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							- "use strict";
 
- Object.defineProperty(exports, "__esModule", {
 
-   value: true
 
- });
 
- exports.declare = declare;
 
- exports.declarePreset = void 0;
 
- const apiPolyfills = {
 
-   assertVersion: api => range => {
 
-     throwVersionError(range, api.version);
 
-   }
 
- };
 
- {
 
-   Object.assign(apiPolyfills, {
 
-     targets: () => () => {
 
-       return {};
 
-     },
 
-     assumption: () => () => {
 
-       return undefined;
 
-     },
 
-     addExternalDependency: () => () => {}
 
-   });
 
- }
 
- function declare(builder) {
 
-   return (api, options, dirname) => {
 
-     let clonedApi;
 
-     for (const name of Object.keys(apiPolyfills)) {
 
-       if (api[name]) continue;
 
-       clonedApi != null ? clonedApi : clonedApi = copyApiObject(api);
 
-       clonedApi[name] = apiPolyfills[name](clonedApi);
 
-     }
 
-     return builder(clonedApi != null ? clonedApi : api, options || {}, dirname);
 
-   };
 
- }
 
- const declarePreset = exports.declarePreset = declare;
 
- function copyApiObject(api) {
 
-   let proto = null;
 
-   if (typeof api.version === "string" && /^7\./.test(api.version)) {
 
-     proto = Object.getPrototypeOf(api);
 
-     if (proto && (!hasOwnProperty.call(proto, "version") || !hasOwnProperty.call(proto, "transform") || !hasOwnProperty.call(proto, "template") || !hasOwnProperty.call(proto, "types"))) {
 
-       proto = null;
 
-     }
 
-   }
 
-   return Object.assign({}, proto, api);
 
- }
 
- function throwVersionError(range, version) {
 
-   if (typeof range === "number") {
 
-     if (!Number.isInteger(range)) {
 
-       throw new Error("Expected string or integer value.");
 
-     }
 
-     range = `^${range}.0.0-0`;
 
-   }
 
-   if (typeof range !== "string") {
 
-     throw new Error("Expected string or integer value.");
 
-   }
 
-   const limit = Error.stackTraceLimit;
 
-   if (typeof limit === "number" && limit < 25) {
 
-     Error.stackTraceLimit = 25;
 
-   }
 
-   let err;
 
-   if (version.slice(0, 2) === "7.") {
 
-     err = new Error(`Requires Babel "^7.0.0-beta.41", but was loaded with "${version}". ` + `You'll need to update your @babel/core version.`);
 
-   } else {
 
-     err = new Error(`Requires Babel "${range}", but was loaded with "${version}". ` + `If you are sure you have a compatible version of @babel/core, ` + `it is likely that something in your build process is loading the ` + `wrong version. Inspect the stack trace of this error to look for ` + `the first entry that doesn't mention "@babel/core" or "babel-core" ` + `to see what is calling Babel.`);
 
-   }
 
-   if (typeof limit === "number") {
 
-     Error.stackTraceLimit = limit;
 
-   }
 
-   throw Object.assign(err, {
 
-     code: "BABEL_VERSION_UNSUPPORTED",
 
-     version,
 
-     range
 
-   });
 
- }
 
- //# sourceMappingURL=index.js.map
 
 
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