source: imaps-frontend/node_modules/webpack-sources/lib/CompatSource.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/
"use strict";

const Source = require("./Source");

class CompatSource extends Source {
        static from(sourceLike) {
                return sourceLike instanceof Source
                        ? sourceLike
                        : new CompatSource(sourceLike);
        }

        constructor(sourceLike) {
                super();
                this._sourceLike = sourceLike;
        }

        source() {
                return this._sourceLike.source();
        }

        buffer() {
                if (typeof this._sourceLike.buffer === "function") {
                        return this._sourceLike.buffer();
                }
                return super.buffer();
        }

        size() {
                if (typeof this._sourceLike.size === "function") {
                        return this._sourceLike.size();
                }
                return super.size();
        }

        map(options) {
                if (typeof this._sourceLike.map === "function") {
                        return this._sourceLike.map(options);
                }
                return super.map(options);
        }

        sourceAndMap(options) {
                if (typeof this._sourceLike.sourceAndMap === "function") {
                        return this._sourceLike.sourceAndMap(options);
                }
                return super.sourceAndMap(options);
        }

        updateHash(hash) {
                if (typeof this._sourceLike.updateHash === "function") {
                        return this._sourceLike.updateHash(hash);
                }
                if (typeof this._sourceLike.map === "function") {
                        throw new Error(
                                "A Source-like object with a 'map' method must also provide an 'updateHash' method"
                        );
                }
                hash.update(this.buffer());
        }
}

module.exports = CompatSource;