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import compileToString from "./compile-string.ts";import { getConfig } from "./config.ts";import EtaErr from "./err.ts";
/* TYPES */
import type { EtaConfig, PartialConfig } from "./config.ts";import type { CallbackFn } from "./file-handlers.ts";import { getAsyncFunctionConstructor } from "./polyfills.ts";export type TemplateFunction = (  data: object,  config: EtaConfig,  cb?: CallbackFn,) => string;
/* END TYPES */
/** * Takes a template string and returns a template function that can be called with (data, config, [cb]) * * @param str - The template string * @param config - A custom configuration object (optional) * * **Example** * * ```js * let compiledFn = eta.compile("Hi <%= it.user %>") * // function anonymous() * let compiledFnStr = compiledFn.toString() * // "function anonymous(it,E,cb\n) {\nvar tR='',include=E.include.bind(E),includeFile=E.includeFile.bind(E);tR+='Hi ';tR+=E.e(it.user);if(cb){cb(null,tR)} return tR\n}" * ``` */
export default function compile(  str: string,  config?: PartialConfig,): TemplateFunction {  var options: EtaConfig = getConfig(config || {});  var ctor; // constructor
  /* ASYNC HANDLING */  // The below code is modified from mde/ejs. All credit should go to them.  if (options.async) {    ctor = getAsyncFunctionConstructor() as FunctionConstructor;  } else {    ctor = Function;  }  /* END ASYNC HANDLING */  try {    return new ctor(      options.varName,      "E", // EtaConfig      "cb", // optional callback      compileToString(str, options),    ) as TemplateFunction; // eslint-disable-line no-new-func  } catch (e) {    if (e instanceof SyntaxError) {      throw EtaErr(        "Bad template syntax\n\n" +          e.message +          "\n" +          Array(e.message.length + 1).join("=") +          "\n" +          compileToString(str, options) +          "\n", // This will put an extra newline before the callstack for extra readability      );    } else {      throw e;    }  }}