class Sass::Tree::Visitors::DeepCopy
def visit_if(node)
def visit_if(node) node.expr = node.expr.deep_copy if node.expr node.else = visit(node.else) if node.else yield end
def visit_if(node) node.expr = node.expr.deep_copy if node.expr node.else = visit(node.else) if node.else yield end