ruby-changes:25279
From: nobu <ko1@a...>
Date: Fri, 26 Oct 2012 13:24:43 +0900 (JST)
Subject: [ruby-changes:25279] nobu:r37331 (trunk): parse.y: concatenated literals
nobu 2012-10-26 13:24:29 +0900 (Fri, 26 Oct 2012) New Revision: 37331 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=37331 Log: parse.y: concatenated literals * parse.y (literal_concat_gen): merge fixed strings across concatenated literals, after an interpolation. Modified files: trunk/ChangeLog trunk/parse.y Index: ChangeLog =================================================================== --- ChangeLog (revision 37330) +++ ChangeLog (revision 37331) @@ -1,3 +1,8 @@ +Fri Oct 26 13:24:20 2012 Nobuyoshi Nakada <nobu@r...> + + * parse.y (literal_concat_gen): merge fixed strings across + concatenated literals, after an interpolation. + Thu Oct 25 17:48:54 2012 NAKAMURA Usaku <usa@r...> * win32/win32.c (has_redirection): should use shell (cmd.exe) when Index: parse.y =================================================================== --- parse.y (revision 37330) +++ parse.y (revision 37331) @@ -8246,6 +8246,8 @@ literal_concat_gen(struct parser_params *parser, NODE *head, NODE *tail) { enum node_type htype; + NODE *headlast; + VALUE lit; if (!head) return tail; if (!tail) return head; @@ -8254,11 +8256,20 @@ if (htype == NODE_EVSTR) { NODE *node = NEW_DSTR(Qnil); head = list_append(node, head); + htype = NODE_DSTR; } switch (nd_type(tail)) { case NODE_STR: + if (htype == NODE_DSTR && (headlast = head->nd_next->nd_end->nd_head) && + nd_type(headlast) == NODE_STR) { + htype = NODE_STR; + lit = headlast->nd_lit; + } + else { + lit = head->nd_lit; + } if (htype == NODE_STR) { - if (!literal_concat0(parser, head->nd_lit, tail->nd_lit)) { + if (!literal_concat0(parser, lit, tail->nd_lit)) { error: rb_gc_force_recycle((VALUE)head); rb_gc_force_recycle((VALUE)tail); @@ -8280,11 +8291,20 @@ head = tail; } else if (NIL_P(tail->nd_lit)) { + append: head->nd_alen += tail->nd_alen - 1; head->nd_next->nd_end->nd_next = tail->nd_next; head->nd_next->nd_end = tail->nd_next->nd_end; rb_gc_force_recycle((VALUE)tail); } + else if (htype == NODE_DSTR && (headlast = head->nd_next->nd_end->nd_head) && + nd_type(headlast) == NODE_STR) { + lit = headlast->nd_lit; + if (!literal_concat0(parser, lit, tail->nd_lit)) + goto error; + tail->nd_lit = Qnil; + goto append; + } else { nd_set_type(tail, NODE_ARRAY); tail->nd_head = NEW_STR(tail->nd_lit); -- ML: ruby-changes@q... Info: http://www.atdot.net/~ko1/quickml/