ruby.git/symbol.h, branch v2_4_0_preview2

Use HAVE_BUILTIN___BUILTIN_CONSTANT_P

2016-05-20T13:33:10+00:00

* symbol.h (rb_id2sym): Use HAVE_BUILTIN___BUILTIN_CONSTANT_P


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55084 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.h: unexpected safe call

2016-01-09T09:26:23+00:00

* symbol.h (is_attrset_id): ASET is an attrset ID.  fix
  unexpected safe call instead of an ordinary ASET.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53485 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* ext/objspace/objspace.c: add a new method ObjectSpace.count_symbols.

2015-08-21T11:30:24+00:00

  [Feature #11158]
* symbol.c (rb_sym_immortal_count): added to count immortal symbols.
* symbol.h: ditto.
* test/objspace/test_objspace.rb: add a test for this method.
* NEWS: describe about this method.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51654 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* id_table.h: introduce ID key table.

2015-08-12T08:43:55+00:00

  [Feature #11420]
  This table only manage ID->VALUE table to reduce overhead of st.
  Some functions prefixed rb_id_table_* are provided.
* id_table.c: implement rb_id_table_*.
  There are several algorithms to implement it.
  Now, there are roughly 4 types:
    * st
    * array
    * hash (implemented by  Yura Sokolov)
    * mix of array and hash
  The macro ID_TABLE_IMPL can choose implementation.
  You can see detailes about them at the head of id_table.c.
  At the default, I choose 34 (mix of list and hash).
  This is not final decision.
  Please report your suitable parameters or
  your data structure.
  * symbol.c: introduce rb_id_serial_t and rb_id_to_serial()
    to represent ID by serial number.
  * internal.h: use id_table for method tables.
  * class.c, gc.c, marshal.c, vm.c, vm_method.c: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51541 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.h: memoize hashval for RSymbol

2015-07-27T22:25:30+00:00

This speeds up the hash function for dynamic symbols.
[ruby-core:70129] [Bug #11396], nearly up to Ruby 2.1 levels

Power-of-two hash sizing [Feature #9425] speeds up cases where we
have a good hash, but this means we can no longer hide behind weak
hashes.  Unfortunately, object IDs do not hash well, but we may
use the extra space in the RSymbol struct to memoize the hash value.

Further optimizations should be possible.  For now, the st.c APIs
force us to calculate rb_str_hash redundantly at dsym registration.

* symbol.h (struct RSymbol): add hashval field
* symbol.c (dsymbol_alloc): setup hashval field once
* hash.c (rb_any_hash): return RSymbol->hashval directly
* common.mk: hash.o depends on symbol.h
  Thanks to Bruno Escherl  for the bug report
  [ruby-core:70129] [Bug #11396]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51410 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.c: symbol type predicate functions

2014-11-17T18:20:22+00:00

* symbol.h (is_{local,global,instance,attrset,const,class,junk}_sym):
  fix ID type names.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48470 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.h: optimize ID2SYM

2014-10-27T06:16:16+00:00

* symbol.h (rb_id2sym): optimize for predefined IDs.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48152 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.c: immortal IDs

2014-10-14T07:23:08+00:00

* symbol.c (global_symbols): make IDs immortal always, instead
  of treating dynamic symbols as IDs.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47913 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.h: move struct RSymbol

2014-10-06T13:36:45+00:00

* symbol.h (struct RSymbol): move from internal.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

symbol.c: move macros

2014-08-04T01:05:09+00:00

* symbol.c (SYMBOL_PINNED, SYMBOL_PINNED_P, ID_DYNAMIC_SYM_P),
  (STATIC_SYM2ID, STATIC_ID2SYM): move from symbol.h as these
  macros are used only in symbol.c.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47058 b2dd03c8-39d4-4d8f-98ff-823fe69b080e