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5246f4027e
This commit adds a `capacity` field to shapes, and adds shape transitions whenever an object's capacity changes. Objects which are allocated out of a bigger size pool will also make a transition from the root shape to the shape with the correct capacity for their size pool when they are allocated. This commit will allow us to remove numiv from objects completely, and will also mean we can guarantee that if two objects share shapes, their IVs are in the same positions (an embedded and extended object cannot share shapes). This will enable us to implement ivar sets in YJIT using object shapes. Co-Authored-By: Aaron Patterson <tenderlove@ruby-lang.org>
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
#ifndef INTERNAL_VARIABLE_H /*-*-C-*-vi:se ft=c:*/
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#define INTERNAL_VARIABLE_H
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/**
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @brief Internal header for variables.
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*/
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#include "ruby/internal/config.h"
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#include <stddef.h> /* for size_t */
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#include "constant.h" /* for rb_const_entry_t */
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#include "ruby/internal/stdbool.h" /* for bool */
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#include "ruby/ruby.h" /* for VALUE */
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#include "shape.h" /* for rb_shape_t */
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/* global variable */
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#define ROBJECT_TRANSIENT_FLAG FL_USER2
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/* variable.c */
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void rb_gc_mark_global_tbl(void);
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void rb_gc_update_global_tbl(void);
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size_t rb_generic_ivar_memsize(VALUE);
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VALUE rb_search_class_path(VALUE);
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VALUE rb_attr_delete(VALUE, ID);
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void rb_autoload_str(VALUE mod, ID id, VALUE file);
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VALUE rb_autoload_at_p(VALUE, ID, int);
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NORETURN(VALUE rb_mod_const_missing(VALUE,VALUE));
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rb_gvar_getter_t *rb_gvar_getter_function_of(ID);
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rb_gvar_setter_t *rb_gvar_setter_function_of(ID);
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void rb_gvar_readonly_setter(VALUE v, ID id, VALUE *_);
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void rb_gvar_ractor_local(const char *name);
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static inline bool ROBJ_TRANSIENT_P(VALUE obj);
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static inline void ROBJ_TRANSIENT_SET(VALUE obj);
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static inline void ROBJ_TRANSIENT_UNSET(VALUE obj);
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struct gen_ivtbl;
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int rb_gen_ivtbl_get(VALUE obj, ID id, struct gen_ivtbl **ivtbl);
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RUBY_SYMBOL_EXPORT_BEGIN
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/* variable.c (export) */
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void rb_mark_generic_ivar(VALUE);
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void rb_mv_generic_ivar(VALUE src, VALUE dst);
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VALUE rb_const_missing(VALUE klass, VALUE name);
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int rb_class_ivar_set(VALUE klass, ID vid, VALUE value);
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void rb_iv_tbl_copy(VALUE dst, VALUE src);
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RUBY_SYMBOL_EXPORT_END
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MJIT_SYMBOL_EXPORT_BEGIN
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VALUE rb_ivar_lookup(VALUE obj, ID id, VALUE undef);
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VALUE rb_gvar_get(ID);
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VALUE rb_gvar_set(ID, VALUE);
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VALUE rb_gvar_defined(ID);
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void rb_const_warn_if_deprecated(const rb_const_entry_t *, VALUE, ID);
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rb_shape_t * rb_grow_iv_list(VALUE obj);
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void rb_ensure_iv_list_size(VALUE obj, uint32_t len, uint32_t newsize);
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struct gen_ivtbl * rb_ensure_generic_iv_list_size(VALUE obj, uint32_t newsize);
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MJIT_SYMBOL_EXPORT_END
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static inline bool
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ROBJ_TRANSIENT_P(VALUE obj)
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{
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#if USE_TRANSIENT_HEAP
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return FL_TEST_RAW(obj, ROBJECT_TRANSIENT_FLAG);
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#else
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return false;
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#endif
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}
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static inline void
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ROBJ_TRANSIENT_SET(VALUE obj)
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{
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#if USE_TRANSIENT_HEAP
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FL_SET_RAW(obj, ROBJECT_TRANSIENT_FLAG);
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#endif
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}
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static inline void
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ROBJ_TRANSIENT_UNSET(VALUE obj)
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{
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#if USE_TRANSIENT_HEAP
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FL_UNSET_RAW(obj, ROBJECT_TRANSIENT_FLAG);
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#endif
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}
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#endif /* INTERNAL_VARIABLE_H */
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