mirror of
https://gitlab.com/freepascal.org/fpc/source.git
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633 lines
21 KiB
PHP
633 lines
21 KiB
PHP
{
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$Id$
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Copyright (c) 1993-98 by Florian Klaempfl, Pierre Muller
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Interface for the definition types of the symtable
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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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{************************************************
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TDef
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************************************************}
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pdef = ^tdef;
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tdef = object(tsymtableentry)
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deftype : tdeftype;
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sym : ptypesym; { which type the definition was generated this def }
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has_inittable : boolean;
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{ adress of init informations }
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inittable_label : pasmlabel;
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has_rtti : boolean;
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{ address of rtti }
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rtti_label : pasmlabel;
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nextglobal,
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previousglobal : pdef;
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{$ifdef GDB}
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globalnb : word;
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is_def_stab_written : boolean;
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{$endif GDB}
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constructor init;
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constructor load;
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destructor done;virtual;
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procedure deref;virtual;
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procedure symderef;virtual;
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function typename:string;
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procedure write;virtual;
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function size:longint;virtual;
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function alignment:longint;virtual;
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function gettypename:string;virtual;
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function is_publishable : boolean;virtual;
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function is_in_current : boolean;
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procedure correct_owner_symtable; { registers enumdef inside objects or
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record directly in the owner symtable !! }
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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function NumberString:string;
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procedure set_globalnb;
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function allstabstring : pchar;
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{$endif GDB}
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{ init. tables }
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function needs_inittable : boolean;virtual;
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procedure generate_inittable;
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function get_inittable_label : pasmlabel;
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{ the default implemenation calls write_rtti_data }
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{ if init and rtti data is different these procedures }
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{ must be overloaded }
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procedure write_init_data;virtual;
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procedure write_child_init_data;virtual;
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{ rtti }
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procedure write_rtti_name;
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function get_rtti_label : string;virtual;
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procedure generate_rtti;virtual;
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procedure write_rtti_data;virtual;
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procedure write_child_rtti_data;virtual;
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function is_intregable : boolean;
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function is_fpuregable : boolean;
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private
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savesize : longint;
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end;
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targconvtyp = (act_convertable,act_equal,act_exact);
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tvarspez = (vs_value,vs_const,vs_var);
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pparaitem = ^tparaitem;
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tparaitem = object(tlinkedlist_item)
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data : pdef;
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datasym : ptypesym;
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paratyp : tvarspez;
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argconvtyp : targconvtyp;
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convertlevel : byte;
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register : tregister;
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end;
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tfiletype = (ft_text,ft_typed,ft_untyped);
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pfiledef = ^tfiledef;
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tfiledef = object(tdef)
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filetype : tfiletype;
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typed_as : pdef;
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constructor init(ft : tfiletype;tas : pdef);
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constructor load;
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procedure write;virtual;
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procedure deref;virtual;
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function gettypename:string;virtual;
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procedure setsize;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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end;
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pformaldef = ^tformaldef;
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tformaldef = object(tdef)
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constructor init;
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constructor load;
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procedure write;virtual;
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function gettypename:string;virtual;
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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end;
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pforwarddef = ^tforwarddef;
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tforwarddef = object(tdef)
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tosymname : string;
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forwardpos : tfileposinfo;
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constructor init(const s:string;const pos : tfileposinfo);
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function gettypename:string;virtual;
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end;
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perrordef = ^terrordef;
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terrordef = object(tdef)
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constructor init;
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function gettypename:string;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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{$endif GDB}
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end;
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{ tpointerdef and tclassrefdef should get a common
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base class, but I derived tclassrefdef from tpointerdef
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to avoid problems with bugs (FK)
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}
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ppointerdef = ^tpointerdef;
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tpointerdef = object(tdef)
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definition : pdef;
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defsym : ptypesym;
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is_far : boolean;
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constructor init(def : pdef);
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constructor initfar(def : pdef);
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constructor load;
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destructor done;virtual;
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procedure write;virtual;
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procedure deref;virtual;
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function gettypename:string;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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end;
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pobjectdef = ^tobjectdef;
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tobjectdef = object(tdef)
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childof : pobjectdef;
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objname : pstring;
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symtable : psymtable;
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objectoptions : tobjectoptions;
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{ to be able to have a variable vmt position }
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{ and no vmt field for objects without virtuals }
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vmt_offset : longint;
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constructor init(const n : string;c : pobjectdef);
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constructor load;
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destructor done;virtual;
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procedure write;virtual;
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procedure deref;virtual;
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function size : longint;virtual;
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function alignment:longint;virtual;
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function vmtmethodoffset(index:longint):longint;
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function is_publishable : boolean;virtual;
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function vmt_mangledname : string;
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function rtti_name : string;
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procedure check_forwards;
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function is_related(d : pobjectdef) : boolean;
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function is_class : boolean;
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function next_free_name_index : longint;
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procedure insertvmt;
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procedure set_parent(c : pobjectdef);
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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{$endif GDB}
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{ init/final }
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function needs_inittable : boolean;virtual;
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procedure write_init_data;virtual;
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procedure write_child_init_data;virtual;
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{ rtti }
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function get_rtti_label : string;virtual;
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procedure generate_rtti;virtual;
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procedure write_rtti_data;virtual;
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procedure write_child_rtti_data;virtual;
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end;
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pclassrefdef = ^tclassrefdef;
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tclassrefdef = object(tpointerdef)
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constructor init(def : pdef);
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constructor load;
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procedure write;virtual;
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function gettypename:string;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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end;
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parraydef = ^tarraydef;
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tarraydef = object(tdef)
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private
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rangenr : longint;
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public
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lowrange,
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highrange : longint;
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definition : pdef;
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rangedef : pdef;
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IsVariant,
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IsConstructor,
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IsArrayOfConst : boolean;
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function gettypename:string;virtual;
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function elesize : longint;
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constructor init(l,h : longint;rd : pdef);
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constructor load;
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procedure write;virtual;
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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procedure deref;virtual;
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function size : longint;virtual;
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function alignment : longint;virtual;
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{ generates the ranges needed by the asm instruction BOUND (i386)
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or CMP2 (Motorola) }
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procedure genrangecheck;
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{ returns the label of the range check string }
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function getrangecheckstring : string;
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function needs_inittable : boolean;virtual;
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procedure write_rtti_data;virtual;
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procedure write_child_rtti_data;virtual;
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end;
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precorddef = ^trecorddef;
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trecorddef = object(tdef)
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symtable : psymtable;
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constructor init(p : psymtable);
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constructor load;
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destructor done;virtual;
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procedure write;virtual;
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procedure deref;virtual;
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function size:longint;virtual;
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function alignment : longint;virtual;
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function gettypename:string;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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{ init/final }
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procedure write_init_data;virtual;
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procedure write_child_init_data;virtual;
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function needs_inittable : boolean;virtual;
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{ rtti }
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procedure write_rtti_data;virtual;
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procedure write_child_rtti_data;virtual;
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end;
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porddef = ^torddef;
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torddef = object(tdef)
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low,high : longint;
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rangenr : longint;
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typ : tbasetype;
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constructor init(t : tbasetype;v,b : longint);
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constructor load;
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procedure write;virtual;
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function is_publishable : boolean;virtual;
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function gettypename:string;virtual;
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procedure setsize;
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{ generates the ranges needed by the asm instruction BOUND }
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{ or CMP2 (Motorola) }
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procedure genrangecheck;
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function getrangecheckstring : string;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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{$endif GDB}
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{ rtti }
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procedure write_rtti_data;virtual;
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end;
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pfloatdef = ^tfloatdef;
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tfloatdef = object(tdef)
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typ : tfloattype;
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constructor init(t : tfloattype);
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constructor load;
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procedure write;virtual;
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function gettypename:string;virtual;
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function is_publishable : boolean;virtual;
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procedure setsize;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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{$endif GDB}
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{ rtti }
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procedure write_rtti_data;virtual;
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end;
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pabstractprocdef = ^tabstractprocdef;
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tabstractprocdef = object(tdef)
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{ saves a definition to the return type }
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retdef : pdef;
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proctypeoption : tproctypeoption;
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proccalloptions : tproccalloptions;
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procoptions : tprocoptions;
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para : plinkedlist;
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symtablelevel : byte;
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fpu_used : byte; { how many stack fpu must be empty }
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constructor init;
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constructor load;
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destructor done;virtual;
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procedure write;virtual;
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procedure deref;virtual;
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procedure concatdef(p : pdef;vsp : tvarspez);
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procedure concattypesym(p : ptypesym;vsp : tvarspez);
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function para_size : longint;
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function demangled_paras : string;
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function proccalloption2str : string;
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procedure test_if_fpu_result;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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end;
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pprocvardef = ^tprocvardef;
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tprocvardef = object(tabstractprocdef)
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constructor init;
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constructor load;
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procedure write;virtual;
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function size : longint;virtual;
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function gettypename:string;virtual;
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function is_publishable : boolean;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput); virtual;
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{$endif GDB}
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{ rtti }
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procedure write_child_rtti_data;virtual;
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procedure write_rtti_data;virtual;
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end;
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tmessageinf = record
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case integer of
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0 : (str : pchar);
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1 : (i : longint);
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end;
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pprocdef = ^tprocdef;
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tprocdef = object(tabstractprocdef)
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private
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_mangledname : pchar;
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public
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extnumber : longint;
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messageinf : tmessageinf;
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nextoverloaded : pprocdef;
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{ where is this function defined, needed here because there
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is only one symbol for all overloaded functions }
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fileinfo : tfileposinfo;
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{ pointer to the local symbol table }
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localst : psymtable;
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{ pointer to the parameter symbol table }
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parast : psymtable;
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{ symbol owning this definition }
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procsym : pprocsym;
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{ browser info }
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lastref,
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defref,
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crossref,
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lastwritten : pref;
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refcount : longint;
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_class : pobjectdef;
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{ it's a tree, but this not easy to handle }
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{ used for inlined procs }
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code : pointer;
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{ true, if the procedure is only declared }
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{ (forward procedure) }
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forwarddef,
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{ true if the procedure is declared in the interface }
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interfacedef : boolean;
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{ check the problems of manglednames }
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count : boolean;
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is_used : boolean;
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{ small set which contains the modified registers }
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{$ifdef newcg}
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usedregisters : tregisterset;
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{$else newcg}
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usedregisters : longint;
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{$endif newcg}
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constructor init;
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constructor load;
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destructor done;virtual;
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procedure write;virtual;
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procedure deref;virtual;
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function haspara:boolean;
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function mangledname : string;
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procedure setmangledname(const s : string);
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procedure load_references;
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function write_references : boolean;
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function procname: string;
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{ debug }
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{$ifdef GDB}
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function cplusplusmangledname : string;
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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{ browser }
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{$ifdef BrowserLog}
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procedure add_to_browserlog;
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{$endif BrowserLog}
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end;
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pstringdef = ^tstringdef;
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tstringdef = object(tdef)
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string_typ : tstringtype;
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len : longint;
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constructor shortinit(l : byte);
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constructor shortload;
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constructor longinit(l : longint);
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constructor longload;
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constructor ansiinit(l : longint);
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constructor ansiload;
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constructor wideinit(l : longint);
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constructor wideload;
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function stringtypname:string;
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function size : longint;virtual;
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procedure write;virtual;
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function gettypename:string;virtual;
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function is_publishable : boolean;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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{ init/final }
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function needs_inittable : boolean;virtual;
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{ rtti }
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procedure write_rtti_data;virtual;
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end;
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penumdef = ^tenumdef;
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tenumdef = object(tdef)
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rangenr,
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minval,
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maxval : longint;
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has_jumps : boolean;
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firstenum : penumsym;
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basedef : penumdef;
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constructor init;
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constructor init_subrange(_basedef:penumdef;_min,_max:longint);
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constructor load;
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destructor done;virtual;
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procedure write;virtual;
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procedure deref;virtual;
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function gettypename:string;virtual;
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function is_publishable : boolean;virtual;
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procedure calcsavesize;
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procedure setmax(_max:longint);
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procedure setmin(_min:longint);
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function min:longint;
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function max:longint;
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function getrangecheckstring:string;
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procedure genrangecheck;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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{$endif GDB}
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{ rtti }
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procedure write_child_rtti_data;virtual;
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procedure write_rtti_data;virtual;
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end;
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psetdef = ^tsetdef;
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tsetdef = object(tdef)
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setof : pdef;
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settype : tsettype;
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constructor init(s : pdef;high : longint);
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constructor load;
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procedure write;virtual;
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procedure deref;virtual;
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function gettypename:string;virtual;
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function is_publishable : boolean;virtual;
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{ debug }
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{$ifdef GDB}
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function stabstring : pchar;virtual;
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procedure concatstabto(asmlist : paasmoutput);virtual;
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{$endif GDB}
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{ rtti }
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procedure write_rtti_data;virtual;
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procedure write_child_rtti_data;virtual;
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end;
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{
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$Log$
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Revision 1.47 1999-11-17 17:05:04 pierre
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* Notes/hints changes
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Revision 1.46 1999/11/09 23:35:50 pierre
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+ better reference pos for forward defs
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Revision 1.45 1999/11/06 14:34:27 peter
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* truncated log to 20 revs
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Revision 1.44 1999/10/26 12:30:45 peter
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* const parameter is now checked
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* better and generic check if a node can be used for assigning
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* export fixes
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* procvar equal works now (it never had worked at least from 0.99.8)
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* defcoll changed to linkedlist with pparaitem so it can easily be
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walked both directions
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Revision 1.43 1999/10/01 10:05:44 peter
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+ procedure directive support in const declarations, fixes bug 232
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Revision 1.42 1999/10/01 08:02:48 peter
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* forward type declaration rewritten
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Revision 1.41 1999/08/10 12:34:49 pierre
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+ procsym field in tprocdef to allow correct gdb info generation
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Revision 1.40 1999/08/09 22:19:57 peter
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* classes vmt changed to only positive addresses
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* sharedlib creation is working
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Revision 1.39 1999/08/07 14:21:02 florian
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* some small problems fixed
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Revision 1.38 1999/08/05 16:53:15 peter
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* V_Fatal=1, all other V_ are also increased
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* Check for local procedure when assigning procvar
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* fixed comment parsing because directives
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* oldtp mode directives better supported
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* added some messages to errore.msg
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Revision 1.37 1999/08/03 22:03:16 peter
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* moved bitmask constants to sets
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* some other type/const renamings
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Revision 1.36 1999/08/02 21:29:04 florian
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* the main branch psub.pas is now used for
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newcg compiler
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Revision 1.35 1999/07/27 23:42:20 peter
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* indirect type referencing is now allowed
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Revision 1.34 1999/07/23 16:05:30 peter
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* alignment is now saved in the symtable
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* C alignment added for records
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* PPU version increased to solve .12 <-> .13 probs
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Revision 1.33 1999/06/22 16:24:45 pierre
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* local browser stuff corrected
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Revision 1.32 1999/06/02 10:11:51 florian
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* make cycle fixed i.e. compilation with 0.99.10
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* some fixes for qword
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* start of register calling conventions
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Revision 1.31 1999/05/31 16:42:35 peter
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* interfacedef flag for procdef if it's defined in the interface, to
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make a difference with 'forward;' directive forwarddef. Fixes 253
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Revision 1.30 1999/05/27 19:45:04 peter
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* removed oldasm
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* plabel -> pasmlabel
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* -a switches to source writing automaticly
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* assembler readers OOPed
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* asmsymbol automaticly external
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* jumptables and other label fixes for asm readers
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Revision 1.29 1999/05/23 18:42:15 florian
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* better error recovering in typed constants
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* some problems with arrays of const fixed, some problems
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due my previous
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- the location type of array constructor is now LOC_MEM
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- the pushing of high fixed
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- parameter copying fixed
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- zero temp. allocation removed
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* small problem in the assembler writers fixed:
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ref to nil wasn't written correctly
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Revision 1.28 1999/05/19 16:48:28 florian
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* tdef.typename: returns a now a proper type name for the most types
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Revision 1.27 1999/05/13 21:59:42 peter
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* removed oldppu code
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* warning if objpas is loaded from uses
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* first things for new deref writing
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Revision 1.26 1999/05/12 00:19:59 peter
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* removed R_DEFAULT_SEG
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* uniform float names
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Revision 1.25 1999/05/08 19:52:37 peter
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+ MessagePos() which is enhanced Message() function but also gets the
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position info
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* Removed comp warnings
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}
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