}

    val mark = currentPosition
    advance()

    val hasShebangLine = tokenType == KtTokens.EXCL

    restore(mark)
    return hasShebangLine
}


private
fun KotlinLexer.hasFileAnnotations(): Boolean {

    if (tokenType != KtTokens.AT) {
        return false
    }

    val mark = currentPosition
    advance()

    this.it = checkNotNull(it);
    advance();
  }

  @Override
  public void close() throws IOException {
    if (in != null) {
      try {
        in.close();
      } finally {
        in = null;
      }
    }
  }

  /** Closes the current input stream and opens the next one, if any. */
  private void advance() throws IOException {
    close();
    if (it.hasNext()) {

                return new Iterator<Entry<String, String>>() {
                    Entry<String, String> next;

                    {
                        advance();
                    }

                    private void advance() {
                        next = null;
                        while (iterator.hasNext()) {
                            Entry<Object, Object> e = iterator.next();

  public void testAdvance() {
    FakeTicker ticker = new FakeTicker();
    assertEquals(0, ticker.read());
    assertSame(ticker, ticker.advance(10));
    assertEquals(10, ticker.read());
    ticker.advance(1, TimeUnit.MILLISECONDS);
    assertEquals(1000010L, ticker.read());
    ticker.advance(Duration.ofMillis(1));
    assertEquals(2000010L, ticker.read());
  }

  public void testAutoIncrementStep_returnsSameInstance() {

    if (op->getDialect() != tf_dialect) return WalkResult::advance();

    if (parallel_group_attr) {
      op->setAttr(TF::kParallelExecAnnotation, parallel_group_attr);
    }
    auto device_attr = op->getAttr(kDeviceAttr);
    if (!device_attr) {
      op->setAttr(kDeviceAttr, launch.getDeviceAttr());
      return WalkResult::advance();
    }

                    }
                    advance()
                }

                SEMICOLON -> {
                    advance()
                    seenSeparator = true
                }

                in COMMENTS -> {
                    if (ignoresComments) {
                        advance()
                    } else {
                        break

    private long sync(long syncMillis) {
        long newSyncMillis = advance(timeSource.currentTimeMillis());
        syncMillisRef.compareAndSet(syncMillis, newSyncMillis);
        return newSyncMillis;
    }

    /**
     * Advance the clock to the given timestamp and return the new time.
     * The returned time may not be the one passed in, in case another thread already advanced the clock further.

          return WalkResult::interrupt();
        }
        stack.push_back(called_func);
      }

      return WalkResult::advance();
    });
    if (result.wasInterrupted()) {
      return result;
    }
  }

  return WalkResult::advance();
}

FailureOr<OwningOpRef<ModuleOp>> CreatePrunedModule(
    ModuleOp module, llvm::ArrayRef<llvm::StringRef> function_names) {

	1<<_Switch |
	1<<_Type |
	1<<_Var

// advance consumes tokens until it finds a token of the stopset or followlist.
// The stopset is only considered if we are inside a function (p.fnest > 0).
// The followlist is the list of valid tokens that can follow a production;
// if it is empty, exactly one (non-EOF) token is consumed to ensure progress.
func (p *parser) advance(followlist ...token) {
	if trace {

        return WalkResult::advance();
      for (Operation* pred : IslandPredecessors(split)) {
        if (auto colocation_classes =
                pred->getAttrOfType<ArrayAttr>(kClassAttr)) {
          split->setAttr(kClassAttr, colocation_classes);
          return WalkResult::advance();
        }
      }
    }
    return WalkResult::advance();
  });
}

}  // namespace