source: arduino-1-6-7/trunk/fuentes/arduino-ide-amd64/hardware/tools/avr/lib/gcc/avr/4.9.2/plugin/include/objc/objc-tree.def @ 4837

Last change on this file since 4837 was 4837, checked in by daduve, 3 years ago

Adding new version

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1/* This file contains the definitions and documentation for the
2   additional tree codes used in the Objective C front end (see tree.def
3   for the standard codes).
4   Copyright (C) 1990-2014 Free Software Foundation, Inc.
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 3, or (at your option)
11any later version.
12
13GCC is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GCC; see the file COPYING3.  If not see
20<http://www.gnu.org/licenses/>.  */
21
22
23/* Objective-C types.  */
24DEFTREECODE (CLASS_INTERFACE_TYPE, "class_interface_type", tcc_type, 0)
25DEFTREECODE (CLASS_IMPLEMENTATION_TYPE, "class_implementation_type",
26             tcc_type, 0)
27DEFTREECODE (CATEGORY_INTERFACE_TYPE, "category_interface_type", tcc_type, 0)
28DEFTREECODE (CATEGORY_IMPLEMENTATION_TYPE,"category_implementation_type",
29             tcc_type, 0)
30DEFTREECODE (PROTOCOL_INTERFACE_TYPE, "protocol_interface_type", tcc_type, 0)
31
32/* Objective-C decls.  */
33DEFTREECODE (KEYWORD_DECL, "keyword_decl", tcc_declaration, 0)
34DEFTREECODE (INSTANCE_METHOD_DECL, "instance_method_decl", tcc_declaration, 0)
35DEFTREECODE (CLASS_METHOD_DECL, "class_method_decl", tcc_declaration, 0)
36DEFTREECODE (PROPERTY_DECL, "property_decl", tcc_declaration, 0)
37
38/* Objective-C expressions.  */
39DEFTREECODE (MESSAGE_SEND_EXPR, "message_send_expr", tcc_expression, 3)
40DEFTREECODE (CLASS_REFERENCE_EXPR, "class_reference_expr", tcc_expression, 1)
41
42/* This tree is used to represent the expression 'object.property',
43   where 'object' is an Objective-C object and 'property' is an
44   Objective-C property.  Operand 0 is the object (the tree
45   representing the expression), and Operand 1 is the property (the
46   PROPERTY_DECL).  Operand 2 is the 'getter' call, ready to be used;
47   we pregenerate it because it is hard to generate it properly later
48   on.  Operand 3 records whether using the 'getter' call should
49   generate a deprecation warning or not.
50
51   A PROPERTY_REF tree needs to be transformed into 'setter' and
52   'getter' calls at some point; at the moment this happens in two
53   places:
54
55     * if we detect that a modify expression is being applied to a
56       PROPERTY_REF, then we transform that into a 'getter' call (this
57       happens in build_modify_expr() or cp_build_modify_expr()).
58
59    * else, it will remain as a PROPERTY_REF until we get to
60      gimplification; at that point, we convert each PROPERTY_REF into
61      a 'getter' call during ObjC/ObjC++ gimplify.  At that point, it
62      is quite hard to build a 'getter' call, but we have already built
63      it and we just need to swap Operand 2 in, and emit the deprecation
64      warnings from Operand 3 if needed.
65
66  Please note that when the Objective-C 2.0 "dot-syntax" 'object.component'
67  is encountered, where 'component' is not a property but there are valid
68  setter/getter methods for it, an artificial PROPERTY_DECL is generated
69  and used in the PROPERTY_REF.  */
70DEFTREECODE (PROPERTY_REF, "property_ref", tcc_expression, 4)
71
72/*
73Local variables:
74mode:c
75End:
76*/
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