
|
|
firstpass(methodpointer);
|
|
set_varstate(methodpointer,method_must_be_valid);
|
|
{ The object is already used ven if it is called once }
|
|
if (methodpointer.nodetype=loadn) and
|
|
(tloadnode(methodpointer).symtableentry.typ=varsym) then
|
|
tvarsym(tloadnode(methodpointer).symtableentry).varstate:=vs_used;
|
|
|
|
registersfpu:=max(methodpointer.registersfpu,registersfpu);
|
|
registers32:=max(methodpointer.registers32,registers32);
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=max(methodpointer.registersmmx,registersmmx);
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
if inlined then
|
|
right:=inlinecode;
|
|
{ determine the registers of the procedure variable }
|
|
{ is this OK for inlined procs also ?? (PM) }
|
|
if assigned(right) then
|
|
begin
|
|
registersfpu:=max(right.registersfpu,registersfpu);
|
|
registers32:=max(right.registers32,registers32);
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=max(right.registersmmx,registersmmx);
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
{ determine the registers of the procedure }
|
|
if assigned(left) then
|
|
begin
|
|
registersfpu:=max(left.registersfpu,registersfpu);
|
|
registers32:=max(left.registers32,registers32);
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=max(left.registersmmx,registersmmx);
|
|
{$endif SUPPORT_MMX}
|
|
end;
|
|
errorexit:
|
|
if inlined then
|
|
procdefinition.proccalloption:=pocall_inline;
|
|
end;
|
|
|
|
|
|
function tcallnode.docompare(p: tnode): boolean;
|
|
begin
|
|
docompare :=
|
|
inherited docompare(p) and
|
|
(symtableprocentry = tcallnode(p).symtableprocentry) and
|
|
(symtableproc = tcallnode(p).symtableproc) and
|
|
(procdefinition = tcallnode(p).procdefinition) and
|
|
(methodpointer.isequal(tcallnode(p).methodpointer)) and
|
|
((restypeset and tcallnode(p).restypeset and
|
|
(is_equal(restype.def,tcallnode(p).restype.def))) or
|
|
(not restypeset and not tcallnode(p).restypeset));
|
|
end;
|
|
|
|
{****************************************************************************
|
|
TPROCINLINENODE
|
|
****************************************************************************}
|
|
|
|
constructor tprocinlinenode.create(callp,code : tnode);
|
|
|
|
begin
|
|
inherited create(procinlinen);
|
|
inlineprocdef:=tcallnode(callp).symtableprocentry.defs^.def;
|
|
retoffset:=-target_info.size_of_pointer; { less dangerous as zero (PM) }
|
|
para_offset:=0;
|
|
para_size:=inlineprocdef.para_size(target_info.alignment.paraalign);
|
|
if ret_in_param(inlineprocdef.rettype.def) then
|
|
inc(para_size,target_info.size_of_pointer);
|
|
{ copy args }
|
|
if assigned(code) then
|
|
inlinetree:=code.getcopy
|
|
else inlinetree := nil;
|
|
registers32:=code.registers32;
|
|
registersfpu:=code.registersfpu;
|
|
{$ifdef SUPPORT_MMX}
|
|
registersmmx:=code.registersmmx;
|
|
{$endif SUPPORT_MMX}
|
|
resulttype:=inlineprocdef.rettype;
|
|
end;
|
|
|
|
destructor tprocinlinenode.destroy;
|
|
begin
|
|
if assigned(inlinetree) then
|
|
inlinetree.free;
|
|
inherited destroy;
|
|
end;
|
|
|
|
function tprocinlinenode.getcopy : tnode;
|
|
|
|
var
|
|
n : tprocinlinenode;
|
|
|
|
begin
|
|
n:=tprocinlinenode(inherited getcopy);
|
|
if assigned(inlinetree) then
|
|
n.inlinetree:=inlinetree.getcopy
|
|
else
|
|
n.inlinetree:=nil;
|
|
n.inlineprocdef:=inlineprocdef;
|
|
n.retoffset:=retoffset;
|
|
n.para_offset:=para_offset;
|
|
n.para_size:=para_size;
|
|
getcopy:=n;
|
|
end;
|
|
|
|
procedure tprocinlinenode.insertintolist(l : tnodelist);
|
|
|
|
begin
|
|
end;
|
|
|
|
function tprocinlinenode.pass_1 : tnode;
|
|
begin
|
|
result:=nil;
|
|
{ left contains the code in tree form }
|
|
{ but it has already been firstpassed }
|
|
{ so firstpass(left); does not seem required }
|
|
{ might be required later if we change the arg handling !! }
|
|
end;
|
|
|
|
function tprocinlinenode.docompare(p: tnode): boolean;
|
|
begin
|
|
docompare :=
|
|
inherited docompare(p) and
|
|
inlinetree.isequal(tprocinlinenode(p).inlinetree) and
|
|
(inlineprocdef = tprocinlinenode(p).inlineprocdef);
|
|
end;
|
|
|
|
begin
|
|
ccallnode:=tcallnode;
|
|
ccallparanode:=tcallparanode;
|
|
cprocinlinenode:=tprocinlinenode;
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.60 2001-12-11 13:21:36 jonas
|
|
* fixed to my previous patch: the hightree must always be converted to a
|
|
longint
|
|
|
|
Revision 1.59 2001/12/10 14:28:47 jonas
|
|
* gen_high_tree now uses an inline node of type in_high_x in most cases
|
|
so that it doesn't duplicate any code anymore from ninl.pas (and
|
|
dynamic array support was still missing)
|
|
|
|
Revision 1.58 2001/11/20 18:49:43 peter
|
|
* require overload for cross object overloading
|
|
|
|
Revision 1.57 2001/11/18 20:18:54 peter
|
|
* use cp_value_equal_const instead of cp_all
|
|
|
|
Revision 1.56 2001/11/18 18:43:13 peter
|
|
* overloading supported in child classes
|
|
* fixed parsing of classes with private and virtual and overloaded
|
|
so it is compatible with delphi
|
|
|
|
Revision 1.55 2001/11/02 23:16:50 peter
|
|
* removed obsolete chainprocsym and test_procsym code
|
|
|
|
Revision 1.54 2001/11/02 22:58:01 peter
|
|
* procsym definition rewrite
|
|
|
|
Revision 1.53 2001/10/28 17:22:25 peter
|
|
* allow assignment of overloaded procedures to procvars when we know
|
|
which procedure to take
|
|
|
|
Revision 1.51 2001/10/13 09:01:14 jonas
|
|
* fixed bug with using procedures as procvar parameters in TP/Delphi mode
|
|
|
|
Revision 1.50 2001/10/12 16:04:32 peter
|
|
* nested inline fix (merged)
|
|
|
|
Revision 1.49 2001/09/02 21:12:06 peter
|
|
* move class of definitions into type section for delphi
|
|
|
|
Revision 1.48 2001/08/30 15:39:59 jonas
|
|
* fixed docompare for the fields I added to tcallnode in my previous
|
|
commit
|
|
* removed nested comment warning
|
|
|
|
Revision 1.47 2001/08/29 12:18:07 jonas
|
|
+ new createinternres() constructor for tcallnode to support setting a
|
|
custom resulttype
|
|
* compilerproc typeconversions now set the resulttype from the type
|
|
conversion for the generated call node, because the resulttype of
|
|
of the compilerproc helper isn't always exact (e.g. the ones that
|
|
return shortstrings, actually return a shortstring[x], where x is
|
|
specified by the typeconversion node)
|
|
* ti386callnode.pass_2 now always uses resulttype instead of
|
|
procsym.definition.rettype (so the custom resulttype, if any, is
|
|
always used). Note that this "rettype" stuff is only for use with
|
|
compilerprocs.
|
|
|
|
Revision 1.46 2001/08/28 13:24:46 jonas
|
|
+ compilerproc implementation of most string-related type conversions
|
|
- removed all code from the compiler which has been replaced by
|
|
compilerproc implementations (using (ifdef hascompilerproc) is not
|
|
necessary in the compiler)
|
|
|
|
Revision 1.45 2001/08/26 13:36:39 florian
|
|
* some cg reorganisation
|
|
* some PPC updates
|
|
|
|
Revision 1.44 2001/08/24 13:47:27 jonas
|
|
* moved "reverseparameters" from ninl.pas to ncal.pas
|
|
+ support for non-persistent temps in ttempcreatenode.create, for use
|
|
with typeconversion nodes
|
|
|
|
Revision 1.43 2001/08/23 14:28:35 jonas
|
|
+ tempcreate/ref/delete nodes (allows the use of temps in the
|
|
resulttype and first pass)
|
|
* made handling of read(ln)/write(ln) processor independent
|
|
* moved processor independent handling for str and reset/rewrite-typed
|
|
from firstpass to resulttype pass
|
|
* changed names of helpers in text.inc to be generic for use as
|
|
compilerprocs + added "iocheck" directive for most of them
|
|
* reading of ordinals is done by procedures instead of functions
|
|
because otherwise FPC_IOCHECK overwrote the result before it could
|
|
be stored elsewhere (range checking still works)
|
|
* compilerprocs can now be used in the system unit before they are
|
|
implemented
|
|
* added note to errore.msg that booleans can't be read using read/readln
|
|
|
|
Revision 1.42 2001/08/19 21:11:20 florian
|
|
* some bugs fix:
|
|
- overload; with external procedures fixed
|
|
- better selection of routine to do an overloaded
|
|
type case
|
|
- ... some more
|
|
|
|
Revision 1.41 2001/08/13 12:41:56 jonas
|
|
* made code for str(x,y) completely processor independent
|
|
|
|
Revision 1.40 2001/08/06 21:40:46 peter
|
|
* funcret moved from tprocinfo to tprocdef
|
|
|
|
Revision 1.39 2001/08/01 15:07:29 jonas
|
|
+ "compilerproc" directive support, which turns both the public and mangled
|
|
name to lowercase(declaration_name). This prevents a normal user from
|
|
accessing the routine, but they can still be easily looked up within
|
|
the compiler. This is used for helper procedures and should facilitate
|
|
the writing of more processor independent code in the code generator
|
|
itself (mostly written by Peter)
|
|
+ new "createintern" constructor for tcal nodes to create a call to
|
|
helper exported using the "compilerproc" directive
|
|
+ support for high(dynamic_array) using the the above new things
|
|
+ definition of 'HASCOMPILERPROC' symbol (to be able to check in the
|
|
compiler and rtl whether the "compilerproc" directive is supported)
|
|
|
|
Revision 1.38 2001/07/30 20:52:25 peter
|
|
* fixed array constructor passing with type conversions
|
|
|
|
Revision 1.37 2001/07/09 21:15:40 peter
|
|
* Length made internal
|
|
* Add array support for Length
|
|
|
|
Revision 1.36 2001/07/01 20:16:15 peter
|
|
* alignmentinfo record added
|
|
* -Oa argument supports more alignment settings that can be specified
|
|
per type: PROC,LOOP,VARMIN,VARMAX,CONSTMIN,CONSTMAX,RECORDMIN
|
|
RECORDMAX,LOCALMIN,LOCALMAX. It is possible to set the mimimum
|
|
required alignment and the maximum usefull alignment. The final
|
|
alignment will be choosen per variable size dependent on these
|
|
settings
|
|
|
|
Revision 1.35 2001/06/04 18:08:19 peter
|
|
* procvar support for varargs
|
|
|
|
Revision 1.34 2001/06/04 11:48:02 peter
|
|
* better const to var checking
|
|
|
|
Revision 1.33 2001/05/20 12:09:31 peter
|
|
* fixed exit with ansistring return from function call, no_fast_exit
|
|
should be set in det_resulttype instead of pass_1
|
|
|
|
Revision 1.32 2001/04/26 21:55:05 peter
|
|
* defcoll must be assigned in insert_typeconv
|
|
|
|
Revision 1.31 2001/04/21 12:03:11 peter
|
|
* m68k updates merged from fixes branch
|
|
|
|
Revision 1.30 2001/04/18 22:01:54 peter
|
|
* registration of targets and assemblers
|
|
|
|
Revision 1.29 2001/04/13 23:52:29 peter
|
|
* don't allow passing signed-unsigned ords to var parameter, this
|
|
forbids smallint-word, shortint-byte, longint-cardinal mixtures.
|
|
It's still allowed in tp7 -So mode.
|
|
|
|
Revision 1.28 2001/04/13 22:22:59 peter
|
|
* call set_varstate for procvar calls
|
|
|
|
Revision 1.27 2001/04/13 01:22:08 peter
|
|
* symtable change to classes
|
|
* range check generation and errors fixed, make cycle DEBUG=1 works
|
|
* memory leaks fixed
|
|
|
|
Revision 1.26 2001/04/04 22:42:39 peter
|
|
* move constant folding into det_resulttype
|
|
|
|
Revision 1.25 2001/04/02 21:20:30 peter
|
|
* resulttype rewrite
|
|
|
|
Revision 1.24 2001/03/12 12:47:46 michael
|
|
+ Patches from peter
|
|
|
|
Revision 1.23 2001/02/26 19:44:52 peter
|
|
* merged generic m68k updates from fixes branch
|
|
|
|
Revision 1.22 2001/01/08 21:46:46 peter
|
|
* don't push high value for open array with cdecl;external;
|
|
|
|
Revision 1.21 2000/12/31 11:14:10 jonas
|
|
+ implemented/fixed docompare() mathods for all nodes (not tested)
|
|
+ nopt.pas, nadd.pas, i386/n386opt.pas: optimized nodes for adding strings
|
|
and constant strings/chars together
|
|
* n386add.pas: don't copy temp strings (of size 256) to another temp string
|
|
when adding
|
|
|
|
Revision 1.20 2000/12/25 00:07:26 peter
|
|
+ new tlinkedlist class (merge of old tstringqueue,tcontainer and
|
|
tlinkedlist objects)
|
|
|
|
Revision 1.19 2000/12/17 14:35:12 peter
|
|
* fixed crash with procvar load in tp mode
|
|
|
|
Revision 1.18 2000/11/29 00:30:32 florian
|
|
* unused units removed from uses clause
|
|
* some changes for widestrings
|
|
|
|
Revision 1.17 2000/11/22 15:12:06 jonas
|
|
* fixed inline-related problems (partially "merges")
|
|
|
|
Revision 1.16 2000/11/11 16:14:52 peter
|
|
* fixed crash with settextbuf,ptr
|
|
|
|
Revision 1.15 2000/11/06 21:36:25 peter
|
|
* fixed var parameter varstate bug
|
|
|
|
Revision 1.14 2000/11/04 14:25:20 florian
|
|
+ merged Attila's changes for interfaces, not tested yet
|
|
|
|
Revision 1.13 2000/10/31 22:02:47 peter
|
|
* symtable splitted, no real code changes
|
|
|
|
Revision 1.12 2000/10/21 18:16:11 florian
|
|
* a lot of changes:
|
|
- basic dyn. array support
|
|
- basic C++ support
|
|
- some work for interfaces done
|
|
....
|
|
|
|
Revision 1.11 2000/10/21 14:35:27 peter
|
|
* readd to many remove p. for tcallnode.is_equal()
|
|
|
|
Revision 1.10 2000/10/14 21:52:55 peter
|
|
* fixed memory leaks
|
|
|
|
Revision 1.9 2000/10/14 10:14:50 peter
|
|
* moehrendorf oct 2000 rewrite
|
|
|
|
Revision 1.8 2000/10/01 19:48:24 peter
|
|
* lot of compile updates for cg11
|
|
|
|
Revision 1.7 2000/09/28 19:49:52 florian
|
|
*** empty log message ***
|
|
|
|
Revision 1.6 2000/09/27 18:14:31 florian
|
|
* fixed a lot of syntax errors in the n*.pas stuff
|
|
|
|
Revision 1.5 2000/09/24 21:15:34 florian
|
|
* some errors fix to get more stuff compilable
|
|
|
|
Revision 1.4 2000/09/24 20:17:44 florian
|
|
* more conversion work done
|
|
|
|
Revision 1.3 2000/09/24 15:06:19 peter
|
|
* use defines.inc
|
|
|
|
Revision 1.2 2000/09/20 21:52:38 florian
|
|
* removed a lot of errors
|
|
|
|
Revision 1.1 2000/09/20 20:52:16 florian
|
|
* initial revision
|
|
|
|
}
|