Mario Romano 29df96a085 react app
2016-04-06 17:52:19 +01:00

75 lines
2.1 KiB
JavaScript

/**
* Copyright 2014 Facebook, Inc.
*
* 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
*
* http://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.
*/
var KEYWORDS = [
'break', 'do', 'in', 'typeof', 'case', 'else', 'instanceof', 'var', 'catch',
'export', 'new', 'void', 'class', 'extends', 'return', 'while', 'const',
'finally', 'super', 'with', 'continue', 'for', 'switch', 'yield', 'debugger',
'function', 'this', 'default', 'if', 'throw', 'delete', 'import', 'try'
];
var FUTURE_RESERVED_WORDS = [
'enum', 'await', 'implements', 'package', 'protected', 'static', 'interface',
'private', 'public'
];
var LITERALS = [
'null',
'true',
'false'
];
// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-reserved-words
var RESERVED_WORDS = [].concat(
KEYWORDS,
FUTURE_RESERVED_WORDS,
LITERALS
);
var reservedWordsMap = Object.create(null);
RESERVED_WORDS.forEach(function(k) {
reservedWordsMap[k] = true;
});
/**
* This list should not grow as new reserved words are introdued. This list is
* of words that need to be quoted because ES3-ish browsers do not allow their
* use as identifier names.
*/
var ES3_FUTURE_RESERVED_WORDS = [
'enum', 'implements', 'package', 'protected', 'static', 'interface',
'private', 'public'
];
var ES3_RESERVED_WORDS = [].concat(
KEYWORDS,
ES3_FUTURE_RESERVED_WORDS,
LITERALS
);
var es3ReservedWordsMap = Object.create(null);
ES3_RESERVED_WORDS.forEach(function(k) {
es3ReservedWordsMap[k] = true;
});
exports.isReservedWord = function(word) {
return !!reservedWordsMap[word];
};
exports.isES3ReservedWord = function(word) {
return !!es3ReservedWordsMap[word];
};