Expose Proto providers to Skylark for experimentation.

Providers are still experimental, we'll document them properly later.

--
MOS_MIGRATED_REVID=94274960

1 files changed, 8 insertions, 2 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoSourcesProvider.java b/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoSourcesProvider.java
index 0663f62af4..a06fa4cedf 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoSourcesProvider.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/proto/ProtoSourcesProvider.java
@@ -19,19 +19,22 @@ import com.google.devtools.build.lib.actions.Artifact;
 import com.google.devtools.build.lib.analysis.TransitiveInfoProvider;
 import com.google.devtools.build.lib.collect.nestedset.NestedSet;
 import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
+import com.google.devtools.build.lib.syntax.SkylarkCallable;
+import com.google.devtools.build.lib.syntax.SkylarkModule;
 
 /**
  * Configured target classes that implement this class can contribute .proto files to the
  * compilation of proto_library rules.
  */
 @Immutable
+@SkylarkModule(name = "ProtoSourcesProvider", doc = "")
 public final class ProtoSourcesProvider implements TransitiveInfoProvider {
-
   private final NestedSet<Artifact> transitiveImports;
   private final NestedSet<Artifact> transitiveProtoSources;
   private final ImmutableList<Artifact> protoSources;
 
-  public ProtoSourcesProvider(NestedSet<Artifact> transitiveImports,
+  public ProtoSourcesProvider(
+      NestedSet<Artifact> transitiveImports,
       NestedSet<Artifact> transitiveProtoSources,
       ImmutableList<Artifact> protoSources) {
     this.transitiveImports = transitiveImports;
@@ -44,6 +47,7 @@ public final class ProtoSourcesProvider implements TransitiveInfoProvider {
    * This determines the order of "-I" arguments to the protocol compiler, and
    * that is probably important
    */
+  @SkylarkCallable(name = "transitive_imports", doc = "", structField = true)
   public NestedSet<Artifact> getTransitiveImports() {
     return transitiveImports;
   }
@@ -52,6 +56,7 @@ public final class ProtoSourcesProvider implements TransitiveInfoProvider {
    * Returns the proto sources for this rule and all its dependent protocol
    * buffer rules.
    */
+  @SkylarkCallable(name = "transitive_proto_sources", doc = "", structField = true)
   public NestedSet<Artifact> getTransitiveProtoSources() {
     return transitiveProtoSources;
   }
@@ -60,6 +65,7 @@ public final class ProtoSourcesProvider implements TransitiveInfoProvider {
    * Returns the proto sources from the 'srcs' attribute. If the library is a proxy library
    * that has no sources, return the sources from the direct deps.
    */
+  @SkylarkCallable(name = "proto_sources", doc = "", structField = true)
   public ImmutableList<Artifact> getProtoSources() {
     return protoSources;
   }