symbolic references like ${"foo$index"}*3 would incorrectly warn

that $index was the uninitialized value, when in fact it was $foo1

p4raw-id: //depot/perl@22802

diff --git a/sv.c b/sv.c
index 9972817..10d768f 100644 (file)
--- a/sv.c
+++ b/sv.c
@@ -1000,6 +1000,7 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match)
        goto do_op2;
 
 
+    case OP_RV2SV:
     case OP_CUSTOM:
     case OP_ENTERSUB:
        match = 1; /* XS or custom code could trigger random warnings */

diff --git a/t/lib/warnings/9uninit b/t/lib/warnings/9uninit
index 0c8a8d9..b8ff2fa 100644 (file)
--- a/t/lib/warnings/9uninit
+++ b/t/lib/warnings/9uninit
@@ -311,6 +311,10 @@ $v = @$m1;
 $v = @$g1;
 $v = %$m2;
 $v = %$g2;
+
+$v = ${"foo.bar"}+1;
+$v = ${"foo$m1"}+1;
+$v = ${"foo$g1"}+1;
 EXPECT
 Use of uninitialized value $m1 in scalar dereference at - line 5.
 Use of uninitialized value $g1 in scalar dereference at - line 6.
@@ -318,6 +322,11 @@ Use of uninitialized value $m1 in array dereference at - line 8.
 Use of uninitialized value $g1 in array dereference at - line 9.
 Use of uninitialized value $m2 in hash dereference at - line 10.
 Use of uninitialized value $g2 in hash dereference at - line 11.
+Use of uninitialized value in addition (+) at - line 13.
+Use of uninitialized value $m1 in concatenation (.) or string at - line 14.
+Use of uninitialized value in addition (+) at - line 14.
+Use of uninitialized value $g1 in concatenation (.) or string at - line 15.
+Use of uninitialized value in addition (+) at - line 15.
 ########
 use warnings 'uninitialized';
 my ($m1, $v);