jellyfin-web/dashboard-ui/bower_components/material-design-lite/utils/uniffe.js
2016-03-09 12:40:22 -05:00

62 lines
1.6 KiB
JavaScript

/**
*
* Material Design Lite
* Copyright 2015 Google Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*
*/
'use strict';
var through = require('through2');
var escodegen = require('escodegen');
var acorn = require('acorn');
function uniffe(contents) {
var comments = [];
var tokens = [];
var ast = acorn.parse(contents, {
ranges: true,
onComment: comments,
onToken: tokens
});
escodegen.attachComments(ast, comments, tokens);
if (ast.body[0].expression === undefined ||
ast.body[0].expression.callee === undefined) {
return contents;
}
var rootProgram = ast.body[0].expression.callee.body;
rootProgram.type = 'Program';
// drop use strict
rootProgram.body = rootProgram.body.slice(1);
// attach all leading comments from outside iffe
rootProgram.leadingComments = ast.body[0].leadingComments;
return escodegen.generate(rootProgram, {comment: true});
}
module.exports = function() {
return through.obj(function(file, enc, cb) {
if (file.isBuffer()) {
file.contents = new Buffer(uniffe(file.contents.toString(enc)), enc);
}
cb(null, file);
});
};