71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
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/**
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* Copyright 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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/*jslint node:true*/
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/**
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* Desugars concise methods of objects to function expressions.
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*
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* var foo = {
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* method(x, y) { ... }
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* };
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*
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* var foo = {
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* method: function(x, y) { ... }
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* };
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*
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*/
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var Syntax = require('esprima-fb').Syntax;
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var utils = require('../src/utils');
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var reservedWordsHelper = require('./reserved-words-helper');
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function visitObjectConciseMethod(traverse, node, path, state) {
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var isGenerator = node.value.generator;
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if (isGenerator) {
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utils.catchupWhiteSpace(node.range[0] + 1, state);
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}
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if (reservedWordsHelper.isReservedWord(node.key.name)) {
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utils.catchup(node.key.range[0], state);
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utils.append('"', state);
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utils.catchup(node.key.range[1], state);
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utils.append('"', state);
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}
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utils.catchup(node.key.range[1], state);
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utils.append(':', state);
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renderConciseMethod(traverse, node, path, state);
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return false;
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}
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// This method is also used by es6-object-computed-property-visitor to render
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// the method for concise computed properties.
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function renderConciseMethod(traverse, property, path, state) {
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if (property.computed) {
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var closingSquareBracketIndex = state.g.source.indexOf(']', property.key.range[1]);
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utils.catchup(closingSquareBracketIndex, state);
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utils.move(closingSquareBracketIndex + 1, state);
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}
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utils.append("function" + (property.value.generator ? "*" : ""), state);
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path.unshift(property);
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traverse(property.value, path, state);
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path.shift();
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}
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visitObjectConciseMethod.test = function(node, path, state) {
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return node.type === Syntax.Property &&
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node.value.type === Syntax.FunctionExpression &&
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node.method === true;
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};
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exports.renderConciseMethod = renderConciseMethod;
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exports.visitorList = [
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visitObjectConciseMethod
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];
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