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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/text-size/src/traits.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/text-size/src/traits.rs')
-rw-r--r--vendor/text-size/src/traits.rs36
1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/text-size/src/traits.rs b/vendor/text-size/src/traits.rs
new file mode 100644
index 000000000..d0bb6c1f6
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+++ b/vendor/text-size/src/traits.rs
@@ -0,0 +1,36 @@
+use {crate::TextSize, std::convert::TryInto};
+
+use priv_in_pub::Sealed;
+mod priv_in_pub {
+ pub trait Sealed {}
+}
+
+/// Primitives with a textual length that can be passed to [`TextSize::of`].
+pub trait TextLen: Copy + Sealed {
+ /// The textual length of this primitive.
+ fn text_len(self) -> TextSize;
+}
+
+impl Sealed for &'_ str {}
+impl TextLen for &'_ str {
+ #[inline]
+ fn text_len(self) -> TextSize {
+ self.len().try_into().unwrap()
+ }
+}
+
+impl Sealed for &'_ String {}
+impl TextLen for &'_ String {
+ #[inline]
+ fn text_len(self) -> TextSize {
+ self.as_str().text_len()
+ }
+}
+
+impl Sealed for char {}
+impl TextLen for char {
+ #[inline]
+ fn text_len(self) -> TextSize {
+ (self.len_utf8() as u32).into()
+ }
+}