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Edit File: register.js

import * as pirates from "pirates";

import { transform} from "./index";

export function addHook(
  extension,
  sucraseOptions,
  hookOptions,
) {
  let mergedSucraseOptions = sucraseOptions;
  const sucraseOptionsEnvJSON = process.env.SUCRASE_OPTIONS;
  if (sucraseOptionsEnvJSON) {
    mergedSucraseOptions = {...mergedSucraseOptions, ...JSON.parse(sucraseOptionsEnvJSON)};
  }
  return pirates.addHook(
    (code, filePath) => {
      const {code: transformedCode, sourceMap} = transform(code, {
        ...mergedSucraseOptions,
        sourceMapOptions: {compiledFilename: filePath},
        filePath,
      });
      const mapBase64 = Buffer.from(JSON.stringify(sourceMap)).toString("base64");
      const suffix = `//# sourceMappingURL=data:application/json;charset=utf-8;base64,${mapBase64}`;
      return `${transformedCode}\n${suffix}`;
    },
    {...hookOptions, exts: [extension]},
  );
}

export function registerJS(hookOptions) {
  return addHook(".js", {transforms: ["imports", "flow", "jsx"]}, hookOptions);
}

export function registerJSX(hookOptions) {
  return addHook(".jsx", {transforms: ["imports", "flow", "jsx"]}, hookOptions);
}

export function registerTS(hookOptions) {
  return addHook(".ts", {transforms: ["imports", "typescript"]}, hookOptions);
}

export function registerTSX(hookOptions) {
  return addHook(".tsx", {transforms: ["imports", "typescript", "jsx"]}, hookOptions);
}

export function registerTSLegacyModuleInterop(hookOptions) {
  return addHook(
    ".ts",
    {
      transforms: ["imports", "typescript"],
      enableLegacyTypeScriptModuleInterop: true,
    },
    hookOptions,
  );
}

export function registerTSXLegacyModuleInterop(hookOptions) {
  return addHook(
    ".tsx",
    {
      transforms: ["imports", "typescript", "jsx"],
      enableLegacyTypeScriptModuleInterop: true,
    },
    hookOptions,
  );
}

export function registerAll(hookOptions) {
  const reverts = [
    registerJS(hookOptions),
    registerJSX(hookOptions),
    registerTS(hookOptions),
    registerTSX(hookOptions),
  ];

return () => {
    for (const fn of reverts) {
      fn();
    }
  };
}

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