Eliminate some uses of sv_setpv() where we already know the length.

Donate the prototype buffer to the CV in Perl_gv_init(), rather than
setting a copy, and immediately free()ing the original.

p4raw-id: //depot/perl@32136

diff --git a/gv.c b/gv.c
index d34d043..24dabf6 100644 (file)
--- a/gv.c
+++ b/gv.c
@@ -214,6 +214,7 @@ Perl_gv_init(pTHX_ GV *gv, HV *stash, const char *name, STRLEN len, int multi)
     const U32 old_type = SvTYPE(gv);
     const bool doproto = old_type > SVt_NULL;
     const char * const proto = (doproto && SvPOK(gv)) ? SvPVX_const(gv) : NULL;
+    const STRLEN protolen = proto ? SvCUR(gv) : 0;
     SV *const has_constant = doproto && SvROK(gv) ? SvRV(gv) : NULL;
     const U32 exported_constant = has_constant ? SvPCS_IMPORTED(gv) : 0;
 
@@ -280,8 +281,8 @@ Perl_gv_init(pTHX_ GV *gv, HV *stash, const char *name, STRLEN len, int multi)
        CvFILE_set_from_cop(GvCV(gv), PL_curcop);
        CvSTASH(GvCV(gv)) = PL_curstash;
        if (proto) {
-           sv_setpv((SV*)GvCV(gv), proto);
-           Safefree(proto);
+           sv_usepvn_flags((SV*)GvCV(gv), proto, protolen,
+                           SV_HAS_TRAILING_NUL);
        }
     }
 }

diff --git a/toke.c b/toke.c
index f8d207c..8487397 100644 (file)
--- a/toke.c
+++ b/toke.c
@@ -3694,10 +3694,10 @@ Perl_yylex(pTHX)
                    if (PL_madskills)
                        PL_faketokens = 1;
 #endif
-                   sv_setpv(PL_linestr,
-                            (const char *)
-                            (PL_minus_p
-                             ? ";}continue{print;}" : ";}"));
+                   if (PL_minus_p)
+                       sv_setpvs(PL_linestr, ";}continue{print;}");
+                   else
+                       sv_setpvs(PL_linestr, ";}");
                    PL_oldoldbufptr = PL_oldbufptr = s = PL_linestart = SvPVX(PL_linestr);
                    PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr);
                    PL_last_lop = PL_last_uni = NULL;
@@ -5534,10 +5534,10 @@ Perl_yylex(pTHX)
                        while (*proto == ';')
                            proto++;
                        if (*proto == '&' && *s == '{') {
-                           sv_setpv(PL_subname,
-                                    (const char *)
-                                    (PL_curstash ?
-                                     "__ANON__" : "__ANON__::__ANON__"));
+                           if (PL_curstash)
+                               sv_setpvs(PL_subname, "__ANON__");
+                           else
+                               sv_setpvs(PL_subname, "__ANON__::__ANON__");
                            PREBLOCK(LSTOPSUB);
                        }
                    }
@@ -6758,9 +6758,10 @@ Perl_yylex(pTHX)
                }
 #endif
                if (!have_name) {
-                   sv_setpv(PL_subname,
-                            (const char *)
-                            (PL_curstash ? "__ANON__" : "__ANON__::__ANON__"));
+                   if (PL_curstash)
+                       sv_setpvs(PL_subname, "__ANON__");
+                   else
+                       sv_setpvs(PL_subname, "__ANON__::__ANON__");
                    TOKEN(ANONSUB);
                }
 #ifndef PERL_MAD