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Faster rb_class_superclass

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This uses the RCLASS_SUPERCLASSES array to quickly find the next
SUPERCLASS of klass which is a T_CLASS.
This commit is contained in:
John Hawthorn 2022-03-04 23:31:37 -08:00
parent 87fb0864bd
commit a8541475d1
Notes: git 2022-04-27 06:09:20 +09:00 
Merged: https://github.com/ruby/ruby/pull/5850
1 changed files with 6 additions and 7 deletions
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13
object.c
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@ -2038,19 +2038,18 @@ rb_class_new_instance(int argc, const VALUE *argv, VALUE klass)
VALUE VALUE
rb_class_superclass(VALUE klass) rb_class_superclass(VALUE klass)
{ {
RUBY_ASSERT(RB_TYPE_P(klass, T_CLASS));
VALUE super = RCLASS_SUPER(klass); VALUE super = RCLASS_SUPER(klass);
if (!super) { if (!super) {
if (klass == rb_cBasicObject) return Qnil; if (klass == rb_cBasicObject) return Qnil;
rb_raise(rb_eTypeError, "uninitialized class"); rb_raise(rb_eTypeError, "uninitialized class");
} else {
super = RCLASS_SUPERCLASSES(klass)[RCLASS_SUPERCLASS_DEPTH(klass) - 1];
RUBY_ASSERT(RB_TYPE_P(klass, T_CLASS));
return super;
} }
while (RB_TYPE_P(super, T_ICLASS)) {
super = RCLASS_SUPER(super);
}
if (!super) {
return Qnil;
}
return super;
} }
VALUE VALUE