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40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
/**
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* @name Duplicated lines in files
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* @description The number of lines in a file (including code, comment and whitespace lines)
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* occurring in a block of lines that is duplicated at least once somewhere else.
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* @kind treemap
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* @treemap.warnOn highValues
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* @metricType file
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* @metricAggregate avg sum max
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* @precision high
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* @id js/duplicated-lines-in-files
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* @tags testability
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* duplicate-code
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* non-attributable
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*/
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import external.CodeDuplication
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/**
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* Holds if line `l` of file `f` should be excluded from duplicated code detection.
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*
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* Currently, only lines on which an import declaration occurs are excluded.
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*/
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predicate whitelistedLineForDuplication(File f, int l) {
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exists(ImportDeclaration i | i.getFile() = f and i.getLocation().getStartLine() = l)
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}
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/**
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* Holds if line `l` of file `f` belongs to a block of lines that is duplicated somewhere else.
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*/
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predicate dupLine(int l, File f) {
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exists(DuplicateBlock d | d.sourceFile() = f |
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l in [d.sourceStartLine() .. d.sourceEndLine()] and
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not whitelistedLineForDuplication(f, l)
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)
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}
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from File f, int n
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where n = count(int l | dupLine(l, f))
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select f, n order by n desc
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