react-scripts
Version:
Configuration and scripts for Create React App.
254 lines (220 loc) • 23 kB
JavaScript
'use strict';
exports.__esModule = true;
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _supportsColor = require('supports-color');
var _supportsColor2 = _interopRequireDefault(_supportsColor);
var _terminalHighlight = require('./terminal-highlight');
var _terminalHighlight2 = _interopRequireDefault(_terminalHighlight);
var _warnOnce = require('./warn-once');
var _warnOnce2 = _interopRequireDefault(_warnOnce);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
/**
* The CSS parser throws this error for broken CSS.
*
* Custom parsers can throw this error for broken custom syntax using
* the {@link Node#error} method.
*
* PostCSS will use the input source map to detect the original error location.
* If you wrote a Sass file, compiled it to CSS and then parsed it with PostCSS,
* PostCSS will show the original position in the Sass file.
*
* If you need the position in the PostCSS input
* (e.g., to debug the previous compiler), use `error.input.file`.
*
* @example
* // Catching and checking syntax error
* try {
* postcss.parse('a{')
* } catch (error) {
* if ( error.name === 'CssSyntaxError' ) {
* error //=> CssSyntaxError
* }
* }
*
* @example
* // Raising error from plugin
* throw node.error('Unknown variable', { plugin: 'postcss-vars' });
*/
var CssSyntaxError = function () {
/**
* @param {string} message - error message
* @param {number} [line] - source line of the error
* @param {number} [column] - source column of the error
* @param {string} [source] - source code of the broken file
* @param {string} [file] - absolute path to the broken file
* @param {string} [plugin] - PostCSS plugin name, if error came from plugin
*/
function CssSyntaxError(message, line, column, source, file, plugin) {
_classCallCheck(this, CssSyntaxError);
/**
* @member {string} - Always equal to `'CssSyntaxError'`. You should
* always check error type
* by `error.name === 'CssSyntaxError'` instead of
* `error instanceof CssSyntaxError`, because
* npm could have several PostCSS versions.
*
* @example
* if ( error.name === 'CssSyntaxError' ) {
* error //=> CssSyntaxError
* }
*/
this.name = 'CssSyntaxError';
/**
* @member {string} - Error message.
*
* @example
* error.message //=> 'Unclosed block'
*/
this.reason = message;
if (file) {
/**
* @member {string} - Absolute path to the broken file.
*
* @example
* error.file //=> 'a.sass'
* error.input.file //=> 'a.css'
*/
this.file = file;
}
if (source) {
/**
* @member {string} - Source code of the broken file.
*
* @example
* error.source //=> 'a { b {} }'
* error.input.column //=> 'a b { }'
*/
this.source = source;
}
if (plugin) {
/**
* @member {string} - Plugin name, if error came from plugin.
*
* @example
* error.plugin //=> 'postcss-vars'
*/
this.plugin = plugin;
}
if (typeof line !== 'undefined' && typeof column !== 'undefined') {
/**
* @member {number} - Source line of the error.
*
* @example
* error.line //=> 2
* error.input.line //=> 4
*/
this.line = line;
/**
* @member {number} - Source column of the error.
*
* @example
* error.column //=> 1
* error.input.column //=> 4
*/
this.column = column;
}
this.setMessage();
if (Error.captureStackTrace) {
Error.captureStackTrace(this, CssSyntaxError);
}
}
CssSyntaxError.prototype.setMessage = function setMessage() {
/**
* @member {string} - Full error text in the GNU error format
* with plugin, file, line and column.
*
* @example
* error.message //=> 'a.css:1:1: Unclosed block'
*/
this.message = this.plugin ? this.plugin + ': ' : '';
this.message += this.file ? this.file : '<css input>';
if (typeof this.line !== 'undefined') {
this.message += ':' + this.line + ':' + this.column;
}
this.message += ': ' + this.reason;
};
/**
* Returns a few lines of CSS source that caused the error.
*
* If the CSS has an input source map without `sourceContent`,
* this method will return an empty string.
*
* @param {boolean} [color] whether arrow will be colored red by terminal
* color codes. By default, PostCSS will detect
* color support by `process.stdout.isTTY`
* and `process.env.NODE_DISABLE_COLORS`.
*
* @example
* error.showSourceCode() //=> " 4 | }
* // 5 | a {
* // > 6 | bad
* // | ^
* // 7 | }
* // 8 b {"
*
* @return {string} few lines of CSS source that caused the error
*/
CssSyntaxError.prototype.showSourceCode = function showSourceCode(color) {
var _this = this;
if (!this.source) return '';
var css = this.source;
if (typeof color === 'undefined') color = _supportsColor2.default;
if (color) css = (0, _terminalHighlight2.default)(css);
var lines = css.split(/\r?\n/);
var start = Math.max(this.line - 3, 0);
var end = Math.min(this.line + 2, lines.length);
var maxWidth = String(end).length;
return lines.slice(start, end).map(function (line, index) {
var number = start + 1 + index;
var padded = (' ' + number).slice(-maxWidth);
var gutter = ' ' + padded + ' | ';
if (number === _this.line) {
var spacing = gutter.replace(/\d/g, ' ') + line.slice(0, _this.column - 1).replace(/[^\t]/g, ' ');
return '>' + gutter + line + '\n ' + spacing + '^';
} else {
return ' ' + gutter + line;
}
}).join('\n');
};
/**
* Returns error position, message and source code of the broken part.
*
* @example
* error.toString() //=> "CssSyntaxError: app.css:1:1: Unclosed block
* // > 1 | a {
* // | ^"
*
* @return {string} error position, message and source code
*/
CssSyntaxError.prototype.toString = function toString() {
var code = this.showSourceCode();
if (code) {
code = '\n\n' + code + '\n';
}
return this.name + ': ' + this.message + code;
};
_createClass(CssSyntaxError, [{
key: 'generated',
get: function get() {
(0, _warnOnce2.default)('CssSyntaxError#generated is depreacted. Use input instead.');
return this.input;
}
/**
* @memberof CssSyntaxError#
* @member {Input} input - Input object with PostCSS internal information
* about input file. If input has source map
* from previous tool, PostCSS will use origin
* (for example, Sass) source. You can use this
* object to get PostCSS input source.
*
* @example
* error.input.file //=> 'a.css'
* error.file //=> 'a.sass'
*/
}]);
return CssSyntaxError;
}();
exports.default = CssSyntaxError;
module.exports = exports['default'];
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You should\n         *                    always check error type\n         *                    by `error.name === 'CssSyntaxError'` instead of\n         *                    `error instanceof CssSyntaxError`, because\n         *                    npm could have several PostCSS versions.\n         *\n         * @example\n         * if ( error.name === 'CssSyntaxError' ) {\n         *   error //=> CssSyntaxError\n         * }\n         */\n        this.name   = 'CssSyntaxError';\n        /**\n         * @member {string} - Error message.\n         *\n         * @example\n         * error.message //=> 'Unclosed block'\n         */\n        this.reason = message;\n\n        if ( file ) {\n            /**\n             * @member {string} - Absolute path to the broken file.\n             *\n             * @example\n             * error.file       //=> 'a.sass'\n             * error.input.file //=> 'a.css'\n             */\n            this.file = file;\n        }\n        if ( source ) {\n            /**\n             * @member {string} - Source code of the broken file.\n             *\n             * @example\n             * error.source       //=> 'a { b {} }'\n             * error.input.column //=> 'a b { }'\n             */\n            this.source = source;\n        }\n        if ( plugin ) {\n            /**\n             * @member {string} - Plugin name, if error came from plugin.\n             *\n             * @example\n             * error.plugin //=> 'postcss-vars'\n             */\n            this.plugin = plugin;\n        }\n        if ( typeof line !== 'undefined' && typeof column !== 'undefined' ) {\n            /**\n             * @member {number} - Source line of the error.\n             *\n             * @example\n             * error.line       //=> 2\n             * error.input.line //=> 4\n             */\n            this.line   = line;\n            /**\n             * @member {number} - Source column of the error.\n             *\n             * @example\n             * error.column       //=> 1\n             * error.input.column //=> 4\n             */\n            this.column = column;\n        }\n\n        this.setMessage();\n\n        if ( Error.captureStackTrace ) {\n            Error.captureStackTrace(this, CssSyntaxError);\n        }\n    }\n\n    setMessage() {\n        /**\n         * @member {string} - Full error text in the GNU error format\n         *                    with plugin, file, line and column.\n         *\n         * @example\n         * error.message //=> 'a.css:1:1: Unclosed block'\n         */\n        this.message  = this.plugin ? this.plugin + ': ' : '';\n        this.message += this.file ? this.file : '<css input>';\n        if ( typeof this.line !== 'undefined' ) {\n            this.message += ':' + this.line + ':' + this.column;\n        }\n        this.message += ': ' + this.reason;\n    }\n\n    /**\n     * Returns a few lines of CSS source that caused the error.\n     *\n     * If the CSS has an input source map without `sourceContent`,\n     * this method will return an empty string.\n     *\n     * @param {boolean} [color] whether arrow will be colored red by terminal\n     *                          color codes. By default, PostCSS will detect\n     *                          color support by `process.stdout.isTTY`\n     *                          and `process.env.NODE_DISABLE_COLORS`.\n     *\n     * @example\n     * error.showSourceCode() //=> \"  4 | }\n     *                        //      5 | a {\n     *                        //    > 6 |   bad\n     *                        //        |   ^\n     *                        //      7 | }\n     *                        //      8 b {\"\n     *\n     * @return {string} few lines of CSS source that caused the error\n     */\n    showSourceCode(color) {\n        if ( !this.source ) return '';\n\n        let css = this.source;\n        if ( typeof color === 'undefined' ) color = supportsColor;\n        if ( color ) css = terminalHighlight(css);\n\n        let lines = css.split(/\\r?\\n/);\n        let start = Math.max(this.line - 3, 0);\n        let end   = Math.min(this.line + 2, lines.length);\n\n        let maxWidth = String(end).length;\n\n        return lines.slice(start, end).map( (line, index) => {\n            let number = start + 1 + index;\n            let padded = (' ' + number).slice(-maxWidth);\n            let gutter = ' ' + padded + ' | ';\n            if ( number === this.line ) {\n                let spacing =\n                    gutter.replace(/\\d/g, ' ') +\n                    line.slice(0, this.column - 1).replace(/[^\\t]/g, ' ');\n                return '>' + gutter + line + '\\n ' + spacing + '^';\n            } else {\n                return ' ' + gutter + line;\n            }\n        }).join('\\n');\n    }\n\n    /**\n     * Returns error position, message and source code of the broken part.\n     *\n     * @example\n     * error.toString() //=> \"CssSyntaxError: app.css:1:1: Unclosed block\n     *                  //    > 1 | a {\n     *                  //        | ^\"\n     *\n     * @return {string} error position, message and source code\n     */\n    toString() {\n        let code = this.showSourceCode();\n        if ( code ) {\n            code = '\\n\\n' + code + '\\n';\n        }\n        return this.name + ': ' + this.message + code;\n    }\n\n    get generated() {\n        warnOnce('CssSyntaxError#generated is depreacted. Use input instead.');\n        return this.input;\n    }\n\n    /**\n     * @memberof CssSyntaxError#\n     * @member {Input} input - Input object with PostCSS internal information\n     *                         about input file. If input has source map\n     *                         from previous tool, PostCSS will use origin\n     *                         (for example, Sass) source. You can use this\n     *                         object to get PostCSS input source.\n     *\n     * @example\n     * error.input.file //=> 'a.css'\n     * error.file       //=> 'a.sass'\n     */\n\n}\n\nexport default CssSyntaxError;\n"],"sourceRoot":"/source/"}