Make the switch statement discriminate similar names more

efficiently.

p4raw-id: //depot/perl@23745

diff --git a/xsutils.c b/xsutils.c
index 59500bc..49aeeca 100644 (file)
--- a/xsutils.c
+++ b/xsutils.c
@@ -72,7 +72,7 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs)
        case SVt_PVCV:
            switch ((int)len) {
            case 9:
-               if (strEQ(name, "assertion")) {
+               if (memEQ(name, "assertion", 9)) {
                    if (negated)
                        CvFLAGS((CV*)sv) &= ~CVf_ASSERTION;
                    else
@@ -81,27 +81,20 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs)
                }
                break;
            case 6:
-               switch (*name) {
-               case 'a':
-                   if (strEQ(name, "assertion")) {
-                       if (negated)
-                           CvFLAGS((CV*)sv) &= ~CVf_ASSERTION;
-                       else
-                           CvFLAGS((CV*)sv) |= CVf_ASSERTION;
-                       continue;
-                   }
-                   break;
+               switch (name[3]) {
                case 'l':
 #ifdef CVf_LVALUE
-                   if (strEQ(name, "lvalue")) {
+                   if (memEQ(name, "lvalue", 6)) {
                        if (negated)
                            CvFLAGS((CV*)sv) &= ~CVf_LVALUE;
                        else
                            CvFLAGS((CV*)sv) |= CVf_LVALUE;
                        continue;
                    }
+                   break;
+               case 'k':
 #endif /* defined CVf_LVALUE */
-                   if (strEQ(name, "locked")) {
+                   if (memEQ(name, "locked", 6)) {
                        if (negated)
                            CvFLAGS((CV*)sv) &= ~CVf_LOCKED;
                        else
@@ -109,8 +102,8 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs)
                        continue;
                    }
                    break;
-               case 'm':
-                   if (strEQ(name, "method")) {
+               case 'h':
+                   if (memEQ(name, "method", 6)) {
                        if (negated)
                            CvFLAGS((CV*)sv) &= ~CVf_METHOD;
                        else
@@ -125,17 +118,17 @@ modify_SV_attributes(pTHX_ SV *sv, SV **retlist, SV **attrlist, int numattrs)
        default:
            switch ((int)len) {
            case 6:
-               switch (*name) {
-               case 's':
-                   if (strEQ(name, "shared")) {
+               switch (name[5]) {
+               case 'd':
+                   if (memEQ(name, "share", 5)) {
                        if (negated)
                            Perl_croak(aTHX_ "A variable may not be unshared");
                        SvSHARE(sv);
                         continue;
                     }
                    break;
-               case 'u':
-                   if (strEQ(name, "unique")) {
+               case 'e':
+                   if (memEQ(name, "uniqu", 5)) {
                        if (SvTYPE(sv) == SVt_PVGV) {
                            if (negated)
                                GvUNIQUE_off(sv);