1 /*****************************************************************************/
5 /* Type string handling for the cc65 C compiler */
9 /* (C) 1998 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@musoftware.de */
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. */
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: */
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 */
32 /*****************************************************************************/
48 /*****************************************************************************/
50 /*****************************************************************************/
62 T_TYPE_SHORT = 0x0002,
65 T_TYPE_LONGLONG = 0x0005,
67 T_TYPE_FLOAT = 0x0007,
68 T_TYPE_DOUBLE = 0x0008,
70 T_TYPE_STRUCT = 0x000A,
71 T_TYPE_UNION = 0x000B,
72 T_TYPE_ARRAY = 0x000C,
78 T_CLASS_NONE = 0x0000,
80 T_CLASS_FLOAT = 0x0040,
82 T_CLASS_STRUCT = 0x0080,
83 T_CLASS_FUNC = 0x00A0,
84 T_MASK_CLASS = 0x00E0,
88 T_SIGN_UNSIGNED = 0x0100,
89 T_SIGN_SIGNED = 0x0200,
92 // Type size modifiers
94 T_SIZE_SHORT = 0x0400,
96 T_SIZE_LONGLONG = 0x0C00,
100 T_QUAL_NONE = 0x0000,
101 T_QUAL_CONST = 0x1000,
102 T_QUAL_VOLATILE = 0x2000,
103 T_MASK_QUAL = 0x3000,
106 T_CHAR = T_TYPE_CHAR | T_CLASS_INT | T_SIGN_UNSIGNED | T_SIZE_NONE,
107 T_SCHAR = T_TYPE_CHAR | T_CLASS_INT | T_SIGN_SIGNED | T_SIZE_NONE,
108 T_UCHAR = T_TYPE_CHAR | T_CLASS_INT | T_SIGN_UNSIGNED | T_SIZE_NONE,
109 T_SHORT = T_TYPE_SHORT | T_CLASS_INT | T_SIGN_SIGNED | T_SIZE_SHORT,
110 T_USHORT = T_TYPE_SHORT | T_CLASS_INT | T_SIGN_UNSIGNED | T_SIZE_SHORT,
111 T_INT = T_TYPE_INT | T_CLASS_INT | T_SIGN_SIGNED | T_SIZE_NONE,
112 T_UINT = T_TYPE_INT | T_CLASS_INT | T_SIGN_UNSIGNED | T_SIZE_NONE,
113 T_LONG = T_TYPE_LONG | T_CLASS_INT | T_SIGN_SIGNED | T_SIZE_LONG,
114 T_ULONG = T_TYPE_LONG | T_CLASS_INT | T_SIGN_UNSIGNED | T_SIZE_LONG,
115 T_LONGLONG = T_TYPE_LONGLONG | T_CLASS_INT | T_SIGN_SIGNED | T_SIZE_LONGLONG,
116 T_ULONGLONG = T_TYPE_LONGLONG | T_CLASS_INT | T_SIGN_UNSIGNED | T_SIZE_LONGLONG,
117 T_ENUM = T_TYPE_ENUM | T_CLASS_INT | T_SIGN_SIGNED | T_SIZE_NONE,
118 T_FLOAT = T_TYPE_FLOAT | T_CLASS_FLOAT | T_SIGN_NONE | T_SIZE_NONE,
119 T_DOUBLE = T_TYPE_DOUBLE | T_CLASS_FLOAT | T_SIGN_NONE | T_SIZE_NONE,
120 T_VOID = T_TYPE_VOID | T_CLASS_NONE | T_SIGN_NONE | T_SIZE_NONE,
121 T_STRUCT = T_TYPE_STRUCT | T_CLASS_STRUCT | T_SIGN_NONE | T_SIZE_NONE,
122 T_UNION = T_TYPE_UNION | T_CLASS_STRUCT | T_SIGN_NONE | T_SIZE_NONE,
123 T_ARRAY = T_TYPE_ARRAY | T_CLASS_PTR | T_SIGN_NONE | T_SIZE_NONE,
124 T_PTR = T_TYPE_PTR | T_CLASS_PTR | T_SIGN_NONE | T_SIZE_NONE,
125 T_FUNC = T_TYPE_FUNC | T_CLASS_FUNC | T_SIGN_NONE | T_SIZE_NONE,
131 /* Forward for a symbol entry */
135 typedef unsigned short type;
137 /* Maximum length of a type string */
138 #define MAXTYPELEN 30
140 /* type elements needed for Encode/Decode */
141 #define DECODE_SIZE 5
143 /* Predefined type strings */
144 extern type type_uchar [];
145 extern type type_int [];
146 extern type type_uint [];
147 extern type type_long [];
148 extern type type_ulong [];
149 extern type type_void [];
150 extern type type_size_t [];
154 /*****************************************************************************/
156 /*****************************************************************************/
160 unsigned TypeLen (const type* Type);
161 /* Return the length of the type string */
163 type* TypeCpy (type* Dest, const type* Src);
164 /* Copy a type string */
166 type* TypeCat (type* Dest, const type* Src);
169 type* TypeDup (const type* Type);
170 /* Create a copy of the given type on the heap */
172 type* TypeAlloc (unsigned Len);
173 /* Allocate memory for a type string of length Len. Len *must* include the
177 void TypeFree (type* Type);
178 /* Free a type string */
180 type GetDefaultChar (void);
181 /* Return the default char type (signed/unsigned) depending on the settings */
183 type* GetCharArrayType (unsigned Len);
184 /* Return the type for a char array of the given length */
186 type* GetImplicitFuncType (void);
187 /* Return a type string for an inplicitly declared function */
189 type* PointerTo (const type* T);
190 /* Return a type string that is "pointer to T". The type string is allocated
191 * on the heap and may be freed after use.
194 void PrintType (FILE* F, const type* Type);
195 /* Output translation of type array. */
197 void PrintRawType (FILE* F, const type* Type);
198 /* Print a type string in raw format (for debugging) */
200 void Encode (type* Type, unsigned long Val);
201 /* Encode an unsigned long into a type array */
203 void EncodePtr (type* Type, void* P);
204 /* Encode a pointer into a type array */
206 unsigned long Decode (const type* Type);
207 /* Decode an unsigned long from a type array */
209 void* DecodePtr (const type* Type);
210 /* Decode a pointer from a type array */
212 int HasEncode (const type* Type);
213 /* Return true if the given type has encoded data */
215 void CopyEncode (const type* Source, type* Target);
216 /* Copy encoded data from Source to Target */
218 type UnqualifiedType (type T);
219 /* Return the unqalified type */
221 unsigned SizeOf (const type* Type);
222 /* Compute size of object represented by type array. */
224 unsigned PSizeOf (const type* Type);
225 /* Compute size of pointer object. */
227 unsigned TypeOf (const type* Type);
228 /* Get the code generator base type of the object */
230 type* Indirect (type* Type);
231 /* Do one indirection for the given type, that is, return the type where the
232 * given type points to.
235 int IsTypeChar (const type* T) attribute ((const));
236 /* Return true if this is a character type */
238 int IsTypeInt (const type* T) attribute ((const));
239 /* Return true if this is an int type (signed or unsigned) */
241 int IsTypeLong (const type* T) attribute ((const));
242 /* Return true if this is a long type (signed or unsigned) */
244 int IsTypeFloat (const type* T) attribute ((const));
245 /* Return true if this is a float type */
247 int IsTypeDouble (const type* T) attribute ((const));
248 /* Return true if this is a double type */
250 int IsTypePtr (const type* Type) attribute ((const));
251 /* Return true if this is a pointer type */
253 int IsTypeArray (const type* Type) attribute ((const));
254 /* Return true if this is an array type */
256 int IsTypeVoid (const type* Type) attribute ((const));
257 /* Return true if this is a void type */
259 int IsTypeFunc (const type* Type) attribute ((const));
260 /* Return true if this is a function class */
262 int IsClassInt (const type* Type) attribute ((const));
263 /* Return true if this is an integer type */
265 int IsClassFloat (const type* Type) attribute ((const));
266 /* Return true if this is a float type */
268 int IsClassPtr (const type* Type) attribute ((const));
269 /* Return true if this is a pointer type */
271 int IsClassStruct (const type* Type) attribute ((const));
272 /* Return true if this is a struct type */
274 int IsSignUnsigned (const type* Type) attribute ((const));
275 /* Return true if this is an unsigned type */
277 int IsQualConst (const type* T) attribute ((const));
278 /* Return true if the given type has a const memory image */
280 int IsQualVolatile (const type* T) attribute ((const));
281 /* Return true if the given type has a volatile type qualifier */
283 int IsFastCallFunc (const type* T) attribute ((const));
284 /* Return true if this is a function type with __fastcall__ calling conventions */
286 int IsTypeFuncPtr (const type* T) attribute ((const));
287 /* Return true if this is a function pointer */
289 type GetType (const type* T) attribute ((const));
290 /* Get the raw type */
292 type GetClass (const type* T) attribute ((const));
293 /* Get the class of a type string */
295 type GetSignedness (const type* T) attribute ((const));
296 /* Get the sign of a type */
298 type GetSizeModifier (const type* T) attribute ((const));
299 /* Get the size modifier of a type */
301 type GetQualifier (const type* T) attribute ((const));
302 /* Get the qualifier from the given type string */
304 struct FuncDesc* GetFuncDesc (const type* T) attribute ((const));
305 /* Get the FuncDesc pointer from a function or pointer-to-function type */
309 /* End of datatype.h */