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22 lines
598 B
22 lines
598 B
var classof = require('./classof-raw'); |
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var regexpExec = require('./regexp-exec'); |
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// `RegExpExec` abstract operation |
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// https://tc39.github.io/ecma262/#sec-regexpexec |
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module.exports = function (R, S) { |
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var exec = R.exec; |
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if (typeof exec === 'function') { |
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var result = exec.call(R, S); |
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if (typeof result !== 'object') { |
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throw TypeError('RegExp exec method returned something other than an Object or null'); |
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} |
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return result; |
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} |
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if (classof(R) !== 'RegExp') { |
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throw TypeError('RegExp#exec called on incompatible receiver'); |
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} |
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return regexpExec.call(R, S); |
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}; |
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