# File lib/sass/tree/visitors/perform.rb, line 483 def visit_warn(node) res = node.expr.perform(@environment) res = res.value if res.is_a?(Sass::Script::Value::String) msg = "WARNING: #{res}\n " msg << @environment.stack.to_s.gsub("\n", "\n ") << "\n" Sass::Util.sass_warn msg [] end