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

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

"use strict";

const CHAR_CODE_NEW_LINE = "\n".charCodeAt(0);

const getGeneratedSourceInfo = source => {
        if (source === undefined) {
                return {};
        }
        const lastLineStart = source.lastIndexOf("\n");
        if (lastLineStart === -1) {
                return {
                        generatedLine: 1,
                        generatedColumn: source.length,
                        source
                };
        }
        let generatedLine = 2;
        for (let i = 0; i < lastLineStart; i++) {
                if (source.charCodeAt(i) === CHAR_CODE_NEW_LINE) generatedLine++;
        }
        return {
                generatedLine,
                generatedColumn: source.length - lastLineStart - 1,
                source
        };
};

module.exports = getGeneratedSourceInfo;