From 0dab6d38d596535a09af16a4feba57358ca67849 Mon Sep 17 00:00:00 2001
From: Jesse Luehrs <doy@tozt.net>
Date: Thu, 7 Jul 2011 02:51:45 -0500
Subject: make this actually lexical

---
 dist.ini                   |  1 -
 hook_op_check_smartmatch.h |  3 +--
 lib/smartmatch.pm          | 10 ++--------
 smartmatch.xs              | 47 +++++++++++++++++++++++++---------------------
 t/core.t                   |  4 ++--
 5 files changed, 31 insertions(+), 34 deletions(-)

diff --git a/dist.ini b/dist.ini
index 1c2f7ca..60c256c 100644
--- a/dist.ini
+++ b/dist.ini
@@ -13,7 +13,6 @@ dist = smartmatch
 [=inc::MakeMaker]
 
 [Prereqs]
-B::Hooks::EndOfScope = 0
 B::Hooks::OP::Check = 0.14
 
 [Prereqs / ConfigureRequires]
diff --git a/hook_op_check_smartmatch.h b/hook_op_check_smartmatch.h
index 781a05e..b6ddf19 100644
--- a/hook_op_check_smartmatch.h
+++ b/hook_op_check_smartmatch.h
@@ -4,7 +4,6 @@
 #include "perl.h"
 #include "hook_op_check.h"
 
-UV hook_op_check_smartmatch(void *user_data);
-void *hook_op_check_smartmatch_remove(UV id);
+UV hook_op_check_smartmatch();
 
 #endif
diff --git a/lib/smartmatch.pm b/lib/smartmatch.pm
index fd15e03..505b7c8 100644
--- a/lib/smartmatch.pm
+++ b/lib/smartmatch.pm
@@ -5,7 +5,6 @@ use warnings;
 
 use parent 'DynaLoader';
 use B::Hooks::OP::Check;
-use B::Hooks::EndOfScope;
 
 sub dl_load_flags { 0x01 }
 
@@ -29,16 +28,11 @@ sub import {
         $cb = $engine->can('match') unless ref($cb);
     }
 
-    $^H ||= 0x020000; # HINT_LOCALIZE_HH
-
-    $package->unimport;
-    $^H{'smartmatch_cb'} = smartmatch::register($cb);
-    on_scope_end { $package->unimport };
+    smartmatch::register($cb);
 }
 
 sub unimport {
-    return unless exists $^H{'smartmatch_cb'};
-    smartmatch::unregister(delete $^H{'smartmatch_cb'});
+    smartmatch::unregister();
 }
 
 1;
diff --git a/smartmatch.xs b/smartmatch.xs
index 23a4f17..36d7c51 100644
--- a/smartmatch.xs
+++ b/smartmatch.xs
@@ -10,6 +10,12 @@ STATIC OP*
 smartmatch_cb(pTHX_ OP *o, void *user_data)
 {
     OP *left, *right, *cb_op, *list, *new;
+    SV **cb;
+
+    cb = hv_fetchs(GvHV(PL_hintgv), "smartmatch_cb", 0);
+    if (!cb) {
+        return o;
+    }
 
     left = cBINOPo->op_first;
     right = left->op_sibling;
@@ -17,7 +23,7 @@ smartmatch_cb(pTHX_ OP *o, void *user_data)
     o->op_flags &= ~OPf_KIDS;
     op_free(o);
 
-    cb_op = newCVREF(0, newSVOP(OP_CONST, 0, newSVsv(user_data)));
+    cb_op = newCVREF(0, newSVOP(OP_CONST, 0, newSVsv(*cb)));
     list = newLISTOP(OP_LIST, 0, left, right);
     new = newUNOP(OP_ENTERSUB, OPf_STACKED,
                   op_append_elem(OP_LIST, list, cb_op));
@@ -26,22 +32,19 @@ smartmatch_cb(pTHX_ OP *o, void *user_data)
 }
 
 UV
-hook_op_check_smartmatch(void *user_data)
-{
-    return hook_op_check(OP_SMARTMATCH, smartmatch_cb, user_data);
-}
-
-void *
-hook_op_check_smartmatch_remove(UV id)
+hook_op_check_smartmatch()
 {
-    return hook_op_check_remove(OP_SMARTMATCH, id);
+    return hook_op_check(OP_SMARTMATCH, smartmatch_cb, NULL);
 }
 
 MODULE = smartmatch  PACKAGE = smartmatch
 
 PROTOTYPES: DISABLE
 
-UV
+BOOT:
+    hook_op_check_smartmatch();
+
+void
 register (cb)
     SV *cb;
     CODE:
@@ -49,17 +52,19 @@ register (cb)
             croak("not a coderef");
         }
 
-        RETVAL = hook_op_check_smartmatch(newSVsv(cb));
-    OUTPUT:
-        RETVAL
+        PL_hints |= HINT_LOCALIZE_HH;
+        gv_HVadd(PL_hintgv);
 
-void
-unregister (id)
-    UV id;
-    PREINIT:
-    SV *cb;
-    CODE:
-        cb = hook_op_check_smartmatch_remove(id);
-        if (cb) {
+        SvREFCNT_inc(cb);
+        if (!hv_stores(GvHV(PL_hintgv), "smartmatch_cb", cb)) {
             SvREFCNT_dec(cb);
+            croak("couldn't store the callback");
         }
+
+void
+unregister ()
+    CODE:
+        PL_hints |= HINT_LOCALIZE_HH;
+        gv_HVadd(PL_hintgv);
+
+        hv_delete(GvHV(PL_hintgv), "smartmatch_cb", 13, G_DISCARD);
diff --git a/t/core.t b/t/core.t
index 81b2ac7..69c0942 100644
--- a/t/core.t
+++ b/t/core.t
@@ -86,10 +86,10 @@ while (<DATA>) {
     test_again:
     my $res;
     if ($note =~ /NOWARNINGS/) {
-	$res = eval "use smartmatch 'core'; no warnings; $tstr";
+	$res = eval "no warnings; $tstr";
     }
     else {
-	$res = eval "use smartmatch 'core'; $tstr";
+	$res = eval $tstr;
     }
 
     chomp $@;
-- 
cgit v1.2.3