1 /* 2 * Heap header definition and assorted macros, including ref counting. 3 * Access all fields through the accessor macros. 4 */ 5 6 #ifndef DUK_HEAPHDR_H_INCLUDED 7 #define DUK_HEAPHDR_H_INCLUDED 8 9 /* 10 * Common heap header 11 * 12 * All heap objects share the same flags and refcount fields. Objects other 13 * than strings also need to have a single or double linked list pointers 14 * for insertion into the "heap allocated" list. Strings are held in the 15 * heap-wide string table so they don't need link pointers. 16 * 17 * Technically, 'h_refcount' must be wide enough to guarantee that it cannot 18 * wrap (otherwise objects might be freed incorrectly after wrapping). This 19 * means essentially that the refcount field must be as wide as data pointers. 20 * On 64-bit platforms this means that the refcount needs to be 64 bits even 21 * if an 'int' is 32 bits. This is a bit unfortunate, and compromising on 22 * this might be reasonable in the future. 23 * 24 * Heap header size on 32-bit platforms: 8 bytes without reference counting, 25 * 16 bytes with reference counting. 26 */ 27 28 struct duk_heaphdr { 29 duk_uint32_t h_flags; 30 31 #if defined(DUK_USE_REFERENCE_COUNTING) 32 #if defined(DUK_USE_REFCOUNT16) 33 duk_uint16_t h_refcount16; 34 #else 35 duk_size_t h_refcount; 36 #endif 37 #endif 38 39 #if defined(DUK_USE_HEAPPTR16) 40 duk_uint16_t h_next16; 41 #else 42 duk_heaphdr *h_next; 43 #endif 44 45 #if defined(DUK_USE_DOUBLE_LINKED_HEAP) 46 /* refcounting requires direct heap frees, which in turn requires a dual linked heap */ 47 #if defined(DUK_USE_HEAPPTR16) 48 duk_uint16_t h_prev16; 49 #else 50 duk_heaphdr *h_prev; 51 #endif 52 #endif 53 54 /* When DUK_USE_HEAPPTR16 (and DUK_USE_REFCOUNT16) is in use, the 55 * struct won't align nicely to 4 bytes. This 16-bit extra field 56 * is added to make the alignment clean; the field can be used by 57 * heap objects when 16-bit packing is used. This field is now 58 * conditional to DUK_USE_HEAPPTR16 only, but it is intended to be 59 * used with DUK_USE_REFCOUNT16 and DUK_USE_DOUBLE_LINKED_HEAP; 60 * this only matter to low memory environments anyway. 61 */ 62 #if defined(DUK_USE_HEAPPTR16) 63 duk_uint16_t h_extra16; 64 #endif 65 }; 66 67 struct duk_heaphdr_string { 68 /* 16 bits would be enough for shared heaphdr flags and duk_hstring 69 * flags. The initial parts of duk_heaphdr_string and duk_heaphdr 70 * must match so changing the flags field size here would be quite 71 * awkward. However, to minimize struct size, we can pack at least 72 * 16 bits of duk_hstring data into the flags field. 73 */ 74 duk_uint32_t h_flags; 75 76 #if defined(DUK_USE_REFERENCE_COUNTING) 77 #if defined(DUK_USE_REFCOUNT16) 78 duk_uint16_t h_refcount16; 79 duk_uint16_t h_strextra16; /* round out to 8 bytes */ 80 #else 81 duk_size_t h_refcount; 82 #endif 83 #endif 84 }; 85 86 #define DUK_HEAPHDR_FLAGS_TYPE_MASK 0x00000003UL 87 #define DUK_HEAPHDR_FLAGS_FLAG_MASK (~DUK_HEAPHDR_FLAGS_TYPE_MASK) 88 89 /* 2 bits for heap type */ 90 #define DUK_HEAPHDR_FLAGS_HEAP_START 2 /* 5 heap flags */ 91 #define DUK_HEAPHDR_FLAGS_USER_START 7 /* 25 user flags */ 92 93 #define DUK_HEAPHDR_HEAP_FLAG_NUMBER(n) (DUK_HEAPHDR_FLAGS_HEAP_START + (n)) 94 #define DUK_HEAPHDR_USER_FLAG_NUMBER(n) (DUK_HEAPHDR_FLAGS_USER_START + (n)) 95 #define DUK_HEAPHDR_HEAP_FLAG(n) (1UL << (DUK_HEAPHDR_FLAGS_HEAP_START + (n))) 96 #define DUK_HEAPHDR_USER_FLAG(n) (1UL << (DUK_HEAPHDR_FLAGS_USER_START + (n))) 97 98 #define DUK_HEAPHDR_FLAG_REACHABLE DUK_HEAPHDR_HEAP_FLAG(0) /* mark-and-sweep: reachable */ 99 #define DUK_HEAPHDR_FLAG_TEMPROOT DUK_HEAPHDR_HEAP_FLAG(1) /* mark-and-sweep: children not processed */ 100 #define DUK_HEAPHDR_FLAG_FINALIZABLE DUK_HEAPHDR_HEAP_FLAG(2) /* mark-and-sweep: finalizable (on current pass) */ 101 #define DUK_HEAPHDR_FLAG_FINALIZED DUK_HEAPHDR_HEAP_FLAG(3) /* mark-and-sweep: finalized (on previous pass) */ 102 #define DUK_HEAPHDR_FLAG_READONLY DUK_HEAPHDR_HEAP_FLAG(4) /* read-only object, in code section */ 103 104 #define DUK_HTYPE_MIN 1 105 #define DUK_HTYPE_STRING 1 106 #define DUK_HTYPE_OBJECT 2 107 #define DUK_HTYPE_BUFFER 3 108 #define DUK_HTYPE_MAX 3 109 110 #if defined(DUK_USE_HEAPPTR16) 111 #define DUK_HEAPHDR_GET_NEXT(heap,h) \ 112 ((duk_heaphdr *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->h_next16)) 113 #define DUK_HEAPHDR_SET_NEXT(heap,h,val) do { \ 114 (h)->h_next16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) val); \ 115 } while (0) 116 #else 117 #define DUK_HEAPHDR_GET_NEXT(heap,h) ((h)->h_next) 118 #define DUK_HEAPHDR_SET_NEXT(heap,h,val) do { \ 119 (h)->h_next = (val); \ 120 } while (0) 121 #endif 122 123 #if defined(DUK_USE_DOUBLE_LINKED_HEAP) 124 #if defined(DUK_USE_HEAPPTR16) 125 #define DUK_HEAPHDR_GET_PREV(heap,h) \ 126 ((duk_heaphdr *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->h_prev16)) 127 #define DUK_HEAPHDR_SET_PREV(heap,h,val) do { \ 128 (h)->h_prev16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (val)); \ 129 } while (0) 130 #else 131 #define DUK_HEAPHDR_GET_PREV(heap,h) ((h)->h_prev) 132 #define DUK_HEAPHDR_SET_PREV(heap,h,val) do { \ 133 (h)->h_prev = (val); \ 134 } while (0) 135 #endif 136 #endif 137 138 #if defined(DUK_USE_REFERENCE_COUNTING) 139 #if defined(DUK_USE_REFCOUNT16) 140 #define DUK_HEAPHDR_GET_REFCOUNT(h) ((h)->h_refcount16) 141 #define DUK_HEAPHDR_SET_REFCOUNT(h,val) do { \ 142 (h)->h_refcount16 = (val); \ 143 } while (0) 144 #define DUK_HEAPHDR_PREINC_REFCOUNT(h) (++(h)->h_refcount16) /* result: updated refcount */ 145 #define DUK_HEAPHDR_PREDEC_REFCOUNT(h) (--(h)->h_refcount16) /* result: updated refcount */ 146 #else 147 #define DUK_HEAPHDR_GET_REFCOUNT(h) ((h)->h_refcount) 148 #define DUK_HEAPHDR_SET_REFCOUNT(h,val) do { \ 149 (h)->h_refcount = (val); \ 150 } while (0) 151 #define DUK_HEAPHDR_PREINC_REFCOUNT(h) (++(h)->h_refcount) /* result: updated refcount */ 152 #define DUK_HEAPHDR_PREDEC_REFCOUNT(h) (--(h)->h_refcount) /* result: updated refcount */ 153 #endif 154 #else 155 /* refcount macros not defined without refcounting, caller must #ifdef now */ 156 #endif /* DUK_USE_REFERENCE_COUNTING */ 157 158 /* 159 * Note: type is treated as a field separate from flags, so some masking is 160 * involved in the macros below. 161 */ 162 163 #define DUK_HEAPHDR_GET_FLAGS_RAW(h) ((h)->h_flags) 164 165 #define DUK_HEAPHDR_GET_FLAGS(h) ((h)->h_flags & DUK_HEAPHDR_FLAGS_FLAG_MASK) 166 #define DUK_HEAPHDR_SET_FLAGS(h,val) do { \ 167 (h)->h_flags = ((h)->h_flags & ~(DUK_HEAPHDR_FLAGS_FLAG_MASK)) | (val); \ 168 } while (0) 169 170 #define DUK_HEAPHDR_GET_TYPE(h) ((h)->h_flags & DUK_HEAPHDR_FLAGS_TYPE_MASK) 171 #define DUK_HEAPHDR_SET_TYPE(h,val) do { \ 172 (h)->h_flags = ((h)->h_flags & ~(DUK_HEAPHDR_FLAGS_TYPE_MASK)) | (val); \ 173 } while (0) 174 175 #define DUK_HEAPHDR_HTYPE_VALID(h) ( \ 176 DUK_HEAPHDR_GET_TYPE((h)) >= DUK_HTYPE_MIN && \ 177 DUK_HEAPHDR_GET_TYPE((h)) <= DUK_HTYPE_MAX \ 178 ) 179 180 #define DUK_HEAPHDR_SET_TYPE_AND_FLAGS(h,tval,fval) do { \ 181 (h)->h_flags = ((tval) & DUK_HEAPHDR_FLAGS_TYPE_MASK) | \ 182 ((fval) & DUK_HEAPHDR_FLAGS_FLAG_MASK); \ 183 } while (0) 184 185 #define DUK_HEAPHDR_SET_FLAG_BITS(h,bits) do { \ 186 DUK_ASSERT(((bits) & ~(DUK_HEAPHDR_FLAGS_FLAG_MASK)) == 0); \ 187 (h)->h_flags |= (bits); \ 188 } while (0) 189 190 #define DUK_HEAPHDR_CLEAR_FLAG_BITS(h,bits) do { \ 191 DUK_ASSERT(((bits) & ~(DUK_HEAPHDR_FLAGS_FLAG_MASK)) == 0); \ 192 (h)->h_flags &= ~((bits)); \ 193 } while (0) 194 195 #define DUK_HEAPHDR_CHECK_FLAG_BITS(h,bits) (((h)->h_flags & (bits)) != 0) 196 197 #define DUK_HEAPHDR_SET_REACHABLE(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_REACHABLE) 198 #define DUK_HEAPHDR_CLEAR_REACHABLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_REACHABLE) 199 #define DUK_HEAPHDR_HAS_REACHABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_REACHABLE) 200 201 #define DUK_HEAPHDR_SET_TEMPROOT(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_TEMPROOT) 202 #define DUK_HEAPHDR_CLEAR_TEMPROOT(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_TEMPROOT) 203 #define DUK_HEAPHDR_HAS_TEMPROOT(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_TEMPROOT) 204 205 #define DUK_HEAPHDR_SET_FINALIZABLE(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZABLE) 206 #define DUK_HEAPHDR_CLEAR_FINALIZABLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZABLE) 207 #define DUK_HEAPHDR_HAS_FINALIZABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZABLE) 208 209 #define DUK_HEAPHDR_SET_FINALIZED(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZED) 210 #define DUK_HEAPHDR_CLEAR_FINALIZED(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZED) 211 #define DUK_HEAPHDR_HAS_FINALIZED(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_FINALIZED) 212 213 #define DUK_HEAPHDR_SET_READONLY(h) DUK_HEAPHDR_SET_FLAG_BITS((h),DUK_HEAPHDR_FLAG_READONLY) 214 #define DUK_HEAPHDR_CLEAR_READONLY(h) DUK_HEAPHDR_CLEAR_FLAG_BITS((h),DUK_HEAPHDR_FLAG_READONLY) 215 #define DUK_HEAPHDR_HAS_READONLY(h) DUK_HEAPHDR_CHECK_FLAG_BITS((h),DUK_HEAPHDR_FLAG_READONLY) 216 217 /* get or set a range of flags; m=first bit number, n=number of bits */ 218 #define DUK_HEAPHDR_GET_FLAG_RANGE(h,m,n) (((h)->h_flags >> (m)) & ((1UL << (n)) - 1UL)) 219 220 #define DUK_HEAPHDR_SET_FLAG_RANGE(h,m,n,v) do { \ 221 (h)->h_flags = \ 222 ((h)->h_flags & (~(((1 << (n)) - 1) << (m)))) \ 223 | ((v) << (m)); \ 224 } while (0) 225 226 /* init pointer fields to null */ 227 #if defined(DUK_USE_DOUBLE_LINKED_HEAP) 228 #define DUK_HEAPHDR_INIT_NULLS(h) do { \ 229 DUK_HEAPHDR_SET_NEXT((h), (void *) NULL); \ 230 DUK_HEAPHDR_SET_PREV((h), (void *) NULL); \ 231 } while (0) 232 #else 233 #define DUK_HEAPHDR_INIT_NULLS(h) do { \ 234 DUK_HEAPHDR_SET_NEXT((h), (void *) NULL); \ 235 } while (0) 236 #endif 237 238 #define DUK_HEAPHDR_STRING_INIT_NULLS(h) /* currently nop */ 239 240 /* 241 * Assert helpers 242 */ 243 244 /* Check that prev/next links are consistent: if e.g. h->prev is != NULL, 245 * h->prev->next should point back to h. 246 */ 247 #if defined(DUK_USE_DOUBLE_LINKED_HEAP) && defined(DUK_USE_ASSERTIONS) 248 #define DUK_ASSERT_HEAPHDR_LINKS(heap,h) do { \ 249 if ((h) != NULL) { \ 250 duk_heaphdr *h__prev, *h__next; \ 251 h__prev = DUK_HEAPHDR_GET_PREV((heap), (h)); \ 252 h__next = DUK_HEAPHDR_GET_NEXT((heap), (h)); \ 253 DUK_ASSERT(h__prev == NULL || (DUK_HEAPHDR_GET_NEXT((heap), h__prev) == (h))); \ 254 DUK_ASSERT(h__next == NULL || (DUK_HEAPHDR_GET_PREV((heap), h__next) == (h))); \ 255 } \ 256 } while (0) 257 #else 258 #define DUK_ASSERT_HEAPHDR_LINKS(heap,h) do {} while (0) 259 #endif 260 261 /* 262 * Reference counting helper macros. The macros take a thread argument 263 * and must thus always be executed in a specific thread context. The 264 * thread argument is needed for features like finalization. Currently 265 * it is not required for INCREF, but it is included just in case. 266 * 267 * Note that 'raw' macros such as DUK_HEAPHDR_GET_REFCOUNT() are not 268 * defined without DUK_USE_REFERENCE_COUNTING, so caller must #ifdef 269 * around them. 270 */ 271 272 #if defined(DUK_USE_REFERENCE_COUNTING) 273 274 #if defined(DUK_USE_ROM_OBJECTS) 275 /* With ROM objects "needs refcount update" is true when the value is 276 * heap allocated and is not a ROM object. 277 */ 278 /* XXX: double evaluation for 'tv' argument. */ 279 #define DUK_TVAL_NEEDS_REFCOUNT_UPDATE(tv) \ 280 (DUK_TVAL_IS_HEAP_ALLOCATED((tv)) && !DUK_HEAPHDR_HAS_READONLY(DUK_TVAL_GET_HEAPHDR((tv)))) 281 #define DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(h) (!DUK_HEAPHDR_HAS_READONLY((h))) 282 #else /* DUK_USE_ROM_OBJECTS */ 283 /* Without ROM objects "needs refcount update" == is heap allocated. */ 284 #define DUK_TVAL_NEEDS_REFCOUNT_UPDATE(tv) DUK_TVAL_IS_HEAP_ALLOCATED((tv)) 285 #define DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(h) 1 286 #endif /* DUK_USE_ROM_OBJECTS */ 287 288 /* Fast variants, inline refcount operations except for refzero handling. 289 * Can be used explicitly when speed is always more important than size. 290 * For a good compiler and a single file build, these are basically the 291 * same as a forced inline. 292 */ 293 #define DUK_TVAL_INCREF_FAST(thr,tv) do { \ 294 duk_tval *duk__tv = (tv); \ 295 DUK_ASSERT(duk__tv != NULL); \ 296 if (DUK_TVAL_NEEDS_REFCOUNT_UPDATE(duk__tv)) { \ 297 duk_heaphdr *duk__h = DUK_TVAL_GET_HEAPHDR(duk__tv); \ 298 DUK_ASSERT(duk__h != NULL); \ 299 DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ 300 DUK_HEAPHDR_PREINC_REFCOUNT(duk__h); \ 301 } \ 302 } while (0) 303 #define DUK_TVAL_DECREF_FAST(thr,tv) do { \ 304 duk_tval *duk__tv = (tv); \ 305 DUK_ASSERT(duk__tv != NULL); \ 306 if (DUK_TVAL_NEEDS_REFCOUNT_UPDATE(duk__tv)) { \ 307 duk_heaphdr *duk__h = DUK_TVAL_GET_HEAPHDR(duk__tv); \ 308 DUK_ASSERT(duk__h != NULL); \ 309 DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ 310 DUK_ASSERT(DUK_HEAPHDR_GET_REFCOUNT(duk__h) > 0); \ 311 if (DUK_HEAPHDR_PREDEC_REFCOUNT(duk__h) == 0) { \ 312 duk_heaphdr_refzero((thr), duk__h); \ 313 } \ 314 } \ 315 } while (0) 316 #define DUK_HEAPHDR_INCREF_FAST(thr,h) do { \ 317 duk_heaphdr *duk__h = (duk_heaphdr *) (h); \ 318 DUK_ASSERT(duk__h != NULL); \ 319 DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ 320 if (DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(duk__h)) { \ 321 DUK_HEAPHDR_PREINC_REFCOUNT(duk__h); \ 322 } \ 323 } while (0) 324 #define DUK_HEAPHDR_DECREF_FAST(thr,h) do { \ 325 duk_heaphdr *duk__h = (duk_heaphdr *) (h); \ 326 DUK_ASSERT(duk__h != NULL); \ 327 DUK_ASSERT(DUK_HEAPHDR_HTYPE_VALID(duk__h)); \ 328 DUK_ASSERT(DUK_HEAPHDR_GET_REFCOUNT(duk__h) > 0); \ 329 if (DUK_HEAPHDR_NEEDS_REFCOUNT_UPDATE(duk__h)) { \ 330 if (DUK_HEAPHDR_PREDEC_REFCOUNT(duk__h) == 0) { \ 331 duk_heaphdr_refzero((thr), duk__h); \ 332 } \ 333 } \ 334 } while (0) 335 336 /* Slow variants, call to a helper to reduce code size. 337 * Can be used explicitly when size is always more important than speed. 338 */ 339 #define DUK_TVAL_INCREF_SLOW(thr,tv) do { \ 340 duk_tval_incref((tv)); \ 341 } while (0) 342 #define DUK_TVAL_DECREF_SLOW(thr,tv) do { \ 343 duk_tval_decref((thr), (tv)); \ 344 } while (0) 345 #define DUK_HEAPHDR_INCREF_SLOW(thr,h) do { \ 346 duk_heaphdr_incref((duk_heaphdr *) (h)); \ 347 } while (0) 348 #define DUK_HEAPHDR_DECREF_SLOW(thr,h) do { \ 349 duk_heaphdr_decref((thr), (duk_heaphdr *) (h)); \ 350 } while (0) 351 352 /* Default variants. Selection depends on speed/size preference. 353 * Concretely: with gcc 4.8.1 -Os x64 the difference in final binary 354 * is about +1kB for _FAST variants. 355 */ 356 #if defined(DUK_USE_FAST_REFCOUNT_DEFAULT) 357 #define DUK_TVAL_INCREF(thr,tv) DUK_TVAL_INCREF_FAST((thr),(tv)) 358 #define DUK_TVAL_DECREF(thr,tv) DUK_TVAL_DECREF_FAST((thr),(tv)) 359 #define DUK_HEAPHDR_INCREF(thr,h) DUK_HEAPHDR_INCREF_FAST((thr),(h)) 360 #define DUK_HEAPHDR_DECREF(thr,h) DUK_HEAPHDR_DECREF_FAST((thr),(h)) 361 #else 362 #define DUK_TVAL_INCREF(thr,tv) DUK_TVAL_INCREF_SLOW((thr),(tv)) 363 #define DUK_TVAL_DECREF(thr,tv) DUK_TVAL_DECREF_SLOW((thr),(tv)) 364 #define DUK_HEAPHDR_INCREF(thr,h) DUK_HEAPHDR_INCREF_SLOW((thr),(h)) 365 #define DUK_HEAPHDR_DECREF(thr,h) DUK_HEAPHDR_DECREF_SLOW((thr),(h)) 366 #endif 367 368 /* Casting convenience. */ 369 #define DUK_HSTRING_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) (h)) 370 #define DUK_HSTRING_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) (h)) 371 #define DUK_HOBJECT_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) (h)) 372 #define DUK_HOBJECT_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) (h)) 373 #define DUK_HBUFFER_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) (h)) 374 #define DUK_HBUFFER_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) (h)) 375 #define DUK_HCOMPILEDFUNCTION_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) 376 #define DUK_HCOMPILEDFUNCTION_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) 377 #define DUK_HNATIVEFUNCTION_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) 378 #define DUK_HNATIVEFUNCTION_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) 379 #define DUK_HBUFFEROBJECT_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) 380 #define DUK_HBUFFEROBJECT_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) 381 #define DUK_HTHREAD_INCREF(thr,h) DUK_HEAPHDR_INCREF((thr),(duk_heaphdr *) &(h)->obj) 382 #define DUK_HTHREAD_DECREF(thr,h) DUK_HEAPHDR_DECREF((thr),(duk_heaphdr *) &(h)->obj) 383 384 /* Convenience for some situations; the above macros don't allow NULLs 385 * for performance reasons. 386 */ 387 #define DUK_HOBJECT_INCREF_ALLOWNULL(thr,h) do { \ 388 if ((h) != NULL) { \ 389 DUK_HEAPHDR_INCREF((thr), (duk_heaphdr *) (h)); \ 390 } \ 391 } while (0) 392 #define DUK_HOBJECT_DECREF_ALLOWNULL(thr,h) do { \ 393 if ((h) != NULL) { \ 394 DUK_HEAPHDR_DECREF((thr), (duk_heaphdr *) (h)); \ 395 } \ 396 } while (0) 397 398 /* 399 * Macros to set a duk_tval and update refcount of the target (decref the 400 * old value and incref the new value if necessary). This is both performance 401 * and footprint critical; any changes made should be measured for size/speed. 402 */ 403 404 #define DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0(thr,tvptr_dst) do { \ 405 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 406 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 407 DUK_TVAL_SET_UNDEFINED(tv__dst); \ 408 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 409 } while (0) 410 411 #define DUK_TVAL_SET_UNUSED_UPDREF_ALT0(thr,tvptr_dst) do { \ 412 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 413 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 414 DUK_TVAL_SET_UNUSED(tv__dst); \ 415 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 416 } while (0) 417 418 #define DUK_TVAL_SET_NULL_UPDREF_ALT0(thr,tvptr_dst) do { \ 419 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 420 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 421 DUK_TVAL_SET_NULL(tv__dst); \ 422 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 423 } while (0) 424 425 #define DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 426 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 427 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 428 DUK_TVAL_SET_BOOLEAN(tv__dst, (newval)); \ 429 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 430 } while (0) 431 432 #define DUK_TVAL_SET_NUMBER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 433 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 434 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 435 DUK_TVAL_SET_NUMBER(tv__dst, (newval)); \ 436 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 437 } while (0) 438 #define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 439 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 440 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 441 DUK_TVAL_SET_NUMBER_CHKFAST(tv__dst, (newval)); \ 442 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 443 } while (0) 444 #define DUK_TVAL_SET_DOUBLE_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 445 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 446 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 447 DUK_TVAL_SET_DOUBLE(tv__dst, (newval)); \ 448 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 449 } while (0) 450 #define DUK_TVAL_SET_NAN_UPDREF_ALT0(thr,tvptr_dst) do { \ 451 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 452 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 453 DUK_TVAL_SET_NAN(tv__dst); \ 454 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 455 } while (0) 456 #if defined(DUK_USE_FASTINT) 457 #define DUK_TVAL_SET_FASTINT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 458 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 459 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 460 DUK_TVAL_SET_FASTINT(tv__dst, (newval)); \ 461 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 462 } while (0) 463 #define DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 464 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 465 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 466 DUK_TVAL_SET_FASTINT_I32(tv__dst, (newval)); \ 467 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 468 } while (0) 469 #define DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 470 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 471 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 472 DUK_TVAL_SET_FASTINT_U32(tv__dst, (newval)); \ 473 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 474 } while (0) 475 #else 476 #define DUK_TVAL_SET_DOUBLE_CAST_UPDREF(thr,tvptr_dst,newval) \ 477 DUK_TVAL_SET_DOUBLE_UPDREF((thr), (tvptr_dst), (duk_double_t) (newval)) 478 #endif /* DUK_USE_FASTINT */ 479 480 #define DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0(thr,tvptr_dst,lf_v,lf_fp,lf_flags) do { \ 481 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 482 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 483 DUK_TVAL_SET_LIGHTFUNC(tv__dst, (lf_v), (lf_fp), (lf_flags)); \ 484 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 485 } while (0) 486 487 #define DUK_TVAL_SET_STRING_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 488 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 489 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 490 DUK_TVAL_SET_STRING(tv__dst, (newval)); \ 491 DUK_HSTRING_INCREF((thr), (newval)); \ 492 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 493 } while (0) 494 495 #define DUK_TVAL_SET_OBJECT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 496 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 497 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 498 DUK_TVAL_SET_OBJECT(tv__dst, (newval)); \ 499 DUK_HOBJECT_INCREF((thr), (newval)); \ 500 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 501 } while (0) 502 503 #define DUK_TVAL_SET_BUFFER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 504 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 505 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 506 DUK_TVAL_SET_BUFFER(tv__dst, (newval)); \ 507 DUK_HBUFFER_INCREF((thr), (newval)); \ 508 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 509 } while (0) 510 511 #define DUK_TVAL_SET_POINTER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 512 duk_tval *tv__dst; duk_tval tv__tmp; tv__dst = (tvptr_dst); \ 513 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 514 DUK_TVAL_SET_POINTER(tv__dst, (newval)); \ 515 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 516 } while (0) 517 518 /* DUK_TVAL_SET_TVAL_UPDREF() is used a lot in executor, property lookups, 519 * etc, so it's very important for performance. Measure when changing. 520 * 521 * NOTE: the source and destination duk_tval pointers may be the same, and 522 * the macros MUST deal with that correctly. 523 */ 524 525 /* Original idiom used, minimal code size. */ 526 #define DUK_TVAL_SET_TVAL_UPDREF_ALT0(thr,tvptr_dst,tvptr_src) do { \ 527 duk_tval *tv__dst, *tv__src; duk_tval tv__tmp; \ 528 tv__dst = (tvptr_dst); tv__src = (tvptr_src); \ 529 DUK_TVAL_SET_TVAL(&tv__tmp, tv__dst); \ 530 DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ 531 DUK_TVAL_INCREF((thr), tv__src); \ 532 DUK_TVAL_DECREF((thr), &tv__tmp); /* side effects */ \ 533 } while (0) 534 535 /* Faster alternative: avoid making a temporary copy of tvptr_dst and use 536 * fast incref/decref macros. 537 */ 538 #define DUK_TVAL_SET_TVAL_UPDREF_ALT1(thr,tvptr_dst,tvptr_src) do { \ 539 duk_tval *tv__dst, *tv__src; duk_heaphdr *h__obj; \ 540 tv__dst = (tvptr_dst); tv__src = (tvptr_src); \ 541 DUK_TVAL_INCREF_FAST((thr), tv__src); \ 542 if (DUK_TVAL_NEEDS_REFCOUNT_UPDATE(tv__dst)) { \ 543 h__obj = DUK_TVAL_GET_HEAPHDR(tv__dst); \ 544 DUK_ASSERT(h__obj != NULL); \ 545 DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ 546 DUK_HEAPHDR_DECREF_FAST((thr), h__obj); /* side effects */ \ 547 } else { \ 548 DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ 549 } \ 550 } while (0) 551 552 /* XXX: no optimized variants yet */ 553 #define DUK_TVAL_SET_UNDEFINED_UPDREF DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0 554 #define DUK_TVAL_SET_UNUSED_UPDREF DUK_TVAL_SET_UNUSED_UPDREF_ALT0 555 #define DUK_TVAL_SET_NULL_UPDREF DUK_TVAL_SET_NULL_UPDREF_ALT0 556 #define DUK_TVAL_SET_BOOLEAN_UPDREF DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0 557 #define DUK_TVAL_SET_NUMBER_UPDREF DUK_TVAL_SET_NUMBER_UPDREF_ALT0 558 #define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0 559 #define DUK_TVAL_SET_DOUBLE_UPDREF DUK_TVAL_SET_DOUBLE_UPDREF_ALT0 560 #define DUK_TVAL_SET_NAN_UPDREF DUK_TVAL_SET_NAN_UPDREF_ALT0 561 #if defined(DUK_USE_FASTINT) 562 #define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_FASTINT_UPDREF_ALT0 563 #define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0 564 #define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0 565 #else 566 #define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF /* XXX: fast int-to-double */ 567 #define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF 568 #define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF 569 #endif /* DUK_USE_FASTINT */ 570 #define DUK_TVAL_SET_LIGHTFUNC_UPDREF DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0 571 #define DUK_TVAL_SET_STRING_UPDREF DUK_TVAL_SET_STRING_UPDREF_ALT0 572 #define DUK_TVAL_SET_OBJECT_UPDREF DUK_TVAL_SET_OBJECT_UPDREF_ALT0 573 #define DUK_TVAL_SET_BUFFER_UPDREF DUK_TVAL_SET_BUFFER_UPDREF_ALT0 574 #define DUK_TVAL_SET_POINTER_UPDREF DUK_TVAL_SET_POINTER_UPDREF_ALT0 575 576 #if defined(DUK_USE_FAST_REFCOUNT_DEFAULT) 577 /* Optimized for speed. */ 578 #define DUK_TVAL_SET_TVAL_UPDREF DUK_TVAL_SET_TVAL_UPDREF_ALT1 579 #define DUK_TVAL_SET_TVAL_UPDREF_FAST DUK_TVAL_SET_TVAL_UPDREF_ALT1 580 #define DUK_TVAL_SET_TVAL_UPDREF_SLOW DUK_TVAL_SET_TVAL_UPDREF_ALT0 581 #else 582 /* Optimized for size. */ 583 #define DUK_TVAL_SET_TVAL_UPDREF DUK_TVAL_SET_TVAL_UPDREF_ALT0 584 #define DUK_TVAL_SET_TVAL_UPDREF_FAST DUK_TVAL_SET_TVAL_UPDREF_ALT0 585 #define DUK_TVAL_SET_TVAL_UPDREF_SLOW DUK_TVAL_SET_TVAL_UPDREF_ALT0 586 #endif 587 588 #else /* DUK_USE_REFERENCE_COUNTING */ 589 590 #define DUK_TVAL_INCREF_FAST(thr,v) do {} while (0) /* nop */ 591 #define DUK_TVAL_DECREF_FAST(thr,v) do {} while (0) /* nop */ 592 #define DUK_TVAL_INCREF_SLOW(thr,v) do {} while (0) /* nop */ 593 #define DUK_TVAL_DECREF_SLOW(thr,v) do {} while (0) /* nop */ 594 #define DUK_TVAL_INCREF(thr,v) do {} while (0) /* nop */ 595 #define DUK_TVAL_DECREF(thr,v) do {} while (0) /* nop */ 596 #define DUK_HEAPHDR_INCREF_FAST(thr,h) do {} while (0) /* nop */ 597 #define DUK_HEAPHDR_DECREF_FAST(thr,h) do {} while (0) /* nop */ 598 #define DUK_HEAPHDR_INCREF_SLOW(thr,h) do {} while (0) /* nop */ 599 #define DUK_HEAPHDR_DECREF_SLOW(thr,h) do {} while (0) /* nop */ 600 #define DUK_HEAPHDR_INCREF(thr,h) do {} while (0) /* nop */ 601 #define DUK_HEAPHDR_DECREF(thr,h) do {} while (0) /* nop */ 602 #define DUK_HSTRING_INCREF(thr,h) do {} while (0) /* nop */ 603 #define DUK_HSTRING_DECREF(thr,h) do {} while (0) /* nop */ 604 #define DUK_HOBJECT_INCREF(thr,h) do {} while (0) /* nop */ 605 #define DUK_HOBJECT_DECREF(thr,h) do {} while (0) /* nop */ 606 #define DUK_HBUFFER_INCREF(thr,h) do {} while (0) /* nop */ 607 #define DUK_HBUFFER_DECREF(thr,h) do {} while (0) /* nop */ 608 #define DUK_HCOMPILEDFUNCTION_INCREF(thr,h) do {} while (0) /* nop */ 609 #define DUK_HCOMPILEDFUNCTION_DECREF(thr,h) do {} while (0) /* nop */ 610 #define DUK_HNATIVEFUNCTION_INCREF(thr,h) do {} while (0) /* nop */ 611 #define DUK_HNATIVEFUNCTION_DECREF(thr,h) do {} while (0) /* nop */ 612 #define DUK_HBUFFEROBJECT_INCREF(thr,h) do {} while (0) /* nop */ 613 #define DUK_HBUFFEROBJECT_DECREF(thr,h) do {} while (0) /* nop */ 614 #define DUK_HTHREAD_INCREF(thr,h) do {} while (0) /* nop */ 615 #define DUK_HTHREAD_DECREF(thr,h) do {} while (0) /* nop */ 616 #define DUK_HOBJECT_INCREF_ALLOWNULL(thr,h) do {} while (0) /* nop */ 617 #define DUK_HOBJECT_DECREF_ALLOWNULL(thr,h) do {} while (0) /* nop */ 618 619 #define DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0(thr,tvptr_dst) do { \ 620 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 621 DUK_TVAL_SET_UNDEFINED(tv__dst); \ 622 DUK_UNREF((thr)); \ 623 } while (0) 624 625 #define DUK_TVAL_SET_UNUSED_UPDREF_ALT0(thr,tvptr_dst) do { \ 626 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 627 DUK_TVAL_SET_UNUSED(tv__dst); \ 628 DUK_UNREF((thr)); \ 629 } while (0) 630 631 #define DUK_TVAL_SET_NULL_UPDREF_ALT0(thr,tvptr_dst) do { \ 632 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 633 DUK_TVAL_SET_NULL(tv__dst); \ 634 DUK_UNREF((thr)); \ 635 } while (0) 636 637 #define DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 638 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 639 DUK_TVAL_SET_BOOLEAN(tv__dst, (newval)); \ 640 DUK_UNREF((thr)); \ 641 } while (0) 642 643 #define DUK_TVAL_SET_NUMBER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 644 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 645 DUK_TVAL_SET_NUMBER(tv__dst, (newval)); \ 646 DUK_UNREF((thr)); \ 647 } while (0) 648 #define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 649 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 650 DUK_TVAL_SET_NUMBER_CHKFAST(tv__dst, (newval)); \ 651 DUK_UNREF((thr)); \ 652 } while (0) 653 #define DUK_TVAL_SET_DOUBLE_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 654 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 655 DUK_TVAL_SET_DOUBLE(tv__dst, (newval)); \ 656 DUK_UNREF((thr)); \ 657 } while (0) 658 #define DUK_TVAL_SET_NAN_UPDREF_ALT0(thr,tvptr_dst) do { \ 659 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 660 DUK_TVAL_SET_NAN(tv__dst); \ 661 DUK_UNREF((thr)); \ 662 } while (0) 663 #if defined(DUK_USE_FASTINT) 664 #define DUK_TVAL_SET_FASTINT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 665 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 666 DUK_TVAL_SET_FASTINT(tv__dst, (newval)); \ 667 DUK_UNREF((thr)); \ 668 } while (0) 669 #define DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 670 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 671 DUK_TVAL_SET_FASTINT_I32(tv__dst, (newval)); \ 672 DUK_UNREF((thr)); \ 673 } while (0) 674 #define DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 675 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 676 DUK_TVAL_SET_FASTINT_U32(tv__dst, (newval)); \ 677 DUK_UNREF((thr)); \ 678 } while (0) 679 #else 680 #define DUK_TVAL_SET_DOUBLE_CAST_UPDREF(thr,tvptr_dst,newval) \ 681 DUK_TVAL_SET_DOUBLE_UPDREF((thr), (tvptr_dst), (duk_double_t) (newval)) 682 #endif /* DUK_USE_FASTINT */ 683 684 #define DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0(thr,tvptr_dst,lf_v,lf_fp,lf_flags) do { \ 685 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 686 DUK_TVAL_SET_LIGHTFUNC(tv__dst, (lf_v), (lf_fp), (lf_flags)); \ 687 DUK_UNREF((thr)); \ 688 } while (0) 689 690 #define DUK_TVAL_SET_STRING_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 691 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 692 DUK_TVAL_SET_STRING(tv__dst, (newval)); \ 693 DUK_UNREF((thr)); \ 694 } while (0) 695 696 #define DUK_TVAL_SET_OBJECT_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 697 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 698 DUK_TVAL_SET_OBJECT(tv__dst, (newval)); \ 699 DUK_UNREF((thr)); \ 700 } while (0) 701 702 #define DUK_TVAL_SET_BUFFER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 703 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 704 DUK_TVAL_SET_BUFFER(tv__dst, (newval)); \ 705 DUK_UNREF((thr)); \ 706 } while (0) 707 708 #define DUK_TVAL_SET_POINTER_UPDREF_ALT0(thr,tvptr_dst,newval) do { \ 709 duk_tval *tv__dst; tv__dst = (tvptr_dst); \ 710 DUK_TVAL_SET_POINTER(tv__dst, (newval)); \ 711 DUK_UNREF((thr)); \ 712 } while (0) 713 714 #define DUK_TVAL_SET_TVAL_UPDREF_ALT0(thr,tvptr_dst,tvptr_src) do { \ 715 duk_tval *tv__dst, *tv__src; \ 716 tv__dst = (tvptr_dst); tv__src = (tvptr_src); \ 717 DUK_TVAL_SET_TVAL(tv__dst, tv__src); \ 718 DUK_UNREF((thr)); \ 719 } while (0) 720 721 #define DUK_TVAL_SET_UNDEFINED_UPDREF DUK_TVAL_SET_UNDEFINED_UPDREF_ALT0 722 #define DUK_TVAL_SET_UNUSED_UPDREF DUK_TVAL_SET_UNUSED_UPDREF_ALT0 723 #define DUK_TVAL_SET_NULL_UPDREF DUK_TVAL_SET_NULL_UPDREF_ALT0 724 #define DUK_TVAL_SET_BOOLEAN_UPDREF DUK_TVAL_SET_BOOLEAN_UPDREF_ALT0 725 #define DUK_TVAL_SET_NUMBER_UPDREF DUK_TVAL_SET_NUMBER_UPDREF_ALT0 726 #define DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF DUK_TVAL_SET_NUMBER_CHKFAST_UPDREF_ALT0 727 #define DUK_TVAL_SET_DOUBLE_UPDREF DUK_TVAL_SET_DOUBLE_UPDREF_ALT0 728 #define DUK_TVAL_SET_NAN_UPDREF DUK_TVAL_SET_NAN_UPDREF_ALT0 729 #if defined(DUK_USE_FASTINT) 730 #define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_FASTINT_UPDREF_ALT0 731 #define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_FASTINT_I32_UPDREF_ALT0 732 #define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_FASTINT_U32_UPDREF_ALT0 733 #else 734 #define DUK_TVAL_SET_FASTINT_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF /* XXX: fast-int-to-double */ 735 #define DUK_TVAL_SET_FASTINT_I32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF 736 #define DUK_TVAL_SET_FASTINT_U32_UPDREF DUK_TVAL_SET_DOUBLE_CAST_UPDREF 737 #endif /* DUK_USE_FASTINT */ 738 #define DUK_TVAL_SET_LIGHTFUNC_UPDREF DUK_TVAL_SET_LIGHTFUNC_UPDREF_ALT0 739 #define DUK_TVAL_SET_STRING_UPDREF DUK_TVAL_SET_STRING_UPDREF_ALT0 740 #define DUK_TVAL_SET_OBJECT_UPDREF DUK_TVAL_SET_OBJECT_UPDREF_ALT0 741 #define DUK_TVAL_SET_BUFFER_UPDREF DUK_TVAL_SET_BUFFER_UPDREF_ALT0 742 #define DUK_TVAL_SET_POINTER_UPDREF DUK_TVAL_SET_POINTER_UPDREF_ALT0 743 744 #define DUK_TVAL_SET_TVAL_UPDREF DUK_TVAL_SET_TVAL_UPDREF_ALT0 745 #define DUK_TVAL_SET_TVAL_UPDREF_FAST DUK_TVAL_SET_TVAL_UPDREF_ALT0 746 #define DUK_TVAL_SET_TVAL_UPDREF_SLOW DUK_TVAL_SET_TVAL_UPDREF_ALT0 747 748 #endif /* DUK_USE_REFERENCE_COUNTING */ 749 750 #endif /* DUK_HEAPHDR_H_INCLUDED */ 751
