//BLOCK comment lint rule

BlockCommentDetector.kt

class BlockCommentDetector : Detector(), Detector.UastScanner {
    companion object {
        val ISSUE: Issue = Issue.create(
                "BlockComment",
                "BLOCK comment found, cannot continue build.",
                "Please resolve all BLOCK commented code before merging.",
                Category.CORRECTNESS,
                6,
                Severity.ERROR,
                Implementation(BlockCommentDetector::class.java, Scope.JAVA_FILE_SCOPE)
        )
    }

    override fun getApplicableUastTypes(): MutableList<Class<out UElement>> {
        return mutableListOf(UFile::class.java)
    }

    override fun createUastHandler(context: JavaContext): UElementHandler {
        return object : UElementHandler() {
            override fun visitFile(node: UFile) {
                node.allCommentsInFile
                        .filter { it.text.startsWith("//BLOCK") || it.text.startsWith("// BLOCK") }
                        .forEach { comment ->
                            context.report(ISSUE, context.getLocation(comment), "Resolve all BLOCK commented code before merging.")
                        }
            }
        }
    }
}