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https://gitlab.com/freepascal.org/fpc/source.git
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860 lines
35 KiB
ObjectPascal
860 lines
35 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1998-2000 by Florian Klaempfl
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Reads typed constants
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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 ptconst;
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interface
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uses symtable;
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{ this procedure reads typed constants }
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{ sym is only needed for ansi strings }
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{ the assembler label is in the middle (PM) }
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procedure readtypedconst(def : pdef;sym : ptypedconstsym;no_change_allowed : boolean);
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implementation
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uses
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globtype,systems,tokens,
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cobjects,globals,scanner,
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symconst,aasm,types,verbose,
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tree,pass_1,
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{ parser specific stuff }
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pbase,pexpr,
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{ processor specific stuff }
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cpubase,
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{ codegen }
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{$ifdef newcg}
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cgbase,
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{$else}
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hcodegen,
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{$endif}
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hcgdata;
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{$ifdef fpc}
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{$maxfpuregisters 0}
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{$endif fpc}
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{ this procedure reads typed constants }
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procedure readtypedconst(def : pdef;sym : ptypedconstsym;no_change_allowed : boolean);
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var
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{$ifdef m68k}
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j : longint;
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{$endif m68k}
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len,base : longint;
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p,hp : ptree;
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i,l,offset,
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strlength : longint;
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curconstsegment : paasmoutput;
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ll : pasmlabel;
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s : string;
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ca : pchar;
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aktpos : longint;
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obj : pobjectdef;
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symt : psymtable;
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value : bestreal;
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procedure check_range;
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begin
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if ((p^.value>porddef(def)^.high) or
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(p^.value<porddef(def)^.low)) then
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begin
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if (cs_check_range in aktlocalswitches) then
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Message(parser_e_range_check_error)
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else
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Message(parser_w_range_check_error);
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end;
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end;
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(* function is_po_equal(o1,o2:longint):boolean;
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begin
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{ assembler does not affect }
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is_po_equal:=(o1 and not(poassembler))=
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(o2 and not(poassembler));
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end; *)
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{$R-} {Range check creates problem with init_8bit(-1) !!}
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begin
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if no_change_allowed then
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curconstsegment:=consts
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else
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curconstsegment:=datasegment;
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case def^.deftype of
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orddef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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case porddef(def)^.typ of
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s8bit,
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u8bit : begin
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if not is_constintnode(p) then
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{ is't an int expected }
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Message(cg_e_illegal_expression)
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else
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begin
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value)));
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check_range;
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end;
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end;
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s32bit : begin
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if not is_constintnode(p) then
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Message(cg_e_illegal_expression)
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else
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begin
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curconstsegment^.concat(new(pai_const,init_32bit(p^.value)));
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check_range;
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end;
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end;
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u32bit : begin
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if not is_constintnode(p) then
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Message(cg_e_illegal_expression)
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else
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curconstsegment^.concat(new(pai_const,init_32bit(p^.value)));
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end;
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bool8bit : begin
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if not is_constboolnode(p) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value)));
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end;
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bool16bit : begin
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if not is_constboolnode(p) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_16bit(p^.value)));
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end;
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bool32bit : begin
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if not is_constboolnode(p) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_32bit(p^.value)));
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end;
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uchar : begin
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if not is_constcharnode(p) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value)));
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end;
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uwidechar : begin
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if not is_constcharnode(p) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_16bit(p^.value)));
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end;
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u16bit,
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s16bit : begin
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if not is_constintnode(p) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_16bit(p^.value)));
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check_range;
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end;
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s64bit,
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u64bit:
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begin
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if not is_constintnode(p) then
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Message(cg_e_illegal_expression)
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else
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begin
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{!!!!! hmmm, we can write yet only consts til 2^32-1 :( (FK) }
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curconstsegment^.concat(new(pai_const,init_32bit(p^.value)));
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curconstsegment^.concat(new(pai_const,init_32bit(0)));
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end;
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end;
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else
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internalerror(3799);
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end;
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disposetree(p);
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end;
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floatdef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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if is_constrealnode(p) then
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value:=p^.value_real
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else if is_constintnode(p) then
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value:=p^.value
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else
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Message(cg_e_illegal_expression);
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case pfloatdef(def)^.typ of
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s32real : curconstsegment^.concat(new(pai_real_32bit,init(value)));
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s64real : curconstsegment^.concat(new(pai_real_64bit,init(value)));
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s80real : curconstsegment^.concat(new(pai_real_80bit,init(value)));
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s64comp : curconstsegment^.concat(new(pai_comp_64bit,init(value)));
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f32bit : curconstsegment^.concat(new(pai_const,init_32bit(trunc(value*65536))));
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else internalerror(18);
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end;
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disposetree(p);
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end;
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classrefdef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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case p^.treetype of
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loadvmtn:
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begin
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if not(pobjectdef(pclassrefdef(p^.resulttype)^.pointertype.def)^.is_related(
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pobjectdef(pclassrefdef(def)^.pointertype.def))) then
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Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const_symbol,init(newasmsymbol(pobjectdef(
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pclassrefdef(p^.resulttype)^.pointertype.def)^.vmt_mangledname))));
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end;
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niln:
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curconstsegment^.concat(new(pai_const,init_32bit(0)));
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else Message(cg_e_illegal_expression);
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end;
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disposetree(p);
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end;
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pointerdef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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if (p^.treetype=typeconvn) and
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((p^.left^.treetype=addrn) or (p^.left^.treetype=niln)) and
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is_equal(def,p^.resulttype) then
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begin
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hp:=p^.left;
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putnode(p);
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p:=hp;
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end;
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{ allows horrible ofs(typeof(TButton)^) code !! }
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if (p^.treetype=addrn) and (p^.left^.treetype=derefn) then
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begin
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hp:=p^.left^.left;
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p^.left^.left:=nil;
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disposetree(p);
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p:=hp;
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end;
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{ nil pointer ? }
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if p^.treetype=niln then
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curconstsegment^.concat(new(pai_const,init_32bit(0)))
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{ maybe pchar ? }
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else
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if is_char(ppointerdef(def)^.pointertype.def) and
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(p^.treetype<>addrn) then
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begin
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getdatalabel(ll);
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curconstsegment^.concat(new(pai_const_symbol,init(ll)));
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consts^.concat(new(pai_label,init(ll)));
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if p^.treetype=stringconstn then
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begin
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getmem(ca,p^.length+2);
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move(p^.value_str^,ca^,p^.length+1);
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consts^.concat(new(pai_string,init_length_pchar(ca,p^.length+1)));
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end
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else
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if is_constcharnode(p) then
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consts^.concat(new(pai_string,init(char(byte(p^.value))+#0)))
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else
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Message(cg_e_illegal_expression);
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end
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else
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if p^.treetype=addrn then
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begin
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hp:=p^.left;
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while assigned(hp) and (hp^.treetype in [subscriptn,vecn]) do
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hp:=hp^.left;
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if (is_equal(ppointerdef(p^.resulttype)^.pointertype.def,ppointerdef(def)^.pointertype.def) or
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(is_equal(ppointerdef(p^.resulttype)^.pointertype.def,voiddef)) or
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(is_equal(ppointerdef(def)^.pointertype.def,voiddef))) and
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(hp^.treetype=loadn) then
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begin
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do_firstpass(p^.left);
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hp:=p^.left;
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offset:=0;
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while assigned(hp) and (hp^.treetype<>loadn) do
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begin
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case hp^.treetype of
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vecn :
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begin
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if (hp^.left^.resulttype^.deftype=stringdef) then
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begin
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{ this seems OK for shortstring and ansistrings PM }
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{ it is wrong for widestrings !! }
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len:=1;
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base:=0;
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end
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else if (hp^.left^.resulttype^.deftype=arraydef) then
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begin
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len:=parraydef(hp^.left^.resulttype)^.elesize;
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base:=parraydef(hp^.left^.resulttype)^.lowrange;
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end
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else
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Message(cg_e_illegal_expression);
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if is_constintnode(hp^.right) then
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inc(offset,len*(get_ordinal_value(hp^.right)-base))
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else
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Message(cg_e_illegal_expression);
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{internalerror(9779);}
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end;
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subscriptn : inc(offset,hp^.vs^.address)
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else
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Message(cg_e_illegal_expression);
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end;
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hp:=hp^.left;
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end;
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if hp^.symtableentry^.typ=constsym then
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Message(type_e_variable_id_expected);
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curconstsegment^.concat(new(pai_const_symbol,initname_offset(hp^.symtableentry^.mangledname,offset)));
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(*if token=POINT then
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begin
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offset:=0;
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while token=_POINT do
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begin
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consume(_POINT);
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lsym:=pvarsym(precdef(
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ppointerdef(p^.resulttype)^.pointertype.def)^.symtable^.search(pattern));
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if assigned(sym) then
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offset:=offset+lsym^.address
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else
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begin
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Message1(sym_e_illegal_field,pattern);
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end;
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consume(_ID);
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end;
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curconstsegment^.concat(new(pai_const_symbol_offset,init(
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strpnew(p^.left^.symtableentry^.mangledname),offset)));
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end
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else
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begin
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curconstsegment^.concat(new(pai_const,init_symbol(
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strpnew(p^.left^.symtableentry^.mangledname))));
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end; *)
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end
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else
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Message(cg_e_illegal_expression);
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end
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else
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{ allow typeof(Object type)}
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if (p^.treetype=inlinen) and
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(p^.inlinenumber=in_typeof_x) then
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begin
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if (p^.left^.treetype=typen) then
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begin
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curconstsegment^.concat(new(pai_const_symbol,
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initname(pobjectdef(p^.left^.resulttype)^.vmt_mangledname)));
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end
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else
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Message(cg_e_illegal_expression);
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end
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else
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Message(cg_e_illegal_expression);
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disposetree(p);
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end;
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setdef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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if p^.treetype=setconstn then
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begin
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{ we only allow const sets }
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if assigned(p^.left) then
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Message(cg_e_illegal_expression)
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else
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begin
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{$ifdef i386}
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for l:=0 to def^.size-1 do
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value_set^[l])));
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{$endif}
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{$ifdef m68k}
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j:=0;
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for l:=0 to ((def^.size-1) div 4) do
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{ HORRIBLE HACK because of endian }
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{ now use intel endian for constant sets }
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begin
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value_set^[j+3])));
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value_set^[j+2])));
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value_set^[j+1])));
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curconstsegment^.concat(new(pai_const,init_8bit(p^.value_set^[j])));
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Inc(j,4);
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end;
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{$endif}
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end;
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end
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else
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Message(cg_e_illegal_expression);
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disposetree(p);
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end;
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enumdef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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if p^.treetype=ordconstn then
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begin
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if is_equal(p^.resulttype,def) then
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curconstsegment^.concat(new(pai_const,init_32bit(p^.value)))
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else
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Message(cg_e_illegal_expression);
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end
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else
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Message(cg_e_illegal_expression);
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disposetree(p);
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end;
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stringdef:
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begin
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p:=comp_expr(true);
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do_firstpass(p);
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{ first take care of prefixes for long and ansi strings }
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case pstringdef(def)^.string_typ of
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st_shortstring:
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begin
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if p^.treetype=stringconstn then
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begin
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if p^.length>=def^.size then
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strlength:=def^.size-1
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else
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strlength:=p^.length;
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curconstsegment^.concat(new(pai_const,init_8bit(strlength)));
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{ this can also handle longer strings }
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getmem(ca,strlength+1);
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move(p^.value_str^,ca^,strlength);
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ca[strlength]:=#0;
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curconstsegment^.concat(new(pai_string,init_length_pchar(ca,strlength)));
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end
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else if is_constcharnode(p) then
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begin
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curconstsegment^.concat(new(pai_string,init(#1+char(byte(p^.value)))));
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strlength:=1;
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end
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else Message(cg_e_illegal_expression);
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if def^.size>strlength then
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begin
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getmem(ca,def^.size-strlength);
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{ def^.size contains also the leading length, so we }
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{ we have to subtract one }
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fillchar(ca[0],def^.size-strlength-1,' ');
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ca[def^.size-strlength-1]:=#0;
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{ this can also handle longer strings }
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curconstsegment^.concat(new(pai_string,init_length_pchar(ca,def^.size-strlength-1)));
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end;
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end;
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{$ifdef UseLongString}
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st_longstring:
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begin
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if is_constcharnode(p) then
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strlength:=1
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else
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strlength:=p^.length;
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{ first write the maximum size }
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curconstsegment^.concat(new(pai_const,init_32bit(strlength)))));
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{ fill byte }
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curconstsegment^.concat(new(pai_const,init_8bit(0)));
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if p^.treetype=stringconstn then
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begin
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getmem(ca,strlength+1);
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move(p^.value_str^,ca^,strlength);
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ca[strlength]:=#0;
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generate_pascii(consts,ca,strlength);
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end
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else if is_constcharnode(p) then
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begin
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consts^.concat(new(pai_const,init_8bit(p^.value)));
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end
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else Message(cg_e_illegal_expression);
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curconstsegment^.concat(new(pai_const,init_8bit(0)));
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end;
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{$endif UseLongString}
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st_ansistring:
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begin
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{ an empty ansi string is nil! }
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if (p^.treetype=stringconstn) and (p^.length=0) then
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curconstsegment^.concat(new(pai_const,init_32bit(0)))
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else
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begin
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if is_constcharnode(p) then
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strlength:=1
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else
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strlength:=p^.length;
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getdatalabel(ll);
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curconstsegment^.concat(new(pai_const_symbol,init(ll)));
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{ first write the maximum size }
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consts^.concat(new(pai_const,init_32bit(strlength)));
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{ second write the real length }
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consts^.concat(new(pai_const,init_32bit(strlength)));
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{ redondent with maxlength but who knows ... (PM) }
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{ third write use count (set to -1 for safety ) }
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consts^.concat(new(pai_const,init_32bit(-1)));
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consts^.concat(new(pai_label,init(ll)));
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if p^.treetype=stringconstn then
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begin
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getmem(ca,strlength+1);
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move(p^.value_str^,ca^,strlength);
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ca[strlength]:=#0;
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consts^.concat(new(pai_string,init_length_pchar(ca,strlength)));
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end
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else if is_constcharnode(p) then
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begin
|
|
consts^.concat(new(pai_const,init_8bit(p^.value)));
|
|
end
|
|
else Message(cg_e_illegal_expression);
|
|
consts^.concat(new(pai_const,init_8bit(0)));
|
|
end;
|
|
end;
|
|
end;
|
|
disposetree(p);
|
|
end;
|
|
arraydef:
|
|
begin
|
|
if token=_LKLAMMER then
|
|
begin
|
|
consume(_LKLAMMER);
|
|
for l:=parraydef(def)^.lowrange to parraydef(def)^.highrange-1 do
|
|
begin
|
|
readtypedconst(parraydef(def)^.elementtype.def,nil,no_change_allowed);
|
|
consume(_COMMA);
|
|
end;
|
|
readtypedconst(parraydef(def)^.elementtype.def,nil,no_change_allowed);
|
|
consume(_RKLAMMER);
|
|
end
|
|
else
|
|
{ if array of char then we allow also a string }
|
|
if is_char(parraydef(def)^.elementtype.def) then
|
|
begin
|
|
p:=comp_expr(true);
|
|
do_firstpass(p);
|
|
if p^.treetype=stringconstn then
|
|
begin
|
|
if p^.length>255 then
|
|
len:=255
|
|
else
|
|
len:=p^.length;
|
|
{$ifndef TP}
|
|
{$ifopt H+}
|
|
setlength(s,len);
|
|
{$else}
|
|
s[0]:=chr(len);
|
|
{$endif}
|
|
{$else}
|
|
s[0]:=chr(len);
|
|
{$endif}
|
|
move(p^.value_str^,s[1],len);
|
|
end
|
|
else
|
|
if is_constcharnode(p) then
|
|
s:=char(byte(p^.value))
|
|
else
|
|
begin
|
|
Message(cg_e_illegal_expression);
|
|
s:='';
|
|
end;
|
|
disposetree(p);
|
|
l:=length(s);
|
|
for i:=Parraydef(def)^.lowrange to Parraydef(def)^.highrange do
|
|
begin
|
|
if i+1-Parraydef(def)^.lowrange<=l then
|
|
begin
|
|
curconstsegment^.concat(new(pai_const,init_8bit(byte(s[1]))));
|
|
delete(s,1,1);
|
|
end
|
|
else
|
|
{Fill the remaining positions with #0.}
|
|
curconstsegment^.concat(new(pai_const,init_8bit(0)));
|
|
end;
|
|
if length(s)>0 then
|
|
Message(parser_e_string_larger_array);
|
|
end
|
|
else
|
|
begin
|
|
{ we want the ( }
|
|
consume(_LKLAMMER);
|
|
end;
|
|
end;
|
|
procvardef:
|
|
begin
|
|
{ Procvars and pointers are no longer compatible. }
|
|
{ under tp: =nil or =var under fpc: =nil or =@var }
|
|
if token=_NIL then
|
|
begin
|
|
curconstsegment^.concat(new(pai_const,init_32bit(0)));
|
|
consume(_NIL);
|
|
exit;
|
|
end
|
|
else
|
|
if not(m_tp_procvar in aktmodeswitches) then
|
|
if token=_KLAMMERAFFE then
|
|
consume(_KLAMMERAFFE);
|
|
getprocvar:=true;
|
|
getprocvardef:=pprocvardef(def);
|
|
p:=comp_expr(true);
|
|
getprocvar:=false;
|
|
do_firstpass(p);
|
|
if codegenerror then
|
|
begin
|
|
disposetree(p);
|
|
exit;
|
|
end;
|
|
{ convert calln to loadn }
|
|
if p^.treetype=calln then
|
|
begin
|
|
if (p^.symtableprocentry^.owner^.symtabletype=objectsymtable) and
|
|
(pobjectdef(p^.symtableprocentry^.owner^.defowner)^.is_class) then
|
|
hp:=genloadmethodcallnode(pprocsym(p^.symtableprocentry),p^.symtableproc,
|
|
getcopy(p^.methodpointer))
|
|
else
|
|
hp:=genloadcallnode(pprocsym(p^.symtableprocentry),p^.symtableproc);
|
|
disposetree(p);
|
|
do_firstpass(hp);
|
|
p:=hp;
|
|
if codegenerror then
|
|
begin
|
|
disposetree(p);
|
|
exit;
|
|
end;
|
|
end
|
|
else if (p^.treetype=addrn) and assigned(p^.left) and
|
|
(p^.left^.treetype=calln) then
|
|
begin
|
|
if (p^.left^.symtableprocentry^.owner^.symtabletype=objectsymtable) and
|
|
(pobjectdef(p^.left^.symtableprocentry^.owner^.defowner)^.is_class) then
|
|
hp:=genloadmethodcallnode(pprocsym(p^.left^.symtableprocentry),
|
|
p^.left^.symtableproc,getcopy(p^.left^.methodpointer))
|
|
else
|
|
hp:=genloadcallnode(pprocsym(p^.left^.symtableprocentry),
|
|
p^.left^.symtableproc);
|
|
disposetree(p);
|
|
do_firstpass(hp);
|
|
p:=hp;
|
|
if codegenerror then
|
|
begin
|
|
disposetree(p);
|
|
exit;
|
|
end;
|
|
end;
|
|
{ let type conversion check everything needed }
|
|
p:=gentypeconvnode(p,def);
|
|
do_firstpass(p);
|
|
if codegenerror then
|
|
begin
|
|
disposetree(p);
|
|
exit;
|
|
end;
|
|
{ remove typeconvn, that will normally insert a lea
|
|
instruction which is not necessary for us }
|
|
if p^.treetype=typeconvn then
|
|
begin
|
|
hp:=p^.left;
|
|
putnode(p);
|
|
p:=hp;
|
|
end;
|
|
{ remove addrn which we also don't need here }
|
|
if p^.treetype=addrn then
|
|
begin
|
|
hp:=p^.left;
|
|
putnode(p);
|
|
p:=hp;
|
|
end;
|
|
{ we now need to have a loadn with a procsym }
|
|
if (p^.treetype=loadn) and
|
|
(p^.symtableentry^.typ=procsym) then
|
|
begin
|
|
curconstsegment^.concat(new(pai_const_symbol,
|
|
initname(pprocsym(p^.symtableentry)^.definition^.mangledname)));
|
|
end
|
|
else
|
|
Message(cg_e_illegal_expression);
|
|
disposetree(p);
|
|
end;
|
|
{ reads a typed constant record }
|
|
recorddef:
|
|
begin
|
|
consume(_LKLAMMER);
|
|
aktpos:=0;
|
|
while token<>_RKLAMMER do
|
|
begin
|
|
s:=pattern;
|
|
consume(_ID);
|
|
consume(_COLON);
|
|
srsym:=precorddef(def)^.symtable^.search(s);
|
|
if srsym=nil then
|
|
begin
|
|
Message1(sym_e_id_not_found,s);
|
|
consume_all_until(_SEMICOLON);
|
|
end
|
|
else
|
|
begin
|
|
{ check position }
|
|
if pvarsym(srsym)^.address<aktpos then
|
|
Message(parser_e_invalid_record_const);
|
|
|
|
{ if needed fill }
|
|
if pvarsym(srsym)^.address>aktpos then
|
|
for i:=1 to pvarsym(srsym)^.address-aktpos do
|
|
curconstsegment^.concat(new(pai_const,init_8bit(0)));
|
|
|
|
{ new position }
|
|
aktpos:=pvarsym(srsym)^.address+pvarsym(srsym)^.vartype.def^.size;
|
|
|
|
{ read the data }
|
|
readtypedconst(pvarsym(srsym)^.vartype.def,nil,no_change_allowed);
|
|
|
|
if token=_SEMICOLON then
|
|
consume(_SEMICOLON)
|
|
else break;
|
|
end;
|
|
end;
|
|
for i:=1 to def^.size-aktpos do
|
|
curconstsegment^.concat(new(pai_const,init_8bit(0)));
|
|
consume(_RKLAMMER);
|
|
end;
|
|
{ reads a typed object }
|
|
objectdef:
|
|
begin
|
|
if ([oo_has_vmt,oo_is_class]*pobjectdef(def)^.objectoptions)<>[] then
|
|
begin
|
|
Message(parser_e_type_const_not_possible);
|
|
consume_all_until(_RKLAMMER);
|
|
end
|
|
else
|
|
begin
|
|
consume(_LKLAMMER);
|
|
aktpos:=0;
|
|
while token<>_RKLAMMER do
|
|
begin
|
|
s:=pattern;
|
|
consume(_ID);
|
|
consume(_COLON);
|
|
srsym:=nil;
|
|
obj:=pobjectdef(def);
|
|
symt:=obj^.symtable;
|
|
while (srsym=nil) and assigned(symt) do
|
|
begin
|
|
srsym:=symt^.search(s);
|
|
if assigned(obj) then
|
|
obj:=obj^.childof;
|
|
if assigned(obj) then
|
|
symt:=obj^.symtable
|
|
else
|
|
symt:=nil;
|
|
end;
|
|
|
|
if srsym=nil then
|
|
begin
|
|
Message1(sym_e_id_not_found,s);
|
|
consume_all_until(_SEMICOLON);
|
|
end
|
|
else
|
|
begin
|
|
{ check position }
|
|
if pvarsym(srsym)^.address<aktpos then
|
|
Message(parser_e_invalid_record_const);
|
|
|
|
{ if needed fill }
|
|
if pvarsym(srsym)^.address>aktpos then
|
|
for i:=1 to pvarsym(srsym)^.address-aktpos do
|
|
curconstsegment^.concat(new(pai_const,init_8bit(0)));
|
|
|
|
{ new position }
|
|
aktpos:=pvarsym(srsym)^.address+pvarsym(srsym)^.vartype.def^.size;
|
|
|
|
{ read the data }
|
|
readtypedconst(pvarsym(srsym)^.vartype.def,nil,no_change_allowed);
|
|
|
|
if token=_SEMICOLON then
|
|
consume(_SEMICOLON)
|
|
else break;
|
|
end;
|
|
end;
|
|
for i:=1 to def^.size-aktpos do
|
|
curconstsegment^.concat(new(pai_const,init_8bit(0)));
|
|
consume(_RKLAMMER);
|
|
end;
|
|
end;
|
|
errordef:
|
|
begin
|
|
{ try to consume something useful }
|
|
if token=_LKLAMMER then
|
|
consume_all_until(_RKLAMMER)
|
|
else
|
|
consume_all_until(_SEMICOLON);
|
|
end;
|
|
else Message(parser_e_type_const_not_possible);
|
|
end;
|
|
end;
|
|
{$ifdef fpc}
|
|
{$maxfpuregisters default}
|
|
{$endif fpc}
|
|
|
|
end.
|
|
{
|
|
$Log$
|
|
Revision 1.64 2000-04-02 09:12:51 florian
|
|
+ constant procedure variables can have a @ in front:
|
|
const p : procedure = @p;
|
|
til now only
|
|
const p : procedure = p;
|
|
was allowed
|
|
|
|
Revision 1.63 2000/02/13 14:21:51 jonas
|
|
* modifications to make the compiler functional when compiled with
|
|
-Or
|
|
|
|
Revision 1.62 2000/02/09 13:23:01 peter
|
|
* log truncated
|
|
|
|
Revision 1.61 2000/01/07 01:14:33 peter
|
|
* updated copyright to 2000
|
|
|
|
Revision 1.60 1999/12/18 14:55:21 florian
|
|
* very basic widestring support
|
|
|
|
Revision 1.59 1999/11/30 10:40:51 peter
|
|
+ ttype, tsymlist
|
|
|
|
Revision 1.58 1999/11/08 18:50:11 florian
|
|
* disposetree for classrefdef added
|
|
|
|
Revision 1.57 1999/11/08 16:24:28 pierre
|
|
* missing disposetree added to avoid memory loss
|
|
|
|
Revision 1.56 1999/11/08 14:02:16 florian
|
|
* problem with "index X"-properties solved
|
|
* typed constants of class references are now allowed
|
|
|
|
Revision 1.55 1999/11/06 14:34:23 peter
|
|
* truncated log to 20 revs
|
|
|
|
Revision 1.54 1999/10/14 14:57:54 florian
|
|
- removed the hcodegen use in the new cg, use cgbase instead
|
|
|
|
Revision 1.53 1999/09/26 21:30:20 peter
|
|
+ constant pointer support which can happend with typecasting like
|
|
const p=pointer(1)
|
|
* better procvar parsing in typed consts
|
|
|
|
Revision 1.52 1999/08/10 12:30:02 pierre
|
|
* avoid unused locals
|
|
|
|
Revision 1.51 1999/08/04 13:03:02 jonas
|
|
* all tokens now start with an underscore
|
|
* PowerPC compiles!!
|
|
|
|
Revision 1.50 1999/08/04 00:23:21 florian
|
|
* renamed i386asm and i386base to cpuasm and cpubase
|
|
|
|
Revision 1.49 1999/08/03 22:03:08 peter
|
|
* moved bitmask constants to sets
|
|
* some other type/const renamings
|
|
|
|
Revision 1.48 1999/07/23 16:05:26 peter
|
|
* alignment is now saved in the symtable
|
|
* C alignment added for records
|
|
* PPU version increased to solve .12 <-> .13 probs
|
|
|
|
} |