Marc Mintel
5397309103
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45 lines
990 B
Plaintext
45 lines
990 B
Plaintext
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const CHAR_CODE_NEW_LINE = "\n".charCodeAt(0);
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/**
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* @typedef {object} GeneratedSourceInfo
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* @property {number=} generatedLine generated line
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* @property {number=} generatedColumn generated column
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* @property {string=} source source
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*/
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/**
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* @param {string | undefined} source source
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* @returns {GeneratedSourceInfo} source info
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*/
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const getGeneratedSourceInfo = (source) => {
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if (source === undefined) {
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return {};
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}
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const lastLineStart = source.lastIndexOf("\n");
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if (lastLineStart === -1) {
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return {
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generatedLine: 1,
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generatedColumn: source.length,
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source,
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};
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}
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let generatedLine = 2;
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for (let i = 0; i < lastLineStart; i++) {
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if (source.charCodeAt(i) === CHAR_CODE_NEW_LINE) generatedLine++;
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}
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return {
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generatedLine,
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generatedColumn: source.length - lastLineStart - 1,
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source,
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};
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};
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module.exports = getGeneratedSourceInfo;
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