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Diffstat (limited to 'node_modules/@babel/runtime/helpers/builtin/es6/wrapNativeSuper.js')
| -rw-r--r-- | node_modules/@babel/runtime/helpers/builtin/es6/wrapNativeSuper.js | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/node_modules/@babel/runtime/helpers/builtin/es6/wrapNativeSuper.js b/node_modules/@babel/runtime/helpers/builtin/es6/wrapNativeSuper.js new file mode 100644 index 00000000..efa3bafc --- /dev/null +++ b/node_modules/@babel/runtime/helpers/builtin/es6/wrapNativeSuper.js @@ -0,0 +1,34 @@ +import _gPO from "./getPrototypeOf"; +import _sPO from "./setPrototypeOf"; +import construct from "./construct"; +export default function _wrapNativeSuper(Class) { + var _cache = typeof Map === "function" ? new Map() : undefined; + + _wrapNativeSuper = function _wrapNativeSuper(Class) { + if (typeof Class !== "function") { + throw new TypeError("Super expression must either be null or a function"); + } + + if (typeof _cache !== "undefined") { + if (_cache.has(Class)) return _cache.get(Class); + + _cache.set(Class, Wrapper); + } + + function Wrapper() {} + + Wrapper.prototype = Object.create(Class.prototype, { + constructor: { + value: Wrapper, + enumerable: false, + writable: true, + configurable: true + } + }); + return _sPO(Wrapper, _sPO(function Super() { + return construct(Class, arguments, _gPO(this).constructor); + }, Class)); + }; + + return _wrapNativeSuper(Class); +}
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