ruby/internal/object.h
John Hawthorn 4c2ae6e2ad Always ensure room in rb_obj_embedded_size
Although the issue only occurred on debug builds, we should always be
requesting a size large enough to fit the object when it expands to the
heap, rather than just hoping the GC provides enough room.
2026-04-09 17:39:58 -07:00

73 lines
2.5 KiB
C

#ifndef INTERNAL_OBJECT_H /*-*-C-*-vi:se ft=c:*/
#define INTERNAL_OBJECT_H
/**
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
* @brief Internal header for Object.
*/
#include "ruby/ruby.h" /* for VALUE */
/* object.c */
VALUE rb_class_allocate_instance(VALUE klass);
VALUE rb_class_search_ancestor(VALUE klass, VALUE super);
NORETURN(void rb_undefined_alloc(VALUE klass));
double rb_num_to_dbl(VALUE val);
VALUE rb_obj_dig(int argc, VALUE *argv, VALUE self, VALUE notfound);
VALUE rb_obj_clone_setup(VALUE obj, VALUE clone, VALUE kwfreeze);
VALUE rb_obj_dup_setup(VALUE obj, VALUE dup);
VALUE rb_immutable_obj_clone(int, VALUE *, VALUE);
VALUE rb_check_convert_type_with_id(VALUE,int,const char*,ID);
int rb_bool_expected(VALUE, const char *, int raise);
static inline void RBASIC_CLEAR_CLASS(VALUE obj);
static inline void RBASIC_SET_CLASS_RAW(VALUE obj, VALUE klass);
static inline void RBASIC_SET_CLASS(VALUE obj, VALUE klass);
RUBY_SYMBOL_EXPORT_BEGIN
/* object.c (export) */
int rb_opts_exception_p(VALUE opts, int default_value);
RUBY_SYMBOL_EXPORT_END
CONSTFUNC(VALUE rb_obj_equal(VALUE obj1, VALUE obj2));
CONSTFUNC(VALUE rb_obj_not(VALUE obj));
VALUE rb_obj_not_equal(VALUE obj1, VALUE obj2);
void rb_obj_copy_ivar(VALUE dest, VALUE obj);
VALUE rb_false(VALUE obj);
VALUE rb_convert_type_with_id(VALUE v, int t, const char* nam, ID mid);
VALUE rb_obj_size(VALUE self, VALUE args, VALUE obj);
VALUE rb_get_freeze_opt(int argc, VALUE *argv);
static inline void
RBASIC_SET_CLASS_RAW(VALUE obj, VALUE klass)
{
const VALUE *ptr = &RBASIC(obj)->klass;
*(VALUE *)ptr = klass;
}
static inline void
RBASIC_CLEAR_CLASS(VALUE obj)
{
RBASIC_SET_CLASS_RAW(obj, 0);
}
static inline void
RBASIC_SET_CLASS(VALUE obj, VALUE klass)
{
VALUE oldv = RBASIC_CLASS(obj);
RBASIC_SET_CLASS_RAW(obj, klass);
RB_OBJ_WRITTEN(obj, oldv, klass);
}
static inline size_t
rb_obj_embedded_size(uint32_t fields_count)
{
size_t size = offsetof(struct RObject, as.ary) + (sizeof(VALUE) * fields_count);
// Ensure enough room for the heap pointer if this expands
if (size < sizeof(struct RObject)) size = sizeof(struct RObject);
return size;
}
#endif /* INTERNAL_OBJECT_H */