зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.2 KiB
Rust
67 строки
2.2 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use cssparser::{Parser, ParserInput};
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use style::context::QuirksMode;
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use style::parser::ParserContext;
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use style::stylesheets::{CssRuleType, Origin};
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use style_traits::{ParsingMode, ParseError};
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fn parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
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where
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F: for<'t> Fn(
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&ParserContext,
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&mut Parser<'static, 't>,
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) -> Result<T, ParseError<'static>>
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{
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let mut input = ParserInput::new(s);
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parse_input(f, &mut input)
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}
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fn parse_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>>
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where
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F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>>,
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{
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let url = ::servo_url::ServoUrl::parse("http://localhost").unwrap();
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let context = ParserContext::new(
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Origin::Author,
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&url,
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Some(CssRuleType::Style),
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ParsingMode::DEFAULT,
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QuirksMode::NoQuirks,
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None,
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None,
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);
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let mut parser = Parser::new(input);
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f(&context, &mut parser)
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}
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macro_rules! assert_roundtrip_with_context {
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($fun:expr, $string:expr) => {
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assert_roundtrip_with_context!($fun, $string, $string);
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};
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($fun:expr, $input:expr, $output:expr) => {{
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let serialized = parse(|context, i| {
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let parsed = $fun(context, i)
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.expect(&format!("Failed to parse {}", $input));
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let serialized = ToCss::to_css_string(&parsed);
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assert_eq!(serialized, $output);
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Ok(serialized)
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}, $input).unwrap();
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let mut input = ::cssparser::ParserInput::new(&serialized);
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let unwrapped = parse_input(|context, i| {
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let re_parsed = $fun(context, i)
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.expect(&format!("Failed to parse serialization {}", $input));
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let re_serialized = ToCss::to_css_string(&re_parsed);
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assert_eq!(serialized, re_serialized);
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Ok(())
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}, &mut input).unwrap();
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unwrapped
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}}
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}
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mod scaffolding;
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mod serialization;
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