docs：更新文档

node_modules/rollup-plugin-web-worker-loader/src/utils/buildWorkerCode.js

@@ -0,0 +1,42 @@
+const kDefaultsOptions = {
+    inline: true,
+    preserveSource: false,
+    enableUnicode: false,
+    targetPlatform: 'browser',
+};
+
+function getFactoryFuncName(options) {
+    if (options.inline) {
+        if (options.preserveSource) {
+            return 'createInlineWorkerFactory';
+        }
+        return 'createBase64WorkerFactory';
+    }
+    return 'createURLWorkerFactory';
+}
+
+function getArgsString(source, sourcemap, options) {
+    if (options.inline) {
+        const sourcemapArg = sourcemap ? `'${sourcemap.toUrl()}'` : 'null';
+        if (options.preserveSource) {
+            return `${source.substring(0, source.length - 1)}, ${sourcemapArg}`;
+        }
+        const sourceArg = Buffer.from(source, options.enableUnicode ? 'utf16le' : 'utf8').toString('base64');
+        return `'${sourceArg}', ${sourcemapArg}, ${options.enableUnicode.toString()}`;
+    }
+    return `'${source}'`;
+}
+
+function buildWorkerCode(source, sourcemap = null, optionsArg = kDefaultsOptions) {
+    const options = Object.assign({}, kDefaultsOptions, optionsArg);
+    const factoryFuncName = getFactoryFuncName(options);
+    const argsString = getArgsString(source, sourcemap, options);
+    return `
+/* eslint-disable */
+import {${factoryFuncName}} from '\0rollup-plugin-web-worker-loader::helper::${options.targetPlatform}::${factoryFuncName}';
+var WorkerFactory = ${factoryFuncName}(${argsString});
+export default WorkerFactory;
+/* eslint-enable */\n`;
+}
+
+module.exports = buildWorkerCode;