* vm.c (rb_vm_pop_cfunc_frame): added.  It cares c_return event.
	  The patch base by drkaes (Stefan Kaes).
	  [Bug #9321]

	* variable.c (rb_mod_const_missing): use rb_vm_pop_cfunc_frame()
	  instead of rb_frame_pop().

	* vm_eval.c (raise_method_missing): ditto.

	* vm_eval.c (rb_iterate): ditto.

	* internal.h (rb_vm_pop_cfunc_frame): add decl.

	* test/ruby/test_settracefunc.rb: add tests.
	  provided by drkaes (Stefan Kaes).

	* vm.c, eval.c, include/ruby/intern.h (rb_frame_pop): 
	  move definition of rb_frame_pop() and deprecate it.
	  It doesn't care about `return' events.

	* vm.c, eval.c, include/ruby/intern.h (rb_frame_pop):


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46608 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* variable.c (rb_const_set): delete existing entry on redefinition
	  [Bug #9645]

	* test/ruby/test_const.rb (test_redefinition): test for leak


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@46301 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

	* variable.c: adding extra example in docs.
	  patched by Steve Klabnik. [Bug #9210]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@45115 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  RB_OBJ_WRITE and RB_OBJ_WRITTEN.
* array.c, class.c, compile.c, hash.c, internal.h, iseq.c,
  proc.c, process.c, re.c, string.c, variable.c, vm.c,
  vm_eval.c, vm_insnhelper.c, vm_insnhelper.h,
  vm_method.c: catch up this change.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44299 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* variable.c: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44165 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* variable.c (rb_class_path_cached): returns cached class path
  only, without searching and allocating new class path string.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44087 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* variable.c (fc_path, classname): return ID strings without
  unnecessary copying.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44076 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  inherit=false, there is no need to use a hashtable to deduplicate
  constant names. [Feature #9196] [ruby-core:58786]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43956 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  This is another approach to solve an issue discussed at r43530.
  This feature is diabled as default.
  This feature measures an increment of memory consuption by oldgen
  objects. It measures memory consumption for each objects when
  the object is promoted. However, measurement of memory consumption
  is not accurate now. So that this measurement is `estimation'.
  To implement this feature, move memsize_of() function from
  ext/objspace/objspace.c and expose rb_obj_memsize_of().
  Some memsize() functions for T_DATA (T_TYPEDDATA) have problem to
  measure memory size, so that we ignores T_DATA objects now.
  For example, some functions skip NULL check for pointer.
  The macro RGENGC_ESTIMATE_OLDSPACE enables/disables this feature,
  and turned off as default.
  We need to compare 3gen GC and this feature carefully.
  (it is possible to enable both feature)
  We need a help to compare them.
* internal.h: expose rb_obj_memsize_of().
* ext/objspace/objspace.c: use rb_obj_memsize_of() function.
* cont.c (fiber_memsize): fix to check NULL.
* variable.c (autoload_memsize): ditto.
* vm.c (vm_memsize): ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43532 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  safe functions during garbage collection such as xfree().
  On default, T_DATA objects are freed at same points as fianlizers.
  This approach protects issues such as reported by [ruby-dev:35578].
  However, freeing T_DATA objects immediately helps heap usage.
  Most of T_DATA (in other words, most of dfree functions) are safe.
  However, we turned off RUBY_TYPED_FREE_IMMEDIATELY by default
  for safety.
* cont.c: ditto.
* dir.c: ditto.
* encoding.c: ditto.
* enumerator.c: ditto.
* error.c: ditto.
* file.c: ditto.
* gc.c: ditto.
* io.c: ditto.
* iseq.c: ditto.
* marshal.c: ditto.
* parse.y: ditto.
* proc.c: ditto.
* process.c: ditto.
* random.c: ditto.
* thread.c: ditto.
* time.c: ditto.
* transcode.c: ditto.
* variable.c: ditto.
* vm.c: ditto.
* vm_backtrace.c: ditto.
* vm_trace.c: ditto.
* ext/bigdecimal/bigdecimal.c: ditto.
* ext/objspace/objspace.c: ditto.
* ext/stringio/stringio.c: ditto.
* ext/strscan/strscan.c: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43466 b2dd03c8-39d4-4d8f-98ff-823fe69b080e