1 files changed, 25 insertions, 0 deletions
diff --git a/tool/lrama/lib/lrama/warning.rb b/tool/lrama/lib/lrama/warning.rb
new file mode 100644
index 0000000000..3c99791ebf
--- /dev/null
+++ b/tool/lrama/lib/lrama/warning.rb
@@ -0,0 +1,25 @@
+module Lrama
+  class Warning
+    attr_reader :errors, :warns
+
+    def initialize(out = STDERR)
+      @out = out
+      @errors = []
+      @warns = []
+    end
+
+    def error(message)
+      @out << message << "\n"
+      @errors << message
+    end
+
+    def warn(message)
+      @out << message << "\n"
+      @warns << message
+    end
+
+    def has_error?
+      !@errors.empty?
+    end
+  end
+end