.

node_modules/@babel/helper-plugin-utils/lib/index.js

@@ -0,0 +1,77 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.declare = declare;
+
+function declare(builder) {
+  return (api, options, dirname) => {
+    if (!api.assertVersion) {
+      api = Object.assign(copyApiObject(api), {
+        assertVersion(range) {
+          throwVersionError(range, api.version);
+        }
+
+      });
+    }
+
+    return builder(api, options || {}, dirname);
+  };
+}
+
+function copyApiObject(api) {
+  let proto = null;
+
+  if (typeof api.version === "string" && /^7\./.test(api.version)) {
+    proto = Object.getPrototypeOf(api);
+
+    if (proto && (!has(proto, "version") || !has(proto, "transform") || !has(proto, "template") || !has(proto, "types"))) {
+      proto = null;
+    }
+  }
+
+  return Object.assign({}, proto, api);
+}
+
+function has(obj, key) {
+  return Object.prototype.hasOwnProperty.call(obj, key);
+}
+
+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
+  });
+}