import gensync from "gensync";
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import loadConfig from "./config";
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import type { InputOptions, ResolvedConfig } from "./config";
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import { run } from "./transformation";
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import type { FileResult, FileResultCallback } from "./transformation";
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import * as fs from "./gensync-utils/fs";
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type transformFileBrowserType = typeof import("./transform-file-browser");
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type transformFileType = typeof import("./transform-file");
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// Kind of gross, but essentially asserting that the exports of this module are the same as the
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// exports of transform-file-browser, since this file may be replaced at bundle time with
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// transform-file-browser.
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({} as any as transformFileBrowserType as transformFileType);
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type TransformFile = {
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(filename: string, callback: FileResultCallback): void;
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(
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filename: string,
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opts: InputOptions | undefined | null,
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callback: FileResultCallback,
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): void;
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};
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const transformFileRunner = gensync<
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(filename: string, opts?: InputOptions) => FileResult | null
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>(function* (filename, opts: InputOptions) {
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const options = { ...opts, filename };
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const config: ResolvedConfig | null = yield* loadConfig(options);
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if (config === null) return null;
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const code = yield* fs.readFile(filename, "utf8");
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return yield* run(config, code);
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});
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export const transformFile = transformFileRunner.errback as TransformFile;
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export const transformFileSync = transformFileRunner.sync;
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export const transformFileAsync = transformFileRunner.async;
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