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Author SHA1 Message Date
Dylan M. Taylor 11fec161cc Fonts: ignore variation tags the font has no axis for 2026-11-03 20:32:00 +00:00
4 changed files with 8 additions and 25 deletions
+7 -3
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@@ -1215,9 +1215,8 @@ impl FontDb {
fn instance(&self, family: &str, style: &str) -> Option<Arc<FontFace>> {
let open = style.find('{')?;
let base = self.find(family, style[..open].trim())?;
if base.skrifa().is_none_or(|f| f.axes().is_empty()) {
return Some(base);
}
let Some(font) = base.skrifa().filter(|f| !f.axes().is_empty()) else { return Some(base) };
let axis_tags: Vec<[u8; 4]> = font.axes().iter().map(|a| a.tag().to_be_bytes()).collect();
let mut coords = base.coords.clone();
for kv in style[open + 1..].trim_end_matches('}').split(',') {
let (k, v) = kv.split_once(':')?;
@@ -1227,6 +1226,11 @@ impl FontDb {
return None;
}
let tag = [k[0], k[1], k[2], k[3]];
// A tag the font has no axis for changes nothing; keeping it would grow the list with
// every distinct tag in the style text.
if !axis_tags.contains(&tag) {
continue;
}
match coords.iter_mut().find(|(t, _)| *t == tag) {
Some(c) => c.1 = v,
None => coords.push((tag, v)),
-5
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@@ -415,11 +415,6 @@ impl CaptureScanner {
}
fn read_parts(src: &(impl ByteSource + ?Sized), parts: &[(u64, u32)]) -> Result<Vec<u8>> {
// Ranges come from a scan of some source; check them against this one before sizing a buffer.
let len = src.len();
if parts.iter().any(|&(o, n)| o.checked_add(u64::from(n)).is_none_or(|end| end > len)) {
return Err(Error::Invalid("packet range lies outside the source".into()));
}
let mut v = Vec::with_capacity(parts.iter().map(|p| p.1 as usize).sum());
for &(o, n) in parts {
let a = v.len();
-10
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@@ -274,13 +274,3 @@ fn a_budget_too_small_to_search_is_spent() {
let f = opus_file(6, 312, 0);
assert_eq!(scanner.find(&f, 0, f.len() as u64).unwrap(), None);
}
#[test]
fn read_packet_checks_its_ranges_against_the_source_before_allocating() {
let f = opus_file(10, 312, 500);
let o = open(&f).unwrap();
let s = o.stream_of(Codec::Opus).unwrap();
// The last packet lies past the end of a source cut short: an error, not a read of missing bytes.
let short = &f[..f.len() / 2];
assert!(matches!(o.read_packet(&short, s, 9), Err(Error::Invalid(_))));
}
+1 -7
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@@ -18,13 +18,7 @@ fn walk(dir: &Path, c: &mut Counts) {
let p = e.path();
let name = e.file_name();
let name = name.to_string_lossy();
// `file_type` does not follow links, so a directory link is not walked (and aliases are
// not counted twice).
let Ok(kind) = e.file_type() else { continue };
if kind.is_symlink() {
continue;
}
if kind.is_dir() {
if p.is_dir() {
// Nested fuzz workspaces and build output are not part of the crate.
if name != "target" && name != "fuzz" && !name.starts_with('.') {
walk(&p, c);