gcc/cp/cp-tree.def

   1 /* This file contains the definitions and documentation for the
   2    additional tree codes used in the GNU C++ compiler (see tree.def
   3    for the standard codes).
   4    Copyright (C) 1987, 1988, 1990, 1993 Free Software Foundation, Inc.
   5    Hacked by Michael Tiemann (tiemann@cygnus.com)
   6
   7 This file is part of GNU CC.
   8
   9 GNU CC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2, or (at your option)
  12 any later version.
  13
  14 GNU CC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GNU CC; see the file COPYING.  If not, write to
  21 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  22
  23
  24 /* Reference to the contents of an offset
  25    (a value whose type is an OFFSET_TYPE).
  26    Operand 0 is the object within which the offset is taken.
  27    Operand 1 is the offset.  The language independent OFFSET_REF
  28    just won't work for us.  */
  29 DEFTREECODE (CP_OFFSET_REF, "cp_offset_ref", "r", 2)
  30
  31 /* For DELETE_EXPR, operand 0 is the store to be destroyed.
  32    Operand 1 is the value to pass to the destroying function
  33    saying whether the store should be deallocated as well.  */
  34 DEFTREECODE (DELETE_EXPR, "dl_expr", "e", 2)
  35
  36 /* Value is reference to particular overloaded class method.
  37    Operand 0 is the class name (an IDENTIFIER_NODE);
  38    operand 1 is the field (also an IDENTIFIER_NODE).
  39    The COMPLEXITY field holds the class level (usually 0).  */
  40 DEFTREECODE (SCOPE_REF, "scope_ref", "r", 2)
  41
  42 /* When composing an object with a member, this is the result.
  43    Operand 0 is the object.  Operand 1 is the member (usually
  44    a dereferenced pointer to member).  */
  45 DEFTREECODE (MEMBER_REF, "member_ref", "r", 2)
  46
  47 /* Type conversion operator in C++.  TREE_TYPE is type that this
  48    operator converts to.  Operand is expression to be converted.  */
  49 DEFTREECODE (TYPE_EXPR, "type_expr", "e", 1)
  50
  51 /* For CPLUS_NEW_EXPR, operand 0 is function which performs initialization,
  52    operand 1 is argument list to initialization function,
  53    and operand 2 is the slot which was allocated for this expression.  */
  54 DEFTREECODE (NEW_EXPR, "nw_expr", "e", 3)
  55
  56 /* Distinguish variables that are only used to identify exceptions
  57    that were caught.  Only the DECL_NAME (and TREE_CHAIN)
  58    is really used.  */
  59 DEFTREECODE (CPLUS_CATCH_DECL, "catch_decl", "d", 0)
  60
  61 /* Template definition.  The following fields have the specified uses,
  62    although there are other macros in cp-tree.h that should be used for
  63    accessing this data.
  64         DECL_ARGUMENTS          template parm vector
  65         DECL_TEMPLATE_INFO      template text &c
  66         DECL_VINDEX             list of instantiations already produced;
  67                                 only done for functions so far
  68    For class template:
  69         DECL_INITIAL            associated templates (methods &c)
  70         DECL_RESULT             null
  71    For non-class templates:
  72         TREE_TYPE               type of object to be constructed
  73         DECL_RESULT             decl for object to be created
  74                                 (e.g., FUNCTION_DECL with tmpl parms used)
  75  */
  76 DEFTREECODE (TEMPLATE_DECL, "template_decl", "d", 0)
  77
  78 /* Index into a template parameter list.  This parameter must be a type.
  79    Use TYPE_FIELDS to find parmlist and index.  */
  80 DEFTREECODE (TEMPLATE_TYPE_PARM, "template_type_parm", "t", 0)
  81
  82 /* Index into a template parameter list.  This parameter must not be a
  83    type.  */
  84 DEFTREECODE (TEMPLATE_CONST_PARM, "template_const_parm", "c", 2)
  85
  86 /* For uninstantiated parameterized types.
  87         TYPE_VALUES     tree list:
  88                 TREE_PURPOSE    template decl
  89                 TREE_VALUE      parm vector
  90                 TREE_CHAIN      null
  91    Other useful fields to be defined later.  */
  92 DEFTREECODE (UNINSTANTIATED_P_TYPE, "uninstantiated_p_type", "t", 0)
  93
  94 /* A thunk is a stub function.
  95
  96    Thunks are used to implement multiple inheritance:
  97    At run-time, such a thunk subtracts THUNK_DELTA (an int, not a tree)
  98    from the this pointer, and then jumps to DECL_INITIAL
  99    (which is an ADDR_EXPR whose operand is a FUNCTION_DECL).
 100
 101    Other kinds of thunks may be defined later. */
 102 DEFTREECODE (THUNK_DECL, "thunk_decl", "d", 0)