// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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.devtools.build.lib.syntax;

/**
 *  Generic base class for primitive literals.
 */
public abstract class Literal<T> extends Expression {

  protected final T value;

  protected Literal(T value) {
    this.value = value;
  }

  /**
   *  Returns the value of this literal.
   */
  public T getValue() {
    return value;
  }

  @Override
  public String toString() {
    return value.toString();
  }

  @Override
  Object doEval(Environment env) {
    return value;
  }
}