# File lib/sass/tree/visitors/perform.rb, line 248 def visit_warn(node) @environment.push_frame(:filename => node.filename, :line => node.line) res = node.expr.perform(@environment) res = res.value if res.is_a?(Sass::Script::String) msg = "WARNING: #{res}\n " msg << @environment.stack_trace.join("\n ") msg << "\n" Sass::Util.sass_warn msg [] ensure @environment.pop_frame end