d2-ui
Version:
68 lines (60 loc) • 2.15 kB
JavaScript
/**
* Copyright 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/*global exports:true*/
var Syntax = require('esprima-fb').Syntax;
var utils = require('../src/utils');
var reserverdWordsHelper = require('./reserved-words-helper');
/**
* Code adapted from https://github.com/spicyj/es3ify
* The MIT License (MIT)
* Copyright (c) 2014 Ben Alpert
*/
function visitProperty(traverse, node, path, state) {
utils.catchup(node.key.range[0], state);
utils.append('"', state);
utils.catchup(node.key.range[1], state);
utils.append('"', state);
utils.catchup(node.value.range[0], state);
traverse(node.value, path, state);
return false;
}
visitProperty.test = function(node) {
return node.type === Syntax.Property &&
node.key.type === Syntax.Identifier &&
!node.method &&
!node.shorthand &&
!node.computed &&
reserverdWordsHelper.isES3ReservedWord(node.key.name);
};
function visitMemberExpression(traverse, node, path, state) {
traverse(node.object, path, state);
// Member expression range does not include parenthesis, so simply specifying
// node.object.range[1] as the start position doesn't work. Neither does
// node.property.range[0] - 1 as that won't catch expressions that span
// newlines (period on previous line). So instead we'll catchup and remove
// any periods.
utils.catchup(node.property.range[0], state, function(s) {
return s.replace('.', '');
});
utils.append('[', state);
utils.catchupWhiteSpace(node.property.range[0], state);
utils.append('"', state);
utils.catchup(node.property.range[1], state);
utils.append('"]', state);
return false;
}
visitMemberExpression.test = function(node) {
return node.type === Syntax.MemberExpression &&
node.property.type === Syntax.Identifier &&
reserverdWordsHelper.isES3ReservedWord(node.property.name);
};
exports.visitorList = [
visitProperty,
visitMemberExpression
];