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2016-07-19variable.c: exclude private constantsnobu
* variable.c (rb_local_constants_i): exclude private constants when excluding inherited constants too. [Bug #12345] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55705 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-06-19variable.c: consider lengthnobu
* variable.c (rb_path_to_class): consider the string length instead of a terminator. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55449 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-06-19variable.c: rb_const_searchnobu
* variable.c (rb_path_to_class): search the constant at once instead of checking if defined and then getting it. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55448 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-30variable.c: check lengthnobu
* variable.c (check_autoload_required): check length first before checking the first byte. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55207 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-27variable.c: hidden constantsnobu
* variable.c (rb_local_constants_i): exclude hidden constants. [ruby-core:75575] [Bug #12389] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55182 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-05-15vm_insnhelper.c: deprecated constant in classnobu
* vm_insnhelper.c (vm_get_ev_const): warn deprecated constant even in the class context. [ruby-core:75505] [Bug #12382] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55005 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-04-22variable.c: fix implicit conversionnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54701 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-04-22* variable.c: use uint32_t instead of long to avoid confusion aboutnaruse
the type of ivtbl->numiv. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54700 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-03-23* variable.c: Added documentation about order of `Module#constants`hsbt
[ci skip][Bug #12121][ruby-dev:49505][fix GH-1301] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54231 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-14variable.c: matched backrefs onlynobu
* variable.c (rb_f_global_variables): add matched back references only, as well as defiend? operator. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53534 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-14variable.c: $1..$9 in global_variablesnobu
* variable.c (rb_f_global_variables): add $1..$9 only if $~ is set. fix the condition removed at r14014. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53530 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-12resolve class name earlier and more consistentlynormal
This further avoids class name resolution issues which came about due to relying on hash table ordering before r53376. Pre-caching the class name when it is never used raises memory use, but the overall gain from moving away from st still gives us a small gain. Reverting r53376 and this patch and testing with "valgrind -v ./ruby -rrdoc -eexit" on x86 (32-bit) shows: before: in use at exit: 1,662,239 bytes in 25,286 blocks total heap usage: 49,514 allocs, 24,228 frees, 6,005,561 bytes allocated after, with this change: in use at exit: 1,646,529 bytes in 24,572 blocks total heap usage: 48,891 allocs, 24,319 frees, 6,003,921 bytes allocated * class.c (Init_class_hierarchy): resolve name for rb_cObject ASAP * object.c (rb_mod_const_set): move name resolution to rb_const_set * variable.c (rb_const_set): do class resolution here [ruby-core:72807] [Bug #11977] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53518 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-04variable.c (rb_mod_deprecate_constant): [DOC] addedsho-h
documentation for Module#deprecate_constant. [ci skip] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53429 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-29use id_table for constant tablesnormal
valgrind 3.9.0 on x86-64 reports a minor reduction in memory usage when loading only RubyGems and RDoc by running: ruby -rrdoc -eexit before: HEAP SUMMARY: in use at exit: 2,913,448 bytes in 27,394 blocks total heap usage: 48,362 allocs, 20,968 frees, 9,034,621 bytes alloc after: HEAP SUMMARY: in use at exit: 2,880,056 bytes in 26,712 blocks total heap usage: 47,791 allocs, 21,079 frees, 9,046,507 bytes alloc * class.c (struct clone_const_arg): adjust for id_table (clone_const): ditto (clone_const_i): ditto (rb_mod_init_copy): ditto (rb_singleton_class_clone_and_attach): ditto (rb_include_class_new): ditto (include_modules_at): ditto * constant.h (rb_free_const_table): ditto * gc.c (free_const_entry_i): ditto (rb_free_const_table): ditto (obj_memsize_of): ditto (mark_const_entry_i): ditto (mark_const_tbl): ditto * internal.h (struct rb_classext_struct): ditto * object.c (rb_mod_const_set): resolve class name on assignment * variable.c (const_update): replace with const_tbl_update (const_tbl_update): new function (fc_i): adjust for id_table (find_class_path): ditto (autoload_const_set): st_update => const_tbl_update (rb_const_remove): adjust for id_table (sv_i): ditto (rb_local_constants_i): ditto (rb_local_constants): ditto (rb_mod_const_at): ditto (rb_mod_const_set): ditto (rb_const_lookup): ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53376 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-21* variable.c (struct ivar_update): rename "extended" to "iv_extended"ngoto
to avoid name conflict with /usr/include/floatingpoint.h on Solaris. [Bug #11853] [ruby-dev:49448] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53230 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-08make local symbols staticnobu
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52964 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-12-06introduce rb_autoload_str to replace rb_autoloadnormal
rb_autoload_str may be safer by preventing premature GC. It can also be more efficient by passing a pre-frozen string that can be deduped using rb_fstring. Common autoload callers (e.g. rubygems, rdoc) already use string literals as the file argument. There seems to be no reason to expose rb_autoload_str to the public C API since autoload is not performance-critical. Applications may declare autoloads in Ruby code or via rb_funcall; so merely deprecate rb_autoload without exposing rb_autoload_str to new users. Running: valgrind -v ruby -rrdoc -rubygems -e exit shows a minor memory reduction (32-bit userspace) before: in use at exit: 1,600,621 bytes in 28,819 blocks total heap usage: 55,786 allocs, 26,967 frees, 6,693,790 bytes allocated after: in use at exit: 1,599,778 bytes in 28,789 blocks total heap usage: 55,739 allocs, 26,950 frees, 6,692,973 bytes allocated * include/ruby/intern.h (rb_autoload): deprecate * internal.h (rb_autoload_str): declare * load.c (rb_mod_autoload): use rb_autoload_str * variable.c (rb_autoload): become compatibility wrapper (rb_autoload_str): hoisted out from old rb_autoload [ruby-core:71369] [Feature #11664] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52909 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-29variable.c: remove spurious #define for globalsnormal
Removing the indirection helps me with readability, at least. It doesn't seem like there are many other places in the Ruby code where macros are used like this. [ruby-core:71735] [Feature #11749] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52790 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-09variable.c (rb_autoload_load): allow recursive callsnormal
* variable.c (rb_autoload_load): allow recursive calls [ruby-core:71345] [Bug #11658] * test/ruby/test_autoload.rb (test_autoload_while_autoloading): new test by: Hiroshi Shirosaki <h.shirosaki@gmail.com> [ruby-core:71390] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-04variable.c: suppress a warningnobu
* variable.c (autoload_reset): initialize formally to suppress a warning from container_off_var() by Visual C. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52446 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-02variable.c: remove casts for rb_class_ivar_set callersnormal
Casting any arguments of rb_class_ivar_set to st_data_t is wrong as the function does not take any st_data_t parameters anymore. There's no functional change, as ID, VALUE, and st_data_t are all the same type, but this reduces confusion and improves maintainability for future type changes. * variable.c (find_class_path): remove cast for rb_class_ivar_set (rb_ivar_set): ditto (rb_cvar_set): ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52427 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-11-02variable.c (rb_global_tbl): convert to id_tablenormal
Mainly this is to reduce casting a tiny amount; and probably nothing depends on the order of globals. Likely no measurable memory usage improvement as globals are not common, but maybe some weird code out there benefits. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52426 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-31use rb_source_loc and rb_source_locationnobu
* error.c, eval.c, eval_error.c, gc.c, variable.c, vm.c, vm_eval.c, vm_trace.c: use rb_source_loc/rb_source_location instead of combination of rb_sourcefile/rb_sourcefilename and rb_sourceline. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52398 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-30variable.c: rb_class_ivar_setnobu
* variable.c (rb_class_ivar_set): rename as class specific ivar setter, and st_table is no longer involved. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52380 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-30variable.c (generic_ivar_remove): return original valuenormal
This fixes a bug introduced in r50678 ("variable.c: use indices for generic ivars") and does not affect any released version of Ruby * variable.c (generic_ivar_remove): adjust type, set valp (rb_obj_remove_instance_variable): simplify call * test/ruby/test_object.rb (test_remove_instance_variable): expand for implementation details git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52378 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-30variable.c (rb_st_insert_id_and_value): reduce argsnormal
Minor simplification; this will hopefully make future patches for switching to id_table easier-to-review. * internal.h (rb_st_insert_id_and_value): update prototype * variable.c (rb_st_insert_id_and_value): reduce args (find_class_path): adjust call for less args (rb_ivar_set): ditto (rb_cvar_set): ditto * class.c (rb_singleton_class_attached): ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-29variable.c: reduce heap usage for autoload_data_inormal
For the loader (first thread which hits autoload, it is wasteful to have extra elements on the stack. For the lifetime of the process, it is wasteful to waste 2 words for every autoload entry. So this makes full use of existing stack overhead while reducing heap overhead for long-lived autoload_data_i structs. * variable.c (struct autoload_state): usable as wait-queue head (struct autoload_data_i): remove 2 words of overhead (autoload_i_mark): remove marking for thread (autoload_reset): adjust for struct changes (rb_autoload): ditto (rb_autoloading_value): ditto (rb_autoload_load): ditto (const_update): ditto git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52335 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-28variable.c: additional locking around autoloadnormal
[ruby-core:70075] [ruby-core:71239] [Bug #11384] Note: this open-coding locking method may go into rb_mutex/rb_thread_shield types. It is smaller and simpler and based on the wait queue implementation of the Linux kernel. When/if we get rid of GVL, native mutexes may be used as-is. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52332 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-28error.c: receiver in NameErrornobu
* error.c (rb_name_err_new): store the receiver directly. * error.c (name_err_receiver): return directly stored receiver. [Feature #10881] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52322 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-10-28NameError#receiver of uninitialized constantnobu
* error.c (name_err_mesg_to_str): quote the name if unprintable. * object.c (check_setter_id): use rb_check_id to convert names. * variable.c (uninitialized_constant): use NameError::message to keep the receiver of uninitialized constant. [Feature #10881] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52321 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-09-16variable.c: fail if frozennobu
* variable.c (set_const_visibility): fail if the class/module is frozen. [ruby-core:70828] [Bug #11532] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51881 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-08-04variable.c: wrap long linesnormal
Make code easier to read and hunt for bugs with my tiny terminal. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-07-30variable.c: Module#deprecate_constantnobu
* variable.c (rb_const_get_0): warn deprecated constant reference. * variable.c (rb_mod_deprecate_constant): mark constants to be warned as deprecated. [Feature #11398] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51444 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-06-24variable.c: remove FL_ABLE check for generic ivarsnormal
Missed this in r50758. * variable.c (generic_ivar_set): remove FL_ABLE check (gen_ivar_copy): ditto [ruby-core:69715] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51005 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-06-03variable.c: remove generic ivar support for special constantsnormal
Special constants are all frozen since [Feature #8923] and cannot support ivars. Remove some unused code we had for supporting them. * variable.c (special_generic_ivar): remove flag (givar_i, rb_mark_generic_ivar_tbl): remove functions (rb_free_generic_ivar, rb_ivar_lookup, rb_ivar_delete, generic_ivar_set, rb_ivar_set, rb_ivar_defined, rb_copy_generic_ivar, rb_ivar_foreach, rb_ivar_count, rb_obj_remove_instance_variable): adjust for lack of ivar support in special constants * test/ruby/test_variable.rb: test ivars for special consts * internal.h: remove rb_mark_generic_ivar_tbl decl * gc.c (gc_mark_roots): remove rb_mark_generic_ivar_tbl call git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50758 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-30variable.c: avoid compatibility table with generic ivarsnormal
This recovers and improves performance of Marshal.dump/load on Time objects compared to when we implemented generic ivars entirely using st_table. This also recovers some performance on other generic ivar objects, but does not bring bring Marshal.dump/load performance up to previous speeds. benchmark results: minimum results in each 10 measurements. Execution time (sec) name trunk geniv after marshal_dump_flo 0.343 0.334 0.335 marshal_dump_load_geniv 0.487 0.527 0.495 marshal_dump_load_time 1.262 1.401 1.257 Speedup ratio: compare with the result of `trunk' (greater is better) name geniv after marshal_dump_flo 1.026 1.023 marshal_dump_load_geniv 0.925 0.985 marshal_dump_load_time 0.901 1.004 * include/ruby/intern.h (rb_generic_ivar_table): deprecate * internal.h (rb_attr_delete): declare * marshal.c (has_ivars): use rb_ivar_foreach (w_ivar): ditto (w_object): update for new interface * time.c (time_mload): use rb_attr_delete * variable.c (generic_ivar_delete): implement (rb_ivar_delete): ditto (rb_attr_delete): ditto [ruby-core:69323] [Feature #11170] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50680 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-29variable.c: use indices for generic ivarsnormal
This reduces memory overhead of ivars for common types such as T_DATA the same way T_OBJECT does it. For 9992 accepted clients on an OpenSSL server, this reduces memory from 77160K to 69248K with the script in https://bugs.ruby-lang.org/issues/11170 * variable.c (static int special_generic_ivar): move (rb_generic_ivar_table): rewrite for compatibility (gen_ivtbl_bytes): new function (generic_ivar_get): update to use ivar index (generic_ivar_update): ditto (generic_ivar_set): ditto (generic_ivar_defined): ditto (generic_ivar_remove): ditto (rb_mark_generic_ivar): ditto (givar_i): ditto (rb_free_generic_ivar): ditto (rb_mark_generic_ivar_tbl): ditto (rb_generic_ivar_memsize): ditto (rb_copy_generic_ivar): ditto (rb_ivar_set): ditto (rb_ivar_foreach): ditto (rb_ivar_count): ditto (givar_mark_i): remove (gen_ivtbl_mark): new function (gen_ivar_each): ditto (iv_index_tbl_extend): update for struct ivar_update (iv_index_tbl_newsize): ditto [ruby-core:69323] [Feature #11170] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50678 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-29variable.c: extract common functions for generic ivar indicesnormal
* variable.c (iv_index_tbl_make): extract from rb_ivar_set (iv_index_tbl_extend): ditto (iv_index_tbl_newsize): ditto (rb_ivar_set): use extracted functions [ruby-core:69323] (Part 1) git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50676 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-21variable.c: generic_iv_tbl is unavoidablenormal
Even miniruby creates one generic ivar (plain "ruby" creates 9), so there's no point in lazily allocating the table. I dumped generic ivar counts with the following trivial patch: --- a/variable.c +++ b/variable.c @@ -24,6 +24,10 @@ static void check_before_mod_set(VALUE, ID, VALUE, const char *); static void setup_const_entry(rb_const_entry_t *, VALUE, VALUE, rb_const_flag_t); static int const_update(st_data_t *, st_data_t *, st_data_t, int); static st_table *generic_iv_tbl; +__attribute__((destructor)) static void count_genivar(void) +{ + fprintf(stderr, "genivars: %zu\n", (size_t)generic_iv_tbl->num_entries); +} void Init_var_tables(void) * variable.c (Init_var_tables): init generic_iv_tbl (rb_generic_ivar_table, generic_ivar_get, generic_ivar_set, generic_ivar_defined, generic_ivar_remove, rb_mark_generic_ivar, givar_i, rb_mark_generic_ivar_tbl, rb_free_generic_ivar, rb_copy_generic_ivar, rb_ivar_foreach, rb_ivar_count): remove checks for uninitialize generic_iv_tbl [ruby-core:69155] [Feature #11146] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50569 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-16allocate structs with wrappernobu
* parse.y (rb_parser_new, ripper_s_allocate): allocate structs with making new wrapper objects and get rid of potential memory leak. * variable.c (rb_autoload): ditto. * ext/digest/digest.c (rb_digest_base_alloc): ditto. * ext/strscan/strscan.c (strscan_s_allocate): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50511 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-14* variable.c: Change autoload to call `require` through Ruby rathertenderlove
than directly calling `rb_require_safe`. This allows things like RubyGems to intercept file loading done though `autoload`. [Feature #11140] * test/ruby/test_autoload.rb: Test for change. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50494 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-05-13variable.c: no intermediate IDsnobu
* variable.c (rb_set_class_path_string, rb_set_class_path): get rid of creating intermediate IDs. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50488 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-04-13variable.c: const_updatenobu
* variable.c (autoload_delete): no longer delete const entry itself. * variable.c (autoload_const_set, rb_const_set): update const entry instead of adding after removal. * variable.c (const_update): extract from rb_const_set. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50288 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-04-13variable.c: setup_const_entrynobu
* variable.c (setup_const_entry): extract rb_const_entry_t setup from rb_const_set. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50287 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-04-13variable.c: ensurenobu
* variable.c (rb_autoload_load): prefer rb_ensure than rb_protect for rollback. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50286 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-03-22variable.c: escape erred namenobu
* variable.c (rb_path_to_class): escape erred name. as precision delimits the formatted result only, not region of an argument string, need to make a substring for the particular region. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50056 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-03-12* internal.h, node.h: move a definition of `struct rb_global_entry'ko1
and related functions from node.h to internal.h. * variable.c: remove unused include pragma. * common.mk: remove unused dependency. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-02-28variable.c: rb_search_class_pathnobu
* variable.c (rb_tmp_class_path): defer making temporary class path string. * variable.c (rb_search_class_path): search class path or return Qnil or Qfalse if unnamed, not creating a temporary path. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49779 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-02-28variable.c: preserve name encoding of subclassnobu
* variable.c (rb_tmp_class_path): preserve name encoding of an anonymous instance of module/class subclass. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49778 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2015-02-06revert r45487nobu
* variable.c (rb_alias_variable): IDs are always immportal now, no pin down is needed. * vm_method.c (rb_method_entry_make): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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