See this ticket about Symbol GC.
* include/ruby/ruby.h:
Declare few functions.
* rb_sym2id: almost same as old SYM2ID but support dynamic symbols.
* rb_id2sym: almost same as old ID2SYM but support dynamic symbols.
* rb_sym2str: almost same as `rb_id2str(SYM2ID(sym))` but not
pin down a dynamic symbol.
Declare a new struct.
* struct RSymbol: represents a dynamic symbol as object in
Ruby's heaps.
Add few macros.
* STATIC_SYM_P: check a static symbol.
* DYNAMIC_SYM_P: check a dynamic symbol.
* RSYMBOL: cast to RSymbol
* gc.c: declare RSymbol. support T_SYMBOL.
* internal.h: Declare few functions.
* rb_gc_free_dsymbol: free up a dynamic symbol. GC call this
function at a sweep phase.
* rb_str_dynamic_intern: convert a string to a dynamic symbol.
* rb_check_id_without_pindown: not pinning function.
* rb_sym2id_without_pindown: ditto.
* rb_check_id_cstr_without_pindown: ditto.
* string.c (Init_String): String#intern and String#to_sym use
rb_str_dynamic_intern.
* template/id.h.tmpl: use LSB of ID as a flag for determining a
static symbol, so we shift left other ruby_id_types.
* string.c: use rb_sym2str instead `rb_id2str(SYM2ID(sym))` to
avoid pinning.
* load.c: use xx_without_pindown function at creating temporary ID
to avoid pinning.
* object.c: ditto.
* sprintf.c: ditto.
* struct.c: ditto.
* thread.c: ditto.
* variable.c: ditto.
* vm_method.c: ditto.
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constify a parameter (VALUE *).
I believe this incompatibility doesn't break any code.
However, if you have trouble, please tell us.
* eval.c, object.c: ditto.
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* hash.c (rb_objid_hash): return hash value from object ID with a
salt, extract from rb_any_hash().
* object.c (rb_obj_hash): return same value as rb_any_hash().
fix r44125. [ruby-core:59638] [Bug #9381]
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The #== method was hidden in ri/rdoc's output and was highlighting
the line instead.
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* include/ruby/ruby.h (struct RClass): add super, remove iv_index_tbl.
since RCLASS_SUPER() is commonly used inside while loops, we move it
back inside struct RClass to improve cache hits. this provides a
small improvement (1%) in hotspots like rb_obj_is_kind_of()
* internal.h (struct rb_classext_struct): remove super, add
iv_index_table
* internal.h (RCLASS_SUPER): update for new location
* internal.h (RCLASS_SET_SUPER): ditto
* internal.h (RCLASS_IV_INDEX_TBL): ditto
* object.c (rb_class_get_superclass): ditto
* include/ruby/backward/classext.h (RCLASS_SUPER): ditto
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* object.c (rb_mod_const_defined): support nested class path as
well as const_get. [Feature #7414]
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* object.c (rb_mod_const_get): fix typo. should use SYM2ID() not
ID2SYM().
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* object.c (rb_mod_const_get): already interned junk name may be
valid nested class path.
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* object.c (rb_mod_const_get): Symbol must be the entire name, not
a nested constant path, so achieve by its ID directly.
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* class.c (include_modules_at): use RCLASS_M_TBL_WRAPPER for
equality checks. this avoids an unnecessary deference inside a tight
loop, fixing a performance regression from r43973.
* object.c (rb_obj_is_kind_of): ditto.
* object.c (rb_class_inherited_p): ditto.
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Moving existing doc for this comparison to separate section of #dup
Adding examples to document behavior of #dup with Module#extend.
Based on a patch by stevegoobermanhill
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This flag represents that "this object is promoted at least once."
* gc.c, debug.c, object.c: catch up this change.
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rb_mod_const_get, rb_mod_const_set, rb_mod_const_defined
Also added note about NameError exception for invalid constant name
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* object.c (Init_Object): undef Module#prepend_features on Class, as
well as Module#append_features. [Fixes GH-376]
* test_class.rb: Added test for above. And ensure type checking
on similar methods as module_function.
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* object.c (rb_mod_singleton_p): new method Module#singleton_class? to
return whether the receiver is a singleton class or not.
[ruby-core:51087] [Feature #7609]
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where "a" was used instead of "obj".
Fixes GH-349. Patch by @adnandoric
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See this ticet about RGENGC.
* gc.c: Add several flags:
* RGENGC_DEBUG: if >0, then prints debug information.
* RGENGC_CHECK_MODE: if >0, add assertions.
* RGENGC_PROFILE: if >0, add profiling features.
check GC.stat and GC::Profiler.
* include/ruby/ruby.h: disable RGENGC by default (USE_RGENGC == 0).
* array.c: add write barriers for T_ARRAY and generate sunny objects.
* include/ruby/ruby.h (RARRAY_PTR_USE): added. Use this macro if
you want to access raw pointers. If you modify the contents which
pointer pointed, then you need to care write barrier.
* bignum.c, marshal.c, random.c: generate T_BIGNUM sunny objects.
* complex.c, include/ruby/ruby.h: add write barriers for T_COMPLEX
and generate sunny objects.
* rational.c (nurat_s_new_internal), include/ruby/ruby.h: add write
barriers for T_RATIONAL and generate sunny objects.
* internal.h: add write barriers for RBasic::klass.
* numeric.c (rb_float_new_in_heap): generate sunny T_FLOAT objects.
* object.c (rb_class_allocate_instance), range.c:
generate sunny T_OBJECT objects.
* string.c: add write barriers for T_STRING and generate sunny objects.
* variable.c: add write barriers for ivars.
* vm_insnhelper.c (vm_setivar): ditto.
* include/ruby/ruby.h, debug.c: use two flags
FL_WB_PROTECTED and FL_OLDGEN.
* node.h (NODE_FL_CREF_PUSHED_BY_EVAL, NODE_FL_CREF_OMOD_SHARED):
move flag bits.
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RBASIC_CLASS(obj) macro which returns a class of `obj'.
This change is a part of RGENGC branch [ruby-trunk - Feature #8339].
* object.c: add new function rb_obj_reveal().
This function reveal interal (hidden) object by rb_obj_hide().
Note that do not change class before and after hiding.
Only permitted example is:
klass = RBASIC_CLASS(obj);
rb_obj_hide(obj);
....
rb_obj_reveal(obj, klass);
TODO: API design. rb_obj_reveal() should be replaced with others.
TODO: modify constified variables using cast may be harmful for
compiler's analysis and optimizaton.
Any idea to prohibt inserting RBasic::klass directly?
If rename RBasic::klass and force to use RBASIC_CLASS(obj),
then all codes such as `RBASIC(obj)->klass' will be
compilation error. Is it acceptable? (We have similar
experience at Ruby 1.9,
for example "RARRAY(ary)->ptr" to "RARRAY_PTR(ary)".
* internal.h: add some macros.
* RBASIC_CLEAR_CLASS(obj) clear RBasic::klass to make it internal
object.
* RBASIC_SET_CLASS(obj, cls) set RBasic::klass.
* RBASIC_SET_CLASS_RAW(obj, cls) same as RBASIC_SET_CLASS
without write barrier (planned).
* RCLASS_SET_SUPER(a, b) set super class of a.
* array.c, class.c, compile.c, encoding.c, enum.c, error.c, eval.c,
file.c, gc.c, hash.c, io.c, iseq.c, marshal.c, object.c,
parse.y, proc.c, process.c, random.c, ruby.c, sprintf.c,
string.c, thread.c, transcode.c, vm.c, vm_eval.c, win32/file.c:
Use above macros and functions to access RBasic::klass.
* ext/coverage/coverage.c, ext/readline/readline.c,
ext/socket/ancdata.c, ext/socket/init.c,
* ext/zlib/zlib.c: ditto.
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#untrusted? and #tainted?. Also adjusted grammar for $SAFE levels
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to_str was called from rb_is_const_name and rb_to_id before.
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to_str was called from rb_is_class_name and rb_to_id before.
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