Only allocate some formerly frequently allocated PathFragment objects once.

This reduces both gc churn and retained memory usage.

PiperOrigin-RevId: 154718782

1 files changed, 12 insertions, 1 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 f47b38d006..681c88b45a 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
@@ -1260,7 +1260,18 @@ public final class RuleContext extends TargetContext
    * <p>For example "pkg/dir/name" -> "pkg/&lt;fragment>/rule/dir/name.
    */
   public final PathFragment getUniqueDirectory(String fragment) {
-    return AnalysisUtils.getUniqueDirectory(getLabel(), PathFragment.create(fragment));
+    return getUniqueDirectory(PathFragment.create(fragment));
+  }
+
+  /**
+   * Returns a path fragment qualified by the rule name and unique fragment to
+   * disambiguate artifacts produced from the source file appearing in
+   * multiple rules.
+   *
+   * <p>For example "pkg/dir/name" -> "pkg/&lt;fragment>/rule/dir/name.
+   */
+  public final PathFragment getUniqueDirectory(PathFragment fragment) {
+    return AnalysisUtils.getUniqueDirectory(getLabel(), fragment);
   }
 
   /**