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12 lines
487 B
12 lines
487 B
var call = require('../internals/function-call'); |
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var hasOwn = require('../internals/has-own-property'); |
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var isPrototypeOf = require('../internals/object-is-prototype-of'); |
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var regExpFlags = require('../internals/regexp-flags'); |
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var RegExpPrototype = RegExp.prototype; |
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module.exports = function (R) { |
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var flags = R.flags; |
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return flags === undefined && !('flags' in RegExpPrototype) && !hasOwn(R, 'flags') && isPrototypeOf(RegExpPrototype, R) |
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? call(regExpFlags, R) : flags; |
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};
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