resources.report.rules.pmd.PositionLiteralsFirstInCaseInsensitiveComparisons.html Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sanity4j Show documentation

Sanity4J was created to simplify running multiple static code analysis tools on the Java projects. It provides a single entry point to run all the selected tools and produce a consolidated report, which presents all findings in an easily accessible manner.

The newest version!



PositionLiteralsFirstInCaseInsensitiveComparisons

PositionLiteralsFirstInCaseInsensitiveComparisons

Position literals first in comparisons, if the second argument is null then NullPointerExceptions can be avoided, they will just return false.


              
//PrimaryExpression[
        PrimaryPrefix[Name
                [
    (ends-with(@Image, '.equalsIgnoreCase'))
                ]
        ]
        [
                   (../PrimarySuffix/Arguments/ArgumentList/Expression/PrimaryExpression/PrimaryPrefix/Literal)
    and
    ( count(../PrimarySuffix/Arguments/ArgumentList/Expression) = 1 )
        ]
]
[not(ancestor::Expression/ConditionalAndExpression//EqualityExpression[@Image='!=']//NullLiteral)]
[not(ancestor::Expression/ConditionalOrExpression//EqualityExpression[@Image='==']//NullLiteral)]

          

Example(s):



class Foo {
  boolean bar(String x) {
    return x.equalsIgnoreCase("2"); // should be "2".equalsIgnoreCase(x)
  }
}