@polymer/gen-typescript-declarations/lib/ts-ast/formatting.js

Generate TypeScript type declarations for Polymer components.

"use strict";
/**
 * @license
 * Copyright (c) 2017 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at
 * http://polymer.github.io/LICENSE.txt The complete set of authors may be found
 * at http://polymer.github.io/AUTHORS.txt The complete set of contributors may
 * be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by
 * Google as part of the polymer project is also subject to an additional IP
 * rights grant found at http://polymer.github.io/PATENTS.txt
 */
Object.defineProperty(exports, "__esModule", { value: true });
function quotePropertyName(name) {
    // TODO We should escape reserved words, and there are many more safe
    // characters than are included in this RegExp.
    // See https://mathiasbynens.be/notes/javascript-identifiers-es6
    const safe = name.match(/^[_$a-zA-Z][_$a-zA-Z0-9]*$/);
    return safe ? name : JSON.stringify(name);
}
exports.quotePropertyName = quotePropertyName;
const indentSpaces = 2;
function indent(depth) {
    return ' '.repeat(depth * indentSpaces);
}
exports.indent = indent;
function formatComment(comment, depth) {
    // Make sure we don't end our comment early by printing out the `*/` end
    // comment sequence if it is contained in the comment. Escape it as `*\/`
    // instead. One way this sequence could get here is if an HTML comment
    // embedded a JavaScript style block comment.
    comment = comment.replace(/\*\//g, '*\\/');
    // Indent the comment one space so that it doesn't touch the `*` we add next,
    // but only if there is a character there. If we also indented blank lines by
    // one space, then they would have an unneccessary space after the `*`.
    comment = comment.replace(/^(.)/gm, ' $1');
    // Indent to the given level and add the `*` character.
    const i = indent(depth);
    comment = comment.replace(/^/gm, `${i} *`);
    return `${i}/**\n${comment}\n${i} */\n`;
}
exports.formatComment = formatComment;
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