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8d08fdba MS |
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 | |
e9fa0c7c | 21 | the Free Software Foundation, 59 Temple Place - Suite 330, |
9efb75d6 | 22 | Boston, MA 02111-1307, USA. */ |
8d08fdba MS |
23 | |
24 | ||
25 | /* Reference to the contents of an offset | |
26 | (a value whose type is an OFFSET_TYPE). | |
27 | Operand 0 is the object within which the offset is taken. | |
28 | Operand 1 is the offset. The language independent OFFSET_REF | |
29 | just won't work for us. */ | |
30 | DEFTREECODE (CP_OFFSET_REF, "cp_offset_ref", "r", 2) | |
31 | ||
32 | /* For DELETE_EXPR, operand 0 is the store to be destroyed. | |
33 | Operand 1 is the value to pass to the destroying function | |
34 | saying whether the store should be deallocated as well. */ | |
35 | DEFTREECODE (DELETE_EXPR, "dl_expr", "e", 2) | |
a28e3c7f | 36 | DEFTREECODE (VEC_DELETE_EXPR, "vec_dl_expr", "e", 2) |
8d08fdba | 37 | |
f30432d7 MS |
38 | /* For a UNSAVE_EXPR, operand 0 is the value to unsave. By unsave, we |
39 | mean that all _EXPRs such as TARGET_EXPRs, SAVE_EXPRs, | |
2ee887f2 | 40 | CALL_EXPRs and RTL_EXPRs, that are protected |
f30432d7 MS |
41 | from being evaluated more than once should be reset so that a new |
42 | expand_expr call of this expr will cause those to be re-evaluated. | |
43 | This is useful when we want to reuse a tree in different places, | |
44 | but where we must re-expand. */ | |
45 | DEFTREECODE (UNSAVE_EXPR, "unsave_expr", "e", 1) | |
46 | ||
8d08fdba MS |
47 | /* Value is reference to particular overloaded class method. |
48 | Operand 0 is the class name (an IDENTIFIER_NODE); | |
49 | operand 1 is the field (also an IDENTIFIER_NODE). | |
50 | The COMPLEXITY field holds the class level (usually 0). */ | |
51 | DEFTREECODE (SCOPE_REF, "scope_ref", "r", 2) | |
52 | ||
53 | /* When composing an object with a member, this is the result. | |
54 | Operand 0 is the object. Operand 1 is the member (usually | |
55 | a dereferenced pointer to member). */ | |
56 | DEFTREECODE (MEMBER_REF, "member_ref", "r", 2) | |
57 | ||
58 | /* Type conversion operator in C++. TREE_TYPE is type that this | |
59 | operator converts to. Operand is expression to be converted. */ | |
60 | DEFTREECODE (TYPE_EXPR, "type_expr", "e", 1) | |
61 | ||
62 | /* For CPLUS_NEW_EXPR, operand 0 is function which performs initialization, | |
63 | operand 1 is argument list to initialization function, | |
64 | and operand 2 is the slot which was allocated for this expression. */ | |
65 | DEFTREECODE (NEW_EXPR, "nw_expr", "e", 3) | |
a28e3c7f | 66 | DEFTREECODE (VEC_NEW_EXPR, "vec_nw_expr", "e", 3) |
8d08fdba | 67 | |
8d2733ca MS |
68 | /* A throw expression. operand 0 is the expression, if there was one, |
69 | else it is NULL_TREE. */ | |
70 | DEFTREECODE (THROW_EXPR, "throw_expr", "e", 1) | |
8d08fdba MS |
71 | |
72 | /* Template definition. The following fields have the specified uses, | |
73 | although there are other macros in cp-tree.h that should be used for | |
74 | accessing this data. | |
75 | DECL_ARGUMENTS template parm vector | |
76 | DECL_TEMPLATE_INFO template text &c | |
77 | DECL_VINDEX list of instantiations already produced; | |
78 | only done for functions so far | |
79 | For class template: | |
80 | DECL_INITIAL associated templates (methods &c) | |
81 | DECL_RESULT null | |
82 | For non-class templates: | |
83 | TREE_TYPE type of object to be constructed | |
84 | DECL_RESULT decl for object to be created | |
85 | (e.g., FUNCTION_DECL with tmpl parms used) | |
86 | */ | |
87 | DEFTREECODE (TEMPLATE_DECL, "template_decl", "d", 0) | |
88 | ||
89 | /* Index into a template parameter list. This parameter must be a type. | |
90 | Use TYPE_FIELDS to find parmlist and index. */ | |
91 | DEFTREECODE (TEMPLATE_TYPE_PARM, "template_type_parm", "t", 0) | |
92 | ||
5566b478 MS |
93 | /* A type designated by 'typename T::t'. */ |
94 | DEFTREECODE (TYPENAME_TYPE, "typename_type", "t", 0) | |
95 | ||
8d08fdba MS |
96 | /* Index into a template parameter list. This parameter must not be a |
97 | type. */ | |
98 | DEFTREECODE (TEMPLATE_CONST_PARM, "template_const_parm", "c", 2) | |
99 | ||
8926095f MS |
100 | /* A thunk is a stub function. |
101 | ||
102 | Thunks are used to implement multiple inheritance: | |
103 | At run-time, such a thunk subtracts THUNK_DELTA (an int, not a tree) | |
104 | from the this pointer, and then jumps to DECL_INITIAL | |
105 | (which is an ADDR_EXPR whose operand is a FUNCTION_DECL). | |
106 | ||
107 | Other kinds of thunks may be defined later. */ | |
108 | DEFTREECODE (THUNK_DECL, "thunk_decl", "d", 0) | |
a9aedbc2 MS |
109 | |
110 | /* A namespace declaration. */ | |
111 | DEFTREECODE (NAMESPACE_DECL, "namespace_decl", "d", 0) | |
cffa8729 MS |
112 | |
113 | /* A using declaration. DECL_INITIAL contains the specified scope. | |
114 | This is not an alias, but is later expanded into multiple aliases. */ | |
115 | DEFTREECODE (USING_DECL, "using_decl", "d", 0) | |
5566b478 MS |
116 | |
117 | DEFTREECODE (LOOKUP_EXPR, "lookup_expr", "e", 2) | |
118 | DEFTREECODE (MODOP_EXPR, "modop_expr", "e", 3) | |
119 | DEFTREECODE (CAST_EXPR, "cast_expr", "e", 1) | |
120 | DEFTREECODE (REINTERPRET_CAST_EXPR, "reinterpret_cast_expr", "e", 1) | |
121 | DEFTREECODE (SIZEOF_EXPR, "sizeof_expr", "e", 1) | |
122 | DEFTREECODE (ARROW_EXPR, "arrow_expr", "e", 1) | |
123 | DEFTREECODE (DOTSTAR_EXPR, "dotstar_expr", "e", 2) | |
124 | ||
125 | DEFTREECODE (EXPR_STMT, "expr_stmt", "e", 1) | |
126 | DEFTREECODE (COMPOUND_STMT, "compound_stmt", "e", 1) | |
127 | DEFTREECODE (DECL_STMT, "decl_stmt", "e", 4) | |
128 | DEFTREECODE (IF_STMT, "if_stmt", "e", 3) | |
129 | DEFTREECODE (FOR_STMT, "for_stmt", "e", 4) | |
130 | DEFTREECODE (WHILE_STMT, "while_stmt", "e", 2) | |
131 | DEFTREECODE (DO_STMT, "do_stmt", "e", 2) | |
132 | DEFTREECODE (RETURN_STMT, "return_stmt", "e", 1) | |
133 | DEFTREECODE (BREAK_STMT, "break_stmt", "e", 0) | |
134 | DEFTREECODE (CONTINUE_STMT, "continue_stmt", "e", 0) | |
135 | DEFTREECODE (SWITCH_STMT, "switch_stmt", "e", 2) | |
136 | DEFTREECODE (GOTO_STMT, "goto_stmt", "e", 1) | |
137 | ||
138 | DEFTREECODE (CTOR_INITIALIZER, "ctor_initializer", "e", 2) | |
139 | DEFTREECODE (CASE_LABEL, "case_label", "e", 2) |