3 // Special object count and identifiers must be kept in sync with:
4 // core/kernel/kernel.factor
5 // basis/bootstrap/image/image.factor
7 static const cell special_object_count = 85;
10 OBJ_WALKER_HOOK = 3, /* non-local exit hook, used by library only */
11 OBJ_CALLCC_1, /* used to pass the value in callcc1 */
13 ERROR_HANDLER_QUOT = 5, /* quotation called when VM throws an error */
15 OBJ_CELL_SIZE = 7, /* sizeof(cell) */
16 OBJ_CPU, /* CPU architecture */
17 OBJ_OS, /* operating system name */
19 OBJ_ARGS = 10, /* command line arguments */
20 OBJ_STDIN, /* stdin FILE* handle */
21 OBJ_STDOUT, /* stdout FILE* handle */
23 OBJ_IMAGE = 13, /* image path name */
24 OBJ_EXECUTABLE, /* runtime executable path name */
26 OBJ_EMBEDDED = 15, /* are we embedded in another app? */
27 OBJ_EVAL_CALLBACK, /* used when Factor is embedded in a C app */
28 OBJ_YIELD_CALLBACK, /* used when Factor is embedded in a C app */
29 OBJ_SLEEP_CALLBACK, /* used when Factor is embedded in a C app */
31 OBJ_STARTUP_QUOT = 20, /* startup quotation */
32 OBJ_GLOBAL, /* global namespace */
33 OBJ_SHUTDOWN_QUOT, /* shutdown quotation */
35 /* Quotation compilation in quotations.cpp */
57 /* External entry points. These are defined in the files in
58 bootstrap/assembler/ */
59 C_TO_FACTOR_WORD = 43,
60 LAZY_JIT_COMPILE_WORD,
61 UNWIND_NATIVE_FRAMES_WORD,
65 LEAF_SIGNAL_HANDLER_WORD,
66 WIN_EXCEPTION_HANDLER,
69 /* Incremented on every modify-code-heap call; invalidates call( inline
71 REDEFINITION_COUNTER = 52,
73 /* Callback stub generation in callbacks.cpp */
76 /* Polymorphic inline cache generation in inline_cache.cpp */
86 /* Megamorphic cache generation in dispatch.cpp */
91 OBJ_UNDEFINED = 65, /* default quotation for undefined words */
93 OBJ_STDERR = 66, /* stderr FILE* handle */
95 OBJ_STAGE2 = 67, /* have we bootstrapped? */
97 OBJ_CURRENT_THREAD = 68,
101 OBJ_SLEEP_QUEUE = 71,
103 OBJ_VM_COMPILER = 72, /* version string of the compiler we were built with */
105 OBJ_WAITING_CALLBACKS = 73,
107 OBJ_SIGNAL_PIPE = 74, /* file descriptor for pipe used to communicate signals
109 OBJ_VM_COMPILE_TIME = 75, /* when the binary was built */
110 OBJ_VM_VERSION = 76, /* factor version */
111 OBJ_VM_GIT_LABEL = 77, /* git label (git describe --all --long) */
113 /* Canonical truth value. In Factor, 't' */
114 OBJ_CANONICAL_TRUE = 78,
116 /* Canonical bignums. These needs to be kept in the image in case
117 some heap objects refer to them. */
120 OBJ_BIGNUM_NEG_ONE = 81,
123 /* save-image-and-exit discards special objects that are filled in on startup
124 anyway, to reduce image size */
125 inline static bool save_special_p(cell i) {
126 /* Need to fix the order here. */
127 return (i >= OBJ_STARTUP_QUOT && i <= LEAF_SIGNAL_HANDLER_WORD) ||
128 (i >= REDEFINITION_COUNTER && i <= OBJ_UNDEFINED) ||
130 (i >= OBJ_CANONICAL_TRUE && i <= OBJ_BIGNUM_NEG_ONE);
133 template <typename Iterator> void object::each_slot(Iterator& iter) {
134 cell* start = (cell*)this + 1;
135 cell* end = start + slot_count();
137 while (start < end) {