/**
 * Copyright 2018 The AMP HTML 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.
 */
import { ChunkTransform } from '../../transform';
import { TransformInterface } from '../../types';
import MagicString from 'magic-string';
/**
 * Closure Compiler will not transform computed keys with literal values back to the literal value.
 * e.g {[0]: 'value'} => {0: 'value'}
 *
 * This transform does so only if a computed key is a Literal, and thus easily known to be static.
 * @see https://astexplorer.net/#/gist/d2414b45a81db3a41ee6902bfd09947a/d7176ac33a2733e1a4b1f65ec3ac626e24f7b60d
 */
export default class LiteralComputedKeys extends ChunkTransform implements TransformInterface {
    name: string;
    /**
     * @param code source to parse, and modify
     * @return modified input source with computed literal keys
     */
    post(fileName: string, source: MagicString): Promise<MagicString>;
}