| /* This file contains the definitions and documentation for the |
| additional tree codes used in the Objective C front end (see tree.def |
| for the standard codes). |
| Copyright (C) 1990-2014 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| |
| /* Objective-C types. */ |
| DEFTREECODE (CLASS_INTERFACE_TYPE, "class_interface_type", tcc_type, 0) |
| DEFTREECODE (CLASS_IMPLEMENTATION_TYPE, "class_implementation_type", |
| tcc_type, 0) |
| DEFTREECODE (CATEGORY_INTERFACE_TYPE, "category_interface_type", tcc_type, 0) |
| DEFTREECODE (CATEGORY_IMPLEMENTATION_TYPE,"category_implementation_type", |
| tcc_type, 0) |
| DEFTREECODE (PROTOCOL_INTERFACE_TYPE, "protocol_interface_type", tcc_type, 0) |
| |
| /* Objective-C decls. */ |
| DEFTREECODE (KEYWORD_DECL, "keyword_decl", tcc_declaration, 0) |
| DEFTREECODE (INSTANCE_METHOD_DECL, "instance_method_decl", tcc_declaration, 0) |
| DEFTREECODE (CLASS_METHOD_DECL, "class_method_decl", tcc_declaration, 0) |
| DEFTREECODE (PROPERTY_DECL, "property_decl", tcc_declaration, 0) |
| |
| /* Objective-C expressions. */ |
| DEFTREECODE (MESSAGE_SEND_EXPR, "message_send_expr", tcc_expression, 3) |
| DEFTREECODE (CLASS_REFERENCE_EXPR, "class_reference_expr", tcc_expression, 1) |
| |
| /* This tree is used to represent the expression 'object.property', |
| where 'object' is an Objective-C object and 'property' is an |
| Objective-C property. Operand 0 is the object (the tree |
| representing the expression), and Operand 1 is the property (the |
| PROPERTY_DECL). Operand 2 is the 'getter' call, ready to be used; |
| we pregenerate it because it is hard to generate it properly later |
| on. Operand 3 records whether using the 'getter' call should |
| generate a deprecation warning or not. |
| |
| A PROPERTY_REF tree needs to be transformed into 'setter' and |
| 'getter' calls at some point; at the moment this happens in two |
| places: |
| |
| * if we detect that a modify expression is being applied to a |
| PROPERTY_REF, then we transform that into a 'getter' call (this |
| happens in build_modify_expr() or cp_build_modify_expr()). |
| |
| * else, it will remain as a PROPERTY_REF until we get to |
| gimplification; at that point, we convert each PROPERTY_REF into |
| a 'getter' call during ObjC/ObjC++ gimplify. At that point, it |
| is quite hard to build a 'getter' call, but we have already built |
| it and we just need to swap Operand 2 in, and emit the deprecation |
| warnings from Operand 3 if needed. |
| |
| Please note that when the Objective-C 2.0 "dot-syntax" 'object.component' |
| is encountered, where 'component' is not a property but there are valid |
| setter/getter methods for it, an artificial PROPERTY_DECL is generated |
| and used in the PROPERTY_REF. */ |
| DEFTREECODE (PROPERTY_REF, "property_ref", tcc_expression, 4) |
| |
| /* |
| Local variables: |
| mode:c |
| End: |
| */ |
