public void debugDump() {
    for (int index = 0; index < blockStarts.length; index++) {
      if (blockStarts[index] == null) {
        continue;
      }

      if (blockStarts[index] == emptySet) {
        System.out.printf("%04x: empty set\n", index);
      } else {
        System.out.printf("%04x: %s\n", index, blockStarts[index]);
      }
    }
  }
Gets the number of assignments recorded by this instance.

@return {@code >= 0;} the number of assignments
android/android_framework/dex-maker/src/main/java/com/android/dx/ssa/LocalVariableInfo.java