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20 lines
701 B
Plaintext
20 lines
701 B
Plaintext
/**
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* @name Formatted object is not a mapping
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* @description The formatted object must be a mapping when the format includes a named specifier; otherwise a TypeError will be raised."
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* @kind problem
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* @tags reliability
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* correctness
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* @problem.severity error
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* @sub-severity low
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* @precision high
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* @id py/percent-format/not-mapping
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*/
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import python
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import semmle.python.strings
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from Expr e, ClassObject t
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where exists(BinaryExpr b | b.getOp() instanceof Mod and format_string(b.getLeft()) and e = b.getRight() and
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mapping_format(b.getLeft()) and e.refersTo(_, t, _) and not t.isMapping())
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select e, "Right hand side of a % operator must be a mapping, not class $@.", t, t.getName()
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