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88 lines
2.7 KiB
ObjectPascal
88 lines
2.7 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 2002 by Daniel Mantione
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This unit contains support routines for the variable access
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notifier.
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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 symnot;
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{$i fpcdefs.inc}
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interface
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uses cclasses,symtype;
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type Tnotification_flag=(vn_onread,vn_onwrite,vn_unknown);
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Tnotification_flags=set of Tnotification_flag;
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Tnotification_callback=procedure(not_type:Tnotification_flag;
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symbol:Tsym) of object;
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Tnotification=class(Tlinkedlistitem)
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flags:Tnotification_flags;
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callback:Tnotification_callback;
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id:cardinal;
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constructor create(Aflags:Tnotification_flags;
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Acallback:Tnotification_callback);
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end;
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implementation
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var notification_counter:cardinal;
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constructor Tnotification.create(Aflags:Tnotification_flags;
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Acallback:Tnotification_callback);
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begin
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inherited create;
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flags:=Aflags;
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callback:=Acallback;
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id:=notification_counter;
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inc(notification_counter);
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end;
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begin
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notification_counter:=0;
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end.
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{
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$Log$
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Revision 1.3 2003-10-22 15:22:33 peter
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* fixed unitsym-globalsymtable relation so the uses of a unit
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is counted correctly
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Revision 1.2 2002/12/31 09:55:58 daniel
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+ Notification implementation complete
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+ Add for loop code optimization using notifications
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results in 1.5-1.9% speed improvement in nestloop benchmark
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Optimization incomplete, compiler does not cycle yet with
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notifications enabled.
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Revision 1.1 2002/09/01 08:04:42 daniel
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+ Added read/write notifications of variables. These will be usefull
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for providing information for several optimizations. For example
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the value of the loop variable of a for loop does matter is the
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variable is read after the for loop, but if it's no longer used
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or written, it doesn't matter and this can be used to optimize
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the loop code generation.
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}
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