nailing-cargo: Refactor target_dependency_tables

NFC.  This function needs enhancing.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/nailing-cargo b/nailing-cargo
index 512e55916ee2da7af03b872560565ebc4dad2a99..d196db5fbb30c5f9dd150f29f25631a141f6d624 100755 (executable)
--- a/nailing-cargo
+++ b/nailing-cargo
@@ -243,10 +243,14 @@ sub get_dependency_tables ($) {
   my ($toml) = @_;
   my @keys = qw(dependencies build-dependencies dev-dependencies);
   my @r;
-  foreach my $k (@keys) {
-    my $deps = $toml->{$k};
-    push @r, $deps if $deps;
-  }
+  my $process = sub {
+    my ($node) = @_;
+    foreach my $k (@keys) {
+      my $deps = $node->{$k};
+      push @r, $deps if $deps;
+    }
+  };
+  $process->($toml);
   @r;
 }