(no commit message)

[git.ikiwiki.info.git] / IkiWiki.pm

diff --git a/IkiWiki.pm b/IkiWiki.pm
index cd93fe969de8a38b4356ad041ba7c1cf6de3b801..1e9d1ca2a73d42343534fb582dd50542926b71f1 100644 (file)
--- a/IkiWiki.pm
+++ b/IkiWiki.pm
@@ -2071,7 +2071,7 @@ use overload (
        '""'    => sub { $_[0][0] },
        '0+'    => sub { 0 },
        '!'     => sub { bless $_[0], 'IkiWiki::SuccessReason'},
-       '&'     => sub { $_[0]->merge_influences($_[1]); $_[0] },
+       '&'     => sub { $_[0]->merge_influences($_[1], 1); $_[0] },
        '|'     => sub { $_[1]->merge_influences($_[0]); $_[1] },
        fallback => 1,
 );
@@ -2084,7 +2084,7 @@ use overload (
        '""'    => sub { $_[0][0] },
        '0+'    => sub { 1 },
        '!'     => sub { bless $_[0], 'IkiWiki::FailReason'},
-       '&'     => sub { $_[1]->merge_influences($_[0]); $_[1] },
+       '&'     => sub { $_[1]->merge_influences($_[0], 1); $_[1] },
        '|'     => sub { $_[0]->merge_influences($_[1]); $_[0] },
        fallback => 1,
 );
@@ -2110,8 +2110,17 @@ sub influences_static {
 sub merge_influences {
        my $this=shift;
        my $other=shift;
-       foreach my $influence (keys %{$other->[1]}) {
-               $this->[1]{$influence} |= $other->[1]{$influence};
+       my $anded=shift;
+
+       if (! $anded || (($this || %{$this->[1]}) &&
+                       ($other || %{$other->[1]}))) {
+               foreach my $influence (keys %{$other->[1]}) {
+                       $this->[1]{$influence} |= $other->[1]{$influence};
+               }
+       }
+       else {
+               # influence blocker
+               $this->[1]={};
        }
 }
 
@@ -2168,7 +2177,7 @@ sub match_link ($$;@) {
        my $from=exists $params{location} ? $params{location} : '';
 
        my $links = $IkiWiki::links{$page};
-       return IkiWiki::FailReason->new("$page has no links")
+       return IkiWiki::FailReason->new("$page has no links", "" => 1)
                unless $links && @{$links};
        my $bestlink = IkiWiki::bestlink($from, $link);
        foreach my $p (@{$links}) {