Deparse: don't parenthesise state @a = ...

[perl5.git] / lib / B / Deparse.t

diff --git a/lib/B/Deparse.t b/lib/B/Deparse.t
index f8da646..7d5f3ca 100644 (file)
--- a/lib/B/Deparse.t
+++ b/lib/B/Deparse.t
@@ -13,7 +13,7 @@ BEGIN {
 use warnings;
 use strict;
 
-my $tests = 49; # not counting those in the __DATA__ section
+my $tests = 52; # not counting those in the __DATA__ section
 
 use B::Deparse;
 my $deparse = B::Deparse->new();
@@ -546,6 +546,22 @@ unlike runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path, '-w' ],
        qr'Use of uninitialized value',
       'no warnings for undefined sub';
 
+is runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path ],
+    prog => 'sub f { 1; } BEGIN { *g = \&f; }'),
+    "sub f {\n    1;\n}\nsub BEGIN {\n    *g = \\&f;\n}\n",
+    "sub glob alias shouldn't impede emitting original sub";
+
+is runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path ],
+    prog => 'package Foo; sub f { 1; } BEGIN { *g = \&f; }'),
+    "package Foo;\nsub f {\n    1;\n}\nsub BEGIN {\n    *g = \\&f;\n}\n",
+    "sub glob alias outside main shouldn't impede emitting original sub";
+
+is runperl(stderr => 1, switches => [ '-MO=-qq,Deparse', $path ],
+    prog => 'package Foo; sub f { 1; } BEGIN { *Bar::f = \&f; }'),
+    "package Foo;\nsub f {\n    1;\n}\nsub BEGIN {\n    *Bar::f = \\&f;\n}\n",
+    "sub glob alias in separate package shouldn't impede emitting original sub";
+
+
 done_testing($tests);
 
 __DATA__
@@ -2935,3 +2951,45 @@ use strict 'vars';
 print exists &main::foo;
 print exists &{foo};
 print exists &main::bar;
+# precedence of optimised-away 'keys' (OPpPADHV_ISKEYS/OPpRV2HV_ISKEYS)
+my($r1, %h1, $res);
+our($r2, %h2);
+$res = keys %h1;
+$res = keys %h2;
+$res = keys %$r1;
+$res = keys %$r2;
+$res = keys(%h1) / 2 - 1;
+$res = keys(%h2) / 2 - 1;
+$res = keys(%$r1) / 2 - 1;
+$res = keys(%$r2) / 2 - 1;
+####
+# ditto in presence of sub keys {}
+# CONTEXT sub keys {}
+no warnings;
+my($r1, %h1, $res);
+our($r2, %h2);
+CORE::keys %h1;
+CORE::keys(%h1) / 2;
+$res = CORE::keys %h1;
+$res = CORE::keys %h2;
+$res = CORE::keys %$r1;
+$res = CORE::keys %$r2;
+$res = CORE::keys(%h1) / 2 - 1;
+$res = CORE::keys(%h2) / 2 - 1;
+$res = CORE::keys(%$r1) / 2 - 1;
+$res = CORE::keys(%$r2) / 2 - 1;
+####
+# concat: STACKED: ambiguity between .= and optimised nested
+my($a, $b);
+$b = $a . $a . $a;
+(($a .= $a) .= $a) .= $a;
+####
+# multiconcat: $$ within string
+my($a, $x);
+$x = "${$}abc";
+$x = "\$$a";
+####
+# single state aggregate assignment
+# CONTEXT use feature "state";
+state @a = (1, 2, 3);
+state %h = ('a', 1, 'b', 2);