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- "use strict";
- Object.defineProperty(exports, "__esModule", { value: true });
- var tslib_1 = require("tslib");
- var utils = tslib_1.__importStar(require("./utils"));
- var anonymousFunc = /(<anonymous>|Function):(\d+):(\d+)/;
- /**
- * This is a centralized class of any error that could be thrown internally (mostly by the parser).
- * Besides standard .message it keeps some additional data like a path to the file where the error
- * occurred along with line and column numbers.
- *
- * @class
- * @extends Error
- * @type {module.LessError}
- *
- * @prop {string} type
- * @prop {string} filename
- * @prop {number} index
- * @prop {number} line
- * @prop {number} column
- * @prop {number} callLine
- * @prop {number} callExtract
- * @prop {string[]} extract
- *
- * @param {Object} e - An error object to wrap around or just a descriptive object
- * @param {Object} fileContentMap - An object with file contents in 'contents' property (like importManager) @todo - move to fileManager?
- * @param {string} [currentFilename]
- */
- var LessError = function (e, fileContentMap, currentFilename) {
- Error.call(this);
- var filename = e.filename || currentFilename;
- this.message = e.message;
- this.stack = e.stack;
- if (fileContentMap && filename) {
- var input = fileContentMap.contents[filename];
- var loc = utils.getLocation(e.index, input);
- var line = loc.line;
- var col = loc.column;
- var callLine = e.call && utils.getLocation(e.call, input).line;
- var lines = input ? input.split('\n') : '';
- this.type = e.type || 'Syntax';
- this.filename = filename;
- this.index = e.index;
- this.line = typeof line === 'number' ? line + 1 : null;
- this.column = col;
- if (!this.line && this.stack) {
- var found = this.stack.match(anonymousFunc);
- /**
- * We have to figure out how this environment stringifies anonymous functions
- * so we can correctly map plugin errors.
- *
- * Note, in Node 8, the output of anonymous funcs varied based on parameters
- * being present or not, so we inject dummy params.
- */
- var func = new Function('a', 'throw new Error()');
- var lineAdjust = 0;
- try {
- func();
- }
- catch (e) {
- var match = e.stack.match(anonymousFunc);
- lineAdjust = 1 - parseInt(match[2]);
- }
- if (found) {
- if (found[2]) {
- this.line = parseInt(found[2]) + lineAdjust;
- }
- if (found[3]) {
- this.column = parseInt(found[3]);
- }
- }
- }
- this.callLine = callLine + 1;
- this.callExtract = lines[callLine];
- this.extract = [
- lines[this.line - 2],
- lines[this.line - 1],
- lines[this.line]
- ];
- }
- };
- if (typeof Object.create === 'undefined') {
- var F = function () { };
- F.prototype = Error.prototype;
- LessError.prototype = new F();
- }
- else {
- LessError.prototype = Object.create(Error.prototype);
- }
- LessError.prototype.constructor = LessError;
- /**
- * An overridden version of the default Object.prototype.toString
- * which uses additional information to create a helpful message.
- *
- * @param {Object} options
- * @returns {string}
- */
- LessError.prototype.toString = function (options) {
- options = options || {};
- var message = '';
- var extract = this.extract || [];
- var error = [];
- var stylize = function (str) { return str; };
- if (options.stylize) {
- var type = typeof options.stylize;
- if (type !== 'function') {
- throw Error("options.stylize should be a function, got a ".concat(type, "!"));
- }
- stylize = options.stylize;
- }
- if (this.line !== null) {
- if (typeof extract[0] === 'string') {
- error.push(stylize("".concat(this.line - 1, " ").concat(extract[0]), 'grey'));
- }
- if (typeof extract[1] === 'string') {
- var errorTxt = "".concat(this.line, " ");
- if (extract[1]) {
- errorTxt += extract[1].slice(0, this.column) +
- stylize(stylize(stylize(extract[1].substr(this.column, 1), 'bold') +
- extract[1].slice(this.column + 1), 'red'), 'inverse');
- }
- error.push(errorTxt);
- }
- if (typeof extract[2] === 'string') {
- error.push(stylize("".concat(this.line + 1, " ").concat(extract[2]), 'grey'));
- }
- error = "".concat(error.join('\n') + stylize('', 'reset'), "\n");
- }
- message += stylize("".concat(this.type, "Error: ").concat(this.message), 'red');
- if (this.filename) {
- message += stylize(' in ', 'red') + this.filename;
- }
- if (this.line) {
- message += stylize(" on line ".concat(this.line, ", column ").concat(this.column + 1, ":"), 'grey');
- }
- message += "\n".concat(error);
- if (this.callLine) {
- message += "".concat(stylize('from ', 'red') + (this.filename || ''), "/n");
- message += "".concat(stylize(this.callLine, 'grey'), " ").concat(this.callExtract, "/n");
- }
- return message;
- };
- exports.default = LessError;
- //# sourceMappingURL=less-error.js.map
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