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faf78ea813
* fixed parsing of classes with private and virtual and overloaded
so it is compatible with delphi
364 lines
12 KiB
ObjectPascal
364 lines
12 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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Load the system unit, create required defs for systemunit
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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 psystem;
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{$i defines.inc}
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interface
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uses
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symbase;
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procedure insertinternsyms(p : tsymtable);
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procedure insert_intern_types(p : tsymtable);
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procedure readconstdefs;
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procedure createconstdefs;
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implementation
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uses
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globals,
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symconst,symtype,symsym,symdef,symtable,
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ninl;
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procedure insertinternsyms(p : tsymtable);
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{
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all intern procedures for the system unit
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}
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begin
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p.insert(tsyssym.create('Concat',in_concat_x));
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p.insert(tsyssym.create('Write',in_write_x));
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p.insert(tsyssym.create('WriteLn',in_writeln_x));
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p.insert(tsyssym.create('Assigned',in_assigned_x));
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p.insert(tsyssym.create('Read',in_read_x));
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p.insert(tsyssym.create('ReadLn',in_readln_x));
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p.insert(tsyssym.create('Ofs',in_ofs_x));
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p.insert(tsyssym.create('SizeOf',in_sizeof_x));
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p.insert(tsyssym.create('TypeOf',in_typeof_x));
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p.insert(tsyssym.create('Low',in_low_x));
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p.insert(tsyssym.create('High',in_high_x));
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p.insert(tsyssym.create('Seg',in_seg_x));
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p.insert(tsyssym.create('Ord',in_ord_x));
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p.insert(tsyssym.create('Pred',in_pred_x));
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p.insert(tsyssym.create('Succ',in_succ_x));
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p.insert(tsyssym.create('Exclude',in_exclude_x_y));
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p.insert(tsyssym.create('Include',in_include_x_y));
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p.insert(tsyssym.create('Break',in_break));
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p.insert(tsyssym.create('Continue',in_continue));
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p.insert(tsyssym.create('Dec',in_dec_x));
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p.insert(tsyssym.create('Inc',in_inc_x));
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p.insert(tsyssym.create('Str',in_str_x_string));
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p.insert(tsyssym.create('Assert',in_assert_x_y));
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p.insert(tsyssym.create('Val',in_val_x));
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p.insert(tsyssym.create('Addr',in_addr_x));
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p.insert(tsyssym.create('TypeInfo',in_typeinfo_x));
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p.insert(tsyssym.create('SetLength',in_setlength_x));
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p.insert(tsyssym.create('Finalize',in_finalize_x));
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p.insert(tsyssym.create('Length',in_length_x));
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p.insert(tsyssym.create('New',in_new_x));
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p.insert(tsyssym.create('Dispose',in_dispose_x));
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end;
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procedure insert_intern_types(p : tsymtable);
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{
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all the types inserted into the system unit
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}
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function addtype(const s:string;const t:ttype):ttypesym;
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begin
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result:=ttypesym.create(s,t);
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p.insert(result);
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{ add init/final table if required }
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if t.def.needs_inittable then
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generate_inittable(result);
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end;
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procedure adddef(const s:string;def:tdef);
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var
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t : ttype;
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begin
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t.setdef(def);
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p.insert(ttypesym.create(s,t));
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end;
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var
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{ several defs to simulate more or less C++ objects for GDB }
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vmttype,
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vmtarraytype : ttype;
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vmtsymtable : tsymtable;
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begin
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{ Normal types }
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addtype('Single',s32floattype);
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addtype('Double',s64floattype);
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addtype('Extended',s80floattype);
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addtype('Real',s64floattype);
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{$ifdef i386}
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adddef('Comp',tfloatdef.create(s64comp));
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{$endif}
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addtype('Pointer',voidpointertype);
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addtype('FarPointer',voidfarpointertype);
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addtype('ShortString',cshortstringtype);
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addtype('LongString',clongstringtype);
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addtype('AnsiString',cansistringtype);
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addtype('WideString',cwidestringtype);
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addtype('Boolean',booltype);
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addtype('ByteBool',booltype);
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adddef('WordBool',torddef.create(bool16bit,0,1));
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adddef('LongBool',torddef.create(bool32bit,0,1));
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addtype('Char',cchartype);
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addtype('WideChar',cwidechartype);
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adddef('Text',tfiledef.createtext);
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addtype('Cardinal',u32bittype);
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addtype('QWord',cu64bittype);
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addtype('Int64',cs64bittype);
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adddef('TypedFile',tfiledef.createtyped(voidtype));
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addtype('Variant',cvarianttype);
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{ Internal types }
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addtype('$formal',cformaltype);
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addtype('$void',voidtype);
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addtype('$byte',u8bittype);
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addtype('$word',u16bittype);
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addtype('$ulong',u32bittype);
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addtype('$longint',s32bittype);
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addtype('$qword',cu64bittype);
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addtype('$int64',cs64bittype);
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addtype('$char',cchartype);
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addtype('$widechar',cwidechartype);
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addtype('$shortstring',cshortstringtype);
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addtype('$longstring',clongstringtype);
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addtype('$ansistring',cansistringtype);
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addtype('$widestring',cwidestringtype);
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addtype('$openshortstring',openshortstringtype);
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addtype('$boolean',booltype);
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addtype('$void_pointer',voidpointertype);
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addtype('$char_pointer',charpointertype);
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addtype('$void_farpointer',voidfarpointertype);
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addtype('$openchararray',openchararraytype);
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addtype('$file',cfiletype);
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addtype('$variant',cvarianttype);
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addtype('$s32real',s32floattype);
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addtype('$s64real',s64floattype);
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addtype('$s80real',s80floattype);
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{ Add a type for virtual method tables }
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vmtsymtable:=trecordsymtable.create;
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vmttype.setdef(trecorddef.create(vmtsymtable));
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pvmttype.setdef(tpointerdef.create(vmttype));
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vmtsymtable.insert(tvarsym.create('$parent',pvmttype));
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vmtsymtable.insert(tvarsym.create('$length',s32bittype));
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vmtsymtable.insert(tvarsym.create('$mlength',s32bittype));
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vmtarraytype.setdef(tarraydef.create(0,1,s32bittype));
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tarraydef(vmtarraytype.def).elementtype:=voidpointertype;
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vmtsymtable.insert(tvarsym.create('$__pfn',vmtarraytype));
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addtype('$__vtbl_ptr_type',vmttype);
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addtype('$pvmt',pvmttype);
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vmtarraytype.setdef(tarraydef.create(0,1,s32bittype));
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tarraydef(vmtarraytype.def).elementtype:=pvmttype;
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addtype('$vtblarray',vmtarraytype);
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{ Add functions that require compiler magic }
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insertinternsyms(p);
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end;
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procedure readconstdefs;
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{
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Load all default definitions for consts from the system unit
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}
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begin
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globaldef('byte',u8bittype);
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globaldef('word',u16bittype);
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globaldef('ulong',u32bittype);
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globaldef('longint',s32bittype);
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globaldef('qword',cu64bittype);
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globaldef('int64',cs64bittype);
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globaldef('formal',cformaltype);
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globaldef('void',voidtype);
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globaldef('char',cchartype);
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globaldef('widechar',cwidechartype);
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globaldef('shortstring',cshortstringtype);
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globaldef('longstring',clongstringtype);
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globaldef('ansistring',cansistringtype);
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globaldef('widestring',cwidestringtype);
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globaldef('openshortstring',openshortstringtype);
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globaldef('openchararray',openchararraytype);
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globaldef('s32real',s32floattype);
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globaldef('s64real',s64floattype);
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globaldef('s80real',s80floattype);
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globaldef('boolean',booltype);
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globaldef('void_pointer',voidpointertype);
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globaldef('char_pointer',charpointertype);
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globaldef('void_farpointer',voidfarpointertype);
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globaldef('file',cfiletype);
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globaldef('pvmt',pvmttype);
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globaldef('variant',cvarianttype);
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end;
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procedure createconstdefs;
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{
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Create all default definitions for consts for the system unit
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}
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var
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oldregisterdef : boolean;
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begin
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{ create definitions for constants }
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oldregisterdef:=registerdef;
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registerdef:=false;
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cformaltype.setdef(tformaldef.create);
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voidtype.setdef(torddef.create(uvoid,0,0));
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u8bittype.setdef(torddef.create(u8bit,0,255));
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u16bittype.setdef(torddef.create(u16bit,0,65535));
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u32bittype.setdef(torddef.create(u32bit,0,longint($ffffffff)));
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s32bittype.setdef(torddef.create(s32bit,longint($80000000),$7fffffff));
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cu64bittype.setdef(torddef.create(u64bit,0,0));
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cs64bittype.setdef(torddef.create(s64bit,0,0));
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booltype.setdef(torddef.create(bool8bit,0,1));
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cchartype.setdef(torddef.create(uchar,0,255));
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cwidechartype.setdef(torddef.create(uwidechar,0,65535));
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cshortstringtype.setdef(tstringdef.createshort(255));
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{ should we give a length to the default long and ansi string definition ?? }
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clongstringtype.setdef(tstringdef.createlong(-1));
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cansistringtype.setdef(tstringdef.createansi(-1));
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cwidestringtype.setdef(tstringdef.createwide(-1));
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{ length=0 for shortstring is open string (needed for readln(string) }
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openshortstringtype.setdef(tstringdef.createshort(0));
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openchararraytype.setdef(tarraydef.create(0,-1,s32bittype));
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tarraydef(openchararraytype.def).elementtype:=cchartype;
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{$ifdef i386}
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s32floattype.setdef(tfloatdef.create(s32real));
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s64floattype.setdef(tfloatdef.create(s64real));
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s80floattype.setdef(tfloatdef.create(s80real));
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{$endif}
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{$ifdef m68k}
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s32floattype.setdef(tfloatdef.create(s32real));
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if (cs_fp_emulation in aktmoduleswitches) then
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begin
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s64floattype.setdef(tfloatdef.create(s32real));
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s80floattype.setdef(tfloatdef.create(s32real)))
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end
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else
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begin
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s64floattype.setdef(tfloatdef.create(s64real));
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s80floattype.setdef(tfloatdef.create(s80real));
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end;
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{$endif}
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{ some other definitions }
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voidpointertype.setdef(tpointerdef.create(voidtype));
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charpointertype.setdef(tpointerdef.create(cchartype));
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voidfarpointertype.setdef(tpointerdef.createfar(voidtype));
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cfiletype.setdef(tfiledef.createuntyped);
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cvarianttype.setdef(tvariantdef.create);
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registerdef:=oldregisterdef;
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end;
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end.
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{
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$Log$
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Revision 1.21 2001-11-18 18:43:14 peter
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* overloading supported in child classes
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* fixed parsing of classes with private and virtual and overloaded
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so it is compatible with delphi
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Revision 1.20 2001/10/24 11:51:39 marco
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* Make new/dispose system functions instead of keywords
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Revision 1.19 2001/08/30 20:13:53 peter
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* rtti/init table updates
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* rttisym for reusable global rtti/init info
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* support published for interfaces
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Revision 1.18 2001/07/30 20:59:27 peter
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* m68k updates from v10 merged
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Revision 1.17 2001/07/09 21:15:41 peter
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* Length made internal
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* Add array support for Length
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Revision 1.16 2001/05/09 19:58:45 peter
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* m68k doesn't support double (merged)
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Revision 1.15 2001/04/13 01:22:13 peter
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* symtable change to classes
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* range check generation and errors fixed, make cycle DEBUG=1 works
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* memory leaks fixed
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Revision 1.14 2001/04/02 21:20:34 peter
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* resulttype rewrite
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Revision 1.13 2001/03/25 12:40:00 florian
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* cwidechar was loaded with a chardef, fixed
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Revision 1.12 2001/03/22 00:10:58 florian
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+ basic variant type support in the compiler
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Revision 1.11 2000/12/07 17:19:43 jonas
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* new constant handling: from now on, hex constants >$7fffffff are
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parsed as unsigned constants (otherwise, $80000000 got sign extended
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and became $ffffffff80000000), all constants in the longint range
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become longints, all constants >$7fffffff and <=cardinal($ffffffff)
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are cardinals and the rest are int64's.
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* added lots of longint typecast to prevent range check errors in the
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compiler and rtl
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* type casts of symbolic ordinal constants are now preserved
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* fixed bug where the original resulttype.def wasn't restored correctly
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after doing a 64bit rangecheck
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Revision 1.10 2000/11/29 00:30:38 florian
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* unused units removed from uses clause
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* some changes for widestrings
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Revision 1.9 2000/11/09 17:46:56 florian
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* System.TypeInfo fixed
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+ System.Finalize implemented
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+ some new keywords for interface support added
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Revision 1.8 2000/10/31 22:02:51 peter
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* symtable splitted, no real code changes
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Revision 1.7 2000/10/21 18:16:12 florian
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* a lot of changes:
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- basic dyn. array support
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- basic C++ support
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- some work for interfaces done
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....
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Revision 1.6 2000/10/14 10:14:52 peter
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* moehrendorf oct 2000 rewrite
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Revision 1.5 2000/09/24 15:06:24 peter
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* use defines.inc
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Revision 1.4 2000/08/27 20:19:39 peter
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* store strings with case in ppu, when an internal symbol is created
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a '$' is prefixed so it's not automatic uppercased
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Revision 1.3 2000/08/16 13:06:06 florian
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+ support of 64 bit integer constants
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Revision 1.2 2000/07/13 11:32:47 michael
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+ removed logs
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}
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