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31 lines
1.0 KiB
31 lines
1.0 KiB
var naiveFallback = function () { |
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if (typeof self === "object" && self) return self; |
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if (typeof window === "object" && window) return window; |
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throw new Error("Unable to resolve global `this`"); |
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}; |
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module.exports = (function () { |
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if (this) return this; |
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// Unexpected strict mode (may happen if e.g. bundled into ESM module) |
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// Thanks @mathiasbynens -> https://mathiasbynens.be/notes/globalthis |
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// In all ES5+ engines global object inherits from Object.prototype |
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// (if you approached one that doesn't please report) |
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try { |
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Object.defineProperty(Object.prototype, "__global__", { |
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get: function () { return this; }, |
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configurable: true |
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}); |
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} catch (error) { |
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// Unfortunate case of Object.prototype being sealed (via preventExtensions, seal or freeze) |
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return naiveFallback(); |
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} |
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try { |
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// Safari case (window.__global__ is resolved with global context, but __global__ does not) |
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if (!__global__) return naiveFallback(); |
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return __global__; |
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} finally { |
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delete Object.prototype.__global__; |
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} |
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})();
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