code-server-2/extensions/html-language-features/server/build/javaScriptLibraryLoader.js

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