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20 lines
562 B
20 lines
562 B
"use strict"; |
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module.exports.mixin = function mixin(target, source) { |
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const keys = Object.getOwnPropertyNames(source); |
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for (let i = 0; i < keys.length; ++i) { |
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Object.defineProperty(target, keys[i], Object.getOwnPropertyDescriptor(source, keys[i])); |
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} |
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}; |
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module.exports.wrapperSymbol = Symbol("wrapper"); |
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module.exports.implSymbol = Symbol("impl"); |
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module.exports.wrapperForImpl = function (impl) { |
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return impl[module.exports.wrapperSymbol]; |
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}; |
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module.exports.implForWrapper = function (wrapper) { |
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return wrapper[module.exports.implSymbol]; |
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}; |
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