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1 /* Routines dealing with ObjC encoding of types
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2 Copyright (C) 1992-2017 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 #ifndef GCC_OBJC_ENCODING_H
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21 #define GCC_OBJC_ENCODING_H
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22
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23 /* This is used to initialize the obstacks used by encoding. It
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24 should be called before any encoding function is used. It is
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25 usually done in objc_init(). */
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26 extern void objc_encoding_init (void);
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27
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28 /* Encode a method prototype. The format is described in
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29 gcc/doc/objc.texi, section 'Method signatures'. */
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30 extern tree encode_method_prototype (tree method_decl);
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31
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32 /* This is used to implement @encode(). See gcc/doc/objc.texi,
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33 section '@encode'. */
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34 extern tree objc_build_encode_expr (tree type);
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35
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36 /* (Decide if these can ever be validly changed.) */
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37 #define OBJC_ENCODE_INLINE_DEFS 0
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38 #define OBJC_ENCODE_DONT_INLINE_DEFS 1
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39
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40 /* Encode the attributes of a property. */
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41 extern tree objc_v2_encode_prop_attr (tree property);
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42
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43 /* Encode the type of a field. Return an identifier with the type
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44 encoding for the field. The type encoding is a null-terminated
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45 string. */
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46 extern tree encode_field_decl (tree field_decl);
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47
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48 /* Tells "encode_pointer/encode_aggregate" whether we are generating
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49 type descriptors for instance variables (as opposed to methods).
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50 Type descriptors for instance variables contain more information
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51 than methods (for static typing and embedded structures).
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52
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53 TODO: Replace this global variable with an argument that is passed
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54 to the various encode() functions.
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55
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56 TODO: Change it to a 'bool'. */
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57 extern int generating_instance_variables;
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58
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59 #endif /* GCC_OBJC_ENCODING_H */
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