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35 lines
974 B
Plaintext
35 lines
974 B
Plaintext
/**
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* @name Implicit string concatenation in a list
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* @description Omitting a comma between strings causes implicit concatenation which is confusing in a list.
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* @kind problem
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* @tags reliability
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* maintainability
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* convention
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* external/cwe/cwe-665
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* @problem.severity warning
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* @sub-severity high
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* @precision high
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* @id py/implicit-string-concatenation-in-list
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*/
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import python
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predicate string_const(Expr s) {
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s instanceof StringLiteral
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or
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string_const(s.(BinaryExpr).getLeft()) and string_const(s.(BinaryExpr).getRight())
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}
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from StringLiteral s
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where
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// Implicitly concatenated string is in a list and that list contains at least one other string.
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exists(List l, Expr other |
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not s = other and
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l.getAnElt() = s and
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l.getAnElt() = other and
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string_const(other)
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) and
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exists(s.getAnImplicitlyConcatenatedPart()) and
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not s.isParenthesized()
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select s, "Implicit string concatenation. Maybe missing a comma?"
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