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[1/2] corpus: is_empty: consider actual translation unit contents

Message ID 20200113144451.46359-2-maennich@google.com
State Committed
Headers
Series corpus/writer: omit empty corpora |

Commit Message

Aleksei Vetrov via Libabigail Jan. 1, 2020, midnight UTC 
  A corpus with completely filtered out symbols (exhaustive whitelist),
still contains compilation units, but they are empty. A list of empty
translation units shall be considered empty as no entries need to be
considered. That is useful to skip empty corpora when writing out the
xml for them.

Hence, teach is_empty() to have a look at the actual translation units.

	* src/abg-corpus.cc (corpus::is_empty): consider a list of
	  empty members to be empty.

Signed-off-by: Matthias Maennich <maennich@google.com>
---
 src/abg-corpus.cc | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)
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Patch

diff --git a/src/abg-corpus.cc b/src/abg-corpus.cc
index e37c35f5fbbb..bee87ddbb307 100644
--- a/src/abg-corpus.cc
+++ b/src/abg-corpus.cc
@@ -859,7 +859,18 @@  corpus::set_architecture_name(const string& arch)
 bool
 corpus::is_empty() const
 {
-  return (priv_->members.empty()
+  bool members_empty = true;
+  for (translation_units::const_iterator i = priv_->members.begin(),
+					 e = priv_->members.end();
+       i != e; ++i)
+    {
+      if (!(*i)->is_empty())
+	{
+	  members_empty = false;
+	  break;
+	}
+    }
+  return (members_empty
 	  && priv_->fun_symbol_map
 	  && priv_->fun_symbol_map->empty()
 	  && priv_->var_symbol_map