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/**

* @name Deleting non-property

* @description The operand of the 'delete' operator should always be a property accessor.

* @kind problem

* @problem.severity warning

* @id js/deletion-of-non-property

* @tags quality

* reliability

* correctness

* language-features

* external/cwe/cwe-480

* @precision very-high

*/

import javascript

from DeleteExpr del

where not del.getOperand().stripParens() instanceof PropAccess

select del, "Only properties should be deleted."