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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

// 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.


#[derive(Default, Debug, Clone, Eq, PartialEq)]
pub struct Namespaces
{
	defaultNamespace: Option<NamespaceUrl>,
	namespaces: HashMap<NamespacePrefix, NamespaceUrl>,
}

impl Namespaces
{
	#[inline(always)]
	pub fn default_namespace(&self) -> Option<NamespaceUrl>
	{
		self.defaultNamespace.as_ref().map(|reference| reference.clone())
	}
	
	#[inline(always)]
	pub fn namespace_for_prefix(&self, prefix: &NamespacePrefix) -> Option<NamespaceUrl>
	{
		self.namespaces.get(prefix).map(|reference| reference.clone())
	}
	
	#[inline(always)]
	pub(crate) fn empty() -> Rc<Self>
	{
		Rc::new(Self::default())
	}
	
	#[inline(always)]
	pub(crate) fn update(&mut self, prefix: Option<&NamespacePrefix>, url: &NamespaceUrl)
	{
		match prefix
		{
			None => self.defaultNamespace = Some(url.clone()),
			Some(prefix) =>
			{
				self.namespaces.insert(prefix.clone(), url.clone());
			},
		}
	}
}