# File lib/sass/tree/visitors/perform.rb, line 331 def visit_warn(node) @stack.push(: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 << stack_trace.join("\n ") << "\n" Sass::Util.sass_warn msg [] ensure @stack.pop end