]> git.sur5r.net Git - cc65/blob - src/cc65/declare.h
Cleanup. Added a few general purpose functions.
[cc65] / src / cc65 / declare.h
1 /*****************************************************************************/
2 /*                                                                           */
3 /*                                 declare.h                                 */
4 /*                                                                           */
5 /*                 Parse variable and function declarations                  */
6 /*                                                                           */
7 /*                                                                           */
8 /*                                                                           */
9 /* (C) 1998-2006 Ullrich von Bassewitz                                       */
10 /*               Römerstrasse 52                                             */
11 /*               D-70794 Filderstadt                                         */
12 /* EMail:        uz@cc65.org                                                 */
13 /*                                                                           */
14 /*                                                                           */
15 /* This software is provided 'as-is', without any expressed or implied       */
16 /* warranty.  In no event will the authors be held liable for any damages    */
17 /* arising from the use of this software.                                    */
18 /*                                                                           */
19 /* Permission is granted to anyone to use this software for any purpose,     */
20 /* including commercial applications, and to alter it and redistribute it    */
21 /* freely, subject to the following restrictions:                            */
22 /*                                                                           */
23 /* 1. The origin of this software must not be misrepresented; you must not   */
24 /*    claim that you wrote the original software. If you use this software   */
25 /*    in a product, an acknowledgment in the product documentation would be  */
26 /*    appreciated but is not required.                                       */
27 /* 2. Altered source versions must be plainly marked as such, and must not   */
28 /*    be misrepresented as being the original software.                      */
29 /* 3. This notice may not be removed or altered from any source              */
30 /*    distribution.                                                          */
31 /*                                                                           */
32 /*****************************************************************************/
33
34
35
36 #ifndef DECLARE_H
37 #define DECLARE_H
38
39
40
41 /* cc65 */
42 #include "scanner.h"
43 #include "symtab.h"
44
45
46
47 /*****************************************************************************/
48 /*                                   Data                                    */
49 /*****************************************************************************/
50
51
52
53 /* Masks for the Flags field in DeclSpec */
54 #define DS_DEF_STORAGE          0x0001U /* Default storage class used   */
55 #define DS_DEF_TYPE             0x0002U /* Default type used            */
56 #define DS_EXTRA_TYPE           0x0004U /* Extra type declared          */
57
58 /* Result of ParseDeclSpec */
59 typedef struct DeclSpec DeclSpec;
60 struct DeclSpec {
61     unsigned    StorageClass;           /* One of the SC_xxx flags      */
62     Type        Type[MAXTYPELEN];       /* Type of the declaration spec */
63     unsigned    Flags;                  /* Bitmapped flags              */
64 };
65
66 /* Result of ParseDecl */
67 typedef struct Declaration Declaration;
68 struct Declaration {
69     ident       Ident;                  /* The identifier if any, else empty */
70     Type        Type[MAXTYPELEN];       /* The type */
71
72     /* Working variables */
73     unsigned    Index;                  /* Used to build Type */
74 };
75
76 /* Modes for ParseDecl */
77 #define DM_NEED_IDENT   0U              /* We must have an identifier */
78 #define DM_NO_IDENT     1U              /* We won't read an identifier */
79 #define DM_ACCEPT_IDENT 2U              /* We will accept an id if there is one */
80
81
82
83 /*****************************************************************************/
84 /*                                   Code                                    */
85 /*****************************************************************************/
86
87
88
89 Type* ParseType (Type* Type);
90 /* Parse a complete type specification */
91
92 void ParseDecl (const DeclSpec* Spec, Declaration* D, unsigned Mode);
93 /* Parse a variable, type or function declaration */
94
95 void ParseDeclSpec (DeclSpec* D, unsigned DefStorage, long DefType);
96 /* Parse a declaration specification */
97
98 void CheckEmptyDecl (const DeclSpec* D);
99 /* Called after an empty type declaration (that is, a type declaration without
100  * a variable). Checks if the declaration does really make sense and issues a
101  * warning if not.
102  */
103
104 unsigned ParseInit (Type* T);
105 /* Parse initialization of variables. Return the number of initialized data
106  * bytes.
107  */                                                        
108
109
110
111 /* End of declare.h */
112
113 #endif
114
115
116