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load.c: move loop invariant condition

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* load.c (rb_feature_p): move this_feature_index condition which is
  loop invariant.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39645 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-03-08 23:54:41 +00:00
parent 8237581a2e
commit 1b7143309b
1 changed files with 35 additions and 33 deletions
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68
load.c
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@ -406,40 +406,42 @@ rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const c
or ends in '/'. This includes both match forms above, as well
as any distractors, so we may ignore all other entries in `features`.
*/
for (i = 0; !NIL_P(this_feature_index); i++) {
VALUE entry;
long index;
if (RB_TYPE_P(this_feature_index, T_ARRAY)) {
if (i >= RARRAY_LEN(this_feature_index)) break;
entry = RARRAY_PTR(this_feature_index)[i];
}
else {
if (i > 0) break;
entry = this_feature_index;
}
index = FIX2LONG(entry);
if (!NIL_P(this_feature_index)) {
for (i = 0; ; i++) {
VALUE entry;
long index;
if (RB_TYPE_P(this_feature_index, T_ARRAY)) {
if (i >= RARRAY_LEN(this_feature_index)) break;
entry = RARRAY_PTR(this_feature_index)[i];
}
else {
if (i > 0) break;
entry = this_feature_index;
}
index = FIX2LONG(entry);
v = RARRAY_PTR(features)[index];
f = StringValuePtr(v);
if ((n = RSTRING_LEN(v)) < len) continue;
if (strncmp(f, feature, len) != 0) {
if (expanded) continue;
if (!load_path) load_path = rb_get_expanded_load_path();
if (!(p = loaded_feature_path(f, n, feature, len, type, load_path)))
continue;
expanded = 1;
f += RSTRING_LEN(p) + 1;
}
if (!*(e = f + len)) {
if (ext) continue;
return 'u';
}
if (*e != '.') continue;
if ((!rb || !ext) && (IS_SOEXT(e) || IS_DLEXT(e))) {
return 's';
}
if ((rb || !ext) && (IS_RBEXT(e))) {
return 'r';
v = RARRAY_PTR(features)[index];
f = StringValuePtr(v);
if ((n = RSTRING_LEN(v)) < len) continue;
if (strncmp(f, feature, len) != 0) {
if (expanded) continue;
if (!load_path) load_path = rb_get_expanded_load_path();
if (!(p = loaded_feature_path(f, n, feature, len, type, load_path)))
continue;
expanded = 1;
f += RSTRING_LEN(p) + 1;
}
if (!*(e = f + len)) {
if (ext) continue;
return 'u';
}
if (*e != '.') continue;
if ((!rb || !ext) && (IS_SOEXT(e) || IS_DLEXT(e))) {
return 's';
}
if ((rb || !ext) && (IS_RBEXT(e))) {
return 'r';
}
}
}