Ruby  3.1.4p223 (2023-03-30 revision HEAD)
builtin.c
1 #include "internal.h"
2 #include "vm_core.h"
3 #include "iseq.h"
4 #include "builtin.h"
5 
6 #ifdef CROSS_COMPILING
7 
8 #define INCLUDED_BY_BUILTIN_C 1
9 #include "mini_builtin.c"
10 
11 #else
12 
13 #include "builtin_binary.inc"
14 
15 static const unsigned char *
16 bin4feature(const struct builtin_binary *bb, const char *feature, size_t *psize)
17 {
18  *psize = bb->bin_size;
19  return strcmp(bb->feature, feature) ? NULL : bb->bin;
20 }
21 
22 static const unsigned char*
23 builtin_lookup(const char *feature, size_t *psize)
24 {
25  static int index = 0;
26  const unsigned char *bin = bin4feature(&builtin_binary[index++], feature, psize);
27 
28  // usually, `builtin_binary` order is loading order at miniruby.
29  for (const struct builtin_binary *bb = &builtin_binary[0]; bb->feature &&! bin; bb++) {
30  bin = bin4feature(bb++, feature, psize);
31  }
32  return bin;
33 }
34 
35 void
36 rb_load_with_builtin_functions(const char *feature_name, const struct rb_builtin_function *table)
37 {
38  // search binary
39  size_t size;
40  const unsigned char *bin = builtin_lookup(feature_name, &size);
41  if (! bin) {
42  rb_bug("builtin_lookup: can not find %s\n", feature_name);
43  }
44 
45  // load binary
46  rb_vm_t *vm = GET_VM();
47  if (vm->builtin_function_table != NULL) rb_bug("vm->builtin_function_table should be NULL.");
48  vm->builtin_function_table = table;
49  vm->builtin_inline_index = 0;
50  const rb_iseq_t *iseq = rb_iseq_ibf_load_bytes((const char *)bin, size);
51  vm->builtin_function_table = NULL;
52 
53  // exec
54  rb_iseq_eval(rb_iseq_check(iseq));
55 }
56 
57 #endif
58 
59 void
60 Init_builtin(void)
61 {
62  // nothing
63 }
64 
65 void
66 Init_builtin_features(void)
67 {
68  rb_load_with_builtin_functions("gem_prelude", NULL);
69 }
void rb_bug(const char *fmt,...)
Interpreter panic switch.
Definition: error.c:802
Defines RBIMPL_HAS_BUILTIN.