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authorFather Chrysostomos <sprout@cpan.org>2012-08-28 01:11:30 -0700
committerFather Chrysostomos <sprout@cpan.org>2012-08-28 01:13:17 -0700
commit60f40a389519ab4482a60df44e5e9a03c8710752 (patch)
tree3655689f6491d244b0fa3b5aa0806206490e5fef /parser.h
parent473015163cb5f5f4cc6ef07c71f34b9d6c8608f1 (diff)
downloadperl-60f40a389519ab4482a60df44e5e9a03c8710752.tar.gz
Use PL_parser->lex_shared instead of Sv[IN]VX(PL_linestr)
Unfortunately, PL_parser->linestr and PL_parser->bufptr are both part of the API, so we can’t just move them to PL_parser->lex_shared. Instead, we have to copy them in sublex_push, to make them visible to inner lexing scopes. This allows the SvIVX(PL_linestr) and SvNVX(PL_linestr) hack to be removed. It should also speed things up slightly. We are already allocating PL_parser->lex_shared in sublex_push, so there should be no need to upgrade PL_linestr to SvNVX as well. I was pleasantly surprised to see how the here-doc code seemed to shrink all by itself when modified to account. PL_sublex_info.super_bufptr is also superseded by the addition of ->ls_bufptr to the LEXSHARED struct. Its old values when localised were not visible, being stashed away on the savestack, so it was harder to use.
Diffstat (limited to 'parser.h')
-rw-r--r--parser.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/parser.h b/parser.h
index 16b756f7f0..95083d6e63 100644
--- a/parser.h
+++ b/parser.h
@@ -25,6 +25,8 @@ typedef struct {
ing scopes. */
typedef struct yy_lexshared {
struct yy_lexshared *ls_prev;
+ SV *ls_linestr; /* mirrors PL_parser->linestr */
+ char *ls_bufptr; /* mirrors PL_parser->bufptr */
line_t herelines; /* number of lines in here-doc */
} LEXSHARED;