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Bug 1824671 - patch 10 - Switch unicode-bidi-ffi to use icu_properties as data source. r=platform-i18n-reviewers,dminor

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Looking up the BidiClass property via icu_properties is more efficient than the
built-in version provided in unicode-bidi.

Differential Revision: https://phabricator.services.mozilla.com/D198449
This commit is contained in:
Jonathan Kew 2024-02-06 11:41:12 +00:00
parent 0819bee024
commit 213ad19af0
1 changed files with 10 additions and 3 deletions
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13
intl/bidi/rust/unicode-bidi-ffi/src/lib.rs
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@ -2,6 +2,9 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
use icu_properties::bidi::BidiClassAdapter;
use icu_properties::maps;
use unicode_bidi::level::Level;
use unicode_bidi::utf16;
use unicode_bidi::Direction;
@ -38,8 +41,11 @@ impl UnicodeBidi<'_> {
} else {
None
};
let adapter = BidiClassAdapter::new(maps::bidi_class());
Box::new(UnicodeBidi {
paragraph_info: utf16::ParagraphBidiInfo::<'a>::new(text, level),
paragraph_info: utf16::ParagraphBidiInfo::<'a>::new_with_data_source(
&adapter, text, level,
),
resolved: None,
})
}
@ -153,14 +159,15 @@ pub extern "C" fn bidi_get_base_direction(
first_paragraph: bool,
) -> i8 {
let text = unsafe { slice::from_raw_parts(text, length) };
let adapter = BidiClassAdapter::new(maps::bidi_class());
if first_paragraph {
match unicode_bidi::get_base_direction(text) {
match unicode_bidi::get_base_direction_with_data_source(&adapter, text) {
Direction::Mixed => 0,
Direction::Ltr => 1,
Direction::Rtl => -1,
}
} else {
match unicode_bidi::get_base_direction_full(text) {
match unicode_bidi::get_base_direction_full_with_data_source(&adapter, text) {
Direction::Mixed => 0,
Direction::Ltr => 1,
Direction::Rtl => -1,