DuplicateBlock.ql

/**
 * @name Duplicate code
 * @description This block of code is duplicated elsewhere. If possible, the shared code should be refactored so there is only one occurrence left. It may not always be possible to address these issues; other duplicate code checks (such as duplicate function, duplicate class) give subsets of the results with higher confidence.
 * @kind problem
 * @id cpp/duplicate-block
 * @problem.severity recommendation
 * @precision medium
 * @tags testability
 *       maintainability
 *       duplicate-code
 *       non-attributable
 */
import CodeDuplication

from DuplicateBlock d, DuplicateBlock other, int lines, File otherFile, int otherLine
where lines = d.sourceLines() and
      lines > 10 and
      other.getEquivalenceClass() = d.getEquivalenceClass() and 
      other != d and
      otherFile = other.sourceFile() and
      otherLine = other.sourceStartLine()
select 
   d, 
   "Duplicate code: " + lines + " lines are duplicated at " + otherFile.getBaseName() + ":" + otherLine