False Positive: TopLevelPropertyNaming applying to extension properties

[drewhannay]

Expected Behavior

I have code like this:

private val Foo.myProperty: String = "Hello"

and the TopLevelPropertyNaming rule is configured to enforce PascalCase for top level properties:

  TopLevelPropertyNaming:
    active: true
    constantPattern: '(?:[A-Z][a-z0-9]+)(?:[A-Z]+[a-z0-9]*)*'
    propertyPattern: '(?:[A-Z][a-z0-9]+)(?:[A-Z]+[a-z0-9]*)*'
    privatePropertyPattern: '_?(?:[A-Z][a-z0-9]+)(?:[A-Z]+[a-z0-9]*)*'

I would expect Foo.myProperty to not be flagged, because this is an extension property on the Foo type, not an actual top level property.

Observed Behavior

Detekt flags Foo.myProperty with the TopLevelPropertyNaming rule.

Steps to Reproduce

Configure TopLevelPropertyNaming with the above options and test against an extension property.

Context

We are trying to enforce PascalCase naming for top level properties on our project and many of these false positives are also being flagged.

Your Environment

• Version of detekt used: 1.23.6
• Version of Gradle used (if applicable): 8.6