Граф коммитов

999 Коммитов

Автор SHA1 Сообщение Дата
naruse 2bcff78b42 * string.c (dispose_string): use rb_str_free for freeing string in
parse.y. by Sokolov Yura <funny.falcon@gmail.com>
  https://github.com/ruby/ruby/pull/87 fix GH-87

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38774 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-01-11 03:00:23 +00:00
nobu e489dc1ff4 parse.y: bare kwrest_mark
* parse.y (f_kwrest): allow bare kwrest_mark as valid syntax.  its
  semantics is still undefined.  [Bug #7662] [ruby-core:51269]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38725 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-01-07 06:42:13 +00:00
nobu 38da1a5398 parse.y: duplicated kwrest name
* parse.y (f_kwrest): reject duplicated kwrest argument name.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38724 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-01-07 06:32:01 +00:00
nobu 77df5bb1b5 parse.y: escaped closing parenthsis
* parse.y (simple_re_meta): escaped closing parenthsis has different
  meaning.  [Bug #7610] [ruby-core:51088]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38663 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-30 14:33:38 +00:00
nobu e878df745c use RB_TYPE_P
* enumerator.c (enumerator_initialize), eval.c (rb_using_refinement),
  (add_activated_refinement), numeric.c (num_interval_step_size),
  parse.y (arg, match_op_gen, cond0), range.c (range_bsearch),
  vm_insnhelper.c (vm_get_iclass): use RB_TYPE_P() to optimize.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38653 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-29 12:22:01 +00:00
nobu 7ea675732a scoped constant op-assignment
* node.h (NODE_OP_CDECL), compile.c (iseq_compile_each),
  parse.y (stmt, arg): allow scoped constant op-assignment.
  [ruby-core:40154] [Bug #5449]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38585 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-24 15:59:31 +00:00
nobu 2ca5e8eeab * parse.y (yycompile0): adjust indent.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38403 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-15 06:10:01 +00:00
nobu 5a565d5c4d parse.y: fix line number
* parse.y (parser_params): parser_tokline to track the line number at
  which token started.  [ruby-dev:46737] [Bug #7559]

* parse.y (fcall): operation with starting line number.

* parse.y (command, primary, method_call): point method name line.

* parse.y (gettable_gen): return token line for __LINE__.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38378 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-14 08:11:00 +00:00
nobu bd0c636211 parse.y: flush string content
* parse.y (parser_here_document): flush string content between new
  line and :string_embexpr.  [ruby-core:48703] [Bug #7255]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-06 08:29:16 +00:00
naruse f68ab20044 * parse.y: replase parser->enc with current_enc.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38171 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-04 01:01:34 +00:00
ko1 f6f388a5bd * array.c, enum.c, insns.def, io.c, numeric.c, parse.y, process.c,
range.c: use prepared IDs.
  A patch from charliesome (Charlie Somerville).
  [Bug #7495]
* common.mk: add dependency to id.h.
* common.mk: replace ID_H_INCLUDES with id.h.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38143 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-12-02 09:57:47 +00:00
naruse b1920c034b * parse.y (parser.utf8): remove unused property.
* parse.y (UTF8_ENC): remove unused macro.

* parse.y (parser_tokadd_utf8): use rb_utf8_encoding() directly.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38093 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-30 19:10:17 +00:00
nobu 8e2839ba2f parse.y: false usage of local variable
* parse.y (parser_yylex): fix false usage of local variable, it cannot
  appear in fname state [ruby-core:49659] [Bug #7408]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38039 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-30 06:24:40 +00:00
nobu 25b0a58bf5 parse.y: LVAR_USED
* parse.y (LVAR_USED): use MSB of ID.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38035 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-30 05:42:01 +00:00
nobu 7e42e55e08 parse.y: IS_lex_state_for
* parse.y (IS_lex_state_for): new macro similar to IS_lex_state() but
  for arbitrary variables.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38034 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-30 05:41:57 +00:00
tadf c07d295204 * include/ruby/util.h: removed extra semicolon in definition of
macro.
	* compile.c: ditto.
	* cont.c: ditto.
	* math.c: ditto.
	* node.c: ditto.
	* parse.y: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37781 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-21 12:42:11 +00:00
tenderlove 4c740bae97 * probes.d: add DTrace probe declarations. [ruby-core:27448]
* array.c (empty_ary_alloc, ary_new): added array create DTrace probe.

* compile.c (rb_insns_name): allowing DTrace probes to access
  instruction sequence name.

* Makefile.in: translate probes.d file to appropriate header file.

* common.mk: declare dependencies on the DTrace header.

* configure.in: add a test for existence of DTrace.

* eval.c (setup_exception): add a probe for when an exception is
  raised.

* gc.c: Add DTrace probes for mark begin and end, and sweep begin and
  end.

* hash.c (empty_hash_alloc): Add a probe for hash allocation.

* insns.def: Add probes for function entry and return.

* internal.h: function declaration for compile.c change.

* load.c (rb_f_load): add probes for `load` entry and exit, require
  entry and exit, and wrapping search_required for load path search.

* object.c (rb_obj_alloc): added a probe for general object creation.

* parse.y (yycompile0): added a probe around parse and compile phase.

* string.c (empty_str_alloc, str_new): DTrace probes for string
  allocation.

* test/dtrace/*: tests for DTrace probes.

* vm.c (vm_invoke_proc): add probes for function return on exception
  raise, hash create, and instruction sequence execution.

* vm_core.h: add probe declarations for function entry and exit.

* vm_dump.c: add probes header file.

* vm_eval.c (vm_call0_cfunc, vm_call0_cfunc_with_frame): add probe on
  function entry and return.

* vm_exec.c: expose instruction number to instruction name function.

* vm_insnshelper.c: add function entry and exit probes for cfunc
  methods.

* vm_insnhelper.h: vm usage information is always collected, so
  uncomment the functions.

12 19:14:50 2012  Akinori MUSHA  <knu@iDaemons.org>

* configure.in (isinf, isnan): isinf() and isnan() are macros on
  DragonFly which cannot be found by AC_REPLACE_FUNCS().  This
  workaround enforces the fact that they exist on DragonFly.

12 15:59:38 2012  Shugo Maeda  <shugo@ruby-lang.org>

* vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo),
  vm_insnhelper.c (vm_search_method): revert r37616 because it's too
  slow.  [ruby-dev:46477]

* test/ruby/test_refinement.rb (test_inline_method_cache): skip
  the test until the bug is fixed efficiently.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-12 21:52:12 +00:00
nobu f030a91d3e * parse.y (warn_balanced): use bit-wise operation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-09 06:57:42 +00:00
naruse 58ef0f06c6 * ruby.c (load_file_internal): set default source encoding as
UTF-8 instead of US-ASCII. [ruby-core:46021] [Feature #6679]

* parse.y (parser_initialize): set default parser encoding as
  UTF-8 instead of US-ASCII.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37485 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-06 00:49:57 +00:00
nobu e672994d14 parse.y: warn static content assign in cond
* parse.y (assign_in_cond): warn for static content object asignments
  in conditional statements.  [ruby-dev:43083] [Feature #4299]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-27 15:49:09 +00:00
shyouhei d090f17f21 * iseq.c (rb_iseq_compile_with_option): Instead of testing
respond_to, just check if the argument is actually a file,
  because by calling user-defined gets something weired can
  happen.  Patch by Glass_saga. [ruby-dev:40202] [Bug #2861]

* parse.y (ripper_initialize): ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37339 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-27 01:16:25 +00:00
nobu 197e7b812c parse.y: bit field lex_state
* parse.y (enum lex_state_e): [EXPERIMENTAL] lex_state as bit field /
  IS_lex_state() macro.  based on the patch by Dave B in
  [ruby-core:23503].  [Feature #1493]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37338 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-27 01:07:59 +00:00
nobu e7576a777c parse.y: concatenated literals
* parse.y (literal_concat_gen): merge fixed strings across
  concatenated literals, after an interpolation.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37331 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-26 04:24:29 +00:00
naruse c6629c48e6 Revert r37316
The commit introduces too many failures and disturbs release engineering.
Re-commit it with fixed tests.

Thu Oct 25 13:09:01 2012  NAKAMURA Usaku  <usa@ruby-lang.org>

       * parse.y: show a warning for concatenating string literals because
         it will be deprecated in the future.
         patched by mame (Yusuke Endoh) at [ruby-core:44207].
         [ruby-core:44156] [Feature #6265]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37327 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-25 11:50:20 +00:00
usa 4a309b765e * parse.y: show a warning for concatenating string literals because
it will be deprecated in the future.
  patched by mame (Yusuke Endoh) at [ruby-core:44207].
  [ruby-core:44156] [Feature #6265]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37317 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-25 04:22:21 +00:00
nobu 676c01bb36 parse.y: fail if yyerror
* parse.y (assignable_gen): fail if yyerror occurred.  fix a bug in
  r36973.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37251 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-10-18 01:30:37 +00:00
nobu f3dd7c4963 parse.y: suppress warnings
* parse.y (id_type): suppress warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36983 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-16 09:09:10 +00:00
nobu 47b642bdd3 parse.y: new_attr_op_assign
* parse.y (new_attr_op_assign): extract.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36975 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-15 09:26:33 +00:00
nobu 2bfc48dd62 parse.y: new_op_assign
* parse.y (new_op_assign): extract.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-15 09:26:31 +00:00
nobu 66d03f5f3c parse.y: switch
* parse.y (gettable_gen, assignable_gen): rewrite sequential if-else
  as switch.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36973 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-15 09:26:28 +00:00
nobu b520b21839 parse.y: static table
* parse.y (lex_state_name): use static table.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-15 09:26:26 +00:00
usa 8ee2226068 * parse.y (rb_warn4S): renamed from rb_warn4(), because the case in
r36911 takes a string.

* parse.y (rb_warn4S): use ripper_warnS() for ripper.

* parse.y (ripper_warnS): now it is used.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36913 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-05 10:22:49 +00:00
naruse 406f6a23d5 * parse.y (rb_warn4): added as a rb_warn variant to warn with explicit
source file name and line in parse.y.

* parse.y (warn_unused_var): use rb_warn4 to suppress warning on ripper.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-09-05 06:23:20 +00:00
nobu 470c941ce5 id.h: independent from parse.h
* template/id.h.tmpl, tool/id2token.rb: make id.h independent from
  parse.h, and make parse.c dependent on it instead.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36864 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-08-31 05:31:20 +00:00
nobu 87450541b3 parse.y: extract function
* parse.y (new_args_tail_gen): extract from dsym rule.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36824 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-08-25 07:21:07 +00:00
ko1 b3b5e626ad * include/ruby/ruby.h: introduce flonum technique for
64bit CPU environment (sizeof(double) == sizeof(VALUE)).
  flonum technique enables to avoid double object creation
  if the double value d is in range about between
  1.72723e-77 < |d| <= 1.15792e+77 or 0.0.
  flonum Float value is immediate and their lowest two bits
  are b10.
  If flonum is activated, then USE_FLONUM macro is 1.
  I'll write detailed in this technique on
  https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/Flonum_tech
* benchmark/bmx_temp.rb: add an benchmark for simple
  Float calculation.
* gc.c (id2ref, rb_obj_id): add flonum Float support.
* include/ruby/intern.h: move decl of rb_float_new(double)
  to include/ruby/ruby.h.
* insns.def, vm.c, vm_insnhelper.c: add flonum optimization
  and simplify source code.
* vm_insnhelper.h (FLONUM_2_P): added.
* marshal.c: support flonum output.
* numeric.c (rb_float_new_in_heap): added.
* parse.y: support flonum.
* random.c: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-08-23 07:22:40 +00:00
nobu 89bcc681f0 parse.y: token name
* parse.y: more descriptive token names in syntax error messages.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36738 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-08-20 14:02:32 +00:00
nobu f7c2791c60 id.h.tmpl: preserved ids
* template/id.h.tmpl (preserved_ids): move from parse.y.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36722 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-08-17 08:35:12 +00:00
ko1 4a4a702e61 * vm_trace.c, vm_core.h: simplify tracing mechanism.
(1) add rb_hook_list_t data structure which includes
  hooks, events (flag) and `need_clean' flag.
  If the last flag is true, then clean the hooks list.
  In other words, deleted hooks are contained by `hooks'.
  Cleanup process should run before traversing the list.
  (2) Change check mechanism
  See EXEC_EVENT_HOOK() in vm_core.h.
  (3) Add `raw' hooks APIs
  Normal hooks are guarded from exception by rb_protect().
  However, this protection is overhead for too simple
  functions which never cause exceptions.  `raw' hooks
  are executed without protection and faster.
  Now, we only provide registration APIs.  All `raw'
  hooks are kicked under protection (same as normal hooks).
* include/ruby/ruby.h: remove internal data definition and
  macros.
* internal.h (ruby_suppress_tracing), vm_trace.c: rename
  ruby_suppress_tracing() to rb_suppress_tracing()
  and remove unused function parameter.
* parse.y: fix to use renamed rb_suppress_tracing().
* thread.c (thread_create_core): no need to set RUBY_VM_VM.
* vm.c (mark_event_hooks): move definition to vm_trace.c.
* vm.c (ruby_vm_event_flags): add a global variable.
  This global variable represents all of Threads and VM's
  event masks (T1#events | T2#events | ... | VM#events).
  You can check the possibility kick trace func or not
  with ruby_vm_event_flags.
  ruby_vm_event_flags is maintained by vm_trace.c.
* cont.c (fiber_switch, rb_cont_call): restore tracing status.
  [Feature #4347]
* test/ruby/test_continuation.rb: ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36715 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-08-16 11:41:24 +00:00
tenderlove 91bd6e711d * parse.y: added symbols and qsymbols productions for %i and %I
support. %i{ .. } returns a list of symbols without interpolation,
  %I{ .. } returns a list of symbols with interpolation.  Thanks to
  Josh Susser for inspiration of this feature. [Feature #4985]

* ext/ripper/eventids2.c: added ripper events for %i and %I.

* test/ripper/test_parser_events.rb: ripper tests

* test/ripper/test_scanner_events.rb: ditto

* test/ruby/test_array.rb: test for %i and %I behavior

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36524 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-07-24 18:10:35 +00:00
nobu 1ea6c81762 remove garbage spaces
* insns.def, parse.y: remove garbage spaces.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36479 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-07-20 07:27:28 +00:00
shugo bbaf9b2800 * parse.y (primary): allow an empty grouped expression as the
operand of the not operator (e.g., not ()).
  [ruby-core:45976] [Bug #6674]

* parse.y (parser_yylex): show no warning for a grouped expression
  as the operand of the not operator (e.g., not (a)) or as an
  argument of a method call without parentheses (e.g., foo (a)).
  [ruby-core:39050] [Bug #5214]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36434 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-07-18 07:05:12 +00:00
nobu fbacb71b38 [Feature #6693]
* parse.y (shadowing_lvar_gen, warn_unused_var): no warnings for
  variables starting with _.  [ruby-core:46160][Feature #6693]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36337 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-07-07 22:36:25 +00:00
nobu 64ae33a18a parse.y: fix GC problem of keyword rest argument
* parse.y (new_args_tail_gen): fix GC problem of keyword rest
  argument.  the wrapped struct should be bound to the wrapping node
  before assignment of child nodes, to get rid of the case the
  children are referred by only the struct pointer which is not a
  subject of GC.  [ruby-core:45744]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36161 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-06-21 08:20:51 +00:00
nobu 45f6cdcdd3 Bug #6403: reset states after empty args
* parse.y (f_arglist): should reset lexical states after empty
  argument list with no parenthesis as well as parenthesized list,
  so that reserved name method definition work.  [ruby-dev:45626]
  [Bug #6403]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35644 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-05-14 07:28:36 +00:00
nobu 4bbb0f9801 Bug #6419: fix cmdarg begin
* parse.y (primary): begin/end block should be isolated from outside.
  [ruby-dev:45631][Bug #6419]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35620 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-05-11 05:23:14 +00:00
nobu ae32e9a225 parse.y: debugging stuff
* parse.y (lex_state_name): returns name for lex_state_e, for debug
  use.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35607 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-05-10 01:18:27 +00:00
nobu 9cf2170e78 * parse.y (parser_yylex): allow spaces between lambda arrow and
parenthesis.  [ruby-dev:45605][Feature #6390]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35520 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-05-02 14:21:23 +00:00
nobu 3380974143 * parse.y (assoc, parser_yylex): add syntax to splat keyword hash.
[ruby-core:44591][Feature #6353]
* compile.c (compile_array_): generate keyword splat insns.
* vm.c (m_core_hash_merge_kwd): merge keyword hash into intermediate
  hash.  leftward argument is prior currently.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35489 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-04-28 21:12:05 +00:00
nobu 5f34227718 * parse.y (parser_yylex): EXPR_BEG by keywords is a start point of
commands.  [ruby-dev:45563][Bug #6347]
* parse.y (superclass): ditto for superclass.
* parse.y (parser_parse_string, parser_here_document): ditto for
  string interpolation.
* parse.y (parser_yylex): ditto for singleton class.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35457 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-04-24 07:04:41 +00:00