// Copyright 2017 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.bamboo.soy.stubs;

import com.intellij.psi.stubs.StubElement;

public abstract class StubUtils {
  public static FileStub getContainingStubFile(StubElement e) {
    StubElement parent = e.getParentStub();
    while (parent != null) {
      if (parent instanceof FileStub) {
        return (FileStub) parent;
      }
      parent = parent.getParentStub();
    }
    return null;
  }
}