Add exports attribute to proto_library.

Note that it is currently only used by the java_proto_library family of rules (if enabled per flag).

RELNOTES: None
PiperOrigin-RevId: 208601730

1 files changed, 16 insertions, 2 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/proto/SupportData.java b/src/main/java/com/google/devtools/build/lib/rules/proto/SupportData.java
index b3644d4c17..35c0cee485 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/proto/SupportData.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/proto/SupportData.java
@@ -22,6 +22,7 @@ import com.google.devtools.build.lib.analysis.TransitiveInfoCollection;
 import com.google.devtools.build.lib.collect.nestedset.NestedSet;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
 import com.google.devtools.build.lib.skyframe.serialization.autocodec.AutoCodec;
+import javax.annotation.Nullable;
 
 /** A helper class for the *Support classes containing some data from ProtoLibrary. */
 @AutoCodec
@@ -37,7 +38,9 @@ public abstract class SupportData {
       NestedSet<String> transitiveProtoPathFlags,
       String protoSourceRoot,
       NestedSet<String> directProtoSourceRoots,
-      boolean hasProtoSources) {
+      boolean hasProtoSources,
+      @Nullable NestedSet<Artifact> protosInExports,
+      @Nullable NestedSet<String> exportedProtoSourceRoots) {
     return new AutoValue_SupportData(
         nonWeakDepsPredicate,
         directProtoSources,
@@ -46,7 +49,9 @@ public abstract class SupportData {
         transitiveProtoPathFlags,
         protoSourceRoot,
         directProtoSourceRoots,
-        hasProtoSources);
+        hasProtoSources,
+        protosInExports,
+        exportedProtoSourceRoots);
   }
 
   public abstract Predicate<TransitiveInfoCollection> getNonWeakDepsPredicate();
@@ -76,5 +81,14 @@ public abstract class SupportData {
 
   public abstract boolean hasProtoSources();
 
+  /** .proto files in the exported dependencies of this proto_library. */
+  public abstract @Nullable NestedSet<Artifact> getProtosInExports();
+
+  /**
+   * The {@code proto_source_root}'s collected from the current library and the exported
+   * dependencies.
+   */
+  public abstract @Nullable NestedSet<String> getExportedProtoSourceRoots();
+
   SupportData() {}
 }