Empty-blocks Rule Set

The empty-blocks ruleset contains rules that will report empty blocks of code which should be avoided.

EmptyCatchBlock

Reports empty catch blocks. Empty catch blocks indicate that an exception is ignored and not handled. In case exceptions are ignored intentionally, this should be made explicit by using the specified names in the allowedExceptionNameRegex.

Active by default: Yes - Since v1.0.0

Configuration options:

• allowedExceptionNameRegex (default: '_|(ignore|expected).*')

  ignores exception types which match this regex

EmptyClassBlock

Reports empty classes. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyDefaultConstructor

Reports empty default constructors. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyDoWhileBlock

Reports empty do/while loops. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyElseBlock

Reports empty else blocks. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyFinallyBlock

Reports empty finally blocks. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyForBlock

Reports empty for loops. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyFunctionBlock

Reports empty functions. Empty blocks of code serve no purpose and should be removed. This rule will not report functions with the override modifier that have a comment as their only body contents (e.g., a // no-op comment in an unused listener function).

Set the ignoreOverridden parameter to true to exclude all functions which are overriding other functions from the superclass or from an interface (i.e., functions declared with the override modifier).

Active by default: Yes - Since v1.0.0

Configuration options:

• ignoreOverridden (default: false)

  Excludes all the overridden functions

EmptyIfBlock

Reports empty if blocks. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyInitBlock

Reports empty init expressions. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyKotlinFile

Reports empty Kotlin (.kt, .kts) files. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptySecondaryConstructor

Reports empty secondary constructors. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyTryBlock

Reports empty try blocks. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.6.0

EmptyWhenBlock

Reports empty when expressions. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0

EmptyWhileBlock

Reports empty while expressions. Empty blocks of code serve no purpose and should be removed.

Active by default: Yes - Since v1.0.0