lewp-css 0.2.0

// This file is part of css. It is subject to the license terms in the COPYRIGHT file found in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT. No part of predicator, including this file, may be copied, modified, propagated, or distributed except according to the terms contained in the COPYRIGHT file.
// Copyright © 2017 The developers of css. See the COPYRIGHT file in the top-level directory of this distribution and at https://raw.githubusercontent.com/lemonrock/css/master/COPYRIGHT.

use {
    super::{NamespacePrefix, NamespaceUrl},
    cssparser::ToCss,
    std::fmt,
};

/// A `@namespace` rule.
#[derive(Clone, Debug, PartialEq)]
#[allow(missing_docs)]
pub struct NamespaceAtRule {
    /// The namespace prefix, and `None` if it's the default Namespace
    pub prefix: Option<NamespacePrefix>,

    /// The actual namespace url.
    pub url: NamespaceUrl,
}

impl ToCss for NamespaceAtRule {
    // https://drafts.csswg.org/cssom/#serialize-a-css-rule
    fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result {
        dest.write_str("@namespace ")?;

        if let Some(ref prefix) = self.prefix {
            dest.write_str(&(prefix.0).0)?;
            dest.write_str(" ")?;
        }

        dest.write_str("url(")?;
        dest.write_str(&(self.url.0).0)?;
        dest.write_str(");")
    }
}