Enables the propagation of the XcodeVersionProperties provider for reading from Skylark.

--
PiperOrigin-RevId: 141912220
MOS_MIGRATED_REVID=141912220

1 files changed, 12 insertions, 0 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java b/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
index 879a1bbe18..202be7b633 100644
--- a/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
+++ b/src/main/java/com/google/devtools/build/lib/analysis/RuleContext.java
@@ -849,6 +849,18 @@ public final class RuleContext extends TargetContext
   }
 
   /**
+   * Returns the declared provider (native and Skylark) for the specified constructor under the
+   * specified attribute of this target in the BUILD file. May return null if there is no
+   * TransitiveInfoCollection under the specified attribute.
+   */
+  @Nullable
+  public SkylarkClassObject getPrerequisite(
+      String attributeName, Mode mode, final SkylarkClassObjectConstructor.Key skylarkKey) {
+    TransitiveInfoCollection prerequisite = getPrerequisite(attributeName, mode);
+    return prerequisite == null ? null : prerequisite.get(skylarkKey);
+  }
+
+  /**
    * Returns all the providers of the specified type that are listed under the specified attribute
    * of this target in the BUILD file, and that contain the specified provider.
    */