tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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mod.rs (2296B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
      4 
      5 use cssparser::{Parser, ParserInput};
      6 use style::context::QuirksMode;
      7 use style::parser::ParserContext;
      8 use style::stylesheets::{CssRuleType, Origin};
      9 use style_traits::{ParseError, ParsingMode};
     10 
     11 fn parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
     12 where
     13    F: for<'t> Fn(&ParserContext, &mut Parser<'static, 't>) -> Result<T, ParseError<'static>>,
     14 {
     15    let mut input = ParserInput::new(s);
     16    parse_input(f, &mut input)
     17 }
     18 
     19 fn parse_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>>
     20 where
     21    F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>>,
     22 {
     23    let url = ::servo_url::ServoUrl::parse("http://localhost").unwrap();
     24    let context = ParserContext::new(
     25        Origin::Author,
     26        &url,
     27        Some(CssRuleType::Style),
     28        ParsingMode::DEFAULT,
     29        QuirksMode::NoQuirks,
     30        None,
     31        None,
     32    );
     33    let mut parser = Parser::new(input);
     34    f(&context, &mut parser)
     35 }
     36 
     37 macro_rules! assert_roundtrip_with_context {
     38    ($fun:expr, $string:expr) => {
     39        assert_roundtrip_with_context!($fun, $string, $string);
     40    };
     41    ($fun:expr, $input:expr, $output:expr) => {{
     42        let serialized = parse(
     43            |context, i| {
     44                let parsed = $fun(context, i).expect(&format!("Failed to parse {}", $input));
     45                let serialized = ToCss::to_css_string(&parsed);
     46                assert_eq!(serialized, $output);
     47                Ok(serialized)
     48            },
     49            $input,
     50        )
     51        .unwrap();
     52 
     53        let mut input = ::cssparser::ParserInput::new(&serialized);
     54        let unwrapped = parse_input(
     55            |context, i| {
     56                let re_parsed =
     57                    $fun(context, i).expect(&format!("Failed to parse serialization {}", $input));
     58                let re_serialized = ToCss::to_css_string(&re_parsed);
     59                assert_eq!(serialized, re_serialized);
     60                Ok(())
     61            },
     62            &mut input,
     63        )
     64        .unwrap();
     65        unwrapped
     66    }};
     67 }
     68 
     69 mod scaffolding;
     70 mod serialization;