css 0.0.22

A crate that uses the cssparser and selectors crates to provide a domain model for CSS Stylesheets. Intended to allow effective minification of CSS and CSS transformations such as autoprefixing and removal by other crates
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// 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.


/// A declaration [importance][importance].
///
/// [importance]: https://drafts.csswg.org/css-cascade/#importance
#[derive(Debug, Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
pub enum Importance
{
	/// Indicates a declaration without `!important`.
	Normal,
	
	/// Indicates a declaration with `!important`.
	Important,
}

impl Default for Importance
{
	#[inline(always)]
	fn default() -> Self
	{
		Importance::Normal
	}
}

impl ToCss for Importance
{
	fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result
	{
		match *self
		{
			Normal => Ok(()),
			Important => dest.write_str("!important"),
		}
	}
}

impl HasImportance for Importance
{
	#[inline(always)]
	fn validateParsedImportance<'i>(importance: Importance) -> Result<Self, ParseError<'i, CustomParseError<'i>>>
	{
		Ok(importance)
	}
	
	/// Return whether this is an important declaration.
	#[inline(always)]
	fn isImportant(&self) -> bool
	{
		match *self
		{
			Normal => false,
			Important => true,
		}
	}
}

impl Importance
{
	#[inline(always)]
	pub fn from_bool(isImportant: bool) -> Self
	{
		if isImportant
		{
			Important
		}
		else
		{
			Normal
		}
	}
	
	#[inline(always)]
	pub(crate) fn parse<'i, 't>(input: &mut Parser<'i, 't>) -> Self
	{
		Self::from_bool(input.try(parse_important).is_ok())
	}
}