1*404b540aSrobert /* Structures that hang off cpp_identifier, for PCH. 2*404b540aSrobert Copyright (C) 1986, 1987, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 3*404b540aSrobert 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. 4*404b540aSrobert 5*404b540aSrobert This program is free software; you can redistribute it and/or modify it 6*404b540aSrobert under the terms of the GNU General Public License as published by the 7*404b540aSrobert Free Software Foundation; either version 2, or (at your option) any 8*404b540aSrobert later version. 9*404b540aSrobert 10*404b540aSrobert This program is distributed in the hope that it will be useful, 11*404b540aSrobert but WITHOUT ANY WARRANTY; without even the implied warranty of 12*404b540aSrobert MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13*404b540aSrobert GNU General Public License for more details. 14*404b540aSrobert 15*404b540aSrobert You should have received a copy of the GNU General Public License 16*404b540aSrobert along with this program; if not, write to the Free Software 17*404b540aSrobert Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 18*404b540aSrobert 19*404b540aSrobert #include "cpplib.h" 20*404b540aSrobert 21*404b540aSrobert #if !defined (HAVE_UCHAR) && !defined (IN_GCC) 22*404b540aSrobert typedef unsigned char uchar; 23*404b540aSrobert #endif 24*404b540aSrobert 25*404b540aSrobert #define U (const unsigned char *) /* Intended use: U"string" */ 26*404b540aSrobert 27*404b540aSrobert /* Chained list of answers to an assertion. */ 28*404b540aSrobert struct answer GTY(()) 29*404b540aSrobert { 30*404b540aSrobert struct answer *next; 31*404b540aSrobert unsigned int count; 32*404b540aSrobert cpp_token GTY ((length ("%h.count"))) first[1]; 33*404b540aSrobert }; 34*404b540aSrobert 35*404b540aSrobert /* Each macro definition is recorded in a cpp_macro structure. 36*404b540aSrobert Variadic macros cannot occur with traditional cpp. */ 37*404b540aSrobert struct cpp_macro GTY(()) 38*404b540aSrobert { 39*404b540aSrobert /* Parameters, if any. */ 40*404b540aSrobert cpp_hashnode ** GTY ((nested_ptr (union tree_node, 41*404b540aSrobert "%h ? CPP_HASHNODE (GCC_IDENT_TO_HT_IDENT (%h)) : NULL", 42*404b540aSrobert "%h ? HT_IDENT_TO_GCC_IDENT (HT_NODE (%h)) : NULL"), 43*404b540aSrobert length ("%h.paramc"))) 44*404b540aSrobert params; 45*404b540aSrobert 46*404b540aSrobert /* Replacement tokens (ISO) or replacement text (traditional). See 47*404b540aSrobert comment at top of cpptrad.c for how traditional function-like 48*404b540aSrobert macros are encoded. */ 49*404b540aSrobert union cpp_macro_u 50*404b540aSrobert { 51*404b540aSrobert cpp_token * GTY ((tag ("0"), length ("%0.count"))) tokens; 52*404b540aSrobert const unsigned char * GTY ((tag ("1"))) text; 53*404b540aSrobert } GTY ((desc ("%1.traditional"))) exp; 54*404b540aSrobert 55*404b540aSrobert /* Definition line number. */ 56*404b540aSrobert source_location line; 57*404b540aSrobert 58*404b540aSrobert /* Number of tokens in expansion, or bytes for traditional macros. */ 59*404b540aSrobert unsigned int count; 60*404b540aSrobert 61*404b540aSrobert /* Number of parameters. */ 62*404b540aSrobert unsigned short paramc; 63*404b540aSrobert 64*404b540aSrobert /* If a function-like macro. */ 65*404b540aSrobert unsigned int fun_like : 1; 66*404b540aSrobert 67*404b540aSrobert /* If a variadic macro. */ 68*404b540aSrobert unsigned int variadic : 1; 69*404b540aSrobert 70*404b540aSrobert /* If macro defined in system header. */ 71*404b540aSrobert unsigned int syshdr : 1; 72*404b540aSrobert 73*404b540aSrobert /* Nonzero if it has been expanded or had its existence tested. */ 74*404b540aSrobert unsigned int used : 1; 75*404b540aSrobert 76*404b540aSrobert /* Indicate which field of 'exp' is in use. */ 77*404b540aSrobert unsigned int traditional : 1; 78*404b540aSrobert }; 79