react-scripts
Version:
Configuration and scripts for Create React App.
198 lines (159 loc) • 16.8 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 _cssSyntaxError = require('./css-syntax-error');
var _cssSyntaxError2 = _interopRequireDefault(_cssSyntaxError);
var _previousMap = require('./previous-map');
var _previousMap2 = _interopRequireDefault(_previousMap);
var _path = require('path');
var _path2 = _interopRequireDefault(_path);
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"); } }
var sequence = 0;
/**
* @typedef {object} filePosition
* @property {string} file - path to file
* @property {number} line - source line in file
* @property {number} column - source column in file
*/
/**
* Represents the source CSS.
*
* @example
* const root = postcss.parse(css, { from: file });
* const input = root.source.input;
*/
var Input = function () {
/**
* @param {string} css - input CSS source
* @param {object} [opts] - {@link Processor#process} options
*/
function Input(css) {
var opts = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
_classCallCheck(this, Input);
/**
* @member {string} - input CSS source
*
* @example
* const input = postcss.parse('a{}', { from: file }).input;
* input.css //=> "a{}";
*/
this.css = css.toString();
if (this.css[0] === '' || this.css[0] === '') {
this.css = this.css.slice(1);
}
if (opts.from) {
if (/^\w+:\/\//.test(opts.from)) {
/**
* @member {string} - The absolute path to the CSS source file
* defined with the `from` option.
*
* @example
* const root = postcss.parse(css, { from: 'a.css' });
* root.source.input.file //=> '/home/ai/a.css'
*/
this.file = opts.from;
} else {
this.file = _path2.default.resolve(opts.from);
}
}
var map = new _previousMap2.default(this.css, opts);
if (map.text) {
/**
* @member {PreviousMap} - The input source map passed from
* a compilation step before PostCSS
* (for example, from Sass compiler).
*
* @example
* root.source.input.map.consumer().sources //=> ['a.sass']
*/
this.map = map;
var file = map.consumer().file;
if (!this.file && file) this.file = this.mapResolve(file);
}
if (!this.file) {
sequence += 1;
/**
* @member {string} - The unique ID of the CSS source. It will be
* created if `from` option is not provided
* (because PostCSS does not know the file path).
*
* @example
* const root = postcss.parse(css);
* root.source.input.file //=> undefined
* root.source.input.id //=> "<input css 1>"
*/
this.id = '<input css ' + sequence + '>';
}
if (this.map) this.map.file = this.from;
}
Input.prototype.error = function error(message, line, column) {
var opts = arguments.length <= 3 || arguments[3] === undefined ? {} : arguments[3];
var result = void 0;
var origin = this.origin(line, column);
if (origin) {
result = new _cssSyntaxError2.default(message, origin.line, origin.column, origin.source, origin.file, opts.plugin);
} else {
result = new _cssSyntaxError2.default(message, line, column, this.css, this.file, opts.plugin);
}
result.input = { line: line, column: column, source: this.css };
if (this.file) result.input.file = this.file;
return result;
};
/**
* Reads the input source map and returns a symbol position
* in the input source (e.g., in a Sass file that was compiled
* to CSS before being passed to PostCSS).
*
* @param {number} line - line in input CSS
* @param {number} column - column in input CSS
*
* @return {filePosition} position in input source
*
* @example
* root.source.input.origin(1, 1) //=> { file: 'a.css', line: 3, column: 1 }
*/
Input.prototype.origin = function origin(line, column) {
if (!this.map) return false;
var consumer = this.map.consumer();
var from = consumer.originalPositionFor({ line: line, column: column });
if (!from.source) return false;
var result = {
file: this.mapResolve(from.source),
line: from.line,
column: from.column
};
var source = consumer.sourceContentFor(from.source);
if (source) result.source = source;
return result;
};
Input.prototype.mapResolve = function mapResolve(file) {
if (/^\w+:\/\//.test(file)) {
return file;
} else {
return _path2.default.resolve(this.map.consumer().sourceRoot || '.', file);
}
};
/**
* The CSS source identifier. Contains {@link Input#file} if the user
* set the `from` option, or {@link Input#id} if they did not.
* @type {string}
*
* @example
* const root = postcss.parse(css, { from: 'a.css' });
* root.source.input.from //=> "/home/ai/a.css"
*
* const root = postcss.parse(css);
* root.source.input.from //=> "<input css 1>"
*/
_createClass(Input, [{
key: 'from',
get: function get() {
return this.file || this.id;
}
}]);
return Input;
}();
exports.default = Input;
module.exports = exports['default'];
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It will be\n             *                    created if `from` option is not provided\n             *                    (because PostCSS does not know the file path).\n             *\n             * @example\n             * const root = postcss.parse(css);\n             * root.source.input.file //=> undefined\n             * root.source.input.id   //=> \"<input css 1>\"\n             */\n            this.id   = '<input css ' + sequence + '>';\n        }\n        if ( this.map ) this.map.file = this.from;\n    }\n\n    error(message, line, column, opts = { }) {\n        let result;\n        let origin = this.origin(line, column);\n        if ( origin ) {\n            result = new CssSyntaxError(message, origin.line, origin.column,\n                origin.source, origin.file, opts.plugin);\n        } else {\n            result = new CssSyntaxError(message, line, column,\n                this.css, this.file, opts.plugin);\n        }\n\n        result.input = { line, column, source: this.css };\n        if ( this.file ) result.input.file = this.file;\n\n        return result;\n    }\n\n    /**\n     * Reads the input source map and returns a symbol position\n     * in the input source (e.g., in a Sass file that was compiled\n     * to CSS before being passed to PostCSS).\n     *\n     * @param {number} line   - line in input CSS\n     * @param {number} column - column in input CSS\n     *\n     * @return {filePosition} position in input source\n     *\n     * @example\n     * root.source.input.origin(1, 1) //=> { file: 'a.css', line: 3, column: 1 }\n     */\n    origin(line, column) {\n        if ( !this.map ) return false;\n        let consumer = this.map.consumer();\n\n        let from = consumer.originalPositionFor({ line, column });\n        if ( !from.source ) return false;\n\n        let result = {\n            file:   this.mapResolve(from.source),\n            line:   from.line,\n            column: from.column\n        };\n\n        let source = consumer.sourceContentFor(from.source);\n        if ( source ) result.source = source;\n\n        return result;\n    }\n\n    mapResolve(file) {\n        if ( /^\\w+:\\/\\//.test(file) ) {\n            return file;\n        } else {\n            return path.resolve(this.map.consumer().sourceRoot || '.', file);\n        }\n    }\n\n    /**\n     * The CSS source identifier. Contains {@link Input#file} if the user\n     * set the `from` option, or {@link Input#id} if they did not.\n     * @type {string}\n     *\n     * @example\n     * const root = postcss.parse(css, { from: 'a.css' });\n     * root.source.input.from //=> \"/home/ai/a.css\"\n     *\n     * const root = postcss.parse(css);\n     * root.source.input.from //=> \"<input css 1>\"\n     */\n    get from() {\n        return this.file || this.id;\n    }\n\n}\n\nexport default Input;\n"],"sourceRoot":"/source/"}