[Bast-commits] r4984 - in Devel-BeginLift/1.000/trunk: . lib/Devel t

rafl at dev.catalyst.perl.org rafl at dev.catalyst.perl.org
Sat Oct 25 12:22:39 BST 2008


Author: rafl
Date: 2008-10-25 12:22:39 +0100 (Sat, 25 Oct 2008)
New Revision: 4984

Modified:
   Devel-BeginLift/1.000/trunk/BeginLift.xs
   Devel-BeginLift/1.000/trunk/Makefile.PL
   Devel-BeginLift/1.000/trunk/lib/Devel/BeginLift.pm
   Devel-BeginLift/1.000/trunk/t/generate.t
Log:
Merge branch 'entersub_for_cv'

* entersub_for_cv:
  Plan for t/generate.t.
  Document *_for_cv.
  Turn *_for_cv into classmethods.
  Require EntersubForCV 0.02.
  Rename _setup and _teardown to {setup,teardown}_for_cv.
  Return a nullop if the liftee returns a null sv.
  Port to B::Hooks::OP::Check::EntersubForCV.
  Create branch 'entersub_for_cv'.

Modified: Devel-BeginLift/1.000/trunk/BeginLift.xs
===================================================================
--- Devel-BeginLift/1.000/trunk/BeginLift.xs	2008-10-25 10:51:57 UTC (rev 4983)
+++ Devel-BeginLift/1.000/trunk/BeginLift.xs	2008-10-25 11:22:39 UTC (rev 4984)
@@ -6,72 +6,19 @@
 #include <stdio.h>
 #include <string.h>
 
+#include "hook_op_check_entersubforcv.h"
+
 /* lifted from op.c */
 
 #define LINKLIST(o) ((o)->op_next ? (o)->op_next : linklist((OP*)o))
 
-/* pointer to old PL_check entersub entry to be populated in init */
-
-STATIC OP *(*dbl_old_ck_entersub)(pTHX_ OP *op);
-
-/* replacement PL_check entersub entry */
-
-STATIC OP *dbl_ck_entersub(pTHX_ OP *o) {
+STATIC OP *lift_cb(pTHX_ OP *o, CV *cv, void *user_data) {
   dSP;
-  OP *kid;
-  OP *last;
-  OP *curop;
-  OP *saved_next;
-  HV *stash;
-  I32 type = o->op_type;
   SV *sv;
-  SV** stack_save;
-  HV* to_lift;
-  SV** to_lift_pack_ref;
-  HV* to_lift_pack_hash;
-  SV** to_lift_flag_ref;
+  SV **stack_save;
+  OP *curop, *kid, *saved_next;
+  I32 type = o->op_type;
 
-  o = dbl_old_ck_entersub(aTHX_ o); /* let the original do its job */
-
-  kid = cUNOPo->op_first;
-
-  if (kid->op_type != OP_NULL) /* pushmark for method call ... */
-    return o;
-
-  last = kLISTOP->op_last;
-
-  if (last->op_type != OP_NULL) /* not what we expected */
-    return o;
-
-  kid = cUNOPx(last)->op_first;
-
-  if (kid->op_type != OP_GV) /* not a GV so ignore */
-    return o;
-
-  stash = GvSTASH(kGVOP_gv);
-
-  /* printf("Calling GV %s -> %s\n",
-    HvNAME(stash), GvNAME(kGVOP_gv)); */
-
-  to_lift = get_hv("Devel::BeginLift::lift", FALSE);
-
-  if (!to_lift)
-    return o;
-
-  to_lift_pack_ref = hv_fetch(to_lift, HvNAME(stash), strlen(HvNAME(stash)),
-                               FALSE);
-
-  if (!to_lift_pack_ref || !SvROK(*to_lift_pack_ref))
-    return o; /* not a hashref */
-
-  to_lift_pack_hash = (HV*) SvRV(*to_lift_pack_ref);
-
-  to_lift_flag_ref = hv_fetch(to_lift_pack_hash, GvNAME(kGVOP_gv),
-                                strlen(GvNAME(kGVOP_gv)), FALSE);
-
-  if (!to_lift_flag_ref || !SvTRUE(*to_lift_flag_ref))
-    return o;
-
   /* shamelessly lifted from fold_constants in op.c */
 
   stack_save = SP;
@@ -151,25 +98,18 @@
   }
 }
 
-static int initialized = 0;
-
 MODULE = Devel::BeginLift  PACKAGE = Devel::BeginLift
 
 PROTOTYPES: DISABLE
 
-void
-setup()
+UV
+setup_for_cv (class, CV *cv)
   CODE:
-  if (!initialized++) {
-    dbl_old_ck_entersub = PL_check[OP_ENTERSUB];
-    PL_check[OP_ENTERSUB] = dbl_ck_entersub;
-  }
+    RETVAL = (UV)hook_op_check_entersubforcv (cv, lift_cb, NULL);
+  OUTPUT:
+    RETVAL
 
 void
-teardown()
+teardown_for_cv (class, UV id)
   CODE:
-  /* ensure we only uninit when number of teardown calls matches 
-     number of setup calls */
-  if (initialized && !--initialized) {
-    PL_check[OP_ENTERSUB] = dbl_old_ck_entersub;
-  }
+    hook_op_check_entersubforcv_remove ((hook_op_check_id)id);

Modified: Devel-BeginLift/1.000/trunk/Makefile.PL
===================================================================
--- Devel-BeginLift/1.000/trunk/Makefile.PL	2008-10-25 10:51:57 UTC (rev 4983)
+++ Devel-BeginLift/1.000/trunk/Makefile.PL	2008-10-25 11:22:39 UTC (rev 4984)
@@ -1,12 +1,23 @@
 use inc::Module::Install 0.67;
 
+use ExtUtils::Depends;
+
 name 'Devel-BeginLift';
 all_from 'lib/Devel/BeginLift.pm';
 
+requires 'B::Hooks::OP::Check::EntersubForCV' => '0.02';
+
 build_requires 'Test::More';
+build_requires 'B::Hooks::OP::Check::EntersubForCV';
 
+configure_requires 'ExtUtils::Depends';
+configure_requires 'B::Hooks::OP::Check::EntersubForCV';
+
+my $pkg = ExtUtils::Depends->new('Devel::Declare', 'B::Hooks::OP::Check::EntersubForCV');
+
 WriteMakefile(
   dist => {
     PREOP => 'pod2text lib/Devel/BeginLift.pm >$(DISTVNAME)/README'
-  }
+  },
+  $pkg->get_makefile_vars,
 );

Modified: Devel-BeginLift/1.000/trunk/lib/Devel/BeginLift.pm
===================================================================
--- Devel-BeginLift/1.000/trunk/lib/Devel/BeginLift.pm	2008-10-25 10:51:57 UTC (rev 4983)
+++ Devel-BeginLift/1.000/trunk/lib/Devel/BeginLift.pm	2008-10-25 11:22:39 UTC (rev 4984)
@@ -8,6 +8,7 @@
 
 use vars qw(%lift);
 use base qw(DynaLoader);
+use B::Hooks::OP::Check::EntersubForCV;
 
 bootstrap Devel::BeginLift;
 
@@ -25,14 +26,20 @@
 
 sub setup_for {
   my ($class, $target, $args) = @_;
-  setup();
-  $lift{$target}{$_} = 1 for @$args;
+  $lift{$target} ||= [];
+  push @{ $lift{$target} }, map {
+    $class->setup_for_cv($_);
+  } map {
+    ref $_ eq 'CODE'
+      ? $_
+      : \&{ "${target}::${_}" }
+  } @{ $args };
 }
 
 sub teardown_for {
   my ($class, $target) = @_;
+  $class->teardown_for_cv($_) for @{ $lift{$target} };
   delete $lift{$target};
-  teardown();
 }
 
 =head1 NAME
@@ -104,6 +111,19 @@
 lifting magic is number of teardown_for calls matches number of setup_for
 calls.
 
+=head2 setup_for_cv
+
+  $id = Devel::BeginLift->setup_for_cv(\&code);
+
+Same as C<setup_for>, but only registers begin lifting magic for one code
+reference. Returns an id to be used in C<teardown_for_cv>.
+
+=head2 teardown_for_cv
+
+  Devel::BeginLift->teardown_for_cv($id);
+
+Deregisters begin lifting magic referred to by C<$id>.
+
 =head1 AUTHOR
 
 Matt S Trout - <mst at shadowcatsystems.co.uk>

Modified: Devel-BeginLift/1.000/trunk/t/generate.t
===================================================================
--- Devel-BeginLift/1.000/trunk/t/generate.t	2008-10-25 10:51:57 UTC (rev 4983)
+++ Devel-BeginLift/1.000/trunk/t/generate.t	2008-10-25 11:22:39 UTC (rev 4984)
@@ -6,7 +6,7 @@
 
 BEGIN {
     plan skip_all => "B::Generate required" unless eval { require B::Generate };
-    plan 'no_plan';
+    plan tests => 2;
 }
 
 sub foo {




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