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author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-10-22 06:30:12 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2015-10-22 06:30:12 +0000 |
commit | a356fe1c3550892902103f66928426ac8279e072 (patch) | |
tree | bee931e36267315487d45d5776ae8f4a568feddf /node.c | |
parent | 5a599dde0c43b62ff32c8a0c36a05a758a309818 (diff) | |
download | ruby-a356fe1c3550892902103f66928426ac8279e072.tar.gz |
Safe navigation operator
* 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
Diffstat (limited to 'node.c')
-rw-r--r-- | node.c | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -357,7 +357,10 @@ dump_node(VALUE buf, VALUE indent, int comment, NODE *node) ANN(" where [attr]: [nd_next->nd_vid]"); ANN("example: struct.field += foo"); F_NODE(nd_recv, "receiver"); - F_ID(nd_next->nd_vid, "attr"); + F_CUSTOM1(nd_next->nd_vid, "attr") { + if (node->nd_next->nd_aid) A("? "); + A_ID(node->nd_next->nd_vid); + } F_CUSTOM1(nd_next->nd_mid, "operator") { switch (node->nd_next->nd_mid) { case 0: A("0 (||)"); break; |