source: trip-planner-front/node_modules/stylus/lib/functions/use.js@ eed0bf8

Last change on this file since eed0bf8 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.6 KB
Line 
1var utils = require('../utils')
2 , path = require('path');
3
4/**
5* Use the given `plugin`
6*
7* Examples:
8*
9* use("plugins/add.js")
10*
11* width add(10, 100)
12* // => width: 110
13*/
14
15function use(plugin, options){
16 utils.assertString(plugin, 'plugin');
17
18 if (options) {
19 utils.assertType(options, 'object', 'options');
20 options = parseObject(options);
21 }
22
23 // lookup
24 plugin = plugin.string;
25 var found = utils.lookup(plugin, this.options.paths, this.options.filename);
26 if (!found) throw new Error('failed to locate plugin file "' + plugin + '"');
27
28 // use
29 var fn = require(path.resolve(found));
30 if ('function' != typeof fn) {
31 throw new Error('plugin "' + plugin + '" does not export a function');
32 }
33 this.renderer.use(fn(options || this.options));
34}
35use.params = ['plugin', 'options'];
36module.exports = use;
37
38/**
39 * Attempt to parse object node to the javascript object.
40 *
41 * @param {Object} obj
42 * @return {Object}
43 * @api private
44 */
45
46function parseObject(obj){
47 obj = obj.vals;
48 for (var key in obj) {
49 var nodes = obj[key].nodes[0].nodes;
50 if (nodes && nodes.length) {
51 obj[key] = [];
52 for (var i = 0, len = nodes.length; i < len; ++i) {
53 obj[key].push(convert(nodes[i]));
54 }
55 } else {
56 obj[key] = convert(obj[key].first);
57 }
58 }
59 return obj;
60
61 function convert(node){
62 switch (node.nodeName) {
63 case 'object':
64 return parseObject(node);
65 case 'boolean':
66 return node.isTrue;
67 case 'unit':
68 return node.type ? node.toString() : +node.val;
69 case 'string':
70 case 'literal':
71 return node.val;
72 default:
73 return node.toString();
74 }
75 }
76}
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