Default and static interface desugaring

RELNOTES: n/a

PiperOrigin-RevId: 153735445

1 files changed, 9 insertions, 1 deletions

diff --git a/src/tools/android/java/com/google/devtools/build/android/desugar/ClassReaderFactory.java b/src/tools/android/java/com/google/devtools/build/android/desugar/ClassReaderFactory.java
index 2b44d7641a..bae5251d0b 100644
--- a/src/tools/android/java/com/google/devtools/build/android/desugar/ClassReaderFactory.java
+++ b/src/tools/android/java/com/google/devtools/build/android/desugar/ClassReaderFactory.java
@@ -28,7 +28,7 @@ class ClassReaderFactory {
   }
 
   /**
-   * Returns a reader for the given/internal/Class$Name if the class is defined in the wrapped Jar
+   * Returns a reader for the given/internal/Class$Name if the class is defined in the wrapped input
    * and {@code null} otherwise.  For simplicity this method turns checked into runtime exceptions
    * under the assumption that all classes have already been read once when this method is called.
    */
@@ -50,4 +50,12 @@ class ClassReaderFactory {
 
     return null;
   }
+
+  /**
+   * Returns {@code true} if the given given/internal/Class$Name is defined in the wrapped input.
+   */
+  public boolean isKnown(String internalClassName) {
+    String filename = rewriter.unprefix(internalClassName) + ".class";
+    return indexedInputs.getInputFileProvider(filename) != null;
+  }
 }