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Revision 1.2, Sat Nov 17 16:39:45 2007 UTC (16 years, 6 months ago) by espie
simplify dynamic variable handling a great deal: first remove all usage of Varq_Append by building the string directly. then replace `common' handling with specialized handling for dynamic strings (since they no longer need a buffer). Finally, identify the place where the variable value needs to be copied because it's going to be free'd or erased soon, and finally, use simple char* pointers. Shaves about 80 bytes off every gnode structure, and kills quite a few unnecessary malloc()s as well. |
#ifndef SYMTABLE_H #define SYMTABLE_H /* $OpenPackages$ */ /* $OpenBSD: symtable.h,v 1.2 2007/11/17 16:39:45 espie Exp $ */ /* * Copyright (c) 2001 Marc Espie. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #define LOCAL_SIZE 7 /* SymTable is private to var.c, but is declared here to allow for local declaration of context tables */ struct SymTable_ { char *locals[LOCAL_SIZE]; }; #endif