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builtin_lookup: do not goto into a branch

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I'm not necessarily against every goto in general, but jumping into a
branch is definitely a bad idea.  Better refactor.
This commit is contained in:
卜部昌平 2020-06-11 13:23:56 +09:00
parent 9ec4f1f205
commit 8d182b04ed
Notes: git 2020-06-29 11:07:14 +09:00
1 changed files with 14 additions and 14 deletions
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28
builtin.c
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@ -12,27 +12,24 @@
#include "builtin_binary.inc"
static const unsigned char *
bin4feature(const struct builtin_binary *bb, const char *feature, size_t *psize)
{
*psize = bb->bin_size;
return strcmp(bb->feature, feature) ? NULL : bb->bin;
}
static const unsigned char*
builtin_lookup(const char *feature, size_t *psize)
{
static int index = 0;
int i = index++;
const unsigned char *bin = bin4feature(&builtin_binary[index++], feature, psize);
// usually, `builtin_binary` order is loading order at miniruby.
if (LIKELY(strcmp(builtin_binary[i].feature, feature) == 0)) {
found:
*psize = builtin_binary[i].bin_size;
return builtin_binary[i].bin;
for (const struct builtin_binary *bb = &builtin_binary[0]; bb->feature &&! bin; bb++) {
bin = bin4feature(bb++, feature, psize);
}
else {
if (0) fprintf(stderr, "builtin_lookup: cached index miss (index:%d)\n", i);
for (i=0; i<BUILTIN_BINARY_SIZE; i++) {
if (strcmp(builtin_binary[i].feature, feature) == 0) {
goto found;
}
}
}
rb_bug("builtin_lookup: can not find %s\n", feature);
return bin;
}
void
@ -41,6 +38,9 @@ rb_load_with_builtin_functions(const char *feature_name, const struct rb_builtin
// search binary
size_t size;
const unsigned char *bin = builtin_lookup(feature_name, &size);
if (! bin) {
rb_bug("builtin_lookup: can not find %s\n", feature_name);
}
// load binary
rb_vm_t *vm = GET_VM();