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<!-- Please describe your changes on the following line: --> This changes the `parse` function's signature to include `ParserContext`, so that we don't introduce another trait just for the sake of the context. Instead, we can safely ignore the context whenever we don't need it. --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: --> - [x] `./mach build -d` does not report any errors - [x] `./mach test-tidy` does not report any errors <!-- Either: --> - [x] These changes do not require tests because it's a refactor <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. --> r? @SimonSapin or @emilio or @Manishearth Source-Repo: https://github.com/servo/servo Source-Revision: 4755cb7586ab4a89f35bbccf8b57c85ed2f428e7
75 lines
2.6 KiB
Rust
75 lines
2.6 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 http://mozilla.org/MPL/2.0/. */
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//! The context within which CSS code is parsed.
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use cssparser::{Parser, SourcePosition};
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use error_reporting::ParseErrorReporter;
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#[cfg(feature = "gecko")]
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use gecko_bindings::sugar::refptr::{GeckoArcPrincipal, GeckoArcURI};
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use servo_url::ServoUrl;
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use stylesheets::Origin;
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#[cfg(not(feature = "gecko"))]
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pub struct ParserContextExtraData;
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#[cfg(feature = "gecko")]
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pub struct ParserContextExtraData {
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pub base: Option<GeckoArcURI>,
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pub referrer: Option<GeckoArcURI>,
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pub principal: Option<GeckoArcPrincipal>,
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}
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impl ParserContextExtraData {
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#[cfg(not(feature = "gecko"))]
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pub fn default() -> ParserContextExtraData {
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ParserContextExtraData
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}
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#[cfg(feature = "gecko")]
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pub fn default() -> ParserContextExtraData {
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ParserContextExtraData { base: None, referrer: None, principal: None }
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}
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}
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pub struct ParserContext<'a> {
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pub stylesheet_origin: Origin,
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pub base_url: &'a ServoUrl,
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pub error_reporter: Box<ParseErrorReporter + Send>,
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pub extra_data: ParserContextExtraData,
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}
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impl<'a> ParserContext<'a> {
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pub fn new_with_extra_data(stylesheet_origin: Origin, base_url: &'a ServoUrl,
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error_reporter: Box<ParseErrorReporter + Send>,
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extra_data: ParserContextExtraData)
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-> ParserContext<'a> {
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ParserContext {
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stylesheet_origin: stylesheet_origin,
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base_url: base_url,
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error_reporter: error_reporter,
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extra_data: extra_data,
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}
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}
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pub fn new(stylesheet_origin: Origin, base_url: &'a ServoUrl, error_reporter: Box<ParseErrorReporter + Send>)
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-> ParserContext<'a> {
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let extra_data = ParserContextExtraData::default();
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ParserContext::new_with_extra_data(stylesheet_origin, base_url, error_reporter, extra_data)
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}
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}
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/// Defaults to a no-op.
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/// Set a `RUST_LOG=style::errors` environment variable
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/// to log CSS parse errors to stderr.
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pub fn log_css_error(input: &mut Parser, position: SourcePosition, message: &str, parsercontext: &ParserContext) {
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parsercontext.error_reporter.report_error(input, position, message);
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}
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// XXXManishearth Replace all specified value parse impls with impls of this
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// trait. This will make it easy to write more generic values in the future.
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pub trait Parse {
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fn parse(context: &ParserContext, input: &mut Parser) -> Result<Self, ()> where Self: Sized;
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}
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