ruby.git/node.c, branch v2_4_0_preview2

node.c: nd_alen only in the head

2016-08-15T11:31:36+00:00

* node.c (dump_array): show nd_alen field in NODE_ARRAY only in
  the first node.  it is nd_end in the rest nodes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55901 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: mark u3 of NODE_MATCH2

2016-03-21T09:55:50+00:00

* node.c (rb_gc_mark_node): NODE_MATCH2 can have nd_args, u3,
  since r54100.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54209 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

optimize named capture assignment

2016-03-14T07:53:39+00:00

* compile.c (compile_named_capture_assign): optimize named capture
  assignments, by replacing repeating global variable accesses
  with `dup`, and by returning the matched result instead of
  re-getting it from the MatchData.

* parse.y (reg_named_capture_assign_gen): build just assignment
  nodes for the optimization.

ex. `/(?.)/ =~ "bar"`

- old
  ```
  0000 putstring        "bar"
  0002 opt_regexpmatch1 /(?.)/
  0004 pop
  0005 getglobal        $~
  0007 branchunless     25
  0009 getglobal        $~
  0011 putobject        :x
  0013 opt_aref         
  0016 setlocal_OP__WC__0 2
  0018 getglobal        $~
  0020 putobject_OP_INT2FIX_O_0_C_
  0021 opt_send_without_block 
  0024 leave
  0025 putobject        nil
  0027 setlocal_OP__WC__0 2
  0029 putobject        nil
  0031 leave
  ```

- new
  ```
  0000 putstring        "bar"
  0002 opt_regexpmatch1 /(?.)/
  0004 getglobal        $~
  0006 dup
  0007 branchunless     14
  0009 putobject        :x
  0011 opt_aref         
  0014 setlocal_OP__WC__0 2
  0016 leave
  ```

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54100 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: no nd_compile_option unless set

2016-03-10T07:27:41+00:00

* node.c (dump_node): show nd_compile_option only when it is set.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54080 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: stringize before expansion

2016-03-10T07:27:40+00:00

* node.c (F_NODE, F_OPTION): stringize member names defined as
  macros before expansion.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54079 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: hidden options hash

2016-03-10T06:19:55+00:00

* node.c (dump_option): nd_compile_option is a hidden hash object,
  cannot call inspect on it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54077 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: NODE_QCALL

2015-12-05T07:58:11+00:00

* node.c (dump_node): dump NODE_QCALL.  [Feature #11537]
  http://twitter.com/watson1978/status/673042429931446272

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52895 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Safe navigation operator

2015-10-22T06:30:12+00:00

* compile.c (iseq_peephole_optimize): peephole optimization for
  branchnil jumps.
* compile.c (iseq_compile_each): generate save navigation operator
  code.
* insns.def (branchnil): new opcode to pop the tos and branch if
  it is nil.
* parse.y (NEW_QCALL, call_op, parser_yylex): parse token '.?'.
  [Feature #11537]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52214 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: update comment

2015-10-12T03:39:23+00:00

* node.c (dump_node): update comment for OP_ASGN2 and fix unused
  field.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52116 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

node.c: no attrset ID in NODE

2015-10-12T03:03:36+00:00

* node.c (dump_node): attrset ID is no longer in NODE_OP_ASGN2.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52114 b2dd03c8-39d4-4d8f-98ff-823fe69b080e