types/types.rs
1// Copyright 2024 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4pub use std::ops::Range;
5
6#[derive(Debug)]
7#[allow(dead_code)] // This is included in two targets. It is exercised in lib, but not in 'gen'.
8pub struct CCCEntry {
9 /// The exclusive, lower 16-bits of end of the range for a given entry.
10 /// e.g. If 0xfff0..0xffff maps to 222 (say), then this would contain 0xfffe but not 0xffff
11 pub low_plane_end_ix: u16,
12 /// The size of the range. e.g. For range 2..6, this would be 4.
13 pub range_len: u8,
14 /// The CCC for this range. Note that we don't store CCC=0.
15 pub ccc: u8,
16}
17impl CCCEntry {
18 #[allow(dead_code)]
19 pub fn range(&self) -> Range<u16> {
20 (self.low_plane_end_ix - self.range_len as u16)..self.low_plane_end_ix
21 }
22}
23
24#[derive(Debug)]
25#[allow(dead_code)] // This is included in two targets. It is exercised in lib, but not in 'gen'.
26pub struct MappingOffset {
27 /// The exclusive, lower 16-bits of a codepoint in a code plane.
28 pub low_plane_ix: u16,
29 /// A mapping offset (e.g. into a string table)
30 pub offset: u16,
31}