InvalidRange.md

Pattern: Invalid range

Issue: -

Description

Reports ranges which are empty. This might be a bug if it is used for instance as a loop condition. This loop will never be triggered. This might be due to invalid ranges like (10..9) which will cause the loop to never be entered.

Example of incorrect code:

for (i in 2..1) {}
for (i in 1 downTo 2) {}

val range = 2 until 1

Example of correct code:

for (i in 2..2) {}
for (i in 2 downTo 2) {}

val range =  2 until 2)

Further Reading

• Detekt - InvalidRange