gcc/f/expr.h

   1 /* expr.h -- Public #include File (module.h template V1.0)
   2    Copyright (C) 1995, 1996 Free Software Foundation, Inc.
   3    Contributed by James Craig Burley.
   4
   5 This file is part of GNU Fortran.
   6
   7 GNU Fortran is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU Fortran is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU Fortran; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.
  21
  22    Owning Modules:
  23       expr.c
  24
  25    Modifications:
  26 */
  27
  28 /* Allow multiple inclusion to work. */
  29
  30 #ifndef _H_f_expr
  31 #define _H_f_expr
  32
  33 /* Simple definitions and enumerations. */
  34
  35 typedef enum
  36   {
  37     FFEEXPR_contextLET,
  38     FFEEXPR_contextASSIGN,
  39     FFEEXPR_contextIOLIST,
  40     FFEEXPR_contextPARAMETER,
  41     FFEEXPR_contextSUBROUTINEREF,
  42     FFEEXPR_contextDATA,
  43     FFEEXPR_contextIF,
  44     FFEEXPR_contextARITHIF,
  45     FFEEXPR_contextDO,
  46     FFEEXPR_contextDOWHILE,
  47     FFEEXPR_contextFORMAT,
  48     FFEEXPR_contextAGOTO,
  49     FFEEXPR_contextCGOTO,
  50     FFEEXPR_contextCHARACTERSIZE,
  51     FFEEXPR_contextEQUIVALENCE,
  52     FFEEXPR_contextSTOP,
  53     FFEEXPR_contextRETURN,
  54     FFEEXPR_contextSFUNCDEF,
  55     FFEEXPR_contextINCLUDE,
  56     FFEEXPR_contextWHERE,
  57     FFEEXPR_contextSELECTCASE,
  58     FFEEXPR_contextCASE,
  59     FFEEXPR_contextDIMLIST,
  60     FFEEXPR_contextDIMLISTCOMMON,       /* Dim list in COMMON stmt. */
  61     FFEEXPR_contextFILEASSOC,   /* ASSOCIATEVARIABLE=. */
  62     FFEEXPR_contextFILEINT,     /* IOSTAT=. */
  63     FFEEXPR_contextFILEDFINT,   /* NEXTREC=. */
  64     FFEEXPR_contextFILELOG,     /* NAMED=. */
  65     FFEEXPR_contextFILENUM,     /* Numerical expression. */
  66     FFEEXPR_contextFILECHAR,    /* Character expression. */
  67     FFEEXPR_contextFILENUMCHAR, /* READ KEYxyz=. */
  68     FFEEXPR_contextFILEDFCHAR,  /* Default kind character expression. */
  69     FFEEXPR_contextFILEKEY,     /* OPEN KEY=. */
  70     FFEEXPR_contextFILEEXTFUNC, /* USEROPEN=. */
  71     FFEEXPR_contextFILEUNIT,    /* READ/WRITE UNIT=. */
  72     FFEEXPR_contextFILEUNIT_DF, /* DEFINE FILE unit (no "(" after it). */
  73     FFEEXPR_contextFILEFORMATNML,       /* [FMT=] or [NML=]. */
  74     FFEEXPR_contextFILEFORMAT,  /* FMT=. */
  75     FFEEXPR_contextFILENAMELIST,/* NML=. */
  76     FFEEXPR_contextFILENUMAMBIG,/* BACKSPACE, ENDFILE, REWIND, UNLOCK...
  77                                    where at e.g. BACKSPACE(, if COMMA seen
  78                                    before ), it is ok. */
  79     FFEEXPR_contextFILEUNITAMBIG,       /* READ(, if COMMA seen before ), ok. */
  80     FFEEXPR_contextFILEVXTCODE, /* ENCODE/DECODE third arg (scalar/array). */
  81     FFEEXPR_contextALLOCATE,    /* ALLOCATE objects (weird). */
  82     FFEEXPR_contextDEALLOCATE,  /* DEALLOCATE objects (weird). */
  83     FFEEXPR_contextHEAPSTAT,    /* ALLOCATE/DEALLOCATE STAT= variable. */
  84     FFEEXPR_contextKINDTYPE,    /* KIND=. */
  85     FFEEXPR_contextINITVAL,     /* R426 =initialization-expr. */
  86     FFEEXPR_contextNULLIFY,     /* Pointer names only (F90) or pointers. */
  87     FFEEXPR_contextIOLISTDF,    /* IOLIST w/internal file (V112 9-14 30,31). */
  88     FFEEXPR_contextINDEX_,      /* Element dimension or substring value. */
  89     FFEEXPR_contextEQVINDEX_,   /* EQUIVALENCE element dimension. */
  90     FFEEXPR_contextDATAIMPDOINDEX_,     /* INDEX in DATAIMPDO context. */
  91     FFEEXPR_contextIMPDOITEM_,
  92     FFEEXPR_contextIMPDOITEMDF_,/* to ...ITEM_ as IOLISTDF is to IOLIST. */
  93     FFEEXPR_contextIMPDOCTRL_,
  94     FFEEXPR_contextDATAIMPDOITEM_,
  95     FFEEXPR_contextDATAIMPDOCTRL_,
  96     FFEEXPR_contextLOC_,
  97     FFEEXPR_contextACTUALARG_,  /* Actual arg to function or subroutine;
  98                                    turns into ACTUALARGEXPR_ if tokens not
  99                                    NAME (CLOSE_PAREN/COMMA) or PERCENT.... */
 100     FFEEXPR_contextACTUALARGEXPR_,      /* Like LET but disallow CHAR*(*)
 101                                            concats. */
 102     FFEEXPR_contextINDEXORACTUALARG_,   /* "CHARACTER FOO; PRINT *,FOO(?". */
 103     FFEEXPR_contextINDEXORACTUALARGEXPR_,       /* ? not NAME
 104                                                    (CLOSE_PAREN/COMMA). */
 105     FFEEXPR_contextSFUNCDEFINDEX_,      /* INDEX_ within stmt-func def. */
 106     FFEEXPR_contextSFUNCDEFACTUALARG_,
 107     FFEEXPR_contextSFUNCDEFACTUALARGEXPR_,
 108     FFEEXPR_contextSFUNCDEFINDEXORACTUALARG_,
 109     FFEEXPR_contextSFUNCDEFINDEXORACTUALARGEXPR_,
 110     FFEEXPR_contextPAREN_,      /* Rhs paren except in LET context. */
 111     FFEEXPR_contextPARENFILENUM_,       /* Either PAREN or FILENUM context. */
 112     FFEEXPR_contextPARENFILEUNIT_,      /* Either PAREN or FILEUNIT context. */
 113     FFEEXPR_context
 114   } ffeexprContext;
 115
 116 /* Typedefs. */
 117
 118
 119 /* Include files needed by this one. */
 120
 121 #include "bld.h"
 122 #include "lex.h"
 123 #include "malloc.h"
 124
 125 /* Structure definitions. */
 126
 127 typedef ffelexHandler (*ffeexprCallback) (ffelexToken ft, ffebld expr,
 128                                           ffelexToken t);
 129
 130 /* Global objects accessed by users of this module. */
 131
 132
 133 /* Declare functions with prototypes. */
 134
 135 ffebld ffeexpr_collapse_convert (ffebld expr, ffelexToken t);
 136 ffebld ffeexpr_collapse_paren (ffebld expr, ffelexToken t);
 137 ffebld ffeexpr_collapse_uplus (ffebld expr, ffelexToken t);
 138 ffebld ffeexpr_collapse_uminus (ffebld expr, ffelexToken t);
 139 ffebld ffeexpr_collapse_not (ffebld expr, ffelexToken t);
 140 ffebld ffeexpr_collapse_add (ffebld expr, ffelexToken t);
 141 ffebld ffeexpr_collapse_subtract (ffebld expr, ffelexToken t);
 142 ffebld ffeexpr_collapse_multiply (ffebld expr, ffelexToken t);
 143 ffebld ffeexpr_collapse_divide (ffebld expr, ffelexToken t);
 144 ffebld ffeexpr_collapse_power (ffebld expr, ffelexToken t);
 145 ffebld ffeexpr_collapse_concatenate (ffebld expr, ffelexToken t);
 146 ffebld ffeexpr_collapse_lt (ffebld expr, ffelexToken t);
 147 ffebld ffeexpr_collapse_le (ffebld expr, ffelexToken t);
 148 ffebld ffeexpr_collapse_eq (ffebld expr, ffelexToken t);
 149 ffebld ffeexpr_collapse_ne (ffebld expr, ffelexToken t);
 150 ffebld ffeexpr_collapse_gt (ffebld expr, ffelexToken t);
 151 ffebld ffeexpr_collapse_ge (ffebld expr, ffelexToken t);
 152 ffebld ffeexpr_collapse_and (ffebld expr, ffelexToken t);
 153 ffebld ffeexpr_collapse_or (ffebld expr, ffelexToken t);
 154 ffebld ffeexpr_collapse_xor (ffebld expr, ffelexToken t);
 155 ffebld ffeexpr_collapse_eqv (ffebld expr, ffelexToken t);
 156 ffebld ffeexpr_collapse_neqv (ffebld expr, ffelexToken t);
 157 ffebld ffeexpr_collapse_symter (ffebld expr, ffelexToken t);
 158 ffebld ffeexpr_collapse_funcref (ffebld expr, ffelexToken t);
 159 ffebld ffeexpr_collapse_arrayref (ffebld expr, ffelexToken t);
 160 ffebld ffeexpr_collapse_substr (ffebld expr, ffelexToken t);
 161 ffebld ffeexpr_convert (ffebld source, ffelexToken source_token,
 162             ffelexToken dest_token, ffeinfoBasictype bt, ffeinfoKindtype kt,
 163                         ffeinfoRank rk, ffetargetCharacterSize sz,
 164                         ffeexprContext context);
 165 ffebld ffeexpr_convert_expr (ffebld source, ffelexToken source_token,
 166                              ffebld dest, ffelexToken dest_token,
 167                              ffeexprContext context);
 168 ffebld ffeexpr_convert_to_sym (ffebld source, ffelexToken source_token,
 169                                ffesymbol dest, ffelexToken dest_token);
 170 void ffeexpr_init_2 (void);
 171 ffelexHandler ffeexpr_rhs (mallocPool pool, ffeexprContext context,
 172                            ffeexprCallback callback);
 173 ffelexHandler ffeexpr_lhs (mallocPool pool, ffeexprContext context,
 174                            ffeexprCallback callback);
 175 void ffeexpr_terminate_2 (void);
 176 void ffeexpr_type_combine (ffeinfoBasictype *nbt, ffeinfoKindtype *nkt,
 177                            ffeinfoBasictype lbt, ffeinfoKindtype lkt,
 178                            ffeinfoBasictype rbt, ffeinfoKindtype rkt,
 179                            ffelexToken t);
 180
 181 /* Define macros. */
 182
 183 #define ffeexpr_init_0()
 184 #define ffeexpr_init_1()
 185 #define ffeexpr_init_3()
 186 #define ffeexpr_init_4()
 187 #define ffeexpr_terminate_0()
 188 #define ffeexpr_terminate_1()
 189 #define ffeexpr_terminate_3()
 190 #define ffeexpr_terminate_4()
 191
 192 /* End of #include file. */
 193
 194 #endif