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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/@babel/runtime/helpers/builtin/wrapNativeSuper.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
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Diffstat (limited to 'node_modules/@babel/runtime/helpers/builtin/wrapNativeSuper.js')
| -rw-r--r-- | node_modules/@babel/runtime/helpers/builtin/wrapNativeSuper.js | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/node_modules/@babel/runtime/helpers/builtin/wrapNativeSuper.js b/node_modules/@babel/runtime/helpers/builtin/wrapNativeSuper.js new file mode 100644 index 00000000..3c2fc5ed --- /dev/null +++ b/node_modules/@babel/runtime/helpers/builtin/wrapNativeSuper.js @@ -0,0 +1,39 @@ +var getPrototypeOf = require("./getPrototypeOf"); + +var setPrototypeOf = require("./setPrototypeOf"); + +var construct = require("./construct"); + +function _wrapNativeSuper(Class) { + var _cache = typeof Map === "function" ? new Map() : undefined; + + module.exports = _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 setPrototypeOf(Wrapper, setPrototypeOf(function Super() { + return construct(Class, arguments, getPrototypeOf(this).constructor); + }, Class)); + }; + + return _wrapNativeSuper(Class); +} + +module.exports = _wrapNativeSuper;
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