// 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.util;
/**
* This class serves as a base implementation for a {@code CharSequence}
* that delay string construction (mostly till the execution phase).
*
* They are not full implementations, they lack {@code #charAt(int)} and
* {@code #subSequence(int, int)}.
*/
public abstract class LazyString implements CharSequence {
@Override
public char charAt(int index) {
throw new UnsupportedOperationException();
}
@Override
public int length() {
return toString().length();
}
@Override
public CharSequence subSequence(int start, int end) {
throw new UnsupportedOperationException();
}
}