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20 lines
460 B
Plaintext
20 lines
460 B
Plaintext
/**
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* @name Empty character class
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* @description Empty character classes are not normally useful and may indicate a bug.
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* @kind problem
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* @problem.severity warning
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* @id js/regex/empty-character-class
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* @tags reliability
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* correctness
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* regular-expressions
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* @precision very-high
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*/
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import javascript
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from RegExpCharacterClass recc
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where
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not exists(recc.getAChild()) and
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not recc.isInverted()
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select recc, "Empty character class."
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