Fix handling of ::class in Kotlin lexer (rouge-ruby#1572)

Due to the way the Kotlin lexer treats the 'class' keyword, the use of the callable reference, `::class`, can result in the lexer moving into an incorrect state where it interprets `class` as beginning a class definition. This commit fixes that bug. Co-authored-by: Michael Camilleri <mike@inqk.net>
NSHipster · May 19, 2021 · 889ccbc · 889ccbc
1 parent 3f2a70d
commit 889ccbc
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/rouge/lexers/kotlin.rb b/lib/rouge/lexers/kotlin.rb
@@ -65,6 +65,9 @@ class Kotlin < RegexLexer
         rule %r'/[*].*[*]/', Comment::Multiline # single line block comment
         rule %r'/[*].*', Comment::Multiline, :comment # multiline block comment
         rule %r'\n', Text
+        rule %r'(::)(class)' do
+          groups Operator, Keyword
+        end
         rule %r'::|!!|\?[:.]', Operator
         rule %r"(\.\.)", Operator
         # Number literals