Emilio Cobos Álvarez 9013524d23 Bug 1879743 - Rewrite custom property substitution to avoid re-tokenization. r=zrhoffman,firefox-style-system-reviewers ... This speeds up custom variable substitution by avoiding re-tokenizing, and variable reference parsing by avoiding doing duplicate work. This is a very noticeable improvement in the NewsSite subtests of speedometer 3 (see comparison posted in bug 1879318 and the #perf-sp3 matrix channel). But it also probably helps most websites using lots of variables, and the browser UI itself. Finally, it also avoids some duplication. Now regular substitution and fallback substitution is handled uniformly, which causes a progression in some properties-and-values tests. Differential Revision: https://phabricator.services.mozilla.com/D201116		2024-02-11 15:23:22 +00:00
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Cargo.toml	Bug 1852568 - Update cssparser. r=tlouw,supply-chain-reviewers	2023-09-12 16:03:44 +00:00
lib.rs	Bug 1879743 - Rewrite custom property substitution to avoid re-tokenization. r=zrhoffman,firefox-style-system-reviewers	2024-02-11 15:23:22 +00:00