diff options
Diffstat (limited to 'lib/gitlab/changelog/eval_state.rb')
-rw-r--r-- | lib/gitlab/changelog/eval_state.rb | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/gitlab/changelog/eval_state.rb b/lib/gitlab/changelog/eval_state.rb new file mode 100644 index 00000000000..a0439df60cf --- /dev/null +++ b/lib/gitlab/changelog/eval_state.rb @@ -0,0 +1,26 @@ +# frozen_string_literal: true + +module Gitlab + module Changelog + # A class for tracking state when evaluating a template + class EvalState + MAX_LOOPS = 4 + + def initialize + @loops = 0 + end + + def enter_loop + if @loops == MAX_LOOPS + raise Error, "You can only nest up to #{MAX_LOOPS} loops" + end + + @loops += 1 + retval = yield + @loops -= 1 + + retval + end + end + end +end |