index.js
f40d8f152a93rights-mgmt

index.js
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			"use strict";

			exports.__esModule = true;
			exports.default = void 0;

			/**
			* Safari ~11 has an issue where variable declarations in a For statement throw if they shadow parameters.
			* This is fixed by renaming any declarations in the left/init part of a For* statement so they don't shadow.
			* @see https://bugs.webkit.org/show_bug.cgi?id=171041
			*
			* @example
			* e => { for (let e of []) e } // throws
			* e => { for (let _e of []) _e } // works
			*/
			function handle(declaration) {
			if (!declaration.isVariableDeclaration()) return;
			const fn = declaration.getFunctionParent();
			const {
			name
			} = declaration.node.declarations[0].id; // check if there is a shadowed binding coming from a parameter

			if (fn && fn.scope.hasOwnBinding(name) && fn.scope.getOwnBinding(name).kind === "param") {
			declaration.scope.rename(name);
			}
			}

			var _default = () => ({
			name: "transform-safari-for-shadowing",
			visitor: {
			ForXStatement(path) {
			handle(path.get("left"));
			},

			ForStatement(path) {
			handle(path.get("init"));
			}

			}
			});

			exports.default = _default;
			module.exports = exports.default;