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add library loader
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/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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// a webpack loader that bundles all library definitions (d.ts) for the embedded JavaScript engine.
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const path = require('path');
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const fs = require('fs');
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const TYPESCRIPT_LIB_SOURCE = path.join(__dirname, '../../../node_modules/typescript/lib');
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const JQUERY_DTS = path.join(__dirname, '../lib/jquery.d.ts');
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module.exports = function () {
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function getFileName(name) {
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return (name === '' ? 'lib.d.ts' : `lib.${name}.d.ts`);
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}
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function readLibFile(name) {
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var srcPath = path.join(TYPESCRIPT_LIB_SOURCE, getFileName(name));
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return fs.readFileSync(srcPath).toString();
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}
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var queue = [];
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var in_queue = {};
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var enqueue = function (name) {
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if (in_queue[name]) {
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return;
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}
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in_queue[name] = true;
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queue.push(name);
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};
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enqueue('es6');
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var result = [];
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while (queue.length > 0) {
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var name = queue.shift();
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var contents = readLibFile(name);
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var lines = contents.split(/\r\n|\r|\n/);
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var outputLines = [];
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for (let i = 0; i < lines.length; i++) {
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let m = lines[i].match(/\/\/\/\s*<reference\s*lib="([^"]+)"/);
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if (m) {
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enqueue(m[1]);
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}
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outputLines.push(lines[i]);
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}
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result.push({
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name: getFileName(name),
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output: `"${escapeText(outputLines.join('\n'))}"`
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});
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}
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const jquerySource = fs.readFileSync(JQUERY_DTS).toString();
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var lines = jquerySource.split(/\r\n|\r|\n/);
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result.push({
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name: 'jquery',
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output: `"${escapeText(lines.join('\n'))}"`
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});
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strResult = `\nconst libs : { [name:string]: string; } = {\n`
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for (let i = result.length - 1; i >= 0; i--) {
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strResult += `"${result[i].name}": ${result[i].output},\n`;
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}
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strResult += `\n};`
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strResult += `export function loadLibrary(name: string) : string {\n return libs[name] || ''; \n}`;
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return strResult;
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}
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/**
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* Escape text such that it can be used in a javascript string enclosed by double quotes (")
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*/
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function escapeText(text) {
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// See http://www.javascriptkit.com/jsref/escapesequence.shtml
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var _backspace = '\b'.charCodeAt(0);
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var _formFeed = '\f'.charCodeAt(0);
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var _newLine = '\n'.charCodeAt(0);
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var _nullChar = 0;
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var _carriageReturn = '\r'.charCodeAt(0);
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var _tab = '\t'.charCodeAt(0);
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var _verticalTab = '\v'.charCodeAt(0);
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var _backslash = '\\'.charCodeAt(0);
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var _doubleQuote = '"'.charCodeAt(0);
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var startPos = 0, chrCode, replaceWith = null, resultPieces = [];
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for (var i = 0, len = text.length; i < len; i++) {
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chrCode = text.charCodeAt(i);
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switch (chrCode) {
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case _backspace:
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replaceWith = '\\b';
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break;
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case _formFeed:
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replaceWith = '\\f';
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break;
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case _newLine:
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replaceWith = '\\n';
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break;
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case _nullChar:
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replaceWith = '\\0';
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break;
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case _carriageReturn:
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replaceWith = '\\r';
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break;
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case _tab:
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replaceWith = '\\t';
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break;
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case _verticalTab:
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replaceWith = '\\v';
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break;
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case _backslash:
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replaceWith = '\\\\';
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break;
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case _doubleQuote:
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replaceWith = '\\"';
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break;
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}
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if (replaceWith !== null) {
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resultPieces.push(text.substring(startPos, i));
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resultPieces.push(replaceWith);
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startPos = i + 1;
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replaceWith = null;
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}
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}
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resultPieces.push(text.substring(startPos, len));
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return resultPieces.join('');
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}
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