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 list of property declarations
#[derive(Default, Debug, Clone, Ord, PartialOrd, Eq, PartialEq, Hash)]
pub struct PropertyDeclarations<I: HasImportance>(pub Vec<PropertyDeclaration<I>>);

impl<I: HasImportance> ToCss for PropertyDeclarations<I>
{
	fn to_css<W: fmt::Write>(&self, dest: &mut W) -> fmt::Result
	{
		let length = self.0.len();
		if length != 0
		{
			for index in 0..(length - 1)
			{
				(unsafe { self.0.get_unchecked(index) }).to_css(dest)?;
			}
			
			(unsafe { self.0.get_unchecked(length -1) }).to_css_without_trailing_semicolon(dest)
		}
		else
		{
			Ok(())
		}
	}
}

impl<I: HasImportance> HasPropertyDeclarations<I> for PropertyDeclarations<I>
{
	#[inline(always)]
	fn property_declarations(&self) -> &PropertyDeclarations<I>
	{
		self
	}
	
	#[inline(always)]
	fn property_declarations_mut(&mut self) -> &mut PropertyDeclarations<I>
	{
		self
	}
	
	#[inline(always)]
	fn property_declarations_slice(&self) -> &[PropertyDeclaration<I>]
	{
		&self.0[..]
	}
	
	#[inline(always)]
	fn property_declarations_vec(&self) -> &Vec<PropertyDeclaration<I>>
	{
		&self.0
	}
	
	#[inline(always)]
	fn property_declarations_vec_mut(&mut self) -> &mut Vec<PropertyDeclaration<I>>
	{
		&mut self.0
	}
}

impl<I: HasImportance> PropertyDeclarations<I>
{
	#[inline(always)]
	pub fn is_empty(&self) -> bool
	{
		self.0.is_empty()
	}
	
	// Parse a list of property declarations and return a property declaration block.
	pub(crate) fn parse_property_declaration_list<'i: 't, 't>(context: &ParserContext, input: &mut Parser<'i, 't>) -> Result<PropertyDeclarations<I>, ParseError<'i, CustomParseError<'i>>>
	{
		let mut propertyDeclarations = Vec::new();
		let mut parsedPropertyDeclarations = DeclarationListParser::new(input, PropertyDeclarationParser
		{
			context,
			marker: PhantomData,
		});
		
		while let Some(propertyDeclaration) = parsedPropertyDeclarations.next()
		{
			match propertyDeclaration
			{
				Ok(propertyDeclaration) => propertyDeclarations.push(propertyDeclaration),
				Err(preciseParseError) => return Err(preciseParseError.error),
			}
		}
		
		Ok(PropertyDeclarations(propertyDeclarations))
	}
}